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File _service:tar_scm:0003-crash-8.0.4-add-support-for-loongarch64.patch of Package crash
From 0630f9aac4a41f14d1f30862ae41dd28aeb61d0e Mon Sep 17 00:00:00 2001 From: doupengda <doupengda@loongson.cn> Date: Tue, 16 Apr 2024 01:44:30 +0000 Subject: [PATCH] crash 8.0.4 add support for loongarch64 --- .rh_rpm_package | 1 - Makefile | 26 +- README | 2 +- configure.c | 28 +- crash.8 | 2 +- defs.h | 162 +- diskdump.c | 22 +- gdb-10.2-loongarch.patch | 15207 +++++++++++++++++++++++++++++++++++++ help.c | 2 +- lkcd_vmdump_v1.h | 2 +- lkcd_vmdump_v2_v3.h | 4 +- loongarch64.c | 1347 ++++ main.c | 3 +- netdump.c | 26 +- ramdump.c | 2 + symbols.c | 23 +- 16 files changed, 16831 insertions(+), 28 deletions(-) delete mode 100644 .rh_rpm_package create mode 100644 gdb-10.2-loongarch.patch create mode 100644 loongarch64.c diff --git a/.rh_rpm_package b/.rh_rpm_package deleted file mode 100644 index 50c496d..0000000 --- a/.rh_rpm_package +++ /dev/null @@ -1 +0,0 @@ -8.0.4 diff --git a/Makefile b/Makefile index 6f94f25..83cff8f 100644 --- a/Makefile +++ b/Makefile @@ -24,7 +24,7 @@ PROGRAM=crash # Supported targets: X86 ALPHA PPC IA64 PPC64 SPARC64 # TARGET and GDB_CONF_FLAGS will be configured automatically by configure # -TARGET= +TARGET=LOONGARCH64 GDB_CONF_FLAGS= ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/) @@ -35,10 +35,10 @@ endif # # GDB, GDB_FILES, GDB_OFILES and GDB_PATCH_FILES will be configured automatically by configure # -GDB= -GDB_FILES= -GDB_OFILES= -GDB_PATCH_FILES= +GDB=gdb-10.2 +GDB_FILES=${GDB_10.2_FILES} +GDB_OFILES=${GDB_10.2_OFILES} +GDB_PATCH_FILES=gdb-10.2.patch # # Default installation directory @@ -65,7 +65,7 @@ CFILES=main.c tools.c global_data.c memory.c filesys.c help.c task.c \ kernel.c test.c gdb_interface.c configure.c net.c dev.c bpf.c \ printk.c \ alpha.c x86.c ppc.c ia64.c s390.c s390x.c s390dbf.c ppc64.c x86_64.c \ - arm.c arm64.c mips.c mips64.c riscv64.c sparc64.c \ + arm.c arm64.c mips.c mips64.c riscv64.c sparc64.c loongarch64.c \ extensions.c remote.c va_server.c va_server_v1.c symbols.c cmdline.c \ lkcd_common.c lkcd_v1.c lkcd_v2_v3.c lkcd_v5.c lkcd_v7.c lkcd_v8.c\ lkcd_fix_mem.c s390_dump.c lkcd_x86_trace.c \ @@ -85,7 +85,7 @@ OBJECT_FILES=main.o tools.o global_data.o memory.o filesys.o help.o task.o \ build_data.o kernel.o test.o gdb_interface.o net.o dev.o bpf.o \ printk.o \ alpha.o x86.o ppc.o ia64.o s390.o s390x.o s390dbf.o ppc64.o x86_64.o \ - arm.o arm64.o mips.o mips64.o riscv64.o sparc64.o \ + arm.o arm64.o mips.o mips64.o riscv64.o sparc64.o loongarch64.o \ extensions.o remote.o va_server.o va_server_v1.o symbols.o cmdline.o \ lkcd_common.o lkcd_v1.o lkcd_v2_v3.o lkcd_v5.o lkcd_v7.o lkcd_v8.o \ lkcd_fix_mem.o s390_dump.o netdump.o diskdump.o makedumpfile.o xendump.o \ @@ -190,7 +190,7 @@ GDB_10.2_OFILES=${GDB}/gdb/symtab.o crash_target.o # # GDB_FLAGS is passed up from the gdb Makefile. # -GDB_FLAGS= +GDB_FLAGS=-DGDB_10_2 # # WARNING_OPTIONS and WARNING_ERROR are both applied on a per-file basis. @@ -207,7 +207,7 @@ TARGET_CFLAGS= CRASH_CFLAGS=-g -D${TARGET} ${TARGET_CFLAGS} ${GDB_FLAGS} ${CFLAGS} -GPL_FILES= +GPL_FILES=COPYING3 TAR_FILES=${SOURCE_FILES} Makefile ${GPL_FILES} README .rh_rpm_package crash.8 \ ${EXTENSION_SOURCE_FILES} ${MEMORY_DRIVER_FILES} CSCOPE_FILES=${SOURCE_FILES} @@ -292,7 +292,9 @@ gdb_unzip: gdb_patch: if [ -f ${GDB}.patch ] && [ -s ${GDB}.patch ]; then \ - patch -p0 < ${GDB}.patch; cp ${GDB}.patch ${GDB}; fi + patch -p0 < ${GDB}.patch; cp ${GDB}.patch ${GDB}; fi + if [ -f ${GDB}-loongarch.patch ] && [ -s ${GDB}-loongarch.patch ]; then \ + patch -p0 < ${GDB}-loongarch.patch; cp ${GDB}-loongarch.patch ${GDB}; fi library: ${OBJECT_FILES} ar -rs ${PROGRAM}lib.a ${OBJECT_FILES} @@ -445,6 +447,10 @@ riscv64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} riscv64.c sparc64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} sparc64.c ${CC} -c ${CRASH_CFLAGS} sparc64.c ${WARNING_OPTIONS} ${WARNING_ERROR} +loongarch64.o: ${GENERIC_HFILES} ${REDHAT_HFILES} loongarch64.c + ${CC} -c ${CRASH_CFLAGS} loongarch64.c ${WARNING_OPTIONS} ${WARNING_ERROR} + + s390.o: ${GENERIC_HFILES} ${IBM_HFILES} s390.c ${CC} -c ${CRASH_CFLAGS} s390.c ${WARNING_OPTIONS} ${WARNING_ERROR} diff --git a/README b/README index 6ecdd10..4392712 100644 --- a/README +++ b/README @@ -37,7 +37,7 @@ These are the current prerequisites: o At this point, x86, ia64, x86_64, ppc64, ppc, arm, arm64, alpha, mips, - mips64, riscv64, s390 and s390x-based kernels are supported. Other + mips64, riscv64, loongarch64, s390 and s390x-based kernels are supported. Other architectures may be addressed in the future. o One size fits all -- the utility can be run on any Linux kernel version diff --git a/configure.c b/configure.c index 08b52be..a6895ec 100644 --- a/configure.c +++ b/configure.c @@ -108,6 +108,7 @@ void add_extra_lib(char *); #undef SPARC64 #undef MIPS64 #undef RISCV64 +#undef LOONGARCH64 #define UNKNOWN 0 #define X86 1 @@ -124,6 +125,7 @@ void add_extra_lib(char *); #define SPARC64 12 #define MIPS64 13 #define RISCV64 14 +#define LOONGARCH64 15 #define TARGET_X86 "TARGET=X86" #define TARGET_ALPHA "TARGET=ALPHA" @@ -139,6 +141,7 @@ void add_extra_lib(char *); #define TARGET_MIPS64 "TARGET=MIPS64" #define TARGET_SPARC64 "TARGET=SPARC64" #define TARGET_RISCV64 "TARGET=RISCV64" +#define TARGET_LOONGARCH64 "TARGET=LOONGARCH64" #define TARGET_CFLAGS_X86 "TARGET_CFLAGS=-D_FILE_OFFSET_BITS=64" #define TARGET_CFLAGS_ALPHA "TARGET_CFLAGS=" @@ -163,6 +166,7 @@ void add_extra_lib(char *); #define TARGET_CFLAGS_SPARC64 "TARGET_CFLAGS=" #define TARGET_CFLAGS_RISCV64 "TARGET_CFLAGS=" #define TARGET_CFLAGS_RISCV64_ON_X86_64 "TARGET_CFLAGS=" +#define TARGET_CFLAGS_LOONGARCH64 "TARGET_CFLAGS=" #define GDB_TARGET_DEFAULT "GDB_CONF_FLAGS=" #define GDB_TARGET_ARM_ON_X86 "GDB_CONF_FLAGS=--target=arm-elf-linux" @@ -413,6 +417,9 @@ get_current_configuration(struct supported_gdb_version *sp) #if defined(__riscv) && (__riscv_xlen == 64) target_data.target = RISCV64; #endif +#ifdef __loongarch64 + target_data.target = LOONGARCH64; +#endif set_initial_target(sp); @@ -472,7 +479,10 @@ get_current_configuration(struct supported_gdb_version *sp) * Build an RISCV64 crash binary on an X86_64 host. */ target_data.target = RISCV64; - } else { + } else if ((target_data.initial_gdb_target == LOONGARCH64) && + (target_data.target != LOONGARCH64)) { + arch_mismatch(sp); + } else { fprintf(stderr, "\ntarget=%s is not supported on the %s host architecture\n\n", target_data.target_as_param, @@ -686,6 +696,9 @@ show_configuration(void) case RISCV64: printf("TARGET: RISCV64\n"); break; + case LOONGARCH64: + printf("TARGET: LOONGARCH64\n"); + break; } if (strlen(target_data.program)) { @@ -811,6 +824,10 @@ build_configure(struct supported_gdb_version *sp) } else target_CFLAGS = TARGET_CFLAGS_RISCV64; break; + case LOONGARCH64: + target = TARGET_LOONGARCH64; + target_CFLAGS = TARGET_CFLAGS_LOONGARCH64; + break; } ldflags = get_extra_flags("LDFLAGS.extra", NULL); @@ -1408,7 +1425,7 @@ make_spec_file(struct supported_gdb_version *sp) printf("Vendor: Red Hat, Inc.\n"); printf("Packager: Dave Anderson <anderson@redhat.com>\n"); printf("ExclusiveOS: Linux\n"); - printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64 riscv64\n"); + printf("ExclusiveArch: %%{ix86} alpha ia64 ppc ppc64 ppc64pseries ppc64iseries x86_64 s390 s390x arm aarch64 ppc64le mips mipsel mips64el sparc64 riscv64 loongarch64\n"); printf("Buildroot: %%{_tmppath}/%%{name}-root\n"); printf("BuildRequires: ncurses-devel zlib-devel bison\n"); printf("Requires: binutils\n"); @@ -1643,6 +1660,8 @@ set_initial_target(struct supported_gdb_version *sp) target_data.initial_gdb_target = ARM; else if (strncmp(buf, "MIPS64", strlen("MIPS64")) == 0) target_data.initial_gdb_target = MIPS64; + else if (strncmp(buf, "LOONGARCH64", strlen("LOONGARCH64")) == 0) + target_data.initial_gdb_target = LOONGARCH64; else if (strncmp(buf, "MIPS", strlen("MIPS")) == 0) target_data.initial_gdb_target = MIPS; else if (strncmp(buf, "SPARC64", strlen("SPARC64")) == 0) @@ -1670,6 +1689,7 @@ target_to_name(int target) case MIPS64: return("MIPS64"); case SPARC64: return("SPARC64"); case RISCV64: return("RISCV64"); + case LOONGARCH64: return("LOONGARCH64"); } return "UNKNOWN"; @@ -1738,6 +1758,10 @@ name_to_target(char *name) return RISCV64; else if (strncmp(name, "riscv64", strlen("riscv64")) == 0) return RISCV64; + else if (strncmp(name, "loongarch64", strlen("loongarch64")) == 0) + return LOONGARCH64; + else if (strncmp(name, "LOONGARCH64", strlen("LOONGARCH64")) == 0) + return LOONGARCH64; return UNKNOWN; } diff --git a/crash.8 b/crash.8 index e553a0b..bcd492d 100644 --- a/crash.8 +++ b/crash.8 @@ -491,7 +491,7 @@ Search for the kernel source code in directory instead of in the standard location that is compiled into the debuginfo data. .TP .BI --kaslr \ offset | auto -If an x86_64 kernel was configured with +If an x86_64 loongarch64 kernel was configured with .B CONFIG_RANDOMIZE_BASE, the offset value is equal to the difference between the symbol values compiled into the vmlinux file and their relocated KASLR values. If set to diff --git a/defs.h b/defs.h index deef1d5..2d1ef9a 100644 --- a/defs.h +++ b/defs.h @@ -76,7 +76,7 @@ #if !defined(X86) && !defined(X86_64) && !defined(ALPHA) && !defined(PPC) && \ !defined(IA64) && !defined(PPC64) && !defined(S390) && !defined(S390X) && \ !defined(ARM) && !defined(ARM64) && !defined(MIPS) && !defined(MIPS64) && \ - !defined(RISCV64) && !defined(SPARC64) + !defined(RISCV64) && !defined(SPARC64) && !defined(LOONGARCH64) #ifdef __alpha__ #define ALPHA #endif @@ -108,6 +108,9 @@ #ifdef __aarch64__ #define ARM64 #endif +#ifdef __loongarch64 +#define LOONGARCH64 +#endif #ifdef __mipsel__ #ifndef __mips64 #define MIPS @@ -159,6 +162,9 @@ #ifdef MIPS64 #define NR_CPUS (256) #endif +#ifdef LOONGARCH64 +#define NR_CPUS (256) +#endif #ifdef SPARC64 #define NR_CPUS (4096) #endif @@ -2016,6 +2022,8 @@ struct offset_table { /* stash of commonly-used offsets */ long atomic_t_counter; long percpu_counter_count; long mm_struct_mm_count; + long task_struct_thread_reg01; + long task_struct_thread_reg03; long task_struct_thread_reg29; long task_struct_thread_reg31; long pt_regs_regs; @@ -3498,6 +3506,44 @@ struct arm64_stackframe { #endif /* ARM64 */ +#ifdef LOONGARCH64 +#define _64BIT_ +#define MACHINE_TYPE "LOONGARCH64" + +#define PAGEBASE(X) (((ulong)(X)) & (ulong)machdep->pagemask) + +#define IS_XKPRANGE(X) (((X) >= 0x8000000000000000lu) && \ + ((X) < 0xc000000000000000lu)) + +#define PTOV(X) ((ulong)(X) + 0x9000000000000000lu) +#define VTOP(X) ((ulong)(X) & 0x0000fffffffffffflu) + +#define IS_VMALLOC_ADDR(X) (vt->vmalloc_start && (ulong)(X) >= vt->vmalloc_start) + +#define DEFAULT_MODULES_VADDR 0xffff800000000000lu +#define MODULES_VADDR (machdep->machspec->modules_vaddr) +#define MODULES_END (machdep->machspec->modules_end) +#define VMALLOC_START (machdep->machspec->vmalloc_start_addr) +#define VMALLOC_END (machdep->machspec->vmalloc_end) + +#define __SWP_TYPE_SHIFT 16 +#define __SWP_TYPE_BITS 8 +#define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1) +#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT) + +#define SWP_TYPE(entry) (((entry) >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK) +#define SWP_OFFSET(entry) ((entry) >> __SWP_OFFSET_SHIFT) + +#define __swp_type(entry) SWP_TYPE(entry) +#define __swp_offset(entry) SWP_OFFSET(entry) + +#define TIF_SIGPENDING (1) + +#define _SECTION_SIZE_BITS 28 +#define _MAX_PHYSMEM_BITS 48 +#endif /* LOONGARCH64 */ + + #ifdef MIPS #define _32BIT_ #define MACHINE_TYPE "MIPS" @@ -4770,6 +4816,10 @@ struct machine_specific { #define MAX_HEXADDR_STRLEN (16) #define UVADDR_PRLEN (16) #endif +#ifdef LOONGARCH64 +#define MAX_HEXADDR_STRLEN (16) +#define UVADDR_PRLEN (16) +#endif #define BADADDR ((ulong)(-1)) #define BADVAL ((ulong)(-1)) @@ -5391,6 +5441,10 @@ void dump_build_data(void); #ifdef SPARC64 #define machdep_init(X) sparc64_init(X) #endif +#ifdef LOONGARCH64 +#define machdep_init(X) loongarch64_init(X) +#endif + int clean_exit(int); int untrusted_file(FILE *, char *); char *readmem_function_name(void); @@ -5882,6 +5936,9 @@ void display_help_screen(char *); #ifdef RISCV64 #define dump_machdep_table(X) riscv64_dump_machdep_table(X) #endif +#ifdef LOONGARCH64 +#define dump_machdep_table(X) loongarch64_dump_machdep_table(X) +#endif extern char *help_pointer[]; extern char *help_alias[]; extern char *help_ascii[]; @@ -7086,6 +7143,109 @@ int sparc64_vmalloc_addr(ulong); error(FATAL, "The -d option is not applicable to sparc64.\n") #endif +/* + * loongarch64.c + */ +void loongarch64_display_regs_from_elf_notes(int, FILE *); + +#ifdef LOONGARCH64 +void loongarch64_init(int); +void loongarch64_dump_machdep_table(ulong); + +#define display_idt_table() \ + error(FATAL, "-d option is not applicable to LOONGARCH64 architecture\n") + +/* from arch/loongarch/include/asm/ptrace.h */ +struct loongarch64_pt_regs { + /* Saved main processor registers. */ + unsigned long regs[32]; + + /* Saved special registers. */ + unsigned long csr_crmd; + unsigned long csr_prmd; + unsigned long csr_euen; + unsigned long csr_ecfg; + unsigned long csr_estat; + unsigned long csr_epc; + unsigned long csr_badvaddr; + unsigned long orig_a0; +}; + +struct loongarch64_unwind_frame { + unsigned long sp; + unsigned long pc; + unsigned long ra; +}; + +#define KSYMS_START (0x1) + +struct machine_specific { + ulong phys_base; + ulong vmalloc_start_addr; + ulong modules_vaddr; + ulong modules_end; + + struct loongarch64_pt_regs *crash_task_regs; +}; + +/* + * Basic page table format: + * + * 63 62 61 PALEN-1 12 10 9 8 7 6 5 4 3 2 1 0 + * +----+--+--+------+--------------------+----+--+--+-+-+-+---+---+-+-+ + * |RPLV|NX|NR| | PA[PALEN-1:12] | |SP|PN|W|P|G|MAT|PLV|D|V| + * +----+--+--+------+--------------------+----+--+--+-+-+-+---+---+-+-+ + * + * + * Huge page table format: + * + * 63 62 61 PALEN-1 12 10 9 8 7 6 5 4 3 2 1 0 + * +----+--+--+------+-----------------+--+----+--+--+-+-+-+---+---+-+-+ + * |RPLV|NX|NR| | PA[PALEN-1:12] | G| |SP|PN|W|P|H|MAT|PLV|D|V| + * +----+--+--+------+-----------------+--+----+--+--+-+-+-+---+---+-+-+ + * + */ +/* from arch/loongarch/include/asm/pgtable-bits.h */ + +/* Page table bits */ +#define _PAGE_VALID_SHIFT 0 +#define _PAGE_DIRTY_SHIFT 1 +#define _PAGE_PLV_SHIFT 2 /* 2~3, two bits */ +#define _CACHE_SHIFT 4 /* 4~5, two bits */ +#define _PAGE_GLOBAL_SHIFT 6 +#define _PAGE_HUGE_SHIFT 6 /* HUGE is a PMD bit */ +#define _PAGE_PRESENT_SHIFT 7 +#define _PAGE_WRITE_SHIFT 8 +#define _PAGE_PROTNONE_SHIFT 9 +#define _PAGE_SPECIAL_SHIFT 10 +#define _PAGE_HGLOBAL_SHIFT 12 /* HGlobal is a PMD bit */ +#define _PAGE_PFN_SHIFT 12 +#define _PAGE_PFN_END_SHIFT 48 +#define _PAGE_NO_READ_SHIFT 61 +#define _PAGE_NO_EXEC_SHIFT 62 +#define _PAGE_RPLV_SHIFT 63 + +/* Used only by software */ +#define _PAGE_PRESENT (1UL << _PAGE_PRESENT_SHIFT) +#define _PAGE_WRITE (1UL << _PAGE_WRITE_SHIFT) +#define _PAGE_PROTNONE (1UL << _PAGE_PROTNONE_SHIFT) +#define _PAGE_SPECIAL (1UL << _PAGE_SPECIAL_SHIFT) + +/* Used by TLB hardware (placed in EntryLo*) */ +#define _PAGE_VALID (1UL << _PAGE_VALID_SHIFT) +#define _PAGE_DIRTY (1UL << _PAGE_DIRTY_SHIFT) +#define _PAGE_PLV (3UL << _PAGE_PLV_SHIFT) +#define _PAGE_GLOBAL (1UL << _PAGE_GLOBAL_SHIFT) +#define _PAGE_HUGE (1UL << _PAGE_HUGE_SHIFT) +#define _PAGE_HGLOBAL (1UL << _PAGE_HGLOBAL_SHIFT) +#define _PAGE_NO_READ (1UL << _PAGE_NO_READ_SHIFT) +#define _PAGE_NO_EXEC (1UL << _PAGE_NO_EXEC_SHIFT) +#define _PAGE_RPLV (1UL << _PAGE_RPLV_SHIFT) +#define _CACHE_MASK (3UL << _CACHE_SHIFT) +#define _PFN_SHIFT (PAGESHIFT() - 12 + _PAGE_PFN_SHIFT) + +#endif /* LOONGARCH64 */ + /* * netdump.c */ diff --git a/diskdump.c b/diskdump.c index 7fbbbf5..8a20f5d 100644 --- a/diskdump.c +++ b/diskdump.c @@ -686,6 +686,9 @@ restart: else if (STRNEQ(header->utsname.machine, "riscv64") && machine_type_mismatch(file, "RISCV64", NULL, 0)) goto err; + else if (STRNEQ(header->utsname.machine, "loongarch64") && + machine_type_mismatch(file, "LOONGARCH64", NULL, 0)) + goto err; if (header->block_size != block_size) { block_size = header->block_size; @@ -846,6 +849,8 @@ restart: dd->machine_type = EM_SPARCV9; else if (machine_type("RISCV64")) dd->machine_type = EM_RISCV; + else if (machine_type("LOONGARCH64")) + dd->machine_type = EM_LOONGARCH; else { error(INFO, "%s: unsupported machine type: %s\n", DISKDUMP_VALID() ? "diskdump" : "compressed kdump", @@ -1600,6 +1605,12 @@ get_diskdump_regs_mips(struct bt_info *bt, ulong *eip, ulong *esp) machdep->get_stack_frame(bt, eip, esp); } +static void +get_diskdump_regs_loongarch64(struct bt_info *bt, ulong *eip, ulong *esp) +{ + machdep->get_stack_frame(bt, eip, esp); +} + static void get_diskdump_regs_riscv64(struct bt_info *bt, ulong *eip, ulong *esp) { @@ -1688,6 +1699,9 @@ get_diskdump_regs(struct bt_info *bt, ulong *eip, ulong *esp) case EM_RISCV: get_diskdump_regs_riscv64(bt, eip, esp); break; + case EM_LOONGARCH: + get_diskdump_regs_loongarch64(bt, eip, esp); + break; default: error(FATAL, "%s: unsupported machine type: %s\n", @@ -1836,7 +1850,7 @@ dump_note_offsets(FILE *fp) if (machine_type("X86_64") || machine_type("S390X") || machine_type("ARM64") || machine_type("PPC64") || machine_type("SPARC64") || machine_type("MIPS64") || - machine_type("RISCV64")) { + machine_type("RISCV64") || machine_type("LOONGARCH64")) { note64 = (void *)dd->notes_buf + tot; len = sizeof(Elf64_Nhdr); if (STRNEQ((char *)note64 + len, "QEMU")) @@ -1947,6 +1961,8 @@ __diskdump_memory_dump(FILE *fp) fprintf(fp, "(EM_AARCH64)\n"); break; case EM_SPARCV9: fprintf(fp, "(EM_SPARCV9)\n"); break; + case EM_LOONGARCH: + fprintf(fp, "(EM_LOONGARCH)\n"); break; default: fprintf(fp, "(unknown)\n"); break; } @@ -2633,6 +2649,8 @@ diskdump_display_regs(int cpu, FILE *ofp) if (machine_type("MIPS64")) mips64_display_regs_from_elf_notes(cpu, ofp); + if (machine_type("LOONGARCH64")) + loongarch64_display_regs_from_elf_notes(cpu, ofp); } void @@ -2644,7 +2662,7 @@ dump_registers_for_compressed_kdump(void) !(machine_type("X86") || machine_type("X86_64") || machine_type("ARM64") || machine_type("PPC64") || machine_type("MIPS") || machine_type("MIPS64") || - machine_type("RISCV64"))) + machine_type("RISCV64") || machine_type("LOONGARCH64"))) error(FATAL, "-r option not supported for this dumpfile\n"); if (machine_type("ARM64") && (kt->cpus != dd->num_prstatus_notes)) diff --git a/gdb-10.2-loongarch.patch b/gdb-10.2-loongarch.patch new file mode 100644 index 0000000..d5a65d0 --- /dev/null +++ b/gdb-10.2-loongarch.patch @@ -0,0 +1,15207 @@ +From 6a84c2ee3967892e476338f8f4b85617ced2c4bb Mon Sep 17 00:00:00 2001 +From: Ming Wang <wangming01@loongson.cn> +Date: Sat, 8 Jul 2023 15:07:21 +0800 +Subject: [PATCH] gdb: Add LoongArch support. + +Signed-off-by: Ming Wang <wangming01@loongson.cn> +--- + bfd/Makefile.am | 17 +- + bfd/Makefile.in | 21 +- + bfd/archures.c | 5 + + bfd/bfd-in2.h | 85 + + bfd/config.bfd | 15 + + bfd/configure | 2 + + bfd/configure.ac | 2 + + bfd/cpu-loongarch.c | 61 + + bfd/elf-bfd.h | 9 + + bfd/elf.c | 114 +- + bfd/elfnn-loongarch.c | 4128 ++++++++++++++++++++++ + bfd/elfxx-loongarch.c | 1618 +++++++++ + bfd/elfxx-loongarch.h | 45 + + bfd/libbfd.h | 80 + + bfd/po/BLD-POTFILES.in | 2 + + bfd/po/SRC-POTFILES.in | 1 + + bfd/reloc.c | 171 + + bfd/targets.c | 8 + + config.guess | 3 + + config.sub | 1 + + gdb/Makefile.in | 13 + + gdb/arch/loongarch-linux-nat.c | 93 + + gdb/arch/loongarch-linux-nat.h | 35 + + gdb/arch/loongarch.c | 75 + + gdb/arch/loongarch.h | 35 + + gdb/configure.host | 3 + + gdb/configure.nat | 4 + + gdb/configure.tgt | 8 + + gdb/doc/gdb.texinfo | 10 + + gdb/features/Makefile | 10 + + gdb/features/loongarch/base32.c | 48 + + gdb/features/loongarch/base32.xml | 46 + + gdb/features/loongarch/base64.c | 48 + + gdb/features/loongarch/base64.xml | 46 + + gdb/features/loongarch/fpu32.c | 54 + + gdb/features/loongarch/fpu32.xml | 53 + + gdb/features/loongarch/fpu64.c | 62 + + gdb/features/loongarch/fpu64.xml | 58 + + gdb/features/loongarch/lasx.c | 80 + + gdb/features/loongarch/lasx.xml | 59 + + gdb/features/loongarch/lbt32.c | 19 + + gdb/features/loongarch/lbt32.xml | 17 + + gdb/features/loongarch/lbt64.c | 19 + + gdb/features/loongarch/lbt64.xml | 17 + + gdb/features/loongarch/lsx.c | 80 + + gdb/features/loongarch/lsx.xml | 59 + + gdb/loongarch-linux-nat.c | 878 +++++ + gdb/loongarch-linux-tdep.c | 709 ++++ + gdb/loongarch-linux-tdep.h | 48 + + gdb/loongarch-tdep.c | 1926 ++++++++++ + gdb/loongarch-tdep.h | 61 + + gdb/nat/loongarch-linux-watch.c | 330 ++ + gdb/nat/loongarch-linux-watch.h | 132 + + gdb/remote.c | 25 + + gdb/target.h | 3 + + gdb/testsuite/gdb.base/dump.exp | 4 + + gdb/testsuite/gdb.base/float.exp | 2 + + gdb/testsuite/gdb.trace/entry-values.exp | 2 + + gdb/testsuite/gdb.xml/tdesc-regs.exp | 5 + + gdbserver/Makefile.in | 2 + + gdbserver/configure.srv | 7 + + gdbserver/linux-loongarch-low.cc | 284 ++ + include/dis-asm.h | 1 + + include/elf/common.h | 14 + + include/elf/loongarch.h | 267 ++ + include/opcode/loongarch.h | 239 ++ + opcodes/Makefile.am | 3 + + opcodes/Makefile.in | 6 + + opcodes/configure | 1 + + opcodes/configure.ac | 1 + + opcodes/disassemble.c | 9 + + opcodes/disassemble.h | 1 + + opcodes/loongarch-coder.c | 481 +++ + opcodes/loongarch-dis.c | 342 ++ + opcodes/loongarch-opc.c | 870 +++++ + opcodes/po/POTFILES.in | 3 + + 76 files changed, 14091 insertions(+), 4 deletions(-) + create mode 100644 bfd/cpu-loongarch.c + create mode 100644 bfd/elfnn-loongarch.c + create mode 100644 bfd/elfxx-loongarch.c + create mode 100644 bfd/elfxx-loongarch.h + create mode 100644 gdb/arch/loongarch-linux-nat.c + create mode 100644 gdb/arch/loongarch-linux-nat.h + create mode 100644 gdb/arch/loongarch.c + create mode 100644 gdb/arch/loongarch.h + create mode 100644 gdb/features/loongarch/base32.c + create mode 100644 gdb/features/loongarch/base32.xml + create mode 100644 gdb/features/loongarch/base64.c + create mode 100644 gdb/features/loongarch/base64.xml + create mode 100644 gdb/features/loongarch/fpu32.c + create mode 100644 gdb/features/loongarch/fpu32.xml + create mode 100644 gdb/features/loongarch/fpu64.c + create mode 100644 gdb/features/loongarch/fpu64.xml + create mode 100644 gdb/features/loongarch/lasx.c + create mode 100644 gdb/features/loongarch/lasx.xml + create mode 100644 gdb/features/loongarch/lbt32.c + create mode 100644 gdb/features/loongarch/lbt32.xml + create mode 100644 gdb/features/loongarch/lbt64.c + create mode 100644 gdb/features/loongarch/lbt64.xml + create mode 100644 gdb/features/loongarch/lsx.c + create mode 100644 gdb/features/loongarch/lsx.xml + create mode 100644 gdb/loongarch-linux-nat.c + create mode 100644 gdb/loongarch-linux-tdep.c + create mode 100644 gdb/loongarch-linux-tdep.h + create mode 100644 gdb/loongarch-tdep.c + create mode 100644 gdb/loongarch-tdep.h + create mode 100644 gdb/nat/loongarch-linux-watch.c + create mode 100644 gdb/nat/loongarch-linux-watch.h + create mode 100644 gdbserver/linux-loongarch-low.cc + create mode 100644 include/elf/loongarch.h + create mode 100644 include/opcode/loongarch.h + create mode 100644 opcodes/loongarch-coder.c + create mode 100644 opcodes/loongarch-dis.c + create mode 100644 opcodes/loongarch-opc.c + +diff --git gdb-10.2/bfd/Makefile.am gdb-10.2/bfd/Makefile.am +index d07c960..d494ebf 100644 +--- gdb-10.2/bfd/Makefile.am ++++ gdb-10.2/bfd/Makefile.am +@@ -118,6 +118,7 @@ ALL_MACHINES = \ + cpu-ip2k.lo \ + cpu-iq2000.lo \ + cpu-lm32.lo \ ++ cpu-loongarch.lo \ + cpu-m10200.lo \ + cpu-m10300.lo \ + cpu-m32c.lo \ +@@ -202,6 +203,7 @@ ALL_MACHINES_CFILES = \ + cpu-ip2k.c \ + cpu-iq2000.c \ + cpu-lm32.c \ ++ cpu-loongarch.c \ + cpu-m10200.c \ + cpu-m10300.c \ + cpu-m32c.c \ +@@ -548,6 +550,9 @@ BFD64_BACKENDS = \ + elf64-ia64.lo \ + elf64-ia64-vms.lo \ + elfxx-ia64.lo \ ++ elf32-loongarch.lo \ ++ elf64-loongarch.lo \ ++ elfxx-loongarch.lo \ + elfn32-mips.lo \ + elf64-mips.lo \ + elfxx-mips.lo \ +@@ -601,6 +606,7 @@ BFD64_BACKENDS_CFILES = \ + elfn32-mips.c \ + elfxx-aarch64.c \ + elfxx-ia64.c \ ++ elfxx-loongarch.c \ + elfxx-mips.c \ + elfxx-riscv.c \ + mach-o-aarch64.c \ +@@ -665,6 +671,7 @@ SOURCE_CFILES = \ + BUILD_CFILES = \ + elf32-aarch64.c elf64-aarch64.c \ + elf32-ia64.c elf64-ia64.c \ ++ elf32-loongarch.c elf64-loongarch.c \ + elf32-riscv.c elf64-riscv.c \ + peigen.c pepigen.c pex64igen.c + +@@ -686,7 +693,7 @@ SOURCE_HFILES = \ + elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \ + elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \ + elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \ +- elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \ ++ elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \ + genlink.h go32stub.h \ + libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \ + libpei.h libxcoff.h \ +@@ -842,6 +849,14 @@ elf64-ia64.c : elfnn-ia64.c + echo "#line 1 \"elfnn-ia64.c\"" > $@ + $(SED) -e s/NN/64/g < $< >> $@ + ++elf32-loongarch.c : elfnn-loongarch.c ++ echo "#line 1 \"elfnn-loongarch.c\"" > $@ ++ $(SED) -e s/NN/32/g < $< >> $@ ++ ++elf64-loongarch.c : elfnn-loongarch.c ++ echo "#line 1 \"elfnn-loongarch.c\"" > $@ ++ $(SED) -e s/NN/64/g < $< >> $@ ++ + elf32-riscv.c : elfnn-riscv.c + echo "#line 1 \"elfnn-riscv.c\"" > $@ + $(SED) -e s/NN/32/g < $< >> $@ +diff --git gdb-10.2/bfd/Makefile.in gdb-10.2/bfd/Makefile.in +index 9cad4da..ecf2c20 100644 +--- gdb-10.2/bfd/Makefile.in ++++ gdb-10.2/bfd/Makefile.in +@@ -543,6 +543,7 @@ ALL_MACHINES = \ + cpu-ip2k.lo \ + cpu-iq2000.lo \ + cpu-lm32.lo \ ++ cpu-loongarch.lo \ + cpu-m10200.lo \ + cpu-m10300.lo \ + cpu-m32c.lo \ +@@ -627,6 +628,7 @@ ALL_MACHINES_CFILES = \ + cpu-ip2k.c \ + cpu-iq2000.c \ + cpu-lm32.c \ ++ cpu-loongarch.c \ + cpu-m10200.c \ + cpu-m10300.c \ + cpu-m32c.c \ +@@ -975,6 +977,9 @@ BFD64_BACKENDS = \ + elf64-ia64.lo \ + elf64-ia64-vms.lo \ + elfxx-ia64.lo \ ++ elf32-loongarch.lo \ ++ elf64-loongarch.lo \ ++ elfxx-loongarch.lo \ + elfn32-mips.lo \ + elf64-mips.lo \ + elfxx-mips.lo \ +@@ -1028,6 +1033,7 @@ BFD64_BACKENDS_CFILES = \ + elfn32-mips.c \ + elfxx-aarch64.c \ + elfxx-ia64.c \ ++ elfxx-loongarch.c \ + elfxx-mips.c \ + elfxx-riscv.c \ + mach-o-aarch64.c \ +@@ -1091,6 +1097,7 @@ SOURCE_CFILES = \ + BUILD_CFILES = \ + elf32-aarch64.c elf64-aarch64.c \ + elf32-ia64.c elf64-ia64.c \ ++ elf32-loongarch.c elf64-loongarch.c \ + elf32-riscv.c elf64-riscv.c \ + peigen.c pepigen.c pex64igen.c + +@@ -1109,7 +1116,7 @@ SOURCE_HFILES = \ + elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \ + elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \ + elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \ +- elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \ ++ elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \ + genlink.h go32stub.h \ + libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \ + libpei.h libxcoff.h \ +@@ -1349,6 +1356,7 @@ distclean-compile: + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-k1om.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-l1om.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-lm32.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-loongarch.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10200.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10300.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m32c.Plo@am__quote@ +@@ -1442,6 +1450,7 @@ distclean-compile: + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-ip2k.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-iq2000.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-lm32.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-loongarch.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32c.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32r.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m68hc11.Plo@am__quote@ +@@ -1492,6 +1501,7 @@ distclean-compile: + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-hppa.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64-vms.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-loongarch.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mips.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mmix.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-nfp.Plo@am__quote@ +@@ -1506,6 +1516,7 @@ distclean-compile: + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfn32-mips.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-aarch64.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-ia64.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-loongarch.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-mips.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-riscv.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-sparc.Plo@am__quote@ +@@ -1972,6 +1983,14 @@ elf64-ia64.c : elfnn-ia64.c + echo "#line 1 \"elfnn-ia64.c\"" > $@ + $(SED) -e s/NN/64/g < $< >> $@ + ++elf32-loongarch.c : elfnn-loongarch.c ++ echo "#line 1 \"elfnn-loongarch.c\"" > $@ ++ $(SED) -e s/NN/32/g < $< >> $@ ++ ++elf64-loongarch.c : elfnn-loongarch.c ++ echo "#line 1 \"elfnn-loongarch.c\"" > $@ ++ $(SED) -e s/NN/64/g < $< >> $@ ++ + elf32-riscv.c : elfnn-riscv.c + echo "#line 1 \"elfnn-riscv.c\"" > $@ + $(SED) -e s/NN/32/g < $< >> $@ +diff --git gdb-10.2/bfd/archures.c gdb-10.2/bfd/archures.c +index 5069864..36ccb1c 100644 +--- gdb-10.2/bfd/archures.c ++++ gdb-10.2/bfd/archures.c +@@ -555,6 +555,9 @@ DESCRIPTION + .#define bfd_mach_ck807 6 + .#define bfd_mach_ck810 7 + .#define bfd_mach_ck860 8 ++. bfd_arch_loongarch, {* LoongArch *} ++.#define bfd_mach_loongarch32 1 ++.#define bfd_mach_loongarch64 2 + . bfd_arch_last + . }; + */ +@@ -636,6 +639,7 @@ extern const bfd_arch_info_type bfd_iq2000_arch; + extern const bfd_arch_info_type bfd_k1om_arch; + extern const bfd_arch_info_type bfd_l1om_arch; + extern const bfd_arch_info_type bfd_lm32_arch; ++extern const bfd_arch_info_type bfd_loongarch_arch; + extern const bfd_arch_info_type bfd_m32c_arch; + extern const bfd_arch_info_type bfd_m32r_arch; + extern const bfd_arch_info_type bfd_m68hc11_arch; +@@ -725,6 +729,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] = + &bfd_k1om_arch, + &bfd_l1om_arch, + &bfd_lm32_arch, ++ &bfd_loongarch_arch, + &bfd_m32c_arch, + &bfd_m32r_arch, + &bfd_m68hc11_arch, +diff --git gdb-10.2/bfd/bfd-in2.h gdb-10.2/bfd/bfd-in2.h +index 935ba53..e8a38b8 100644 +--- gdb-10.2/bfd/bfd-in2.h ++++ gdb-10.2/bfd/bfd-in2.h +@@ -1955,6 +1955,9 @@ enum bfd_architecture + #define bfd_mach_ck807 6 + #define bfd_mach_ck810 7 + #define bfd_mach_ck860 8 ++ bfd_arch_loongarch, /* LoongArch */ ++#define bfd_mach_loongarch32 1 ++#define bfd_mach_loongarch64 2 + bfd_arch_last + }; + +@@ -6273,6 +6276,88 @@ assembler and not (currently) written to any object files. */ + + /* S12Z relocations. */ + BFD_RELOC_S12Z_OPR, ++ ++/* LARCH relocations. */ ++ BFD_RELOC_LARCH_TLS_DTPMOD32, ++ BFD_RELOC_LARCH_TLS_DTPREL32, ++ BFD_RELOC_LARCH_TLS_DTPMOD64, ++ BFD_RELOC_LARCH_TLS_DTPREL64, ++ BFD_RELOC_LARCH_TLS_TPREL32, ++ BFD_RELOC_LARCH_TLS_TPREL64, ++ BFD_RELOC_LARCH_MARK_LA, ++ BFD_RELOC_LARCH_MARK_PCREL, ++ BFD_RELOC_LARCH_SOP_PUSH_PCREL, ++ BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE, ++ BFD_RELOC_LARCH_SOP_PUSH_DUP, ++ BFD_RELOC_LARCH_SOP_PUSH_GPREL, ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL, ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT, ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GD, ++ BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL, ++ BFD_RELOC_LARCH_SOP_ASSERT, ++ BFD_RELOC_LARCH_SOP_NOT, ++ BFD_RELOC_LARCH_SOP_SUB, ++ BFD_RELOC_LARCH_SOP_SL, ++ BFD_RELOC_LARCH_SOP_SR, ++ BFD_RELOC_LARCH_SOP_ADD, ++ BFD_RELOC_LARCH_SOP_AND, ++ BFD_RELOC_LARCH_SOP_IF_ELSE, ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5, ++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12, ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12, ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16, ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2, ++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20, ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2, ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2, ++ BFD_RELOC_LARCH_SOP_POP_32_U, ++ BFD_RELOC_LARCH_ADD8, ++ BFD_RELOC_LARCH_ADD16, ++ BFD_RELOC_LARCH_ADD24, ++ BFD_RELOC_LARCH_ADD32, ++ BFD_RELOC_LARCH_ADD64, ++ BFD_RELOC_LARCH_SUB8, ++ BFD_RELOC_LARCH_SUB16, ++ BFD_RELOC_LARCH_SUB24, ++ BFD_RELOC_LARCH_SUB32, ++ BFD_RELOC_LARCH_SUB64, ++ BFD_RELOC_LARCH_B16, ++ BFD_RELOC_LARCH_B21, ++ BFD_RELOC_LARCH_B26, ++ BFD_RELOC_LARCH_ABS_HI20, ++ BFD_RELOC_LARCH_ABS_LO12, ++ BFD_RELOC_LARCH_ABS64_LO20, ++ BFD_RELOC_LARCH_ABS64_HI12, ++ BFD_RELOC_LARCH_PCALA_HI20, ++ BFD_RELOC_LARCH_PCALA_LO12, ++ BFD_RELOC_LARCH_PCALA64_LO20, ++ BFD_RELOC_LARCH_PCALA64_HI12, ++ BFD_RELOC_LARCH_GOT_PC_HI20, ++ BFD_RELOC_LARCH_GOT_PC_LO12, ++ BFD_RELOC_LARCH_GOT64_PC_LO20, ++ BFD_RELOC_LARCH_GOT64_PC_HI12, ++ BFD_RELOC_LARCH_GOT_HI20, ++ BFD_RELOC_LARCH_GOT_LO12, ++ BFD_RELOC_LARCH_GOT64_LO20, ++ BFD_RELOC_LARCH_GOT64_HI12, ++ BFD_RELOC_LARCH_TLS_LE_HI20, ++ BFD_RELOC_LARCH_TLS_LE_LO12, ++ BFD_RELOC_LARCH_TLS_LE64_LO20, ++ BFD_RELOC_LARCH_TLS_LE64_HI12, ++ BFD_RELOC_LARCH_TLS_IE_PC_HI20, ++ BFD_RELOC_LARCH_TLS_IE_PC_LO12, ++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20, ++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12, ++ BFD_RELOC_LARCH_TLS_IE_HI20, ++ BFD_RELOC_LARCH_TLS_IE_LO12, ++ BFD_RELOC_LARCH_TLS_IE64_LO20, ++ BFD_RELOC_LARCH_TLS_IE64_HI12, ++ BFD_RELOC_LARCH_TLS_LD_PC_HI20, ++ BFD_RELOC_LARCH_TLS_LD_HI20, ++ BFD_RELOC_LARCH_TLS_GD_PC_HI20, ++ BFD_RELOC_LARCH_TLS_GD_HI20, ++ BFD_RELOC_LARCH_32_PCREL, ++ BFD_RELOC_LARCH_RELAX, + BFD_RELOC_UNUSED }; + + typedef enum bfd_reloc_code_real bfd_reloc_code_real_type; +diff --git gdb-10.2/bfd/config.bfd gdb-10.2/bfd/config.bfd +index 6c2919e..417bdb0 100644 +--- gdb-10.2/bfd/config.bfd ++++ gdb-10.2/bfd/config.bfd +@@ -183,6 +183,7 @@ hppa*) targ_archs=bfd_hppa_arch ;; + i[3-7]86) targ_archs=bfd_i386_arch ;; + ia16) targ_archs=bfd_i386_arch ;; + lm32) targ_archs=bfd_lm32_arch ;; ++loongarch*) targ_archs=bfd_loongarch_arch ;; + m6811*|m68hc11*) targ_archs="bfd_m68hc11_arch bfd_m68hc12_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;; + m6812*|m68hc12*) targ_archs="bfd_m68hc12_arch bfd_m68hc11_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;; + m68*) targ_archs=bfd_m68k_arch ;; +@@ -1401,6 +1402,20 @@ case "${targ}" in + targ_underscore=yes + ;; + ++#ifdef BFD64 ++ loongarch32-*) ++ targ_defvec=loongarch_elf32_vec ++ targ_selvecs="loongarch_elf32_vec" ++ want64=true ++ ;; ++ ++ loongarch64-*) ++ targ_defvec=loongarch_elf64_vec ++ targ_selvecs="loongarch_elf32_vec loongarch_elf64_vec" ++ want64=true ++ ;; ++#endif ++ + # END OF targmatch.h + bpf-*-*) + echo "*** Configuration $targ is not fully supported." >&2 +diff --git gdb-10.2/bfd/configure gdb-10.2/bfd/configure +index a9c4fd9..251439e 100755 +--- gdb-10.2/bfd/configure ++++ gdb-10.2/bfd/configure +@@ -14836,6 +14836,8 @@ do + l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;; + lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;; + lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;; ++ loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;; ++ loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;; + m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;; + m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;; + m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;; +diff --git gdb-10.2/bfd/configure.ac gdb-10.2/bfd/configure.ac +index f62659a..e97c9fc 100644 +--- gdb-10.2/bfd/configure.ac ++++ gdb-10.2/bfd/configure.ac +@@ -542,6 +542,8 @@ do + l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;; + lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;; + lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;; ++ loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;; ++ loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;; + m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;; + m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;; + m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;; +diff --git gdb-10.2/bfd/cpu-loongarch.c gdb-10.2/bfd/cpu-loongarch.c +new file mode 100644 +index 0000000..01d6c70 +--- /dev/null ++++ gdb-10.2/bfd/cpu-loongarch.c +@@ -0,0 +1,61 @@ ++/* BFD support for LoongArch. ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of BFD, the Binary File Descriptor library. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include "sysdep.h" ++#include "bfd.h" ++#include "libbfd.h" ++ ++static const bfd_arch_info_type bfd_loongarch32_arch = ++{ ++ 32, /* 32 bits in a word. */ ++ 32, /* 64 bits in an address. */ ++ 8, /* 8 bits in a byte. */ ++ bfd_arch_loongarch, /* Architecture. */ ++ bfd_mach_loongarch32, /* Machine number - 0 for now. */ ++ "loongarch32", /* Architecture name. */ ++ "Loongarch32", /* Printable name. */ ++ 3, /* Section align power. */ ++ TRUE, /* This is the default architecture. */ ++ bfd_default_compatible, /* Architecture comparison function. */ ++ bfd_default_scan, /* String to architecture conversion. */ ++ bfd_arch_default_fill, /* Default fill. */ ++ NULL, /* Next in list. */ ++ 0, ++}; ++ ++const bfd_arch_info_type bfd_loongarch_arch = ++{ ++ 32, /* 32 bits in a word. */ ++ 64, /* 64 bits in an address. */ ++ 8, /* 8 bits in a byte. */ ++ bfd_arch_loongarch, /* Architecture. */ ++ /* Machine number of LoongArch64 is larger ++ * so that LoongArch64 is compatible to LoongArch32. */ ++ bfd_mach_loongarch64, ++ "loongarch64", /* Architecture name. */ ++ "Loongarch64", /* Printable name. */ ++ 3, /* Section align power. */ ++ TRUE, /* This is the default architecture. */ ++ bfd_default_compatible, /* Architecture comparison function. */ ++ bfd_default_scan, /* String to architecture conversion. */ ++ bfd_arch_default_fill, /* Default fill. */ ++ &bfd_loongarch32_arch, /* Next in list. */ ++ 0, ++}; +diff --git gdb-10.2/bfd/elf-bfd.h gdb-10.2/bfd/elf-bfd.h +index eebdf9a..148c08c 100644 +--- gdb-10.2/bfd/elf-bfd.h ++++ gdb-10.2/bfd/elf-bfd.h +@@ -500,6 +500,7 @@ enum elf_target_id + I386_ELF_DATA, + IA64_ELF_DATA, + LM32_ELF_DATA, ++ LARCH_ELF_DATA, + M32R_ELF_DATA, + M68HC11_ELF_DATA, + M68K_ELF_DATA, +@@ -2799,6 +2800,14 @@ extern char *elfcore_write_lwpstatus + (bfd *, char *, int *, long, int, const void *); + extern char *elfcore_write_register_note + (bfd *, char *, int *, const char *, const void *, int); ++extern char *elfcore_write_loongarch_cpucfg ++ (bfd *, char *, int *, const void*, int); ++extern char *elfcore_write_loongarch_lbt ++ (bfd *, char *, int *, const void*, int); ++extern char *elfcore_write_loongarch_lsx ++ (bfd *, char *, int *, const void*, int); ++extern char *elfcore_write_loongarch_lasx ++ (bfd *, char *, int *, const void*, int); + + /* Internal structure which holds information to be included in the + PRPSINFO section of Linux core files. +diff --git gdb-10.2/bfd/elf.c gdb-10.2/bfd/elf.c +index 5a02f8d..580d7c5 100644 +--- gdb-10.2/bfd/elf.c ++++ gdb-10.2/bfd/elf.c +@@ -4391,7 +4391,7 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info) + { + /* If we have a loadable interpreter section, we need a + PT_INTERP segment. In this case, assume we also need a +- PT_PHDR segment, although that may not be true for all ++ PT_PHDR segment, although that may not be TRUE for all + targets. */ + segs += 2; + } +@@ -9903,6 +9903,30 @@ elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) + return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); + } + ++static bfd_boolean ++elfcore_grok_loongarch_cpucfg (bfd *abfd, Elf_Internal_Note *note) ++{ ++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-cpucfg", note); ++} ++ ++static bfd_boolean ++elfcore_grok_loongarch_lbt (bfd *abfd, Elf_Internal_Note *note) ++{ ++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lbt", note); ++} ++ ++static bfd_boolean ++elfcore_grok_loongarch_lsx (bfd *abfd, Elf_Internal_Note *note) ++{ ++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lsx", note); ++} ++ ++static bfd_boolean ++elfcore_grok_loongarch_lasx (bfd *abfd, Elf_Internal_Note *note) ++{ ++ return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lasx", note); ++} ++ + #if defined (HAVE_PRPSINFO_T) + typedef prpsinfo_t elfcore_psinfo_t; + #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ +@@ -10560,6 +10584,34 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) + else + return TRUE; + ++ case NT_LARCH_CPUCFG: ++ if (note->namesz == 6 ++ && strcmp (note->namedata, "LINUX") == 0) ++ return elfcore_grok_loongarch_cpucfg (abfd, note); ++ else ++ return TRUE; ++ ++ case NT_LARCH_LBT: ++ if (note->namesz == 6 ++ && strcmp (note->namedata, "LINUX") == 0) ++ return elfcore_grok_loongarch_lbt (abfd, note); ++ else ++ return TRUE; ++ ++ case NT_LARCH_LSX: ++ if (note->namesz == 6 ++ && strcmp (note->namedata, "LINUX") == 0) ++ return elfcore_grok_loongarch_lsx (abfd, note); ++ else ++ return TRUE; ++ ++ case NT_LARCH_LASX: ++ if (note->namesz == 6 ++ && strcmp (note->namedata, "LINUX") == 0) ++ return elfcore_grok_loongarch_lasx (abfd, note); ++ else ++ return TRUE; ++ + case NT_PRPSINFO: + case NT_PSINFO: + if (bed->elf_backend_grok_psinfo) +@@ -11941,6 +11993,55 @@ elfcore_write_arc_v2 (bfd *abfd, + note_name, NT_ARC_V2, arc_v2, size); + } + ++char * ++elfcore_write_loongarch_cpucfg (bfd *abfd, ++ char *buf, ++ int *bufsiz, ++ const void *loongarch_cpucfg, ++ int size) ++{ ++ char *note_name = "LINUX"; ++ return elfcore_write_note (abfd, buf, bufsiz, ++ note_name, NT_LARCH_CPUCFG, ++ loongarch_cpucfg, size); ++} ++ ++char * ++elfcore_write_loongarch_lbt (bfd *abfd, ++ char *buf, ++ int *bufsiz, ++ const void *loongarch_lbt, ++ int size) ++{ ++ char *note_name = "LINUX"; ++ return elfcore_write_note (abfd, buf, bufsiz, ++ note_name, NT_LARCH_LBT, loongarch_lbt, size); ++} ++ ++char * ++elfcore_write_loongarch_lsx (bfd *abfd, ++ char *buf, ++ int *bufsiz, ++ const void *loongarch_lsx, ++ int size) ++{ ++ char *note_name = "LINUX"; ++ return elfcore_write_note (abfd, buf, bufsiz, ++ note_name, NT_LARCH_LSX, loongarch_lsx, size); ++} ++ ++char * ++elfcore_write_loongarch_lasx (bfd *abfd, ++ char *buf, ++ int *bufsiz, ++ const void *loongarch_lasx, ++ int size) ++{ ++ char *note_name = "LINUX"; ++ return elfcore_write_note (abfd, buf, bufsiz, ++ note_name, NT_LARCH_LASX, loongarch_lasx, size); ++} ++ + char * + elfcore_write_register_note (bfd *abfd, + char *buf, +@@ -12025,6 +12126,15 @@ elfcore_write_register_note (bfd *abfd, + return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); + if (strcmp (section, ".reg-arc-v2") == 0) + return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); ++ if (strcmp (section, ".reg-loongarch-cpucfg") == 0) ++ return elfcore_write_loongarch_cpucfg (abfd, buf, bufsiz, data, size); ++ if (strcmp (section, ".reg-loongarch-lbt") == 0) ++ return elfcore_write_loongarch_lbt (abfd, buf, bufsiz, data, size); ++ if (strcmp (section, ".reg-loongarch-lsx") == 0) ++ return elfcore_write_loongarch_lsx (abfd, buf, bufsiz, data, size); ++ if (strcmp (section, ".reg-loongarch-lasx") == 0) ++ return elfcore_write_loongarch_lasx (abfd, buf, bufsiz, data, size); ++ + return NULL; + } + +@@ -12491,7 +12601,7 @@ _bfd_elf_final_write_processing (bfd *abfd) + + /* Return TRUE for ELF symbol types that represent functions. + This is the default version of this function, which is sufficient for +- most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ ++ most targets. It returns TRUE if TYPE is STT_FUNC or STT_GNU_IFUNC. */ + + bfd_boolean + _bfd_elf_is_function_type (unsigned int type) +diff --git gdb-10.2/bfd/elfnn-loongarch.c gdb-10.2/bfd/elfnn-loongarch.c +new file mode 100644 +index 0000000..226cd59 +--- /dev/null ++++ gdb-10.2/bfd/elfnn-loongarch.c +@@ -0,0 +1,4128 @@ ++/* LoongArch-specific support for NN-bit ELF. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of BFD, the Binary File Descriptor library. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include "ansidecl.h" ++#include "sysdep.h" ++#include "bfd.h" ++#include "libbfd.h" ++#define ARCH_SIZE NN ++#include "elf-bfd.h" ++#include "objalloc.h" ++#include "elf/loongarch.h" ++#include "elfxx-loongarch.h" ++ ++static bfd_boolean ++loongarch_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, ++ Elf_Internal_Rela *dst) ++{ ++ cache_ptr->howto = loongarch_elf_rtype_to_howto (abfd, ++ ELFNN_R_TYPE (dst->r_info)); ++ return cache_ptr->howto != NULL; ++} ++ ++/* LoongArch ELF linker hash entry. */ ++struct loongarch_elf_link_hash_entry ++{ ++ struct elf_link_hash_entry elf; ++ ++#define GOT_UNKNOWN 0 ++#define GOT_NORMAL 1 ++#define GOT_TLS_GD 2 ++#define GOT_TLS_IE 4 ++#define GOT_TLS_LE 8 ++ char tls_type; ++}; ++ ++#define loongarch_elf_hash_entry(ent) \ ++ ((struct loongarch_elf_link_hash_entry *) (ent)) ++ ++struct _bfd_loongarch_elf_obj_tdata ++{ ++ struct elf_obj_tdata root; ++ ++ /* The tls_type for each local got entry. */ ++ char *local_got_tls_type; ++}; ++ ++#define _bfd_loongarch_elf_tdata(abfd) \ ++ ((struct _bfd_loongarch_elf_obj_tdata *) (abfd)->tdata.any) ++ ++#define _bfd_loongarch_elf_local_got_tls_type(abfd) \ ++ (_bfd_loongarch_elf_tdata (abfd)->local_got_tls_type) ++ ++#define _bfd_loongarch_elf_tls_type(abfd, h, symndx) \ ++ (*((h) != NULL \ ++ ? &loongarch_elf_hash_entry (h)->tls_type \ ++ : &_bfd_loongarch_elf_local_got_tls_type (abfd)[symndx])) ++ ++#define is_loongarch_elf(bfd) \ ++ (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ ++ && elf_tdata (bfd) != NULL \ ++ && elf_object_id (bfd) == LARCH_ELF_DATA) ++ ++struct loongarch_elf_link_hash_table ++{ ++ struct elf_link_hash_table elf; ++ ++ /* Short-cuts to get to dynamic linker sections. */ ++ asection *sdyntdata; ++ ++ /* Small local sym to section mapping cache. */ ++ struct sym_cache sym_cache; ++ ++ /* Used by local STT_GNU_IFUNC symbols. */ ++ htab_t loc_hash_table; ++ void *loc_hash_memory; ++ ++ /* The max alignment of output sections. */ ++ bfd_vma max_alignment; ++}; ++ ++/* Get the LoongArch ELF linker hash table from a link_info structure. */ ++#define loongarch_elf_hash_table(p) \ ++ (elf_hash_table_id (elf_hash_table (p)) == LARCH_ELF_DATA \ ++ ? ((struct loongarch_elf_link_hash_table *) ((p)->hash)) \ ++ : NULL) ++ ++#define MINUS_ONE ((bfd_vma) 0 - 1) ++ ++#define sec_addr(sec) ((sec)->output_section->vma + (sec)->output_offset) ++ ++#define LARCH_ELF_LOG_WORD_BYTES (ARCH_SIZE == 32 ? 2 : 3) ++#define LARCH_ELF_WORD_BYTES (1 << LARCH_ELF_LOG_WORD_BYTES) ++ ++#define PLT_HEADER_INSNS 8 ++#define PLT_HEADER_SIZE (PLT_HEADER_INSNS * 4) ++ ++#define PLT_ENTRY_INSNS 4 ++#define PLT_ENTRY_SIZE (PLT_ENTRY_INSNS * 4) ++ ++#define GOT_ENTRY_SIZE (LARCH_ELF_WORD_BYTES) ++ ++#define GOTPLT_HEADER_SIZE (GOT_ENTRY_SIZE * 2) ++ ++#define elf_backend_want_got_plt 1 ++ ++#define elf_backend_plt_readonly 1 ++ ++#define elf_backend_want_plt_sym 1 ++#define elf_backend_plt_alignment 4 ++#define elf_backend_can_gc_sections 1 ++#define elf_backend_can_refcount 1 ++#define elf_backend_want_got_sym 1 ++ ++#define elf_backend_got_header_size (GOT_ENTRY_SIZE * 1) ++ ++#define elf_backend_want_dynrelro 1 ++#define elf_backend_rela_normal 1 ++#define elf_backend_default_execstack 0 ++ ++/* Generate a PLT header. */ ++ ++static bfd_boolean ++loongarch_make_plt_header (bfd_vma got_plt_addr, bfd_vma plt_header_addr, ++ uint32_t *entry) ++{ ++ bfd_vma pcrel = got_plt_addr - plt_header_addr; ++ bfd_vma hi, lo; ++ ++ if (pcrel + 0x80000800 > 0xffffffff) ++ { ++ _bfd_error_handler (_("%#" PRIx64 " invaild imm"), (uint64_t) pcrel); ++ bfd_set_error (bfd_error_bad_value); ++ return FALSE; ++ } ++ hi = ((pcrel + 0x800) >> 12) & 0xfffff; ++ lo = pcrel & 0xfff; ++ ++ /* pcaddu12i $t2, %hi(%pcrel(.got.plt)) ++ sub.[wd] $t1, $t1, $t3 ++ ld.[wd] $t3, $t2, %lo(%pcrel(.got.plt)) # _dl_runtime_resolve ++ addi.[wd] $t1, $t1, -(PLT_HEADER_SIZE + 12) ++ addi.[wd] $t0, $t2, %lo(%pcrel(.got.plt)) ++ srli.[wd] $t1, $t1, log2(16 / GOT_ENTRY_SIZE) ++ ld.[wd] $t0, $t0, GOT_ENTRY_SIZE ++ jirl $r0, $t3, 0 */ ++ ++ if (GOT_ENTRY_SIZE == 8) ++ { ++ entry[0] = 0x1c00000e | (hi & 0xfffff) << 5; ++ entry[1] = 0x0011bdad; ++ entry[2] = 0x28c001cf | (lo & 0xfff) << 10; ++ entry[3] = 0x02c001ad | ((-(PLT_HEADER_SIZE + 12)) & 0xfff) << 10; ++ entry[4] = 0x02c001cc | (lo & 0xfff) << 10; ++ entry[5] = 0x004501ad | (4 - LARCH_ELF_LOG_WORD_BYTES) << 10; ++ entry[6] = 0x28c0018c | GOT_ENTRY_SIZE << 10; ++ entry[7] = 0x4c0001e0; ++ } ++ else ++ { ++ entry[0] = 0x1c00000e | (hi & 0xfffff) << 5; ++ entry[1] = 0x00113dad; ++ entry[2] = 0x288001cf | (lo & 0xfff) << 10; ++ entry[3] = 0x028001ad | ((-(PLT_HEADER_SIZE + 12)) & 0xfff) << 10; ++ entry[4] = 0x028001cc | (lo & 0xfff) << 10; ++ entry[5] = 0x004481ad | (4 - LARCH_ELF_LOG_WORD_BYTES) << 10; ++ entry[6] = 0x2880018c | GOT_ENTRY_SIZE << 10; ++ entry[7] = 0x4c0001e0; ++ } ++ return TRUE; ++} ++ ++/* Generate a PLT entry. */ ++ ++static bfd_boolean ++loongarch_make_plt_entry (bfd_vma got_plt_entry_addr, bfd_vma plt_entry_addr, ++ uint32_t *entry) ++{ ++ bfd_vma pcrel = got_plt_entry_addr - plt_entry_addr; ++ bfd_vma hi, lo; ++ ++ if (pcrel + 0x80000800 > 0xffffffff) ++ { ++ _bfd_error_handler (_("%#" PRIx64 " invaild imm"), (uint64_t) pcrel); ++ bfd_set_error (bfd_error_bad_value); ++ return FALSE; ++ } ++ hi = ((pcrel + 0x800) >> 12) & 0xfffff; ++ lo = pcrel & 0xfff; ++ ++ entry[0] = 0x1c00000f | (hi & 0xfffff) << 5; ++ entry[1] = ((GOT_ENTRY_SIZE == 8 ? 0x28c001ef : 0x288001ef) ++ | (lo & 0xfff) << 10); ++ entry[2] = 0x4c0001ed; /* jirl $r13, $15, 0 */ ++ entry[3] = 0x03400000; /* nop */ ++ ++ return TRUE; ++} ++ ++/* Create an entry in an LoongArch ELF linker hash table. */ ++ ++static struct bfd_hash_entry * ++link_hash_newfunc (struct bfd_hash_entry *entry, struct bfd_hash_table *table, ++ const char *string) ++{ ++ struct loongarch_elf_link_hash_entry *eh; ++ ++ /* Allocate the structure if it has not already been allocated by a ++ subclass. */ ++ if (entry == NULL) ++ { ++ entry = bfd_hash_allocate (table, sizeof (*eh)); ++ if (entry == NULL) ++ return entry; ++ } ++ ++ /* Call the allocation method of the superclass. */ ++ entry = _bfd_elf_link_hash_newfunc (entry, table, string); ++ if (entry != NULL) ++ { ++ eh = (struct loongarch_elf_link_hash_entry *) entry; ++ eh->tls_type = GOT_UNKNOWN; ++ } ++ ++ return entry; ++} ++ ++/* Compute a hash of a local hash entry. We use elf_link_hash_entry ++ for local symbol so that we can handle local STT_GNU_IFUNC symbols ++ as global symbol. We reuse indx and dynstr_index for local symbol ++ hash since they aren't used by global symbols in this backend. */ ++ ++static hashval_t ++elfNN_loongarch_local_htab_hash (const void *ptr) ++{ ++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) ptr; ++ return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); ++} ++ ++/* Compare local hash entries. */ ++ ++static int ++elfNN_loongarch_local_htab_eq (const void *ptr1, const void *ptr2) ++{ ++ struct elf_link_hash_entry *h1 = (struct elf_link_hash_entry *) ptr1; ++ struct elf_link_hash_entry *h2 = (struct elf_link_hash_entry *) ptr2; ++ ++ return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; ++} ++ ++/* Find and/or create a hash entry for local symbol. */ ++static struct elf_link_hash_entry * ++elfNN_loongarch_get_local_sym_hash (struct loongarch_elf_link_hash_table *htab, ++ bfd *abfd, const Elf_Internal_Rela *rel, ++ bfd_boolean create) ++{ ++ struct loongarch_elf_link_hash_entry e, *ret; ++ asection *sec = abfd->sections; ++ hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, ELFNN_R_SYM (rel->r_info)); ++ void **slot; ++ ++ e.elf.indx = sec->id; ++ e.elf.dynstr_index = ELFNN_R_SYM (rel->r_info); ++ slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, ++ create ? INSERT : NO_INSERT); ++ ++ if (!slot) ++ return NULL; ++ ++ if (*slot) ++ { ++ ret = (struct loongarch_elf_link_hash_entry *) *slot; ++ return &ret->elf; ++ } ++ ++ ret = ((struct loongarch_elf_link_hash_entry *) ++ objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, ++ sizeof (struct loongarch_elf_link_hash_entry))); ++ if (ret) ++ { ++ memset (ret, 0, sizeof (*ret)); ++ ret->elf.indx = sec->id; ++ ret->elf.pointer_equality_needed = 0; ++ ret->elf.dynstr_index = ELFNN_R_SYM (rel->r_info); ++ ret->elf.dynindx = -1; ++ ret->elf.needs_plt = 0; ++ ret->elf.plt.refcount = -1; ++ ret->elf.got.refcount = -1; ++ ret->elf.def_dynamic = 0; ++ ret->elf.def_regular = 1; ++ ret->elf.ref_dynamic = 0; /* This should be always 0 for local. */ ++ ret->elf.ref_regular = 0; ++ ret->elf.forced_local = 1; ++ ret->elf.root.type = bfd_link_hash_defined; ++ *slot = ret; ++ } ++ return &ret->elf; ++} ++ ++/* Destroy an LoongArch elf linker hash table. */ ++ ++static void ++elfNN_loongarch_link_hash_table_free (bfd *obfd) ++{ ++ struct loongarch_elf_link_hash_table *ret; ++ ret = (struct loongarch_elf_link_hash_table *) obfd->link.hash; ++ ++ if (ret->loc_hash_table) ++ htab_delete (ret->loc_hash_table); ++ if (ret->loc_hash_memory) ++ objalloc_free ((struct objalloc *) ret->loc_hash_memory); ++ ++ _bfd_elf_link_hash_table_free (obfd); ++} ++ ++/* Create a LoongArch ELF linker hash table. */ ++ ++static struct bfd_link_hash_table * ++loongarch_elf_link_hash_table_create (bfd *abfd) ++{ ++ struct loongarch_elf_link_hash_table *ret; ++ bfd_size_type amt = sizeof (struct loongarch_elf_link_hash_table); ++ ++ ret = (struct loongarch_elf_link_hash_table *) bfd_zmalloc (amt); ++ if (ret == NULL) ++ return NULL; ++ ++ if (!_bfd_elf_link_hash_table_init ++ (&ret->elf, abfd, link_hash_newfunc, ++ sizeof (struct loongarch_elf_link_hash_entry), LARCH_ELF_DATA)) ++ { ++ free (ret); ++ return NULL; ++ } ++ ++ ret->max_alignment = MINUS_ONE; ++ ++ ret->loc_hash_table = htab_try_create (1024, elfNN_loongarch_local_htab_hash, ++ elfNN_loongarch_local_htab_eq, NULL); ++ ret->loc_hash_memory = objalloc_create (); ++ if (!ret->loc_hash_table || !ret->loc_hash_memory) ++ { ++ elfNN_loongarch_link_hash_table_free (abfd); ++ return NULL; ++ } ++ ret->elf.root.hash_table_free = elfNN_loongarch_link_hash_table_free; ++ ++ return &ret->elf.root; ++} ++ ++/* Merge backend specific data from an object file to the output ++ object file when linking. */ ++ ++static bfd_boolean ++elfNN_loongarch_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) ++{ ++ bfd *obfd = info->output_bfd; ++ flagword in_flags = elf_elfheader (ibfd)->e_flags; ++ flagword out_flags = elf_elfheader (obfd)->e_flags; ++ ++ if (!is_loongarch_elf (ibfd) || !is_loongarch_elf (obfd)) ++ return TRUE; ++ ++ if (strcmp (bfd_get_target (ibfd), bfd_get_target (obfd)) != 0) ++ { ++ _bfd_error_handler (_("%pB: ABI is incompatible with that of " ++ "the selected emulation:\n" ++ " target emulation `%s' does not match `%s'"), ++ ibfd, bfd_get_target (ibfd), bfd_get_target (obfd)); ++ return FALSE; ++ } ++ ++ if (!_bfd_elf_merge_object_attributes (ibfd, info)) ++ return FALSE; ++ ++ /* If the input BFD is not a dynamic object and it does not contain any ++ non-data sections, do not account its ABI. For example, various ++ packages produces such data-only relocatable objects with ++ `ld -r -b binary` or `objcopy`, and these objects have zero e_flags. ++ But they are compatible with all ABIs. */ ++ if (!(ibfd->flags & DYNAMIC)) ++ { ++ asection *sec; ++ bfd_boolean have_code_sections = FALSE; ++ for (sec = ibfd->sections; sec != NULL; sec = sec->next) ++ if ((bfd_section_flags (sec) ++ & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) ++ == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) ++ { ++ have_code_sections = TRUE; ++ break; ++ } ++ if (!have_code_sections) ++ return TRUE; ++ } ++ ++ if (!elf_flags_init (obfd)) ++ { ++ elf_flags_init (obfd) = TRUE; ++ elf_elfheader (obfd)->e_flags = in_flags; ++ return TRUE; ++ } ++ ++ /* Disallow linking different ABIs. */ ++ if (EF_LOONGARCH_ABI(out_flags ^ in_flags) & EF_LOONGARCH_ABI_MASK) ++ { ++ _bfd_error_handler (_("%pB: can't link different ABI object."), ibfd); ++ goto fail; ++ } ++ ++ return TRUE; ++ ++ fail: ++ bfd_set_error (bfd_error_bad_value); ++ return FALSE; ++} ++ ++/* Create the .got section. */ ++ ++static bfd_boolean ++loongarch_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) ++{ ++ flagword flags; ++ char *name; ++ asection *s, *s_got; ++ struct elf_link_hash_entry *h; ++ const struct elf_backend_data *bed = get_elf_backend_data (abfd); ++ struct elf_link_hash_table *htab = elf_hash_table (info); ++ ++ /* This function may be called more than once. */ ++ if (htab->sgot != NULL) ++ return TRUE; ++ ++ flags = bed->dynamic_sec_flags; ++ name = bed->rela_plts_and_copies_p ? ".rela.got" : ".rel.got"; ++ s = bfd_make_section_anyway_with_flags (abfd, name, flags | SEC_READONLY); ++ ++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align)) ++ return FALSE; ++ htab->srelgot = s; ++ ++ s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); ++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align)) ++ return FALSE; ++ htab->sgot = s; ++ ++ /* The first bit of the global offset table is the header. */ ++ s->size += bed->got_header_size; ++ ++ if (bed->want_got_plt) ++ { ++ s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); ++ if (s == NULL || !bfd_set_section_alignment (s, bed->s->log_file_align)) ++ return FALSE; ++ htab->sgotplt = s; ++ ++ /* Reserve room for the header. */ ++ s->size = GOTPLT_HEADER_SIZE; ++ } ++ ++ if (bed->want_got_sym) ++ { ++ /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got ++ section. We don't do this in the linker script because we don't want ++ to define the symbol if we are not creating a global offset table. */ ++ h = _bfd_elf_define_linkage_sym (abfd, info, s_got, ++ "_GLOBAL_OFFSET_TABLE_"); ++ elf_hash_table (info)->hgot = h; ++ if (h == NULL) ++ return FALSE; ++ } ++ return TRUE; ++} ++ ++/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and ++ .rela.bss sections in DYNOBJ, and set up shortcuts to them in our ++ hash table. */ ++ ++static bfd_boolean ++loongarch_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) ++{ ++ struct loongarch_elf_link_hash_table *htab; ++ ++ htab = loongarch_elf_hash_table (info); ++ BFD_ASSERT (htab != NULL); ++ ++ if (!loongarch_elf_create_got_section (dynobj, info)) ++ return FALSE; ++ ++ if (!_bfd_elf_create_dynamic_sections (dynobj, info)) ++ return FALSE; ++ ++ if (!bfd_link_pic (info)) ++ htab->sdyntdata ++ = bfd_make_section_anyway_with_flags (dynobj, ".tdata.dyn", ++ SEC_ALLOC | SEC_THREAD_LOCAL); ++ ++ if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss ++ || (!bfd_link_pic (info) && (!htab->elf.srelbss || !htab->sdyntdata))) ++ abort (); ++ ++ return TRUE; ++} ++ ++static bfd_boolean ++loongarch_elf_record_tls_and_got_reference (bfd *abfd, ++ struct bfd_link_info *info, ++ struct elf_link_hash_entry *h, ++ unsigned long symndx, ++ char tls_type) ++{ ++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info); ++ Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; ++ ++ /* This is a global offset table entry for a local symbol. */ ++ if (elf_local_got_refcounts (abfd) == NULL) ++ { ++ bfd_size_type size = ++ symtab_hdr->sh_info * (sizeof (bfd_vma) + sizeof (tls_type)); ++ if (!(elf_local_got_refcounts (abfd) = bfd_zalloc (abfd, size))) ++ return FALSE; ++ _bfd_loongarch_elf_local_got_tls_type (abfd) = ++ (char *) (elf_local_got_refcounts (abfd) + symtab_hdr->sh_info); ++ } ++ ++ switch (tls_type) ++ { ++ case GOT_NORMAL: ++ case GOT_TLS_GD: ++ case GOT_TLS_IE: ++ /* Need GOT. */ ++ if (htab->elf.sgot == NULL ++ && !loongarch_elf_create_got_section (htab->elf.dynobj, info)) ++ return FALSE; ++ if (h) ++ { ++ if (h->got.refcount < 0) ++ h->got.refcount = 0; ++ h->got.refcount++; ++ } ++ else ++ elf_local_got_refcounts (abfd)[symndx]++; ++ break; ++ case GOT_TLS_LE: ++ /* No need for GOT. */ ++ break; ++ default: ++ _bfd_error_handler (_("Internal error: unreachable.")); ++ return FALSE; ++ } ++ ++ char *new_tls_type = &_bfd_loongarch_elf_tls_type (abfd, h, symndx); ++ *new_tls_type |= tls_type; ++ if ((*new_tls_type & GOT_NORMAL) && (*new_tls_type & ~GOT_NORMAL)) ++ { ++ _bfd_error_handler (_("%pB: `%s' accessed both as normal and " ++ "thread local symbol"), ++ abfd, ++ h ? h->root.root.string : "<local>"); ++ return FALSE; ++ } ++ ++ return TRUE; ++} ++ ++/* Look through the relocs for a section during the first phase, and ++ allocate space in the global offset table or procedure linkage ++ table. */ ++ ++static bfd_boolean ++loongarch_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, ++ asection *sec, const Elf_Internal_Rela *relocs) ++{ ++ struct loongarch_elf_link_hash_table *htab; ++ Elf_Internal_Shdr *symtab_hdr; ++ struct elf_link_hash_entry **sym_hashes; ++ const Elf_Internal_Rela *rel; ++ asection *sreloc = NULL; ++ ++ if (bfd_link_relocatable (info)) ++ return TRUE; ++ ++ htab = loongarch_elf_hash_table (info); ++ symtab_hdr = &elf_tdata (abfd)->symtab_hdr; ++ sym_hashes = elf_sym_hashes (abfd); ++ ++ if (htab->elf.dynobj == NULL) ++ htab->elf.dynobj = abfd; ++ ++ for (rel = relocs; rel < relocs + sec->reloc_count; rel++) ++ { ++ unsigned int r_type; ++ unsigned int r_symndx; ++ struct elf_link_hash_entry *h; ++ Elf_Internal_Sym *isym = NULL; ++ ++ r_symndx = ELFNN_R_SYM (rel->r_info); ++ r_type = ELFNN_R_TYPE (rel->r_info); ++ ++ if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) ++ { ++ _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx); ++ return FALSE; ++ } ++ ++ if (r_symndx < symtab_hdr->sh_info) ++ { ++ /* A local symbol. */ ++ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd, r_symndx); ++ if (isym == NULL) ++ return FALSE; ++ ++ if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) ++ { ++ h = elfNN_loongarch_get_local_sym_hash (htab, abfd, rel, TRUE); ++ if (h == NULL) ++ return FALSE; ++ ++ h->type = STT_GNU_IFUNC; ++ h->ref_regular = 1; ++ } ++ else ++ h = NULL; ++ } ++ else ++ { ++ h = sym_hashes[r_symndx - symtab_hdr->sh_info]; ++ while (h->root.type == bfd_link_hash_indirect ++ || h->root.type == bfd_link_hash_warning) ++ h = (struct elf_link_hash_entry *) h->root.u.i.link; ++ } ++ ++ /* It is referenced by a non-shared object. */ ++ if (h != NULL) ++ h->ref_regular = 1; ++ ++ if (h && h->type == STT_GNU_IFUNC) ++ { ++ if (htab->elf.dynobj == NULL) ++ htab->elf.dynobj = abfd; ++ ++ /* Create 'irelifunc' in PIC object. */ ++ if (bfd_link_pic (info) ++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info)) ++ return FALSE; ++ /* If '.plt' not represent, create '.iplt' to deal with ifunc. */ ++ else if (!htab->elf.splt ++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info)) ++ return FALSE; ++ /* Create the ifunc sections, iplt and ipltgot, for static ++ executables. */ ++ if ((r_type == R_LARCH_64 || r_type == R_LARCH_32) ++ && !_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info)) ++ return FALSE; ++ ++ if (h->plt.refcount < 0) ++ h->plt.refcount = 0; ++ h->plt.refcount++; ++ h->needs_plt = 1; ++ ++ elf_tdata (info->output_bfd)->has_gnu_osabi |= elf_gnu_osabi_ifunc; ++ } ++ ++ int need_dynreloc = 0; ++ int only_need_pcrel = 0; ++ ++ switch (r_type) ++ { ++ case R_LARCH_GOT_PC_HI20: ++ case R_LARCH_GOT_HI20: ++ case R_LARCH_SOP_PUSH_GPREL: ++ /* For la.global. */ ++ if (h) ++ h->pointer_equality_needed = 1; ++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h, ++ r_symndx, ++ GOT_NORMAL)) ++ return FALSE; ++ break; ++ ++ case R_LARCH_TLS_LD_PC_HI20: ++ case R_LARCH_TLS_LD_HI20: ++ case R_LARCH_TLS_GD_PC_HI20: ++ case R_LARCH_TLS_GD_HI20: ++ case R_LARCH_SOP_PUSH_TLS_GD: ++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h, ++ r_symndx, ++ GOT_TLS_GD)) ++ return FALSE; ++ break; ++ ++ case R_LARCH_TLS_IE_PC_HI20: ++ case R_LARCH_TLS_IE_HI20: ++ case R_LARCH_SOP_PUSH_TLS_GOT: ++ if (bfd_link_pic (info)) ++ /* May fail for lazy-bind. */ ++ info->flags |= DF_STATIC_TLS; ++ ++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h, ++ r_symndx, ++ GOT_TLS_IE)) ++ return FALSE; ++ break; ++ ++ case R_LARCH_TLS_LE_HI20: ++ case R_LARCH_SOP_PUSH_TLS_TPREL: ++ if (!bfd_link_executable (info)) ++ return FALSE; ++ ++ info->flags |= DF_STATIC_TLS; ++ ++ if (!loongarch_elf_record_tls_and_got_reference (abfd, info, h, ++ r_symndx, ++ GOT_TLS_LE)) ++ return FALSE; ++ break; ++ ++ case R_LARCH_ABS_HI20: ++ case R_LARCH_SOP_PUSH_ABSOLUTE: ++ if (h != NULL) ++ /* If this reloc is in a read-only section, we might ++ need a copy reloc. We can't check reliably at this ++ stage whether the section is read-only, as input ++ sections have not yet been mapped to output sections. ++ Tentatively set the flag for now, and correct in ++ adjust_dynamic_symbol. */ ++ h->non_got_ref = 1; ++ break; ++ ++ case R_LARCH_PCALA_HI20: ++ if (h != NULL) ++ { ++ h->non_got_ref = 1; ++ h->pointer_equality_needed = 1; ++ } ++ ++ break; ++ ++ case R_LARCH_B21: ++ case R_LARCH_B16: ++ case R_LARCH_B26: ++ if (h != NULL) ++ { ++ h->needs_plt = 1; ++ if (!bfd_link_pic (info)) ++ h->non_got_ref = 1; ++ ++ /* We try to create PLT stub for all non-local function. */ ++ if (h->plt.refcount < 0) ++ h->plt.refcount = 0; ++ h->plt.refcount++; ++ } ++ ++ break; ++ ++ case R_LARCH_SOP_PUSH_PCREL: ++ if (h != NULL) ++ { ++ if (!bfd_link_pic (info)) ++ h->non_got_ref = 1; ++ ++ /* We try to create PLT stub for all non-local function. */ ++ if (h->plt.refcount < 0) ++ h->plt.refcount = 0; ++ h->plt.refcount++; ++ h->pointer_equality_needed = 1; ++ } ++ ++ break; ++ ++ case R_LARCH_SOP_PUSH_PLT_PCREL: ++ /* This symbol requires a procedure linkage table entry. We ++ actually build the entry in adjust_dynamic_symbol, ++ because this might be a case of linking PIC code without ++ linking in any dynamic objects, in which case we don't ++ need to generate a procedure linkage table after all. */ ++ if (h != NULL) ++ { ++ h->needs_plt = 1; ++ if (h->plt.refcount < 0) ++ h->plt.refcount = 0; ++ h->plt.refcount++; ++ } ++ break; ++ ++ case R_LARCH_TLS_DTPREL32: ++ case R_LARCH_TLS_DTPREL64: ++ need_dynreloc = 1; ++ only_need_pcrel = 1; ++ break; ++ ++ case R_LARCH_JUMP_SLOT: ++ case R_LARCH_32: ++ case R_LARCH_64: ++ ++ need_dynreloc = 1; ++ ++ /* If resolved symbol is defined in this object, ++ 1. Under pie, the symbol is known. We convert it ++ into R_LARCH_RELATIVE and need load-addr still. ++ 2. Under pde, the symbol is known and we can discard R_LARCH_NN. ++ 3. Under dll, R_LARCH_NN can't be changed normally, since ++ its defination could be covered by the one in executable. ++ For symbolic, we convert it into R_LARCH_RELATIVE. ++ Thus, only under pde, it needs pcrel only. We discard it. */ ++ only_need_pcrel = bfd_link_pde (info); ++ ++ if (h != NULL ++ && (!bfd_link_pic (info) ++ || h->type == STT_GNU_IFUNC)) ++ { ++ /* This reloc might not bind locally. */ ++ h->non_got_ref = 1; ++ h->pointer_equality_needed = 1; ++ ++ if (!h->def_regular ++ || (sec->flags & (SEC_CODE | SEC_READONLY)) != 0) ++ { ++ /* We may need a .plt entry if the symbol is a function ++ defined in a shared lib or is a function referenced ++ from the code or read-only section. */ ++ h->plt.refcount += 1; ++ } ++ } ++ break; ++ ++ case R_LARCH_GNU_VTINHERIT: ++ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) ++ return FALSE; ++ break; ++ ++ case R_LARCH_GNU_VTENTRY: ++ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) ++ return FALSE; ++ break; ++ ++ default: ++ break; ++ } ++ ++ /* Record some info for sizing and allocating dynamic entry. */ ++ if (need_dynreloc && (sec->flags & SEC_ALLOC)) ++ { ++ /* When creating a shared object, we must copy these ++ relocs into the output file. We create a reloc ++ section in dynobj and make room for the reloc. */ ++ struct elf_dyn_relocs *p; ++ struct elf_dyn_relocs **head; ++ ++ if (sreloc == NULL) ++ { ++ sreloc ++ = _bfd_elf_make_dynamic_reloc_section (sec, htab->elf.dynobj, ++ LARCH_ELF_LOG_WORD_BYTES, ++ abfd, /*rela?*/ TRUE); ++ if (sreloc == NULL) ++ return FALSE; ++ } ++ ++ /* If this is a global symbol, we count the number of ++ relocations we need for this symbol. */ ++ if (h != NULL) ++ head = &h->dyn_relocs; ++ else ++ { ++ /* Track dynamic relocs needed for local syms too. ++ We really need local syms available to do this ++ easily. Oh well. */ ++ ++ asection *s; ++ void *vpp; ++ ++ s = bfd_section_from_elf_index (abfd, isym->st_shndx); ++ if (s == NULL) ++ s = sec; ++ ++ vpp = &elf_section_data (s)->local_dynrel; ++ head = (struct elf_dyn_relocs **) vpp; ++ } ++ ++ p = *head; ++ if (p == NULL || p->sec != sec) ++ { ++ bfd_size_type amt = sizeof *p; ++ p = (struct elf_dyn_relocs *) bfd_alloc (htab->elf.dynobj, amt); ++ if (p == NULL) ++ return FALSE; ++ p->next = *head; ++ *head = p; ++ p->sec = sec; ++ p->count = 0; ++ p->pc_count = 0; ++ } ++ ++ p->count++; ++ p->pc_count += only_need_pcrel; ++ } ++ } ++ ++ return TRUE; ++} ++ ++/* Find dynamic relocs for H that apply to read-only sections. */ ++ ++static asection * ++readonly_dynrelocs (struct elf_link_hash_entry *h) ++{ ++ struct elf_dyn_relocs *p; ++ ++ for (p = h->dyn_relocs; p != NULL; p = p->next) ++ { ++ asection *s = p->sec->output_section; ++ ++ if (s != NULL && (s->flags & SEC_READONLY) != 0) ++ return p->sec; ++ } ++ return NULL; ++} ++ ++/* Adjust a symbol defined by a dynamic object and referenced by a ++ regular object. The current definition is in some section of the ++ dynamic object, but we're not including those sections. We have to ++ change the definition to something the rest of the link can ++ understand. */ ++static bfd_boolean ++loongarch_elf_adjust_dynamic_symbol (struct bfd_link_info *info, ++ struct elf_link_hash_entry *h) ++{ ++ struct loongarch_elf_link_hash_table *htab; ++ bfd *dynobj; ++ ++ htab = loongarch_elf_hash_table (info); ++ BFD_ASSERT (htab != NULL); ++ ++ dynobj = htab->elf.dynobj; ++ ++ /* Make sure we know what is going on here. */ ++ BFD_ASSERT (dynobj != NULL ++ && (h->needs_plt || h->type == STT_GNU_IFUNC || h->is_weakalias ++ || (h->def_dynamic && h->ref_regular && !h->def_regular))); ++ ++ /* If this is a function, put it in the procedure linkage table. We ++ will fill in the contents of the procedure linkage table later ++ (although we could actually do it here). */ ++ if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt) ++ { ++ if (h->plt.refcount < 0 ++ || (h->type != STT_GNU_IFUNC ++ && (SYMBOL_REFERENCES_LOCAL (info, h) ++ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT ++ && h->root.type == bfd_link_hash_undefweak)))) ++ { ++ /* This case can occur if we saw a R_LARCH_SOP_PUSH_PLT_PCREL reloc ++ in an input file, but the symbol was never referred to by a ++ dynamic object, or if all references were garbage collected. ++ In such a case, we don't actually need to build a PLT entry. */ ++ h->plt.offset = MINUS_ONE; ++ h->needs_plt = 0; ++ } ++ else ++ h->needs_plt = 1; ++ ++ return TRUE; ++ } ++ else ++ h->plt.offset = MINUS_ONE; ++ ++ /* If this is a weak symbol, and there is a real definition, the ++ processor independent code will have arranged for us to see the ++ real definition first, and we can just use the same value. */ ++ if (h->is_weakalias) ++ { ++ struct elf_link_hash_entry *def = weakdef (h); ++ BFD_ASSERT (def->root.type == bfd_link_hash_defined); ++ h->root.u.def.section = def->root.u.def.section; ++ h->root.u.def.value = def->root.u.def.value; ++ return TRUE; ++ } ++ ++ /* R_LARCH_COPY is not adept glibc, not to generate. */ ++ /* Can not print anything, because make check ld. */ ++ return TRUE; ++} ++ ++/* Allocate space in .plt, .got and associated reloc sections for ++ dynamic relocs. */ ++ ++static bfd_boolean ++allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) ++{ ++ struct bfd_link_info *info; ++ struct loongarch_elf_link_hash_table *htab; ++ struct elf_dyn_relocs *p; ++ ++ if (h->root.type == bfd_link_hash_indirect) ++ return TRUE; ++ ++ if (h->type == STT_GNU_IFUNC ++ && h->def_regular) ++ return TRUE; ++ ++ info = (struct bfd_link_info *) inf; ++ htab = loongarch_elf_hash_table (info); ++ bfd_boolean dyn = htab->elf.dynamic_sections_created; ++ BFD_ASSERT (htab != NULL); ++ ++ do ++ { ++ asection *plt, *gotplt, *relplt; ++ ++ if (!h->needs_plt) ++ break; ++ ++ h->needs_plt = 0; ++ ++ if (htab->elf.splt) ++ { ++ if (h->dynindx == -1 && !h->forced_local && dyn ++ && h->root.type == bfd_link_hash_undefweak) ++ { ++ if (!bfd_elf_link_record_dynamic_symbol (info, h)) ++ return FALSE; ++ } ++ ++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h) ++ && h->type != STT_GNU_IFUNC) ++ break; ++ ++ plt = htab->elf.splt; ++ gotplt = htab->elf.sgotplt; ++ relplt = htab->elf.srelplt; ++ } ++ else if (htab->elf.iplt) ++ { ++ /* .iplt only for IFUNC. */ ++ if (h->type != STT_GNU_IFUNC) ++ break; ++ ++ plt = htab->elf.iplt; ++ gotplt = htab->elf.igotplt; ++ relplt = htab->elf.irelplt; ++ } ++ else ++ break; ++ ++ if (plt->size == 0) ++ plt->size = PLT_HEADER_SIZE; ++ ++ h->plt.offset = plt->size; ++ plt->size += PLT_ENTRY_SIZE; ++ gotplt->size += GOT_ENTRY_SIZE; ++ relplt->size += sizeof (ElfNN_External_Rela); ++ ++ /* If this symbol is not defined in a regular file, and we are ++ not generating a shared library, then set the symbol to this ++ location in the .plt. This is required to make function ++ pointers compare as equal between the normal executable and ++ the shared library. */ ++ if (!bfd_link_pic (info) ++ && !h->def_regular) ++ { ++ h->root.u.def.section = plt; ++ h->root.u.def.value = h->plt.offset; ++ } ++ ++ h->needs_plt = 1; ++ } ++ while (0); ++ ++ if (!h->needs_plt) ++ h->plt.offset = MINUS_ONE; ++ ++ if (0 < h->got.refcount) ++ { ++ asection *s; ++ int tls_type = loongarch_elf_hash_entry (h)->tls_type; ++ ++ /* Make sure this symbol is output as a dynamic symbol. ++ Undefined weak syms won't yet be marked as dynamic. */ ++ if (h->dynindx == -1 && !h->forced_local && dyn ++ && h->root.type == bfd_link_hash_undefweak) ++ { ++ if (!bfd_elf_link_record_dynamic_symbol (info, h)) ++ return FALSE; ++ } ++ ++ s = htab->elf.sgot; ++ h->got.offset = s->size; ++ if (tls_type & (GOT_TLS_GD | GOT_TLS_IE)) ++ { ++ /* TLS_GD needs two dynamic relocs and two GOT slots. */ ++ if (tls_type & GOT_TLS_GD) ++ { ++ s->size += 2 * GOT_ENTRY_SIZE; ++ if (bfd_link_executable (info)) ++ { ++ /* Link exe and not defined local. */ ++ if (!SYMBOL_REFERENCES_LOCAL (info, h)) ++ htab->elf.srelgot->size += 2 * sizeof (ElfNN_External_Rela); ++ } ++ else ++ { ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela); ++ else ++ htab->elf.srelgot->size += 2 * sizeof (ElfNN_External_Rela); ++ } ++ } ++ ++ /* TLS_IE needs one dynamic reloc and one GOT slot. */ ++ if (tls_type & GOT_TLS_IE) ++ { ++ s->size += GOT_ENTRY_SIZE; ++ ++ if (bfd_link_executable (info)) ++ { ++ /* Link exe and not defined local. */ ++ if (!SYMBOL_REFERENCES_LOCAL (info, h)) ++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela); ++ } ++ else ++ { ++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela); ++ } ++ } ++ } ++ else ++ { ++ s->size += GOT_ENTRY_SIZE; ++ if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT ++ || h->root.type != bfd_link_hash_undefweak) ++ && (bfd_link_pic (info) ++ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), ++ h)) ++ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) ++ /* Undefined weak symbol in static PIE resolves to 0 without ++ any dynamic relocations. */ ++ htab->elf.srelgot->size += sizeof (ElfNN_External_Rela); ++ } ++ } ++ else ++ h->got.offset = MINUS_ONE; ++ ++ if (h->dyn_relocs == NULL) ++ return TRUE; ++ ++ /* Extra dynamic relocate, ++ * R_LARCH_64 ++ * R_LARCH_TLS_DTPRELNN ++ * R_LARCH_JUMP_SLOT ++ * R_LARCH_NN. */ ++ ++ if (SYMBOL_CALLS_LOCAL (info, h)) ++ { ++ struct elf_dyn_relocs **pp; ++ ++ for (pp = &h->dyn_relocs; (p = *pp) != NULL;) ++ { ++ p->count -= p->pc_count; ++ p->pc_count = 0; ++ if (p->count == 0) ++ *pp = p->next; ++ else ++ pp = &p->next; ++ } ++ } ++ ++ if (h->root.type == bfd_link_hash_undefweak) ++ { ++ if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h) ++ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT ++ || (!bfd_link_pic (info) && h->non_got_ref)) ++ h->dyn_relocs = NULL; ++ else if (h->dynindx == -1 && !h->forced_local) ++ { ++ /* Make sure this symbol is output as a dynamic symbol. ++ Undefined weak syms won't yet be marked as dynamic. */ ++ if (!bfd_elf_link_record_dynamic_symbol (info, h)) ++ return FALSE; ++ ++ if (h->dynindx == -1) ++ h->dyn_relocs = NULL; ++ } ++ } ++ ++ for (p = h->dyn_relocs; p != NULL; p = p->next) ++ { ++ asection *sreloc = elf_section_data (p->sec)->sreloc; ++ sreloc->size += p->count * sizeof (ElfNN_External_Rela); ++ } ++ ++ return TRUE; ++} ++ ++/* A modified version of _bfd_elf_allocate_ifunc_dyn_relocs. ++ For local def and ref ifunc, ++ dynamic relocations are stored in ++ 1. rela.srelgot section in dynamic object (dll or exec). ++ 2. rela.irelplt section in static executable. ++ Unlike _bfd_elf_allocate_ifunc_dyn_relocs, rela.srelgot is used ++ instead of rela.srelplt. Glibc ELF loader will not support ++ R_LARCH_IRELATIVE relocation in rela.plt. */ ++ ++static bfd_boolean ++local_allocate_ifunc_dyn_relocs (struct bfd_link_info *info, ++ struct elf_link_hash_entry *h, ++ struct elf_dyn_relocs **head, ++ unsigned int plt_entry_size, ++ unsigned int plt_header_size, ++ unsigned int got_entry_size, ++ bfd_boolean avoid_plt) ++{ ++ asection *plt, *gotplt, *relplt; ++ struct elf_dyn_relocs *p; ++ unsigned int sizeof_reloc; ++ const struct elf_backend_data *bed; ++ struct elf_link_hash_table *htab; ++ /* If AVOID_PLT is TRUE, don't use PLT if possible. */ ++ bfd_boolean use_plt = !avoid_plt || h->plt.refcount > 0; ++ bfd_boolean need_dynreloc = !use_plt || bfd_link_pic (info); ++ ++ /* When a PIC object references a STT_GNU_IFUNC symbol defined ++ in executable or it isn't referenced via PLT, the address of ++ the resolved function may be used. But in non-PIC executable, ++ the address of its plt slot may be used. Pointer equality may ++ not work correctly. PIE or non-PLT reference should be used if ++ pointer equality is required here. ++ ++ If STT_GNU_IFUNC symbol is defined in position-dependent executable, ++ backend should change it to the normal function and set its address ++ to its PLT entry which should be resolved by R_*_IRELATIVE at ++ run-time. All external references should be resolved to its PLT in ++ executable. */ ++ if (!need_dynreloc ++ && !(bfd_link_pde (info) && h->def_regular) ++ && (h->dynindx != -1 ++ || info->export_dynamic) ++ && h->pointer_equality_needed) ++ { ++ info->callbacks->einfo ++ /* xgettext:c-format. */ ++ (_("%F%P: dynamic STT_GNU_IFUNC symbol `%s' with pointer " ++ "equality in `%pB' can not be used when making an " ++ "executable; recompile with -fPIE and relink with -pie\n"), ++ h->root.root.string, ++ h->root.u.def.section->owner); ++ bfd_set_error (bfd_error_bad_value); ++ return FALSE; ++ } ++ ++ htab = elf_hash_table (info); ++ ++ /* When the symbol is marked with regular reference, if PLT isn't used ++ or we are building a PIC object, we must keep dynamic relocation ++ if there is non-GOT reference and use PLT if there is PC-relative ++ reference. */ ++ if (need_dynreloc && h->ref_regular) ++ { ++ bfd_boolean keep = FALSE; ++ for (p = *head; p != NULL; p = p->next) ++ if (p->count) ++ { ++ h->non_got_ref = 1; ++ /* Need dynamic relocations for non-GOT reference. */ ++ keep = TRUE; ++ if (p->pc_count) ++ { ++ /* Must use PLT for PC-relative reference. */ ++ use_plt = TRUE; ++ need_dynreloc = bfd_link_pic (info); ++ break; ++ } ++ } ++ if (keep) ++ goto keep; ++ } ++ ++ /* Support garbage collection against STT_GNU_IFUNC symbols. */ ++ if (h->plt.refcount <= 0 && h->got.refcount <= 0) ++ { ++ h->got = htab->init_got_offset; ++ h->plt = htab->init_plt_offset; ++ *head = NULL; ++ return TRUE; ++ } ++ ++ /* Return and discard space for dynamic relocations against it if ++ it is never referenced. */ ++ if (!h->ref_regular) ++ { ++ if (h->plt.refcount > 0 ++ || h->got.refcount > 0) ++ abort (); ++ h->got = htab->init_got_offset; ++ h->plt = htab->init_plt_offset; ++ *head = NULL; ++ return TRUE; ++ } ++ ++ keep: ++ bed = get_elf_backend_data (info->output_bfd); ++ if (bed->rela_plts_and_copies_p) ++ sizeof_reloc = bed->s->sizeof_rela; ++ else ++ sizeof_reloc = bed->s->sizeof_rel; ++ ++ /* When building a static executable, use iplt, igot.plt and ++ rela.iplt sections for STT_GNU_IFUNC symbols. */ ++ if (htab->splt != NULL) ++ { ++ plt = htab->splt; ++ gotplt = htab->sgotplt; ++ /* Change dynamic info of ifunc gotplt from srelplt to srelgot. */ ++ relplt = htab->srelgot; ++ ++ /* If this is the first plt entry and PLT is used, make room for ++ the special first entry. */ ++ if (plt->size == 0 && use_plt) ++ plt->size += plt_header_size; ++ } ++ else ++ { ++ plt = htab->iplt; ++ gotplt = htab->igotplt; ++ relplt = htab->irelplt; ++ } ++ ++ if (use_plt) ++ { ++ /* Don't update value of STT_GNU_IFUNC symbol to PLT. We need ++ the original value for R_*_IRELATIVE. */ ++ h->plt.offset = plt->size; ++ ++ /* Make room for this entry in the plt/iplt section. */ ++ plt->size += plt_entry_size; ++ ++ /* We also need to make an entry in the got.plt/got.iplt section, ++ which will be placed in the got section by the linker script. */ ++ gotplt->size += got_entry_size; ++ } ++ ++ /* We also need to make an entry in the rela.plt/.rela.iplt ++ section for GOTPLT relocation if PLT is used. */ ++ if (use_plt) ++ { ++ relplt->size += sizeof_reloc; ++ relplt->reloc_count++; ++ } ++ ++ /* We need dynamic relocation for STT_GNU_IFUNC symbol only when ++ there is a non-GOT reference in a PIC object or PLT isn't used. */ ++ if (!need_dynreloc || !h->non_got_ref) ++ *head = NULL; ++ ++ /* Finally, allocate space. */ ++ p = *head; ++ if (p != NULL) ++ { ++ bfd_size_type count = 0; ++ do ++ { ++ count += p->count; ++ p = p->next; ++ } ++ while (p != NULL); ++ ++ htab->ifunc_resolvers = count != 0; ++ ++ /* Dynamic relocations are stored in ++ 1. rela.srelgot section in PIC object. ++ 2. rela.srelgot section in dynamic executable. ++ 3. rela.irelplt section in static executable. */ ++ if (htab->splt != NULL) ++ htab->srelgot->size += count * sizeof_reloc; ++ else ++ { ++ relplt->size += count * sizeof_reloc; ++ relplt->reloc_count += count; ++ } ++ } ++ ++ /* For STT_GNU_IFUNC symbol, got.plt has the real function address ++ and got has the PLT entry adddress. We will load the GOT entry ++ with the PLT entry in finish_dynamic_symbol if it is used. For ++ branch, it uses got.plt. For symbol value, if PLT is used, ++ 1. Use got.plt in a PIC object if it is forced local or not ++ dynamic. ++ 2. Use got.plt in a non-PIC object if pointer equality isn't ++ needed. ++ 3. Use got.plt in PIE. ++ 4. Use got.plt if got isn't used. ++ 5. Otherwise use got so that it can be shared among different ++ objects at run-time. ++ If PLT isn't used, always use got for symbol value. ++ We only need to relocate got entry in PIC object or in dynamic ++ executable without PLT. */ ++ if (use_plt ++ && (h->got.refcount <= 0 ++ || (bfd_link_pic (info) ++ && (h->dynindx == -1 ++ || h->forced_local)) ++ || ( ++ !h->pointer_equality_needed) ++ || htab->sgot == NULL)) ++ { ++ /* Use got.plt. */ ++ h->got.offset = (bfd_vma) -1; ++ } ++ else ++ { ++ if (!use_plt) ++ { ++ /* PLT isn't used. */ ++ h->plt.offset = (bfd_vma) -1; ++ } ++ if (h->got.refcount <= 0) ++ { ++ /* GOT isn't need when there are only relocations for static ++ pointers. */ ++ h->got.offset = (bfd_vma) -1; ++ } ++ else ++ { ++ h->got.offset = htab->sgot->size; ++ htab->sgot->size += got_entry_size; ++ /* Need to relocate the GOT entry in a PIC object or PLT isn't ++ used. Otherwise, the GOT entry will be filled with the PLT ++ entry and dynamic GOT relocation isn't needed. */ ++ if (need_dynreloc) ++ { ++ /* For non-static executable, dynamic GOT relocation is in ++ rela.got section, but for static executable, it is ++ in rela.iplt section. */ ++ if (htab->splt != NULL) ++ htab->srelgot->size += sizeof_reloc; ++ else ++ { ++ relplt->size += sizeof_reloc; ++ relplt->reloc_count++; ++ } ++ } ++ } ++ } ++ ++ return TRUE; ++} ++ ++/* Allocate space in .plt, .got and associated reloc sections for ++ ifunc dynamic relocs. */ ++ ++static bfd_boolean ++elfNN_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h, void *inf) ++{ ++ struct bfd_link_info *info; ++ /* An example of a bfd_link_hash_indirect symbol is versioned ++ symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) ++ -> __gxx_personality_v0(bfd_link_hash_defined) ++ ++ There is no need to process bfd_link_hash_indirect symbols here ++ because we will also be presented with the concrete instance of ++ the symbol and loongarch_elf_copy_indirect_symbol () will have been ++ called to copy all relevant data from the generic to the concrete ++ symbol instance. */ ++ if (h->root.type == bfd_link_hash_indirect) ++ return TRUE; ++ ++ if (h->root.type == bfd_link_hash_warning) ++ h = (struct elf_link_hash_entry *) h->root.u.i.link; ++ ++ info = (struct bfd_link_info *) inf; ++ ++ /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it ++ here if it is defined and referenced in a non-shared object. */ ++ if (h->type == STT_GNU_IFUNC && h->def_regular) ++ { ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ return local_allocate_ifunc_dyn_relocs (info, h, ++ &h->dyn_relocs, ++ PLT_ENTRY_SIZE, ++ PLT_HEADER_SIZE, ++ GOT_ENTRY_SIZE, ++ FALSE); ++ else ++ return _bfd_elf_allocate_ifunc_dyn_relocs (info, h, ++ &h->dyn_relocs, ++ PLT_ENTRY_SIZE, ++ PLT_HEADER_SIZE, ++ GOT_ENTRY_SIZE, ++ FALSE); ++ } ++ ++ return TRUE; ++} ++ ++/* Allocate space in .plt, .got and associated reloc sections for ++ ifunc dynamic relocs. */ ++ ++static bfd_boolean ++elfNN_allocate_local_ifunc_dynrelocs (void **slot, void *inf) ++{ ++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) *slot; ++ ++ if (h->type != STT_GNU_IFUNC ++ || !h->def_regular ++ || !h->ref_regular ++ || !h->forced_local ++ || h->root.type != bfd_link_hash_defined) ++ abort (); ++ ++ return elfNN_allocate_ifunc_dynrelocs (h, inf); ++} ++ ++/* Set DF_TEXTREL if we find any dynamic relocs that apply to ++ read-only sections. */ ++ ++static bfd_boolean ++maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) ++{ ++ asection *sec; ++ ++ if (h->root.type == bfd_link_hash_indirect) ++ return TRUE; ++ ++ sec = readonly_dynrelocs (h); ++ if (sec != NULL) ++ { ++ struct bfd_link_info *info = (struct bfd_link_info *) info_p; ++ ++ info->flags |= DF_TEXTREL; ++ info->callbacks->minfo (_("%pB: dynamic relocation against `%pT' in " ++ "read-only section `%pA'\n"), ++ sec->owner, h->root.root.string, sec); ++ ++ /* Not an error, just cut short the traversal. */ ++ return FALSE; ++ } ++ return TRUE; ++} ++ ++static bfd_boolean ++loongarch_elf_size_dynamic_sections (bfd *output_bfd, ++ struct bfd_link_info *info) ++{ ++ struct loongarch_elf_link_hash_table *htab; ++ bfd *dynobj; ++ asection *s; ++ bfd *ibfd; ++ ++ htab = loongarch_elf_hash_table (info); ++ BFD_ASSERT (htab != NULL); ++ dynobj = htab->elf.dynobj; ++ BFD_ASSERT (dynobj != NULL); ++ ++ if (htab->elf.dynamic_sections_created) ++ { ++ /* Set the contents of the .interp section to the interpreter. */ ++ if (bfd_link_executable (info) && !info->nointerp) ++ { ++ const char *interpreter; ++ flagword flags = elf_elfheader (output_bfd)->e_flags; ++ s = bfd_get_linker_section (dynobj, ".interp"); ++ BFD_ASSERT (s != NULL); ++ if (EF_LOONGARCH_IS_ILP32 (flags)) ++ interpreter = "/lib32/ld.so.1"; ++ else if (EF_LOONGARCH_IS_LP64 (flags)) ++ interpreter = "/lib64/ld.so.1"; ++ else ++ interpreter = "/lib/ld.so.1"; ++ s->contents = (unsigned char *) interpreter; ++ s->size = strlen (interpreter) + 1; ++ } ++ } ++ ++ /* Set up .got offsets for local syms, and space for local dynamic ++ relocs. */ ++ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) ++ { ++ bfd_signed_vma *local_got; ++ bfd_signed_vma *end_local_got; ++ char *local_tls_type; ++ bfd_size_type locsymcount; ++ Elf_Internal_Shdr *symtab_hdr; ++ asection *srel; ++ ++ if (!is_loongarch_elf (ibfd)) ++ continue; ++ ++ for (s = ibfd->sections; s != NULL; s = s->next) ++ { ++ struct elf_dyn_relocs *p; ++ ++ for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) ++ { ++ p->count -= p->pc_count; ++ if (!bfd_is_abs_section (p->sec) ++ && bfd_is_abs_section (p->sec->output_section)) ++ { ++ /* Input section has been discarded, either because ++ it is a copy of a linkonce section or due to ++ linker script /DISCARD/, so we'll be discarding ++ the relocs too. */ ++ } ++ else if (0 < p->count) ++ { ++ srel = elf_section_data (p->sec)->sreloc; ++ srel->size += p->count * sizeof (ElfNN_External_Rela); ++ if ((p->sec->output_section->flags & SEC_READONLY) != 0) ++ info->flags |= DF_TEXTREL; ++ } ++ } ++ } ++ ++ local_got = elf_local_got_refcounts (ibfd); ++ if (!local_got) ++ continue; ++ ++ symtab_hdr = &elf_symtab_hdr (ibfd); ++ locsymcount = symtab_hdr->sh_info; ++ end_local_got = local_got + locsymcount; ++ local_tls_type = _bfd_loongarch_elf_local_got_tls_type (ibfd); ++ s = htab->elf.sgot; ++ srel = htab->elf.srelgot; ++ for (; local_got < end_local_got; ++local_got, ++local_tls_type) ++ { ++ if (0 < *local_got) ++ { ++ *local_got = s->size; ++ ++ /* TLS gd use two got. */ ++ if (*local_tls_type & GOT_TLS_GD) ++ s->size += GOT_ENTRY_SIZE * 2; ++ else ++ /* Normal got, tls ie/ld use one got. */ ++ s->size += GOT_ENTRY_SIZE; ++ ++ if (bfd_link_executable (info) ++ && (*local_tls_type & (GOT_TLS_GD| GOT_TLS_IE))) ++ ;/* Do nothing. */ ++ else ++ { ++ srel->size += sizeof (ElfNN_External_Rela); ++ } ++ } ++ else ++ *local_got = MINUS_ONE; ++ } ++ } ++ ++ /* Allocate global sym .plt and .got entries, and space for global ++ sym dynamic relocs. */ ++ elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); ++ ++ /* Allocate global ifunc sym .plt and .got entries, and space for global ++ ifunc sym dynamic relocs. */ ++ elf_link_hash_traverse (&htab->elf, elfNN_allocate_ifunc_dynrelocs, info); ++ ++ /* Allocate .plt and .got entries, and space for local ifunc symbols. */ ++ htab_traverse (htab->loc_hash_table, ++ (void *) elfNN_allocate_local_ifunc_dynrelocs, info); ++ ++ /* Don't allocate .got.plt section if there are no PLT. */ ++ if (htab->elf.sgotplt && htab->elf.sgotplt->size == GOTPLT_HEADER_SIZE ++ && (htab->elf.splt == NULL || htab->elf.splt->size == 0)) ++ htab->elf.sgotplt->size = 0; ++ ++ /* The check_relocs and adjust_dynamic_symbol entry points have ++ determined the sizes of the various dynamic sections. Allocate ++ memory for them. */ ++ for (s = dynobj->sections; s != NULL; s = s->next) ++ { ++ if ((s->flags & SEC_LINKER_CREATED) == 0) ++ continue; ++ ++ if (s == htab->elf.splt || s == htab->elf.iplt || s == htab->elf.sgot ++ || s == htab->elf.sgotplt || s == htab->elf.igotplt ++ || s == htab->elf.sdynbss || s == htab->elf.sdynrelro) ++ { ++ /* Strip this section if we don't need it; see the ++ comment below. */ ++ } ++ else if (strncmp (s->name, ".rela", 5) == 0) ++ { ++ if (s->size != 0) ++ { ++ /* We use the reloc_count field as a counter if we need ++ to copy relocs into the output file. */ ++ s->reloc_count = 0; ++ } ++ } ++ else ++ { ++ /* It's not one of our sections. */ ++ continue; ++ } ++ ++ if (s->size == 0) ++ { ++ /* If we don't need this section, strip it from the ++ output file. This is mostly to handle .rela.bss and ++ .rela.plt. We must create both sections in ++ create_dynamic_sections, because they must be created ++ before the linker maps input sections to output ++ sections. The linker does that before ++ adjust_dynamic_symbol is called, and it is that ++ function which decides whether anything needs to go ++ into these sections. */ ++ s->flags |= SEC_EXCLUDE; ++ continue; ++ } ++ ++ if ((s->flags & SEC_HAS_CONTENTS) == 0) ++ continue; ++ ++ /* Allocate memory for the section contents. Zero the memory ++ for the benefit of .rela.plt, which has 4 unused entries ++ at the beginning, and we don't want garbage. */ ++ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); ++ if (s->contents == NULL) ++ return FALSE; ++ } ++ ++ if (elf_hash_table (info)->dynamic_sections_created) ++ { ++ /* Add some entries to the .dynamic section. We fill in the ++ values later, in loongarch_elf_finish_dynamic_sections, but we ++ must add the entries now so that we get the correct size for ++ the .dynamic section. The DT_DEBUG entry is filled in by the ++ dynamic linker and used by the debugger. */ ++#define add_dynamic_entry(TAG, VAL) _bfd_elf_add_dynamic_entry (info, TAG, VAL) ++ ++ if (bfd_link_executable (info)) ++ { ++ if (!add_dynamic_entry (DT_DEBUG, 0)) ++ return FALSE; ++ } ++ ++ if (htab->elf.srelplt->size != 0) ++ { ++ if (!add_dynamic_entry (DT_PLTGOT, 0) ++ || !add_dynamic_entry (DT_PLTRELSZ, 0) ++ || !add_dynamic_entry (DT_PLTREL, DT_RELA) ++ || !add_dynamic_entry (DT_JMPREL, 0)) ++ return FALSE; ++ } ++ ++ if (!add_dynamic_entry (DT_RELA, 0) ++ || !add_dynamic_entry (DT_RELASZ, 0) ++ || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela))) ++ return FALSE; ++ ++ /* If any dynamic relocs apply to a read-only section, ++ then we need a DT_TEXTREL entry. */ ++ if ((info->flags & DF_TEXTREL) == 0) ++ elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); ++ ++ if (info->flags & DF_TEXTREL) ++ { ++ if (!add_dynamic_entry (DT_TEXTREL, 0)) ++ return FALSE; ++ /* Clear the DF_TEXTREL flag. It will be set again if we ++ write out an actual text relocation; we may not, because ++ at this point we do not know whether e.g. any .eh_frame ++ absolute relocations have been converted to PC-relative. */ ++ info->flags &= ~DF_TEXTREL; ++ } ++ } ++#undef add_dynamic_entry ++ ++ return TRUE; ++} ++ ++#define LARCH_LD_STACK_DEPTH 16 ++static int64_t larch_opc_stack[LARCH_LD_STACK_DEPTH]; ++static size_t larch_stack_top = 0; ++ ++static bfd_reloc_status_type ++loongarch_push (int64_t val) ++{ ++ if (LARCH_LD_STACK_DEPTH <= larch_stack_top) ++ return bfd_reloc_outofrange; ++ larch_opc_stack[larch_stack_top++] = val; ++ return bfd_reloc_ok; ++} ++ ++static bfd_reloc_status_type ++loongarch_pop (int64_t *val) ++{ ++ if (larch_stack_top == 0) ++ return bfd_reloc_outofrange; ++ BFD_ASSERT (val); ++ *val = larch_opc_stack[--larch_stack_top]; ++ return bfd_reloc_ok; ++} ++ ++static bfd_reloc_status_type ++loongarch_top (int64_t *val) ++{ ++ if (larch_stack_top == 0) ++ return bfd_reloc_outofrange; ++ BFD_ASSERT (val); ++ *val = larch_opc_stack[larch_stack_top - 1]; ++ return bfd_reloc_ok; ++} ++ ++static void ++loongarch_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) ++{ ++ BFD_ASSERT (s && s->contents); ++ const struct elf_backend_data *bed; ++ bfd_byte *loc; ++ ++ bed = get_elf_backend_data (abfd); ++ if (!(s->size > s->reloc_count * bed->s->sizeof_rela)) ++ BFD_ASSERT (s->size > s->reloc_count * bed->s->sizeof_rela); ++ loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); ++ bed->s->swap_reloca_out (abfd, rel, loc); ++} ++ ++/* Check rel->r_offset in range of contents. */ ++static bfd_reloc_status_type ++loongarch_check_offset (const Elf_Internal_Rela *rel, ++ const asection *input_section) ++{ ++ if (0 == strcmp(input_section->name, ".text") ++ && rel->r_offset > input_section->size) ++ return bfd_reloc_overflow; ++ ++ return bfd_reloc_ok; ++} ++ ++#define LARCH_RELOC_PERFORM_3OP(op1, op2, op3) \ ++ ({ \ ++ bfd_reloc_status_type ret = loongarch_pop (&op2); \ ++ if (ret == bfd_reloc_ok) \ ++ { \ ++ ret = loongarch_pop (&op1); \ ++ if (ret == bfd_reloc_ok) \ ++ ret = loongarch_push (op3); \ ++ } \ ++ ret; \ ++ }) ++ ++static bfd_reloc_status_type ++loongarch_reloc_rewrite_imm_insn (const Elf_Internal_Rela *rel, ++ const asection *input_section ATTRIBUTE_UNUSED, ++ reloc_howto_type *howto, bfd *input_bfd, ++ bfd_byte *contents, bfd_vma reloc_val) ++{ ++ int bits = bfd_get_reloc_size (howto) * 8; ++ uint32_t insn = bfd_get (bits, input_bfd, contents + rel->r_offset); ++ ++ if (!loongarch_adjust_reloc_bitsfield(howto, &reloc_val)) ++ return bfd_reloc_overflow; ++ ++ insn = (insn & (uint32_t)howto->src_mask) ++ | ((insn & (~(uint32_t)howto->dst_mask)) | reloc_val); ++ ++ bfd_put (bits, input_bfd, insn, contents + rel->r_offset); ++ ++ return bfd_reloc_ok; ++} ++ ++static bfd_reloc_status_type ++perform_relocation (const Elf_Internal_Rela *rel, asection *input_section, ++ reloc_howto_type *howto, bfd_vma value, ++ bfd *input_bfd, bfd_byte *contents) ++{ ++ int64_t opr1, opr2, opr3; ++ bfd_reloc_status_type r = bfd_reloc_ok; ++ int bits = bfd_get_reloc_size (howto) * 8; ++ ++ switch (ELFNN_R_TYPE (rel->r_info)) ++ { ++ case R_LARCH_SOP_PUSH_PCREL: ++ case R_LARCH_SOP_PUSH_ABSOLUTE: ++ case R_LARCH_SOP_PUSH_GPREL: ++ case R_LARCH_SOP_PUSH_TLS_TPREL: ++ case R_LARCH_SOP_PUSH_TLS_GOT: ++ case R_LARCH_SOP_PUSH_TLS_GD: ++ case R_LARCH_SOP_PUSH_PLT_PCREL: ++ r = loongarch_push (value); ++ break; ++ ++ case R_LARCH_SOP_PUSH_DUP: ++ r = loongarch_pop (&opr1); ++ if (r == bfd_reloc_ok) ++ { ++ r = loongarch_push (opr1); ++ if (r == bfd_reloc_ok) ++ r = loongarch_push (opr1); ++ } ++ break; ++ ++ case R_LARCH_SOP_ASSERT: ++ r = loongarch_pop (&opr1); ++ if (r != bfd_reloc_ok || !opr1) ++ r = bfd_reloc_notsupported; ++ break; ++ ++ case R_LARCH_SOP_NOT: ++ r = loongarch_pop (&opr1); ++ if (r == bfd_reloc_ok) ++ r = loongarch_push (!opr1); ++ break; ++ ++ case R_LARCH_SOP_SUB: ++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 - opr2); ++ break; ++ ++ case R_LARCH_SOP_SL: ++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 << opr2); ++ break; ++ ++ case R_LARCH_SOP_SR: ++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 >> opr2); ++ break; ++ ++ case R_LARCH_SOP_AND: ++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 & opr2); ++ break; ++ ++ case R_LARCH_SOP_ADD: ++ r = LARCH_RELOC_PERFORM_3OP (opr1, opr2, opr1 + opr2); ++ break; ++ ++ case R_LARCH_SOP_IF_ELSE: ++ r = loongarch_pop (&opr3); ++ if (r == bfd_reloc_ok) ++ { ++ r = loongarch_pop (&opr2); ++ if (r == bfd_reloc_ok) ++ { ++ r = loongarch_pop (&opr1); ++ if (r == bfd_reloc_ok) ++ r = loongarch_push (opr1 ? opr2 : opr3); ++ } ++ } ++ break; ++ ++ case R_LARCH_SOP_POP_32_S_10_5: ++ case R_LARCH_SOP_POP_32_S_10_12: ++ case R_LARCH_SOP_POP_32_S_10_16: ++ case R_LARCH_SOP_POP_32_S_10_16_S2: ++ case R_LARCH_SOP_POP_32_S_0_5_10_16_S2: ++ case R_LARCH_SOP_POP_32_S_0_10_10_16_S2: ++ case R_LARCH_SOP_POP_32_S_5_20: ++ case R_LARCH_SOP_POP_32_U_10_12: ++ case R_LARCH_SOP_POP_32_U: ++ r = loongarch_pop (&opr1); ++ if (r != bfd_reloc_ok) ++ break; ++ r = loongarch_check_offset (rel, input_section); ++ if (r != bfd_reloc_ok) ++ break; ++ ++ r = loongarch_reloc_rewrite_imm_insn (rel, input_section, ++ howto, input_bfd, ++ contents, (bfd_vma)opr1); ++ break; ++ ++ case R_LARCH_TLS_DTPREL32: ++ case R_LARCH_32: ++ case R_LARCH_TLS_DTPREL64: ++ case R_LARCH_64: ++ r = loongarch_check_offset (rel, input_section); ++ if (r != bfd_reloc_ok) ++ break; ++ ++ bfd_put (bits, input_bfd, value, contents + rel->r_offset); ++ break; ++ ++ case R_LARCH_ADD8: ++ case R_LARCH_ADD16: ++ case R_LARCH_ADD24: ++ case R_LARCH_ADD32: ++ case R_LARCH_ADD64: ++ r = loongarch_check_offset (rel, input_section); ++ if (r != bfd_reloc_ok) ++ break; ++ ++ opr1 = bfd_get (bits, input_bfd, contents + rel->r_offset); ++ bfd_put (bits, input_bfd, opr1 + value, contents + rel->r_offset); ++ break; ++ ++ case R_LARCH_SUB8: ++ case R_LARCH_SUB16: ++ case R_LARCH_SUB24: ++ case R_LARCH_SUB32: ++ case R_LARCH_SUB64: ++ r = loongarch_check_offset (rel, input_section); ++ if (r != bfd_reloc_ok) ++ break; ++ ++ opr1 = bfd_get (bits, input_bfd, contents + rel->r_offset); ++ bfd_put (bits, input_bfd, opr1 - value, contents + rel->r_offset); ++ break; ++ ++ /* For eh_frame and debug info. */ ++ case R_LARCH_32_PCREL: ++ value -= sec_addr (input_section) + rel->r_offset; ++ value += rel->r_addend; ++ bfd_vma word = bfd_get (howto->bitsize, input_bfd, ++ contents + rel->r_offset); ++ word = (word & ~howto->dst_mask) | (value & howto->dst_mask); ++ bfd_put (howto->bitsize, input_bfd, word, contents + rel->r_offset); ++ r = bfd_reloc_ok; ++ break; ++ ++ /* New reloc type. ++ R_LARCH_B16 ~ R_LARCH_TLS_GD_HI20. */ ++ case R_LARCH_B16: ++ case R_LARCH_B21: ++ case R_LARCH_B26: ++ case R_LARCH_ABS_HI20: ++ case R_LARCH_ABS_LO12: ++ case R_LARCH_ABS64_LO20: ++ case R_LARCH_ABS64_HI12: ++ case R_LARCH_PCALA_HI20: ++ case R_LARCH_PCALA_LO12: ++ case R_LARCH_PCALA64_LO20: ++ case R_LARCH_PCALA64_HI12: ++ case R_LARCH_GOT_PC_HI20: ++ case R_LARCH_GOT_PC_LO12: ++ case R_LARCH_GOT64_PC_LO20: ++ case R_LARCH_GOT64_PC_HI12: ++ case R_LARCH_GOT_HI20: ++ case R_LARCH_GOT_LO12: ++ case R_LARCH_GOT64_LO20: ++ case R_LARCH_GOT64_HI12: ++ case R_LARCH_TLS_LE_HI20: ++ case R_LARCH_TLS_LE_LO12: ++ case R_LARCH_TLS_LE64_LO20: ++ case R_LARCH_TLS_LE64_HI12: ++ case R_LARCH_TLS_IE_PC_HI20: ++ case R_LARCH_TLS_IE_PC_LO12: ++ case R_LARCH_TLS_IE64_PC_LO20: ++ case R_LARCH_TLS_IE64_PC_HI12: ++ case R_LARCH_TLS_IE_HI20: ++ case R_LARCH_TLS_IE_LO12: ++ case R_LARCH_TLS_IE64_LO20: ++ case R_LARCH_TLS_IE64_HI12: ++ case R_LARCH_TLS_LD_PC_HI20: ++ case R_LARCH_TLS_LD_HI20: ++ case R_LARCH_TLS_GD_PC_HI20: ++ case R_LARCH_TLS_GD_HI20: ++ r = loongarch_check_offset (rel, input_section); ++ if (r != bfd_reloc_ok) ++ break; ++ ++ r = loongarch_reloc_rewrite_imm_insn (rel, input_section, ++ howto, input_bfd, ++ contents, value); ++ break; ++ ++ case R_LARCH_RELAX: ++ break; ++ ++ default: ++ r = bfd_reloc_notsupported; ++ } ++ return r; ++} ++ ++#define LARCH_RECENT_RELOC_QUEUE_LENGTH 72 ++static struct ++{ ++ bfd *bfd; ++ asection *section; ++ bfd_vma r_offset; ++ int r_type; ++ bfd_vma relocation; ++ Elf_Internal_Sym *sym; ++ struct elf_link_hash_entry *h; ++ bfd_vma addend; ++ int64_t top_then; ++} larch_reloc_queue[LARCH_RECENT_RELOC_QUEUE_LENGTH]; ++static size_t larch_reloc_queue_head = 0; ++static size_t larch_reloc_queue_tail = 0; ++ ++static const char * ++loongarch_sym_name (bfd *input_bfd, struct elf_link_hash_entry *h, ++ Elf_Internal_Sym *sym) ++{ ++ const char *ret = NULL; ++ if (sym) ++ ret = bfd_elf_string_from_elf_section (input_bfd, ++ elf_symtab_hdr (input_bfd).sh_link, ++ sym->st_name); ++ else if (h) ++ ret = h->root.root.string; ++ ++ if (ret == NULL || *ret == '\0') ++ ret = "<nameless>"; ++ return ret; ++} ++ ++static void ++loongarch_record_one_reloc (bfd *abfd, asection *section, int r_type, ++ bfd_vma r_offset, Elf_Internal_Sym *sym, ++ struct elf_link_hash_entry *h, bfd_vma addend) ++{ ++ if ((larch_reloc_queue_head == 0 ++ && larch_reloc_queue_tail == LARCH_RECENT_RELOC_QUEUE_LENGTH - 1) ++ || larch_reloc_queue_head == larch_reloc_queue_tail + 1) ++ larch_reloc_queue_head = ++ (larch_reloc_queue_head + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH; ++ larch_reloc_queue[larch_reloc_queue_tail].bfd = abfd; ++ larch_reloc_queue[larch_reloc_queue_tail].section = section; ++ larch_reloc_queue[larch_reloc_queue_tail].r_offset = r_offset; ++ larch_reloc_queue[larch_reloc_queue_tail].r_type = r_type; ++ larch_reloc_queue[larch_reloc_queue_tail].sym = sym; ++ larch_reloc_queue[larch_reloc_queue_tail].h = h; ++ larch_reloc_queue[larch_reloc_queue_tail].addend = addend; ++ loongarch_top (&larch_reloc_queue[larch_reloc_queue_tail].top_then); ++ larch_reloc_queue_tail = ++ (larch_reloc_queue_tail + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH; ++} ++ ++static void ++loongarch_dump_reloc_record (void (*p) (const char *fmt, ...)) ++{ ++ size_t i = larch_reloc_queue_head; ++ bfd *a_bfd = NULL; ++ asection *section = NULL; ++ bfd_vma r_offset = 0; ++ int inited = 0; ++ p ("Dump relocate record:\n"); ++ p ("stack top\t\trelocation name\t\tsymbol"); ++ while (i != larch_reloc_queue_tail) ++ { ++ if (a_bfd != larch_reloc_queue[i].bfd ++ || section != larch_reloc_queue[i].section ++ || r_offset != larch_reloc_queue[i].r_offset) ++ { ++ a_bfd = larch_reloc_queue[i].bfd; ++ section = larch_reloc_queue[i].section; ++ r_offset = larch_reloc_queue[i].r_offset; ++ p ("\nat %pB(%pA+0x%v):\n", larch_reloc_queue[i].bfd, ++ larch_reloc_queue[i].section, larch_reloc_queue[i].r_offset); ++ } ++ ++ if (!inited) ++ inited = 1, p ("...\n"); ++ ++ reloc_howto_type *howto = ++ loongarch_elf_rtype_to_howto (larch_reloc_queue[i].bfd, ++ larch_reloc_queue[i].r_type); ++ p ("0x%V %s\t`%s'", (bfd_vma) larch_reloc_queue[i].top_then, ++ howto ? howto->name : "<unknown reloc>", ++ loongarch_sym_name (larch_reloc_queue[i].bfd, larch_reloc_queue[i].h, ++ larch_reloc_queue[i].sym)); ++ ++ long addend = larch_reloc_queue[i].addend; ++ if (addend < 0) ++ p (" - %ld", -addend); ++ else if (0 < addend) ++ p (" + %ld(0x%v)", addend, larch_reloc_queue[i].addend); ++ ++ p ("\n"); ++ i = (i + 1) % LARCH_RECENT_RELOC_QUEUE_LENGTH; ++ } ++ p ("\n" ++ "-- Record dump end --\n\n"); ++} ++ ++static bfd_boolean ++loongarch_reloc_is_fatal (struct bfd_link_info *info, ++ bfd *input_bfd, ++ asection *input_section, ++ Elf_Internal_Rela *rel, ++ reloc_howto_type *howto, ++ bfd_reloc_status_type rtype, ++ bfd_boolean is_undefweak, ++ const char *name, ++ const char *msg) ++{ ++ bfd_boolean fatal = TRUE; ++ switch (rtype) ++ { ++ /* 'dangerous' means we do it but can't promise it's ok ++ 'unsupport' means out of ability of relocation type ++ 'undefined' means we can't deal with the undefined symbol. */ ++ case bfd_reloc_undefined: ++ info->callbacks->undefined_symbol (info, name, input_bfd, input_section, ++ rel->r_offset, TRUE); ++ info->callbacks->info ("%X%pB(%pA+0x%v): error: %s against %s`%s':\n%s\n", ++ input_bfd, input_section, rel->r_offset, ++ howto->name, ++ is_undefweak ? "[undefweak] " : "", name, msg); ++ break; ++ case bfd_reloc_dangerous: ++ info->callbacks->info ("%pB(%pA+0x%v): warning: %s against %s`%s':\n%s\n", ++ input_bfd, input_section, rel->r_offset, ++ howto->name, ++ is_undefweak ? "[undefweak] " : "", name, msg); ++ fatal = FALSE; ++ break; ++ case bfd_reloc_notsupported: ++ info->callbacks->info ("%X%pB(%pA+0x%v): error: %s against %s`%s':\n%s\n", ++ input_bfd, input_section, rel->r_offset, ++ howto->name, ++ is_undefweak ? "[undefweak] " : "", name, msg); ++ break; ++ default: ++ break; ++ } ++ return fatal; ++} ++ ++#define RELOCATE_CALC_PC32_HI20(relocation, pc) \ ++ ({ \ ++ bfd_vma lo = (relocation) & ((bfd_vma)0xfff); \ ++ pc = pc & (~(bfd_vma)0xfff); \ ++ if (lo > 0x7ff) \ ++ { \ ++ relocation += 0x1000; \ ++ } \ ++ relocation &= ~(bfd_vma)0xfff; \ ++ relocation -= pc; \ ++ }) ++ ++#define RELOCATE_CALC_PC64_HI32(relocation, pc) \ ++ ({ \ ++ bfd_vma lo = (relocation) & ((bfd_vma)0xfff); \ ++ if (lo > 0x7ff) \ ++ { \ ++ relocation -= 0x100000000; \ ++ } \ ++ relocation -= (pc & ~(bfd_vma)0xffffffff); \ ++ }) ++ ++static int ++loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, ++ bfd *input_bfd, asection *input_section, ++ bfd_byte *contents, Elf_Internal_Rela *relocs, ++ Elf_Internal_Sym *local_syms, ++ asection **local_sections) ++{ ++ Elf_Internal_Rela *rel; ++ Elf_Internal_Rela *relend; ++ bfd_boolean fatal = FALSE; ++ asection *sreloc = elf_section_data (input_section)->sreloc; ++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info); ++ Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_bfd); ++ struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); ++ bfd_vma *local_got_offsets = elf_local_got_offsets (input_bfd); ++ bfd_boolean is_pic = bfd_link_pic (info); ++ bfd_boolean is_dyn = elf_hash_table (info)->dynamic_sections_created; ++ asection *plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; ++ asection *got = htab->elf.sgot; ++ ++ relend = relocs + input_section->reloc_count; ++ for (rel = relocs; rel < relend; rel++) ++ { ++ int r_type = ELFNN_R_TYPE (rel->r_info); ++ unsigned long r_symndx = ELFNN_R_SYM (rel->r_info); ++ bfd_vma pc = sec_addr (input_section) + rel->r_offset; ++ reloc_howto_type *howto = NULL; ++ asection *sec = NULL; ++ Elf_Internal_Sym *sym = NULL; ++ struct elf_link_hash_entry *h = NULL; ++ const char *name; ++ bfd_reloc_status_type r = bfd_reloc_ok; ++ bfd_boolean is_ie, is_undefweak, unresolved_reloc, defined_local; ++ bfd_boolean resolved_local, resolved_dynly, resolved_to_const; ++ char tls_type; ++ bfd_vma relocation, off, ie_off; ++ int i, j; ++ ++ howto = loongarch_elf_rtype_to_howto (input_bfd, r_type); ++ if (howto == NULL || r_type == R_LARCH_GNU_VTINHERIT ++ || r_type == R_LARCH_GNU_VTENTRY) ++ continue; ++ ++ /* This is a final link. */ ++ if (r_symndx < symtab_hdr->sh_info) ++ { ++ is_undefweak = FALSE; ++ unresolved_reloc = FALSE; ++ sym = local_syms + r_symndx; ++ sec = local_sections[r_symndx]; ++ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); ++ ++ /* Relocate against local STT_GNU_IFUNC symbol. */ ++ if (!bfd_link_relocatable (info) ++ && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) ++ { ++ h = elfNN_loongarch_get_local_sym_hash (htab, input_bfd, rel, ++ FALSE); ++ if (h == NULL) ++ abort (); ++ ++ /* Set STT_GNU_IFUNC symbol value. */ ++ h->root.u.def.value = sym->st_value; ++ h->root.u.def.section = sec; ++ } ++ defined_local = TRUE; ++ resolved_local = TRUE; ++ resolved_dynly = FALSE; ++ resolved_to_const = FALSE; ++ ++ /* Calc in funtion elf_link_input_bfd, ++ * if #define elf_backend_rela_normal to 1. */ ++ if (bfd_link_relocatable (info) ++ && ELF_ST_TYPE (sym->st_info) == STT_SECTION) ++ continue; ++ } ++ else ++ { ++ bfd_boolean warned, ignored; ++ ++ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, ++ r_symndx, symtab_hdr, sym_hashes, ++ h, sec, relocation, ++ unresolved_reloc, warned, ignored); ++ /* Here means symbol isn't local symbol only and 'h != NULL'. */ ++ ++ /* The 'unresolved_syms_in_objects' specify how to deal with undefined ++ symbol. And 'dynamic_undefined_weak' specify what to do when ++ meeting undefweak. */ ++ ++ if ((is_undefweak = h->root.type == bfd_link_hash_undefweak)) ++ { ++ defined_local = FALSE; ++ resolved_local = FALSE; ++ resolved_to_const = (!is_dyn || h->dynindx == -1 ++ || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); ++ resolved_dynly = !resolved_local && !resolved_to_const; ++ } ++ else if (warned) ++ { ++ /* Symbol undefined offen means failed already. I don't know why ++ 'warned' here but I guess it want to continue relocating as if ++ no error occures to find other errors as more as possible. */ ++ ++ /* To avoid generating warning messages about truncated ++ relocations, set the relocation's address to be the same as ++ the start of this section. */ ++ relocation = (input_section->output_section ++ ? input_section->output_section->vma ++ : 0); ++ ++ defined_local = relocation != 0; ++ resolved_local = defined_local; ++ resolved_to_const = !resolved_local; ++ resolved_dynly = FALSE; ++ } ++ else ++ { ++ defined_local = !unresolved_reloc && !ignored; ++ resolved_local = ++ defined_local && SYMBOL_REFERENCES_LOCAL (info, h); ++ resolved_dynly = !resolved_local; ++ resolved_to_const = !resolved_local && !resolved_dynly; ++ } ++ } ++ ++ name = loongarch_sym_name (input_bfd, h, sym); ++ ++ if (sec != NULL && discarded_section (sec)) ++ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, rel, ++ 1, relend, howto, 0, contents); ++ ++ if (bfd_link_relocatable (info)) ++ continue; ++ ++ /* The r_symndx will be STN_UNDEF (zero) only for relocs against symbols ++ from removed linkonce sections, or sections discarded by a linker ++ script. Also for R_*_SOP_PUSH_ABSOLUTE and PCREL to specify const. */ ++ if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) ++ { ++ defined_local = FALSE; ++ resolved_local = FALSE; ++ resolved_dynly = FALSE; ++ resolved_to_const = TRUE; ++ } ++ ++ /* The ifunc reference generate plt. */ ++ if (h && h->type == STT_GNU_IFUNC && h->plt.offset != MINUS_ONE) ++ { ++ defined_local = TRUE; ++ resolved_local = TRUE; ++ resolved_dynly = FALSE; ++ resolved_to_const = FALSE; ++ relocation = sec_addr (plt) + h->plt.offset; ++ } ++ ++ unresolved_reloc = resolved_dynly; ++ ++ BFD_ASSERT (resolved_local + resolved_dynly + resolved_to_const == 1); ++ ++ /* BFD_ASSERT (!resolved_dynly || (h && h->dynindx != -1));. */ ++ ++ BFD_ASSERT (!resolved_local || defined_local); ++ ++ is_ie = FALSE; ++ switch (r_type) ++ { ++ case R_LARCH_MARK_PCREL: ++ case R_LARCH_MARK_LA: ++ case R_LARCH_NONE: ++ r = bfd_reloc_continue; ++ unresolved_reloc = FALSE; ++ break; ++ ++ case R_LARCH_32: ++ case R_LARCH_64: ++ if (resolved_dynly || (is_pic && resolved_local)) ++ { ++ Elf_Internal_Rela outrel; ++ ++ /* When generating a shared object, these relocations are copied ++ into the output file to be resolved at run time. */ ++ ++ outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, ++ input_section, ++ rel->r_offset); ++ ++ unresolved_reloc = (!((bfd_vma) -2 <= outrel.r_offset) ++ && (input_section->flags & SEC_ALLOC)); ++ ++ outrel.r_offset += sec_addr (input_section); ++ ++ /* A pointer point to a ifunc symbol. */ ++ if (h && h->type == STT_GNU_IFUNC) ++ { ++ if (h->dynindx == -1) ++ { ++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE); ++ outrel.r_addend = (h->root.u.def.value ++ + h->root.u.def.section->output_section->vma ++ + h->root.u.def.section->output_offset); ++ } ++ else ++ { ++ outrel.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN); ++ outrel.r_addend = 0; ++ } ++ ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ ++ if (htab->elf.splt != NULL) ++ sreloc = htab->elf.srelgot; ++ else ++ sreloc = htab->elf.irelplt; ++ } ++ else ++ { ++ ++ if (bfd_link_pic (info)) ++ sreloc = htab->elf.irelifunc; ++ else if (htab->elf.splt != NULL) ++ sreloc = htab->elf.srelgot; ++ else ++ sreloc = htab->elf.irelplt; ++ } ++ } ++ else if (resolved_dynly) ++ { ++ if (h->dynindx == -1) ++ { ++ if (h->root.type == bfd_link_hash_undefined) ++ (*info->callbacks->undefined_symbol) ++ (info, name, input_bfd, input_section, ++ rel->r_offset, TRUE); ++ ++ outrel.r_info = ELFNN_R_INFO (0, r_type); ++ } ++ else ++ outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); ++ ++ outrel.r_addend = rel->r_addend; ++ } ++ else ++ { ++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ outrel.r_addend = relocation + rel->r_addend; ++ } ++ ++ /* No alloc space of func allocate_dynrelocs. */ ++ if (unresolved_reloc ++ && !(h && (h->is_weakalias || !h->dyn_relocs))) ++ loongarch_elf_append_rela (output_bfd, sreloc, &outrel); ++ } ++ ++ relocation += rel->r_addend; ++ break; ++ ++ case R_LARCH_ADD8: ++ case R_LARCH_ADD16: ++ case R_LARCH_ADD24: ++ case R_LARCH_ADD32: ++ case R_LARCH_ADD64: ++ case R_LARCH_SUB8: ++ case R_LARCH_SUB16: ++ case R_LARCH_SUB24: ++ case R_LARCH_SUB32: ++ case R_LARCH_SUB64: ++ if (resolved_dynly) ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_undefined, is_undefweak, name, ++ "Can't be resolved dynamically. " ++ "If this procedure is hand-written assembly,\n" ++ "there must be something like '.dword sym1 - sym2' " ++ "to generate these relocs\n" ++ "and we can't get known link-time address of " ++ "these symbols.")); ++ else ++ relocation += rel->r_addend; ++ break; ++ ++ case R_LARCH_TLS_DTPREL32: ++ case R_LARCH_TLS_DTPREL64: ++ if (resolved_dynly) ++ { ++ Elf_Internal_Rela outrel; ++ ++ outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, ++ input_section, ++ rel->r_offset); ++ unresolved_reloc = (!((bfd_vma) -2 <= outrel.r_offset) ++ && (input_section->flags & SEC_ALLOC)); ++ outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); ++ outrel.r_offset += sec_addr (input_section); ++ outrel.r_addend = rel->r_addend; ++ if (unresolved_reloc) ++ loongarch_elf_append_rela (output_bfd, sreloc, &outrel); ++ break; ++ } ++ ++ if (resolved_to_const) ++ fatal = loongarch_reloc_is_fatal (info, input_bfd, input_section, ++ rel, howto, ++ bfd_reloc_notsupported, ++ is_undefweak, name, ++ "Internal:"); ++ if (resolved_local) ++ { ++ if (!elf_hash_table (info)->tls_sec) ++ { ++ fatal = loongarch_reloc_is_fatal (info, input_bfd, ++ input_section, rel, howto, bfd_reloc_notsupported, ++ is_undefweak, name, "TLS section not be created"); ++ } ++ else ++ relocation -= elf_hash_table (info)->tls_sec->vma; ++ } ++ else ++ { ++ fatal = loongarch_reloc_is_fatal (info, input_bfd, ++ input_section, rel, howto, bfd_reloc_undefined, ++ is_undefweak, name, ++ "TLS LE just can be resolved local only."); ++ } ++ ++ break; ++ ++ case R_LARCH_SOP_PUSH_TLS_TPREL: ++ if (resolved_local) ++ { ++ if (!elf_hash_table (info)->tls_sec) ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "TLS section not be created")); ++ else ++ relocation -= elf_hash_table (info)->tls_sec->vma; ++ } ++ else ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_undefined, is_undefweak, name, ++ "TLS LE just can be resolved local only.")); ++ break; ++ ++ case R_LARCH_SOP_PUSH_ABSOLUTE: ++ if (is_undefweak) ++ { ++ if (resolved_dynly) ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_dangerous, is_undefweak, name, ++ "Someone require us to resolve undefweak " ++ "symbol dynamically. \n" ++ "But this reloc can't be done. " ++ "I think I can't throw error " ++ "for this\n" ++ "so I resolved it to 0. " ++ "I suggest to re-compile with '-fpic'.")); ++ ++ relocation = 0; ++ unresolved_reloc = FALSE; ++ break; ++ } ++ ++ if (resolved_to_const) ++ { ++ relocation += rel->r_addend; ++ break; ++ } ++ ++ if (is_pic) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Under PIC we don't know load address. Re-compile " ++ "with '-fpic'?")); ++ break; ++ } ++ ++ if (resolved_dynly) ++ { ++ if (!(plt && h && h->plt.offset != MINUS_ONE)) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_undefined, is_undefweak, name, ++ "Can't be resolved dynamically. Try to re-compile " ++ "with '-fpic'?")); ++ break; ++ } ++ ++ if (rel->r_addend != 0) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Shouldn't be with r_addend.")); ++ break; ++ } ++ ++ relocation = sec_addr (plt) + h->plt.offset; ++ unresolved_reloc = FALSE; ++ break; ++ } ++ ++ if (resolved_local) ++ { ++ relocation += rel->r_addend; ++ break; ++ } ++ ++ break; ++ ++ case R_LARCH_SOP_PUSH_PCREL: ++ case R_LARCH_SOP_PUSH_PLT_PCREL: ++ unresolved_reloc = FALSE; ++ ++ if (is_undefweak) ++ { ++ i = 0, j = 0; ++ relocation = 0; ++ if (resolved_dynly) ++ { ++ if (h && h->plt.offset != MINUS_ONE) ++ i = 1, j = 2; ++ else ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_dangerous, is_undefweak, name, ++ "Undefweak need to be resolved dynamically, " ++ "but PLT stub doesn't represent.")); ++ } ++ } ++ else ++ { ++ if (!(defined_local || (h && h->plt.offset != MINUS_ONE))) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_undefined, is_undefweak, name, ++ "PLT stub does not represent and " ++ "symbol not defined.")); ++ break; ++ } ++ ++ if (resolved_local) ++ i = 0, j = 2; ++ else /* if (resolved_dynly) */ ++ { ++ if (!(h && h->plt.offset != MINUS_ONE)) ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_dangerous, is_undefweak, name, ++ "Internal: PLT stub doesn't represent. " ++ "Resolve it with pcrel")); ++ i = 1, j = 3; ++ } ++ } ++ ++ for (; i < j; i++) ++ { ++ if ((i & 1) == 0 && defined_local) ++ { ++ relocation -= pc; ++ relocation += rel->r_addend; ++ break; ++ } ++ ++ if ((i & 1) && h && h->plt.offset != MINUS_ONE) ++ { ++ if (rel->r_addend != 0) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "PLT shouldn't be with r_addend.")); ++ break; ++ } ++ relocation = sec_addr (plt) + h->plt.offset - pc; ++ break; ++ } ++ } ++ break; ++ ++ case R_LARCH_SOP_PUSH_GPREL: ++ unresolved_reloc = FALSE; ++ ++ if (rel->r_addend != 0) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Shouldn't be with r_addend.")); ++ break; ++ } ++ ++ if (h != NULL) ++ { ++ off = h->got.offset & (~1); ++ ++ if (h->got.offset == MINUS_ONE && h->type != STT_GNU_IFUNC) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Internal: GOT entry doesn't represent.")); ++ break; ++ } ++ ++ /* Hidden symbol not has .got entry, only .got.plt entry ++ so gprel is (plt - got). */ ++ if (h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC) ++ { ++ if (h->plt.offset == (bfd_vma) -1) ++ { ++ abort(); ++ } ++ ++ bfd_vma plt_index = h->plt.offset / PLT_ENTRY_SIZE; ++ off = plt_index * GOT_ENTRY_SIZE; ++ ++ if (htab->elf.splt != NULL) ++ { ++ /* Section .plt header is 2 times of plt entry. */ ++ off = sec_addr (htab->elf.sgotplt) + off ++ - sec_addr (htab->elf.sgot); ++ } ++ else ++ { ++ /* Section iplt not has plt header. */ ++ off = sec_addr (htab->elf.igotplt) + off ++ - sec_addr (htab->elf.sgot); ++ } ++ } ++ ++ if ((h->got.offset & 1) == 0) ++ { ++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (is_dyn, ++ bfd_link_pic (info), h) ++ && ((bfd_link_pic (info) ++ && SYMBOL_REFERENCES_LOCAL (info, h)))) ++ { ++ /* This is actually a static link, or it is a ++ -Bsymbolic link and the symbol is defined ++ locally, or the symbol was forced to be local ++ because of a version file. We must initialize ++ this entry in the global offset table. Since the ++ offset must always be a multiple of the word size, ++ we use the least significant bit to record whether ++ we have initialized it already. ++ ++ When doing a dynamic link, we create a rela.got ++ relocation entry to initialize the value. This ++ is done in the finish_dynamic_symbol routine. */ ++ ++ if (resolved_dynly) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_dangerous, is_undefweak, name, ++ "Internal: here shouldn't dynamic.")); ++ } ++ ++ if (!(defined_local || resolved_to_const)) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_undefined, is_undefweak, name, ++ "Internal: ")); ++ break; ++ } ++ ++ asection *s; ++ Elf_Internal_Rela outrel; ++ /* We need to generate a R_LARCH_RELATIVE reloc ++ for the dynamic linker. */ ++ s = htab->elf.srelgot; ++ if (!s) ++ { ++ fatal = loongarch_reloc_is_fatal ++ (info, input_bfd, ++ input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Internal: '.rel.got' not represent"); ++ break; ++ } ++ ++ outrel.r_offset = sec_addr (got) + off; ++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ outrel.r_addend = relocation; /* Link-time addr. */ ++ loongarch_elf_append_rela (output_bfd, s, &outrel); ++ } ++ bfd_put_NN (output_bfd, relocation, got->contents + off); ++ h->got.offset |= 1; ++ } ++ } ++ else ++ { ++ if (!local_got_offsets) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Internal: local got offsets not reporesent.")); ++ break; ++ } ++ ++ off = local_got_offsets[r_symndx] & (~1); ++ ++ if (local_got_offsets[r_symndx] == MINUS_ONE) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Internal: GOT entry doesn't represent.")); ++ break; ++ } ++ ++ /* The offset must always be a multiple of the word size. ++ So, we can use the least significant bit to record ++ whether we have already processed this entry. */ ++ if (local_got_offsets[r_symndx] == 0) ++ { ++ if (is_pic) ++ { ++ asection *s; ++ Elf_Internal_Rela outrel; ++ /* We need to generate a R_LARCH_RELATIVE reloc ++ for the dynamic linker. */ ++ s = htab->elf.srelgot; ++ if (!s) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_notsupported, is_undefweak, name, ++ "Internal: '.rel.got' not represent")); ++ break; ++ } ++ ++ outrel.r_offset = sec_addr (got) + off; ++ outrel.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ outrel.r_addend = relocation; /* Link-time addr. */ ++ loongarch_elf_append_rela (output_bfd, s, &outrel); ++ } ++ ++ bfd_put_NN (output_bfd, relocation, got->contents + off); ++ local_got_offsets[r_symndx] |= 1; ++ } ++ } ++ relocation = off; ++ ++ break; ++ ++ case R_LARCH_SOP_PUSH_TLS_GOT: ++ case R_LARCH_SOP_PUSH_TLS_GD: ++ { ++ unresolved_reloc = FALSE; ++ if (r_type == R_LARCH_SOP_PUSH_TLS_GOT) ++ is_ie = TRUE; ++ ++ bfd_vma got_off = 0; ++ if (h != NULL) ++ { ++ got_off = h->got.offset; ++ h->got.offset |= 1; ++ } ++ else ++ { ++ got_off = local_got_offsets[r_symndx]; ++ local_got_offsets[r_symndx] |= 1; ++ } ++ ++ BFD_ASSERT (got_off != MINUS_ONE); ++ ++ ie_off = 0; ++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx); ++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE)) ++ ie_off = 2 * GOT_ENTRY_SIZE; ++ ++ if ((got_off & 1) == 0) ++ { ++ Elf_Internal_Rela rela; ++ asection *srel = htab->elf.srelgot; ++ bfd_vma tls_block_off = 0; ++ ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ BFD_ASSERT (elf_hash_table (info)->tls_sec); ++ tls_block_off = relocation ++ - elf_hash_table (info)->tls_sec->vma; ++ } ++ ++ if (tls_type & GOT_TLS_GD) ++ { ++ rela.r_offset = sec_addr (got) + got_off; ++ rela.r_addend = 0; ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ /* Local sym, used in exec, set module id 1. */ ++ if (bfd_link_executable (info)) ++ bfd_put_NN (output_bfd, 1, got->contents + got_off); ++ else ++ { ++ rela.r_info = ELFNN_R_INFO (0, ++ R_LARCH_TLS_DTPMODNN); ++ loongarch_elf_append_rela (output_bfd, srel, &rela); ++ } ++ ++ bfd_put_NN (output_bfd, tls_block_off, ++ got->contents + got_off + GOT_ENTRY_SIZE); ++ } ++ /* Dynamic resolved. */ ++ else ++ { ++ /* Dynamic relocate module id. */ ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_DTPMODNN); ++ loongarch_elf_append_rela (output_bfd, srel, &rela); ++ ++ /* Dynamic relocate offset of block. */ ++ rela.r_offset += GOT_ENTRY_SIZE; ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_DTPRELNN); ++ loongarch_elf_append_rela (output_bfd, srel, &rela); ++ } ++ } ++ if (tls_type & GOT_TLS_IE) ++ { ++ rela.r_offset = sec_addr (got) + got_off + ie_off; ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ /* Local sym, used in exec, set module id 1. */ ++ if (!bfd_link_executable (info)) ++ { ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_TPRELNN); ++ rela.r_addend = tls_block_off; ++ loongarch_elf_append_rela (output_bfd, srel, &rela); ++ } ++ ++ bfd_put_NN (output_bfd, tls_block_off, ++ got->contents + got_off + ie_off); ++ } ++ /* Dynamic resolved. */ ++ else ++ { ++ /* Dynamic relocate offset of block. */ ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_TPRELNN); ++ rela.r_addend = 0; ++ loongarch_elf_append_rela (output_bfd, srel, &rela); ++ } ++ } ++ } ++ ++ relocation = (got_off & (~(bfd_vma)1)) + (is_ie ? ie_off : 0); ++ } ++ break; ++ ++ /* New reloc types. */ ++ case R_LARCH_B21: ++ case R_LARCH_B26: ++ case R_LARCH_B16: ++ unresolved_reloc = FALSE; ++ if (is_undefweak) ++ { ++ relocation = 0; ++ } ++ ++ if (resolved_local) ++ { ++ relocation -= pc; ++ relocation += rel->r_addend; ++ } ++ else if (resolved_dynly) ++ { ++ BFD_ASSERT (h ++ && (h->plt.offset != MINUS_ONE ++ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) ++ && rel->r_addend == 0); ++ if (h && h->plt.offset == MINUS_ONE ++ && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) ++ { ++ relocation -= pc; ++ relocation += rel->r_addend; ++ } ++ else ++ relocation = sec_addr (plt) + h->plt.offset - pc; ++ } ++ ++ break; ++ ++ case R_LARCH_ABS_HI20: ++ case R_LARCH_ABS_LO12: ++ case R_LARCH_ABS64_LO20: ++ case R_LARCH_ABS64_HI12: ++ BFD_ASSERT (!is_pic); ++ ++ if (is_undefweak) ++ { ++ BFD_ASSERT (resolved_dynly); ++ relocation = 0; ++ break; ++ } ++ else if (resolved_to_const || resolved_local) ++ { ++ relocation += rel->r_addend; ++ } ++ else if (resolved_dynly) ++ { ++ unresolved_reloc = FALSE; ++ BFD_ASSERT ((plt && h && h->plt.offset != MINUS_ONE) ++ && rel->r_addend == 0); ++ relocation = sec_addr (plt) + h->plt.offset; ++ } ++ ++ break; ++ ++ case R_LARCH_PCALA_HI20: ++ unresolved_reloc = FALSE; ++ if (h && h->plt.offset != MINUS_ONE) ++ relocation = sec_addr (plt) + h->plt.offset; ++ else ++ relocation += rel->r_addend; ++ ++ RELOCATE_CALC_PC32_HI20 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_PCALA_LO12: ++ /* Not support if sym_addr in 2k page edge. ++ pcalau12i pc_hi20 (sym_addr) ++ ld.w/d pc_lo12 (sym_addr) ++ ld.w/d pc_lo12 (sym_addr + x) ++ ... ++ can not calc correct address ++ if sym_addr < 0x800 && sym_addr + x >= 0x800. */ ++ ++ if (h && h->plt.offset != MINUS_ONE) ++ relocation = sec_addr (plt) + h->plt.offset; ++ else ++ relocation += rel->r_addend; ++ ++ { ++ relocation &= 0xfff; ++ /* Signed extend. */ ++ relocation = (relocation ^ 0x800) - 0x800; ++ ++ /* For 2G jump, generate pcalau12i, jirl. */ ++ /* If use jirl, turns to R_LARCH_B16. */ ++ uint32_t insn = bfd_get (32, input_bfd, contents + rel->r_offset); ++ if ((insn & 0x4c000000) == 0x4c000000) ++ { ++ rel->r_info = ELFNN_R_INFO (r_symndx, R_LARCH_B16); ++ howto = loongarch_elf_rtype_to_howto (input_bfd, R_LARCH_B16); ++ } ++ } ++ break; ++ ++ case R_LARCH_PCALA64_LO20: ++ case R_LARCH_PCALA64_HI12: ++ if (h && h->plt.offset != MINUS_ONE) ++ relocation = sec_addr (plt) + h->plt.offset; ++ else ++ relocation += rel->r_addend; ++ ++ RELOCATE_CALC_PC64_HI32 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_GOT_PC_HI20: ++ case R_LARCH_GOT_HI20: ++ /* Calc got offset. */ ++ { ++ unresolved_reloc = FALSE; ++ BFD_ASSERT (rel->r_addend == 0); ++ ++ bfd_vma got_off = 0; ++ if (h != NULL) ++ { ++ /* GOT ref or ifunc. */ ++ BFD_ASSERT (h->got.offset != MINUS_ONE ++ || h->type == STT_GNU_IFUNC); ++ ++ got_off = h->got.offset & (~(bfd_vma)1); ++ /* Hidden symbol not has got entry, ++ * only got.plt entry so it is (plt - got). */ ++ if (h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC) ++ { ++ bfd_vma idx; ++ if (htab->elf.splt != NULL) ++ { ++ idx = (h->plt.offset - PLT_HEADER_SIZE) ++ / PLT_ENTRY_SIZE; ++ got_off = sec_addr (htab->elf.sgotplt) ++ + GOTPLT_HEADER_SIZE ++ + (idx * GOT_ENTRY_SIZE) ++ - sec_addr (htab->elf.sgot); ++ } ++ else ++ { ++ idx = h->plt.offset / PLT_ENTRY_SIZE; ++ got_off = sec_addr (htab->elf.sgotplt) ++ + (idx * GOT_ENTRY_SIZE) ++ - sec_addr (htab->elf.sgot); ++ } ++ } ++ ++ if ((h->got.offset & 1) == 0) ++ { ++ /* We need to generate a R_LARCH_RELATIVE reloc once ++ * in loongarch_elf_finish_dynamic_symbol or now, ++ * call finish_dyn && nopic ++ * or !call finish_dyn && pic. */ ++ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (is_dyn, ++ bfd_link_pic (info), ++ h) ++ && bfd_link_pic (info) ++ && SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ Elf_Internal_Rela rela; ++ rela.r_offset = sec_addr (got) + got_off; ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ rela.r_addend = relocation; ++ loongarch_elf_append_rela (output_bfd, ++ htab->elf.srelgot, &rela); ++ } ++ h->got.offset |= 1; ++ } ++ } ++ else ++ { ++ BFD_ASSERT (local_got_offsets ++ && local_got_offsets[r_symndx] != MINUS_ONE); ++ ++ got_off = local_got_offsets[r_symndx] & (~(bfd_vma)1); ++ if ((local_got_offsets[r_symndx] & 1) == 0) ++ { ++ if (bfd_link_pic (info)) ++ { ++ Elf_Internal_Rela rela; ++ rela.r_offset = sec_addr (got) + got_off; ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ rela.r_addend = relocation; ++ loongarch_elf_append_rela (output_bfd, ++ htab->elf.srelgot, &rela); ++ } ++ local_got_offsets[r_symndx] |= 1; ++ } ++ } ++ ++ bfd_put_NN (output_bfd, relocation, got->contents + got_off); ++ ++ relocation = got_off + sec_addr (got); ++ } ++ ++ if (r_type == R_LARCH_GOT_PC_HI20) ++ RELOCATE_CALC_PC32_HI20 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_GOT_PC_LO12: ++ case R_LARCH_GOT64_PC_LO20: ++ case R_LARCH_GOT64_PC_HI12: ++ case R_LARCH_GOT_LO12: ++ case R_LARCH_GOT64_LO20: ++ case R_LARCH_GOT64_HI12: ++ { ++ unresolved_reloc = FALSE; ++ bfd_vma got_off; ++ if (h) ++ got_off = h->got.offset & (~(bfd_vma)1); ++ else ++ got_off = local_got_offsets[r_symndx] & (~(bfd_vma)1); ++ ++ if (h && h->got.offset == MINUS_ONE && h->type == STT_GNU_IFUNC) ++ { ++ bfd_vma idx; ++ if (htab->elf.splt != NULL) ++ idx = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; ++ else ++ idx = h->plt.offset / PLT_ENTRY_SIZE; ++ ++ got_off = sec_addr (htab->elf.sgotplt) ++ + GOTPLT_HEADER_SIZE ++ + (idx * GOT_ENTRY_SIZE) ++ - sec_addr (htab->elf.sgot); ++ } ++ relocation = got_off + sec_addr (got); ++ } ++ ++ if (r_type == R_LARCH_GOT_PC_LO12) ++ relocation &= (bfd_vma)0xfff; ++ else if (r_type == R_LARCH_GOT64_PC_LO20 ++ || r_type == R_LARCH_GOT64_PC_HI12) ++ RELOCATE_CALC_PC64_HI32 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_TLS_LE_HI20: ++ case R_LARCH_TLS_LE_LO12: ++ case R_LARCH_TLS_LE64_LO20: ++ case R_LARCH_TLS_LE64_HI12: ++ BFD_ASSERT (resolved_local && elf_hash_table (info)->tls_sec); ++ ++ relocation -= elf_hash_table (info)->tls_sec->vma; ++ break; ++ ++ /* TLS IE LD/GD process separately is troublesome. ++ When a symbol is both ie and LD/GD, h->got.off |= 1 ++ make only one type be relocated. We must use ++ h->got.offset |= 1 and h->got.offset |= 2 ++ diff IE and LD/GD. And all (got_off & (~(bfd_vma)1)) ++ (IE LD/GD and reusable GOT reloc) must change to ++ (got_off & (~(bfd_vma)3)), beause we use lowest 2 bits ++ as a tag. ++ Now, LD and GD is both GOT_TLS_GD type, LD seems to ++ can be omitted. */ ++ case R_LARCH_TLS_IE_PC_HI20: ++ case R_LARCH_TLS_IE_HI20: ++ case R_LARCH_TLS_LD_PC_HI20: ++ case R_LARCH_TLS_LD_HI20: ++ case R_LARCH_TLS_GD_PC_HI20: ++ case R_LARCH_TLS_GD_HI20: ++ BFD_ASSERT (rel->r_addend == 0); ++ unresolved_reloc = FALSE; ++ ++ if (r_type == R_LARCH_TLS_IE_PC_HI20 ++ || r_type == R_LARCH_TLS_IE_HI20) ++ is_ie = TRUE; ++ ++ bfd_vma got_off = 0; ++ if (h != NULL) ++ { ++ got_off = h->got.offset; ++ h->got.offset |= 1; ++ } ++ else ++ { ++ got_off = local_got_offsets[r_symndx]; ++ local_got_offsets[r_symndx] |= 1; ++ } ++ ++ BFD_ASSERT (got_off != MINUS_ONE); ++ ++ ie_off = 0; ++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx); ++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE)) ++ ie_off = 2 * GOT_ENTRY_SIZE; ++ ++ if ((got_off & 1) == 0) ++ { ++ Elf_Internal_Rela rela; ++ asection *relgot = htab->elf.srelgot; ++ bfd_vma tls_block_off = 0; ++ ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ BFD_ASSERT (elf_hash_table (info)->tls_sec); ++ tls_block_off = relocation ++ - elf_hash_table (info)->tls_sec->vma; ++ } ++ ++ if (tls_type & GOT_TLS_GD) ++ { ++ rela.r_offset = sec_addr (got) + got_off; ++ rela.r_addend = 0; ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ /* Local sym, used in exec, set module id 1. */ ++ if (bfd_link_executable (info)) ++ bfd_put_NN (output_bfd, 1, got->contents + got_off); ++ else ++ { ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_DTPMODNN); ++ loongarch_elf_append_rela (output_bfd, relgot, &rela); ++ } ++ ++ bfd_put_NN (output_bfd, tls_block_off, ++ got->contents + got_off + GOT_ENTRY_SIZE); ++ } ++ /* Dynamic resolved. */ ++ else ++ { ++ /* Dynamic relocate module id. */ ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_DTPMODNN); ++ loongarch_elf_append_rela (output_bfd, relgot, &rela); ++ ++ /* Dynamic relocate offset of block. */ ++ rela.r_offset += GOT_ENTRY_SIZE; ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_DTPRELNN); ++ loongarch_elf_append_rela (output_bfd, relgot, &rela); ++ } ++ } ++ if (tls_type & GOT_TLS_IE) ++ { ++ rela.r_offset = sec_addr (got) + got_off + ie_off; ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ /* Local sym, used in exec, set module id 1. */ ++ if (!bfd_link_executable (info)) ++ { ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_TLS_TPRELNN); ++ rela.r_addend = tls_block_off; ++ loongarch_elf_append_rela (output_bfd, relgot, &rela); ++ } ++ ++ bfd_put_NN (output_bfd, tls_block_off, ++ got->contents + got_off + ie_off); ++ } ++ /* Dynamic resolved. */ ++ else ++ { ++ /* Dynamic relocate offset of block. */ ++ rela.r_info = ELFNN_R_INFO (h->dynindx, ++ R_LARCH_TLS_TPRELNN); ++ rela.r_addend = 0; ++ loongarch_elf_append_rela (output_bfd, relgot, &rela); ++ } ++ } ++ } ++ relocation = (got_off & (~(bfd_vma)1)) + sec_addr (got) ++ + (is_ie ? ie_off : 0); ++ ++ if (r_type == R_LARCH_TLS_LD_PC_HI20 ++ || r_type == R_LARCH_TLS_GD_PC_HI20 ++ || r_type == R_LARCH_TLS_IE_PC_HI20) ++ RELOCATE_CALC_PC32_HI20 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_TLS_IE_PC_LO12: ++ case R_LARCH_TLS_IE64_PC_LO20: ++ case R_LARCH_TLS_IE64_PC_HI12: ++ case R_LARCH_TLS_IE_LO12: ++ case R_LARCH_TLS_IE64_LO20: ++ case R_LARCH_TLS_IE64_HI12: ++ unresolved_reloc = FALSE; ++ ++ if (h) ++ relocation = sec_addr (got) + (h->got.offset & (~(bfd_vma)3)); ++ else ++ relocation = sec_addr (got) ++ + (local_got_offsets[r_symndx] & (~(bfd_vma)3)); ++ ++ tls_type = _bfd_loongarch_elf_tls_type (input_bfd, h, r_symndx); ++ /* Use both TLS_GD and TLS_IE. */ ++ if ((tls_type & GOT_TLS_GD) && (tls_type & GOT_TLS_IE)) ++ relocation += 2 * GOT_ENTRY_SIZE; ++ ++ if (r_type == R_LARCH_TLS_IE_PC_LO12) ++ relocation &= (bfd_vma)0xfff; ++ else if (r_type == R_LARCH_TLS_IE64_PC_LO20 ++ || r_type == R_LARCH_TLS_IE64_PC_HI12) ++ RELOCATE_CALC_PC64_HI32 (relocation, pc); ++ ++ break; ++ ++ case R_LARCH_RELAX: ++ break; ++ ++ default: ++ break; ++ } ++ ++ if (fatal) ++ break; ++ ++ do ++ { ++ /* 'unresolved_reloc' means we haven't done it yet. ++ We need help of dynamic linker to fix this memory location up. */ ++ if (!unresolved_reloc) ++ break; ++ ++ if (_bfd_elf_section_offset (output_bfd, info, input_section, ++ rel->r_offset) == MINUS_ONE) ++ /* WHY? May because it's invalid so skip checking. ++ But why dynamic reloc a invalid section? */ ++ break; ++ ++ if (input_section->output_section->flags & SEC_DEBUGGING) ++ { ++ fatal = (loongarch_reloc_is_fatal ++ (info, input_bfd, input_section, rel, howto, ++ bfd_reloc_dangerous, is_undefweak, name, ++ "Seems dynamic linker not process " ++ "sections 'SEC_DEBUGGING'.")); ++ } ++ if (!is_dyn) ++ break; ++ ++ if ((info->flags & DF_TEXTREL) == 0) ++ if (input_section->output_section->flags & SEC_READONLY) ++ info->flags |= DF_TEXTREL; ++ } ++ while (0); ++ ++ if (fatal) ++ break; ++ ++ loongarch_record_one_reloc (input_bfd, input_section, r_type, ++ rel->r_offset, sym, h, rel->r_addend); ++ ++ if (r != bfd_reloc_continue) ++ r = perform_relocation (rel, input_section, howto, relocation, ++ input_bfd, contents); ++ ++ switch (r) ++ { ++ case bfd_reloc_dangerous: ++ case bfd_reloc_continue: ++ case bfd_reloc_ok: ++ continue; ++ ++ case bfd_reloc_overflow: ++ /* Overflow value can't be filled in. */ ++ loongarch_dump_reloc_record (info->callbacks->info); ++ info->callbacks->reloc_overflow ++ (info, h ? &h->root : NULL, name, howto->name, rel->r_addend, ++ input_bfd, input_section, rel->r_offset); ++ break; ++ ++ case bfd_reloc_outofrange: ++ /* Stack state incorrect. */ ++ loongarch_dump_reloc_record (info->callbacks->info); ++ info->callbacks->info ++ ("%X%H: Internal stack state is incorrect.\n" ++ "Want to push to full stack or pop from empty stack?\n", ++ input_bfd, input_section, rel->r_offset); ++ break; ++ ++ case bfd_reloc_notsupported: ++ info->callbacks->info ("%X%H: Unknown relocation type.\n", input_bfd, ++ input_section, rel->r_offset); ++ break; ++ ++ default: ++ info->callbacks->info ("%X%H: Internal: unknown error.\n", input_bfd, ++ input_section, rel->r_offset); ++ break; ++ } ++ ++ fatal = TRUE; ++ } ++ ++ return !fatal; ++} ++ ++/* Finish up dynamic symbol handling. We set the contents of various ++ dynamic sections here. */ ++ ++static bfd_boolean ++loongarch_elf_finish_dynamic_symbol (bfd *output_bfd, ++ struct bfd_link_info *info, ++ struct elf_link_hash_entry *h, ++ Elf_Internal_Sym *sym) ++{ ++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info); ++ const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); ++ ++ if (h->plt.offset != MINUS_ONE) ++ { ++ size_t i, plt_idx; ++ asection *plt, *gotplt, *relplt; ++ bfd_vma got_address; ++ uint32_t plt_entry[PLT_ENTRY_INSNS]; ++ bfd_byte *loc; ++ Elf_Internal_Rela rela; ++ ++ if (htab->elf.splt) ++ { ++ BFD_ASSERT ((h->type == STT_GNU_IFUNC ++ && SYMBOL_REFERENCES_LOCAL (info, h)) ++ || h->dynindx != -1); ++ ++ plt = htab->elf.splt; ++ gotplt = htab->elf.sgotplt; ++ if (h->type == STT_GNU_IFUNC && SYMBOL_REFERENCES_LOCAL (info, h)) ++ relplt = htab->elf.srelgot; ++ else ++ relplt = htab->elf.srelplt; ++ plt_idx = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; ++ got_address = ++ sec_addr (gotplt) + GOTPLT_HEADER_SIZE + plt_idx * GOT_ENTRY_SIZE; ++ } ++ else /* if (htab->elf.iplt) */ ++ { ++ BFD_ASSERT (h->type == STT_GNU_IFUNC ++ && SYMBOL_REFERENCES_LOCAL (info, h)); ++ ++ plt = htab->elf.iplt; ++ gotplt = htab->elf.igotplt; ++ relplt = htab->elf.irelplt; ++ plt_idx = h->plt.offset / PLT_ENTRY_SIZE; ++ got_address = sec_addr (gotplt) + plt_idx * GOT_ENTRY_SIZE; ++ } ++ ++ /* Find out where the .plt entry should go. */ ++ loc = plt->contents + h->plt.offset; ++ ++ /* Fill in the PLT entry itself. */ ++ if (!loongarch_make_plt_entry (got_address, ++ sec_addr (plt) + h->plt.offset, ++ plt_entry)) ++ return FALSE; ++ ++ for (i = 0; i < PLT_ENTRY_INSNS; i++) ++ bfd_put_32 (output_bfd, plt_entry[i], loc + 4 * i); ++ ++ /* Fill in the initial value of the got.plt entry. */ ++ loc = gotplt->contents + (got_address - sec_addr (gotplt)); ++ bfd_put_NN (output_bfd, sec_addr (plt), loc); ++ ++ rela.r_offset = got_address; ++ ++ /* TRUE if this is a PLT reference to a local IFUNC. */ ++ if (PLT_LOCAL_IFUNC_P (info, h) ++ && (relplt == htab->elf.srelgot ++ || relplt == htab->elf.irelplt)) ++ { ++ { ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE); ++ rela.r_addend = (h->root.u.def.value ++ + h->root.u.def.section->output_section->vma ++ + h->root.u.def.section->output_offset); ++ } ++ ++ /* Find the space after dyn sort. */ ++ { ++ Elf_Internal_Rela *dyn = (Elf_Internal_Rela *)relplt->contents; ++ bfd_boolean fill = FALSE; ++ for (;dyn < dyn + relplt->size / sizeof (*dyn); dyn++) ++ { ++ if (0 == dyn->r_offset) ++ { ++ bed->s->swap_reloca_out (output_bfd, &rela, ++ (bfd_byte *)dyn); ++ relplt->reloc_count++; ++ fill = TRUE; ++ break; ++ } ++ } ++ BFD_ASSERT (fill); ++ } ++ ++ } ++ else ++ { ++ /* Fill in the entry in the rela.plt section. */ ++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_JUMP_SLOT); ++ rela.r_addend = 0; ++ loc = relplt->contents + plt_idx * sizeof (ElfNN_External_Rela); ++ bed->s->swap_reloca_out (output_bfd, &rela, loc); ++ } ++ ++ if (!h->def_regular) ++ { ++ /* Mark the symbol as undefined, rather than as defined in ++ the .plt section. Leave the value alone. */ ++ sym->st_shndx = SHN_UNDEF; ++ /* If the symbol is weak, we do need to clear the value. ++ Otherwise, the PLT entry would provide a definition for ++ the symbol even if the symbol wasn't defined anywhere, ++ and so the symbol would never be NULL. */ ++ if (!h->ref_regular_nonweak) ++ sym->st_value = 0; ++ } ++ } ++ ++ if (h->got.offset != MINUS_ONE ++ /* TLS got entry have been handled in elf_relocate_section. */ ++ && !(loongarch_elf_hash_entry (h)->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) ++ /* Have allocated got entry but not allocated rela before. */ ++ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) ++ { ++ asection *sgot, *srela; ++ Elf_Internal_Rela rela; ++ bfd_vma off = h->got.offset & ~(bfd_vma)1; ++ ++ /* This symbol has an entry in the GOT. Set it up. */ ++ sgot = htab->elf.sgot; ++ srela = htab->elf.srelgot; ++ BFD_ASSERT (sgot && srela); ++ ++ rela.r_offset = sec_addr (sgot) + off; ++ ++ if (h->def_regular ++ && h->type == STT_GNU_IFUNC) ++ { ++ if(h->plt.offset == MINUS_ONE) ++ { ++ if (htab->elf.splt == NULL) ++ srela = htab->elf.irelplt; ++ ++ if (SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ asection *sec = h->root.u.def.section; ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_IRELATIVE); ++ rela.r_addend = h->root.u.def.value + sec->output_section->vma ++ + sec->output_offset; ++ bfd_put_NN (output_bfd, 0, sgot->contents + off); ++ } ++ else ++ { ++ BFD_ASSERT (h->dynindx != -1); ++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN); ++ rela.r_addend = 0; ++ bfd_put_NN (output_bfd, (bfd_vma) 0, sgot->contents + off); ++ } ++ } ++ else if(bfd_link_pic (info)) ++ { ++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN); ++ rela.r_addend = 0; ++ bfd_put_NN (output_bfd, rela.r_addend, sgot->contents + off); ++ } ++ else ++ { ++ asection *plt; ++ /* For non-shared object, we can't use .got.plt, which ++ contains the real function address if we need pointer ++ equality. We load the GOT entry with the PLT entry. */ ++ plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; ++ bfd_put_NN (output_bfd, ++ (plt->output_section->vma ++ + plt->output_offset ++ + h->plt.offset), ++ sgot->contents + off); ++ return TRUE; ++ } ++ } ++ else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) ++ { ++ asection *sec = h->root.u.def.section; ++ rela.r_info = ELFNN_R_INFO (0, R_LARCH_RELATIVE); ++ rela.r_addend = (h->root.u.def.value + sec->output_section->vma ++ + sec->output_offset); ++ } ++ else ++ { ++ BFD_ASSERT (h->dynindx != -1); ++ rela.r_info = ELFNN_R_INFO (h->dynindx, R_LARCH_NN); ++ rela.r_addend = 0; ++ } ++ ++ loongarch_elf_append_rela (output_bfd, srela, &rela); ++ } ++ ++ /* Mark some specially defined symbols as absolute. */ ++ if (h == htab->elf.hdynamic || h == htab->elf.hgot || h == htab->elf.hplt) ++ sym->st_shndx = SHN_ABS; ++ ++ return TRUE; ++} ++ ++/* Finish up the dynamic sections. */ ++ ++static bfd_boolean ++loongarch_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, bfd *dynobj, ++ asection *sdyn) ++{ ++ struct loongarch_elf_link_hash_table *htab = loongarch_elf_hash_table (info); ++ const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); ++ size_t dynsize = bed->s->sizeof_dyn, skipped_size = 0; ++ bfd_byte *dyncon, *dynconend; ++ ++ dynconend = sdyn->contents + sdyn->size; ++ for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) ++ { ++ Elf_Internal_Dyn dyn; ++ asection *s; ++ int skipped = 0; ++ ++ bed->s->swap_dyn_in (dynobj, dyncon, &dyn); ++ ++ switch (dyn.d_tag) ++ { ++ case DT_PLTGOT: ++ s = htab->elf.sgotplt; ++ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; ++ break; ++ case DT_JMPREL: ++ s = htab->elf.srelplt; ++ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; ++ break; ++ case DT_PLTRELSZ: ++ s = htab->elf.srelplt; ++ dyn.d_un.d_val = s->size; ++ break; ++ case DT_TEXTREL: ++ if ((info->flags & DF_TEXTREL) == 0) ++ skipped = 1; ++ break; ++ case DT_FLAGS: ++ if ((info->flags & DF_TEXTREL) == 0) ++ dyn.d_un.d_val &= ~DF_TEXTREL; ++ break; ++ } ++ if (skipped) ++ skipped_size += dynsize; ++ else ++ bed->s->swap_dyn_out (output_bfd, &dyn, dyncon - skipped_size); ++ } ++ /* Wipe out any trailing entries if we shifted down a dynamic tag. */ ++ memset (dyncon - skipped_size, 0, skipped_size); ++ return TRUE; ++} ++ ++/* Finish up local dynamic symbol handling. We set the contents of ++ various dynamic sections here. */ ++ ++static bfd_boolean ++elfNN_loongarch_finish_local_dynamic_symbol (void **slot, void *inf) ++{ ++ struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) *slot; ++ struct bfd_link_info *info = (struct bfd_link_info *) inf; ++ ++ return loongarch_elf_finish_dynamic_symbol (info->output_bfd, info, h, NULL); ++} ++ ++static bfd_boolean ++loongarch_elf_finish_dynamic_sections (bfd *output_bfd, ++ struct bfd_link_info *info) ++{ ++ bfd *dynobj; ++ asection *sdyn, *plt, *gotplt = NULL; ++ struct loongarch_elf_link_hash_table *htab; ++ ++ htab = loongarch_elf_hash_table (info); ++ BFD_ASSERT (htab); ++ dynobj = htab->elf.dynobj; ++ sdyn = bfd_get_linker_section (dynobj, ".dynamic"); ++ ++ if (elf_hash_table (info)->dynamic_sections_created) ++ { ++ BFD_ASSERT (htab->elf.splt && sdyn); ++ ++ if (!loongarch_finish_dyn (output_bfd, info, dynobj, sdyn)) ++ return FALSE; ++ } ++ ++ plt = htab->elf.splt; ++ gotplt = htab->elf.sgotplt; ++ ++ if (plt && 0 < plt->size) ++ { ++ size_t i; ++ uint32_t plt_header[PLT_HEADER_INSNS]; ++ if (!loongarch_make_plt_header (sec_addr (gotplt), sec_addr (plt), ++ plt_header)) ++ return FALSE; ++ ++ for (i = 0; i < PLT_HEADER_INSNS; i++) ++ bfd_put_32 (output_bfd, plt_header[i], plt->contents + 4 * i); ++ ++ elf_section_data (plt->output_section)->this_hdr.sh_entsize = ++ PLT_ENTRY_SIZE; ++ } ++ ++ if (htab->elf.sgotplt) ++ { ++ asection *output_section = htab->elf.sgotplt->output_section; ++ ++ if (bfd_is_abs_section (output_section)) ++ { ++ _bfd_error_handler (_("discarded output section: `%pA'"), ++ htab->elf.sgotplt); ++ return FALSE; ++ } ++ ++ if (0 < htab->elf.sgotplt->size) ++ { ++ /* Write the first two entries in .got.plt, needed for the dynamic ++ linker. */ ++ bfd_put_NN (output_bfd, MINUS_ONE, htab->elf.sgotplt->contents); ++ ++ bfd_put_NN (output_bfd, (bfd_vma) 0, ++ htab->elf.sgotplt->contents + GOT_ENTRY_SIZE); ++ } ++ ++ elf_section_data (output_section)->this_hdr.sh_entsize = GOT_ENTRY_SIZE; ++ } ++ ++ if (htab->elf.sgot) ++ { ++ asection *output_section = htab->elf.sgot->output_section; ++ ++ if (0 < htab->elf.sgot->size) ++ { ++ /* Set the first entry in the global offset table to the address of ++ the dynamic section. */ ++ bfd_vma val = sdyn ? sec_addr (sdyn) : 0; ++ bfd_put_NN (output_bfd, val, htab->elf.sgot->contents); ++ } ++ ++ elf_section_data (output_section)->this_hdr.sh_entsize = GOT_ENTRY_SIZE; ++ } ++ ++ /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ ++ htab_traverse (htab->loc_hash_table, ++ (void *) elfNN_loongarch_finish_local_dynamic_symbol, info); ++ ++ return TRUE; ++} ++ ++/* Return address for Ith PLT stub in section PLT, for relocation REL ++ or (bfd_vma) -1 if it should not be included. */ ++ ++static bfd_vma ++loongarch_elf_plt_sym_val (bfd_vma i, const asection *plt, ++ const arelent *rel ATTRIBUTE_UNUSED) ++{ ++ return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE; ++} ++ ++static enum elf_reloc_type_class ++loongarch_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, ++ const asection *rel_sec ATTRIBUTE_UNUSED, ++ const Elf_Internal_Rela *rela) ++{ ++ struct loongarch_elf_link_hash_table *htab; ++ htab = loongarch_elf_hash_table (info); ++ ++ if (htab->elf.dynsym != NULL && htab->elf.dynsym->contents != NULL) ++ { ++ /* Check relocation against STT_GNU_IFUNC symbol if there are ++ dynamic symbols. */ ++ bfd *abfd = info->output_bfd; ++ const struct elf_backend_data *bed = get_elf_backend_data (abfd); ++ unsigned long r_symndx = ELFNN_R_SYM (rela->r_info); ++ if (r_symndx != STN_UNDEF) ++ { ++ Elf_Internal_Sym sym; ++ if (!bed->s->swap_symbol_in (abfd, ++ htab->elf.dynsym->contents ++ + r_symndx * bed->s->sizeof_sym, ++ 0, &sym)) ++ { ++ /* xgettext:c-format */ ++ _bfd_error_handler (_("%pB symbol number %lu references" ++ " nonexistent SHT_SYMTAB_SHNDX section"), ++ abfd, r_symndx); ++ /* Ideally an error class should be returned here. */ ++ } ++ else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) ++ return reloc_class_ifunc; ++ } ++ } ++ ++ switch (ELFNN_R_TYPE (rela->r_info)) ++ { ++ case R_LARCH_IRELATIVE: ++ return reloc_class_ifunc; ++ case R_LARCH_RELATIVE: ++ return reloc_class_relative; ++ case R_LARCH_JUMP_SLOT: ++ return reloc_class_plt; ++ case R_LARCH_COPY: ++ return reloc_class_copy; ++ default: ++ return reloc_class_normal; ++ } ++} ++ ++/* Copy the extra info we tack onto an elf_link_hash_entry. */ ++ ++static void ++loongarch_elf_copy_indirect_symbol (struct bfd_link_info *info, ++ struct elf_link_hash_entry *dir, ++ struct elf_link_hash_entry *ind) ++{ ++ struct elf_link_hash_entry *edir, *eind; ++ ++ edir = dir; ++ eind = ind; ++ ++ if (eind->dyn_relocs != NULL) ++ { ++ if (edir->dyn_relocs != NULL) ++ { ++ struct elf_dyn_relocs **pp; ++ struct elf_dyn_relocs *p; ++ ++ /* Add reloc counts against the indirect sym to the direct sym ++ list. Merge any entries against the same section. */ ++ for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) ++ { ++ struct elf_dyn_relocs *q; ++ ++ for (q = edir->dyn_relocs; q != NULL; q = q->next) ++ if (q->sec == p->sec) ++ { ++ q->pc_count += p->pc_count; ++ q->count += p->count; ++ *pp = p->next; ++ break; ++ } ++ if (q == NULL) ++ pp = &p->next; ++ } ++ *pp = edir->dyn_relocs; ++ } ++ ++ edir->dyn_relocs = eind->dyn_relocs; ++ eind->dyn_relocs = NULL; ++ } ++ ++ if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount < 0) ++ { ++ loongarch_elf_hash_entry(edir)->tls_type ++ = loongarch_elf_hash_entry(eind)->tls_type; ++ loongarch_elf_hash_entry(eind)->tls_type = GOT_UNKNOWN; ++ } ++ _bfd_elf_link_hash_copy_indirect (info, dir, ind); ++} ++ ++#define PRSTATUS_SIZE 0x1d8 ++#define PRSTATUS_OFFSET_PR_CURSIG 0xc ++#define PRSTATUS_OFFSET_PR_PID 0x20 ++#define ELF_GREGSET_T_SIZE 0x168 ++#define PRSTATUS_OFFSET_PR_REG 0x70 ++ ++/* Support for core dump NOTE sections. */ ++ ++static bfd_boolean ++loongarch_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) ++{ ++ switch (note->descsz) ++ { ++ default: ++ return FALSE; ++ ++ /* The sizeof (struct elf_prstatus) on Linux/LoongArch. */ ++ case PRSTATUS_SIZE: ++ /* pr_cursig */ ++ elf_tdata (abfd)->core->signal = ++ bfd_get_16 (abfd, note->descdata + PRSTATUS_OFFSET_PR_CURSIG); ++ ++ /* pr_pid */ ++ elf_tdata (abfd)->core->lwpid = ++ bfd_get_32 (abfd, note->descdata + PRSTATUS_OFFSET_PR_PID); ++ break; ++ } ++ ++ /* Make a ".reg/999" section. */ ++ return _bfd_elfcore_make_pseudosection (abfd, ".reg", ELF_GREGSET_T_SIZE, ++ note->descpos ++ + PRSTATUS_OFFSET_PR_REG); ++} ++ ++#define PRPSINFO_SIZE 0x88 ++#define PRPSINFO_OFFSET_PR_PID 0x18 ++#define PRPSINFO_OFFSET_PR_FNAME 0x28 ++#define PRPSINFO_SIZEOF_PR_FNAME 0x10 ++#define PRPSINFO_OFFSET_PR_PS_ARGS 0x38 ++#define PRPSINFO_SIZEOF_PR_PS_ARGS 0x50 ++ ++static bfd_boolean ++loongarch_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) ++{ ++ switch (note->descsz) ++ { ++ default: ++ return FALSE; ++ ++ /* The sizeof (prpsinfo_t) on Linux/LoongArch. */ ++ case PRPSINFO_SIZE: ++ /* pr_pid */ ++ elf_tdata (abfd)->core->pid = ++ bfd_get_32 (abfd, note->descdata + PRPSINFO_OFFSET_PR_PID); ++ ++ /* pr_fname */ ++ elf_tdata (abfd)->core->program = ++ _bfd_elfcore_strndup (abfd, note->descdata + PRPSINFO_OFFSET_PR_FNAME, ++ PRPSINFO_SIZEOF_PR_FNAME); ++ ++ /* pr_psargs */ ++ elf_tdata (abfd)->core->command = ++ _bfd_elfcore_strndup (abfd, note->descdata + PRPSINFO_OFFSET_PR_PS_ARGS, ++ PRPSINFO_SIZEOF_PR_PS_ARGS); ++ break; ++ } ++ ++ /* Note that for some reason, a spurious space is tacked ++ onto the end of the args in some (at least one anyway) ++ implementations, so strip it off if it exists. */ ++ ++ { ++ char *command = elf_tdata (abfd)->core->command; ++ int n = strlen (command); ++ ++ if (0 < n && command[n - 1] == ' ') ++ command[n - 1] = '\0'; ++ } ++ ++ return TRUE; ++} ++ ++/* Set the right mach type. */ ++static bfd_boolean ++loongarch_elf_object_p (bfd *abfd) ++{ ++ /* There are only two mach types in LoongArch currently. */ ++ if (strcmp (abfd->xvec->name, "elf64-loongarch") == 0) ++ bfd_default_set_arch_mach (abfd, bfd_arch_loongarch, bfd_mach_loongarch64); ++ else ++ bfd_default_set_arch_mach (abfd, bfd_arch_loongarch, bfd_mach_loongarch32); ++ return TRUE; ++} ++ ++static asection * ++loongarch_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, ++ Elf_Internal_Rela *rel, ++ struct elf_link_hash_entry *h, ++ Elf_Internal_Sym *sym) ++{ ++ if (h != NULL) ++ switch (ELFNN_R_TYPE (rel->r_info)) ++ { ++ case R_LARCH_GNU_VTINHERIT: ++ case R_LARCH_GNU_VTENTRY: ++ return NULL; ++ } ++ ++ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); ++} ++ ++/* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For ++ executable PLT slots where the executable never takes the address of those ++ functions, the function symbols are not added to the hash table. */ ++ ++static bfd_boolean ++elf_loongarch64_hash_symbol (struct elf_link_hash_entry *h) ++{ ++ if (h->plt.offset != (bfd_vma) -1 ++ && !h->def_regular ++ && !h->pointer_equality_needed) ++ return FALSE; ++ ++ return _bfd_elf_hash_symbol (h); ++} ++ ++#define TARGET_LITTLE_SYM loongarch_elfNN_vec ++#define TARGET_LITTLE_NAME "elfNN-loongarch" ++#define ELF_ARCH bfd_arch_loongarch ++#define ELF_TARGET_ID LARCH_ELF_DATA ++#define ELF_MACHINE_CODE EM_LOONGARCH ++#define ELF_MAXPAGESIZE 0x4000 ++#define bfd_elfNN_bfd_reloc_type_lookup loongarch_reloc_type_lookup ++#define bfd_elfNN_bfd_link_hash_table_create \ ++ loongarch_elf_link_hash_table_create ++#define bfd_elfNN_bfd_reloc_name_lookup loongarch_reloc_name_lookup ++#define elf_info_to_howto_rel NULL /* Fall through to elf_info_to_howto. */ ++#define elf_info_to_howto loongarch_info_to_howto_rela ++#define bfd_elfNN_bfd_merge_private_bfd_data \ ++ elfNN_loongarch_merge_private_bfd_data ++ ++#define elf_backend_reloc_type_class loongarch_reloc_type_class ++#define elf_backend_copy_indirect_symbol loongarch_elf_copy_indirect_symbol ++#define elf_backend_create_dynamic_sections \ ++ loongarch_elf_create_dynamic_sections ++#define elf_backend_check_relocs loongarch_elf_check_relocs ++#define elf_backend_adjust_dynamic_symbol loongarch_elf_adjust_dynamic_symbol ++#define elf_backend_size_dynamic_sections loongarch_elf_size_dynamic_sections ++#define elf_backend_relocate_section loongarch_elf_relocate_section ++#define elf_backend_finish_dynamic_symbol loongarch_elf_finish_dynamic_symbol ++#define elf_backend_finish_dynamic_sections \ ++ loongarch_elf_finish_dynamic_sections ++#define elf_backend_object_p loongarch_elf_object_p ++#define elf_backend_gc_mark_hook loongarch_elf_gc_mark_hook ++#define elf_backend_plt_sym_val loongarch_elf_plt_sym_val ++#define elf_backend_grok_prstatus loongarch_elf_grok_prstatus ++#define elf_backend_grok_psinfo loongarch_elf_grok_psinfo ++#define elf_backend_hash_symbol elf_loongarch64_hash_symbol ++ ++#include "elfNN-target.h" +diff --git gdb-10.2/bfd/elfxx-loongarch.c gdb-10.2/bfd/elfxx-loongarch.c +new file mode 100644 +index 0000000..9f54b00 +--- /dev/null ++++ gdb-10.2/bfd/elfxx-loongarch.c +@@ -0,0 +1,1618 @@ ++/* LoongArch-specific support for ELF. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Based on LoongArch target. ++ ++ This file is part of BFD, the Binary File Descriptor library. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include "sysdep.h" ++#include "bfd.h" ++#include "libbfd.h" ++#include "elf-bfd.h" ++#include "elf/loongarch.h" ++#include "elfxx-loongarch.h" ++ ++#define ALL_ONES (~ (bfd_vma) 0) ++ ++typedef struct loongarch_reloc_howto_type_struct ++{ ++ /* The first must be reloc_howto_type! */ ++ reloc_howto_type howto; ++ bfd_reloc_code_real_type bfd_type; ++ bfd_boolean (*adjust_reloc_bits)(reloc_howto_type *, bfd_vma *); ++ const char *larch_reloc_type_name; ++} loongarch_reloc_howto_type; ++ ++#define LOONGARCH_DEFAULT_HOWTO(r_name) \ ++ { HOWTO (R_LARCH_##r_name, 0, 2, 32, FALSE, 0, complain_overflow_signed, \ ++ bfd_elf_generic_reloc, "R_LARCH_" #r_name, FALSE, 0, ALL_ONES, \ ++ FALSE), BFD_RELOC_LARCH_##r_name, NULL, NULL } ++ ++#define LOONGARCH_HOWTO(type, right, size, bits, pcrel, left, ovf, func, \ ++ name, inplace, src_mask, dst_mask, pcrel_off, btype, afunc,lname) \ ++ { HOWTO(type, right, size, bits, pcrel, left, ovf, func, name, \ ++ inplace, src_mask, dst_mask, pcrel_off), btype, afunc, lname } ++ ++#define LOONGARCH_EMPTY_HOWTO(C) \ ++ { EMPTY_HOWTO (C), BFD_RELOC_NONE, NULL, NULL } ++ ++static bfd_boolean ++reloc_bits (reloc_howto_type *howto, bfd_vma *val); ++static bfd_boolean ++reloc_bits_b16 (reloc_howto_type *howto, bfd_vma *fix_val); ++static bfd_boolean ++reloc_bits_b21 (reloc_howto_type *howto, bfd_vma *fix_val); ++static bfd_boolean ++reloc_bits_b26 (reloc_howto_type *howto, bfd_vma *val); ++ ++/* This does not include any relocation information, but should be ++ good enough for GDB or objdump to read the file. */ ++static loongarch_reloc_howto_type loongarch_howto_table[] = ++{ ++ /* No relocation. */ ++ LOONGARCH_HOWTO (R_LARCH_NONE, /* type (0). */ ++ 0, /* rightshift */ ++ 3, /* size */ ++ 0, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_NONE", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ /* 32 bit relocation. */ ++ LOONGARCH_HOWTO (R_LARCH_32, /* type (1). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_32", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ /* 64 bit relocation. */ ++ LOONGARCH_HOWTO (R_LARCH_64, /* type (2). */ ++ 0, /* rightshift */ ++ 4, /* size */ ++ 64, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_64", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_RELATIVE, /* type (3). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_RELATIVE", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* undefined? */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_COPY, /* type (4). */ ++ 0, /* rightshift */ ++ 3, /* this one is variable size */ ++ 0, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_bitfield, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_COPY", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* undefined? */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_JUMP_SLOT, /* type (5). */ ++ 0, /* rightshift */ ++ 4, /* size */ ++ 64, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_bitfield, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_JUMP_SLOT", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* undefined? */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ /* Dynamic TLS relocations. */ ++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD32, /* type (6). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_DTPMOD32", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_DTPMOD32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD64, /* type (7). */ ++ 0, /* rightshift */ ++ 4, /* size */ ++ 64, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_DTPMOD64", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_DTPMOD64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL32, /* type (8). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_DTPREL32", /* name */ ++ TRUE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_DTPREL32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL64, /* type (9). */ ++ 0, /* rightshift */ ++ 4, /* size */ ++ 64, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_DTPREL64", /* name */ ++ TRUE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_DTPREL64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_TPREL32, /* type (10). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_TPREL32", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_TPREL32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_TPREL64, /* type (11). */ ++ 0, /* rightshift */ ++ 4, /* size */ ++ 64, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_TLS_TPREL64", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_TPREL64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_IRELATIVE, /* type (12). */ ++ 0, /* rightshift */ ++ 2, /* size */ ++ 32, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_IRELATIVE", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* undefined? */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_EMPTY_HOWTO (13), ++ LOONGARCH_EMPTY_HOWTO (14), ++ LOONGARCH_EMPTY_HOWTO (15), ++ LOONGARCH_EMPTY_HOWTO (16), ++ LOONGARCH_EMPTY_HOWTO (17), ++ LOONGARCH_EMPTY_HOWTO (18), ++ LOONGARCH_EMPTY_HOWTO (19), ++ ++ LOONGARCH_HOWTO (R_LARCH_MARK_LA, /* type (20). */ ++ 0, /* rightshift. */ ++ 3, /* size. */ ++ 0, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_MARK_LA", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask. */ ++ 0, /* dst_mask. */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_MARK_LA, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_MARK_PCREL, /* type (21). */ ++ 0, /* rightshift. */ ++ 3, /* size. */ ++ 0, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_MARK_PCREL", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask. */ ++ 0, /* dst_mask. */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_MARK_PCREL, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_PUSH_PCREL, /* type (22). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 32, /* bitsize. */ ++ TRUE /* FIXME: somewhat use this. */, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_PUSH_PCREL", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0x03ffffff, /* src_mask. */ ++ 0x03ffffff, /* dst_mask. */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_PUSH_PCREL, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ /* type 23-37. */ ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_ABSOLUTE), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_DUP), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_GPREL), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_TPREL), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GOT), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GD), ++ LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_PLT_PCREL), ++ LOONGARCH_DEFAULT_HOWTO (SOP_ASSERT), ++ LOONGARCH_DEFAULT_HOWTO (SOP_NOT), ++ LOONGARCH_DEFAULT_HOWTO (SOP_SUB), ++ LOONGARCH_DEFAULT_HOWTO (SOP_SL), ++ LOONGARCH_DEFAULT_HOWTO (SOP_SR), ++ LOONGARCH_DEFAULT_HOWTO (SOP_ADD), ++ LOONGARCH_DEFAULT_HOWTO (SOP_AND), ++ LOONGARCH_DEFAULT_HOWTO (SOP_IF_ELSE), ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_5, /* type (38). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 5, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_10_5", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x7c00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U_10_12, /* type (39). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_unsigned, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_U_10_12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_12, /* type (40). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_10_12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16, /* type (41). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 16, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_10_16", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3fffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16_S2, /* type (42). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 16, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_10_16_S2", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3fffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2, /* bfd_reloc_code_real_type */ ++ reloc_bits_b16, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_5_20, /* type (43). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_5_20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, ++ /* type (44). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 21, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_0_5_10_16_S2", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0xfc0003e0, /* src_mask */ ++ 0xfc0003e0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2, ++ /* bfd_reloc_code_real_type */ ++ reloc_bits_b21, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, /* type (45). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 26, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_0_10_10_16_S2", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x03ffffff, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2, ++ /* bfd_reloc_code_real_type */ ++ reloc_bits_b26, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U, /* type (46). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 32, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_unsigned, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SOP_POP_32_S_U", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0xffffffff00000000, /* src_mask */ ++ 0x00000000ffffffff, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SOP_POP_32_U, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ADD8, /* type (47). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 8, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ADD8", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ADD8, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ADD16, /* type (48). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 16, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ADD16", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ADD16, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ADD24, /* type (49). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 24, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ADD24", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ADD24, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ADD32, /* type (50). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 32, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ADD32", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ADD32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ADD64, /* type (51). */ ++ 0, /* rightshift. */ ++ 4, /* size. */ ++ 64, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ADD64", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ADD64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SUB8, /* type (52). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 8, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SUB8", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SUB8, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SUB16, /* type (53). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 16, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SUB16", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SUB16, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SUB24, /* type (54). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 24, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SUB24", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SUB24, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SUB32, /* type (55). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 32, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SUB32", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SUB32, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_SUB64, /* type (56). */ ++ 0, /* rightshift. */ ++ 4, /* size. */ ++ 64, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_SUB64", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ ALL_ONES, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_SUB64, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GNU_VTINHERIT, /* type (57). */ ++ 0, /* rightshift. */ ++ 3, /* size. */ ++ 0, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GNU_VTINHERIT", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GNU_VTENTRY, /* type (58). */ ++ 0, /* rightshift. */ ++ 3, /* size. */ ++ 0, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ NULL, /* special_function. */ ++ "R_LARCH_GNU_VTENTRY", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_NONE, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_EMPTY_HOWTO (59), ++ LOONGARCH_EMPTY_HOWTO (60), ++ LOONGARCH_EMPTY_HOWTO (61), ++ LOONGARCH_EMPTY_HOWTO (62), ++ LOONGARCH_EMPTY_HOWTO (63), ++ ++ /* New reloc types. */ ++ LOONGARCH_HOWTO (R_LARCH_B16, /* type (64). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 16, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_B16", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0x3fffc00, /* src_mask */ ++ 0x3fffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_B16, /* bfd_reloc_code_real_type */ ++ reloc_bits_b16, /* adjust_reloc_bits */ ++ "b16"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_B21, /* type (65). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 21, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_B21", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0xfc0003e0, /* src_mask */ ++ 0xfc0003e0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_B21, /* bfd_reloc_code_real_type */ ++ reloc_bits_b21, /* adjust_reloc_bits */ ++ "b21"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_B26, /* type (66). */ ++ 2, /* rightshift. */ ++ 2, /* size. */ ++ 26, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_B26", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x03ffffff, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_B26, /* bfd_reloc_code_real_type */ ++ reloc_bits_b26, /* adjust_reloc_bits */ ++ "b26"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ABS_HI20, /* type (67). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ABS_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ABS_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "abs_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ABS_LO12, /* type (68). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_unsigned, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ABS_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ABS_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "abs_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ABS64_LO20, /* type (69). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ABS64_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ABS64_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "abs64_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_ABS64_HI12, /* type (70). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_ABS64_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_ABS64_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "abs64_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_PCALA_HI20, /* type (71). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_PCALA_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_PCALA_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "pc_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_PCALA_LO12, /* type (72). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_PCALA_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_PCALA_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "pc_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_PCALA64_LO20, /* type (73). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_PCALA64_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_PCALA64_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "pc64_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_PCALA64_HI12, /* type (74). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_PCALA64_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_PCALA64_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "pc64_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT_PC_HI20, /* type (75). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT_PC_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT_PC_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got_pc_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT_PC_LO12, /* type (76). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT_PC_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT_PC_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got_pc_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT64_PC_LO20, /* type (77). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT64_PC_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT64_PC_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got64_pc_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT64_PC_HI12, /* type (78). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT64_PC_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT64_PC_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got64_pc_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT_HI20, /* type (79). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT_LO12, /* type (80). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT64_LO20, /* type (81). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT64_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT64_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got64_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_GOT64_HI12, /* type (82). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_GOT64_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_GOT64_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "got64_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LE_HI20, /* type (83). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LE_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LE_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "le_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LE_LO12, /* type (84). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LE_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LE_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "le_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LE64_LO20, /* type (85). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LE64_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LE64_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "le64_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LE64_HI12, /* type (86). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LE64_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LE64_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "le64_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_PC_HI20, /* type (87). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE_PC_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE_PC_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie_pc_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_PC_LO12, /* type (88). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_unsigned, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE_PC_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE_PC_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie_pc_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_PC_LO20, /* type (89). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE64_PC_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie64_pc_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_PC_HI12, /* type (90). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE64_PC_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie64_pc_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_HI20, /* type (91). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE_LO12, /* type (92). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE_LO12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE_LO12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie_lo12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_LO20, /* type (93). */ ++ 32, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE64_LO20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE64_LO20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie64_lo20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_IE64_HI12, /* type (94). */ ++ 52, /* rightshift. */ ++ 2, /* size. */ ++ 12, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 10, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_IE64_HI12", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x3ffc00, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_IE64_HI12, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ie64_hi12"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LD_PC_HI20, /* type (95). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LD_PC_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LD_PC_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ld_pc_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_LD_HI20, /* type (96). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_LD_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_LD_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "ld_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_GD_PC_HI20, /* type (97). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_GD_PC_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_GD_PC_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "gd_pc_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_TLS_GD_HI20, /* type (98). */ ++ 12, /* rightshift. */ ++ 2, /* size. */ ++ 20, /* bitsize. */ ++ FALSE, /* pc_relative. */ ++ 5, /* bitpos. */ ++ complain_overflow_signed, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_TLS_GD_HI20", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0x1ffffe0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_TLS_GD_HI20, /* bfd_reloc_code_real_type */ ++ reloc_bits, /* adjust_reloc_bits */ ++ "gd_hi20"), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_32_PCREL, /* type (99). */ ++ 0, /* rightshift. */ ++ 2, /* size. */ ++ 32, /* bitsize. */ ++ TRUE, /* pc_relative. */ ++ 0, /* bitpos. */ ++ complain_overflow_dont, /* complain_on_overflow. */ ++ bfd_elf_generic_reloc, /* special_function. */ ++ "R_LARCH_32_PCREL", /* name. */ ++ FALSE, /* partial_inplace. */ ++ 0, /* src_mask */ ++ 0xffffffff, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_32_PCREL, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++ LOONGARCH_HOWTO (R_LARCH_RELAX, /* type (100). */ ++ 0, /* rightshift */ ++ 0, /* size */ ++ 0, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_LARCH_RELAX", /* name */ ++ FALSE, /* partial_inplace */ ++ 0, /* src_mask */ ++ 0, /* dst_mask */ ++ FALSE, /* pcrel_offset */ ++ BFD_RELOC_LARCH_RELAX, /* bfd_reloc_code_real_type */ ++ NULL, /* adjust_reloc_bits */ ++ NULL), /* larch_reloc_type_name */ ++ ++}; ++ ++reloc_howto_type * ++loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type) ++{ ++ if(r_type < R_LARCH_count) ++ { ++ /* For search table fast. */ ++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count); ++ ++ if (loongarch_howto_table[r_type].howto.type == r_type) ++ return (reloc_howto_type *)&loongarch_howto_table[r_type]; ++ ++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++) ++ if (loongarch_howto_table[i].howto.type == r_type) ++ return (reloc_howto_type *)&loongarch_howto_table[i]; ++ } ++ ++ (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"), ++ abfd, r_type); ++ bfd_set_error (bfd_error_bad_value); ++ return NULL; ++} ++ ++reloc_howto_type * ++loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) ++{ ++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count); ++ ++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++) ++ if (loongarch_howto_table[i].howto.name ++ && strcasecmp (loongarch_howto_table[i].howto.name, r_name) == 0) ++ return (reloc_howto_type *)&loongarch_howto_table[i]; ++ ++ (*_bfd_error_handler) (_("%pB: unsupported relocation type %s"), ++ abfd, r_name); ++ bfd_set_error (bfd_error_bad_value); ++ ++ return NULL; ++} ++ ++/* Cost so much. */ ++reloc_howto_type * ++loongarch_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, ++ bfd_reloc_code_real_type code) ++{ ++ BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count); ++ ++ /* Fast search for new reloc types. */ ++ if (BFD_RELOC_LARCH_B16 <= code && code < BFD_RELOC_LARCH_RELAX) ++ { ++ BFD_ASSERT (BFD_RELOC_LARCH_RELAX - BFD_RELOC_LARCH_B16 ++ == R_LARCH_RELAX - R_LARCH_B16); ++ loongarch_reloc_howto_type *ht = NULL; ++ ht = &loongarch_howto_table[code - BFD_RELOC_LARCH_B16 + R_LARCH_B16]; ++ BFD_ASSERT (ht->bfd_type == code); ++ return (reloc_howto_type *)ht; ++ } ++ ++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++) ++ if (loongarch_howto_table[i].bfd_type == code) ++ return (reloc_howto_type *)&loongarch_howto_table[i]; ++ ++ (*_bfd_error_handler) (_("%pB: unsupported bfd relocation type %#x"), ++ abfd, code); ++ bfd_set_error (bfd_error_bad_value); ++ ++ return NULL; ++} ++ ++bfd_reloc_code_real_type ++loongarch_larch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, ++ const char *l_r_name) ++{ ++ for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++) ++ { ++ loongarch_reloc_howto_type *lht = &loongarch_howto_table[i]; ++ if ((NULL != lht->larch_reloc_type_name) ++ && (0 == strcmp (lht->larch_reloc_type_name, l_r_name))) ++ return lht->bfd_type; ++ } ++ ++ (*_bfd_error_handler) (_("%pB: unsupported relocation type name %s"), ++ abfd, l_r_name); ++ bfd_set_error (bfd_error_bad_value); ++ return BFD_RELOC_NONE; ++} ++ ++ ++/* Functions for reloc bits field. ++ 1. Signed extend *fix_val. ++ 2. Return FALSE if overflow. */ ++ ++#define LARCH_RELOC_BFD_VMA_BIT_MASK(bitsize) \ ++ (~((((bfd_vma)0x1) << (bitsize)) - 1)) ++ ++/* Adjust val to perform insn ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5 ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12 ++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12 ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16 ++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20 ++ BFD_RELOC_LARCH_SOP_POP_32_U. */ ++static bfd_boolean ++reloc_bits (reloc_howto_type *howto, bfd_vma *fix_val) ++{ ++ bfd_signed_vma val = ((bfd_signed_vma)(*fix_val)) >> howto->rightshift; ++ ++ /* Perform insn bits field. */ ++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1); ++ val <<= howto->bitpos; ++ ++ *fix_val = (bfd_vma)val; ++ ++ return TRUE; ++} ++ ++/* Adjust val to perform insn ++ R_LARCH_SOP_POP_32_S_10_16_S2 ++ R_LARCH_B16. */ ++static bfd_boolean ++reloc_bits_b16 (reloc_howto_type *howto, bfd_vma *fix_val) ++{ ++ if (howto->complain_on_overflow != complain_overflow_signed) ++ return FALSE; ++ ++ bfd_signed_vma val = *fix_val; ++ ++ /* Judge whether 4 bytes align. */ ++ if (val & ((0x1UL << howto->rightshift) - 1)) ++ return FALSE; ++ ++ int bitsize = howto->bitsize + howto->rightshift; ++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1; ++ ++ /* If val < 0, sign bit is 1. */ ++ if (sig_bit) ++ { ++ /* Signed bits is 1. */ ++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val) ++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1)) ++ return FALSE; ++ } ++ else ++ { ++ /* Signed bits is 0. */ ++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val) ++ return FALSE; ++ } ++ ++ /* Perform insn bits field. */ ++ val >>= howto->rightshift; ++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1); ++ val <<= howto->bitpos; ++ ++ *fix_val = val; ++ ++ return TRUE; ++} ++ ++/* Reloc type : ++ R_LARCH_SOP_POP_32_S_0_5_10_16_S2 ++ R_LARCH_B21. */ ++static bfd_boolean ++reloc_bits_b21 (reloc_howto_type *howto, ++ bfd_vma *fix_val) ++{ ++ if (howto->complain_on_overflow != complain_overflow_signed) ++ return FALSE; ++ ++ bfd_signed_vma val = *fix_val; ++ ++ if (val & ((0x1UL << howto->rightshift) - 1)) ++ return FALSE; ++ ++ int bitsize = howto->bitsize + howto->rightshift; ++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1; ++ ++ /* If val < 0. */ ++ if (sig_bit) ++ { ++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val) ++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1)) ++ return FALSE; ++ } ++ else ++ { ++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val) ++ return FALSE; ++ } ++ ++ /* Perform insn bits field. */ ++ val >>= howto->rightshift; ++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1); ++ ++ /* Perform insn bits field. 15:0<<10, 20:16>>16. */ ++ val = ((val & 0xffff) << 10) | ((val >> 16) & 0x1f); ++ ++ *fix_val = val; ++ ++ return TRUE; ++} ++ ++/* Reloc type: ++ R_LARCH_SOP_POP_32_S_0_10_10_16_S2 ++ R_LARCH_B26. */ ++static bfd_boolean ++reloc_bits_b26 (reloc_howto_type *howto, ++ bfd_vma *fix_val) ++{ ++ /* Return FALSE if overflow. */ ++ if (howto->complain_on_overflow != complain_overflow_signed) ++ return FALSE; ++ ++ bfd_signed_vma val = *fix_val; ++ ++ if (val & ((0x1UL << howto->rightshift) - 1)) ++ return FALSE; ++ ++ int bitsize = howto->bitsize + howto->rightshift; ++ bfd_signed_vma sig_bit = (val >> (bitsize - 1)) & 0x1; ++ ++ /* If val < 0. */ ++ if (sig_bit) ++ { ++ if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val) ++ != LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1)) ++ return FALSE; ++ } ++ else ++ { ++ if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val) ++ return FALSE; ++ } ++ ++ /* Perform insn bits field. */ ++ val >>= howto->rightshift; ++ val = val & (((bfd_vma)0x1 << howto->bitsize) - 1); ++ ++ /* Perform insn bits field. 25:16>>16, 15:0<<10. */ ++ val = ((val & 0xffff) << 10) | ((val >> 16) & 0x3ff); ++ ++ *fix_val = val; ++ ++ return TRUE; ++} ++ ++bfd_boolean ++loongarch_adjust_reloc_bitsfield (reloc_howto_type *howto, ++ bfd_vma *fix_val) ++{ ++ BFD_ASSERT (((loongarch_reloc_howto_type *)howto)->adjust_reloc_bits); ++ return ((loongarch_reloc_howto_type *) ++ howto)->adjust_reloc_bits(howto, fix_val); ++} +diff --git gdb-10.2/bfd/elfxx-loongarch.h gdb-10.2/bfd/elfxx-loongarch.h +new file mode 100644 +index 0000000..49c1515 +--- /dev/null ++++ gdb-10.2/bfd/elfxx-loongarch.h +@@ -0,0 +1,45 @@ ++/* LoongArch-specific backend routines. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of BFD, the Binary File Descriptor library. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include "elf/common.h" ++#include "elf/internal.h" ++ ++extern reloc_howto_type * ++loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type); ++ ++extern reloc_howto_type * ++loongarch_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code); ++ ++extern reloc_howto_type * ++loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name); ++ ++extern bfd_reloc_code_real_type ++loongarch_larch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, ++ const char *l_r_name); ++ ++bfd_boolean loongarch_adjust_reloc_bitsfield (reloc_howto_type *howto, bfd_vma *fix_val); ++ ++/* TRUE if this is a PLT reference to a local IFUNC. */ ++#define PLT_LOCAL_IFUNC_P(INFO, H) \ ++ ((H)->dynindx == -1 \ ++ || ((bfd_link_executable (INFO) \ ++ || ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT) \ ++ && (H)->def_regular \ ++ && (H)->type == STT_GNU_IFUNC)) +diff --git gdb-10.2/bfd/libbfd.h gdb-10.2/bfd/libbfd.h +index 74d7e41..a3b40ec 100644 +--- gdb-10.2/bfd/libbfd.h ++++ gdb-10.2/bfd/libbfd.h +@@ -3396,6 +3396,86 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", + "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4", + "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4", + "BFD_RELOC_S12Z_OPR", ++ "BFD_RELOC_LARCH_TLS_DTPMOD32", ++ "BFD_RELOC_LARCH_TLS_DTPREL32", ++ "BFD_RELOC_LARCH_TLS_DTPMOD64", ++ "BFD_RELOC_LARCH_TLS_DTPREL64", ++ "BFD_RELOC_LARCH_TLS_TPREL32", ++ "BFD_RELOC_LARCH_TLS_TPREL64", ++ "BFD_RELOC_LARCH_MARK_LA", ++ "BFD_RELOC_LARCH_MARK_PCREL", ++ "BFD_RELOC_LARCH_SOP_PUSH_PCREL", ++ "BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE", ++ "BFD_RELOC_LARCH_SOP_PUSH_DUP", ++ "BFD_RELOC_LARCH_SOP_PUSH_GPREL", ++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL", ++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT", ++ "BFD_RELOC_LARCH_SOP_PUSH_TLS_GD", ++ "BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL", ++ "BFD_RELOC_LARCH_SOP_ASSERT", ++ "BFD_RELOC_LARCH_SOP_NOT", ++ "BFD_RELOC_LARCH_SOP_SUB", ++ "BFD_RELOC_LARCH_SOP_SL", ++ "BFD_RELOC_LARCH_SOP_SR", ++ "BFD_RELOC_LARCH_SOP_ADD", ++ "BFD_RELOC_LARCH_SOP_AND", ++ "BFD_RELOC_LARCH_SOP_IF_ELSE", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_5", ++ "BFD_RELOC_LARCH_SOP_POP_32_U_10_12", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_12", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_16", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_5_20", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2", ++ "BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2", ++ "BFD_RELOC_LARCH_SOP_POP_32_U", ++ "BFD_RELOC_LARCH_ADD8", ++ "BFD_RELOC_LARCH_ADD16", ++ "BFD_RELOC_LARCH_ADD24", ++ "BFD_RELOC_LARCH_ADD32", ++ "BFD_RELOC_LARCH_ADD64", ++ "BFD_RELOC_LARCH_SUB8", ++ "BFD_RELOC_LARCH_SUB16", ++ "BFD_RELOC_LARCH_SUB24", ++ "BFD_RELOC_LARCH_SUB32", ++ "BFD_RELOC_LARCH_SUB64", ++ "BFD_RELOC_LARCH_B16", ++ "BFD_RELOC_LARCH_B21", ++ "BFD_RELOC_LARCH_B26", ++ "BFD_RELOC_LARCH_ABS_HI20", ++ "BFD_RELOC_LARCH_ABS_LO12", ++ "BFD_RELOC_LARCH_ABS64_LO20", ++ "BFD_RELOC_LARCH_ABS64_HI12", ++ "BFD_RELOC_LARCH_PCALA_HI20", ++ "BFD_RELOC_LARCH_PCALA_LO12", ++ "BFD_RELOC_LARCH_PCALA64_LO20", ++ "BFD_RELOC_LARCH_PCALA64_HI12", ++ "BFD_RELOC_LARCH_GOT_PC_HI20", ++ "BFD_RELOC_LARCH_GOT_PC_LO12", ++ "BFD_RELOC_LARCH_GOT64_PC_LO20", ++ "BFD_RELOC_LARCH_GOT64_PC_HI12", ++ "BFD_RELOC_LARCH_GOT_HI20", ++ "BFD_RELOC_LARCH_GOT_LO12", ++ "BFD_RELOC_LARCH_GOT64_LO20", ++ "BFD_RELOC_LARCH_GOT64_HI12", ++ "BFD_RELOC_LARCH_TLS_LE_HI20", ++ "BFD_RELOC_LARCH_TLS_LE_LO12", ++ "BFD_RELOC_LARCH_TLS_LE64_LO20", ++ "BFD_RELOC_LARCH_TLS_LE64_HI12", ++ "BFD_RELOC_LARCH_TLS_IE_PC_HI20", ++ "BFD_RELOC_LARCH_TLS_IE_PC_LO12", ++ "BFD_RELOC_LARCH_TLS_IE64_PC_LO20", ++ "BFD_RELOC_LARCH_TLS_IE64_PC_HI12", ++ "BFD_RELOC_LARCH_TLS_IE_HI20", ++ "BFD_RELOC_LARCH_TLS_IE_LO12", ++ "BFD_RELOC_LARCH_TLS_IE64_LO20", ++ "BFD_RELOC_LARCH_TLS_IE64_HI12", ++ "BFD_RELOC_LARCH_TLS_LD_PC_HI20", ++ "BFD_RELOC_LARCH_TLS_LD_HI20", ++ "BFD_RELOC_LARCH_TLS_GD_PC_HI20", ++ "BFD_RELOC_LARCH_TLS_GD_HI20", ++ "BFD_RELOC_LARCH_32_PCREL", ++ "BFD_RELOC_LARCH_RELAX", + "@@overflow: BFD_RELOC_UNUSED@@", + }; + #endif +diff --git gdb-10.2/bfd/po/BLD-POTFILES.in gdb-10.2/bfd/po/BLD-POTFILES.in +index 5fc39cf..8385565 100644 +--- gdb-10.2/bfd/po/BLD-POTFILES.in ++++ gdb-10.2/bfd/po/BLD-POTFILES.in +@@ -2,10 +2,12 @@ bfd_stdint.h + bfdver.h + elf32-aarch64.c + elf32-ia64.c ++elf32-loongarch.c + elf32-riscv.c + elf32-target.h + elf64-aarch64.c + elf64-ia64.c ++elf64-loongarch.c + elf64-riscv.c + elf64-target.h + peigen.c +diff --git gdb-10.2/bfd/po/SRC-POTFILES.in gdb-10.2/bfd/po/SRC-POTFILES.in +index 83530b2..96edf89 100644 +--- gdb-10.2/bfd/po/SRC-POTFILES.in ++++ gdb-10.2/bfd/po/SRC-POTFILES.in +@@ -72,6 +72,7 @@ cpu-iq2000.c + cpu-k1om.c + cpu-l1om.c + cpu-lm32.c ++cpu-loongarch.c + cpu-m10200.c + cpu-m10300.c + cpu-m32c.c +diff --git gdb-10.2/bfd/reloc.c gdb-10.2/bfd/reloc.c +index dc923fe..9d70bb1 100644 +--- gdb-10.2/bfd/reloc.c ++++ gdb-10.2/bfd/reloc.c +@@ -8142,6 +8142,177 @@ ENUM + ENUMDOC + S12Z relocations. + ++ENUM ++ BFD_RELOC_LARCH_TLS_DTPMOD32 ++ENUMX ++ BFD_RELOC_LARCH_TLS_DTPREL32 ++ENUMX ++ BFD_RELOC_LARCH_TLS_DTPMOD64 ++ENUMX ++ BFD_RELOC_LARCH_TLS_DTPREL64 ++ENUMX ++ BFD_RELOC_LARCH_TLS_TPREL32 ++ENUMX ++ BFD_RELOC_LARCH_TLS_TPREL64 ++ENUMX ++ BFD_RELOC_LARCH_MARK_LA ++ENUMX ++ BFD_RELOC_LARCH_MARK_PCREL ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_PCREL ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_DUP ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_GPREL ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_TLS_GD ++ENUMX ++ BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL ++ENUMX ++ BFD_RELOC_LARCH_SOP_ASSERT ++ENUMX ++ BFD_RELOC_LARCH_SOP_NOT ++ENUMX ++ BFD_RELOC_LARCH_SOP_SUB ++ENUMX ++ BFD_RELOC_LARCH_SOP_SL ++ENUMX ++ BFD_RELOC_LARCH_SOP_SR ++ENUMX ++ BFD_RELOC_LARCH_SOP_ADD ++ENUMX ++ BFD_RELOC_LARCH_SOP_AND ++ENUMX ++ BFD_RELOC_LARCH_SOP_IF_ELSE ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_5 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_U_10_12 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_12 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_5_20 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2 ++ENUMX ++ BFD_RELOC_LARCH_SOP_POP_32_U ++ENUMX ++ BFD_RELOC_LARCH_ADD8 ++ENUMX ++ BFD_RELOC_LARCH_ADD16 ++ENUMX ++ BFD_RELOC_LARCH_ADD24 ++ENUMX ++ BFD_RELOC_LARCH_ADD32 ++ENUMX ++ BFD_RELOC_LARCH_ADD64 ++ENUMX ++ BFD_RELOC_LARCH_SUB8 ++ENUMX ++ BFD_RELOC_LARCH_SUB16 ++ENUMX ++ BFD_RELOC_LARCH_SUB24 ++ENUMX ++ BFD_RELOC_LARCH_SUB32 ++ENUMX ++ BFD_RELOC_LARCH_SUB64 ++ ++ENUMX ++ BFD_RELOC_LARCH_B16 ++ENUMX ++ BFD_RELOC_LARCH_B21 ++ENUMX ++ BFD_RELOC_LARCH_B26 ++ ++ENUMX ++ BFD_RELOC_LARCH_ABS_HI20 ++ENUMX ++ BFD_RELOC_LARCH_ABS_LO12 ++ENUMX ++ BFD_RELOC_LARCH_ABS64_LO20 ++ENUMX ++ BFD_RELOC_LARCH_ABS64_HI12 ++ ++ENUMX ++ BFD_RELOC_LARCH_PCALA_HI20 ++ENUMX ++ BFD_RELOC_LARCH_PCALA_LO12 ++ENUMX ++ BFD_RELOC_LARCH_PCALA64_LO20 ++ENUMX ++ BFD_RELOC_LARCH_PCALA64_HI12 ++ ++ENUMX ++ BFD_RELOC_LARCH_GOT_PC_HI20 ++ENUMX ++ BFD_RELOC_LARCH_GOT_PC_LO12 ++ENUMX ++ BFD_RELOC_LARCH_GOT64_PC_LO20 ++ENUMX ++ BFD_RELOC_LARCH_GOT64_PC_HI12 ++ENUMX ++ BFD_RELOC_LARCH_GOT_HI20 ++ENUMX ++ BFD_RELOC_LARCH_GOT_LO12 ++ENUMX ++ BFD_RELOC_LARCH_GOT64_LO20 ++ENUMX ++ BFD_RELOC_LARCH_GOT64_HI12 ++ ++ENUMX ++ BFD_RELOC_LARCH_TLS_LE_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_LE_LO12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_LE64_LO20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_LE64_HI12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE_PC_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE_PC_LO12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE64_PC_LO20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE64_PC_HI12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE_LO12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE64_LO20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_IE64_HI12 ++ENUMX ++ BFD_RELOC_LARCH_TLS_LD_PC_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_LD_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_GD_PC_HI20 ++ENUMX ++ BFD_RELOC_LARCH_TLS_GD_HI20 ++ ++ENUMX ++ BFD_RELOC_LARCH_32_PCREL ++ ++ENUMX ++ BFD_RELOC_LARCH_RELAX ++ ++ENUMDOC ++ LARCH relocations. ++ + ENDSENUM + BFD_RELOC_UNUSED + CODE_FRAGMENT +diff --git gdb-10.2/bfd/targets.c gdb-10.2/bfd/targets.c +index 35492b9..5f2147f 100644 +--- gdb-10.2/bfd/targets.c ++++ gdb-10.2/bfd/targets.c +@@ -759,6 +759,8 @@ extern const bfd_target l1om_elf64_vec; + extern const bfd_target l1om_elf64_fbsd_vec; + extern const bfd_target lm32_elf32_vec; + extern const bfd_target lm32_elf32_fdpic_vec; ++extern const bfd_target loongarch_elf64_vec; ++extern const bfd_target loongarch_elf32_vec; + extern const bfd_target m32c_elf32_vec; + extern const bfd_target m32r_elf32_vec; + extern const bfd_target m32r_elf32_le_vec; +@@ -1346,6 +1348,12 @@ static const bfd_target * const _bfd_target_vector[] = + &z80_elf32_vec, + + &z8k_coff_vec, ++ ++#ifdef BFD64 ++ &loongarch_elf32_vec, ++ &loongarch_elf64_vec, ++#endif ++ + #endif /* not SELECT_VECS */ + + /* Always support S-records, for convenience. */ +diff --git gdb-10.2/config.guess gdb-10.2/config.guess +index 45001cf..1155f0a 100755 +--- gdb-10.2/config.guess ++++ gdb-10.2/config.guess +@@ -985,6 +985,9 @@ EOF + k1om:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; ++ loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*) ++ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" ++ exit ;; + m32r*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; +diff --git gdb-10.2/config.sub gdb-10.2/config.sub +index f02d43a..df57c18 100755 +--- gdb-10.2/config.sub ++++ gdb-10.2/config.sub +@@ -1183,6 +1183,7 @@ case $cpu-$vendor in + | k1om \ + | le32 | le64 \ + | lm32 \ ++ | loongarch32 | loongarch64 | loongarchx32 \ + | m32c | m32r | m32rle \ + | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \ + | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \ +diff --git gdb-10.2/gdb/Makefile.in gdb-10.2/gdb/Makefile.in +index ec371fc..67af7d0 100644 +--- gdb-10.2/gdb/Makefile.in ++++ gdb-10.2/gdb/Makefile.in +@@ -712,6 +712,8 @@ ALL_TARGET_OBS = \ + arch/i386.o \ + arch/ppc-linux-common.o \ + arch/riscv.o \ ++ arch/loongarch.o \ ++ arch/loongarch-linux-nat.o \ + arm-bsd-tdep.o \ + arm-fbsd-tdep.o \ + arm-linux-tdep.o \ +@@ -760,6 +762,9 @@ ALL_TARGET_OBS = \ + linux-record.o \ + linux-tdep.o \ + lm32-tdep.o \ ++ loongarch-tdep.o \ ++ loongarch-linux-tdep.o \ ++ loongarch-linux-nat.o \ + m32c-tdep.o \ + m32r-linux-tdep.o \ + m32r-tdep.o \ +@@ -1324,6 +1329,8 @@ HFILES_NO_SRCDIR = \ + linux-record.h \ + linux-tdep.h \ + location.h \ ++ loongarch-tdep.h \ ++ loongarch-linux-tdep.h \ + m2-lang.h \ + m32r-tdep.h \ + m68k-tdep.h \ +@@ -1456,6 +1463,8 @@ HFILES_NO_SRCDIR = \ + arch/arc.h \ + arch/arm.h \ + arch/i386.h \ ++ arch/loongarch.h \ ++ arch/loongarch-linux-nat.h \ + arch/ppc-linux-common.h \ + arch/ppc-linux-tdesc.h \ + arch/riscv.h \ +@@ -1500,6 +1509,7 @@ HFILES_NO_SRCDIR = \ + nat/linux-personality.h \ + nat/linux-ptrace.h \ + nat/linux-waitpid.h \ ++ nat/loongarch-linux-watch.h \ + nat/mips-linux-watch.h \ + nat/ppc-linux.h \ + nat/x86-cpuid.h \ +@@ -2205,6 +2215,9 @@ ALLDEPFILES = \ + linux-record.c \ + linux-tdep.c \ + lm32-tdep.c \ ++ loongarch-tdep.c \ ++ loongarch-linux-tdep.c \ ++ loongarch-linux-nat.c \ + m32r-linux-nat.c \ + m32r-linux-tdep.c \ + m32r-tdep.c \ +diff --git gdb-10.2/gdb/arch/loongarch-linux-nat.c gdb-10.2/gdb/arch/loongarch-linux-nat.c +new file mode 100644 +index 0000000..baf59f8 +--- /dev/null ++++ gdb-10.2/gdb/arch/loongarch-linux-nat.c +@@ -0,0 +1,93 @@ ++/* Copyright (C) 2021 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++/* For external ptrace. */ ++#ifdef GDBSERVER ++#include "server.h" ++#include "nat/gdb_ptrace.h" ++#else ++#include "defs.h" ++#include "nat/gdb_ptrace.h" ++#endif ++ ++#include "arch/loongarch.h" ++#include "arch/loongarch-linux-nat.h" ++#include "loongarch-linux-tdep.h" ++#include "elf/common.h" ++#include <sys/uio.h> ++ ++static uint32_t ++loongarch_cpucfg_may_ptrace (uint64_t rj, int tid) ++{ ++ char t_buf[rj * 4 + 4]; ++ struct iovec iovec = { .iov_base = &t_buf, .iov_len = sizeof (t_buf) }; ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_CPUCFG, &iovec) < 0) ++ ((uint32_t *) t_buf)[rj] = loongarch_cpucfg (rj); ++ return ((uint32_t *) t_buf)[rj]; ++} ++ ++struct target_desc * ++loongarch_linux_read_description_runtime (int tid) ++{ ++ int rlen, flen, lbt, lsx, lasx; ++ ++ uint32_t cpucfg1 = loongarch_cpucfg_may_ptrace (1, tid); ++ rlen = cpucfg1 & 0x2 /* LA64 */ ? 64 : 32; ++ ++ uint32_t cpucfg2 = loongarch_cpucfg_may_ptrace (2, tid); ++ flen = 0; ++ if (cpucfg2 & 0x4 /* FP_DP */) ++ flen = 64; ++ else if (cpucfg2 & 0x2 /* FP_SP */) ++ flen = 32; ++ if (flen) ++ { ++ loongarch_elf_fpregset_t regset; ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, &iovec) < 0) ++ flen = 0; ++ } ++ ++ lbt = 0; ++ if (cpucfg2 & 0x1c0000 /* LBT_X86 || LBT_ARM || LBT_MIPS */) ++ { ++ loongarch_elf_lbtregset_t regset; ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, &iovec) == 0) ++ lbt = 1; ++ } ++ ++ lsx = 0; ++ if (cpucfg2 & 0x40 /* LSX */) ++ { ++ loongarch_elf_lsxregset_t regset; ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, &iovec) == 0) ++ lsx = 1; ++ } ++ ++ lasx = 0; ++ if (cpucfg2 & 0x80 /* LASX */) ++ { ++ loongarch_elf_lasxregset_t regset; ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LASX, &iovec) == 0) ++ lasx = 1; ++ } ++ ++ return loongarch_create_target_description (rlen, flen, lbt, lsx, lasx); ++} +diff --git gdb-10.2/gdb/arch/loongarch-linux-nat.h gdb-10.2/gdb/arch/loongarch-linux-nat.h +new file mode 100644 +index 0000000..a9cd453 +--- /dev/null ++++ gdb-10.2/gdb/arch/loongarch-linux-nat.h +@@ -0,0 +1,35 @@ ++/* ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef LOONGARCH_LINUX_NAT_H ++#define LOONGARCH_LINUX_NAT_H ++#include <stdint.h> ++ ++static inline uint32_t ++loongarch_cpucfg (uint64_t rj) ++{ ++ uint32_t ret; ++ asm ("cpucfg %0,%1" : "=r"(ret) : "r"(rj)); ++ return ret; ++} ++ ++struct target_desc; ++ ++extern struct target_desc *loongarch_linux_read_description_runtime (int tid); ++ ++#endif +diff --git gdb-10.2/gdb/arch/loongarch.c gdb-10.2/gdb/arch/loongarch.c +new file mode 100644 +index 0000000..cc6b767 +--- /dev/null ++++ gdb-10.2/gdb/arch/loongarch.c +@@ -0,0 +1,75 @@ ++/* Copyright (C) 2021 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "gdbsupport/common-defs.h" ++#include "gdbsupport/common-regcache.h" ++#include "arch/loongarch.h" ++ ++unsigned int loongarch_debug = 0; ++ ++#include <../features/loongarch/base32.c> ++#include <../features/loongarch/base64.c> ++#include <../features/loongarch/fpu32.c> ++#include <../features/loongarch/fpu64.c> ++#include <../features/loongarch/lbt32.c> ++#include <../features/loongarch/lbt64.c> ++#include <../features/loongarch/lsx.c> ++#include <../features/loongarch/lasx.c> ++ ++target_desc * ++loongarch_create_target_description (int rlen, int flen, int lbt, ++ int lsx, int lasx) ++{ ++ gdb_assert (rlen == 32 || rlen == 64); ++ ++ target_desc *tdesc = allocate_target_description (); ++ ++ set_tdesc_architecture (tdesc, rlen == 64 ? "loongarch64" : "loongarch32"); ++ ++ int regnum = 0; ++ ++ if (rlen == 64) ++ regnum = create_feature_loongarch_base64 (tdesc, regnum); ++ else if (rlen == 32) ++ regnum = create_feature_loongarch_base32 (tdesc, regnum); ++ else ++ gdb_assert_not_reached ("rlen unknown"); ++ ++ if (flen == 64) ++ regnum = create_feature_loongarch_fpu64 (tdesc, regnum); ++ else if (flen == 32) ++ regnum = create_feature_loongarch_fpu32 (tdesc, regnum); ++ ++ if (lbt && rlen == 32) ++ regnum = create_feature_loongarch_lbt32 (tdesc, regnum); ++ else if (lbt && rlen == 64) ++ regnum = create_feature_loongarch_lbt64 (tdesc, regnum); ++ ++ if (lsx) ++ regnum = create_feature_loongarch_lsx (tdesc, regnum); ++ ++ if (lasx) ++ regnum = create_feature_loongarch_lasx (tdesc, regnum); ++ ++ return tdesc; ++} ++ ++target_desc * ++loongarch_get_base_target_description (int rlen, int flen) ++{ ++ return loongarch_create_target_description (rlen, flen, 0, 0, 0); ++} +diff --git gdb-10.2/gdb/arch/loongarch.h gdb-10.2/gdb/arch/loongarch.h +new file mode 100644 +index 0000000..997afab +--- /dev/null ++++ gdb-10.2/gdb/arch/loongarch.h +@@ -0,0 +1,35 @@ ++/* ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef ARCH_LOONGARCH_H ++#define ARCH_LOONGARCH_H ++ ++#include "elf/loongarch.h" ++#include "opcode/loongarch.h" ++ ++extern unsigned int loongarch_debug; ++ ++struct target_desc; ++ ++extern struct target_desc *loongarch_get_base_target_description (int rlen, int flen); ++ ++extern struct target_desc * ++loongarch_create_target_description (int rlen, int flen, int lbt, ++ int lsx, int lasx); ++ ++#endif +diff --git gdb-10.2/gdb/configure.host gdb-10.2/gdb/configure.host +index ce52823..046bc85 100644 +--- gdb-10.2/gdb/configure.host ++++ gdb-10.2/gdb/configure.host +@@ -63,6 +63,7 @@ alpha*) gdb_host_cpu=alpha ;; + arm*) gdb_host_cpu=arm ;; + hppa*) gdb_host_cpu=pa ;; + i[34567]86*) gdb_host_cpu=i386 ;; ++loongarch*) gdb_host_cpu=loongarch ;; + m68*) gdb_host_cpu=m68k ;; + mips*) gdb_host_cpu=mips ;; + powerpc* | rs6000) gdb_host_cpu=powerpc ;; +@@ -120,6 +121,8 @@ i[34567]86-*-cygwin*) gdb_host=cygwin ;; + + ia64-*-linux*) gdb_host=linux ;; + ++loongarch*-linux*) gdb_host=linux ;; ++ + m68*-*-linux*) gdb_host=linux ;; + m68*-*-netbsdelf* | m68*-*-knetbsd*-gnu) + gdb_host=nbsdelf ;; +diff --git gdb-10.2/gdb/configure.nat gdb-10.2/gdb/configure.nat +index bb70e30..fad1631 100644 +--- gdb-10.2/gdb/configure.nat ++++ gdb-10.2/gdb/configure.nat +@@ -253,6 +253,10 @@ case ${gdb_host} in + # Host: Intel IA-64 running GNU/Linux + NATDEPFILES="${NATDEPFILES} ia64-linux-nat.o" + ;; ++ loongarch) ++ # Host: LoongArch, running GNU/Linux. ++ NATDEPFILES="${NATDEPFILES} loongarch-linux-nat.o arch/loongarch-linux-nat.o linux-nat-trad.o nat/loongarch-linux-watch.o" ++ ;; + m32r) + # Host: M32R based machine running GNU/Linux + NATDEPFILES="${NATDEPFILES} m32r-linux-nat.o" +diff --git gdb-10.2/gdb/configure.tgt gdb-10.2/gdb/configure.tgt +index a3e11c4..4454838 100644 +--- gdb-10.2/gdb/configure.tgt ++++ gdb-10.2/gdb/configure.tgt +@@ -95,6 +95,9 @@ xtensa*) + cpu_obs="xtensa-tdep.o xtensa-config.o solib-svr4.o" + ;; + ++loongarch*) ++ cpu_obs="arch/loongarch.o";; ++ + esac + + # 2. Get the objects per os in $TARG. +@@ -346,6 +349,11 @@ lm32-*-*) + gdb_sim=../sim/lm32/libsim.a + ;; + ++loongarch*-linux*) ++ gdb_target_obs="loongarch-tdep.o loongarch-linux-tdep.o glibc-tdep.o linux-tdep.o solib-svr4.o symfile-mem.o" ++ build_gdbserver=yes ++ ;; ++ + m32c-*-*) + # Target: Renesas M32C family + gdb_target_obs="m32c-tdep.o" +diff --git gdb-10.2/gdb/doc/gdb.texinfo gdb-10.2/gdb/doc/gdb.texinfo +index 097aacd..94a8537 100644 +--- gdb-10.2/gdb/doc/gdb.texinfo ++++ gdb-10.2/gdb/doc/gdb.texinfo +@@ -45227,6 +45227,7 @@ registers using the capitalization used in the description. + * ARC Features:: + * ARM Features:: + * i386 Features:: ++* LoongArch Features:: + * MicroBlaze Features:: + * MIPS Features:: + * M68K Features:: +@@ -45444,6 +45445,15 @@ The @samp{org.gnu.gdb.i386.pkeys} feature is optional. It should + describe a single register, @samp{pkru}. It is a 32-bit register + valid for i386 and amd64. + ++@node LoongArch Features ++@subsection LoongArch Features ++@cindex target descriptions, LoongArch Features ++ ++The @samp{org.gnu.gdb.loongarch.base} feature is required for LoongArch ++targets. It should contain the registers @samp{r0} through @samp{r31}, ++@samp{pc}, and @samp{badvaddr}. Either the architectural names (@samp{r0}, ++@samp{r1}, etc) can be used, or the ABI names (@samp{zero}, @samp{ra}, etc). ++ + @node MicroBlaze Features + @subsection MicroBlaze Features + @cindex target descriptions, MicroBlaze features +diff --git gdb-10.2/gdb/features/Makefile gdb-10.2/gdb/features/Makefile +index 67c3ae1..a6f8ea0 100644 +--- gdb-10.2/gdb/features/Makefile ++++ gdb-10.2/gdb/features/Makefile +@@ -74,6 +74,7 @@ arm-expedite = r11,sp,pc + i386-expedite = ebp,esp,eip + amd64-expedite = rbp,rsp,rip + x32-expedite = rbp,rsp,rip ++loongarch-expedite = r3,pc + mips-expedite = r29,pc + mips-dsp-expedite = r29,pc + mips64-expedite = r29,pc +@@ -178,6 +179,7 @@ GDB = false + aarch64-feature = 1 + arm-feature = 1 + i386-feature = 1 ++loongarch-feature = 1 + riscv-feature = 1 + tic6x-feature = 1 + +@@ -228,6 +230,14 @@ FEATURE_XMLFILES = aarch64-core.xml \ + i386/64bit-pkeys.xml \ + i386/64bit-sse.xml \ + i386/x32-core.xml \ ++ loongarch/base32.xml \ ++ loongarch/base64.xml \ ++ loongarch/fpu32.xml \ ++ loongarch/fpu64.xml \ ++ loongarch/lbt32.xml \ ++ loongarch/lbt64.xml \ ++ loongarch/lsx.xml \ ++ loongarch/lasx.xml \ + riscv/32bit-cpu.xml \ + riscv/32bit-fpu.xml \ + riscv/64bit-cpu.xml \ +diff --git gdb-10.2/gdb/features/loongarch/base32.c gdb-10.2/gdb/features/loongarch/base32.c +new file mode 100644 +index 0000000..3fb35ef +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/base32.c +@@ -0,0 +1,48 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: base32.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_base32 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.base"); ++ tdesc_create_reg (feature, "r0", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r1", regnum++, 1, "general", 32, "code_ptr"); ++ tdesc_create_reg (feature, "r2", regnum++, 1, "general", 32, "data_ptr"); ++ tdesc_create_reg (feature, "r3", regnum++, 1, "general", 32, "data_ptr"); ++ tdesc_create_reg (feature, "r4", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r5", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r6", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r7", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r8", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r9", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r10", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r11", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r12", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r13", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r14", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r15", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r16", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r17", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r18", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r19", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r20", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r21", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r22", regnum++, 1, "general", 32, "data_ptr"); ++ tdesc_create_reg (feature, "r23", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r24", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r25", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r26", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r27", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r28", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r29", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r30", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "r31", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "orig_a0", regnum++, 1, "general", 32, "uint32"); ++ tdesc_create_reg (feature, "pc", regnum++, 1, "general", 32, "code_ptr"); ++ tdesc_create_reg (feature, "badv", regnum++, 1, "general", 32, "code_ptr"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/base32.xml gdb-10.2/gdb/features/loongarch/base32.xml +new file mode 100644 +index 0000000..4c44dbe +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/base32.xml +@@ -0,0 +1,46 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.base"> ++ <reg name="r0" bitsize="32" type="uint32" group="general"/> ++ <reg name="r1" bitsize="32" type="code_ptr" group="general"/> ++ <reg name="r2" bitsize="32" type="data_ptr" group="general"/> ++ <reg name="r3" bitsize="32" type="data_ptr" group="general"/> ++ <reg name="r4" bitsize="32" type="uint32" group="general"/> ++ <reg name="r5" bitsize="32" type="uint32" group="general"/> ++ <reg name="r6" bitsize="32" type="uint32" group="general"/> ++ <reg name="r7" bitsize="32" type="uint32" group="general"/> ++ <reg name="r8" bitsize="32" type="uint32" group="general"/> ++ <reg name="r9" bitsize="32" type="uint32" group="general"/> ++ <reg name="r10" bitsize="32" type="uint32" group="general"/> ++ <reg name="r11" bitsize="32" type="uint32" group="general"/> ++ <reg name="r12" bitsize="32" type="uint32" group="general"/> ++ <reg name="r13" bitsize="32" type="uint32" group="general"/> ++ <reg name="r14" bitsize="32" type="uint32" group="general"/> ++ <reg name="r15" bitsize="32" type="uint32" group="general"/> ++ <reg name="r16" bitsize="32" type="uint32" group="general"/> ++ <reg name="r17" bitsize="32" type="uint32" group="general"/> ++ <reg name="r18" bitsize="32" type="uint32" group="general"/> ++ <reg name="r19" bitsize="32" type="uint32" group="general"/> ++ <reg name="r20" bitsize="32" type="uint32" group="general"/> ++ <reg name="r21" bitsize="32" type="uint32" group="general"/> ++ <reg name="r22" bitsize="32" type="data_ptr" group="general"/> ++ <reg name="r23" bitsize="32" type="uint32" group="general"/> ++ <reg name="r24" bitsize="32" type="uint32" group="general"/> ++ <reg name="r25" bitsize="32" type="uint32" group="general"/> ++ <reg name="r26" bitsize="32" type="uint32" group="general"/> ++ <reg name="r27" bitsize="32" type="uint32" group="general"/> ++ <reg name="r28" bitsize="32" type="uint32" group="general"/> ++ <reg name="r29" bitsize="32" type="uint32" group="general"/> ++ <reg name="r30" bitsize="32" type="uint32" group="general"/> ++ <reg name="r31" bitsize="32" type="uint32" group="general"/> ++ <reg name="orig_a0" bitsize="32" type="uint32" group="general"/> ++ <reg name="pc" bitsize="32" type="code_ptr" group="general"/> ++ <reg name="badv" bitsize="32" type="code_ptr" group="general"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/base64.c gdb-10.2/gdb/features/loongarch/base64.c +new file mode 100644 +index 0000000..d84d425 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/base64.c +@@ -0,0 +1,48 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: base64.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_base64 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.base"); ++ tdesc_create_reg (feature, "r0", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r1", regnum++, 1, "general", 64, "code_ptr"); ++ tdesc_create_reg (feature, "r2", regnum++, 1, "general", 64, "data_ptr"); ++ tdesc_create_reg (feature, "r3", regnum++, 1, "general", 64, "data_ptr"); ++ tdesc_create_reg (feature, "r4", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r5", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r6", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r7", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r8", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r9", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r10", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r11", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r12", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r13", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r14", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r15", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r16", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r17", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r18", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r19", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r20", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r21", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r22", regnum++, 1, "general", 64, "data_ptr"); ++ tdesc_create_reg (feature, "r23", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r24", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r25", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r26", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r27", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r28", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r29", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r30", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "r31", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "orig_a0", regnum++, 1, "general", 64, "uint64"); ++ tdesc_create_reg (feature, "pc", regnum++, 1, "general", 64, "code_ptr"); ++ tdesc_create_reg (feature, "badv", regnum++, 1, "general", 64, "code_ptr"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/base64.xml gdb-10.2/gdb/features/loongarch/base64.xml +new file mode 100644 +index 0000000..05d766e +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/base64.xml +@@ -0,0 +1,46 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.base"> ++ <reg name="r0" bitsize="64" type="uint64" group="general"/> ++ <reg name="r1" bitsize="64" type="code_ptr" group="general"/> ++ <reg name="r2" bitsize="64" type="data_ptr" group="general"/> ++ <reg name="r3" bitsize="64" type="data_ptr" group="general"/> ++ <reg name="r4" bitsize="64" type="uint64" group="general"/> ++ <reg name="r5" bitsize="64" type="uint64" group="general"/> ++ <reg name="r6" bitsize="64" type="uint64" group="general"/> ++ <reg name="r7" bitsize="64" type="uint64" group="general"/> ++ <reg name="r8" bitsize="64" type="uint64" group="general"/> ++ <reg name="r9" bitsize="64" type="uint64" group="general"/> ++ <reg name="r10" bitsize="64" type="uint64" group="general"/> ++ <reg name="r11" bitsize="64" type="uint64" group="general"/> ++ <reg name="r12" bitsize="64" type="uint64" group="general"/> ++ <reg name="r13" bitsize="64" type="uint64" group="general"/> ++ <reg name="r14" bitsize="64" type="uint64" group="general"/> ++ <reg name="r15" bitsize="64" type="uint64" group="general"/> ++ <reg name="r16" bitsize="64" type="uint64" group="general"/> ++ <reg name="r17" bitsize="64" type="uint64" group="general"/> ++ <reg name="r18" bitsize="64" type="uint64" group="general"/> ++ <reg name="r19" bitsize="64" type="uint64" group="general"/> ++ <reg name="r20" bitsize="64" type="uint64" group="general"/> ++ <reg name="r21" bitsize="64" type="uint64" group="general"/> ++ <reg name="r22" bitsize="64" type="data_ptr" group="general"/> ++ <reg name="r23" bitsize="64" type="uint64" group="general"/> ++ <reg name="r24" bitsize="64" type="uint64" group="general"/> ++ <reg name="r25" bitsize="64" type="uint64" group="general"/> ++ <reg name="r26" bitsize="64" type="uint64" group="general"/> ++ <reg name="r27" bitsize="64" type="uint64" group="general"/> ++ <reg name="r28" bitsize="64" type="uint64" group="general"/> ++ <reg name="r29" bitsize="64" type="uint64" group="general"/> ++ <reg name="r30" bitsize="64" type="uint64" group="general"/> ++ <reg name="r31" bitsize="64" type="uint64" group="general"/> ++ <reg name="orig_a0" bitsize="64" type="uint64" group="general"/> ++ <reg name="pc" bitsize="64" type="code_ptr" group="general"/> ++ <reg name="badv" bitsize="64" type="code_ptr" group="general"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/fpu32.c gdb-10.2/gdb/features/loongarch/fpu32.c +new file mode 100644 +index 0000000..bf8964a +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/fpu32.c +@@ -0,0 +1,54 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: fpu32.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_fpu32 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.fpu"); ++ tdesc_create_reg (feature, "f0", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f1", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f2", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f3", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f4", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f5", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f6", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f7", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f8", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f9", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f10", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f11", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f12", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f13", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f14", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f15", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f16", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f17", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f18", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f19", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f20", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f21", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f22", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f23", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f24", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f25", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f26", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f27", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f28", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f29", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f30", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "f31", regnum++, 1, "float", 32, "ieee_single"); ++ tdesc_create_reg (feature, "fcc0", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc1", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc2", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc3", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc4", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc5", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc6", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc7", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcsr", regnum++, 1, "float", 32, "uint32"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/fpu32.xml gdb-10.2/gdb/features/loongarch/fpu32.xml +new file mode 100644 +index 0000000..8421730 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/fpu32.xml +@@ -0,0 +1,53 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.fpu"> ++ ++ <reg name="f0" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f1" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f2" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f3" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f4" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f5" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f6" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f7" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f8" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f9" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f10" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f11" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f12" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f13" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f14" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f15" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f16" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f17" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f18" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f19" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f20" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f21" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f22" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f23" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f24" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f25" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f26" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f27" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f28" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f29" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f30" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="f31" bitsize="32" type="ieee_single" group="float"/> ++ <reg name="fcc0" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc1" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc2" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc3" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc4" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc5" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc6" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc7" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcsr" bitsize="32" type="uint32" group="float"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/fpu64.c gdb-10.2/gdb/features/loongarch/fpu64.c +new file mode 100644 +index 0000000..f9e24c3 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/fpu64.c +@@ -0,0 +1,62 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: fpu64.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_fpu64 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.fpu"); ++ tdesc_type_with_fields *type_with_fields; ++ type_with_fields = tdesc_create_union (feature, "fpu64type"); ++ tdesc_type *field_type; ++ field_type = tdesc_named_type (feature, "ieee_single"); ++ tdesc_add_field (type_with_fields, "f", field_type); ++ field_type = tdesc_named_type (feature, "ieee_double"); ++ tdesc_add_field (type_with_fields, "d", field_type); ++ ++ tdesc_create_reg (feature, "f0", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f1", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f2", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f3", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f4", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f5", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f6", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f7", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f8", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f9", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f10", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f11", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f12", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f13", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f14", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f15", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f16", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f17", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f18", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f19", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f20", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f21", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f22", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f23", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f24", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f25", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f26", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f27", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f28", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f29", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f30", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "f31", regnum++, 1, "float", 64, "fpu64type"); ++ tdesc_create_reg (feature, "fcc0", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc1", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc2", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc3", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc4", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc5", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc6", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcc7", regnum++, 1, "float", 8, "uint8"); ++ tdesc_create_reg (feature, "fcsr", regnum++, 1, "float", 32, "uint32"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/fpu64.xml gdb-10.2/gdb/features/loongarch/fpu64.xml +new file mode 100644 +index 0000000..420be8b +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/fpu64.xml +@@ -0,0 +1,58 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.fpu"> ++ ++ <union id="fpu64type"> ++ <field name="f" type="ieee_single"/> ++ <field name="d" type="ieee_double"/> ++ </union> ++ ++ <reg name="f0" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f1" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f2" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f3" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f4" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f5" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f6" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f7" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f8" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f9" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f10" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f11" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f12" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f13" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f14" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f15" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f16" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f17" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f18" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f19" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f20" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f21" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f22" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f23" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f24" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f25" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f26" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f27" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f28" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f29" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f30" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="f31" bitsize="64" type="fpu64type" group="float"/> ++ <reg name="fcc0" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc1" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc2" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc3" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc4" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc5" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc6" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcc7" bitsize="8" type="uint8" group="float"/> ++ <reg name="fcsr" bitsize="32" type="uint32" group="float"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/lasx.c gdb-10.2/gdb/features/loongarch/lasx.c +new file mode 100644 +index 0000000..96e3ea9 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lasx.c +@@ -0,0 +1,80 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: lasx.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_lasx (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lasx"); ++ tdesc_type *element_type; ++ element_type = tdesc_named_type (feature, "int8"); ++ tdesc_create_vector (feature, "v32i8", element_type, 32); ++ ++ element_type = tdesc_named_type (feature, "int16"); ++ tdesc_create_vector (feature, "v16i16", element_type, 16); ++ ++ element_type = tdesc_named_type (feature, "int32"); ++ tdesc_create_vector (feature, "v8i32", element_type, 8); ++ ++ element_type = tdesc_named_type (feature, "int64"); ++ tdesc_create_vector (feature, "v4i64", element_type, 4); ++ ++ element_type = tdesc_named_type (feature, "ieee_single"); ++ tdesc_create_vector (feature, "v8f32", element_type, 8); ++ ++ element_type = tdesc_named_type (feature, "ieee_double"); ++ tdesc_create_vector (feature, "v4f64", element_type, 4); ++ ++ tdesc_type_with_fields *type_with_fields; ++ type_with_fields = tdesc_create_union (feature, "lasxv"); ++ tdesc_type *field_type; ++ field_type = tdesc_named_type (feature, "v32i8"); ++ tdesc_add_field (type_with_fields, "v32i8", field_type); ++ field_type = tdesc_named_type (feature, "v16i16"); ++ tdesc_add_field (type_with_fields, "v16i16", field_type); ++ field_type = tdesc_named_type (feature, "v8i32"); ++ tdesc_add_field (type_with_fields, "v8i32", field_type); ++ field_type = tdesc_named_type (feature, "v4i64"); ++ tdesc_add_field (type_with_fields, "v4i64", field_type); ++ field_type = tdesc_named_type (feature, "v8f32"); ++ tdesc_add_field (type_with_fields, "v8f32", field_type); ++ field_type = tdesc_named_type (feature, "v4f64"); ++ tdesc_add_field (type_with_fields, "v4f64", field_type); ++ ++ tdesc_create_reg (feature, "xr0", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr1", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr2", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr3", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr4", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr5", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr6", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr7", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr8", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr9", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr10", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr11", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr12", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr13", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr14", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr15", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr16", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr17", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr18", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr19", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr20", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr21", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr22", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr23", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr24", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr25", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr26", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr27", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr28", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr29", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr30", regnum++, 1, "lasx", 256, "lasxv"); ++ tdesc_create_reg (feature, "xr31", regnum++, 1, "lasx", 256, "lasxv"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/lasx.xml gdb-10.2/gdb/features/loongarch/lasx.xml +new file mode 100644 +index 0000000..6f73df0 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lasx.xml +@@ -0,0 +1,59 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.lasx"> ++ <vector id="v32i8" type="int8" count="32"/> ++ <vector id="v16i16" type="int16" count="16"/> ++ <vector id="v8i32" type="int32" count="8"/> ++ <vector id="v4i64" type="int64" count="4"/> ++ <vector id="v8f32" type="ieee_single" count="8"/> ++ <vector id="v4f64" type="ieee_double" count="4"/> ++ ++ <union id="lasxv"> ++ <field name="v32i8" type="v32i8"/> ++ <field name="v16i16" type="v16i16"/> ++ <field name="v8i32" type="v8i32"/> ++ <field name="v4i64" type="v4i64"/> ++ <field name="v8f32" type="v8f32"/> ++ <field name="v4f64" type="v4f64"/> ++ </union> ++ ++ <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/> ++ <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/lbt32.c gdb-10.2/gdb/features/loongarch/lbt32.c +new file mode 100644 +index 0000000..d245c75 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lbt32.c +@@ -0,0 +1,19 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: lbt32.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_lbt32 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lbt"); ++ tdesc_create_reg (feature, "scr0", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "scr1", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "scr2", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "scr3", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "EFLAG", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "x86_top", regnum++, 1, "lbt", 8, "uint8"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/lbt32.xml gdb-10.2/gdb/features/loongarch/lbt32.xml +new file mode 100644 +index 0000000..1c0133e +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lbt32.xml +@@ -0,0 +1,17 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.lbt"> ++ <reg name="scr0" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="scr1" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="scr2" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="scr3" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="EFLAG" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="x86_top" bitsize="8" type="uint8" group="lbt"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/lbt64.c gdb-10.2/gdb/features/loongarch/lbt64.c +new file mode 100644 +index 0000000..ecef330 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lbt64.c +@@ -0,0 +1,19 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: lbt64.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_lbt64 (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lbt"); ++ tdesc_create_reg (feature, "scr0", regnum++, 1, "lbt", 64, "uint64"); ++ tdesc_create_reg (feature, "scr1", regnum++, 1, "lbt", 64, "uint64"); ++ tdesc_create_reg (feature, "scr2", regnum++, 1, "lbt", 64, "uint64"); ++ tdesc_create_reg (feature, "scr3", regnum++, 1, "lbt", 64, "uint64"); ++ tdesc_create_reg (feature, "EFLAG", regnum++, 1, "lbt", 32, "uint32"); ++ tdesc_create_reg (feature, "x86_top", regnum++, 1, "lbt", 8, "uint8"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/lbt64.xml gdb-10.2/gdb/features/loongarch/lbt64.xml +new file mode 100644 +index 0000000..1df26f5 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lbt64.xml +@@ -0,0 +1,17 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.lbt"> ++ <reg name="scr0" bitsize="64" type="uint64" group="lbt"/> ++ <reg name="scr1" bitsize="64" type="uint64" group="lbt"/> ++ <reg name="scr2" bitsize="64" type="uint64" group="lbt"/> ++ <reg name="scr3" bitsize="64" type="uint64" group="lbt"/> ++ <reg name="EFLAG" bitsize="32" type="uint32" group="lbt"/> ++ <reg name="x86_top" bitsize="8" type="uint8" group="lbt"/> ++</feature> +diff --git gdb-10.2/gdb/features/loongarch/lsx.c gdb-10.2/gdb/features/loongarch/lsx.c +new file mode 100644 +index 0000000..dd253f3 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lsx.c +@@ -0,0 +1,80 @@ ++/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: ++ Original: lsx.xml */ ++ ++#include "gdbsupport/tdesc.h" ++ ++static int ++create_feature_loongarch_lsx (struct target_desc *result, long regnum) ++{ ++ struct tdesc_feature *feature; ++ ++ feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lsx"); ++ tdesc_type *element_type; ++ element_type = tdesc_named_type (feature, "int8"); ++ tdesc_create_vector (feature, "v16i8", element_type, 16); ++ ++ element_type = tdesc_named_type (feature, "int16"); ++ tdesc_create_vector (feature, "v8i16", element_type, 8); ++ ++ element_type = tdesc_named_type (feature, "int32"); ++ tdesc_create_vector (feature, "v4i32", element_type, 4); ++ ++ element_type = tdesc_named_type (feature, "int64"); ++ tdesc_create_vector (feature, "v2i64", element_type, 2); ++ ++ element_type = tdesc_named_type (feature, "ieee_single"); ++ tdesc_create_vector (feature, "v4f32", element_type, 4); ++ ++ element_type = tdesc_named_type (feature, "ieee_double"); ++ tdesc_create_vector (feature, "v2f64", element_type, 2); ++ ++ tdesc_type_with_fields *type_with_fields; ++ type_with_fields = tdesc_create_union (feature, "lsxv"); ++ tdesc_type *field_type; ++ field_type = tdesc_named_type (feature, "v16i8"); ++ tdesc_add_field (type_with_fields, "v16i8", field_type); ++ field_type = tdesc_named_type (feature, "v8i16"); ++ tdesc_add_field (type_with_fields, "v8i16", field_type); ++ field_type = tdesc_named_type (feature, "v4i32"); ++ tdesc_add_field (type_with_fields, "v4i32", field_type); ++ field_type = tdesc_named_type (feature, "v2i64"); ++ tdesc_add_field (type_with_fields, "v2i64", field_type); ++ field_type = tdesc_named_type (feature, "v4f32"); ++ tdesc_add_field (type_with_fields, "v4f32", field_type); ++ field_type = tdesc_named_type (feature, "v2f64"); ++ tdesc_add_field (type_with_fields, "v2f64", field_type); ++ ++ tdesc_create_reg (feature, "vr0", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr1", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr2", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr3", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr4", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr5", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr6", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr7", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr8", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr9", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr10", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr11", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr12", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr13", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr14", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr15", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr16", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr17", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr18", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr19", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr20", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr21", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr22", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr23", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr24", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr25", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr26", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr27", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr28", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr29", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr30", regnum++, 1, "lsx", 128, "lsxv"); ++ tdesc_create_reg (feature, "vr31", regnum++, 1, "lsx", 128, "lsxv"); ++ return regnum; ++} +diff --git gdb-10.2/gdb/features/loongarch/lsx.xml gdb-10.2/gdb/features/loongarch/lsx.xml +new file mode 100644 +index 0000000..a0a6ba4 +--- /dev/null ++++ gdb-10.2/gdb/features/loongarch/lsx.xml +@@ -0,0 +1,59 @@ ++<?xml version="1.0"?> ++<!-- Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ Copying and distribution of this file, with or without modification, ++ are permitted in any medium without royalty provided the copyright ++ notice and this notice are preserved. --> ++ ++<!DOCTYPE feature SYSTEM "gdb-target.dtd"> ++<feature name="org.gnu.gdb.loongarch.lsx"> ++ <vector id="v16i8" type="int8" count="16"/> ++ <vector id="v8i16" type="int16" count="8"/> ++ <vector id="v4i32" type="int32" count="4"/> ++ <vector id="v2i64" type="int64" count="2"/> ++ <vector id="v4f32" type="ieee_single" count="4"/> ++ <vector id="v2f64" type="ieee_double" count="2"/> ++ ++ <union id="lsxv"> ++ <field name="v16i8" type="v16i8"/> ++ <field name="v8i16" type="v8i16"/> ++ <field name="v4i32" type="v4i32"/> ++ <field name="v2i64" type="v2i64"/> ++ <field name="v4f32" type="v4f32"/> ++ <field name="v2f64" type="v2f64"/> ++ </union> ++ ++ <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr24" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/> ++ <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/> ++</feature> +diff --git gdb-10.2/gdb/loongarch-linux-nat.c gdb-10.2/gdb/loongarch-linux-nat.c +new file mode 100644 +index 0000000..e79b660 +--- /dev/null ++++ gdb-10.2/gdb/loongarch-linux-nat.c +@@ -0,0 +1,878 @@ ++/* Target-dependent code for GNU/Linux LoongArch. ++ ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "defs.h" ++#include "command.h" ++#include "gdbcmd.h" ++#include "inferior.h" ++#include "loongarch-tdep.h" ++#include "target.h" ++#include "regcache.h" ++#include "linux-nat-trad.h" ++#include "loongarch-linux-tdep.h" ++#include "target-descriptions.h" ++ ++#include "gdb_proc_service.h" ++#include "gregset.h" ++ ++#include "nat/gdb_ptrace.h" ++#include <asm/ptrace.h> ++#include "inf-ptrace.h" ++#include "arch/loongarch-linux-nat.h" ++#include "elf/common.h" ++ ++#include "nat/loongarch-linux-watch.h" ++ ++class loongarch_linux_nat_target final : public linux_nat_trad_target ++{ ++public: ++ void fetch_registers (struct regcache *, int) override; ++ void store_registers (struct regcache *, int) override; ++ ++ void close () override; ++ ++ int can_use_hw_breakpoint (enum bptype, int, int) override; ++ ++ int insert_hw_breakpoint (struct gdbarch *, ++ struct bp_target_info *) override; ++ ++ int remove_hw_breakpoint (struct gdbarch *, ++ struct bp_target_info *) override; ++ ++ int remove_watchpoint (CORE_ADDR, int, enum target_hw_bp_type, ++ struct expression *) override; ++ ++ int insert_watchpoint (CORE_ADDR, int, enum target_hw_bp_type, ++ struct expression *) override; ++ ++ bool stopped_by_watchpoint () override; ++ ++ bool stopped_data_address (CORE_ADDR *) override; ++ ++ int region_ok_for_hw_watchpoint (CORE_ADDR, int) override; ++ ++ const struct target_desc *read_description () override; ++ ++ enum target_xfer_status xfer_partial (enum target_object object, ++ const char *annex, gdb_byte *readbuf, ++ const gdb_byte *writebuf, ++ ULONGEST offset, ULONGEST len, ++ ULONGEST *xfered_len) override; ++ ++protected: ++ CORE_ADDR register_u_offset (struct gdbarch *gdbarch, int regno, ++ int store_p) override; ++ ++ void low_new_thread (struct lwp_info *lp) override; ++}; ++ ++const struct target_desc * ++loongarch_linux_nat_target::read_description () ++{ ++ return loongarch_linux_read_description_runtime (inferior_ptid.pid ()); ++} ++ ++/* Fill GDB's register array with the general-purpose, orig_a0, pc and badv ++ register values from the current thread. */ ++ ++static void ++fetch_gregs_from_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_gregset_t regset; ++ ++ if ((regno == -1) || (regs->r <= regno && regno < regs->r + 32) || ++ (regs->orig_a0 == regno) || (regs->pc == regno) || ++ (regs->badv == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get NT_PRSTATUS registers")); ++ else ++ loongarch_elf_gregset.supply_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ } ++} ++ ++/* Store to the current thread the valid general-purpose, orig_a0, pc and badv ++ register values in the GDB's register array. */ ++ ++static void ++store_gregs_to_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_gregset_t regset; ++ ++ if ((regno == -1) || (regs->r <= regno && regno < regs->r + 32) || ++ (regs->orig_a0 == regno) || (regs->pc == regno) || ++ (regs->badv == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get NT_PRSTATUS registers")); ++ else ++ { ++ loongarch_elf_gregset.collect_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ if (ptrace (PTRACE_SETREGSET, tid, NT_PRSTATUS, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't set NT_PRSTATUS registers")); ++ } ++ } ++} ++ ++/* Fill GDB's register array with the fp, fcc and fcsr ++ register values from the current thread. */ ++ ++static void ++fetch_fpregs_from_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_fpregset_t regset; ++ ++ if ((regno == -1) || (regs->f <= regno && regno < regs->f + 32) || ++ (regs->fcc <= regno && regno < regs->fcc + 8) || (regs->fcsr == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get NT_FPREGSET registers")); ++ else ++ loongarch_elf_fpregset.supply_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ } ++} ++ ++/* Store to the current thread the valid fp, fcc and fcsr ++ register values in the GDB's register array. */ ++ ++static void ++store_fpregs_to_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_fpregset_t regset; ++ ++ if ((regno == -1) || (regs->f <= regno && regno < regs->f + 32) || ++ (regs->fcc <= regno && regno < regs->fcc + 8) || (regs->fcsr == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get NT_FPREGSET registers")); ++ else ++ { ++ loongarch_elf_fpregset.collect_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ if (ptrace (PTRACE_SETREGSET, tid, NT_FPREGSET, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't set NT_FPREGSET registers")); ++ } ++ } ++} ++ ++/* Fill GDB's register array with the Binary Translation ++ register values from the current thread. */ ++ ++static void ++fetch_lbtregs_from_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lbtregset_t regset; ++ ++ if ((regno == -1) || (regs->scr <= regno && regno < regs->scr + 4) || ++ (regs->EFLAG == regno) || (regs->x86_top == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LBT registers")); ++ else ++ loongarch_elf_lbtregset.supply_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ } ++} ++ ++/* Store to the current thread the valid Binary Translation ++ register values in the GDB's register array. */ ++ ++static void ++store_lbtregs_to_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lbtregset_t regset; ++ ++ if ((regno == -1) || (regs->scr <= regno && regno < regs->scr + 4) || ++ (regs->EFLAG == regno) || (regs->x86_top == regno)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LBT registers")); ++ else ++ { ++ loongarch_elf_lbtregset.collect_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LBT, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't set LBT registers")); ++ } ++ } ++} ++ ++/* Fill GDB's register array with the SIMD eXtension ++ register values from the current thread. */ ++ ++static void ++fetch_lsxregs_from_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lsxregset_t regset; ++ ++ if ((regno == -1) || (regs->vr <= regno && regno < regs->vr + 32)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LSX registers")); ++ else ++ loongarch_elf_lsxregset.supply_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ } ++} ++ ++/* Store to the current thread the valid SIMD eXtension ++ register values in the GDB's register array. */ ++ ++static void ++store_lsxregs_to_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lsxregset_t regset; ++ ++ if ((regno == -1) || (regs->vr <= regno && regno < regs->vr + 32)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LSX registers")); ++ else ++ { ++ loongarch_elf_lsxregset.collect_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't set LSX registers")); ++ } ++ } ++} ++ ++/* Fill GDB's register array with the Advanced SIMD eXtension ++ register values from the current thread. */ ++ ++static void ++fetch_lasxregs_from_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lasxregset_t regset; ++ ++ if ((regno == -1) || (regs->xr <= regno && regno < regs->xr + 32)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LASX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LASX registers")); ++ else ++ loongarch_elf_lasxregset.supply_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ } ++} ++ ++/* Store to the current thread the valid Advanced SIMD eXtension ++ register values in the GDB's register array. */ ++ ++static void ++store_lasxregs_to_thread (struct regcache *regcache, int regno, pid_t tid) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ loongarch_elf_lasxregset_t regset; ++ ++ if ((regno == -1) || (regs->xr <= regno && regno < regs->xr + 32)) ++ { ++ struct iovec iovec = { .iov_base = ®set, .iov_len = sizeof (regset) }; ++ ++ if (ptrace (PTRACE_GETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't get LSX registers")); ++ else ++ { ++ loongarch_elf_lsxregset.collect_regset (NULL, regcache, regno, ®set, ++ sizeof (regset)); ++ if (ptrace (PTRACE_SETREGSET, tid, NT_LARCH_LSX, (long) &iovec) < 0) ++ perror_with_name (_("Couldn't set LSX registers")); ++ } ++ } ++} ++ ++/* Implement the "fetch_registers" target_ops method. */ ++ ++void ++loongarch_linux_nat_target::fetch_registers (struct regcache *regcache, ++ int regno) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ pid_t tid = get_ptrace_pid (regcache->ptid ()); ++ ++ fetch_gregs_from_thread(regcache, regno, tid); ++ ++ if (regs->f > 0) ++ fetch_fpregs_from_thread(regcache, regno, tid); ++ ++ if (regs->scr > 0) ++ fetch_lbtregs_from_thread(regcache, regno, tid); ++ ++ if (regs->vr > 0) ++ fetch_lsxregs_from_thread(regcache, regno, tid); ++ ++ if (regs->xr > 0) ++ fetch_lasxregs_from_thread(regcache, regno, tid); ++} ++ ++/* Implement the "store_registers" target_ops method. */ ++ ++void ++loongarch_linux_nat_target::store_registers (struct regcache *regcache, ++ int regno) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ pid_t tid = get_ptrace_pid (regcache->ptid ()); ++ ++ store_gregs_to_thread(regcache, regno, tid); ++ ++ if (regs->f > 0) ++ store_fpregs_to_thread(regcache, regno, tid); ++ ++ if (regs->scr > 0) ++ store_lbtregs_to_thread(regcache, regno, tid); ++ ++ if (regs->vr > 0) ++ store_lsxregs_to_thread(regcache, regno, tid); ++ ++ if (regs->xr > 0) ++ store_lasxregs_to_thread(regcache, regno, tid); ++} ++ ++/* Return the address in the core dump or inferior of register REGNO. */ ++ ++CORE_ADDR ++loongarch_linux_nat_target::register_u_offset (struct gdbarch *gdbarch, ++ int regno, int store_p) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ /* according to <asm/ptrace.h> */ ++ if (0 <= regs->r && regs->r <= regno && regno < regs->r + GPR_NUM) ++ return GPR_BASE + regno - regs->r; ++ else if (regs->pc == regno) ++ return PC; ++ return -1; ++} ++ ++/* Implement the to_xfer_partial target_ops method. */ ++ ++enum target_xfer_status ++loongarch_linux_nat_target::xfer_partial (enum target_object object, ++ const char *annex, gdb_byte *readbuf, ++ const gdb_byte *writebuf, ++ ULONGEST offset, ULONGEST len, ++ ULONGEST *xfered_len) ++{ ++ pid_t pid = inferior_ptid.pid (); ++ ++ if (object != TARGET_OBJECT_LARCH) ++ return linux_nat_trad_target::xfer_partial ( ++ object, annex, readbuf, writebuf, offset, len, xfered_len); ++ ++ if (strcmp (annex, "cpucfg") == 0) ++ { ++ if (writebuf) ++ return TARGET_XFER_E_IO; ++ if (offset % 4 != 0 || offset % 4 != 0) ++ return TARGET_XFER_E_IO; ++ char t_buf[offset + len]; ++ struct iovec iovec = { .iov_base = &t_buf, .iov_len = sizeof (t_buf) }; ++ if (ptrace (PTRACE_GETREGSET, pid, NT_LARCH_CPUCFG, &iovec) < 0) ++ { ++ size_t i; ++ for (i = offset / 4; i < (offset + len) / 4 + 1; i++) ++ ((uint32_t *) t_buf)[i] = loongarch_cpucfg (i); ++ } ++ memcpy (readbuf, t_buf + offset, len); ++ *xfered_len = len; ++ return TARGET_XFER_OK; ++ } ++ ++ return TARGET_XFER_E_IO; ++} ++ ++static loongarch_linux_nat_target the_loongarch_linux_nat_target; ++ ++/* Wrapper functions. These are only used by libthread_db. */ ++ ++void ++supply_gregset (struct regcache *regcache, ++ const gdb_gregset_t /* elf_gregset_t */ *gregset) ++{ ++ loongarch_elf_gregset.supply_regset (NULL, regcache, -1, gregset, ++ sizeof (gdb_gregset_t)); ++} ++ ++void ++fill_gregset (const struct regcache *regcache, ++ gdb_gregset_t /* elf_gregset_t */ *gregset, int regno) ++{ ++ loongarch_elf_gregset.collect_regset (NULL, regcache, regno, gregset, ++ sizeof (gdb_gregset_t)); ++} ++ ++void ++supply_fpregset (struct regcache *regcache, ++ const gdb_fpregset_t /* elf_fpregset_t */ *fpregset) ++{ ++ loongarch_elf_fpregset.supply_regset (NULL, regcache, -1, fpregset, ++ sizeof (gdb_fpregset_t)); ++} ++ ++void ++fill_fpregset (const struct regcache *regcache, ++ gdb_fpregset_t /* elf_fpregset_t */ *fpregset, int regno) ++{ ++ loongarch_elf_fpregset.collect_regset (NULL, regcache, regno, fpregset, ++ sizeof (gdb_fpregset_t)); ++} ++ ++/* -1 if the kernel and/or CPU do not support watch registers. ++ 1 if watch_readback is valid and we can read style, num_valid ++ and the masks. ++ 0 if we need to read the watch_readback. */ ++ ++static int watch_readback_valid; ++ ++/* Cached watch register read values. */ ++ ++static struct pt_watch_regs watch_readback = ++{ ++ .max_valid = MAX_DEBUG_REGISTER, ++}; ++ ++static struct loongarch_watchpoint *current_watches; ++ ++/* The current set of watch register values for writing the ++ registers. */ ++ ++static struct pt_watch_regs watch_mirror = ++{ ++ .max_valid = MAX_DEBUG_REGISTER, ++}; ++ ++static void ++loongarch_show_dr (const char *func, CORE_ADDR addr, int len, ++ enum target_hw_bp_type type) ++{ ++ int i; ++ ++ puts_unfiltered (func); ++ if (addr || len) ++ printf_unfiltered ( ++ " (addr=%s, len=%d, type=%s)", paddress (target_gdbarch (), addr), len, ++ type == hw_write ++ ? "data-write" ++ : (type == hw_read ++ ? "data-read" ++ : (type == hw_access ? "data-read/write" ++ : (type == hw_execute ? "instruction-execute" ++ : "??unknown??")))); ++ puts_unfiltered (":\n"); ++ ++ for (i = 0; i < MAX_DEBUG_REGISTER; i++) ++ printf_unfiltered ( ++ "\tDR%d: addr=%s, mask=%s\n", i, ++ paddress (target_gdbarch (), ++ loongarch_linux_watch_get_addr (&watch_mirror, i)), ++ paddress (target_gdbarch (), ++ loongarch_linux_watch_get_mask (&watch_mirror, i))); ++} ++ ++/* Target to_can_use_hw_breakpoint implementation. Return 1 if we can ++ handle the specified watch type. */ ++ ++int ++loongarch_linux_nat_target::can_use_hw_breakpoint (enum bptype type, int cnt, ++ int ot) ++{ ++ int i; ++ uint32_t wanted_mask, irw_mask; ++ long lwp = inferior_ptid.lwp (); ++ ++ if (!loongarch_linux_read_watch_registers (lwp, &watch_readback, ++ &watch_readback_valid, 0)) ++ return 0; ++ ++ switch (type) ++ { ++ case bp_hardware_watchpoint: ++ wanted_mask = W_MASK; ++ break; ++ case bp_read_watchpoint: ++ wanted_mask = R_MASK; ++ break; ++ case bp_access_watchpoint: ++ wanted_mask = R_MASK | W_MASK; ++ break; ++ case bp_hardware_breakpoint: ++ wanted_mask = I_MASK; ++ break; ++ default: ++ return 0; ++ } ++ ++ for (i = 0; i < loongarch_linux_watch_get_num_valid (&watch_readback) && cnt; ++ i++) ++ { ++ irw_mask = loongarch_linux_watch_get_irwmask (&watch_readback, i); ++ if ((irw_mask & wanted_mask) == wanted_mask) ++ cnt--; ++ } ++ return (cnt == 0) ? 1 : 0; ++} ++ ++/* Target to_stopped_by_watchpoint implementation. Return 1 if ++ stopped by watchpoint. The watchhi R and W bits indicate the watch ++ register triggered. */ ++ ++bool ++loongarch_linux_nat_target::stopped_by_watchpoint () ++{ ++ int n; ++ int num_valid; ++ ++ if (!loongarch_linux_read_watch_registers ( ++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 1)) ++ return false; ++ ++ num_valid = loongarch_linux_watch_get_num_valid (&watch_readback); ++ ++ for (n = 0; n < MAX_DEBUG_REGISTER && n < num_valid; n++) ++ if (loongarch_linux_watch_get_irwstat (&watch_readback, n) ++ & (R_MASK | W_MASK)) ++ return true; ++ ++ return false; ++} ++ ++/* Target to_stopped_data_address implementation. Set the address ++ where the watch triggered (if known). Return 1 if the address was ++ known. */ ++ ++bool ++loongarch_linux_nat_target::stopped_data_address (CORE_ADDR *paddr) ++{ ++ int num_valid, n; ++ if (!loongarch_linux_read_watch_registers ( ++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 1)) ++ return false; ++ ++ num_valid = loongarch_linux_watch_get_num_valid (&watch_readback); ++ ++ for (n = 0; n < MAX_DEBUG_REGISTER && n < num_valid; n++) ++ if (loongarch_linux_watch_get_irwstat (&watch_readback, n) ++ & (R_MASK | W_MASK)) ++ { ++ CORE_ADDR t_addr, t_mask; ++ int t_irw; ++ struct loongarch_watchpoint *watch; ++ ++ t_addr = loongarch_linux_watch_get_addr (&watch_readback, n); ++ t_irw = loongarch_linux_watch_get_irw (&watch_readback, n) & IRW_MASK; ++ t_mask = loongarch_linux_watch_get_mask (&watch_readback, n); ++ ++ for (watch = current_watches; watch != NULL; watch = watch->next) ++ { ++ CORE_ADDR addr = watch->addr; ++ CORE_ADDR last_byte = addr + watch->len - 1; ++ ++ if ((t_irw & loongarch_linux_watch_type_to_irw (watch->type)) == 0) ++ { ++ /* Different type. */ ++ continue; ++ } ++ /* Check for overlap of even a single byte. */ ++ if (last_byte >= t_addr && addr <= t_addr + t_mask) ++ { ++ *paddr = addr; ++ return true; ++ } ++ } ++ } ++ return false; ++} ++ ++/* Target to_region_ok_for_hw_watchpoint implementation. Return 1 if ++ the specified region can be covered by the watch registers. */ ++ ++int ++loongarch_linux_nat_target::region_ok_for_hw_watchpoint (CORE_ADDR addr, ++ int len) ++{ ++ struct pt_watch_regs dummy_regs; ++ int i; ++ ++ if (!loongarch_linux_read_watch_registers ( ++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 0)) ++ return 0; ++ ++ dummy_regs = watch_readback; ++ /* Clear them out. */ ++ for (i = 0; i < loongarch_linux_watch_get_num_valid (&dummy_regs); i++) ++ { ++ loongarch_linux_watch_set_addr (&dummy_regs, i, 0); ++ loongarch_linux_watch_set_mask (&dummy_regs, i, 0); ++ loongarch_linux_watch_set_irw (&dummy_regs, i, 0); ++ } ++ return loongarch_linux_watch_try_one_watch (&dummy_regs, addr, len, 0); ++} ++ ++/* Write the mirrored watch register values for each thread. */ ++ ++static int ++write_watchpoint_regs (void) ++{ ++ struct lwp_info *lp; ++ int tid; ++ ++ ALL_LWPS (lp) ++ { ++ tid = lp->ptid.lwp (); ++ if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1) ++ perror_with_name (_ ("Couldn't write debug register")); ++ } ++ return 0; ++} ++ ++/* linux_nat_target::low_new_thread implementation. */ ++ ++void ++loongarch_linux_nat_target::low_new_thread (struct lwp_info *lp) ++{ ++ long tid = lp->ptid.lwp (); ++ ++ if (!loongarch_linux_read_watch_registers (tid, &watch_readback, ++ &watch_readback_valid, 0)) ++ return; ++ ++ if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1) ++ perror_with_name (_ ("Couldn't write debug register")); ++} ++ ++/* Target to_insert_watchpoint implementation. Try to insert a new ++ watch. Return zero on success. */ ++ ++int ++loongarch_linux_nat_target::insert_watchpoint (CORE_ADDR addr, int len, ++ enum target_hw_bp_type type, ++ struct expression *cond) ++{ ++ struct pt_watch_regs regs = ++ { ++ .max_valid = MAX_DEBUG_REGISTER, ++ }; ++ struct loongarch_watchpoint *new_watch; ++ struct loongarch_watchpoint **pw; ++ ++ int retval; ++ ++ if (!loongarch_linux_read_watch_registers ( ++ inferior_ptid.lwp (), &watch_readback, &watch_readback_valid, 0)) ++ return -1; ++ ++ if (len <= 0) ++ return -1; ++ ++ regs = watch_readback; ++ /* Add the current watches. */ ++ loongarch_linux_watch_populate_regs (current_watches, ®s); ++ ++ /* Now try to add the new watch. */ ++ if (!loongarch_linux_watch_try_one_watch ( ++ ®s, addr, len, loongarch_linux_watch_type_to_irw (type))) ++ return -1; ++ ++ /* It fit. Stick it on the end of the list. */ ++ new_watch = XNEW (struct loongarch_watchpoint); ++ new_watch->addr = addr; ++ new_watch->len = len; ++ new_watch->type = type; ++ new_watch->next = NULL; ++ ++ pw = ¤t_watches; ++ while (*pw != NULL) ++ pw = &(*pw)->next; ++ *pw = new_watch; ++ ++ watch_mirror = regs; ++ retval = write_watchpoint_regs (); ++ ++ if (show_debug_regs) ++ loongarch_show_dr ("insert_watchpoint", addr, len, type); ++ ++ return retval; ++} ++ ++/* Target to_remove_watchpoint implementation. Try to remove a watch. ++ Return zero on success. */ ++ ++int ++loongarch_linux_nat_target::remove_watchpoint (CORE_ADDR addr, int len, ++ enum target_hw_bp_type type, ++ struct expression *cond) ++{ ++ int retval; ++ int deleted_one; ++ ++ struct loongarch_watchpoint **pw; ++ struct loongarch_watchpoint *w; ++ ++ /* Search for a known watch that matches. Then unlink and free ++ it. */ ++ deleted_one = 0; ++ pw = ¤t_watches; ++ while ((w = *pw)) ++ { ++ if (w->addr == addr && w->len == len && w->type == type) ++ { ++ *pw = w->next; ++ xfree (w); ++ deleted_one = 1; ++ break; ++ } ++ pw = &(w->next); ++ } ++ ++ if (!deleted_one) ++ return -1; /* We don't know about it, fail doing nothing. */ ++ ++ /* At this point watch_readback is known to be valid because we ++ could not have added the watch without reading it. */ ++ gdb_assert (watch_readback_valid == 1); ++ ++ watch_mirror = watch_readback; ++ loongarch_linux_watch_populate_regs (current_watches, &watch_mirror); ++ ++ retval = write_watchpoint_regs (); ++ ++ if (show_debug_regs) ++ loongarch_show_dr ("remove_watchpoint", addr, len, type); ++ ++ return retval; ++} ++ ++/* Insert a hardware-assisted breakpoint at BP_TGT->reqstd_address. ++ Return 0 on success, -1 on failure. */ ++ ++int ++loongarch_linux_nat_target::insert_hw_breakpoint ( ++ struct gdbarch *gdbarch, struct bp_target_info *bp_tgt) ++{ ++ int ret; ++ CORE_ADDR addr = bp_tgt->placed_address = bp_tgt->reqstd_address; ++ int len = 4; ++ const enum target_hw_bp_type type = hw_execute; ++ ++ gdbarch_breakpoint_from_pc (gdbarch, &addr, &len); ++ ++ if (show_debug_regs) ++ fprintf_unfiltered ( ++ gdb_stdlog, "insert_hw_breakpoint on entry (addr=0x%08lx, len=%d))\n", ++ (unsigned long) addr, len); ++ ++ ret = insert_watchpoint (addr, len, type, NULL); ++ return ret; ++} ++ ++/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address. ++ Return 0 on success, -1 on failure. */ ++ ++int ++loongarch_linux_nat_target::remove_hw_breakpoint ( ++ struct gdbarch *gdbarch, struct bp_target_info *bp_tgt) ++{ ++ int ret; ++ CORE_ADDR addr = bp_tgt->placed_address; ++ int len = 4; ++ const enum target_hw_bp_type type = hw_execute; ++ ++ gdbarch_breakpoint_from_pc (gdbarch, &addr, &len); ++ ++ if (show_debug_regs) ++ fprintf_unfiltered ( ++ gdb_stdlog, "remove_hw_breakpoint on entry (addr=0x%08lx, len=%d))\n", ++ (unsigned long) addr, len); ++ ++ ret = remove_watchpoint (addr, len, type, NULL); ++ ++ return ret; ++} ++ ++/* Target to_close implementation. Free any watches and call the ++ super implementation. */ ++ ++void ++loongarch_linux_nat_target::close () ++{ ++ struct loongarch_watchpoint *w; ++ struct loongarch_watchpoint *nw; ++ ++ /* Clean out the current_watches list. */ ++ w = current_watches; ++ while (w) ++ { ++ nw = w->next; ++ xfree (w); ++ w = nw; ++ } ++ current_watches = NULL; ++ ++ linux_nat_trad_target::close (); ++} ++ ++void _initialize_loongarch_linux_nat (); ++void ++_initialize_loongarch_linux_nat () ++{ ++ add_setshow_boolean_cmd ( ++ "show-debug-regs", class_maintenance, &show_debug_regs, _ ("\ ++Set whether to show variables that mirror the LoongArch debug registers."), ++ _ ("\ ++Show whether to show variables that mirror the LoongArch debug registers."), ++ _ ("\ ++Use \"on\" to enable, \"off\" to disable.\n\ ++If enabled, the debug registers values are shown when GDB inserts\n\ ++or removes a hardware breakpoint or watchpoint, and when the inferior\n\ ++triggers a breakpoint or watchpoint."), ++ NULL, NULL, &maintenance_set_cmdlist, &maintenance_show_cmdlist); ++ ++ linux_target = &the_loongarch_linux_nat_target; ++ add_inf_child_target (&the_loongarch_linux_nat_target); ++} +diff --git gdb-10.2/gdb/loongarch-linux-tdep.c gdb-10.2/gdb/loongarch-linux-tdep.c +new file mode 100644 +index 0000000..5daabe3 +--- /dev/null ++++ gdb-10.2/gdb/loongarch-linux-tdep.c +@@ -0,0 +1,709 @@ ++/* Target-dependent code for GNU/Linux LoongArch. ++ ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "defs.h" ++#include "inferior.h" ++#include "gdbcore.h" ++#include "target.h" ++#include "solib-svr4.h" ++#include "osabi.h" ++#include "loongarch-tdep.h" ++#include "frame.h" ++#include "regcache.h" ++#include "trad-frame.h" ++#include "tramp-frame.h" ++#include "gdbtypes.h" ++#include "objfiles.h" ++#include "solib.h" ++#include "solist.h" ++#include "symtab.h" ++#include "target-descriptions.h" ++#include "loongarch-linux-tdep.h" ++#include "glibc-tdep.h" ++#include "linux-tdep.h" ++#include "xml-syscall.h" ++#include "gdbsupport/gdb_signals.h" ++ ++static void ++loongarch_supply_elf_gregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *gprs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->r && sizeof (loongarch_elf_gregset_t) <= len); ++ ++ int regsize = register_size (regcache->arch (), regs->r); ++ const gdb_byte *buf = NULL; ++ ++ if (regno == -1) ++ { ++ /* Set $r0 = 0. */ ++ regcache->raw_supply_zeroed (regs->r); ++ ++ for (int i = 1; i < 32; i++) ++ { ++ buf = (const gdb_byte*)gprs + regsize * i; ++ regcache->raw_supply (regs->r + i, (const void *)buf); ++ } ++ ++ /* Size base (orig_a0) = regsize * regs->orig_a0. */ ++ buf = (const gdb_byte*)gprs + regsize * regs->orig_a0; ++ regcache->raw_supply (regs->orig_a0, (const void *)buf); ++ ++ /* Size base (pc) = regsize * regs->pc. */ ++ buf = (const gdb_byte*)gprs + regsize * regs->pc; ++ regcache->raw_supply (regs->pc, (const void *)buf); ++ ++ /* Size base (badv) = regsize * regs->badv. */ ++ buf = (const gdb_byte*)gprs + regsize * regs->badv; ++ regcache->raw_supply (regs->badv, (const void *)buf); ++ } ++ else if (regs->r == regno) ++ regcache->raw_supply_zeroed (regno); ++ else if ((regs->r < regno && regno < regs->r + 32) ++ || (regs->orig_a0 == regno) ++ || (regs->pc == regno) ++ || (regs->badv == regno)) ++ { ++ /* Offset offset (regno) = regsize * (regno - regs->r). */ ++ buf = (const gdb_byte*)gprs + regsize * (regno - regs->r); ++ regcache->raw_supply (regno, (const void *)buf); ++ } ++} ++ ++static void ++loongarch_fill_elf_gregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *gprs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->r && sizeof (loongarch_elf_gregset_t) <= len); ++ int regsize = register_size (regcache->arch (), regs->r); ++ gdb_byte *buf = NULL; ++ ++ if (regno == -1) ++ { ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (gdb_byte *)gprs + regsize * i; ++ regcache->raw_collect (regs->r + i, (void *)buf); ++ } ++ ++ /* Size base (orig_a0) = regsize * regs->orig_a0. */ ++ buf = (gdb_byte *)gprs + regsize * regs->orig_a0; ++ regcache->raw_collect (regs->orig_a0, (void *)buf); ++ ++ /* Size base (pc) = regsize * regs->pc. */ ++ buf = (gdb_byte *)gprs + regsize * regs->pc; ++ regcache->raw_collect (regs->pc, (void *)buf); ++ ++ /* Size base (badv) = regsize * regs->badv. */ ++ buf = (gdb_byte *)gprs + regsize * regs->badv; ++ regcache->raw_collect (regs->badv, (void *)buf); ++ } ++ else if ((regs->r <= regno && regno < regs->r + 32) ++ ||(regs->orig_a0 == regno) ++ ||(regs->pc == regno) ++ ||(regs->badv == regno)) ++ { ++ /* Offset offset (regno) = regsize * (regno - regs->r). */ ++ buf = (gdb_byte *)gprs + regsize * (regno - regs->r); ++ regcache->raw_collect (regno, (void *)buf); ++ } ++} ++ ++const struct regset loongarch_elf_gregset = ++{ ++ NULL, ++ loongarch_supply_elf_gregset, ++ loongarch_fill_elf_gregset, ++}; ++ ++static void ++loongarch_supply_elf_fpregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *fprs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->f && sizeof (loongarch_elf_fpregset_t) <= len); ++ ++ const gdb_byte *buf = NULL; ++ int fprsize = register_size (regcache->arch (), regs->f); ++ int fccsize = register_size (regcache->arch (), regs->fcc); ++ ++ if (regno == -1) ++ { ++ /* 32 fprs. */ ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (const gdb_byte *)fprs + fprsize * i; ++ regcache->raw_supply (regs->f + i, (const void *)buf); ++ } ++ ++ /* 8 fccs , base (fcc) = 32 * sizeof (fpr). */ ++ buf = (const gdb_byte *)fprs + fprsize * 32; ++ for (int i = 0; i < 8; i++) ++ { ++ regcache->raw_supply (regs->fcc + i, (const void *)buf); ++ buf += fccsize; ++ } ++ ++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */ ++ buf = (const gdb_byte *)fprs + 32 * fprsize + 8 * fccsize; ++ regno = regs->fcsr; ++ } ++ else if (regs->f <= regno && regno < regs->f + 32) ++ { ++ /* Offset offset (regno - f) = (regno - regs->f) * sizeof (fpr). */ ++ buf = (const gdb_byte *)fprs + fprsize * (regno - regs->f); ++ } ++ else if (regs->fcc <= regno && regno < regs->fcc + 8) ++ { ++ /* Size base (fcc) + offset (regno - fcc) ++ = 32 * sizeof (fpr) + (regno - regs->fcc) * sizeof (fcc). */ ++ buf = (const gdb_byte *)fprs + 32 * fprsize ++ + (regno - regs->fcc) * fccsize; ++ } ++ else if (regs->fcsr == regno) ++ { ++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */ ++ buf = (const gdb_byte *)fprs + 32 * fprsize + 8 * fccsize; ++ } ++ else ++ { ++ return; ++ } ++ ++ /* Supply register. */ ++ regcache->raw_supply (regno, (const void *)buf); ++} ++ ++static void ++loongarch_fill_elf_fpregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *fprs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->f && sizeof (loongarch_elf_fpregset_t) <= len); ++ gdb_byte *buf = NULL; ++ int fprsize = register_size (regcache->arch (), regs->f); ++ int fccsize = register_size (regcache->arch (), regs->fcc); ++ ++ if (regno == -1) ++ { ++ /* 32 fprs. */ ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (gdb_byte *)fprs + fprsize * i; ++ regcache->raw_collect (regs->f + i, (void *)buf); ++ } ++ ++ /* 8 fccs , base (fcc) = 32 * sizeof (fpr). */ ++ buf = (gdb_byte *)fprs + fprsize * 32; ++ for (int i = 0; i < 8; i++) ++ { ++ regcache->raw_collect (regs->fcc + i, (void *)buf); ++ buf += fccsize; ++ } ++ ++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */ ++ buf = (gdb_byte *)fprs + fprsize * 32 + fccsize * 8; ++ regno = regs->fcsr; ++ } ++ else if (regs->f <= regno && regno < regs->f + 32) ++ { ++ /* Offset offset (regno - f) = (regno - regs->f) * sizeof (fpr). */ ++ buf = (gdb_byte *)fprs + fprsize * (regno - regs->f); ++ } ++ else if (regs->fcc <= regno && regno < regs->fcc + 8) ++ { ++ /* Size base (fcc) + offset (regno - fcc) ++ = 32 * sizeof (fpr) + (regno - regs->fcc) * sizeof (fcc). */ ++ buf = (gdb_byte *)fprs + 32 * fprsize + (regno - regs->fcc) * fccsize; ++ } ++ else if (regs->fcsr == regno) ++ { ++ /* Size base (fcsr) = 32 * sizeof (fpr) + 8 * sizeof (fcc). */ ++ buf = (gdb_byte *)fprs + 32 * fprsize + 8 * fccsize; ++ } ++ else ++ { ++ return; ++ } ++ ++ /* Supply register. */ ++ regcache->raw_collect (regno, (void *)buf); ++} ++ ++const struct regset loongarch_elf_fpregset = ++{ ++ NULL, ++ loongarch_supply_elf_fpregset, ++ loongarch_fill_elf_fpregset, ++}; ++ ++static void ++loongarch_supply_elf_cpucfgregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *cpucfgs, size_t len) ++{ ++} ++ ++static void ++loongarch_fill_elf_cpucfgregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *cpucfgs, size_t len) ++{ ++ ULONGEST xfered_len; ++ target_xfer_partial (current_inferior ()->top_target (), ++ /* current_top_target (),*/ TARGET_OBJECT_LARCH, ++ "cpucfg", (gdb_byte *) cpucfgs, NULL, 0, len, ++ &xfered_len); ++ memset ((gdb_byte *) cpucfgs + xfered_len, 0, len - xfered_len); ++} ++ ++const struct regset loongarch_elf_cpucfgregset = ++{ ++ NULL, ++ loongarch_supply_elf_cpucfgregset, ++ loongarch_fill_elf_cpucfgregset, ++}; ++ ++static void ++loongarch_supply_elf_lbtregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *lbtrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->scr && sizeof (loongarch_elf_lbtregset_t) <= len); ++ ++ const gdb_byte *buf = NULL; ++ int scrsize = register_size (regcache->arch (), regs->scr); ++ int efsize = register_size (regcache->arch (), regs->EFLAG); ++ ++ if (regno == -1) ++ { ++ /* 4 scrs. */ ++ for (int i = 0; i < 4; i++) ++ { ++ buf = (const gdb_byte *)lbtrs + scrsize * i; ++ regcache->raw_supply (regs->scr + i, (const void *)buf); ++ } ++ ++ /* Size base (EFLAG) = 4 * sizeof (scr). */ ++ buf = (const gdb_byte *)lbtrs + scrsize * 4; ++ regcache->raw_supply (regs->EFLAG, (const void *)buf); ++ ++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */ ++ buf = (const gdb_byte *)lbtrs + scrsize * 4 + efsize; ++ regno = regs->x86_top; ++ } ++ else if (regs->scr <= regno && regno < regs->scr + 4) ++ /* Offset offset (EFLAG) = sizeof (scr) * (regno - regs->scr). */ ++ buf = (const gdb_byte *)lbtrs + scrsize * (regno - regs->scr); ++ else if (regs->EFLAG == regno) ++ /* Size base (EFLAG) = 4 * sizeof (scr). */ ++ buf = (const gdb_byte *)lbtrs + scrsize * 4; ++ else if (regs->x86_top == regno) ++ { ++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */ ++ buf = (const gdb_byte *)lbtrs + scrsize * 4 + efsize; ++ } ++ else ++ { ++ return; ++ } ++ ++ regcache->raw_supply (regno, (const void *)buf); ++} ++ ++static void ++loongarch_fill_elf_lbtregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *lbtrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->scr && sizeof (loongarch_elf_lbtregset_t) <= len); ++ ++ gdb_byte *buf = NULL; ++ int scrsize = register_size (regcache->arch (), regs->scr); ++ int efsize = register_size (regcache->arch (), regs->EFLAG); ++ ++ if (regno == -1) ++ { ++ ++ /* 4 scrs. */ ++ for (int i = 0; i < 4; i++) ++ { ++ buf = (gdb_byte *)lbtrs + scrsize * i; ++ regcache->raw_collect (regs->scr + i, (void *)buf); ++ } ++ ++ /* Size base (EFLAG) = 4 * sizeof (scr). */ ++ buf = (gdb_byte *)lbtrs + scrsize * 4; ++ regcache->raw_collect (regs->EFLAG, (void *)buf); ++ ++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */ ++ buf = (gdb_byte *)lbtrs + scrsize * 4 + efsize; ++ regno = regs->x86_top; ++ } ++ else if (regs->scr <= regno && regno < regs->scr + 4) ++ /* Offset offset (EFLAG) = sizeof (scr) * (regno - regs->scr). */ ++ buf = (gdb_byte *)lbtrs + scrsize * (regno - regs->scr); ++ else if (regs->EFLAG == regno) ++ /* Size base (EFLAG) = 4 * sizeof (scr). */ ++ buf = (gdb_byte *)lbtrs + scrsize * 4; ++ else if (regs->x86_top == regno) ++ /* Size base (x86_top) = 4 * sizeof (scr) + sizeof (EFLAG). */ ++ buf = (gdb_byte *)lbtrs + scrsize * 4 + efsize; ++ else ++ { ++ return; ++ } ++ ++ regcache->raw_collect (regno, (void *)buf); ++} ++ ++const struct regset loongarch_elf_lbtregset = ++{ ++ NULL, ++ loongarch_supply_elf_lbtregset, ++ loongarch_fill_elf_lbtregset, ++}; ++ ++static void ++loongarch_supply_elf_lsxregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *lsxrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->vr && sizeof (loongarch_elf_lsxregset_t) <= len); ++ ++ const gdb_byte *buf = NULL; ++ int regsize = register_size (regcache->arch (), regs->vr); ++ ++ if (regno == -1) ++ { ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (const gdb_byte *)lsxrs + regsize * i; ++ regcache->raw_supply (regs->vr + i, (const void *)buf); ++ } ++ } ++ else if (regs->vr <= regno && regno < regs->vr + 32) ++ { ++ buf = (const gdb_byte *)lsxrs + regsize * (regno - regs->vr); ++ regcache->raw_supply (regno, (const void *)buf); ++ } ++} ++ ++static void ++loongarch_fill_elf_lsxregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *lsxrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->vr && sizeof (loongarch_elf_lsxregset_t) <= len); ++ ++ gdb_byte *buf = NULL; ++ int regsize = register_size (regcache->arch (), regs->vr); ++ ++ if (regno == -1) ++ { ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (gdb_byte *)lsxrs + regsize * i; ++ regcache->raw_collect (regs->vr + i, (void *)buf); ++ } ++ } ++ else if (regs->vr <= regno && regno < regs->vr + 32) ++ { ++ buf = (gdb_byte *)lsxrs + regsize * (regno - regs->vr); ++ regcache->raw_collect (regno, (void *)buf); ++ } ++} ++ ++const struct regset loongarch_elf_lsxregset = ++{ ++ NULL, ++ loongarch_supply_elf_lsxregset, ++ loongarch_fill_elf_lsxregset, ++}; ++ ++static void ++loongarch_supply_elf_lasxregset (const struct regset *r, ++ struct regcache *regcache, int regno, ++ const void *lasxrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->xr && sizeof (loongarch_elf_lasxregset_t) <= len); ++ ++ const gdb_byte *buf = NULL; ++ int regsize = register_size (regcache->arch (), regs->xr); ++ ++ if (regno == -1) ++ { ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (const gdb_byte *)lasxrs + regsize * i; ++ regcache->raw_supply (regs->xr + i, (const void *)buf); ++ } ++ } ++ else if (regs->xr <= regno && regno < regs->xr + 32) ++ { ++ buf = (const gdb_byte *)lasxrs + regsize * (regno - regs->xr); ++ regcache->raw_supply (regno, (const void *)buf); ++ } ++} ++ ++static void ++loongarch_fill_elf_lasxregset (const struct regset *r, ++ const struct regcache *regcache, int regno, ++ void *lasxrs, size_t len) ++{ ++ auto regs = &gdbarch_tdep (regcache->arch ())->regs; ++ gdb_assert (0 <= regs->xr && sizeof (loongarch_elf_lasxregset_t) <= len); ++ ++ gdb_byte *buf = NULL; ++ int regsize = register_size (regcache->arch (), regs->xr); ++ ++ if (regno == -1) ++ { ++ for (int i = 0; i < 32; i++) ++ { ++ buf = (gdb_byte *)lasxrs + regsize * i; ++ regcache->raw_collect (regs->xr + i, (void *)buf); ++ } ++ } ++ else if (regs->xr <= regno && regno < regs->xr + 32) ++ { ++ buf = (gdb_byte *)lasxrs + regsize * (regno - regs->xr); ++ regcache->raw_collect (regno, (void *)buf); ++ } ++} ++ ++const struct regset loongarch_elf_lasxregset = ++{ ++ NULL, ++ loongarch_supply_elf_lasxregset, ++ loongarch_fill_elf_lasxregset, ++}; ++ ++static void ++loongarch_linux_iterate_over_regset_sections ( ++ struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, ++ const struct regcache *regcache) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ if (0 <= regs->r) ++ cb (".reg", sizeof (loongarch_elf_gregset_t), ++ sizeof (loongarch_elf_gregset_t), &loongarch_elf_gregset, NULL, ++ cb_data); ++ if (0 <= regs->f) ++ cb (".reg2", sizeof (loongarch_elf_fpregset_t), ++ sizeof (loongarch_elf_fpregset_t), &loongarch_elf_fpregset, NULL, ++ cb_data); ++ do ++ { ++ uint32_t t; ++ ULONGEST xfered_len; ++ if (target_xfer_partial (current_inferior ()->top_target (), ++ /* current_top_target (),*/ TARGET_OBJECT_LARCH, ++ "cpucfg", (gdb_byte *) &t, NULL, 0, sizeof (t), ++ &xfered_len) != TARGET_XFER_OK) ++ break; ++ cb (".reg-loongarch-cpucfg", 64 * 4, 64 * 4, &loongarch_elf_cpucfgregset, ++ "LoongArch CPU config", cb_data); ++ } ++ while (0); ++ if (0 <= regs->scr) ++ cb (".reg-loongarch-lbt", sizeof (loongarch_elf_lbtregset_t), ++ sizeof (loongarch_elf_lbtregset_t), &loongarch_elf_lbtregset, ++ "LoongArch Binary Translation", cb_data); ++ if (0 <= regs->vr) ++ cb (".reg-loongarch-lsx", sizeof (loongarch_elf_lsxregset_t), ++ sizeof (loongarch_elf_lsxregset_t), &loongarch_elf_lsxregset, ++ "LoongArch SIMD Extension", cb_data); ++ if (0 <= regs->xr) ++ cb (".reg-loongarch-lasx", sizeof (loongarch_elf_lasxregset_t), ++ sizeof (loongarch_elf_lasxregset_t), &loongarch_elf_lasxregset, ++ "LoongArch Advanced SIMD Extension", cb_data); ++} ++ ++static const struct target_desc * ++loongarch_linux_core_read_description (struct gdbarch *gdbarch, ++ struct target_ops *target, bfd *abfd) ++{ ++ int rlen, flen, fpu64, lbt, lsx, lasx; ++ ++ rlen = 64; ++ ++ fpu64 = !!bfd_get_section_by_name (abfd, ".reg2"); ++ lbt = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lbt"); ++ lsx = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lsx"); ++ lasx = !!bfd_get_section_by_name (abfd, ".reg-loongarch-lasx"); ++ ++ if (fpu64) ++ flen = 64; ++ else ++ flen = 0; ++ ++ return loongarch_create_target_description (rlen, flen, lbt, lsx, lasx); ++} ++ ++/* The RT signal frames look like this: ++ struct rt_sigframe { ++ struct siginfo rs_info; ++ struct ucontext rs_uctx; ++ }; ++ ++ struct ucontext { ++ unsigned long uc_flags; ++ struct ucontext *uc_link; ++ stack_t uc_stack; ++ sigset_t uc_sigmask; ++ _u8 __unused[1024 / 8 - sizeof(sigset_t)]; ++ struct sigcontext uc_mcontext; ++ }; ++}; */ ++ ++#define RTSIGFRAME_SIGINFO_SIZE 128 ++#define UCONTEXT_SIGCONTEXT_OFFSET 176 ++#define RTSIGFRAME_SIGCONTEXT_OFFSET (RTSIGFRAME_SIGINFO_SIZE \ ++ + UCONTEXT_SIGCONTEXT_OFFSET) ++ ++static void ++loongarch_linux_lp64_sigframe_init (const struct tramp_frame *self, ++ struct frame_info *this_frame, ++ struct trad_frame_cache *this_cache, ++ CORE_ADDR func) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (this_frame); ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ CORE_ADDR frame_sp = get_frame_sp (this_frame); ++ ++ CORE_ADDR sigcontext_base = frame_sp + RTSIGFRAME_SIGCONTEXT_OFFSET; ++ int i; ++ ++ trad_frame_set_reg_addr (this_cache, regs->pc, sigcontext_base); ++ for (i = 0; i < 32; i++) ++ trad_frame_set_reg_addr (this_cache, regs->r + i, ++ sigcontext_base + 8 + i * 8); ++ ++ trad_frame_set_id (this_cache, frame_id_build (frame_sp, func)); ++} ++ ++static const struct tramp_frame loongarch_linux_lp64_rt_sigframe = ++{ ++ SIGTRAMP_FRAME, ++ 4, ++ { /* From $kernel/arch/loongarch/vdso/sigreturn.S. */ ++ /* ori $r11, $r0, 0x8b(__NR_rt_sigreturn) */ ++ { 0x03822c0b, ULONGEST_MAX }, ++ { 0x002b0000, ULONGEST_MAX }, /* syscall 0 */ ++ { TRAMP_SENTINEL_INSN, ULONGEST_MAX } }, ++ loongarch_linux_lp64_sigframe_init, ++ NULL ++}; ++ ++/* Return the current system call's number present in the ++ a7 register. When the function fails, it returns -1. */ ++ ++static LONGEST ++loongarch_linux_get_syscall_number (struct gdbarch *gdbarch, ++ thread_info *thread) ++{ ++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ++ auto regs = &tdep->regs; ++ struct regcache *regcache = get_thread_regcache (thread); ++ LONGEST ret; ++ ++ if ((EF_LOONGARCH_IS_LP64 (tdep->ef_abi)) ++ && (REG_VALID == regcache_cooked_read_signed (regcache, regs->r + 11, &ret))) ++ return ret; ++ ++ return -1; ++} ++ ++static CORE_ADDR ++loongarch_linux_syscall_next_pc (struct frame_info *frame) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (frame); ++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ++ auto regs = &tdep->regs; ++ ULONGEST a7 = get_frame_register_unsigned (frame, regs->r + 11); ++ ++ /* If we are about to make a sigreturn syscall, use the unwinder to ++ decode the signal frame. */ ++ if ((EF_LOONGARCH_IS_LP64 (tdep->ef_abi)) ++ && (a7 == 0x8b /* LP64: __NR_rt_sigreturn. */)) ++ return frame_unwind_caller_pc (get_current_frame ()); ++ ++ return -1; ++} ++ ++static void ++loongarch_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) ++{ ++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ++ ++ linux_init_abi (info, gdbarch); /* FIXME displaced step support. */ ++ ++ if (EF_LOONGARCH_IS_ILP32 (tdep->ef_abi)) ++ set_solib_svr4_fetch_link_map_offsets ( ++ gdbarch, svr4_ilp32_fetch_link_map_offsets); ++ ++ else if (EF_LOONGARCH_IS_LP64 (tdep->ef_abi)) ++ { ++ set_solib_svr4_fetch_link_map_offsets (gdbarch, ++ svr4_lp64_fetch_link_map_offsets); ++ tramp_frame_prepend_unwinder (gdbarch, ++ &loongarch_linux_lp64_rt_sigframe); ++ tdep->syscall_next_pc = loongarch_linux_syscall_next_pc; ++ ++ set_gdbarch_get_syscall_number (gdbarch, ++ loongarch_linux_get_syscall_number); ++ } ++ ++ /* GNU/Linux uses the dynamic linker included in the GNU C Library. */ ++ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver); ++ ++ /* Enable TLS support. */ ++ set_gdbarch_fetch_tls_load_module_address (gdbarch, ++ svr4_fetch_objfile_link_map); ++ ++ set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); ++ ++ /* Core file support. */ ++ set_gdbarch_iterate_over_regset_sections ( ++ gdbarch, loongarch_linux_iterate_over_regset_sections); ++ set_gdbarch_core_read_description (gdbarch, ++ loongarch_linux_core_read_description); ++} ++ ++void _initialize_loongarch_linux_tdep (); ++void ++_initialize_loongarch_linux_tdep () ++{ ++ gdbarch_register_osabi (bfd_arch_loongarch, bfd_mach_loongarch32, ++ GDB_OSABI_LINUX, loongarch_linux_init_abi); ++ gdbarch_register_osabi (bfd_arch_loongarch, bfd_mach_loongarch64, ++ GDB_OSABI_LINUX, loongarch_linux_init_abi); ++} +diff --git gdb-10.2/gdb/loongarch-linux-tdep.h gdb-10.2/gdb/loongarch-linux-tdep.h +new file mode 100644 +index 0000000..bb70043 +--- /dev/null ++++ gdb-10.2/gdb/loongarch-linux-tdep.h +@@ -0,0 +1,48 @@ ++/* GNU/Linux on LoongArch target support, prototypes. ++ ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef LOONGARCH_LINUX_TDEP_H ++#define LOONGARCH_LINUX_TDEP_H ++ ++#include <regset.h> ++ ++#define ELF_NGREG 45 ++#define ELF_NFPREG 34 ++ ++typedef unsigned long loongarch_elf_gregset_t[ELF_NGREG]; ++extern const struct regset loongarch_elf_gregset; ++ ++typedef double loongarch_elf_fpregset_t[ELF_NFPREG]; ++extern const struct regset loongarch_elf_fpregset; ++ ++/* Regset variable size. */ ++extern const struct regset loongarch_elf_cpucfg; ++ ++/* 4 SCRs + 4-byte EFLAG + 1-byte x86_top. */ ++typedef uint64_t loongarch_elf_lbtregset_t[5]; ++extern const struct regset loongarch_elf_lbtregset; ++ ++typedef uint64_t loongarch_elf_lsxregset_t[32 * 2]; ++extern const struct regset loongarch_elf_lsxregset; ++ ++typedef uint64_t loongarch_elf_lasxregset_t[32 * 4]; ++extern const struct regset loongarch_elf_lasxregset; ++ ++#endif +diff --git gdb-10.2/gdb/loongarch-tdep.c gdb-10.2/gdb/loongarch-tdep.c +new file mode 100644 +index 0000000..422c80b +--- /dev/null ++++ gdb-10.2/gdb/loongarch-tdep.c +@@ -0,0 +1,1926 @@ ++/* Target-dependent code for GNU/Linux LoongArch. ++ ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "defs.h" ++#include "frame.h" ++#include "inferior.h" ++#include "symtab.h" ++#include "value.h" ++#include "gdbcmd.h" ++#include "language.h" ++#include "gdbcore.h" ++#include "symfile.h" ++#include "objfiles.h" ++#include "gdbtypes.h" ++#include "target.h" ++#include "arch-utils.h" ++#include "regcache.h" ++#include "osabi.h" ++#include "block.h" ++#include "reggroups.h" ++#include "elf-bfd.h" ++#include "symcat.h" ++#include "dis-asm.h" ++#include "frame-unwind.h" ++#include "frame-base.h" ++#include "trad-frame.h" ++#include "infcall.h" ++#include "floatformat.h" ++#include "remote.h" ++#include "target-descriptions.h" ++#include "dwarf2/frame.h" ++#include "user-regs.h" ++#include "valprint.h" ++#include "gdbsupport/common-defs.h" ++#include "cli/cli-decode.h" ++#include "observable.h" ++#include "loongarch-tdep.h" ++#include "arch/loongarch.h" ++ ++#include <algorithm> ++ ++/* Figure out where the longjmp will land. ++ We expect the first arg to be a pointer to the jmp_buf structure ++ from which we extract the pc (LOONGARCH_JB_PC) that we will land ++ at. The pc is copied into PC. This routine returns 1 on ++ success. */ ++#define LOONGARCH_JB_PC 0 ++ ++static int ++loongarch_rlen (struct gdbarch *gdbarch) ++{ ++ if (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi)) ++ return 64; ++ else if (EF_LOONGARCH_IS_ILP32 (gdbarch_tdep (gdbarch)->ef_abi)) ++ return 32; ++ else ++ gdb_assert_not_reached ("unknown ABI"); ++ return 0; ++} ++ ++static insn_t ++loongarch_fetch_instruction (CORE_ADDR addr, int *errp) ++{ ++ size_t insnlen = loongarch_insn_length (0); ++ gdb_byte buf[insnlen]; ++ int err; ++ ULONGEST ret; ++ ++ err = target_read_memory (addr, buf, insnlen); ++ if (errp != NULL) ++ *errp = err; ++ if (err != 0) ++ { ++ if (errp == NULL) ++ memory_error (TARGET_XFER_E_IO, addr); ++ return 0; ++ } ++ ret = extract_unsigned_integer (buf, insnlen, BFD_ENDIAN_LITTLE); ++ return ret; ++} ++ ++static int ++loongarch_insn_is_branch_and_must_branch (insn_t insn) ++{ ++ if ((insn & 0xfc000000) == 0x4c000000 /* jirl r0:5,r5:5,s10:16<<2 */ ++ || (insn & 0xfc000000) == 0x50000000 /* b sb0:10|10:16<<2 */ ++ || (insn & 0xfc000000) == 0x54000000) /* bl sb0:10|10:16<<2 */ ++ return 1; ++ return 0; ++} ++ ++static int ++loongarch_insn_is_branch (insn_t insn) ++{ ++ if (loongarch_insn_is_branch_and_must_branch (insn) ++ || (insn & 0xfc000000) == 0x40000000 /* beqz r5:5,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000000) == 0x44000000 /* bnez r5:5,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000300) == 0x48000000 /* bceqz c5:3,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000300) == 0x48000100 /* bcnez c5:3,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000000) == 0x58000000 /* beq r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x5c000000 /* bne r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x60000000 /* blt r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x64000000 /* bge r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x68000000 /* bltu r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x6c000000) /* bgeu r5:5,r0:5,sb10:16<<2 */ ++ return 1; ++ return 0; ++} ++ ++static CORE_ADDR ++loongarch_next_pc_if_branch (struct regcache *regcache, CORE_ADDR cur_pc, ++ insn_t insn) ++{ ++ struct gdbarch *gdbarch = regcache->arch (); ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ CORE_ADDR next_pc; ++ ++ if ((insn & 0xfc000000) == 0x40000000 /* beqz r5:5,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000000) == 0x44000000 /* bnez r5:5,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000300) == 0x48000000 /* bceqz c5:3,sb0:5|10:16<<2 */ ++ || (insn & 0xfc000300) == 0x48000100) /* bcnez c5:3,sb0:5|10:16<<2 */ ++ next_pc = cur_pc + loongarch_decode_imm ("0:5|10:16<<2", insn, 1); ++ else if ((insn & 0xfc000000) == 0x4c000000) /* jirl r0:5,r5:5,s10:16<<2 */ ++ next_pc = regcache_raw_get_signed ( ++ regcache, regs->r + loongarch_decode_imm ("5:5", insn, 0)) ++ + loongarch_decode_imm ("10:16<<2", insn, 1); ++ else if ((insn & 0xfc000000) == 0x50000000 /* b sb0:10|10:16<<2 */ ++ || (insn & 0xfc000000) == 0x54000000) /* bl sb0:10|10:16<<2 */ ++ next_pc = cur_pc + loongarch_decode_imm ("0:10|10:16<<2", insn, 1); ++ else if ((insn & 0xfc000000) == 0x58000000 /* beq r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x5c000000 /* bne r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x60000000 /* blt r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x64000000 /* bge r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) == 0x68000000 /* bltu r5:5,r0:5,sb10:16<<2 */ ++ || (insn & 0xfc000000) ++ == 0x6c000000) /* bgeu r5:5,r0:5,sb10:16<<2 */ ++ next_pc = cur_pc + loongarch_decode_imm ("10:16<<2", insn, 1); ++ else ++ gdb_assert_not_reached ("I don't know what branch is this"); ++ ++ return next_pc; ++} ++ ++/* Checks for an atomic sequence of instructions beginning with a LL/LLD ++ instruction and ending with a SC/SCD instruction. If such a sequence ++ is found, attempt to step through it. A breakpoint is placed at the end of ++ the sequence. */ ++ ++static std::vector<CORE_ADDR> ++loongarch_deal_with_atomic_sequence (struct regcache *regcache, CORE_ADDR pc) ++{ ++ struct gdbarch *gdbarch = regcache->arch (); ++ CORE_ADDR next_pc; ++ std::vector<CORE_ADDR> next_pcs; ++ insn_t insn = loongarch_fetch_instruction (pc, NULL); ++ size_t insnlen = loongarch_insn_length (insn); ++ int i, atomic_sequence_length, found_atomic_sequence_endpoint; ++ ++ if ((insn & 0xff000000) != 0x20000000 /* ll.w */ ++ && (insn & 0xff000000) != 0x22000000) /* ll.d */ ++ return {}; ++ ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Single step: PC: %s OK, I found ll\\.[wd] here. It's " ++ "atomic sequence?\n", ++ paddress (gdbarch, pc)); ++ ++ atomic_sequence_length = 30; /* Magic. */ ++ found_atomic_sequence_endpoint = 0; ++ for (pc += insnlen, i = 0; i < atomic_sequence_length; pc += insnlen, i++) ++ { ++ insn = loongarch_fetch_instruction (pc, NULL); ++ insnlen = loongarch_insn_length (insn); ++ ++ if (loongarch_insn_is_branch_and_must_branch (insn)) ++ { ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Single step: PC: %s Must branch here. Treat it normally.\n", ++ paddress (gdbarch, pc)); ++ break; ++ } ++ else if (loongarch_insn_is_branch (insn)) ++ { ++ next_pc = loongarch_next_pc_if_branch (regcache, pc, insn); ++ ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Single step: PC: %s May branch inside and " ++ "target is %s. Breakpoint there.\n", ++ paddress (gdbarch, pc), ++ paddress (gdbarch, next_pc)); ++ ++ next_pcs.push_back (next_pc); ++ } ++ else if ((insn & 0xff000000) == 0x21000000 /* sc.w */ ++ || (insn & 0xff000000) == 0x23000000) /* sc.d */ ++ { ++ found_atomic_sequence_endpoint = 1; ++ next_pc = pc + insnlen; ++ ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Single step: PC: %s I found sc\\.[wd] and " ++ "atomic sequence ends at here.\n" ++ "Breakpoint next pc: %s.\n", ++ paddress (gdbarch, pc), ++ paddress (gdbarch, next_pc)); ++ ++ next_pcs.push_back (next_pc); ++ break; ++ } ++ } ++ ++ if (!found_atomic_sequence_endpoint) ++ { ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Single step: PC: %s Not ends with sc\\.[wd] in %d insns?\n" ++ "Treat it as not atomic sequence.\n", ++ paddress (gdbarch, pc), atomic_sequence_length); ++ ++ return {}; ++ } ++ ++ return next_pcs; ++} ++ ++/* Implement LoongArch software single step. */ ++ ++std::vector<CORE_ADDR> ++loongarch_software_single_step (struct regcache *regcache); ++std::vector<CORE_ADDR> ++loongarch_software_single_step (struct regcache *regcache) ++{ ++ struct gdbarch *gdbarch = regcache->arch (); ++ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ++ CORE_ADDR pc = regcache_read_pc (regcache); ++ std::vector<CORE_ADDR> next_pcs ++ = loongarch_deal_with_atomic_sequence (regcache, pc); ++ ++ if (!next_pcs.empty ()) ++ return next_pcs; ++ ++ insn_t insn = loongarch_fetch_instruction (pc, NULL); ++ size_t insnlen = loongarch_insn_length (insn); ++ CORE_ADDR next = pc + insnlen; ++ ++ if ((insn & 0xffff8000) == 0x002b0000 && tdep->syscall_next_pc) ++ { ++ CORE_ADDR syscall_next = tdep->syscall_next_pc (get_current_frame ()); ++ if (syscall_next != -1) ++ { ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "PC: %s Syscall found. Next pc is %s.\n", ++ paddress (gdbarch, pc), ++ paddress (gdbarch, syscall_next)); ++ return {syscall_next}; ++ } ++ } ++ ++ if (loongarch_insn_is_branch (insn)) ++ { ++ CORE_ADDR branch_tgt = loongarch_next_pc_if_branch (regcache, pc, insn); ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, "PC: %s Next pc is %s if branch, %s for non-branch.\n", ++ paddress (gdbarch, pc), paddress (gdbarch, branch_tgt), ++ paddress (gdbarch, next)); ++ return {next, branch_tgt}; ++ } ++ else ++ { ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, "PC: %s Next pc is %s.\n", ++ paddress (gdbarch, pc), paddress (gdbarch, next)); ++ return {next}; ++ } ++} ++ ++/* Callback function for user_reg_add. */ ++ ++static struct value * ++value_of_loongarch_user_reg (struct frame_info *frame, const void *baton) ++{ ++ return value_of_register ((long long) baton, frame); ++} ++ ++/* Implement the register_name gdbarch method. */ ++ ++static const char * ++loongarch_register_name (struct gdbarch *gdbarch, int regnum) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ ++ if ((0 <= regs->r && regs->r <= regnum && regnum < regs->r + 32) ++ && (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi))) ++ return loongarch_r_lp64_name[regnum - regs->r] + 1; ++ ++ else if ((0 <= regs->f && regs->f <= regnum && regnum < regs->f + 32) ++ && (EF_LOONGARCH_IS_LP64 (gdbarch_tdep (gdbarch)->ef_abi))) ++ return loongarch_f_lp64_name[regnum - regs->f] + 1; ++ ++ return tdesc_register_name (gdbarch, regnum); ++} ++ ++/* Analyze the function prologue from START_PC to LIMIT_PC. Builds ++ the associated FRAME_CACHE if not null. ++ Return the address of the first instruction past the prologue. */ ++ ++static CORE_ADDR ++loongarch_scan_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc, ++ CORE_ADDR limit_pc, struct frame_info *this_frame, ++ struct trad_frame_cache *this_cache) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ int rlen_is_64b = (loongarch_rlen (gdbarch) == 64); ++ ++ CORE_ADDR cur_pc, prologue_end = 0; ++ insn_t insn; ++ size_t insnlen; ++ ++ int sp = regs->sp - regs->r; ++ ++ long frame_offset = 0; ++ int non_prologue_insns = 0; ++ int cfa_unknown = 0; ++ ++ /* Try to trace li. */ ++ int64_t r_value[32] = {0}; ++ int r_value_known[32] = {1, 0}; ++ ++ long r_cfa_offset[32] = {0}; ++ int r_cfa_offset_p[32] = {0}; ++ ++ long f_cfa_offset[32] = {0}; ++ int f_cfa_offset_p[32] = {0}; ++ ++ if (start_pc + 80 < limit_pc) ++ limit_pc = start_pc + 80; ++ ++ for (cur_pc = start_pc; cur_pc < limit_pc; cur_pc += insnlen) ++ { ++ int rd, rj, rk; ++ int64_t si12, si20, si14; ++ ++ insn = loongarch_fetch_instruction (cur_pc, NULL); ++ insnlen = loongarch_insn_length (insn); ++ ++ rd = loongarch_decode_imm ("0:5", insn, 0); ++ rj = loongarch_decode_imm ("5:5", insn, 0); ++ rk = loongarch_decode_imm ("10:5", insn, 0); ++ si12 = loongarch_decode_imm ("10:12", insn, 1); ++ si20 = loongarch_decode_imm ("5:20", insn, 1); ++ si14 = loongarch_decode_imm ("10:14<<2", insn, 1); ++ ++ if ((((insn & 0xffc00000) == 0x02800000 /* addi.w sp,sp,si12 */ ++ && !rlen_is_64b) ++ || ((insn & 0xffc00000) == 0x02c00000 /* addi.d sp,sp,si12 */ ++ && rlen_is_64b)) ++ && rd == sp && rj == sp) ++ { ++ if (si12 < 0) ++ frame_offset -= si12; ++ else ++ /* Exit loop if a positive stack adjustment is found, which ++ usually means that the stack cleanup code in the function ++ epilogue is reached. */ ++ break; ++ prologue_end = cur_pc + insnlen; ++ } ++ else if ((((insn & 0xffc00000) == 0x29800000 /* st.w rd,sp,si12 */ ++ && !rlen_is_64b) ++ || ((insn & 0xffc00000) == 0x29c00000 /* st.d rd,sp,si12 */ ++ && rlen_is_64b)) ++ && rj == sp) ++ { ++ if (!r_cfa_offset_p[rd] && !r_value_known[rd]) ++ r_cfa_offset[rd] = si12 - frame_offset, r_cfa_offset_p[rd] = 1; ++ prologue_end = cur_pc + insnlen; ++ } ++ else if ((((insn & 0xff000000) == 0x25000000 /* stptr.w rd,sp,si14 */ ++ && !rlen_is_64b) ++ || ((insn & 0xff000000) == 0x27000000 /* stptr.d rd,sp,si14 */ ++ && rlen_is_64b)) ++ && rj == sp) ++ { ++ if (!r_cfa_offset_p[rd] && !r_value_known[rd]) ++ r_cfa_offset[rd] = si14 - frame_offset, r_cfa_offset_p[rd] = 1; ++ prologue_end = cur_pc + insnlen; ++ } ++ else if (((insn & 0xffc00000) == 0x2b400000 /* fst.s fd,sp,si12 */ ++ || (insn & 0xffc00000) == 0x2bc00000) /* fst.d fd,sp,si12 */ ++ && rj == sp) ++ { ++ if (!f_cfa_offset_p[rd]) ++ f_cfa_offset[rd] = si12 - frame_offset, f_cfa_offset_p[rd] = 1; ++ } ++ else if ((((insn & 0xffff8000) == 0x00110000 /* sub.w sp,sp,rk */ ++ && !rlen_is_64b) ++ || ((insn & 0xffff8000) == 0x00118000 /* sub.d sp,sp,rk */ ++ && rlen_is_64b)) ++ && rd == sp && rj == sp) ++ { ++ if (r_value_known[rk]) ++ { ++ frame_offset += r_value[rk]; ++ prologue_end = cur_pc + insnlen; ++ } ++ else ++ cfa_unknown = 1; ++ } ++ else if ((((insn & 0xffff8000) == 0x00100000 /* add.w sp,sp,rk */ ++ && !rlen_is_64b) ++ || ((insn & 0xffff8000) == 0x00108000 /* add.d sp,sp,rk */ ++ && rlen_is_64b)) ++ && rd == sp && rj == sp) ++ { ++ if (r_value_known[rk] && r_value[rk] < 0) ++ { ++ frame_offset -= r_value[rk]; ++ prologue_end = cur_pc + insnlen; ++ } ++ else ++ cfa_unknown = 1; ++ } ++ else if ((insn & 0xffff8000) == 0x00150000 /* or rd,sp,$r0 */ ++ && rj == sp && rk == 0) ++ { ++ sp = rd; ++ prologue_end = cur_pc + insnlen; ++ } ++ else if ((insn & 0xffc00000) == 0x02800000) /* addi.w rd,rj,si12 */ ++ { ++ if (r_value_known[rj] && rd != 0) ++ r_value[rd] = (int32_t) (r_value[rj] + si12), ++ r_value_known[rd] = 1; ++ } ++ else if ((insn & 0xffc00000) == 0x03800000) /* ori rd,rj,si12 */ ++ { ++ if (r_value_known[rj] && rd != 0) ++ r_value[rd] = r_value[rj] | (si12 & 0xfff), r_value_known[rd] = 1; ++ } ++ else if ((insn & 0xfe000000) == 0x14000000) /* lu12i.w rd,si20 */ ++ { ++ if (rd != 0) ++ r_value[rd] = si20 << 12, r_value_known[rd] = 1; ++ } ++ else if ((insn & 0xfe000000) == 0x16000000) /* lu32i.d rd,si20 */ ++ { ++ if (r_value_known[rd] && rd != 0) ++ r_value[rd] = (r_value[rd] & 0xffffffff) | (si20 << 32), ++ r_value_known[rd] = 1; ++ } ++ else if ((insn & 0xffc00000) == 0x03000000) /* lu52i.d rd,rj,si12 */ ++ { ++ if (r_value_known[rj] && rd != 0) ++ r_value[rd] = (r_value[rj] & 0xfffffffffffff) | (si12 << 52), ++ r_value_known[rd] = 1; ++ } ++ else if (loongarch_insn_is_branch (insn)) ++ break; /* Shrink-wrap or end of prologue in a basic block. */ ++ else ++ non_prologue_insns++; ++ ++ /* 4 INSNs for 'la' and one for some other. */ ++ if (5 < non_prologue_insns) ++ break; ++ } ++ ++ if (loongarch_debug) ++ { ++ const char *fun_name; ++ find_pc_partial_function (start_pc, &fun_name, NULL, NULL); ++ fprintf_unfiltered (gdb_stdlog, ++ "Prologue Analyze: -- Start -- Callee [%s] %s\n", ++ fun_name ? fun_name : "<unknown>", ++ paddress (gdbarch, start_pc)); ++ } ++ ++ do ++ { ++ int i; ++ CORE_ADDR cfa = -1; ++ ++ if (!(this_frame && this_cache)) ++ break; ++ ++ if (!cfa_unknown) ++ { ++ try ++ { ++ cfa = get_frame_register_signed (this_frame, regs->r + sp) ++ + frame_offset; ++ } ++ catch (const gdb_exception_error &ex) ++ { ++ cfa_unknown = 1; ++ if (ex.error != NOT_AVAILABLE_ERROR) ++ throw; ++ } ++ ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Prologue Analyze: CFA is (frame pointer $%s + 0x%lx) = %s\n", ++ gdbarch_register_name (gdbarch, regs->r + sp), ++ (long) frame_offset, ++ cfa_unknown ? "<unknown>" : paddress (gdbarch, cfa)); ++ } ++ else if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Prologue Analyze: Unknown stack frame size, so " ++ "can't get known CFA\n"); ++ ++ if (r_cfa_offset_p[1] && !cfa_unknown) ++ { ++ CORE_ADDR ret_saved = cfa + r_cfa_offset[1]; ++ trad_frame_set_reg_addr (this_cache, gdbarch_pc_regnum (gdbarch), ++ ret_saved); ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Prologue Analyze: Return addr saved in (CFA - 0x%lx) = %s\n", ++ -r_cfa_offset[1], paddress (gdbarch, ret_saved)); ++ } ++ else if (r_cfa_offset_p[1] /* && cfa_unknown */) ++ { ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Prologue Analyze: Return addr saved in (CFA " ++ "- 0x%lx), but CFA is unknown\n", ++ -r_cfa_offset[1]); ++ } ++ else ++ { ++ trad_frame_set_reg_realreg (this_cache, gdbarch_pc_regnum (gdbarch), ++ regs->r + 1); ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, ++ "Prologue Analyze: No found $r1 pushed in " ++ "stack. Return addr saved in $r1\n"); ++ } ++ ++ if (cfa_unknown) ++ { ++ trad_frame_set_this_base (this_cache, -1); ++ break; ++ } ++ ++ trad_frame_set_reg_value (this_cache, gdbarch_sp_regnum (gdbarch), ++ (LONGEST) cfa); ++ trad_frame_set_this_base (this_cache, cfa); ++ ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Prologue Analyze: Where caller's registers saved as follow:\n"); ++ ++ for (i = 0; i < 32; i++) ++ if (r_cfa_offset_p[i] && i != 1) ++ { ++ trad_frame_set_reg_addr (this_cache, regs->r + i, ++ cfa + r_cfa_offset[i]); ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Prologue Analyze: $%s: saved in (CFA - 0x%lx) = %s\n", ++ gdbarch_register_name (gdbarch, regs->r + i), -r_cfa_offset[i], ++ paddress (gdbarch, cfa + r_cfa_offset[i])); ++ } ++ ++ if (regs->f <= 0) ++ for (i = 0; i < 32; i++) ++ { ++ if (f_cfa_offset_p[i]) ++ trad_frame_set_reg_addr (this_cache, regs->f + i, ++ cfa + f_cfa_offset[i]); ++ if (loongarch_debug) ++ fprintf_unfiltered ( ++ gdb_stdlog, ++ "Prologue Analyze: $%s: saved in (CFA - 0x%lx) = %s\n", ++ gdbarch_register_name (gdbarch, regs->f + i), -f_cfa_offset[i], ++ paddress (gdbarch, cfa + f_cfa_offset[i])); ++ } ++ } ++ while (0); ++ ++ if (loongarch_debug) ++ fprintf_unfiltered (gdb_stdlog, "Prologue Analyze: -- End -- %s\n", ++ paddress (gdbarch, cur_pc)); ++ ++ return prologue_end ? prologue_end : cur_pc; ++} ++ ++/* Implement the loongarch_skip_prologue gdbarch method. */ ++ ++/* To skip prologues, I use this predicate. Returns either PC itself ++ if the code at PC does not look like a function prologue; otherwise ++ returns an address that (if we're lucky) follows the prologue. If ++ LENIENT, then we must skip everything which is involved in setting ++ up the frame (it's OK to skip more, just so long as we don't skip ++ anything which might clobber the registers which are being saved. ++ We must skip more in the case where part of the prologue is in the ++ delay slot of a non-prologue instruction). */ ++ ++static CORE_ADDR ++loongarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) ++{ ++ CORE_ADDR limit_pc; ++ CORE_ADDR func_addr; ++ ++ /* See if we can determine the end of the prologue via the symbol table. ++ If so, then return either PC, or the PC after the prologue, whichever ++ is greater. */ ++ if (find_pc_partial_function (pc, NULL, &func_addr, NULL)) ++ { ++ CORE_ADDR post_prologue_pc ++ = skip_prologue_using_sal (gdbarch, func_addr); ++ if (post_prologue_pc != 0) ++ return std::max (pc, post_prologue_pc); ++ } ++ ++ /* Can't determine prologue from the symbol table, need to examine ++ instructions. */ ++ ++ /* Find an upper limit on the function prologue using the debug ++ information. If the debug information could not be used to provide ++ that bound, then use an arbitrary large number as the upper bound. */ ++ limit_pc = skip_prologue_using_sal (gdbarch, pc); ++ if (limit_pc == 0) ++ limit_pc = pc + 100; /* Magic. */ ++ ++ return loongarch_scan_prologue (gdbarch, pc, limit_pc, NULL, NULL); ++} ++ ++/* Adjust the address downward (direction of stack growth) so that it ++ is correctly aligned for a new stack frame. */ ++static CORE_ADDR ++loongarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr) ++{ ++ return align_down (addr, 16); ++} ++ ++/* Implement the unwind_pc gdbarch method. */ ++ ++static CORE_ADDR ++loongarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame) ++{ ++ return frame_unwind_register_signed (next_frame, ++ gdbarch_pc_regnum (gdbarch)); ++} ++ ++/* Implement the unwind_sp gdbarch method. */ ++ ++static CORE_ADDR ++loongarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame) ++{ ++ return frame_unwind_register_signed (next_frame, ++ gdbarch_sp_regnum (gdbarch)); ++} ++ ++/* Implement the dummy_id gdbarch method. */ ++ ++static struct frame_id ++loongarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) ++{ ++ return frame_id_build ( ++ get_frame_register_signed (this_frame, gdbarch_sp_regnum (gdbarch)), ++ get_frame_pc (this_frame)); ++} ++ ++/* Generate, or return the cached frame cache for the loongarch frame ++ unwinder. */ ++ ++static struct trad_frame_cache * ++loongarch_frame_cache (struct frame_info *this_frame, void **this_cache) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (this_frame); ++ struct trad_frame_cache *cache; ++ CORE_ADDR pc, start_addr, stack_addr; ++ ++ if (*this_cache != NULL) ++ return (struct trad_frame_cache *) *this_cache; ++ cache = trad_frame_cache_zalloc (this_frame); ++ *this_cache = cache; ++ ++ pc = get_frame_address_in_block (this_frame); ++ if (find_pc_partial_function (pc, NULL, &start_addr, NULL)) ++ { ++ loongarch_scan_prologue (gdbarch, start_addr, pc, this_frame, cache); ++ stack_addr = trad_frame_get_this_base (cache); ++ trad_frame_set_id (cache, ++ stack_addr == -1 ++ ? frame_id_build_unavailable_stack (start_addr) ++ : frame_id_build (stack_addr, start_addr)); ++ } ++ else ++ { ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ trad_frame_set_reg_realreg (cache, regs->ra, -2 /* TF_REG_UNKNOWN */); ++ trad_frame_set_reg_realreg (cache, gdbarch_pc_regnum (gdbarch), ++ regs->ra); ++ ++ trad_frame_set_id (cache, frame_id_build_unavailable_stack (pc)); ++ } ++ return cache; ++} ++ ++/* Implement the this_id callback for loongarch frame unwinder. */ ++ ++static void ++loongarch_frame_this_id (struct frame_info *this_frame, void **prologue_cache, ++ struct frame_id *this_id) ++{ ++ struct trad_frame_cache *info; ++ ++ info = loongarch_frame_cache (this_frame, prologue_cache); ++ trad_frame_get_id (info, this_id); ++} ++ ++/* Implement the prev_register callback for loongarch frame unwinder. */ ++ ++static struct value * ++loongarch_frame_prev_register (struct frame_info *this_frame, ++ void **prologue_cache, int regnum) ++{ ++ struct trad_frame_cache *info; ++ ++ info = loongarch_frame_cache (this_frame, prologue_cache); ++ return trad_frame_get_register (info, this_frame, regnum); ++} ++ ++static const struct frame_unwind loongarch_frame_unwind = { ++ /*.type =*/NORMAL_FRAME, ++ /*.stop_reason =*/default_frame_unwind_stop_reason, ++ /*.this_id =*/loongarch_frame_this_id, ++ /*.prev_register =*/loongarch_frame_prev_register, ++ /*.unwind_data =*/NULL, ++ /*.sniffer =*/default_frame_sniffer, ++}; ++ ++typedef struct stack_data_t ++{ ++ const gdb_byte *addr = NULL; ++ int len = 0; ++ bool ref = false; ++} stack_data_t; ++ ++static void ++pass_on_stack (std::vector<stack_data_t> &stack, const gdb_byte *val, int len, ++ int align, bool ref = false) ++{ ++ stack_data_t buf; ++ buf.addr = val; ++ buf.len = align_up (len, align); ++ buf.ref = ref; ++ ++ stack.push_back (buf); ++} ++ ++static void ++pass_on_reg (struct regcache *regcache, int regno, const gdb_byte *val, ++ int len) ++{ ++ gdb_byte reg[32]; ++ memset (reg, 0, sizeof (reg)); ++ memcpy (reg, val, len); ++ regcache->cooked_write (regno, reg); ++} ++ ++static void ++compute_type_num(struct type *tp, int &complex_num, int &float_num, ++ int &other_num, int &counter, int &float_seq, ++ int &other_seq) ++{ ++ if (tp->code () == TYPE_CODE_COMPLEX) ++ complex_num++; ++ else if (tp->code () == TYPE_CODE_FLT) ++ float_num++; ++ else if (tp->code () != TYPE_CODE_STRUCT) ++ other_num++; ++ ++ /* When the function parameter or return value type is a structure, ++ traverse each member in the structure and make relevant marks. */ ++ for (int i = 0; i < tp->num_fields (); i++) ++ { ++ field fd = tp->field (i); ++ struct type *t = fd.type (); ++ ++ /* Call check_typedef(TYPE_TARGET_TYPE (TYPE)) on our type to make ++ sure that, if TYPE is a TYPE_CODE_TYPEDEF, its TYPE is set to ++ the target type instead of TYPE_CODE_TYPEDEF. */ ++ if (t->code () == TYPE_CODE_TYPEDEF) ++ t = check_typedef (TYPE_TARGET_TYPE (t)); ++ ++ switch (t->code ()) ++ { ++ case TYPE_CODE_STRUCT: ++ compute_type_num(t, complex_num, float_num, other_num, ++ counter, float_seq, other_seq); ++ break; ++ case TYPE_CODE_COMPLEX: ++ complex_num++; ++ break; ++ case TYPE_CODE_FLT: ++ float_num++; ++ float_seq = ++counter; ++ break; ++ default: ++ other_num++; ++ other_seq = ++counter; ++ break; ++ } ++ } ++} ++ ++static void ++pass_small_struct_on_reg (struct gdbarch *gdbarch, struct type *tp, ++ const gdb_byte *data, std::vector<stack_data_t> &gp, ++ std::vector<stack_data_t> &fp) ++{ ++ const int rlen = loongarch_rlen (gdbarch) / 8; ++ int len = TYPE_LENGTH (tp); ++ int complex_num = 0, float_num = 0, other_num = 0; ++ int counter = 0, float_seq = 0, other_seq = 0; ++ stack_data_t elm; ++ ++ gdb_assert (len <= 2 * rlen); ++ ++ /* Compute the relevant members and types in the function parameters ++ and mark them. */ ++ compute_type_num(tp, complex_num, float_num, other_num, ++ counter, float_seq, other_seq); ++ ++ if (other_num > 0 && float_num == 0 && len <= rlen) ++ { ++ /* For the small structure has only other types (like char/short/int/long ++ etc.), and the size does not exceed rlen, pass on one gp or stack. */ ++ elm.addr = data; ++ elm.len = rlen; ++ gp.push_back (elm); ++ } ++ else if (float_num == 1 && complex_num == 0 && other_num == 0 && len <= rlen) ++ { ++ /* For the small structure has only floating-point (like float/double), ++ and the size does not exceed rlen, pass on one fp or stack. */ ++ elm.addr = data; ++ elm.len = rlen; ++ fp.push_back (elm); ++ } ++ else if (float_num == 1 && other_num == 1) ++ { ++ /* For the small structure has only one floating-point type and ++ one other type(like float and int, char and double etc.), the ++ floating-point type passes through one fp or stack, and the ++ other types pass on one gp or stack. */ ++ if (float_seq < other_seq) ++ { ++ /* Floating point first, first pass on fp, then gp. */ ++ elm.addr = data; ++ if (len == rlen) ++ elm.len = rlen / 2; ++ else ++ elm.len = rlen; ++ fp.push_back (elm); ++ elm.addr += elm.len; ++ gp.push_back (elm); ++ } ++ else ++ { ++ /* Floating point after, first pass on gp, then fp. */ ++ elm.addr = data; ++ if (len == rlen) ++ elm.len = rlen / 2; ++ else ++ elm.len = rlen; ++ gp.push_back (elm); ++ elm.addr += elm.len; ++ fp.push_back (elm); ++ } ++ } ++ else if ((complex_num == 1 && float_num == 0 && other_num == 0) || ++ (float_num ==2 && other_num == 0)) ++ { ++ /* For the small structure has only two floating-point types or ++ * one complex number type, pass on two fp or stack. */ ++ elm.addr = data; ++ /* 2 float or 1 'float _Complex'. */ ++ if (len == rlen) ++ elm.len = rlen / 2; ++ /* 2 double or 1 'double _Complex'. */ ++ else ++ elm.len = rlen; ++ fp.push_back (elm); ++ elm.addr += elm.len; ++ fp.push_back (elm); ++ } ++ else ++ { ++ /* For other cases, pass on two gp or stack. */ ++ /* For example, the small structure is of the following type, ++ 1. with more than 2 other types and the size is greater than rlen ++ (like struct{int; int; int;}; struct{long; int; short; char;}; etc.). ++ 2. with 'long double' on fpu64 or 'double' on fpu32 ++ (like struct{long double;}; or struct{double;}; etc.). ++ 3. with more than 2 floating-point types ++ (like struct{float; float; float;}; struct{float; float; double;}; ++ struct{float; float; float; float;}; etc.) ++ 4. with 2 'float _Complex' ++ (like struct{float _Complex; float _Complex;} etc.). */ ++ elm.addr = data; ++ elm.len = rlen; ++ gp.push_back (elm); ++ elm.addr += elm.len; ++ gp.push_back (elm); ++ } ++} ++ ++static bool ++try_pass_small_struct_on_reg (struct gdbarch *gdbarch, ++ struct regcache *regcache, struct value *arg, ++ int &gp, int &fp, int gp_max, int fp_max) ++{ ++ const int rlen = loongarch_rlen (gdbarch) / 8; ++ struct type *a_type = check_typedef (value_type (arg)); ++ int len = TYPE_LENGTH (a_type); ++ const gdb_byte *val = value_contents (arg); ++ ++ std::vector<stack_data_t> gpreg; ++ std::vector<stack_data_t> fpreg; ++ ++ gdb_assert (len <= 2 * rlen); ++ // gdb_assert (a_type->code () == TYPE_CODE_STRUCT); ++ ++ pass_small_struct_on_reg (gdbarch, a_type, val, gpreg, fpreg); ++ ++ if (gp + gpreg.size () - 1 < gp_max && fp + fpreg.size () - 1 < fp_max) ++ { ++ for (auto it : gpreg) ++ { ++ pass_on_reg (regcache, gp, it.addr, it.len); ++ gp++; ++ } ++ for (auto it : fpreg) ++ { ++ pass_on_reg (regcache, fp, it.addr, it.len); ++ fp++; ++ } ++ return true; ++ } ++ return false; ++} ++ ++/* Implement the push dummy call gdbarch callback. */ ++ ++static CORE_ADDR ++loongarch_lp32lp64_push_dummy_call ( ++ struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, ++ CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, ++ function_call_return_method return_method, CORE_ADDR struct_addr) ++{ ++ const int rlen = loongarch_rlen (gdbarch) / 8; ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ int gp = regs->r + 4; /* $a0 = $r4 = regs->r + 4 */ ++ int fp = regs->f; /* $fa0 */ ++ const int gp_max = gp + 8; /* gpr $a0 ~ $a7 ($r4 ~ $r11) */ ++ const int fp_max = fp + 8; /* fpr $fa0 ~ $fa7 */ ++ std::vector<stack_data_t> stack; ++ int vec_insn = 0; ++ ++ { ++ if (return_method != return_method_normal) ++ { ++ regcache_cooked_write_unsigned (regcache, gp++, struct_addr); ++ } ++ ++ if (return_method == return_method_hidden_param) ++ { ++ args++; ++ nargs--; ++ } ++ } ++ regcache_cooked_write_signed (regcache, regs->ra, bp_addr); ++ ++ struct type *f_type = check_typedef (value_type (function)); ++ ++ for (int i = 0; i < nargs; i++) ++ { ++ struct value *arg = args[i]; ++ struct type *a_type = check_typedef (value_type (arg)); ++ int len = TYPE_LENGTH (a_type); ++ const gdb_byte *val = value_contents (arg); ++ ++ switch (a_type->code ()) ++ { ++ case TYPE_CODE_INT: ++ case TYPE_CODE_BOOL: ++ case TYPE_CODE_CHAR: ++ case TYPE_CODE_RANGE: ++ case TYPE_CODE_ENUM: ++ case TYPE_CODE_PTR: ++ if (gp < gp_max) ++ { ++ if (TYPE_UNSIGNED (a_type)) ++ { ++ ULONGEST data ++ = extract_unsigned_integer (val, len, BFD_ENDIAN_LITTLE); ++ regcache_cooked_write_unsigned (regcache, gp++, data); ++ } ++ else ++ { ++ LONGEST data ++ = extract_signed_integer (val, len, BFD_ENDIAN_LITTLE); ++ regcache_cooked_write_signed (regcache, gp++, data); ++ } ++ } ++ else ++ { ++ pass_on_stack (stack, val, len, rlen); ++ } ++ break; ++ case TYPE_CODE_FLT: ++ if (len <= rlen) ++ { ++ if (!TYPE_VARARGS (f_type) && (fp < fp_max)) ++ pass_on_reg (regcache, fp++, val, len); ++ else if (gp < gp_max) ++ pass_on_reg (regcache, gp++, val, len); ++ else ++ pass_on_stack (stack, val, len, rlen); ++ } ++ /* Long double like struct. */ ++ else ++ { ++ if (gp < gp_max - 1) ++ { ++ pass_on_reg (regcache, gp++, val, rlen); ++ pass_on_reg (regcache, gp++, val + rlen, len - rlen); ++ } ++ else ++ pass_on_stack (stack, val, len, rlen); ++ } ++ break; ++ case TYPE_CODE_ARRAY: ++ /* lsx */ ++ if (TYPE_VECTOR (a_type) && len == vec_insn && vec_insn == 16 ++ && fp < fp_max) ++ { ++ pass_on_reg (regcache, regs->vr + (fp++ - regs->f), val, len); ++ } ++ /* lasx */ ++ else if (TYPE_VECTOR (a_type) && len == vec_insn && vec_insn == 32 ++ && fp < fp_max) ++ { ++ pass_on_reg (regcache, regs->xr + (fp++ - regs->f), val, len); ++ } ++ /* scalar */ ++ else ++ { ++ if (len > rlen * 2) ++ { ++ /* Address on register, data on stack. */ ++ sp = align_down (sp - len, rlen); ++ write_memory (sp, val, len); ++ if (gp < gp_max) ++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen); ++ else ++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen, ++ true); ++ } ++ else ++ { ++ if (len <= rlen && gp < gp_max) ++ { ++ pass_on_reg (regcache, gp++, val, len); ++ } ++ else if (gp + 1 < gp_max) ++ { ++ pass_on_reg (regcache, gp++, val, rlen); ++ pass_on_reg (regcache, gp++, val + rlen, rlen); ++ } ++ else ++ { ++ pass_on_stack (stack, val, len, rlen); ++ } ++ } ++ } ++ break; ++ case TYPE_CODE_STRUCT: ++ case TYPE_CODE_UNION: ++ if (len > rlen * 2) ++ { ++ /* Address on register, data on stack. */ ++ sp = align_down (sp - len, rlen); ++ write_memory (sp, val, len); ++ if (gp < gp_max) ++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen); ++ else ++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen, true); ++ } ++ else ++ { ++ if (!try_pass_small_struct_on_reg (gdbarch, regcache, arg, gp, ++ fp, gp_max, fp_max)) ++ { ++ pass_on_stack (stack, val, len, rlen); ++ } ++ } ++ break; ++ case TYPE_CODE_COMPLEX: ++ { ++ /* Two fpr or mem. */ ++ struct type *t_type = check_typedef (TYPE_TARGET_TYPE (a_type)); ++ int tlen = TYPE_LENGTH (t_type); ++ ++ if (tlen < rlen) ++ { ++ if (!TYPE_VARARGS (f_type) && fp + 1 < fp_max) ++ { ++ pass_on_reg (regcache, fp++, (const gdb_byte *) val, tlen); ++ pass_on_reg (regcache, fp++, (const gdb_byte *) val + tlen, ++ tlen); ++ } ++ else if (gp < gp_max) ++ { ++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen); ++ } ++ else ++ { ++ pass_on_stack (stack, val, len, rlen); ++ } ++ } ++ else if (tlen == rlen) ++ { ++ if (!TYPE_VARARGS (f_type) && fp + 1 < fp_max) ++ { ++ pass_on_reg (regcache, fp++, (const gdb_byte *) val, tlen); ++ pass_on_reg (regcache, fp++, (const gdb_byte *) val + tlen, ++ tlen); ++ } ++ else if (gp + 1 < gp_max) ++ { ++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen); ++ pass_on_reg (regcache, gp++, (const gdb_byte *) val + rlen, ++ rlen); ++ } ++ else if (gp + 1 == gp_max) ++ { ++ pass_on_reg (regcache, gp++, (const gdb_byte *) val, rlen); ++ pass_on_stack (stack, val, tlen, rlen); ++ } ++ else ++ { ++ pass_on_stack (stack, val, len, rlen); ++ } ++ } ++ else ++ { ++ sp = align_down (sp - len, rlen); ++ write_memory (sp, val, len); ++ if (gp < gp_max) ++ pass_on_reg (regcache, gp++, (const gdb_byte *) &sp, rlen); ++ else ++ { ++ pass_on_stack (stack, (const gdb_byte *) sp, rlen, rlen, ++ true); ++ } ++ } ++ } ++ break; ++ default: ++ break; ++ } ++ } ++ ++ for (auto it : stack) ++ sp = align_down (sp - it.len, rlen); ++ ++ sp = align_down (sp, 16); ++ CORE_ADDR tsp = sp; ++ for (auto it : stack) ++ { ++ if (it.ref) ++ write_memory (tsp, (const gdb_byte *) &it.addr, it.len); ++ else ++ write_memory (tsp, it.addr, it.len); ++ tsp += it.len; ++ stack.pop_back (); ++ } ++ regcache_cooked_write_unsigned (regcache, regs->sp, sp); ++ return sp; ++} ++ ++static void ++loongarch_xfer_reg_part (struct regcache *regcache, int reg_num, int len, ++ gdb_byte *readbuf, size_t readbuf_off, ++ const gdb_byte *writebuf, size_t writebuf_off) ++{ ++ if (readbuf) ++ regcache->cooked_read_part (reg_num, 0, len, readbuf + readbuf_off); ++ if (writebuf) ++ regcache->cooked_write_part (reg_num, 0, len, writebuf + writebuf_off); ++} ++ ++static enum return_value_convention ++loongarch_lp64_return_value (struct gdbarch *gdbarch, struct value *function, ++ struct type *type, struct regcache *regcache, ++ gdb_byte *readbuf, const gdb_byte *writebuf) ++{ ++ const size_t rlen = loongarch_rlen (gdbarch) / 8; ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ size_t len = TYPE_LENGTH (type); ++ enum type_code typecode = type->code (); ++ int fpu_exist = 0 <= regs->f; ++ int fv = fpu_exist ? regs->f : regs->r + 4; ++ ++ gdb_assert (8 <= sizeof (LONGEST)); ++ ++ gdb_assert (!fpu_exist || register_size (gdbarch, regs->f) == rlen); ++ ++ if (2 * rlen < len) ++ return RETURN_VALUE_STRUCT_CONVENTION; ++ ++ if (((typecode == TYPE_CODE_INT && TYPE_UNSIGNED (type)) ++ || typecode == TYPE_CODE_ENUM) ++ && len <= rlen) ++ /* For unsigned scalar type, we have zero-extended one in $v0. */ ++ if (writebuf) ++ { ++ gdb_byte buf[rlen]; ++ store_signed_integer (buf, rlen, BFD_ENDIAN_LITTLE, ++ extract_unsigned_integer (writebuf, len, ++ BFD_ENDIAN_LITTLE)); ++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, NULL, 0, ++ writebuf, 0); ++ } ++ else ++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0, NULL, ++ 0); ++ else if (((typecode == TYPE_CODE_INT && !TYPE_UNSIGNED (type)) ++ || typecode == TYPE_CODE_PTR) ++ && len <= rlen) ++ /* For signed scalar type, we have sign-extended one in $v0. */ ++ if (writebuf) ++ { ++ gdb_byte buf[rlen]; ++ store_signed_integer (buf, rlen, BFD_ENDIAN_LITTLE, ++ extract_signed_integer (writebuf, len, ++ BFD_ENDIAN_LITTLE)); ++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, NULL, 0, ++ writebuf, 0); ++ } ++ else ++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0, NULL, ++ 0); ++ else ++ { ++ int complex_num = 0, float_num = 0, other_num = 0; ++ int counter = 0, float_seq = 0, other_seq = 0, tlen; ++ /* Calculate the relevant members and types in the return value ++ and mark them. */ ++ compute_type_num(type, complex_num, float_num, other_num, ++ counter, float_seq, other_seq); ++ ++ if (len == rlen) ++ tlen = rlen / 2; ++ else ++ tlen = rlen; ++ ++ /* For the small structure has only other types members (like char/short/int/long ++ etc.), and the size does not exceed rlen, pass on $v0. */ ++ /* For 'char/short/int/long' etc. pass on $v0. */ ++ if (other_num > 0 && float_num == 0 && len <= rlen) ++ loongarch_xfer_reg_part (regcache, regs->r + 4, len, readbuf, 0, ++ writebuf, 0); ++ /* For small structure with only one floating-point member, (like float/double) pass on $fv0. */ ++ /* For float/double pass on $fv0. */ ++ else if (float_num == 1 && complex_num == 0 && other_num == 0 && len <= rlen) ++ loongarch_xfer_reg_part (regcache, fv, len, readbuf, 0, writebuf, 0); ++ /* For small structure with one float/double member and one other member ++ (char/short/int/long etc.). If the float/dobule member is in the front ++ position, the float/dobule member pass on $fv0, the other member pass ++ on $v0, otherwise the opposite . */ ++ else if (float_num == 1 && other_num == 1) ++ if (float_seq < other_seq) ++ loongarch_xfer_reg_part (regcache, fv, rlen, readbuf, 0, ++ writebuf, 0), ++ loongarch_xfer_reg_part (regcache, regs->r + 4, tlen, readbuf, ++ tlen, writebuf, rlen); ++ else ++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, readbuf, 0, ++ writebuf, 0), ++ loongarch_xfer_reg_part (regcache, fv, tlen, readbuf, ++ tlen, writebuf, rlen); ++ /* For small structure with one 'float/double _Complex' member, ++ $fv0 is real and $fv1 is img. */ ++ /* For small structure with only one float and double member or ++ or two float member , or two dobule member, $fv0 is the 1st ++ member and $fv1 is the 2nd member. */ ++ /* For 'float/double _Complex', $fv0 is real and $fv1 is img. */ ++ else if ((complex_num == 1 && float_num == 0 && other_num == 0) || ++ (float_num ==2 && other_num == 0)) ++ loongarch_xfer_reg_part (regcache, fv, rlen, readbuf, 0, ++ writebuf, 0), ++ loongarch_xfer_reg_part (regcache, fv + 1, tlen, readbuf, ++ tlen, writebuf, rlen); ++ /* For small structure with 'long double' member, ++ or when the small structure has more than two vaild members ++ and the size is greater than rlen, pass on $v0 and $v1. */ ++ /* For small structure with two 'float _Complex' member, ++ $v0 is the 1st member and $v1 is the 2nd member. */ ++ /* For 'long double' on fpu64 or 'double' on fpu32 pass on $v0 and $v1. */ ++ else ++ loongarch_xfer_reg_part (regcache, regs->r + 4, rlen, readbuf, 0, ++ writebuf, 0), ++ loongarch_xfer_reg_part (regcache, regs->r + 5, len - rlen, readbuf, ++ rlen, writebuf, rlen); ++ } ++ ++ return RETURN_VALUE_REGISTER_CONVENTION; ++} ++ ++static int ++loongarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int num) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ if (0 <= num && num < 32) ++ return regs->r + num; ++ else if (32 <= num && num < 64 && 0 <= regs->f) ++ return regs->f + num - 32; ++ else if (64 <= num && num < 72 && 0 <= regs->fcc) ++ return regs->fcc + num - 64; ++ else ++ return -1; ++} ++ ++static std::string ++loongarch_gcc_target_options (struct gdbarch *gdbarch) ++{ ++ return ""; ++} ++ ++static int ++loongarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, ++ struct reggroup *group) ++{ ++ auto regs = &gdbarch_tdep (gdbarch)->regs; ++ ++ if (gdbarch_register_name (gdbarch, regnum) == NULL ++ || *gdbarch_register_name (gdbarch, regnum) == '\0') ++ return 0; ++ ++ int raw_p = regnum < gdbarch_num_regs (gdbarch); ++ ++ if (group == save_reggroup || group == restore_reggroup) ++ return raw_p; ++ if (group == all_reggroup) ++ return 1; ++ ++ if (group == general_reggroup ++ && (regs->orig_a0 == regnum || regs->pc == regnum ++ || regs->badv == regnum ++ || (regs->r <= regnum && regnum < regs->r + 32))) ++ return 1; ++ ++ /* Only $rx and $pc in general_reggroup. */ ++ if (group == general_reggroup) ++ return 0; ++ ++ if (0 <= regs->f ++ && (regs->fcsr == regnum || (regs->f <= regnum && regnum < regs->f + 32) ++ || (regs->fcc <= regnum && regnum < regs->fcc + 8))) ++ return group == float_reggroup; ++ ++ /* Only $fx / $fccx / $fcsr in float_reggroup. */ ++ if (group == float_reggroup) ++ return 0; ++ ++ if (0 <= regs->vr && regs->vr <= regnum && regnum < regs->vr + 32) ++ if (group == vector_reggroup) ++ return 1; ++ ++ if (0 <= regs->xr && regs->xr <= regnum && regnum < regs->xr + 32) ++ if (group == vector_reggroup) ++ return 1; ++ ++ int ret = tdesc_register_in_reggroup_p (gdbarch, regnum, group); ++ if (ret != -1) ++ return ret; ++ ++ return default_register_reggroup_p (gdbarch, regnum, group); ++} ++ ++constexpr gdb_byte loongarch_default_breakpoint[] = {0x05, 0x00, 0x2a, 0x00}; ++typedef BP_MANIPULATION (loongarch_default_breakpoint) loongarch_breakpoint; ++ ++/* Initialize the current architecture based on INFO. If possible, ++ re-use an architecture from ARCHES, which is a list of ++ architectures already created during this debugging session. ++ ++ Called e.g. at program startup, when reading a core file, and when ++ reading a binary file. */ ++ ++/* This predicate tests whether we need to read lsx/lasx registers ++ (instead of fp registers with the same DWARF2 code ++ (thus the same internal code, though lasx/lsx/fp reg internal ++ codes are different)) according to the byte-size of requested type. */ ++ ++static int ++loongarch_fp_regnum_refers_to_lsx_lasx_p (struct gdbarch *gdbarch, int regnum, ++ struct type *type) ++{ ++ /* Conditions: ++ 1) regnum is in "disputed" zone (fp/lsx/lasx, translated ++ from dwarf regnum). ++ 2) type is larger than 8 bytes. ++ ++ (if specified type is larger than 8 bytes, ++ then regnum refers to lsx / lasx register instead of fp register). ++ */ ++ return regnum >= gdbarch_tdep (gdbarch)->regs.f ++ && regnum < gdbarch_tdep (gdbarch)->regs.f + 32 ++ && TYPE_LENGTH (type) > 8; ++} ++ ++static int ++loongarch_convert_register_p (struct gdbarch *gdbarch, int regnum, ++ struct type *type) ++{ ++ return loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type); ++} ++ ++static int ++loongarch_register_to_value (struct frame_info *frame, int regnum, ++ struct type *type, gdb_byte *to, int *optimizedp, ++ int *unavailablep) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (frame); ++ ++ if (loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type)) ++ { ++ /* Add a displacement to regnum. */ ++ switch (TYPE_LENGTH (type)) ++ { ++ case 16: /* 16-byte types, access vr. */ ++ if (!get_frame_register_bytes (frame, ++ regnum ++ + gdbarch_tdep (gdbarch)->regs.vr ++ - gdbarch_tdep (gdbarch)->regs.f, ++ 0, 16, to + 0, optimizedp, ++ unavailablep)) ++ return 0; ++ break; ++ ++ case 32: /* 32-byte types, access xr. */ ++ if (!get_frame_register_bytes (frame, ++ regnum ++ + gdbarch_tdep (gdbarch)->regs.xr ++ - gdbarch_tdep (gdbarch)->regs.f, ++ 0, 32, to + 0, optimizedp, ++ unavailablep)) ++ return 0; ++ break; ++ ++ default: ++ goto fail; ++ } ++ ++ *optimizedp = *unavailablep = 0; ++ return 1; /* 1 for success, 0 for fail. */ ++ } ++ ++fail: ++ internal_error (__FILE__, __LINE__, ++ _ ("loongarch_register_to_value: unrecognized case")); ++} ++ ++static void ++loongarch_value_to_register (struct frame_info *frame, int regnum, ++ struct type *type, const gdb_byte *from) ++{ ++ struct gdbarch *gdbarch = get_frame_arch (frame); ++ if (loongarch_fp_regnum_refers_to_lsx_lasx_p (gdbarch, regnum, type)) ++ { ++ switch (TYPE_LENGTH (type)) ++ { ++ case 16: /* 16-byte types, access vr. */ ++ put_frame_register (frame, ++ regnum + gdbarch_tdep (gdbarch)->regs.vr ++ - gdbarch_tdep (gdbarch)->regs.f, ++ from); ++ return; ++ ++ case 32: /* 32-byte types, access xr. */ ++ put_frame_register (frame, ++ regnum + gdbarch_tdep (gdbarch)->regs.xr ++ - gdbarch_tdep (gdbarch)->regs.f, ++ from); ++ return; ++ } ++ } ++ ++ internal_error (__FILE__, __LINE__, ++ _ ("loongarch_value_to_register: unrecognized case")); ++} ++ ++static int ++loongarch_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc) ++{ ++ CORE_ADDR jb_addr; ++ struct gdbarch *gdbarch = get_frame_arch (frame); ++ uint32_t ptr_size = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT; ++ gdb_byte buf[ptr_size]; ++ ++ jb_addr = get_frame_register_unsigned (frame, LOONGARCH_A0_REGNUM); ++ ++ if (target_read_memory ((jb_addr + LOONGARCH_JB_PC * ptr_size), ++ buf, ptr_size)) ++ return 0; ++ ++ *pc = extract_unsigned_integer (buf, ptr_size, BFD_ENDIAN_LITTLE); ++ ++ return 1; ++} ++ ++static struct gdbarch * ++loongarch_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) ++{ ++ struct gdbarch *gdbarch; ++ struct gdbarch_tdep tdep_instant, *tdep; ++ struct tdesc_arch_data *tdesc_data = NULL; ++ const struct target_desc *tdesc = info.target_desc; ++ int i; ++ size_t regnum; ++ ++ tdep = &tdep_instant; ++ memset (tdep, 0, sizeof (*tdep)); ++ memset (&tdep->regs, -1, sizeof (tdep->regs)); ++ ++ /* If abfd is nullptr then a EF_LOONGARCH_ABI_LP64 | EF_LOONGARCH_FLOAT_ABI_DOUBLE ++ is returned in its default state. */ ++ if (info.abfd != NULL ++ && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) ++ { ++ int eflags = elf_elfheader (info.abfd)->e_flags; ++ unsigned char eclass = elf_elfheader (info.abfd)->e_ident[EI_CLASS]; ++ ++ if (eflags) /* Executable file */ ++ { ++ tdep->ef_abi = (EF_LOONGARCH_ABI(eflags) & EF_LOONGARCH_ABI_MASK); ++ } ++ else /* Core file */ ++ { ++ if (eclass == ELFCLASS64) ++ tdep->ef_abi = EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT; ++ else ++ tdep->ef_abi = EF_LOONGARCH_ABI_ILP32_DOUBLE_FLOAT; ++ } ++ } ++ else ++ tdep->ef_abi = EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT; ++ ++ /* Check any target description for validity. */ ++ if (!tdesc_has_registers (tdesc)) ++ tdesc = loongarch_get_base_target_description ( ++ EF_LOONGARCH_IS_ILP32 (tdep->ef_abi) ? 32 : 64, ++ EF_LOONGARCH_IS_SINGLE_FLOAT (tdep->ef_abi) ? 32 : 64); ++ ++ int valid_p = 1; ++ const struct tdesc_feature *feature; ++ ++ feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.base"); ++ if (feature == NULL) ++ return NULL; ++ regnum = 0; ++ tdesc_data = tdesc_data_alloc (); ++ ++ tdep->regs.r = regnum; ++ for (i = 0; i < 32; i++) ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ loongarch_r_normal_name[i] + 1); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.orig_a0 = regnum++, "orig_a0"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.pc = regnum++, "pc"); ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.badv = regnum++, "badv"); ++ ++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.fpu"))) ++ { ++ tdep->regs.f = regnum; ++ for (i = 0; i < 32; i++) ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ loongarch_f_normal_name[i] + 1); ++ tdep->regs.fcc = regnum; ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc0"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc1"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc2"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc3"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc4"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc5"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc6"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ "fcc7"); ++ valid_p &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.fcsr = regnum++, "fcsr"); ++ } ++ ++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lbt"))) ++ { ++ tdep->regs.scr = regnum; ++ for (i = 0; i < 4; i++) ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ loongarch_cr_normal_name[i] + 1); ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.EFLAG = regnum++, "EFLAG"); ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, ++ tdep->regs.x86_top = regnum++, "x86_top"); ++ } ++ ++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lsx"))) ++ { ++ tdep->regs.vr = regnum; ++ for (i = 0; i < 32; i++) ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ loongarch_v_normal_name[i] + 1); ++ } ++ ++ if ((feature = tdesc_find_feature (tdesc, "org.gnu.gdb.loongarch.lasx"))) ++ { ++ tdep->regs.xr = regnum; ++ for (i = 0; i < 32; i++) ++ valid_p ++ &= tdesc_numbered_register (feature, tdesc_data, regnum++, ++ loongarch_x_normal_name[i] + 1); ++ } ++ ++ if (!valid_p) ++ { ++ return NULL; ++ } ++ ++ info.byte_order_for_code = BFD_ENDIAN_LITTLE; ++ ++ /* Find a candidate among the list of pre-declared architectures. */ ++ for (arches = gdbarch_list_lookup_by_info (arches, &info); arches != NULL; ++ arches = gdbarch_list_lookup_by_info (arches->next, &info)) ++ { ++ if (gdbarch_tdep (arches->gdbarch)->ef_abi != tdep->ef_abi) ++ continue; ++ ++ return arches->gdbarch; ++ } ++ ++ /* None found, so create a new architecture from the information provided. */ ++ tdep = (struct gdbarch_tdep *) xmalloc (sizeof (tdep_instant)); ++ memcpy (tdep, &tdep_instant, sizeof (tdep_instant)); ++ gdbarch = gdbarch_alloc (&info, tdep); ++ ++ /* Target data types. */ ++ if (EF_LOONGARCH_IS_ILP32 (tdep->ef_abi)) ++ { ++ set_gdbarch_short_bit (gdbarch, 16); ++ set_gdbarch_int_bit (gdbarch, 32); ++ set_gdbarch_long_bit (gdbarch, 32); ++ set_gdbarch_long_long_bit (gdbarch, 32); ++ set_gdbarch_float_bit (gdbarch, 32); ++ set_gdbarch_double_bit (gdbarch, 64); ++ set_gdbarch_long_double_bit (gdbarch, 128); ++ set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad); ++ set_gdbarch_ptr_bit (gdbarch, 32); ++ set_gdbarch_char_signed (gdbarch, 0); ++ } ++ else if (EF_LOONGARCH_IS_LP64 (tdep->ef_abi)) ++ { ++ set_gdbarch_short_bit (gdbarch, 16); ++ set_gdbarch_int_bit (gdbarch, 32); ++ set_gdbarch_long_bit (gdbarch, 64); ++ set_gdbarch_long_long_bit (gdbarch, 64); ++ set_gdbarch_float_bit (gdbarch, 32); ++ set_gdbarch_double_bit (gdbarch, 64); ++ set_gdbarch_long_double_bit (gdbarch, 128); ++ set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad); ++ set_gdbarch_ptr_bit (gdbarch, 64); ++ set_gdbarch_char_signed (gdbarch, 0); ++ ++ tdep->regs.ra = tdep->regs.r + 1; ++ tdep->regs.sp = tdep->regs.r + 3; ++ ++ for (i = 0; i < ARRAY_SIZE (loongarch_r_normal_name); ++i) ++ if (loongarch_r_normal_name[i][0] != '\0') ++ user_reg_add (gdbarch, loongarch_r_normal_name[i] + 1, ++ value_of_loongarch_user_reg, ++ (void *) (size_t) (tdep->regs.r + i)); ++ ++ for (i = 0; i < ARRAY_SIZE (loongarch_r_lp64_name); ++i) ++ if (loongarch_r_lp64_name[i][0] != '\0') ++ user_reg_add (gdbarch, loongarch_r_lp64_name[i] + 1, ++ value_of_loongarch_user_reg, ++ (void *) (size_t) (tdep->regs.r + i)); ++ ++ for (i = 0; i < ARRAY_SIZE (loongarch_r_lp64_name1); ++i) ++ if (loongarch_r_lp64_name[i][0] != '\0') ++ user_reg_add (gdbarch, loongarch_r_lp64_name1[i] + 1, ++ value_of_loongarch_user_reg, ++ (void *) (size_t) (tdep->regs.r + i)); ++ ++ /* Functions handling dummy frames. */ ++ set_gdbarch_push_dummy_call (gdbarch, ++ loongarch_lp32lp64_push_dummy_call); ++ set_gdbarch_return_value (gdbarch, loongarch_lp64_return_value); ++ ++ } ++ else ++ gdb_assert_not_reached ("unknown ABI"); ++ ++ /* Hook in OS ABI-specific overrides, if they have been registered. */ ++ info.target_desc = tdesc; ++ info.tdesc_data = tdesc_data; ++ ++ /* Register architecture. */ ++ set_gdbarch_num_regs (gdbarch, regnum); ++ set_gdbarch_sp_regnum (gdbarch, tdep->regs.sp); ++ set_gdbarch_pc_regnum (gdbarch, tdep->regs.pc); ++ ++ tdesc_use_registers (gdbarch, tdesc, std::move (tdesc_data)); ++ ++ /* Functions to supply register information. */ ++ set_gdbarch_register_name (gdbarch, loongarch_register_name); ++ ++ /* Handle overlapping dwarf2 register code for fp/lsx/lasx. */ ++ set_gdbarch_convert_register_p (gdbarch, loongarch_convert_register_p); ++ set_gdbarch_register_to_value (gdbarch, loongarch_register_to_value); ++ set_gdbarch_value_to_register (gdbarch, loongarch_value_to_register); ++ ++ /* Functions to analyze frames. */ ++ set_gdbarch_skip_prologue (gdbarch, loongarch_skip_prologue); ++ set_gdbarch_inner_than (gdbarch, core_addr_lessthan); ++ set_gdbarch_frame_align (gdbarch, loongarch_frame_align); ++ ++ /* Functions to access frame data. */ ++ set_gdbarch_unwind_pc (gdbarch, loongarch_unwind_pc); ++ set_gdbarch_unwind_sp (gdbarch, loongarch_unwind_sp); ++ ++ set_gdbarch_dummy_id (gdbarch, loongarch_dummy_id); ++ ++ set_gdbarch_software_single_step (gdbarch, loongarch_software_single_step); ++ ++ set_gdbarch_breakpoint_kind_from_pc (gdbarch, ++ loongarch_breakpoint::kind_from_pc); ++ set_gdbarch_sw_breakpoint_from_kind (gdbarch, ++ loongarch_breakpoint::bp_from_kind); ++ ++ set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1); ++ ++ /* Virtual tables. */ ++ set_gdbarch_vbit_in_delta (gdbarch, 1); ++ ++ set_gdbarch_gcc_target_options (gdbarch, loongarch_gcc_target_options); ++ ++ gdbarch_init_osabi (info, gdbarch); ++ set_gdbarch_register_reggroup_p (gdbarch, loongarch_register_reggroup_p); ++ set_gdbarch_register_name (gdbarch, loongarch_register_name); ++ ++ set_gdbarch_get_longjmp_target (gdbarch, loongarch_get_longjmp_target); ++ ++ /* Frame unwinders. Use DWARF debug info if available, otherwise use our own ++ unwinder. */ ++ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, loongarch_dwarf2_reg_to_regnum); ++ dwarf2_append_unwinders (gdbarch); ++ frame_unwind_append_unwinder (gdbarch, &loongarch_frame_unwind); ++ ++ return gdbarch; ++} ++ ++static void ++info_loongarch (const char *addr_exp, int from_tty) ++{ ++ char *buf, *t; ++ int set; ++ char *item; ++ unsigned long addr; ++ unsigned long long value; ++ ++ if (addr_exp) ++ { ++ addr_exp = skip_spaces (addr_exp); ++ buf = (char *) alloca (strlen (addr_exp) + 1); ++ strcpy (buf, addr_exp); ++ loongarch_eliminate_adjacent_repeat_char (buf, ' '); ++ } ++ else ++ goto Empty; ++ ++ if (!(t = strtok (buf, " "))) ++ goto Empty; ++ if (strcmp (t, "set") == 0) ++ { ++ t = strtok (NULL, " "); ++ set = 1; ++ } ++ else ++ { ++ if (strcmp (t, "get") == 0) ++ t = strtok (NULL, " "); ++ set = 0; ++ } ++ if (!(item = t)) ++ goto Empty; ++ if (!(t = strtok (NULL, " "))) ++ goto Empty; ++ addr = strtoul (t, NULL, 0); ++ if (set && (t = strtok (NULL, " ")) == NULL) ++ goto Empty; ++ value = strtoll (t, NULL, 0); ++ ++ if (set) ++ if (strcmp (item, "cpucfg") == 0) ++ { ++ uint32_t val32 = value; ++ ULONGEST xfered_len; ++ target_xfer_partial (current_inferior ()->top_target (), ++ TARGET_OBJECT_LARCH, "cpucfg", NULL, ++ (const gdb_byte *) &val32, addr * 4, ++ sizeof (val32), &xfered_len); ++ if (0 < xfered_len) ++ fprintf_unfiltered (gdb_stdout, "ok\n"); ++ else ++ error ("Set failed"); ++ } ++ else ++ { ++ uint64_t val64 = value; ++ ULONGEST xfered_len; ++ target_xfer_partial (current_inferior ()->top_target (), ++ TARGET_OBJECT_LARCH, item, NULL, ++ (const gdb_byte *) &val64, addr * 8, ++ sizeof (val64), &xfered_len); ++ if (0 < xfered_len) ++ fprintf_unfiltered (gdb_stdout, "ok\n"); ++ else ++ error ("Set failed"); ++ } ++ else if (strcmp (item, "cpucfg") == 0) ++ { ++ uint32_t val32; ++ ULONGEST xfered_len; ++ target_xfer_partial (current_inferior ()->top_target (), ++ TARGET_OBJECT_LARCH, "cpucfg", (gdb_byte *) &val32, ++ NULL, addr * 4, sizeof (val32), &xfered_len); ++ if (0 < xfered_len) ++ fprintf_unfiltered (gdb_stdout, "return is %x\n", val32); ++ else ++ error ("Get failed"); ++ } ++ else ++ { ++ uint64_t val64; ++ ULONGEST xfered_len; ++ target_xfer_partial (current_inferior ()->top_target (), ++ TARGET_OBJECT_LARCH, item, (gdb_byte *) &val64, ++ NULL, addr * 8, sizeof (val64), &xfered_len); ++ if (0 < xfered_len) ++ fprintf_unfiltered (gdb_stdout, "return is %llx\n", (long long) val64); ++ else ++ error ("Get failed"); ++ } ++ ++ return; ++Empty: ++ error ("Empty. Should be 'info loongarch ([get]|set) item addr [value]'"); ++} ++ ++void _initialize_loongarch_tdep (); ++void ++_initialize_loongarch_tdep () ++{ ++ gdbarch_register (bfd_arch_loongarch, loongarch_gdbarch_init, NULL); ++ ++ add_info ("loongarch", info_loongarch, _ ("Loongarch extra")); ++ ++ /* Debug this files internals. */ ++ add_setshow_zuinteger_cmd ("loongarch", class_maintenance, &loongarch_debug, ++ _ ("\ ++Set loongarch debugging."), ++ _ ("\ ++Show loongarch debugging."), ++ _ ("\ ++When non-zero, loongarch specific debugging is enabled."), ++ NULL, NULL, &setdebuglist, &showdebuglist); ++} +diff --git gdb-10.2/gdb/loongarch-tdep.h gdb-10.2/gdb/loongarch-tdep.h +new file mode 100644 +index 0000000..12bc78e +--- /dev/null ++++ gdb-10.2/gdb/loongarch-tdep.h +@@ -0,0 +1,61 @@ ++/* Target-dependent code for GNU/Linux LoongArch. ++ ++ Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef LOONGARCH_TDEP_H ++#define LOONGARCH_TDEP_H ++ ++#include "arch/loongarch.h" ++ ++/* Register numbers of important registers. Note that most of ++ these values are "real" register numbers, and correspond to the ++ general registers of the machine. */ ++#define LOONGARCH_A0_REGNUM 4 /* Loc of first arg */ ++ ++struct gdbarch_tdep ++{ ++ int ef_abi; /* EF_LOONGARCH_ABI */ ++ ++ struct ++ { ++ int r; ++ int ra; ++ int sp; ++ int orig_a0; ++ int pc; ++ int badv; ++ ++ int f; ++ int fcc; ++ int fcsr; ++ int vr; ++ int xr; ++ ++ int scr; ++ int EFLAG; ++ int x86_top; ++ ++ } regs; ++ ++ /* Return the expected next PC if FRAME is stopped at a syscall ++ instruction. */ ++ CORE_ADDR (*syscall_next_pc) (struct frame_info *frame); ++}; ++ ++#endif /* LOONGARCH_TDEP_H */ +diff --git gdb-10.2/gdb/nat/loongarch-linux-watch.c gdb-10.2/gdb/nat/loongarch-linux-watch.c +new file mode 100644 +index 0000000..f7c0dbf +--- /dev/null ++++ gdb-10.2/gdb/nat/loongarch-linux-watch.c +@@ -0,0 +1,330 @@ ++/* Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ Based on MIPS target. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "gdbsupport/common-defs.h" ++#include "nat/gdb_ptrace.h" ++#include "loongarch-linux-watch.h" ++ ++/* Assuming usable watch registers REGS, return the irwmask of ++ register N. */ ++ ++uint8_t ++loongarch_linux_watch_get_irwmask (struct pt_watch_regs *regs, int n) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ return regs->la32[n].irwmask & IRW_MASK; ++ case pt_watch_style_la64: ++ return regs->la64[n].irwmask & IRW_MASK; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, return the irwstat of ++ register N. */ ++ ++uint8_t ++loongarch_linux_watch_get_irwstat (struct pt_watch_regs *regs, int n) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ return regs->la32[n].irwstat & IRW_MASK; ++ case pt_watch_style_la64: ++ return regs->la64[n].irwstat & IRW_MASK; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, return the num_valid. */ ++ ++uint32_t ++loongarch_linux_watch_get_num_valid (struct pt_watch_regs *regs) ++{ ++ return regs->num_valid; ++} ++ ++/* Assuming usable watch registers REGS, return the addr of ++ register N. */ ++ ++CORE_ADDR ++loongarch_linux_watch_get_addr (struct pt_watch_regs *regs, int n) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ return regs->la32[n].addr; ++ case pt_watch_style_la64: ++ return regs->la64[n].addr; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, set addr of register N to ++ VALUE. */ ++ ++void ++loongarch_linux_watch_set_addr (struct pt_watch_regs *regs, int n, ++ CORE_ADDR value) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ /* The cast will never throw away bits as 64 bit addresses can ++ never be used on a 32 bit kernel. */ ++ regs->la32[n].addr = (uint32_t) value; ++ break; ++ case pt_watch_style_la64: ++ regs->la64[n].addr = value; ++ break; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, return the mask of ++ register N. */ ++ ++CORE_ADDR ++loongarch_linux_watch_get_mask (struct pt_watch_regs *regs, int n) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ return regs->la32[n].mask; ++ case pt_watch_style_la64: ++ return regs->la64[n].mask; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, set mask of register N to ++ VALUE. */ ++ ++void ++loongarch_linux_watch_set_mask (struct pt_watch_regs *regs, int n, ++ CORE_ADDR value) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ regs->la32[n].mask = value; ++ break; ++ case pt_watch_style_la64: ++ regs->la64[n].mask = value; ++ break; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, return the irw of ++ register N. */ ++ ++uint8_t ++loongarch_linux_watch_get_irw (struct pt_watch_regs *regs, int n) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ return regs->la32[n].irw; ++ case pt_watch_style_la64: ++ return regs->la64[n].irw; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Assuming usable watch registers REGS, set irw of register N to ++ VALUE. */ ++ ++void ++loongarch_linux_watch_set_irw (struct pt_watch_regs *regs, int n, ++ uint8_t value) ++{ ++ switch (regs->style) ++ { ++ case pt_watch_style_la32: ++ regs->la32[n].irw = value; ++ break; ++ case pt_watch_style_la64: ++ regs->la64[n].irw = value; ++ break; ++ default: ++ internal_error (__FILE__, __LINE__, ++ _ ("Unrecognized watch register style")); ++ } ++} ++ ++/* Read the watch registers of process LWPID and store it in ++ WATCH_READBACK. Save true to *WATCH_READBACK_VALID if watch ++ registers are valid. Return 1 if watch registers are usable. ++ Cached information is used unless FORCE is true. */ ++ ++int ++loongarch_linux_read_watch_registers (long lwpid, ++ struct pt_watch_regs *watch_readback, ++ int *watch_readback_valid, int force) ++{ ++ if (force || *watch_readback_valid == 0) ++ { ++ if (ptrace (PTRACE_GET_WATCH_REGS, lwpid, watch_readback, NULL) == -1) ++ { ++ *watch_readback_valid = -1; ++ return 0; ++ } ++ if (watch_readback->num_valid == 0) ++ { ++ *watch_readback_valid = -1; ++ return 0; ++ } ++ /* Watch registers appear to be usable. */ ++ *watch_readback_valid = 1; ++ } ++ return (*watch_readback_valid == 1) ? 1 : 0; ++} ++ ++/* Convert GDB's TYPE to an IRW mask. */ ++ ++uint32_t ++loongarch_linux_watch_type_to_irw (enum target_hw_bp_type type) ++{ ++ switch (type) ++ { ++ case hw_write: ++ return W_MASK; ++ case hw_read: ++ return R_MASK; ++ case hw_access: ++ return (W_MASK | R_MASK); ++ case hw_execute: ++ return I_MASK; ++ default: ++ return 0; ++ } ++} ++ ++/* Set any low order bits in MASK that are not set. */ ++ ++static CORE_ADDR ++fill_mask (CORE_ADDR mask) ++{ ++ CORE_ADDR f = 1; ++ ++ while (f && f < mask) ++ { ++ mask |= f; ++ f <<= 1; ++ } ++ return mask; ++} ++ ++/* Try to add a single watch to the specified registers REGS. The ++ address of added watch is ADDR, the length is LEN, and the mask ++ is IRW. Return 1 on success, 0 on failure. */ ++ ++int ++loongarch_linux_watch_try_one_watch (struct pt_watch_regs *regs, ++ CORE_ADDR addr, int len, uint32_t irw) ++{ ++ CORE_ADDR base_addr, last_byte; ++ CORE_ADDR mask_bits, t_addr, t_mask; ++ uint8_t t_irw; ++ int i; ++ ++ if (len <= 0) ++ return 0; ++ ++ last_byte = addr + len - 1; ++ mask_bits = fill_mask (addr ^ last_byte); ++ base_addr = addr & ~mask_bits; ++ ++ /* Check to see if it is covered by current registers. */ ++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++) ++ { ++ t_addr = loongarch_linux_watch_get_addr (regs, i); ++ t_irw = loongarch_linux_watch_get_irw (regs, i); ++ if (t_addr != 0 && irw == ((uint32_t) t_irw & irw)) ++ { ++ t_mask = loongarch_linux_watch_get_mask (regs, i); ++ if (addr >= t_addr && last_byte <= (t_addr + t_mask)) ++ return 1; ++ } ++ } ++ /* Try to find an empty register. */ ++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++) ++ { ++ t_addr = loongarch_linux_watch_get_addr (regs, i); ++ if (t_addr == 0 ++ && irw == (loongarch_linux_watch_get_irwmask (regs, i) & irw)) ++ { ++ /* It fits, we'll take it. */ ++ loongarch_linux_watch_set_addr (regs, i, base_addr); ++ loongarch_linux_watch_set_mask (regs, i, mask_bits); ++ loongarch_linux_watch_set_irw (regs, i, irw); ++ return 1; ++ } ++ } ++ /* It didn't fit anywhere, we failed. */ ++ return 0; ++} ++ ++/* Fill in the watch registers REGS with the currently cached ++ watches CURRENT_WATCHES. */ ++ ++void ++loongarch_linux_watch_populate_regs ( ++ struct loongarch_watchpoint *current_watches, struct pt_watch_regs *regs) ++{ ++ struct loongarch_watchpoint *w; ++ int i; ++ ++ /* Clear them out. */ ++ for (i = 0; i < loongarch_linux_watch_get_num_valid (regs); i++) ++ { ++ loongarch_linux_watch_set_addr (regs, i, 0); ++ loongarch_linux_watch_set_mask (regs, i, 0); ++ loongarch_linux_watch_set_irw (regs, i, 0); ++ } ++ ++ w = current_watches; ++ while (w) ++ { ++ uint32_t irw = loongarch_linux_watch_type_to_irw (w->type); ++ ++ i = loongarch_linux_watch_try_one_watch (regs, w->addr, w->len, irw); ++ /* They must all fit, because we previously calculated that they ++ would. */ ++ gdb_assert (i); ++ w = w->next; ++ } ++} +diff --git gdb-10.2/gdb/nat/loongarch-linux-watch.h gdb-10.2/gdb/nat/loongarch-linux-watch.h +new file mode 100644 +index 0000000..ab80b44 +--- /dev/null ++++ gdb-10.2/gdb/nat/loongarch-linux-watch.h +@@ -0,0 +1,132 @@ ++/* Copyright (C) 2021 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GDB. ++ ++ Based on MIPS target. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef LOONGARCH_LINUX_WATCH_H ++#define LOONGARCH_LINUX_WATCH_H 1 ++ ++#include <asm/ptrace.h> ++#include "gdbsupport/break-common.h" ++ ++#define MAX_DEBUG_REGISTER 16 ++ ++/* If macro PTRACE_GET_WATCH_REGS is not defined, kernel header doesn't ++ have hardware watchpoint-related structures. Define them below. */ ++ ++#ifndef PTRACE_GET_WATCH_REGS ++#define PTRACE_GET_WATCH_REGS 0xd0 ++#define PTRACE_SET_WATCH_REGS 0xd1 ++ ++enum pt_watch_style ++{ ++ pt_watch_style_la32, ++ pt_watch_style_la64 ++}; ++ ++/* A value of zero in a watchlo indicates that it is available. */ ++ ++struct la32_watch_regs ++{ ++ uint32_t addr; ++ /* Lower 16 bits of watchhi. */ ++ uint32_t mask; ++ /* Valid mask and I R W bits. ++ * bit 0 -- 1 if W bit is usable. ++ * bit 1 -- 1 if R bit is usable. ++ * bit 2 -- 1 if I bit is usable. ++ * bits 3 - 11 -- Valid watchhi mask bits. ++ */ ++ uint8_t irw; ++ uint8_t irwstat; ++ uint8_t irwmask; ++ /* There is confusion across gcc versions about structure alignment, ++ so we force 8 byte alignment for these structures so they match ++ the kernel even if it was build with a different gcc version. */ ++} __attribute__ ((aligned (8))); ++ ++struct la64_watch_regs ++{ ++ uint64_t addr; ++ uint64_t mask; ++ uint8_t irw; ++ uint8_t irwstat; ++ uint8_t irwmask; ++} __attribute__ ((aligned (8))); ++ ++struct pt_watch_regs ++{ ++ uint16_t max_valid; ++ uint16_t num_valid; ++ enum pt_watch_style style; ++ union ++ { ++ struct la32_watch_regs la32[MAX_DEBUG_REGISTER]; ++ struct la64_watch_regs la64[MAX_DEBUG_REGISTER]; ++ }; ++}; ++ ++#endif /* !PTRACE_GET_WATCH_REGS */ ++ ++#define W_BIT 0 ++#define R_BIT 1 ++#define I_BIT 2 ++ ++#define W_MASK (1 << W_BIT) ++#define R_MASK (1 << R_BIT) ++#define I_MASK (1 << I_BIT) ++ ++#define IRW_MASK (I_MASK | R_MASK | W_MASK) ++ ++/* We keep list of all watchpoints we should install and calculate the ++ watch register values each time the list changes. This allows for ++ easy sharing of watch registers for more than one watchpoint. */ ++ ++struct loongarch_watchpoint ++{ ++ CORE_ADDR addr; ++ int len; ++ enum target_hw_bp_type type; ++ struct loongarch_watchpoint *next; ++}; ++ ++uint32_t loongarch_linux_watch_get_num_valid (struct pt_watch_regs *regs); ++uint8_t loongarch_linux_watch_get_irwmask (struct pt_watch_regs *regs, int n); ++uint8_t loongarch_linux_watch_get_irwstat (struct pt_watch_regs *regs, int n); ++CORE_ADDR loongarch_linux_watch_get_addr (struct pt_watch_regs *regs, int n); ++void loongarch_linux_watch_set_addr (struct pt_watch_regs *regs, int n, ++ CORE_ADDR value); ++CORE_ADDR loongarch_linux_watch_get_mask (struct pt_watch_regs *regs, int n); ++void loongarch_linux_watch_set_mask (struct pt_watch_regs *regs, int n, ++ CORE_ADDR value); ++uint8_t loongarch_linux_watch_get_irw (struct pt_watch_regs *regs, int n); ++void loongarch_linux_watch_set_irw (struct pt_watch_regs *regs, int n, ++ uint8_t value); ++int loongarch_linux_watch_try_one_watch (struct pt_watch_regs *regs, ++ CORE_ADDR addr, int len, ++ uint32_t irw); ++void loongarch_linux_watch_populate_regs ( ++ struct loongarch_watchpoint *current_watches, struct pt_watch_regs *regs); ++uint32_t loongarch_linux_watch_type_to_irw (enum target_hw_bp_type type); ++ ++int loongarch_linux_read_watch_registers (long lwpid, ++ struct pt_watch_regs *watch_readback, ++ int *watch_readback_valid, ++ int force); ++ ++#endif /* #define LOONGARCH_LINUX_WATCH_H */ +diff --git gdb-10.2/gdb/remote.c gdb-10.2/gdb/remote.c +index 4896c2a..67a9acd 100644 +--- gdb-10.2/gdb/remote.c ++++ gdb-10.2/gdb/remote.c +@@ -1983,6 +1983,8 @@ enum { + PACKET_qXfer_statictrace_read, + PACKET_qXfer_traceframe_info, + PACKET_qXfer_uib, ++ PACKET_qXfer_loongarch_read, ++ PACKET_qXfer_loongarch_write, + PACKET_qGetTIBAddr, + PACKET_qGetTLSAddr, + PACKET_qSupported, +@@ -5154,6 +5156,10 @@ static const struct protocol_feature remote_protocol_features[] = { + PACKET_qXfer_threads }, + { "qXfer:traceframe-info:read", PACKET_DISABLE, remote_supported_packet, + PACKET_qXfer_traceframe_info }, ++ { "qXfer:loongarch:read", PACKET_DISABLE, remote_supported_packet, ++ PACKET_qXfer_loongarch_read }, ++ { "qXfer:loongarch:write", PACKET_DISABLE, remote_supported_packet, ++ PACKET_qXfer_loongarch_write }, + { "QPassSignals", PACKET_DISABLE, remote_supported_packet, + PACKET_QPassSignals }, + { "QCatchSyscalls", PACKET_DISABLE, remote_supported_packet, +@@ -11013,6 +11019,18 @@ remote_target::xfer_partial (enum target_object object, + return TARGET_XFER_E_IO; + } + ++ if (object == TARGET_OBJECT_LARCH) ++ { ++ if (readbuf) ++ return remote_read_qxfer ("loongarch", annex, readbuf, offset, len, ++ xfered_len, &remote_protocol_packets ++ [PACKET_qXfer_loongarch_read]); ++ else ++ return remote_write_qxfer ("loongarch", annex, writebuf, offset, len, ++ xfered_len, &remote_protocol_packets ++ [PACKET_qXfer_loongarch_write]); ++ } ++ + /* Only handle flash writes. */ + if (writebuf != NULL) + { +@@ -14626,6 +14644,13 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL, + add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_uib], + "qXfer:uib:read", "unwind-info-block", 0); + ++ add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_loongarch_read], ++ "qXfer:loongarch:read", "read-loongarch-object", 0); ++ ++ add_packet_config_cmd ++ (&remote_protocol_packets[PACKET_qXfer_loongarch_write], ++ "qXfer:loongarch:write", "write-loongarch-object", 0); ++ + add_packet_config_cmd (&remote_protocol_packets[PACKET_qGetTLSAddr], + "qGetTLSAddr", "get-thread-local-storage-address", + 0); +diff --git gdb-10.2/gdb/target.h gdb-10.2/gdb/target.h +index 9603912..40a3cce 100644 +--- gdb-10.2/gdb/target.h ++++ gdb-10.2/gdb/target.h +@@ -135,6 +135,9 @@ enum inferior_event_type + + enum target_object + { ++ /* LARCH target specific transfer. See "loongarch-nat.c" "corelow.c" ++ and "remote.c". */ ++ TARGET_OBJECT_LARCH, + /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */ + TARGET_OBJECT_AVR, + /* Transfer up-to LEN bytes of memory starting at OFFSET. */ +diff --git gdb-10.2/gdb/testsuite/gdb.base/dump.exp gdb-10.2/gdb/testsuite/gdb.base/dump.exp +index 2b79237..64d5b39 100644 +--- gdb-10.2/gdb/testsuite/gdb.base/dump.exp ++++ gdb-10.2/gdb/testsuite/gdb.base/dump.exp +@@ -143,11 +143,13 @@ make_dump_file "dump srec val [set intarr1.srec] intarray" \ + make_dump_file "dump srec val [set intstr1.srec] intstruct" \ + "dump struct as value, srec" + ++if { ![istarget loongarch*-*-*] } { + make_dump_file "dump ihex val [set intarr1.ihex] intarray" \ + "dump array as value, intel hex" + + make_dump_file "dump ihex val [set intstr1.ihex] intstruct" \ + "dump struct as value, intel hex" ++} + + make_dump_file "dump tekhex val [set intarr1.tekhex] intarray" \ + "dump array as value, tekhex" +@@ -244,11 +246,13 @@ make_dump_file "dump srec mem [set intarr2.srec] $array_start $array_end" \ + make_dump_file "dump srec mem [set intstr2.srec] $struct_start $struct_end" \ + "dump struct as memory, srec" + ++if { ![istarget loongarch*-*-*] } { + make_dump_file "dump ihex mem [set intarr2.ihex] $array_start $array_end" \ + "dump array as memory, ihex" + + make_dump_file "dump ihex mem [set intstr2.ihex] $struct_start $struct_end" \ + "dump struct as memory, ihex" ++} + + make_dump_file "dump tekhex mem [set intarr2.tekhex] $array_start $array_end" \ + "dump array as memory, tekhex" +diff --git gdb-10.2/gdb/testsuite/gdb.base/float.exp gdb-10.2/gdb/testsuite/gdb.base/float.exp +index dc5e2fa..d179a8f 100644 +--- gdb-10.2/gdb/testsuite/gdb.base/float.exp ++++ gdb-10.2/gdb/testsuite/gdb.base/float.exp +@@ -120,6 +120,8 @@ if { [is_aarch64_target] } then { + pass "info float (without FPU)" + } + } ++} elseif [istarget "loongarch*-*-*"] then { ++ gdb_test "info float" "f.*fcc0.*fcsr.*" "info float" + } else { + gdb_test "info float" "No floating.point info available for this processor." "info float (unknown target)" + } +diff --git gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp +index 3695a1e..f19f5b9 100644 +--- gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp ++++ gdb-10.2/gdb/testsuite/gdb.trace/entry-values.exp +@@ -62,6 +62,8 @@ if { [istarget "arm*-*-*"] || [istarget "aarch64*-*-*"] } { + # returns. The only exception is JALRC, in which case execution + # resumes from `insn1' instead. + set call_insn {jalrc|[jb]al[sxr]*[ \t][^\r\n]+\r\n} ++} elseif { [istarget "loongarch*-*-*"] } { ++ set call_insn "bl" + } else { + set call_insn "call" + } +diff --git gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp +index 1ee6ae1..4d69fb3 100644 +--- gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp ++++ gdb-10.2/gdb/testsuite/gdb.xml/tdesc-regs.exp +@@ -82,6 +82,11 @@ switch -glob -- [istarget] { + set regdir "i386/" + set core-regs {64bit-core.xml 64bit-sse.xml} + } ++ "loongarch64-*-*" { ++ set architecture "loongarch64" ++ set regdir "loongarch/" ++ set core-regs {base64.xml fpu64.xml lbt64.xml lsx.xml lasx.xml} ++ } + } + + # If no core registers were specified, assume this target does not +diff --git gdb-10.2/gdbserver/Makefile.in gdb-10.2/gdbserver/Makefile.in +index 2bd3a57..3bd8970 100644 +--- gdb-10.2/gdbserver/Makefile.in ++++ gdb-10.2/gdbserver/Makefile.in +@@ -182,6 +182,7 @@ SFILES = \ + $(srcdir)/linux-arc-low.cc \ + $(srcdir)/linux-arm-low.cc \ + $(srcdir)/linux-ia64-low.cc \ ++ $(srcdir)/linux-loongarch-low.cc \ + $(srcdir)/linux-low.cc \ + $(srcdir)/linux-m68k-low.cc \ + $(srcdir)/linux-mips-low.cc \ +@@ -214,6 +215,7 @@ SFILES = \ + $(srcdir)/../gdb/arch/arm.c \ + $(srcdir)/../gdb/arch/arm-get-next-pcs.c \ + $(srcdir)/../gdb/arch/arm-linux.c \ ++ $(srcdir)/../gdb/arch/loongarch.c \ + $(srcdir)/../gdb/arch/ppc-linux-common.c \ + $(srcdir)/../gdb/arch/riscv.c \ + $(srcdir)/../gdb/nat/aarch64-sve-linux-ptrace.c \ +diff --git gdb-10.2/gdbserver/configure.srv gdb-10.2/gdbserver/configure.srv +index 0cb5072..c4ca3a1 100644 +--- gdb-10.2/gdbserver/configure.srv ++++ gdb-10.2/gdbserver/configure.srv +@@ -116,6 +116,13 @@ case "${gdbserver_host}" in + srv_tgtobj="$srv_linux_obj linux-ia64-low.o" + srv_linux_usrregs=yes + ;; ++ loongarch*-*-linux*) srv_tgtobj="arch/loongarch.o arch/loongarch-linux-nat.o" ++ srv_tgtobj="${srv_tgtobj} linux-loongarch-low.o" ++ srv_tgtobj="${srv_tgtobj} ${srv_linux_obj}" ++ srv_linux_regsets=yes ++ srv_linux_usrregs=yes ++ srv_linux_thread_db=yes ++ ;; + m68*-*-linux*) if test "$gdb_cv_m68k_is_coldfire" = yes; then + srv_regobj=reg-cf.o + else +diff --git gdb-10.2/gdbserver/linux-loongarch-low.cc gdb-10.2/gdbserver/linux-loongarch-low.cc +new file mode 100644 +index 0000000..cd8ad6e +--- /dev/null ++++ gdb-10.2/gdbserver/linux-loongarch-low.cc +@@ -0,0 +1,284 @@ ++/* GNU/Linux/LoongArch specific low level interface, for the remote server ++ for GDB. ++ Copyright (C) 2022 Free Software Foundation, Inc. ++ ++ This file is part of GDB. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program. If not, see <http://www.gnu.org/licenses/>. */ ++ ++#include "server.h" ++#include "linux-low.h" ++#include "tdesc.h" ++#include "elf/common.h" ++#include "arch/loongarch-linux-nat.h" ++ ++/* Linux target op definitions for the LoongArch architecture. */ ++ ++class loongarch_target : public linux_process_target ++{ ++public: ++ ++ const regs_info *get_regs_info () override; ++ ++ int breakpoint_kind_from_pc (CORE_ADDR *pcptr) override; ++ ++ const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override; ++ ++protected: ++ ++ void low_arch_setup () override; ++ ++ bool low_cannot_fetch_register (int regno) override; ++ ++ bool low_cannot_store_register (int regno) override; ++ ++ bool low_fetch_register (regcache *regcache, int regno) override; ++ ++ bool low_supports_breakpoints () override; ++ ++ CORE_ADDR low_get_pc (regcache *regcache) override; ++ ++ void low_set_pc (regcache *regcache, CORE_ADDR newpc) override; ++ ++ bool low_breakpoint_at (CORE_ADDR pc) override; ++}; ++ ++/* The singleton target ops object. */ ++ ++static loongarch_target the_loongarch_target; ++ ++bool ++loongarch_target::low_cannot_fetch_register (int regno) ++{ ++ gdb_assert_not_reached ("linux target op low_cannot_fetch_register " ++ "is not implemented by the target"); ++} ++ ++bool ++loongarch_target::low_cannot_store_register (int regno) ++{ ++ gdb_assert_not_reached ("linux target op low_cannot_store_register " ++ "is not implemented by the target"); ++} ++ ++/* Implementation of linux target ops method "low_arch_setup". */ ++ ++void ++loongarch_target::low_arch_setup () ++{ ++ static const char *expedite_regs[] = { "r3", "pc", NULL }; ++ int pid = lwpid_of (current_thread); ++ struct target_desc *tdesc = loongarch_linux_read_description_runtime (pid); ++ ++ if (!tdesc->expedite_regs) ++ init_target_desc (tdesc, expedite_regs); ++ current_process ()->tdesc = tdesc; ++} ++ ++/* Collect GPRs from REGCACHE into BUF. */ ++ ++static void ++loongarch_fill_gregset (struct regcache *regcache, void *buf) ++{ ++ const struct target_desc *tdesc = regcache->tdesc; ++ elf_gregset_t *regset = (elf_gregset_t *) buf; ++ int regno = find_regno (tdesc, "r0"); ++ int i; ++ ++ for (i = 1; i < 32; i++) ++ collect_register (regcache, regno + i, *regset + i); ++ collect_register_by_name (regcache, "orig_a0", *regset + 32); ++ collect_register_by_name (regcache, "pc", *regset + 33); ++ collect_register_by_name (regcache, "badv", *regset + 34); ++} ++ ++/* Supply GPRs from BUF into REGCACHE. */ ++ ++static void ++loongarch_store_gregset (struct regcache *regcache, const void *buf) ++{ ++ const struct target_desc *tdesc = regcache->tdesc; ++ const elf_gregset_t *regset = (const elf_gregset_t *) buf; ++ int regno = find_regno (tdesc, "r0"); ++ int i; ++ ++ supply_register_zeroed (regcache, regno); ++ for (i = 1; i < 32; i++) ++ supply_register (regcache, regno + i, *regset + i); ++ supply_register_by_name (regcache, "orig_a0", *regset + 32); ++ supply_register_by_name (regcache, "pc", *regset + 33); ++ supply_register_by_name (regcache, "badv", *regset + 34); ++} ++ ++/* Collect FPRs from REGCACHE into BUF. */ ++ ++static void ++loongarch_fill_fpregset (struct regcache *regcache, void *buf) ++{ ++ const struct target_desc *tdesc = regcache->tdesc; ++ int f = find_regno (tdesc, "f0"); ++ int fcc = find_regno (tdesc, "fcc0"); ++ int flen = register_size (regcache->tdesc, f); ++ gdb_byte *regbuf = (gdb_byte *) buf; ++ int i; ++ ++ for (i = 0; i < ELF_NFPREG - 2; i++, regbuf += flen) ++ collect_register (regcache, f + i, regbuf); ++ for (i = 0; i < 8; i++) ++ collect_register (regcache, fcc + i, regbuf++); ++ collect_register_by_name (regcache, "fcsr", regbuf); ++} ++ ++/* Supply FPRs from BUF into REGCACHE. */ ++ ++static void ++loongarch_store_fpregset (struct regcache *regcache, const void *buf) ++{ ++ const struct target_desc *tdesc = regcache->tdesc; ++ int f = find_regno (tdesc, "f0"); ++ int fcc = find_regno (tdesc, "fcc0"); ++ int flen = register_size (regcache->tdesc, f); ++ const gdb_byte *regbuf = (const gdb_byte *) buf; ++ int i; ++ ++ for (i = 0; i < ELF_NFPREG - 2; i++, regbuf += flen) ++ supply_register (regcache, f + i, regbuf); ++ for (i = 0; i < 8; i++) ++ supply_register (regcache, fcc + i, regbuf++); ++ supply_register_by_name (regcache, "fcsr", regbuf); ++} ++ ++/* LoongArch/Linux regsets. */ ++static struct regset_info loongarch_regsets[] = { ++ { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PRSTATUS, sizeof (elf_gregset_t), ++ GENERAL_REGS, loongarch_fill_gregset, loongarch_store_gregset }, ++ { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_FPREGSET, sizeof (elf_fpregset_t), ++ FP_REGS, loongarch_fill_fpregset, loongarch_store_fpregset }, ++ NULL_REGSET ++}; ++ ++/* LoongArch/Linux regset information. */ ++static struct regsets_info loongarch_regsets_info = ++ { ++ loongarch_regsets, /* regsets */ ++ 0, /* num_regsets */ ++ NULL, /* disabled_regsets */ ++ }; ++ ++/* Definition of linux_target_ops data member "regs_info". */ ++static struct regs_info loongarch_regs = ++ { ++ NULL, /* regset_bitmap */ ++ NULL, /* usrregs */ ++ &loongarch_regsets_info, ++ }; ++ ++/* Implementation of linux target ops method "get_regs_info". */ ++ ++const regs_info * ++loongarch_target::get_regs_info () ++{ ++ return &loongarch_regs; ++} ++ ++/* Implementation of linux target ops method "low_fetch_register". */ ++ ++bool ++loongarch_target::low_fetch_register (regcache *regcache, int regno) ++{ ++ const struct target_desc *tdesc = regcache->tdesc; ++ ++ if (regno != find_regno (tdesc, "r0")) ++ return false; ++ supply_register_zeroed (regcache, regno); ++ return true; ++} ++ ++bool ++loongarch_target::low_supports_breakpoints () ++{ ++ return true; ++} ++ ++/* Implementation of linux target ops method "low_get_pc". */ ++ ++CORE_ADDR ++loongarch_target::low_get_pc (regcache *regcache) ++{ ++ if (register_size (regcache->tdesc, 0) == 8) ++ return linux_get_pc_64bit (regcache); ++ else ++ return linux_get_pc_32bit (regcache); ++} ++ ++/* Implementation of linux target ops method "low_set_pc". */ ++ ++void ++loongarch_target::low_set_pc (regcache *regcache, CORE_ADDR newpc) ++{ ++ if (register_size (regcache->tdesc, 0) == 8) ++ linux_set_pc_64bit (regcache, newpc); ++ else ++ linux_set_pc_32bit (regcache, newpc); ++} ++ ++#define loongarch_breakpoint_len 4 ++ ++/* LoongArch BRK software debug mode instruction. ++ This instruction needs to match gdb/loongarch-tdep.c ++ (loongarch_default_breakpoint). */ ++static const gdb_byte loongarch_breakpoint[] = {0x05, 0x00, 0x2a, 0x00}; ++ ++/* Implementation of target ops method "breakpoint_kind_from_pc". */ ++ ++int ++loongarch_target::breakpoint_kind_from_pc (CORE_ADDR *pcptr) ++{ ++ return loongarch_breakpoint_len; ++} ++ ++/* Implementation of target ops method "sw_breakpoint_from_kind". */ ++ ++const gdb_byte * ++loongarch_target::sw_breakpoint_from_kind (int kind, int *size) ++{ ++ *size = loongarch_breakpoint_len; ++ return (const gdb_byte *) &loongarch_breakpoint; ++} ++ ++/* Implementation of linux target ops method "low_breakpoint_at". */ ++ ++bool ++loongarch_target::low_breakpoint_at (CORE_ADDR pc) ++{ ++ gdb_byte insn[loongarch_breakpoint_len]; ++ ++ read_memory (pc, (unsigned char *) &insn, loongarch_breakpoint_len); ++ if (memcmp (insn, loongarch_breakpoint, loongarch_breakpoint_len) == 0) ++ return true; ++ ++ return false; ++} ++ ++/* The linux target ops object. */ ++ ++linux_process_target *the_linux_target = &the_loongarch_target; ++ ++/* Initialize the LoongArch/Linux target. */ ++ ++void ++initialize_low_arch () ++{ ++ initialize_regsets_info (&loongarch_regsets_info); ++} +diff --git gdb-10.2/include/dis-asm.h gdb-10.2/include/dis-asm.h +index 0532cef..ce43595 100644 +--- gdb-10.2/include/dis-asm.h ++++ gdb-10.2/include/dis-asm.h +@@ -303,6 +303,7 @@ extern void print_arm_disassembler_options (FILE *); + extern void print_arc_disassembler_options (FILE *); + extern void print_s390_disassembler_options (FILE *); + extern void print_wasm32_disassembler_options (FILE *); ++extern void print_loongarch_disassembler_options (FILE *); + extern bfd_boolean aarch64_symbol_is_valid (asymbol *, struct disassemble_info *); + extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *); + extern bfd_boolean csky_symbol_is_valid (asymbol *, struct disassemble_info *); +diff --git gdb-10.2/include/elf/common.h gdb-10.2/include/elf/common.h +index 571e21a..9296080 100644 +--- gdb-10.2/include/elf/common.h ++++ gdb-10.2/include/elf/common.h +@@ -342,6 +342,7 @@ + #define EM_BPF 247 /* Linux BPF – in-kernel virtual machine. */ + #define EM_NFP 250 /* Netronome Flow Processor. */ + #define EM_CSKY 252 /* C-SKY processor family. */ ++#define EM_LOONGARCH 258 /* LoongArch */ + + /* If it is necessary to assign new unofficial EM_* values, please pick large + random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision +@@ -662,6 +663,19 @@ + /* note name must be "LINUX". */ + #define NT_ARC_V2 0x600 /* ARC HS accumulator/extra registers. */ + /* note name must be "LINUX". */ ++#define NT_LARCH_CPUCFG 0xa00 /* LoongArch CPU config registers */ ++ /* note name must be "LINUX". */ ++#define NT_LARCH_CSR 0xa01 /* LoongArch Control State Registers */ ++ /* note name must be "LINUX". */ ++#define NT_LARCH_LSX 0xa02 /* LoongArch SIMD eXtension registers */ ++ /* note name must be "LINUX". */ ++#define NT_LARCH_LASX 0xa03 /* LoongArch Advanced SIMD eXtension registers */ ++ /* note name must be "LINUX". */ ++#define NT_LARCH_LBT 0xa04 /* LoongArch Binary Translation registers */ ++ /* note name must be "CORE". */ ++#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */ ++ /* note name must be "LINUX". */ ++ + #define NT_SIGINFO 0x53494749 /* Fields of siginfo_t. */ + #define NT_FILE 0x46494c45 /* Description of mapped files. */ + +diff --git gdb-10.2/include/elf/loongarch.h gdb-10.2/include/elf/loongarch.h +new file mode 100644 +index 0000000..74757b8 +--- /dev/null ++++ gdb-10.2/include/elf/loongarch.h +@@ -0,0 +1,267 @@ ++/* Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GNU Binutils. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the license, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef _ELF_LOONGARCH_H ++#define _ELF_LOONGARCH_H ++ ++#include "elf/reloc-macros.h" ++#include "libiberty.h" ++ ++START_RELOC_NUMBERS (elf_loongarch_reloc_type) ++/* Used by the dynamic linker. */ ++RELOC_NUMBER (R_LARCH_NONE, 0) ++RELOC_NUMBER (R_LARCH_32, 1) ++RELOC_NUMBER (R_LARCH_64, 2) ++RELOC_NUMBER (R_LARCH_RELATIVE, 3) ++RELOC_NUMBER (R_LARCH_COPY, 4) ++RELOC_NUMBER (R_LARCH_JUMP_SLOT, 5) ++RELOC_NUMBER (R_LARCH_TLS_DTPMOD32, 6) ++RELOC_NUMBER (R_LARCH_TLS_DTPMOD64, 7) ++RELOC_NUMBER (R_LARCH_TLS_DTPREL32, 8) ++RELOC_NUMBER (R_LARCH_TLS_DTPREL64, 9) ++RELOC_NUMBER (R_LARCH_TLS_TPREL32, 10) ++RELOC_NUMBER (R_LARCH_TLS_TPREL64, 11) ++RELOC_NUMBER (R_LARCH_IRELATIVE, 12) ++ ++/* Reserved for future relocs that the dynamic linker must understand. */ ++ ++/* Used by the static linker for relocating .text. */ ++RELOC_NUMBER (R_LARCH_MARK_LA, 20) ++RELOC_NUMBER (R_LARCH_MARK_PCREL, 21) ++ ++RELOC_NUMBER (R_LARCH_SOP_PUSH_PCREL, 22) ++ ++RELOC_NUMBER (R_LARCH_SOP_PUSH_ABSOLUTE, 23) ++ ++RELOC_NUMBER (R_LARCH_SOP_PUSH_DUP, 24) ++RELOC_NUMBER (R_LARCH_SOP_PUSH_GPREL, 25) ++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_TPREL, 26) ++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GOT, 27) ++RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GD, 28) ++RELOC_NUMBER (R_LARCH_SOP_PUSH_PLT_PCREL, 29) ++ ++RELOC_NUMBER (R_LARCH_SOP_ASSERT, 30) ++RELOC_NUMBER (R_LARCH_SOP_NOT, 31) ++RELOC_NUMBER (R_LARCH_SOP_SUB, 32) ++RELOC_NUMBER (R_LARCH_SOP_SL, 33) ++RELOC_NUMBER (R_LARCH_SOP_SR, 34) ++RELOC_NUMBER (R_LARCH_SOP_ADD, 35) ++RELOC_NUMBER (R_LARCH_SOP_AND, 36) ++RELOC_NUMBER (R_LARCH_SOP_IF_ELSE, 37) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_5, 38) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_U_10_12, 39) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_12, 40) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16, 41) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16_S2, 42) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_5_20, 43) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, 44) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, 45) ++RELOC_NUMBER (R_LARCH_SOP_POP_32_U, 46) ++ ++/* Used by the static linker for relocating non .text. */ ++RELOC_NUMBER (R_LARCH_ADD8, 47) ++RELOC_NUMBER (R_LARCH_ADD16, 48) ++RELOC_NUMBER (R_LARCH_ADD24, 49) ++RELOC_NUMBER (R_LARCH_ADD32, 50) ++RELOC_NUMBER (R_LARCH_ADD64, 51) ++RELOC_NUMBER (R_LARCH_SUB8, 52) ++RELOC_NUMBER (R_LARCH_SUB16, 53) ++RELOC_NUMBER (R_LARCH_SUB24, 54) ++RELOC_NUMBER (R_LARCH_SUB32, 55) ++RELOC_NUMBER (R_LARCH_SUB64, 56) ++ ++/* I don't know what it is. Existing in almost all other arch. */ ++RELOC_NUMBER (R_LARCH_GNU_VTINHERIT, 57) ++RELOC_NUMBER (R_LARCH_GNU_VTENTRY, 58) ++ ++ ++/* B16: ++ beq/bne/blt/bge/bltu/bgeu/jirl ++ %b16 (sym). */ ++RELOC_NUMBER (R_LARCH_B16, 64) ++/* B21: ++ beqz/bnez ++ %b16 (sym). */ ++RELOC_NUMBER (R_LARCH_B21, 65) ++/* B26: ++ b/bl ++ %b26 (sym) or %plt (sym). */ ++RELOC_NUMBER (R_LARCH_B26, 66) ++ ++/* ABS: 32/64 ++ lu12i.w ++ %abs_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_ABS_HI20, 67) ++/* ABS: 32/64 ++ ori ++ %abs_lo12 (sym). */ ++RELOC_NUMBER (R_LARCH_ABS_LO12, 68) ++ ++/* ABS: 64 ++ lu32i.d ++ %abs64_lo20 (sym). */ ++RELOC_NUMBER (R_LARCH_ABS64_LO20, 69) ++/* ABS: 64 ++ lu52i.d ++ %abs64_hi12 (sym). */ ++RELOC_NUMBER (R_LARCH_ABS64_HI12, 70) ++ ++/* PCREL: 32/64 ++ pcalau12i ++ %pc_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_PCALA_HI20, 71) ++/* PCREL: 32/64 ++ addi.w/addi.d ++ %pc_lo12 (sym). */ ++RELOC_NUMBER (R_LARCH_PCALA_LO12, 72) ++/* PCREL: 64 ++ lu32i.d ++ %pc64_lo20 (sym). */ ++RELOC_NUMBER (R_LARCH_PCALA64_LO20, 73) ++/* PCREL: 64 ++ lu52i.d ++ %pc64_hi12 (sym). */ ++RELOC_NUMBER (R_LARCH_PCALA64_HI12, 74) ++ ++/* GOT: 32/64 ++ pcalau12i ++ %got_pc_hi20 (got). */ ++RELOC_NUMBER (R_LARCH_GOT_PC_HI20, 75) ++/* GOT: 32/64 ++ ld.w/ld.d ++ %got_pc_lo12 (got). */ ++RELOC_NUMBER (R_LARCH_GOT_PC_LO12, 76) ++/* GOT: 32/64 ++ lu32i.d ++ %got_pc_lo12 (got). */ ++RELOC_NUMBER (R_LARCH_GOT64_PC_LO20, 77) ++/* GOT64: PCREL ++ lu52i.d ++ %got64_pc_hi12 (got). */ ++RELOC_NUMBER (R_LARCH_GOT64_PC_HI12, 78) ++/* GOT32/64: ABS ++ lu12i.w ++ %got_hi20 (got). */ ++RELOC_NUMBER (R_LARCH_GOT_HI20, 79) ++/* GOT: 32/64: ABS ++ ori ++ %got_lo12 (got). */ ++RELOC_NUMBER (R_LARCH_GOT_LO12, 80) ++/* GOT64: ABS ++ lu32i.d ++ %got64_lo20 (got). */ ++RELOC_NUMBER (R_LARCH_GOT64_LO20, 81) ++/* GOT64: ABS ++ lu52i.d ++ %got64_hi12 (got). */ ++RELOC_NUMBER (R_LARCH_GOT64_HI12, 82) ++ ++/* TLS-LE: 32/64 ++ lu12i.w ++ %le_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LE_HI20, 83) ++/* TLS-LE: 32/64 ++ ori ++ %le_lo12 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LE_LO12, 84) ++/* TLS-LE: 64 ++ lu32i.d ++ %le64_lo20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LE64_LO20, 85) ++/* TLS-LE: 64 ++ lu52i.d ++ %le64_hi12 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LE64_HI12, 86) ++ ++/* TLS-IE: 32/64 ++ pcalau12i ++ %ie_pc_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_IE_PC_HI20, 87) ++RELOC_NUMBER (R_LARCH_TLS_IE_PC_LO12, 88) ++RELOC_NUMBER (R_LARCH_TLS_IE64_PC_LO20, 89) ++RELOC_NUMBER (R_LARCH_TLS_IE64_PC_HI12, 90) ++ ++/* TLS-IE: 32/64: ABS ++ lu12i.w ++ %ie_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_IE_HI20, 91) ++RELOC_NUMBER (R_LARCH_TLS_IE_LO12, 92) ++RELOC_NUMBER (R_LARCH_TLS_IE64_LO20, 93) ++RELOC_NUMBER (R_LARCH_TLS_IE64_HI12, 94) ++ ++/* TLS-LD: 32/64 ++ pcalau12i ++ %ld_pc_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LD_PC_HI20, 95) ++/* TLS-LD: 32/64: ABS ++ lu12i.w ++ %ld_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_LD_HI20, 96) ++ ++/* TLS-GD: 32/64 ++ pcalau12i ++ %gd_pc_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_GD_PC_HI20, 97) ++/* TLS-GD: 32/64: ABS ++ lu12i.w ++ %gd_hi20 (sym). */ ++RELOC_NUMBER (R_LARCH_TLS_GD_HI20, 98) ++ ++/* For eh_frame and debug info. */ ++RELOC_NUMBER (R_LARCH_32_PCREL, 99) ++ ++/* RELAX. */ ++RELOC_NUMBER (R_LARCH_RELAX, 100) ++ ++END_RELOC_NUMBERS (R_LARCH_count) ++ ++/* Processor specific flags for the ELF header e_flags field. */ ++/*The flag lp64s/lp64f/lp64d/ilp32s/ilp32f/ilp32d 3bits. */ ++#define EF_LOONGARCH_ABI_LP64_SOFT_FLOAT 0x1 ++#define EF_LOONGARCH_ABI_LP64_SINGLE_FLOAT 0x2 ++#define EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT 0x3 ++ ++#define EF_LOONGARCH_ABI_ILP32_SOFT_FLOAT 0x5 ++#define EF_LOONGARCH_ABI_ILP32_SINGLE_FLOAT 0x6 ++#define EF_LOONGARCH_ABI_ILP32_DOUBLE_FLOAT 0x7 ++ ++#define EF_LOONGARCH_ABI_MASK 0x7 ++#define EF_LOONGARCH_ABI_ILP32_MASK 0x4 ++#define EF_LOONGARCH_ABI_FLOAT_MASK 0x3 ++#define EF_LOONGARCH_ABI_SOFT_FLOAT_MASK 0x1 ++#define EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK 0x2 ++#define EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK 0x3 ++ ++#define EF_LOONGARCH_ABI(abi) (EF_LOONGARCH_ABI_MASK & (abi)) ++ ++#define EF_LOONGARCH_IS_LP64(abi) \ ++ (EF_LOONGARCH_ABI(abi) && (!(EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK))) ++#define EF_LOONGARCH_IS_ILP32(abi) \ ++ (EF_LOONGARCH_ABI(abi) && (EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK)) ++ ++#define EF_LOONGARCH_IS_SOFT_FLOAT(abi) \ ++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SOFT_FLOAT_MASK)) ++ ++#define EF_LOONGARCH_IS_SINGLE_FLOAT(abi) \ ++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK)) ++ ++#define EF_LOONGARCH_IS_DOUBLE_FLOAT(abi) \ ++ (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK)) ++ ++#endif /* _ELF_LOONGARCH_H */ +diff --git gdb-10.2/include/opcode/loongarch.h gdb-10.2/include/opcode/loongarch.h +new file mode 100644 +index 0000000..c392234 +--- /dev/null ++++ gdb-10.2/include/opcode/loongarch.h +@@ -0,0 +1,239 @@ ++/* LoongArch assembler/disassembler support. ++ ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of GNU Binutils. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3 of the license, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#ifndef _LOONGARCH_H_ ++#define _LOONGARCH_H_ ++#include <stdint.h> ++ ++#ifdef __cplusplus ++extern "C" ++{ ++#endif ++ ++ typedef uint32_t insn_t; ++ ++ struct loongarch_opcode ++ { ++ const insn_t match; ++ const insn_t mask; /* High 1 byte is main opcode and it must be 0xf. */ ++#define LARCH_INSN_OPC(insn) ((insn & 0xf0000000) >> 28) ++ const char *const name; ++ ++ /* ACTUAL PARAMETER: ++ ++ // BNF with regular expression. ++args : token* end ++ ++ // just few char separate 'iden' ++token : ',' ++| '(' ++| ')' ++| iden // maybe a label (include at least one alphabet), ++ maybe a number, maybe a expr ++| regname ++ ++regname : '$' iden ++ ++iden : [a-zA-Z0-9\.\+\-]+ ++ ++end : '\0' ++ ++ ++FORMAT: A string to describe the format of actual parameter including ++bit field infomation. For example, "r5:5,r0:5,sr10:16<<2" matches ++"$12,$13,12345" and "$4,$7,a_label". That 'sr' means the instruction ++may need relocate. '10:16' means bit field of instruction. ++In a 'format', every 'escape's can be replaced to 'iden' or 'regname' ++acrroding to its meaning. We fill all information needed by ++disassembing and assembing to 'format'. ++ ++ // BNF with regular expression. ++format : escape (literal+ escape)* literal* end ++| (literal+ escape)* literal* end ++ ++end : '\0' // Get here means parse end. ++ ++ // The intersection between any two among FIRST (end), FIRST ++ // (literal) and FIRST (escape) must be empty. ++ // So we can build a simple parser. ++literal : ',' ++| '(' ++| ')' ++ ++ // Double '<'s means the real number is the immediate after shifting left. ++escape : esc_ch bit_field '<' '<' dec2 ++| esc_ch bit_field ++| esc_ch // for MACRO. non-macro format must indicate 'bit_field' ++ ++ // '|' means to concatenate nonadjacent bit fields ++ // For example, "10:16|0:4" means ++ // "16 bits starting from the 10th bit concatenating with 4 bits ++ // starting from the 0th bit". ++ // This is to say "[25..10]||[3..0]" (little endian). ++b_field : dec2 ':' dec2 ++| dec2 ':' dec2 '|' bit_field ++ ++esc_ch : 's' 'r' // signed immediate or label need relocate ++| 's' // signed immediate no need relocate ++| 'u' // unsigned immediate ++| 'l' // label needed relocate ++| 'r' // general purpose registers ++| 'f' // FPU registers ++| 'v' // 128 bit SIMD register ++| 'x' // 256 bit SIMD register ++ ++dec2 : [1-9][0-9]? ++| 0 ++ ++*/ ++ const char *const format; ++ ++ /* MACRO: Indicate how a macro instruction expand for assembling. ++ The main is to replace the '%num'(means the 'num'th 'escape' in ++ 'format') in 'macro' string to get the real instruction. ++ ++ Maybe need ++ */ ++ const char *const macro; ++ const int *include; ++ const int *exclude; ++ ++ const unsigned long pinfo; ++#define USELESS 0x0l ++ }; ++ ++ struct hash_control; ++ ++ struct loongarch_ase ++ { ++ const int *enabled; ++ struct loongarch_opcode *const opcodes; ++ const int *include; ++ const int *exclude; ++ ++ /* For disassemble to create main opcode hash table. */ ++ const struct loongarch_opcode *opc_htab[16]; ++ unsigned char opc_htab_inited; ++ ++ /* For GAS to create hash table. */ ++ struct htab *name_hash_entry; ++ }; ++ ++ extern int is_unsigned (const char *); ++ extern int is_signed (const char *); ++ extern int is_branch_label (const char *); ++ ++ extern int loongarch_get_bit_field_width (const char *bit_field, char **end); ++ extern int32_t loongarch_decode_imm (const char *bit_field, insn_t insn, ++ int si); ++ ++#define MAX_ARG_NUM_PLUS_2 9 ++ ++ extern size_t loongarch_split_args_by_comma (char *args, ++ const char *arg_strs[]); ++ extern char *loongarch_cat_splited_strs (const char *arg_strs[]); ++ extern insn_t loongarch_foreach_args ( ++ const char *format, const char *arg_strs[], ++ int32_t (*helper) (char esc1, char esc2, const char *bit_field, ++ const char *arg, void *context), ++ void *context); ++ ++ extern int loongarch_check_format (const char *format); ++ extern int loongarch_check_macro (const char *format, const char *macro); ++ ++ extern char *loongarch_expand_macro_with_format_map ( ++ const char *format, const char *macro, const char *const arg_strs[], ++ const char *(*map) (char esc1, char esc2, const char *arg), ++ char *(*helper) (const char *const arg_strs[], void *context), ++ void *context, size_t len_str); ++ extern char *loongarch_expand_macro ( ++ const char *macro, const char *const arg_strs[], ++ char *(*helper) (const char *const arg_strs[], void *context), ++ void *context, size_t len_str); ++ extern size_t loongarch_bits_imm_needed (int64_t imm, int si); ++ ++ extern void loongarch_eliminate_adjacent_repeat_char (char *dest, char c); ++ ++ extern int loongarch_parse_dis_options (const char *opts_in); ++ extern void loongarch_disassemble_one ( ++ int64_t pc, insn_t insn, ++ int (*fprintf_func) (void *stream, const char *format, ...), void *stream); ++ ++ extern const char *const loongarch_r_normal_name[32]; ++ extern const char *const loongarch_r_lp64_name[32]; ++ extern const char *const loongarch_r_lp64_name1[32]; ++ extern const char *const loongarch_f_normal_name[32]; ++ extern const char *const loongarch_f_lp64_name[32]; ++ extern const char *const loongarch_f_lp64_name1[32]; ++ extern const char *const loongarch_c_normal_name[8]; ++ extern const char *const loongarch_cr_normal_name[4]; ++ extern const char *const loongarch_v_normal_name[32]; ++ extern const char *const loongarch_x_normal_name[32]; ++ ++ extern struct loongarch_ase loongarch_ASEs[]; ++ ++ extern struct loongarch_ASEs_option ++ { ++ struct opt_abi ++ { ++ int elf_abi; ++ } abi; ++#define ase_abi abi.elf_abi ++ ++ struct opt_isa ++ { ++ int use_ilp32; ++ int use_lp64; ++ ++ int use_soft_float; ++ int use_single_float; ++ int use_double_float; ++ ++ int use_lsx; ++ int use_lasx; ++ ++ int use_la_local_with_abs; ++ int use_la_global_with_pcrel; ++ int use_la_global_with_abs; ++ } isa; ++#define ase_ilp32 isa.use_ilp32 ++#define ase_lp64 isa.use_lp64 ++ ++#define ase_nf isa.use_soft_float ++#define ase_sf isa.use_single_float ++#define ase_df isa.use_double_float ++ ++#define ase_lsx isa.use_lsx ++#define ase_lasx isa.use_lasx ++ ++#define ase_labs isa.use_la_local_with_abs ++#define ase_gpcr isa.use_la_global_with_pcrel ++#define ase_gabs isa.use_la_global_with_abs ++ ++ } LARCH_opts; ++ ++ extern size_t loongarch_insn_length (insn_t insn); ++ ++#ifdef __cplusplus ++} ++#endif ++ ++#endif /* _LOONGARCH_H_ */ +diff --git gdb-10.2/opcodes/Makefile.am gdb-10.2/opcodes/Makefile.am +index 7318bf0..c9139e5 100644 +--- gdb-10.2/opcodes/Makefile.am ++++ gdb-10.2/opcodes/Makefile.am +@@ -162,6 +162,9 @@ TARGET_LIBOPCODES_CFILES = \ + lm32-ibld.c \ + lm32-opc.c \ + lm32-opinst.c \ ++ loongarch-opc.c \ ++ loongarch-dis.c \ ++ loongarch-coder.c \ + m10200-dis.c \ + m10200-opc.c \ + m10300-dis.c \ +diff --git gdb-10.2/opcodes/Makefile.in gdb-10.2/opcodes/Makefile.in +index ddb9346..19a90fb 100644 +--- gdb-10.2/opcodes/Makefile.in ++++ gdb-10.2/opcodes/Makefile.in +@@ -552,6 +552,9 @@ TARGET_LIBOPCODES_CFILES = \ + lm32-ibld.c \ + lm32-opc.c \ + lm32-opinst.c \ ++ loongarch-opc.c \ ++ loongarch-dis.c \ ++ loongarch-coder.c \ + m10200-dis.c \ + m10200-opc.c \ + m10300-dis.c \ +@@ -966,6 +969,9 @@ distclean-compile: + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-ibld.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-opc.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lm32-opinst.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-coder.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-dis.Plo@am__quote@ ++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/loongarch-opc.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10200-dis.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10200-opc.Plo@am__quote@ + @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/m10300-dis.Plo@am__quote@ +diff --git gdb-10.2/opcodes/configure gdb-10.2/opcodes/configure +index e448c9e..68380ae 100755 +--- gdb-10.2/opcodes/configure ++++ gdb-10.2/opcodes/configure +@@ -12949,6 +12949,7 @@ if test x${all_targets} = xfalse ; then + bfd_z80_arch) ta="$ta z80-dis.lo" ;; + bfd_z8k_arch) ta="$ta z8k-dis.lo" ;; + bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;; ++ bfd_loongarch_arch) ta="$ta loongarch-dis.lo loongarch-opc.lo loongarch-coder.lo" ;; + + "") ;; + *) as_fn_error $? "*** unknown target architecture $arch" "$LINENO" 5 ;; +diff --git gdb-10.2/opcodes/configure.ac gdb-10.2/opcodes/configure.ac +index 00be9c8..434cc2f 100644 +--- gdb-10.2/opcodes/configure.ac ++++ gdb-10.2/opcodes/configure.ac +@@ -340,6 +340,7 @@ if test x${all_targets} = xfalse ; then + bfd_z80_arch) ta="$ta z80-dis.lo" ;; + bfd_z8k_arch) ta="$ta z8k-dis.lo" ;; + bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;; ++ bfd_loongarch_arch) ta="$ta loongarch-dis.lo loongarch-opc.lo loongarch-coder.lo" ;; + + "") ;; + *) AC_MSG_ERROR(*** unknown target architecture $arch) ;; +diff --git gdb-10.2/opcodes/disassemble.c gdb-10.2/opcodes/disassemble.c +index 290dcdd..eec560e 100644 +--- gdb-10.2/opcodes/disassemble.c ++++ gdb-10.2/opcodes/disassemble.c +@@ -49,6 +49,7 @@ + #define ARCH_ip2k + #define ARCH_iq2000 + #define ARCH_lm32 ++#define ARCH_loongarch + #define ARCH_m32c + #define ARCH_m32r + #define ARCH_m68hc11 +@@ -551,6 +552,11 @@ disassembler (enum bfd_architecture a, + case bfd_arch_tilepro: + disassemble = print_insn_tilepro; + break; ++#endif ++#ifdef ARCH_loongarch ++ case bfd_arch_loongarch: ++ disassemble = print_insn_loongarch; ++ break; + #endif + default: + return 0; +@@ -591,6 +597,9 @@ disassembler_usage (FILE *stream ATTRIBUTE_UNUSED) + #ifdef ARCH_wasm32 + print_wasm32_disassembler_options (stream); + #endif ++#ifdef ARCH_loongarch ++ print_loongarch_disassembler_options (stream); ++#endif + + return; + } +diff --git gdb-10.2/opcodes/disassemble.h gdb-10.2/opcodes/disassemble.h +index 89db886..cc529c9 100644 +--- gdb-10.2/opcodes/disassemble.h ++++ gdb-10.2/opcodes/disassemble.h +@@ -100,6 +100,7 @@ extern int print_insn_xtensa (bfd_vma, disassemble_info *); + extern int print_insn_z80 (bfd_vma, disassemble_info *); + extern int print_insn_z8001 (bfd_vma, disassemble_info *); + extern int print_insn_z8002 (bfd_vma, disassemble_info *); ++extern int print_insn_loongarch (bfd_vma, disassemble_info *); + + extern disassembler_ftype csky_get_disassembler (bfd *); + extern disassembler_ftype rl78_get_disassembler (bfd *); +diff --git gdb-10.2/opcodes/loongarch-coder.c gdb-10.2/opcodes/loongarch-coder.c +new file mode 100644 +index 0000000..f5e10b9 +--- /dev/null ++++ gdb-10.2/opcodes/loongarch-coder.c +@@ -0,0 +1,481 @@ ++/* LoongArch opcode support. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of the GNU opcodes library. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3, or (at your option) ++ any later version. ++ ++ It is distributed in the hope that it will be useful, but WITHOUT ++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ++ License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++#include "sysdep.h" ++#include "opcode/loongarch.h" ++ ++int ++is_unsigned (const char *c_str) ++{ ++ if (c_str[0] == '0' && (c_str[1] == 'x' || c_str[1] == 'X')) ++ { ++ c_str += 2; ++ while (('a' <= *c_str && *c_str <= 'f') ++ || ('A' <= *c_str && *c_str <= 'F') ++ || ('0' <= *c_str && *c_str <= '9')) ++ c_str++; ++ } ++ else if (*c_str == '\0') ++ return 0; ++ else ++ while ('0' <= *c_str && *c_str <= '9') ++ c_str++; ++ return *c_str == '\0'; ++} ++ ++int ++is_signed (const char *c_str) ++{ ++ return *c_str == '-' ? is_unsigned (c_str + 1) : is_unsigned (c_str); ++} ++ ++int ++loongarch_get_bit_field_width (const char *bit_field, char **end) ++{ ++ int width = 0; ++ char has_specify = 0, *bit_field_1 = (char *) bit_field; ++ if (bit_field_1 && *bit_field_1 != '\0') ++ while (1) ++ { ++ strtol (bit_field_1, &bit_field_1, 10); ++ ++ if (*bit_field_1 != ':') ++ break; ++ bit_field_1++; ++ ++ width += strtol (bit_field_1, &bit_field_1, 10); ++ has_specify = 1; ++ ++ if (*bit_field_1 != '|') ++ break; ++ bit_field_1++; ++ } ++ if (end) ++ *end = bit_field_1; ++ return has_specify ? width : -1; ++} ++ ++int32_t ++loongarch_decode_imm (const char *bit_field, insn_t insn, int si) ++{ ++ int32_t ret = 0; ++ uint32_t t; ++ int len = 0, width, b_start; ++ char *bit_field_1 = (char *) bit_field; ++ while (1) ++ { ++ b_start = strtol (bit_field_1, &bit_field_1, 10); ++ if (*bit_field_1 != ':') ++ break; ++ width = strtol (bit_field_1 + 1, &bit_field_1, 10); ++ len += width; ++ ++ t = insn; ++ t <<= sizeof (t) * 8 - width - b_start; ++ t >>= sizeof (t) * 8 - width; ++ ret <<= width; ++ ret |= t; ++ ++ if (*bit_field_1 != '|') ++ break; ++ bit_field_1++; ++ } ++ ++ if (*bit_field_1 == '<' && *(++bit_field_1) == '<') ++ { ++ width = atoi (bit_field_1 + 1); ++ ret <<= width; ++ len += width; ++ } ++ else if (*bit_field_1 == '+') ++ ret += atoi (bit_field_1 + 1); ++ ++ /* Extend signed bit. */ ++ if (si) ++ { ++ uint32_t sign = 1u << (len - 1); ++ ret = (ret ^ sign) - sign; ++ } ++ ++ return ret; ++} ++ ++static insn_t ++loongarch_encode_imm (const char *bit_field, int32_t imm) ++{ ++ char *bit_field_1 = (char *) bit_field; ++ char *t = bit_field_1; ++ int width, b_start; ++ insn_t ret = 0; ++ uint32_t i; ++ uint32_t uimm = (uint32_t)imm; ++ ++ width = loongarch_get_bit_field_width (t, &t); ++ if (width == -1) ++ return ret; ++ ++ if (*t == '<' && *(++t) == '<') ++ width += atoi (t + 1); ++ else if (*t == '+') ++ uimm -= atoi (t + 1); ++ ++ uimm = width ? (uimm << (sizeof (uimm) * 8 - width)) : 0; ++ ++ while (1) ++ { ++ b_start = strtol (bit_field_1, &bit_field_1, 10); ++ if (*bit_field_1 != ':') ++ break; ++ width = strtol (bit_field_1 + 1, &bit_field_1, 10); ++ i = uimm; ++ i = width ? (i >> (sizeof (i) * 8 - width)) : 0; ++ i = (b_start == 32) ? 0 : (i << b_start); ++ ret |= i; ++ uimm = (width == 32) ? 0 : (uimm << width); ++ ++ if (*bit_field_1 != '|') ++ break; ++ bit_field_1++; ++ } ++ return ret; ++} ++ ++/* Parse such FORMAT ++ "" ++ "u" ++ "v0:5,r5:5,s10:10<<2" ++ "r0:5,r5:5,r10:5,u15:2+1" ++ "r,r,u0:5+32,u0:5+1" ++*/ ++static int ++loongarch_parse_format (const char *format, char *esc1s, char *esc2s, ++ const char **bit_fields) ++{ ++ size_t arg_num = 0; ++ ++ if (*format == '\0') ++ goto end; ++ ++ while (1) ++ { ++ /* esc1 esc2 ++ for "[a-zA-Z][a-zA-Z]?" */ ++ if (('a' <= *format && *format <= 'z') ++ || ('A' <= *format && *format <= 'Z')) ++ { ++ *esc1s++ = *format++; ++ if (('a' <= *format && *format <= 'z') ++ || ('A' <= *format && *format <= 'Z')) ++ *esc2s++ = *format++; ++ else ++ *esc2s++ = '\0'; ++ } ++ else ++ return -1; ++ ++ arg_num++; ++ if (MAX_ARG_NUM_PLUS_2 - 2 < arg_num) ++ /* Need larger MAX_ARG_NUM_PLUS_2. */ ++ return -1; ++ ++ *bit_fields++ = format; ++ ++ if ('0' <= *format && *format <= '9') ++ { ++ /* For "[0-9]+:[0-9]+(\|[0-9]+:[0-9]+)*". */ ++ while (1) ++ { ++ while ('0' <= *format && *format <= '9') ++ format++; ++ ++ if (*format != ':') ++ return -1; ++ format++; ++ ++ if (!('0' <= *format && *format <= '9')) ++ return -1; ++ while ('0' <= *format && *format <= '9') ++ format++; ++ ++ if (*format != '|') ++ break; ++ format++; ++ } ++ ++ /* For "((\+|<<)[1-9][0-9]*)?". */ ++ do ++ { ++ if (*format == '+') ++ format++; ++ else if (format[0] == '<' && format[1] == '<') ++ format += 2; ++ else ++ break; ++ ++ if (!('1' <= *format && *format <= '9')) ++ return -1; ++ while ('0' <= *format && *format <= '9') ++ format++; ++ } ++ while (0); ++ } ++ ++ if (*format == ',') ++ format++; ++ else if (*format == '\0') ++ break; ++ else ++ return -1; ++ } ++ ++ end: ++ *esc1s = '\0'; ++ return 0; ++} ++ ++size_t ++loongarch_split_args_by_comma (char *args, const char *arg_strs[]) ++{ ++ size_t num = 0; ++ ++ if (*args) ++ arg_strs[num++] = args; ++ for (; *args; args++) ++ if (*args == ',') ++ { ++ if (MAX_ARG_NUM_PLUS_2 - 1 == num) ++ break; ++ else ++ *args = '\0', arg_strs[num++] = args + 1; ++ } ++ arg_strs[num] = NULL; ++ return num; ++} ++ ++char * ++loongarch_cat_splited_strs (const char *arg_strs[]) ++{ ++ char *ret; ++ size_t n, l; ++ ++ for (l = 0, n = 0; arg_strs[n]; n++) ++ l += strlen (arg_strs[n]); ++ ret = malloc (l + n + 1); ++ if (!ret) ++ return ret; ++ ++ ret[0] = '\0'; ++ if (0 < n) ++ strcat (ret, arg_strs[0]); ++ for (l = 1; l < n; l++) ++ strcat (ret, ","), strcat (ret, arg_strs[l]); ++ return ret; ++} ++ ++insn_t ++loongarch_foreach_args (const char *format, const char *arg_strs[], ++ int32_t (*helper) (char esc1, char esc2, ++ const char *bit_field, ++ const char *arg, void *context), ++ void *context) ++{ ++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1]; ++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1]; ++ size_t i; ++ insn_t ret = 0; ++ int ok; ++ ++ ok = loongarch_parse_format (format, esc1s, esc2s, bit_fields) == 0; ++ ++ /* Make sure the num of actual args is equal to the num of escape. */ ++ for (i = 0; esc1s[i] && arg_strs[i]; i++) ++ ; ++ ok = ok && !esc1s[i] && !arg_strs[i]; ++ ++ if (ok && helper) ++ { ++ for (i = 0; arg_strs[i]; i++) ++ ret |= loongarch_encode_imm (bit_fields[i], ++ helper (esc1s[i], esc2s[i], ++ bit_fields[i], arg_strs[i], ++ context)); ++ ret |= helper ('\0', '\0', NULL, NULL, context); ++ } ++ ++ return ret; ++} ++ ++int ++loongarch_check_format (const char *format) ++{ ++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1]; ++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1]; ++ ++ if (!format) ++ return -1; ++ ++ return loongarch_parse_format (format, esc1s, esc2s, bit_fields); ++} ++ ++int ++loongarch_check_macro (const char *format, const char *macro) ++{ ++ int num_of_args; ++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1]; ++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1]; ++ ++ if (!format || !macro ++ || loongarch_parse_format (format, esc1s, esc2s, bit_fields) != 0) ++ return -1; ++ ++ for (num_of_args = 0; esc1s[num_of_args]; num_of_args++) ++ ; ++ ++ for (; macro[0]; macro++) ++ if (macro[0] == '%') ++ { ++ macro++; ++ if ('1' <= macro[0] && macro[0] <= '9') ++ { ++ if (num_of_args < macro[0] - '0') ++ /* Out of args num. */ ++ return -1; ++ } ++ else if (macro[0] == 'f') ++ ; ++ else if (macro[0] == '%') ++ ; ++ else ++ return -1; ++ } ++ return 0; ++} ++ ++static const char * ++I (char esc_ch1 ATTRIBUTE_UNUSED, char esc_ch2 ATTRIBUTE_UNUSED, ++ const char *c_str) ++{ ++ return c_str; ++} ++ ++char * ++loongarch_expand_macro_with_format_map ( ++ const char *format, const char *macro, const char *const arg_strs[], ++ const char *(*map) (char esc1, char esc2, const char *arg), ++ char *(*helper) (const char *const arg_strs[], void *context), void *context, ++ size_t len_str) ++{ ++ char esc1s[MAX_ARG_NUM_PLUS_2 - 1], esc2s[MAX_ARG_NUM_PLUS_2 - 1]; ++ const char *bit_fields[MAX_ARG_NUM_PLUS_2 - 1]; ++ const char *src; ++ char *dest; ++ ++ /* The expanded macro character length does not exceed 1000, and number of ++ label is 6 at most in the expanded macro. The len_str is the length of ++ str. */ ++ char *buffer =(char *) malloc(1024 + 6 * len_str); ++ ++ if (format) ++ loongarch_parse_format (format, esc1s, esc2s, bit_fields); ++ ++ src = macro; ++ dest = buffer; ++ ++ while (*src) ++ if (*src == '%') ++ { ++ src++; ++ if ('1' <= *src && *src <= '9') ++ { ++ size_t i = *src - '1'; ++ const char *t = map (esc1s[i], esc2s[i], arg_strs[i]); ++ while (*t) ++ *dest++ = *t++; ++ } ++ else if (*src == '%') ++ *dest++ = '%'; ++ else if (*src == 'f' && helper) ++ { ++ char *b, *t; ++ t = b = (*helper) (arg_strs, context); ++ if (b) ++ { ++ while (*t) ++ *dest++ = *t++; ++ free (b); ++ } ++ } ++ src++; ++ } ++ else ++ *dest++ = *src++; ++ ++ *dest = '\0'; ++ return buffer; ++} ++ ++char * ++loongarch_expand_macro (const char *macro, const char *const arg_strs[], ++ char *(*helper) (const char *const arg_strs[], ++ void *context), ++ void *context, size_t len_str) ++{ ++ return loongarch_expand_macro_with_format_map (NULL, macro, arg_strs, I, ++ helper, context, len_str); ++} ++ ++size_t ++loongarch_bits_imm_needed (int64_t imm, int si) ++{ ++ size_t ret; ++ if (si) ++ { ++ if (imm < 0) ++ { ++ uint64_t uimm = (uint64_t) imm; ++ uint64_t uimax = UINT64_C (1) << 63; ++ for (ret = 0; (uimm & uimax) != 0; uimm <<= 1, ret++) ++ ; ++ ret = 64 - ret + 1; ++ } ++ else ++ ret = loongarch_bits_imm_needed (imm, 0) + 1; ++ } ++ else ++ { ++ uint64_t t = imm; ++ for (ret = 0; t; t >>= 1, ret++) ++ ; ++ } ++ return ret; ++} ++ ++void ++loongarch_eliminate_adjacent_repeat_char (char *dest, char c) ++{ ++ if (c == '\0') ++ return; ++ char *src = dest; ++ while (*dest) ++ { ++ while (src[0] == c && src[0] == src[1]) ++ src++; ++ *dest++ = *src++; ++ } ++} +diff --git gdb-10.2/opcodes/loongarch-dis.c gdb-10.2/opcodes/loongarch-dis.c +new file mode 100644 +index 0000000..9dcf989 +--- /dev/null ++++ gdb-10.2/opcodes/loongarch-dis.c +@@ -0,0 +1,342 @@ ++/* LoongArch opcode support. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of the GNU opcodes library. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3, or (at your option) ++ any later version. ++ ++ It is distributed in the hope that it will be useful, but WITHOUT ++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ++ License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include "sysdep.h" ++#include "disassemble.h" ++#include "opintl.h" ++#include "opcode/loongarch.h" ++#include "libiberty.h" ++#include <stdlib.h> ++ ++static const struct loongarch_opcode * ++get_loongarch_opcode_by_binfmt (insn_t insn) ++{ ++ const struct loongarch_opcode *it; ++ struct loongarch_ase *ase; ++ size_t i; ++ for (ase = loongarch_ASEs; ase->enabled; ase++) ++ { ++ if (!*ase->enabled || (ase->include && !*ase->include) ++ || (ase->exclude && *ase->exclude)) ++ continue; ++ ++ if (!ase->opc_htab_inited) ++ { ++ for (it = ase->opcodes; it->mask; it++) ++ if (!ase->opc_htab[LARCH_INSN_OPC (it->match)] ++ && it->macro == NULL) ++ ase->opc_htab[LARCH_INSN_OPC (it->match)] = it; ++ for (i = 0; i < 16; i++) ++ if (!ase->opc_htab[i]) ++ ase->opc_htab[i] = it; ++ ase->opc_htab_inited = 1; ++ } ++ ++ it = ase->opc_htab[LARCH_INSN_OPC (insn)]; ++ for (; it->name; it++) ++ if ((insn & it->mask) == it->match && it->mask ++ && !(it->include && !*it->include) ++ && !(it->exclude && *it->exclude)) ++ return it; ++ } ++ return NULL; ++} ++ ++static const char *const *loongarch_r_disname = NULL; ++static const char *const *loongarch_f_disname = NULL; ++static const char *const *loongarch_c_disname = NULL; ++static const char *const *loongarch_cr_disname = NULL; ++static const char *const *loongarch_v_disname = NULL; ++static const char *const *loongarch_x_disname = NULL; ++ ++static void ++set_default_loongarch_dis_options (void) ++{ ++ LARCH_opts.ase_ilp32 = 1; ++ LARCH_opts.ase_lp64 = 1; ++ LARCH_opts.ase_sf = 1; ++ LARCH_opts.ase_df = 1; ++ LARCH_opts.ase_lsx = 1; ++ LARCH_opts.ase_lasx = 1; ++ ++ loongarch_r_disname = loongarch_r_lp64_name; ++ loongarch_f_disname = loongarch_f_lp64_name; ++ loongarch_c_disname = loongarch_c_normal_name; ++ loongarch_cr_disname = loongarch_cr_normal_name; ++ loongarch_v_disname = loongarch_v_normal_name; ++ loongarch_x_disname = loongarch_x_normal_name; ++} ++ ++static int ++parse_loongarch_dis_option (const char *option) ++{ ++ if (strcmp (option, "numeric") == 0) ++ { ++ loongarch_r_disname = loongarch_r_normal_name; ++ loongarch_f_disname = loongarch_f_normal_name; ++ } ++ return -1; ++} ++ ++static int ++parse_loongarch_dis_options (const char *opts_in) ++{ ++ set_default_loongarch_dis_options (); ++ ++ if (opts_in == NULL) ++ return 0; ++ ++ char *opts, *opt, *opt_end; ++ opts = xmalloc (strlen (opts_in) + 1); ++ strcpy (opts, opts_in); ++ ++ for (opt = opt_end = opts; opt_end != NULL; opt = opt_end + 1) ++ { ++ if ((opt_end = strchr (opt, ',')) != NULL) ++ *opt_end = 0; ++ if (parse_loongarch_dis_option (opt) != 0) ++ return -1; ++ } ++ free (opts); ++ return 0; ++} ++ ++static int32_t ++dis_one_arg (char esc1, char esc2, const char *bit_field, ++ const char *arg ATTRIBUTE_UNUSED, void *context) ++{ ++ static int need_comma = 0; ++ struct disassemble_info *info = context; ++ insn_t insn = *(insn_t *) info->private_data; ++ int32_t imm, u_imm; ++ ++ if (esc1) ++ { ++ if (need_comma) ++ info->fprintf_func (info->stream, ", "); ++ need_comma = 1; ++ imm = loongarch_decode_imm (bit_field, insn, 1); ++ u_imm = loongarch_decode_imm (bit_field, insn, 0); ++ } ++ ++ switch (esc1) ++ { ++ case 'r': ++ info->fprintf_func (info->stream, "%s", loongarch_r_disname[u_imm]); ++ break; ++ case 'f': ++ info->fprintf_func (info->stream, "%s", loongarch_f_disname[u_imm]); ++ break; ++ case 'c': ++ switch (esc2) ++ { ++ case 'r': ++ info->fprintf_func (info->stream, "%s", loongarch_cr_disname[u_imm]); ++ break; ++ default: ++ info->fprintf_func (info->stream, "%s", loongarch_c_disname[u_imm]); ++ } ++ break; ++ case 'v': ++ info->fprintf_func (info->stream, "%s", loongarch_v_disname[u_imm]); ++ break; ++ case 'x': ++ info->fprintf_func (info->stream, "%s", loongarch_x_disname[u_imm]); ++ break; ++ case 'u': ++ info->fprintf_func (info->stream, "0x%x", u_imm); ++ break; ++ case 's': ++ if (imm == 0) ++ info->fprintf_func (info->stream, "%d", imm); ++ else ++ info->fprintf_func (info->stream, "%d(0x%x)", imm, u_imm); ++ switch (esc2) ++ { ++ case 'b': ++ info->insn_type = dis_branch; ++ info->target += imm; ++ } ++ break; ++ case '\0': ++ need_comma = 0; ++ } ++ return 0; ++} ++ ++static void ++disassemble_one (insn_t insn, struct disassemble_info *info) ++{ ++ const struct loongarch_opcode *opc = get_loongarch_opcode_by_binfmt (insn); ++ ++#ifdef LOONGARCH_DEBUG ++ char have_space[32] = { 0 }; ++ insn_t t; ++ int i; ++ const char *t_f = opc ? opc->format : NULL; ++ if (t_f) ++ while (*t_f) ++ { ++ while (('a' <= t_f[0] && t_f[0] <= 'z') ++ || ('A' <= t_f[0] && t_f[0] <= 'Z') ++ || t_f[0] == ',') ++ t_f++; ++ while (1) ++ { ++ i = strtol (t_f, &t_f, 10); ++ have_space[i] = 1; ++ t_f++; /* ':' */ ++ i += strtol (t_f, &t_f, 10); ++ have_space[i] = 1; ++ if (t_f[0] == '|') ++ t_f++; ++ else ++ break; ++ } ++ if (t_f[0] == '<') ++ t_f += 2; /* '<' '<' */ ++ strtol (t_f, &t_f, 10); ++ } ++ ++ have_space[28] = 1; ++ have_space[0] = 0; ++ t = ~((insn_t) -1 >> 1); ++ for (i = 31; 0 <= i; i--) ++ { ++ if (t & insn) ++ info->fprintf_func (info->stream, "1"); ++ else ++ info->fprintf_func (info->stream, "0"); ++ if (have_space[i]) ++ info->fprintf_func (info->stream, " "); ++ t = t >> 1; ++ } ++ info->fprintf_func (info->stream, "\t"); ++#endif ++ ++ if (!opc) ++ { ++ info->insn_type = dis_noninsn; ++ info->fprintf_func (info->stream, "0x%08x", insn); ++ return; ++ } ++ ++ info->insn_type = dis_nonbranch; ++ info->fprintf_func (info->stream, "%-12s", opc->name); ++ ++ { ++ char *fake_args = xmalloc (strlen (opc->format) + 1); ++ const char *fake_arg_strs[MAX_ARG_NUM_PLUS_2]; ++ strcpy (fake_args, opc->format); ++ if (0 < loongarch_split_args_by_comma (fake_args, fake_arg_strs)) ++ info->fprintf_func (info->stream, "\t"); ++ info->private_data = &insn; ++ loongarch_foreach_args (opc->format, fake_arg_strs, dis_one_arg, info); ++ free (fake_args); ++ } ++ ++ if (info->insn_type == dis_branch || info->insn_type == dis_condbranch ++ /* Someother if we have extra info to print. */) ++ info->fprintf_func (info->stream, "\t#"); ++ ++ if (info->insn_type == dis_branch || info->insn_type == dis_condbranch) ++ { ++ info->fprintf_func (info->stream, " "); ++ info->print_address_func (info->target, info); ++ } ++} ++ ++int ++print_insn_loongarch (bfd_vma memaddr, struct disassemble_info *info) ++{ ++ insn_t insn; ++ int status; ++ ++ static int not_init_yet = 1; ++ if (not_init_yet) ++ { ++ parse_loongarch_dis_options (info->disassembler_options); ++ not_init_yet = 0; ++ } ++ ++ info->bytes_per_chunk = 4; ++ info->bytes_per_line = 4; ++ info->display_endian = BFD_ENDIAN_LITTLE; ++ info->insn_info_valid = 1; ++ info->target = memaddr; ++ ++ if ((status = info->read_memory_func (memaddr, (bfd_byte *) &insn, ++ sizeof (insn), info)) != 0) ++ { ++ info->memory_error_func (status, memaddr, info); ++ return -1; /* loongarch_insn_length (0); */ ++ } ++ ++ disassemble_one (insn, info); ++ ++ return loongarch_insn_length (insn); ++} ++ ++void ++print_loongarch_disassembler_options (FILE *stream) ++{ ++ fprintf (stream, _("\n\ ++The following LoongArch disassembler options are supported for use\n\ ++with the -M switch (multiple options should be separated by commas):\n")); ++ ++ fprintf (stream, _("\n\ ++ numeric Print numeric register names, rather than ABI names.\n")); ++ fprintf (stream, _("\n")); ++} ++ ++int ++loongarch_parse_dis_options (const char *opts_in) ++{ ++ return parse_loongarch_dis_options (opts_in); ++} ++ ++static void ++my_print_address_func (bfd_vma addr, struct disassemble_info *dinfo) ++{ ++ dinfo->fprintf_func (dinfo->stream, "0x%llx", (long long) addr); ++} ++ ++void ++loongarch_disassemble_one (int64_t pc, insn_t insn, ++ int (*fprintf_func) (void *stream, ++ const char *format, ...), ++ void *stream) ++{ ++ static struct disassemble_info my_disinfo = ++ { ++ .print_address_func = my_print_address_func, ++ }; ++ static int not_init_yet = 1; ++ if (not_init_yet) ++ { ++ loongarch_parse_dis_options (NULL); ++ not_init_yet = 0; ++ } ++ ++ my_disinfo.fprintf_func = fprintf_func; ++ my_disinfo.stream = stream; ++ my_disinfo.target = pc; ++ disassemble_one (insn, &my_disinfo); ++} +diff --git gdb-10.2/opcodes/loongarch-opc.c gdb-10.2/opcodes/loongarch-opc.c +new file mode 100644 +index 0000000..be0de61 +--- /dev/null ++++ gdb-10.2/opcodes/loongarch-opc.c +@@ -0,0 +1,870 @@ ++/* LoongArch opcode support. ++ Copyright (C) 2021-2022 Free Software Foundation, Inc. ++ Contributed by Loongson Ltd. ++ ++ This file is part of the GNU opcodes library. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 3, or (at your option) ++ any later version. ++ ++ It is distributed in the hope that it will be useful, but WITHOUT ++ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ++ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ++ License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; see the file COPYING3. If not, ++ see <http://www.gnu.org/licenses/>. */ ++ ++#include <stddef.h> ++#include "opcode/loongarch.h" ++#include "libiberty.h" ++ ++struct loongarch_ASEs_option LARCH_opts; ++ ++size_t ++loongarch_insn_length (insn_t insn ATTRIBUTE_UNUSED) ++{ ++ return 4; ++} ++ ++const char *const loongarch_r_normal_name[32] = ++{ ++ "$r0", "$r1", "$r2", "$r3", "$r4", "$r5", "$r6", "$r7", ++ "$r8", "$r9", "$r10", "$r11", "$r12", "$r13", "$r14", "$r15", ++ "$r16", "$r17", "$r18", "$r19", "$r20", "$r21", "$r22", "$r23", ++ "$r24", "$r25", "$r26", "$r27", "$r28", "$r29", "$r30", "$r31", ++}; ++ ++const char *const loongarch_r_lp64_name[32] = ++{ ++ "$zero", "$ra", "$tp", "$sp", "$a0", "$a1", "$a2", "$a3", ++ "$a4", "$a5", "$a6", "$a7", "$t0", "$t1", "$t2", "$t3", ++ "$t4", "$t5", "$t6", "$t7", "$t8", "$x", "$fp", "$s0", ++ "$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", "$s8", ++}; ++ ++const char *const loongarch_r_lp64_name1[32] = ++{ ++ "", "", "", "", "$v0", "$v1", "", "", "", "", "", "", "", "", "", "", ++ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ++}; ++ ++const char *const loongarch_f_normal_name[32] = ++{ ++ "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", ++ "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15", ++ "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23", ++ "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31", ++}; ++ ++const char *const loongarch_f_lp64_name[32] = ++{ ++ "$fa0", "$fa1", "$fa2", "$fa3", "$fa4", "$fa5", "$fa6", "$fa7", ++ "$ft0", "$ft1", "$ft2", "$ft3", "$ft4", "$ft5", "$ft6", "$ft7", ++ "$ft8", "$ft9", "$ft10", "$ft11", "$ft12", "$ft13", "$ft14", "$ft15", ++ "$fs0", "$fs1", "$fs2", "$fs3", "$fs4", "$fs5", "$fs6", "$fs7", ++}; ++ ++const char *const loongarch_f_lp64_name1[32] = ++{ ++ "$fv0", "$fv1", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ++ "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ++}; ++ ++const char *const loongarch_c_normal_name[8] = ++{ ++ "$fcc0", "$fcc1", "$fcc2", "$fcc3", "$fcc4", "$fcc5", "$fcc6", "$fcc7", ++}; ++ ++const char *const loongarch_cr_normal_name[4] = ++{ ++ "$scr0", ++ "$scr1", ++ "$scr2", ++ "$scr3", ++}; ++ ++const char *const loongarch_v_normal_name[32] = ++{ ++ "$vr0", "$vr1", "$vr2", "$vr3", "$vr4", "$vr5", "$vr6", "$vr7", ++ "$vr8", "$vr9", "$vr10", "$vr11", "$vr12", "$vr13", "$vr14", "$vr15", ++ "$vr16", "$vr17", "$vr18", "$vr19", "$vr20", "$vr21", "$vr22", "$vr23", ++ "$vr24", "$vr25", "$vr26", "$vr27", "$vr28", "$vr29", "$vr30", "$vr31", ++}; ++ ++const char *const loongarch_x_normal_name[32] = ++{ ++ "$xr0", "$xr1", "$xr2", "$xr3", "$xr4", "$xr5", "$xr6", "$xr7", ++ "$xr8", "$xr9", "$xr10", "$xr11", "$xr12", "$xr13", "$xr14", "$xr15", ++ "$xr16", "$xr17", "$xr18", "$xr19", "$xr20", "$xr21", "$xr22", "$xr23", ++ "$xr24", "$xr25", "$xr26", "$xr27", "$xr28", "$xr29", "$xr30", "$xr31", ++}; ++ ++/* Can not use xx_pa for abs. */ ++ ++/* For LoongArch32 abs. */ ++#define INSN_LA_ABS32 \ ++ "lu12i.w %1,%%abs_hi20(%2);" \ ++ "ori %1,%1,%%abs_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_ABS64 \ ++ "lu12i.w %1,%%abs_hi20(%2);" \ ++ "ori %1,%1,%%abs_lo12(%2);" \ ++ "lu32i.d %1,%%abs64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%abs64_hi12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++ ++#define INSN_LA_PCREL32 \ ++ "pcalau12i %1,%%pc_hi20(%2);" \ ++ "addi.w %1,%1,%%pc_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_PCREL64 \ ++ "pcalau12i %1,%%pc_hi20(%2);" \ ++ "addi.d %1,%1,%%pc_lo12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++#define INSN_LA_PCREL64_LARGE \ ++ "pcalau12i %1,%%pc_hi20(%3);" \ ++ "addi.d %2,$r0,%%pc_lo12(%3);" \ ++ "lu32i.d %2,%%pc64_lo20(%3);" \ ++ "lu52i.d %2,%2,%%pc64_hi12(%3);" \ ++ "add.d %1,%1,%2;", \ ++ &LARCH_opts.ase_lp64, 0 ++ ++#define INSN_LA_GOT32 \ ++ "pcalau12i %1,%%got_pc_hi20(%2);" \ ++ "ld.w %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++/* got32 abs. */ ++#define INSN_LA_GOT32_ABS \ ++ "lu12i.w %1,%%got_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);" \ ++ "ld.w %1,%1,0;", \ ++ &LARCH_opts.ase_gabs, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_GOT64 \ ++ "pcalau12i %1,%%got_pc_hi20(%2);" \ ++ "ld.d %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++/* got64 abs. */ ++#define INSN_LA_GOT64_LARGE_ABS \ ++ "lu12i.w %1,%%got_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);" \ ++ "lu32i.d %1,%%got64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%got64_hi12(%2);" \ ++ "ld.d %1,%1,0", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gpcr ++/* got64 pic. */ ++#define INSN_LA_GOT64_LARGE_PCREL \ ++ "pcalau12i %1,%%got_pc_hi20(%3);" \ ++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \ ++ "lu32i.d %2,%%got64_pc_lo20(%3);" \ ++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\ ++ "ldx.d %1,%1,%2;", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gabs ++ ++/* For LoongArch32/64 cmode=normal. */ ++#define INSN_LA_TLS_LE \ ++ "lu12i.w %1,%%le_hi20(%2);" \ ++ "ori %1,%1,%%le_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, 0 ++ ++/* For LoongArch64 cmode=large. */ ++#define INSN_LA_TLS_LE64_LARGE \ ++ "lu12i.w %1,%%le_hi20(%2);" \ ++ "ori %1,%1,%%le_lo12(%2);" \ ++ "lu32i.d %1,%%le64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%le64_hi12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++ ++#define INSN_LA_TLS_IE32 \ ++ "pcalau12i %1,%%ie_pc_hi20(%2);" \ ++ "ld.w %1,%1,%%ie_pc_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++/* For ie32 abs. */ ++#define INSN_LA_TLS_IE32_ABS \ ++ "lu12i.w %1,%%ie_hi20(%2);" \ ++ "ori %1,%1,%%ie_lo12(%2);" \ ++ "ld.w %1,%1,0", \ ++ &LARCH_opts.ase_gabs, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_TLS_IE64 \ ++ "pcalau12i %1,%%ie_pc_hi20(%2);" \ ++ "ld.d %1,%1,%%ie_pc_lo12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++/* For ie64 pic. */ ++#define INSN_LA_TLS_IE64_LARGE_PCREL \ ++ "pcalau12i %1,%%ie_pc_hi20(%3);" \ ++ "addi.d %2,$r0,%%ie_pc_lo12(%3);" \ ++ "lu32i.d %2,%%ie64_pc_lo20(%3);" \ ++ "lu52i.d %2,%2,%%ie64_pc_hi12(%3);"\ ++ "ldx.d %1,%1,%2;", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gabs ++/* For ie64 abs. */ ++#define INSN_LA_TLS_IE64_LARGE_ABS \ ++ "lu12i.w %1,%%ie_hi20(%2);" \ ++ "ori %1,%1,%%ie_lo12(%2);" \ ++ "lu32i.d %1,%%ie64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%ie64_hi12(%2);" \ ++ "ld.d %1,%1,0", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gpcr ++ ++/* For LoongArch32/64 cmode=normal. */ ++#define INSN_LA_TLS_LD32 \ ++ "pcalau12i %1,%%ld_pc_hi20(%2);" \ ++ "addi.w %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_TLS_LD32_ABS \ ++ "lu12i.w %1,%%ld_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);", \ ++ &LARCH_opts.ase_gabs, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_TLS_LD64 \ ++ "pcalau12i %1,%%ld_pc_hi20(%2);" \ ++ "addi.d %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++#define INSN_LA_TLS_LD64_LARGE_PCREL \ ++ "pcalau12i %1,%%ld_pc_hi20(%3);" \ ++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \ ++ "lu32i.d %2,%%got64_pc_lo20(%3);" \ ++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\ ++ "add.d %1,%1,%2;", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gabs ++#define INSN_LA_TLS_LD64_LARGE_ABS \ ++ "lu12i.w %1,%%ld_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);" \ ++ "lu32i.d %1,%%got64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%got64_hi12(%2);", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gpcr ++ ++#define INSN_LA_TLS_GD32 \ ++ "pcalau12i %1,%%gd_pc_hi20(%2);" \ ++ "addi.w %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_ilp32, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_TLS_GD32_ABS \ ++ "lu12i.w %1,%%gd_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);", \ ++ &LARCH_opts.ase_gabs, \ ++ &LARCH_opts.ase_lp64 ++#define INSN_LA_TLS_GD64 \ ++ "pcalau12i %1,%%gd_pc_hi20(%2);" \ ++ "addi.d %1,%1,%%got_pc_lo12(%2);", \ ++ &LARCH_opts.ase_lp64, 0 ++#define INSN_LA_TLS_GD64_LARGE_PCREL \ ++ "pcalau12i %1,%%gd_pc_hi20(%3);" \ ++ "addi.d %2,$r0,%%got_pc_lo12(%3);" \ ++ "lu32i.d %2,%%got64_pc_lo20(%3);" \ ++ "lu52i.d %2,%2,%%got64_pc_hi12(%3);"\ ++ "add.d %1,%1,%2;", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gabs ++#define INSN_LA_TLS_GD64_LARGE_ABS \ ++ "lu12i.w %1,%%gd_hi20(%2);" \ ++ "ori %1,%1,%%got_lo12(%2);" \ ++ "lu32i.d %1,%%got64_lo20(%2);" \ ++ "lu52i.d %1,%1,%%got64_hi12(%2);", \ ++ &LARCH_opts.ase_lp64, \ ++ &LARCH_opts.ase_gpcr ++ ++ ++static struct loongarch_opcode loongarch_macro_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0, 0, "li.w", "r,sc", "%f", 0, 0, 0 }, ++ { 0, 0, "li.d", "r,sc", "%f", 0, 0, 0 }, ++ ++ { 0, 0, "la", "r,la", "la.global %1,%2", 0, 0, 0 }, ++ { 0, 0, "la.global", "r,la", "la.pcrel %1,%2", &LARCH_opts.ase_gpcr, 0, 0 }, ++ { 0, 0, "la.global", "r,r,la", "la.pcrel %1,%2,%3", &LARCH_opts.ase_gpcr, 0, 0 }, ++ { 0, 0, "la.global", "r,la", "la.abs %1,%2", &LARCH_opts.ase_gabs, 0, 0 }, ++ { 0, 0, "la.global", "r,r,la", "la.abs %1,%3", &LARCH_opts.ase_gabs, 0, 0 }, ++ { 0, 0, "la.global", "r,la", "la.got %1,%2", 0, 0, 0 }, ++ { 0, 0, "la.global", "r,r,la", "la.got %1,%2,%3", &LARCH_opts.ase_lp64, 0, 0 }, ++ ++ { 0, 0, "la.local", "r,la", "la.abs %1,%2", &LARCH_opts.ase_labs, 0, 0 }, ++ { 0, 0, "la.local", "r,r,la", "la.abs %1,%3", &LARCH_opts.ase_labs, 0, 0 }, ++ { 0, 0, "la.local", "r,la", "la.pcrel %1,%2", 0, 0, 0 }, ++ { 0, 0, "la.local", "r,r,la", "la.pcrel %1,%2,%3", &LARCH_opts.ase_lp64, 0, 0 }, ++ ++ { 0, 0, "la.abs", "r,la", INSN_LA_ABS32, 0 }, ++ { 0, 0, "la.abs", "r,la", INSN_LA_ABS64, 0 }, ++ { 0, 0, "la.pcrel", "r,la", INSN_LA_PCREL32, 0 }, ++ { 0, 0, "la.pcrel", "r,la", INSN_LA_PCREL64, 0 }, ++ { 0, 0, "la.pcrel", "r,r,la", INSN_LA_PCREL64_LARGE, 0 }, ++ { 0, 0, "la.got", "r,la", INSN_LA_GOT32, 0 }, ++ { 0, 0, "la.got", "r,la", INSN_LA_GOT32_ABS, 0 }, ++ { 0, 0, "la.got", "r,la", INSN_LA_GOT64, 0 }, ++ { 0, 0, "la.got", "r,la", INSN_LA_GOT64_LARGE_ABS, 0 }, ++ { 0, 0, "la.got", "r,r,la", INSN_LA_GOT64_LARGE_PCREL, 0 }, ++ { 0, 0, "la.tls.le", "r,l", INSN_LA_TLS_LE, 0 }, ++ { 0, 0, "la.tls.le", "r,l", INSN_LA_TLS_LE64_LARGE, 0 }, ++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE32, 0 }, ++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE32_ABS, 0 }, ++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE64, 0 }, ++ { 0, 0, "la.tls.ie", "r,l", INSN_LA_TLS_IE64_LARGE_ABS, 0 }, ++ { 0, 0, "la.tls.ie", "r,r,l", INSN_LA_TLS_IE64_LARGE_PCREL, 0 }, ++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD32, 0 }, ++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD32_ABS, 0 }, ++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD64, 0 }, ++ { 0, 0, "la.tls.ld", "r,l", INSN_LA_TLS_LD64_LARGE_ABS, 0 }, ++ { 0, 0, "la.tls.ld", "r,r,l", INSN_LA_TLS_LD64_LARGE_PCREL, 0 }, ++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD32, 0 }, ++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD32_ABS, 0 }, ++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD64, 0 }, ++ { 0, 0, "la.tls.gd", "r,l", INSN_LA_TLS_GD64_LARGE_ABS, 0 }, ++ { 0, 0, "la.tls.gd", "r,r,l", INSN_LA_TLS_GD64_LARGE_PCREL, 0 }, ++ ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_fix_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x00001000, 0xfffffc00, "clo.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00001400, 0xfffffc00, "clz.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00001800, 0xfffffc00, "cto.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00001c00, 0xfffffc00, "ctz.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00002000, 0xfffffc00, "clo.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00002400, 0xfffffc00, "clz.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00002800, 0xfffffc00, "cto.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00002c00, 0xfffffc00, "ctz.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00003000, 0xfffffc00, "revb.2h", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00003400, 0xfffffc00, "revb.4h", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00003800, 0xfffffc00, "revb.2w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00003c00, 0xfffffc00, "revb.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00004000, 0xfffffc00, "revh.2w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00004400, 0xfffffc00, "revh.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00004800, 0xfffffc00, "bitrev.4b", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00004c00, 0xfffffc00, "bitrev.8b", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00005000, 0xfffffc00, "bitrev.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00005400, 0xfffffc00, "bitrev.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00005800, 0xfffffc00, "ext.w.h", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00005c00, 0xfffffc00, "ext.w.b", "r0:5,r5:5", 0, 0, 0, 0 }, ++ /* or %1,%2,$r0 */ ++ { 0x00150000, 0xfffffc00, "move", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00006000, 0xfffffc00, "rdtimel.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00006400, 0xfffffc00, "rdtimeh.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00006800, 0xfffffc00, "rdtime.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00006c00, 0xfffffc00, "cpucfg", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x00010000, 0xffff801f, "asrtle.d", "r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00018000, 0xffff801f, "asrtgt.d", "r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00040000, 0xfffe0000, "alsl.w", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 }, ++ { 0x00060000, 0xfffe0000, "alsl.wu", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 }, ++ { 0x00080000, 0xfffe0000, "bytepick.w", "r0:5,r5:5,r10:5,u15:2", 0, 0, 0, 0 }, ++ { 0x000c0000, 0xfffc0000, "bytepick.d", "r0:5,r5:5,r10:5,u15:3", 0, 0, 0, 0 }, ++ { 0x00100000, 0xffff8000, "add.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00108000, 0xffff8000, "add.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00110000, 0xffff8000, "sub.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00118000, 0xffff8000, "sub.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00120000, 0xffff8000, "slt", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00128000, 0xffff8000, "sltu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00130000, 0xffff8000, "maskeqz", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00138000, 0xffff8000, "masknez", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00140000, 0xffff8000, "nor", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00148000, 0xffff8000, "and", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00150000, 0xffff8000, "or", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00158000, 0xffff8000, "xor", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00160000, 0xffff8000, "orn", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00168000, 0xffff8000, "andn", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00170000, 0xffff8000, "sll.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00178000, 0xffff8000, "srl.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00180000, 0xffff8000, "sra.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00188000, 0xffff8000, "sll.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00190000, 0xffff8000, "srl.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00198000, 0xffff8000, "sra.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001b0000, 0xffff8000, "rotr.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001b8000, 0xffff8000, "rotr.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001c0000, 0xffff8000, "mul.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001c8000, 0xffff8000, "mulh.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001d0000, 0xffff8000, "mulh.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001d8000, 0xffff8000, "mul.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001e0000, 0xffff8000, "mulh.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001e8000, 0xffff8000, "mulh.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001f0000, 0xffff8000, "mulw.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x001f8000, 0xffff8000, "mulw.d.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00200000, 0xffff8000, "div.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00208000, 0xffff8000, "mod.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00210000, 0xffff8000, "div.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00218000, 0xffff8000, "mod.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00220000, 0xffff8000, "div.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00228000, 0xffff8000, "mod.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00230000, 0xffff8000, "div.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00238000, 0xffff8000, "mod.du", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00240000, 0xffff8000, "crc.w.b.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00248000, 0xffff8000, "crc.w.h.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00250000, 0xffff8000, "crc.w.w.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00258000, 0xffff8000, "crc.w.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00260000, 0xffff8000, "crcc.w.b.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00268000, 0xffff8000, "crcc.w.h.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00270000, 0xffff8000, "crcc.w.w.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x00278000, 0xffff8000, "crcc.w.d.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x002a0000, 0xffff8000, "break", "u0:15", 0, 0, 0, 0 }, ++ { 0x002a8000, 0xffff8000, "dbcl", "u0:15", 0, 0, 0, 0 }, ++ { 0x002b0000, 0xffff8000, "syscall", "u0:15", 0, 0, 0, 0 }, ++ { 0x002c0000, 0xfffe0000, "alsl.d", "r0:5,r5:5,r10:5,u15:2+1", 0, 0, 0, 0 }, ++ { 0x00408000, 0xffff8000, "slli.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 }, ++ { 0x00410000, 0xffff0000, "slli.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 }, ++ { 0x00448000, 0xffff8000, "srli.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 }, ++ { 0x00450000, 0xffff0000, "srli.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 }, ++ { 0x00488000, 0xffff8000, "srai.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 }, ++ { 0x00490000, 0xffff0000, "srai.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 }, ++ { 0x004c8000, 0xffff8000, "rotri.w", "r0:5,r5:5,u10:5", 0, 0, 0, 0 }, ++ { 0x004d0000, 0xffff0000, "rotri.d", "r0:5,r5:5,u10:6", 0, 0, 0, 0 }, ++ { 0x00600000, 0xffe08000, "bstrins.w", "r0:5,r5:5,u16:5,u10:5", 0, 0, 0, 0 }, ++ { 0x00608000, 0xffe08000, "bstrpick.w", "r0:5,r5:5,u16:5,u10:5", 0, 0, 0, 0 }, ++ { 0x00800000, 0xffc00000, "bstrins.d", "r0:5,r5:5,u16:6,u10:6", 0, 0, 0, 0 }, ++ { 0x00c00000, 0xffc00000, "bstrpick.d", "r0:5,r5:5,u16:6,u10:6", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_single_float_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x01008000, 0xffff8000, "fadd.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01028000, 0xffff8000, "fsub.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01048000, 0xffff8000, "fmul.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01068000, 0xffff8000, "fdiv.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01088000, 0xffff8000, "fmax.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010a8000, 0xffff8000, "fmin.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010c8000, 0xffff8000, "fmaxa.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010e8000, 0xffff8000, "fmina.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01108000, 0xffff8000, "fscaleb.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01128000, 0xffff8000, "fcopysign.s", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01140400, 0xfffffc00, "fabs.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01141400, 0xfffffc00, "fneg.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01142400, 0xfffffc00, "flogb.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01143400, 0xfffffc00, "fclass.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01144400, 0xfffffc00, "fsqrt.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01145400, 0xfffffc00, "frecip.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01146400, 0xfffffc00, "frsqrt.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01149400, 0xfffffc00, "fmov.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0114a400, 0xfffffc00, "movgr2fr.w", "f0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0114ac00, 0xfffffc00, "movgr2frh.w", "f0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0114b400, 0xfffffc00, "movfr2gr.s", "r0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0114bc00, 0xfffffc00, "movfrh2gr.s", "r0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0114c000, 0xfffffc00, "movgr2fcsr", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0114c800, 0xfffffc00, "movfcsr2gr", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0114d000, 0xfffffc18, "movfr2cf", "c0:3,f5:5", 0, 0, 0, 0 }, ++ { 0x0114d400, 0xffffff00, "movcf2fr", "f0:5,c5:3", 0, 0, 0, 0 }, ++ { 0x0114d800, 0xfffffc18, "movgr2cf", "c0:3,r5:5", 0, 0, 0, 0 }, ++ { 0x0114dc00, 0xffffff00, "movcf2gr", "r0:5,c5:3", 0, 0, 0, 0 }, ++ { 0x011a0400, 0xfffffc00, "ftintrm.w.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a2400, 0xfffffc00, "ftintrm.l.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a4400, 0xfffffc00, "ftintrp.w.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a6400, 0xfffffc00, "ftintrp.l.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a8400, 0xfffffc00, "ftintrz.w.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011aa400, 0xfffffc00, "ftintrz.l.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011ac400, 0xfffffc00, "ftintrne.w.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011ae400, 0xfffffc00, "ftintrne.l.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011b0400, 0xfffffc00, "ftint.w.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011b2400, 0xfffffc00, "ftint.l.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011d1000, 0xfffffc00, "ffint.s.w", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011d1800, 0xfffffc00, "ffint.s.l", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011e4400, 0xfffffc00, "frint.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++static struct loongarch_opcode loongarch_double_float_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x01010000, 0xffff8000, "fadd.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01030000, 0xffff8000, "fsub.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01050000, 0xffff8000, "fmul.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01070000, 0xffff8000, "fdiv.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01090000, 0xffff8000, "fmax.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010b0000, 0xffff8000, "fmin.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010d0000, 0xffff8000, "fmaxa.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x010f0000, 0xffff8000, "fmina.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01110000, 0xffff8000, "fscaleb.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01130000, 0xffff8000, "fcopysign.d", "f0:5,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x01140800, 0xfffffc00, "fabs.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01141800, 0xfffffc00, "fneg.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01142800, 0xfffffc00, "flogb.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01143800, 0xfffffc00, "fclass.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01144800, 0xfffffc00, "fsqrt.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01145800, 0xfffffc00, "frecip.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01146800, 0xfffffc00, "frsqrt.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01149800, 0xfffffc00, "fmov.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0114a800, 0xfffffc00, "movgr2fr.d", "f0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0114b800, 0xfffffc00, "movfr2gr.d", "r0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01191800, 0xfffffc00, "fcvt.s.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x01192400, 0xfffffc00, "fcvt.d.s", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a0800, 0xfffffc00, "ftintrm.w.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a2800, 0xfffffc00, "ftintrm.l.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a4800, 0xfffffc00, "ftintrp.w.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a6800, 0xfffffc00, "ftintrp.l.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011a8800, 0xfffffc00, "ftintrz.w.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011aa800, 0xfffffc00, "ftintrz.l.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011ac800, 0xfffffc00, "ftintrne.w.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011ae800, 0xfffffc00, "ftintrne.l.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011b0800, 0xfffffc00, "ftint.w.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011b2800, 0xfffffc00, "ftint.l.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011d2000, 0xfffffc00, "ffint.d.w", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011d2800, 0xfffffc00, "ffint.d.l", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0x011e4800, 0xfffffc00, "frint.d", "f0:5,f5:5", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_imm_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x02000000, 0xffc00000, "slti", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x02400000, 0xffc00000, "sltui", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x02800000, 0xffc00000, "addi.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x02c00000, 0xffc00000, "addi.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x03000000, 0xffc00000, "lu52i.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "nop", "", "andi $r0,$r0,0", 0, 0, 0 }, ++ { 0x03400000, 0xffc00000, "andi", "r0:5,r5:5,u10:12", 0, 0, 0, 0 }, ++ { 0x03800000, 0xffc00000, "ori", "r0:5,r5:5,u10:12", 0, 0, 0, 0 }, ++ { 0x03c00000, 0xffc00000, "xori", "r0:5,r5:5,u10:12", 0, 0, 0, 0 }, ++ { 0x10000000, 0xfc000000, "addu16i.d", "r0:5,r5:5,s10:16", 0, 0, 0, 0 }, ++ { 0x14000000, 0xfe000000, "lu12i.w", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0x16000000, 0xfe000000, "lu32i.d", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0x18000000, 0xfe000000, "pcaddi", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0x1a000000, 0xfe000000, "pcalau12i", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0x1c000000, 0xfe000000, "pcaddu12i", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0x1e000000, 0xfe000000, "pcaddu18i", "r0:5,s5:20", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_privilege_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x04000000, 0xff0003e0, "csrrd", "r0:5,u10:14", 0, 0, 0, 0 }, ++ { 0x04000020, 0xff0003e0, "csrwr", "r0:5,u10:14", 0, 0, 0, 0 }, ++ { 0x04000000, 0xff000000, "csrxchg", "r0:5,r5:5,u10:14", 0, 0, 0, 0 }, ++ { 0x06000000, 0xffc00000, "cacop", "u0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x06400000, 0xfffc0000, "lddir", "r0:5,r5:5,u10:8", 0, 0, 0, 0 }, ++ { 0x06440000, 0xfffc001f, "ldpte", "r5:5,u10:8", 0, 0, 0, 0 }, ++ { 0x06480000, 0xfffffc00, "iocsrrd.b", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06480400, 0xfffffc00, "iocsrrd.h", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06480800, 0xfffffc00, "iocsrrd.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06480c00, 0xfffffc00, "iocsrrd.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06481000, 0xfffffc00, "iocsrwr.b", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06481400, 0xfffffc00, "iocsrwr.h", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06481800, 0xfffffc00, "iocsrwr.w", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06481c00, 0xfffffc00, "iocsrwr.d", "r0:5,r5:5", 0, 0, 0, 0 }, ++ { 0x06482000, 0xffffffff, "tlbclr", "", 0, 0, 0, 0 }, ++ { 0x06482400, 0xffffffff, "tlbflush", "", 0, 0, 0, 0 }, ++ { 0x06482800, 0xffffffff, "tlbsrch", "", 0, 0, 0, 0 }, ++ { 0x06482c00, 0xffffffff, "tlbrd", "", 0, 0, 0, 0 }, ++ { 0x06483000, 0xffffffff, "tlbwr", "", 0, 0, 0, 0 }, ++ { 0x06483400, 0xffffffff, "tlbfill", "", 0, 0, 0, 0 }, ++ { 0x06483800, 0xffffffff, "ertn", "", 0, 0, 0, 0 }, ++ { 0x06488000, 0xffff8000, "idle", "u0:15", 0, 0, 0, 0 }, ++ { 0x06498000, 0xffff8000, "invtlb", "u0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_4opt_single_float_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x08100000, 0xfff00000, "fmadd.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08500000, 0xfff00000, "fmsub.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08900000, 0xfff00000, "fnmadd.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08d00000, 0xfff00000, "fnmsub.s", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x0c100000, 0xffff8018, "fcmp.caf.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c108000, 0xffff8018, "fcmp.saf.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c110000, 0xffff8018, "fcmp.clt.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c118000, 0xffff8018, "fcmp.slt.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c118000, 0xffff8018, "fcmp.sgt.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c120000, 0xffff8018, "fcmp.ceq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c128000, 0xffff8018, "fcmp.seq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c130000, 0xffff8018, "fcmp.cle.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c138000, 0xffff8018, "fcmp.sle.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c138000, 0xffff8018, "fcmp.sge.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c140000, 0xffff8018, "fcmp.cun.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c148000, 0xffff8018, "fcmp.sun.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c150000, 0xffff8018, "fcmp.cult.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c150000, 0xffff8018, "fcmp.cugt.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c158000, 0xffff8018, "fcmp.sult.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c160000, 0xffff8018, "fcmp.cueq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c168000, 0xffff8018, "fcmp.sueq.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c170000, 0xffff8018, "fcmp.cule.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c170000, 0xffff8018, "fcmp.cuge.s", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c178000, 0xffff8018, "fcmp.sule.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c180000, 0xffff8018, "fcmp.cne.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c188000, 0xffff8018, "fcmp.sne.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c1a0000, 0xffff8018, "fcmp.cor.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c1a8000, 0xffff8018, "fcmp.sor.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c1c0000, 0xffff8018, "fcmp.cune.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c1c8000, 0xffff8018, "fcmp.sune.s", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0d000000, 0xfffc0000, "fsel", "f0:5,f5:5,f10:5,c15:3", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_4opt_double_float_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x08200000, 0xfff00000, "fmadd.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08600000, 0xfff00000, "fmsub.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08a00000, 0xfff00000, "fnmadd.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x08e00000, 0xfff00000, "fnmsub.d", "f0:5,f5:5,f10:5,f15:5", 0, 0, 0, 0 }, ++ { 0x0c200000, 0xffff8018, "fcmp.caf.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c208000, 0xffff8018, "fcmp.saf.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c210000, 0xffff8018, "fcmp.clt.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c218000, 0xffff8018, "fcmp.slt.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c218000, 0xffff8018, "fcmp.sgt.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c220000, 0xffff8018, "fcmp.ceq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c228000, 0xffff8018, "fcmp.seq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c230000, 0xffff8018, "fcmp.cle.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c238000, 0xffff8018, "fcmp.sle.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c238000, 0xffff8018, "fcmp.sge.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c240000, 0xffff8018, "fcmp.cun.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c248000, 0xffff8018, "fcmp.sun.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c250000, 0xffff8018, "fcmp.cult.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c250000, 0xffff8018, "fcmp.cugt.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c258000, 0xffff8018, "fcmp.sult.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c260000, 0xffff8018, "fcmp.cueq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c268000, 0xffff8018, "fcmp.sueq.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c270000, 0xffff8018, "fcmp.cule.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c270000, 0xffff8018, "fcmp.cuge.d", "c0:3,f10:5,f5:5", 0, 0, 0, 0 }, ++ { 0x0c278000, 0xffff8018, "fcmp.sule.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c280000, 0xffff8018, "fcmp.cne.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c288000, 0xffff8018, "fcmp.sne.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c2a0000, 0xffff8018, "fcmp.cor.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c2a8000, 0xffff8018, "fcmp.sor.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c2c0000, 0xffff8018, "fcmp.cune.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0x0c2c8000, 0xffff8018, "fcmp.sune.d", "c0:3,f5:5,f10:5", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_load_store_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x20000000, 0xff000000, "ll.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x21000000, 0xff000000, "sc.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x22000000, 0xff000000, "ll.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x23000000, 0xff000000, "sc.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x24000000, 0xff000000, "ldptr.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x25000000, 0xff000000, "stptr.w", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x26000000, 0xff000000, "ldptr.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x27000000, 0xff000000, "stptr.d", "r0:5,r5:5,s10:14<<2", 0, 0, 0, 0 }, ++ { 0x28000000, 0xffc00000, "ld.b", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x28400000, 0xffc00000, "ld.h", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x28800000, 0xffc00000, "ld.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x28c00000, 0xffc00000, "ld.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x29000000, 0xffc00000, "st.b", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x29400000, 0xffc00000, "st.h", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x29800000, 0xffc00000, "st.w", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x29c00000, 0xffc00000, "st.d", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2a000000, 0xffc00000, "ld.bu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2a400000, 0xffc00000, "ld.hu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2a800000, 0xffc00000, "ld.wu", "r0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2ac00000, 0xffc00000, "preld", "u0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x38000000, 0xffff8000, "ldx.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38040000, 0xffff8000, "ldx.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38080000, 0xffff8000, "ldx.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x380c0000, 0xffff8000, "ldx.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38100000, 0xffff8000, "stx.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38140000, 0xffff8000, "stx.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38180000, 0xffff8000, "stx.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x381c0000, 0xffff8000, "stx.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38200000, 0xffff8000, "ldx.bu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38240000, 0xffff8000, "ldx.hu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38280000, 0xffff8000, "ldx.wu", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x382c0000, 0xffff8000, "preldx", "u0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amswap.w", "r,r,r,u0:0", "amswap.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38600000, 0xffff8000, "amswap.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amswap.d", "r,r,r,u0:0", "amswap.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38608000, 0xffff8000, "amswap.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amadd.w", "r,r,r,u0:0", "amadd.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38610000, 0xffff8000, "amadd.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amadd.d", "r,r,r,u0:0", "amadd.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38618000, 0xffff8000, "amadd.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amand.w", "r,r,r,u0:0", "amand.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38620000, 0xffff8000, "amand.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amand.d", "r,r,r,u0:0", "amand.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38628000, 0xffff8000, "amand.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amor.w", "r,r,r,u0:0", "amor.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38630000, 0xffff8000, "amor.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amor.d", "r,r,r,u0:0", "amor.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38638000, 0xffff8000, "amor.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amxor.w", "r,r,r,u0:0", "amxor.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38640000, 0xffff8000, "amxor.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amxor.d", "r,r,r,u0:0", "amxor.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38648000, 0xffff8000, "amxor.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax.w", "r,r,r,u0:0", "ammax.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38650000, 0xffff8000, "ammax.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax.d", "r,r,r,u0:0", "ammax.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38658000, 0xffff8000, "ammax.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin.w", "r,r,r,u0:0", "ammin.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38660000, 0xffff8000, "ammin.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin.d", "r,r,r,u0:0", "ammin.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38668000, 0xffff8000, "ammin.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax.wu", "r,r,r,u0:0", "ammax.wu %1,%2,%3", 0, 0, 0 }, ++ { 0x38670000, 0xffff8000, "ammax.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax.du", "r,r,r,u0:0", "ammax.du %1,%2,%3", 0, 0, 0 }, ++ { 0x38678000, 0xffff8000, "ammax.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin.wu", "r,r,r,u0:0", "ammin.wu %1,%2,%3", 0, 0, 0 }, ++ { 0x38680000, 0xffff8000, "ammin.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin.du", "r,r,r,u0:0", "ammin.du %1,%2,%3", 0, 0, 0 }, ++ { 0x38688000, 0xffff8000, "ammin.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amswap_db.w", "r,r,r,u0:0", "amswap_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x38690000, 0xffff8000, "amswap_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amswap_db.d", "r,r,r,u0:0", "amswap_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x38698000, 0xffff8000, "amswap_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amadd_db.w", "r,r,r,u0:0", "amadd_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386a0000, 0xffff8000, "amadd_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amadd_db.d", "r,r,r,u0:0", "amadd_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386a8000, 0xffff8000, "amadd_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amand_db.w", "r,r,r,u0:0", "amand_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386b0000, 0xffff8000, "amand_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amand_db.d", "r,r,r,u0:0", "amand_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386b8000, 0xffff8000, "amand_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amor_db.w", "r,r,r,u0:0", "amor_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386c0000, 0xffff8000, "amor_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amor_db.d", "r,r,r,u0:0", "amor_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386c8000, 0xffff8000, "amor_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amxor_db.w", "r,r,r,u0:0", "amxor_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386d0000, 0xffff8000, "amxor_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "amxor_db.d", "r,r,r,u0:0", "amxor_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386d8000, 0xffff8000, "amxor_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax_db.w", "r,r,r,u0:0", "ammax_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386e0000, 0xffff8000, "ammax_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax_db.d", "r,r,r,u0:0", "ammax_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386e8000, 0xffff8000, "ammax_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin_db.w", "r,r,r,u0:0", "ammin_db.w %1,%2,%3", 0, 0, 0 }, ++ { 0x386f0000, 0xffff8000, "ammin_db.w", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin_db.d", "r,r,r,u0:0", "ammin_db.d %1,%2,%3", 0, 0, 0 }, ++ { 0x386f8000, 0xffff8000, "ammin_db.d", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax_db.wu", "r,r,r,u0:0", "ammax_db.wu %1,%2,%3", 0, 0, 0 }, ++ { 0x38700000, 0xffff8000, "ammax_db.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammax_db.du", "r,r,r,u0:0", "ammax_db.du %1,%2,%3", 0, 0, 0 }, ++ { 0x38708000, 0xffff8000, "ammax_db.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin_db.wu", "r,r,r,u0:0", "ammin_db.wu %1,%2,%3", 0, 0, 0 }, ++ { 0x38710000, 0xffff8000, "ammin_db.wu", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ammin_db.du", "r,r,r,u0:0", "ammin_db.du %1,%2,%3", 0, 0, 0 }, ++ { 0x38718000, 0xffff8000, "ammin_db.du", "r0:5,r10:5,r5:5", 0, 0, 0, 0 }, ++ { 0x38720000, 0xffff8000, "dbar", "u0:15", 0, 0, 0, 0 }, ++ { 0x38728000, 0xffff8000, "ibar", "u0:15", 0, 0, 0, 0 }, ++ { 0x38780000, 0xffff8000, "ldgt.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38788000, 0xffff8000, "ldgt.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38790000, 0xffff8000, "ldgt.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x38798000, 0xffff8000, "ldgt.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387a0000, 0xffff8000, "ldle.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387a8000, 0xffff8000, "ldle.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387b0000, 0xffff8000, "ldle.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387b8000, 0xffff8000, "ldle.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387c0000, 0xffff8000, "stgt.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387c8000, 0xffff8000, "stgt.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387d0000, 0xffff8000, "stgt.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387d8000, 0xffff8000, "stgt.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387e0000, 0xffff8000, "stle.b", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387e8000, 0xffff8000, "stle.h", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387f0000, 0xffff8000, "stle.w", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0x387f8000, 0xffff8000, "stle.d", "r0:5,r5:5,r10:5", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_single_float_load_store_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x2b000000, 0xffc00000, "fld.s", "f0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2b400000, 0xffc00000, "fst.s", "f0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x38300000, 0xffff8000, "fldx.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38380000, 0xffff8000, "fstx.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38740000, 0xffff8000, "fldgt.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38750000, 0xffff8000, "fldle.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38760000, 0xffff8000, "fstgt.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38770000, 0xffff8000, "fstle.s", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_double_float_load_store_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x2b800000, 0xffc00000, "fld.d", "f0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x2bc00000, 0xffc00000, "fst.d", "f0:5,r5:5,s10:12", 0, 0, 0, 0 }, ++ { 0x38340000, 0xffff8000, "fldx.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x383c0000, 0xffff8000, "fstx.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38748000, 0xffff8000, "fldgt.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38758000, 0xffff8000, "fldle.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38768000, 0xffff8000, "fstgt.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0x38778000, 0xffff8000, "fstle.d", "f0:5,r5:5,r10:5", 0, &LARCH_opts.ase_lp64, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_float_jmp_opcodes[] = ++{ ++ { 0x0, 0x0, "bceqz", "c,la", "bceqz %1,%%b21(%2)", 0, 0, 0 }, ++ { 0x48000000, 0xfc000300, "bceqz", "c5:3,sb0:5|10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bcnez", "c,la", "bcnez %1,%%b21(%2)", 0, 0, 0 }, ++ { 0x48000100, 0xfc000300, "bcnez", "c5:3,sb0:5|10:16<<2", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++static struct loongarch_opcode loongarch_jmp_opcodes[] = ++{ ++ /* match, mask, name, format, macro, include, exclude, pinfo. */ ++ { 0x0, 0x0, "bltz", "r,la", "bltz %1,%%b16(%2)", 0, 0, 0 }, ++ { 0x60000000, 0xfc00001f, "bltz", "r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bgtz", "r,la", "bgtz %1,%%b16(%2)", 0, 0, 0 }, ++ { 0x60000000, 0xfc0003e0, "bgtz", "r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bgez", "r,la", "bgez %1,%%b16(%2)", 0, 0, 0 }, ++ { 0x64000000, 0xfc00001f, "bgez", "r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "blez", "r,la", "blez %1,%%b16(%2)", 0, 0, 0 }, ++ { 0x64000000, 0xfc0003e0, "blez", "r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "beqz", "r,la", "beqz %1,%%b21(%2)", 0, 0, 0 }, ++ { 0x40000000, 0xfc000000, "beqz", "r5:5,sb0:5|10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bnez", "r,la", "bnez %1,%%b21(%2)", 0, 0, 0 }, ++ { 0x44000000, 0xfc000000, "bnez", "r5:5,sb0:5|10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "jr", "r", "jirl $r0,%1,0", 0, 0, 0 }, ++ { 0x50000000, 0xfc000000, "b", "sb0:10|10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "b", "la", "b %%b26(%1)", 0, 0, 0 }, ++ { 0x4c000000, 0xfc000000, "jirl", "r0:5,r5:5,s10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bl", "la", "bl %%b26(%1)", 0, 0, 0 }, ++ { 0x54000000, 0xfc000000, "bl", "sb0:10|10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "beq", "r,r,la", "beq %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x58000000, 0xfc000000, "beq", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bne", "r,r,la", "bne %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x5c000000, 0xfc000000, "bne", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "blt", "r,r,la", "blt %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x60000000, 0xfc000000, "blt", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bgt", "r,r,la", "bgt %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x60000000, 0xfc000000, "bgt", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bge", "r,r,la", "bge %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x64000000, 0xfc000000, "bge", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "ble", "r,r,la", "ble %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x64000000, 0xfc000000, "ble", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bltu", "r,r,la", "bltu %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x68000000, 0xfc000000, "bltu", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bgtu", "r,r,la", "bgtu %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x68000000, 0xfc000000, "bgtu", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bgeu", "r,r,la", "bgeu %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x6c000000, 0xfc000000, "bgeu", "r5:5,r0:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0x0, 0x0, "bleu", "r,r,la", "bleu %1,%2,%%b16(%3)", 0, 0, 0 }, ++ { 0x6c000000, 0xfc000000, "bleu", "r0:5,r5:5,sb10:16<<2", 0, 0, 0, 0 }, ++ { 0 } /* Terminate the list. */ ++}; ++ ++struct loongarch_ase loongarch_ASEs[] = ++{ ++ { &LARCH_opts.ase_ilp32, loongarch_macro_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_ilp32, loongarch_imm_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_ilp32, loongarch_privilege_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_ilp32, loongarch_load_store_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_ilp32, loongarch_fix_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_ilp32, loongarch_jmp_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_sf, loongarch_float_jmp_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_sf, loongarch_single_float_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_df, loongarch_double_float_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_sf, loongarch_4opt_single_float_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_df, loongarch_4opt_double_float_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_sf, loongarch_single_float_load_store_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { &LARCH_opts.ase_df, loongarch_double_float_load_store_opcodes, 0, 0, { 0 }, 0, 0 }, ++ { 0 }, ++}; +diff --git gdb-10.2/opcodes/po/POTFILES.in gdb-10.2/opcodes/po/POTFILES.in +index 7572204..84625ac 100644 +--- gdb-10.2/opcodes/po/POTFILES.in ++++ gdb-10.2/opcodes/po/POTFILES.in +@@ -108,6 +108,9 @@ lm32-ibld.c + lm32-opc.c + lm32-opc.h + lm32-opinst.c ++loongarch-coder.c ++loongarch-dis.c ++loongarch-opc.c + m10200-dis.c + m10200-opc.c + m10300-dis.c +-- +2.33.0 + diff --git a/help.c b/help.c index cc7ab20..c36a6f1 100644 --- a/help.c +++ b/help.c @@ -336,7 +336,7 @@ char *program_usage_info[] = { " and verification. The default count is 32768.", "", " --kaslr offset | auto", - " If x86, x86_64 or s390x kernel was configured with CONFIG_RANDOMIZE_BASE,", + " If x86, x86_64 loongarch64 or s390x kernel was configured with CONFIG_RANDOMIZE_BASE,", " the offset value is equal to the difference between the symbol values ", " compiled into the vmlinux file and their relocated KASLR value. If", " set to auto, the KASLR offset value will be automatically calculated.", diff --git a/lkcd_vmdump_v1.h b/lkcd_vmdump_v1.h index 98ee094..3ffb219 100644 --- a/lkcd_vmdump_v1.h +++ b/lkcd_vmdump_v1.h @@ -114,7 +114,7 @@ typedef struct _dump_header_s { struct new_utsname dh_utsname; /* the dump registers */ -#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) +#if !defined(IA64) && !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) && !defined(LOONGARCH64) struct pt_regs dh_regs; #endif diff --git a/lkcd_vmdump_v2_v3.h b/lkcd_vmdump_v2_v3.h index ef3067f..2113c59 100644 --- a/lkcd_vmdump_v2_v3.h +++ b/lkcd_vmdump_v2_v3.h @@ -37,7 +37,7 @@ #if defined(ARM) || defined(X86) || defined(PPC) || defined(S390) || \ defined(S390X) || defined(ARM64) || defined(MIPS) || \ - defined(MIPS64) || defined(SPARC64) || defined(RISCV64) + defined(MIPS64) || defined(SPARC64) || defined(RISCV64) || defined(LOONGARCH64) /* * Kernel header file for Linux crash dumps. @@ -84,7 +84,7 @@ typedef struct _dump_header_asm_s { uint32_t dha_eip; /* the dump registers */ -#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) +#if !defined(S390) && !defined(S390X) && !defined(ARM64) && !defined(RISCV64) && !defined(LOONGARCH64) struct pt_regs dha_regs; #endif diff --git a/loongarch64.c b/loongarch64.c new file mode 100644 index 0000000..09df05a --- /dev/null +++ b/loongarch64.c @@ -0,0 +1,1347 @@ +/* loongarch64.c - core analysis suite + * + * Copyright (C) 2021 Loongson Technology Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifdef LOONGARCH64 + +#include <elf.h> +#include "defs.h" + +static int loongarch64_pgd_vtop(ulong *pgd, ulong vaddr, + physaddr_t *paddr, int verbose); +static int loongarch64_uvtop(struct task_context *tc, ulong vaddr, + physaddr_t *paddr, int verbose); +static int loongarch64_kvtop(struct task_context *tc, ulong kvaddr, + physaddr_t *paddr, int verbose); +static int loongarch64_translate_pte(ulong pte, void *physaddr, + ulonglong pte64); + +static void loongarch64_cmd_mach(void); +static void loongarch64_display_machine_stats(void); + +static void loongarch64_back_trace_cmd(struct bt_info *bt); +static void loongarch64_analyze_function(ulong start, ulong offset, + struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous); +static void loongarch64_dump_backtrace_entry(struct bt_info *bt, + struct syment *sym, struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous, int level); +static void loongarch64_dump_exception_stack(struct bt_info *bt, char *pt_regs); +static int loongarch64_is_exception_entry(struct syment *sym); +static void loongarch64_display_full_frame(struct bt_info *bt, + struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous); +static void loongarch64_stackframe_init(void); +static void loongarch64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp); +static int loongarch64_get_dumpfile_stack_frame(struct bt_info *bt, + ulong *nip, ulong *ksp); +static int loongarch64_get_frame(struct bt_info *bt, ulong *pcp, ulong *spp); +static int loongarch64_init_active_task_regs(void); +static int loongarch64_get_crash_notes(void); +static int loongarch64_get_elf_notes(void); + +/* + * 3 Levels paging PAGE_SIZE=16KB + * PGD | PMD | PTE | OFFSET | + * 11 | 11 | 11 | 14 | + */ +/* From arch/loongarch/include/asm/pgtable{,-64}.h */ +typedef struct { ulong pgd; } pgd_t; +typedef struct { ulong pmd; } pmd_t; +typedef struct { ulong pte; } pte_t; + +#define TASK_SIZE64 (1UL << 40) + +#define PMD_ORDER 0 +#define PTE_ORDER 0 + +#define PMD_SHIFT (PAGESHIFT() + (PAGESHIFT() + PTE_ORDER - 3)) +#define PMD_SIZE (1UL << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE - 1)) + +#define PGDIR_SHIFT (PMD_SHIFT + (PAGESHIFT() + PMD_ORDER - 3)) +#define PGDIR_SIZE (1UL << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE - 1)) + +#define PTRS_PER_PTE (1UL << (PAGESHIFT() - 3)) +#define PTRS_PER_PMD PTRS_PER_PTE +#define PTRS_PER_PGD PTRS_PER_PTE +#define USER_PTRS_PER_PGD ((TASK_SIZE64 / PGDIR_SIZE)?(TASK_SIZE64 / PGDIR_SIZE) : 1) + +#define pte_index(addr) (((addr) >> PAGESHIFT()) & (PTRS_PER_PTE - 1)) +#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)) +#define pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) + +#define LOONGARCH64_CPU_RIXI (1UL << 23) /* CPU has TLB Read/eXec Inhibit */ + +#define LOONGARCH64_EF_R0 0 +#define LOONGARCH64_EF_RA 1 +#define LOONGARCH64_EF_SP 3 +#define LOONGARCH64_EF_FP 22 +#define LOONGARCH64_EF_CSR_EPC 32 +#define LOONGARCH64_EF_CSR_BADVADDR 33 +#define LOONGARCH64_EF_CSR_CRMD 34 +#define LOONGARCH64_EF_CSR_PRMD 35 +#define LOONGARCH64_EF_CSR_EUEN 36 +#define LOONGARCH64_EF_CSR_ECFG 37 +#define LOONGARCH64_EF_CSR_ESTAT 38 + +static struct machine_specific loongarch64_machine_specific = { 0 }; + +/* + * Holds registers during the crash. + */ +static struct loongarch64_pt_regs *panic_task_regs; + +/* + * Check and print the flags on the page + */ +static void +check_page_flags(ulong pte) +{ +#define CHECK_PAGE_FLAG(flag) \ + if ((_PAGE_##flag) && (pte & _PAGE_##flag)) \ + fprintf(fp, "%s" #flag, others++ ? "|" : "") + + int others = 0; + fprintf(fp, "("); + + if (pte) { + CHECK_PAGE_FLAG(VALID); + CHECK_PAGE_FLAG(DIRTY); + CHECK_PAGE_FLAG(PLV); + + /* Determine whether it is a huge page format */ + if (pte & _PAGE_HGLOBAL) { + CHECK_PAGE_FLAG(HUGE); + CHECK_PAGE_FLAG(HGLOBAL); + } else { + CHECK_PAGE_FLAG(GLOBAL); + } + + CHECK_PAGE_FLAG(PRESENT); + CHECK_PAGE_FLAG(WRITE); + CHECK_PAGE_FLAG(PROTNONE); + CHECK_PAGE_FLAG(SPECIAL); + CHECK_PAGE_FLAG(NO_READ); + CHECK_PAGE_FLAG(NO_EXEC); + CHECK_PAGE_FLAG(RPLV); + } else { + fprintf(fp, "no mapping"); + } + + fprintf(fp, ")\n"); +} + +/* + * Translate a PTE, returning TRUE if the page is present. + * If a physaddr pointer is passed in, don't print anything. + */ +static int +loongarch64_translate_pte(ulong pte, void *physaddr, ulonglong unused) +{ + char ptebuf[BUFSIZE]; + char physbuf[BUFSIZE]; + char buf1[BUFSIZE]; + char buf2[BUFSIZE]; + char buf3[BUFSIZE]; + char *arglist[MAXARGS]; + int page_present; + int c, len1, len2, len3; + ulong paddr; + + paddr = PTOB(pte >> _PFN_SHIFT); + page_present = !!(pte & _PAGE_PRESENT); + + if (physaddr) { + *(ulong *)physaddr = paddr; + return page_present; + } + + sprintf(ptebuf, "%lx", pte); + len1 = MAX(strlen(ptebuf), strlen("PTE")); + fprintf(fp, "%s ", mkstring(buf1, len1, CENTER | LJUST, "PTE")); + + if (!page_present) { + swap_location(pte, buf1); + if ((c = parse_line(buf1, arglist)) != 3) + error(FATAL, "cannot determine swap location\n"); + + len2 = MAX(strlen(arglist[0]), strlen("SWAP")); + len3 = MAX(strlen(arglist[2]), strlen("OFFSET")); + + fprintf(fp, "%s %s\n", + mkstring(buf2, len2, CENTER|LJUST, "SWAP"), + mkstring(buf3, len3, CENTER|LJUST, "OFFSET")); + + strcpy(buf2, arglist[0]); + strcpy(buf3, arglist[2]); + fprintf(fp, "%s %s %s\n", + mkstring(ptebuf, len1, CENTER|RJUST, NULL), + mkstring(buf2, len2, CENTER|RJUST, NULL), + mkstring(buf3, len3, CENTER|RJUST, NULL)); + return page_present; + } + + sprintf(physbuf, "%lx", paddr); + len2 = MAX(strlen(physbuf), strlen("PHYSICAL")); + fprintf(fp, "%s ", mkstring(buf1, len2, CENTER | LJUST, "PHYSICAL")); + + fprintf(fp, "FLAGS\n"); + fprintf(fp, "%s %s ", + mkstring(ptebuf, len1, CENTER | RJUST, NULL), + mkstring(physbuf, len2, CENTER | RJUST, NULL)); + + check_page_flags(pte); + + return page_present; +} + +/* + * Identify and print the segment name to which the virtual address belongs + */ +static void +get_segment_name(ulong vaddr, int verbose) +{ + const char * segment; + + if (verbose) { + if (vaddr < 0x4000000000000000lu) + segment = "xuvrange"; + else if (vaddr < 0x8000000000000000lu) + segment = "xsprange"; + else if (vaddr < 0xc000000000000000lu) + segment = "xkprange"; + else + segment = "xkvrange"; + + fprintf(fp, "SEGMENT: %s\n", segment); + } +} + +/* + * Virtual to physical memory translation. This function will be called + * by both loongarch64_kvtop and loongarch64_uvtop. + */ +static int +loongarch64_pgd_vtop(ulong *pgd, ulong vaddr, physaddr_t *paddr, int verbose) +{ + ulong *pgd_ptr, pgd_val; + ulong *pmd_ptr, pmd_val; + ulong *pte_ptr, pte_val; + + get_segment_name(vaddr, verbose); + + if (IS_XKPRANGE(vaddr)) { + *paddr = VTOP(vaddr); + return TRUE; + } + + if (verbose) + fprintf(fp, "PAGE DIRECTORY: %016lx\n", (ulong)pgd); + + pgd_ptr = pgd + pgd_index(vaddr); + FILL_PGD(PAGEBASE(pgd), KVADDR, PAGESIZE()); + pgd_val = ULONG(machdep->pgd + PAGEOFFSET(pgd_ptr)); + if (verbose) + fprintf(fp, " PGD: %16lx => %16lx\n", (ulong)pgd_ptr, pgd_val); + if (!pgd_val) + goto no_page; + + pmd_ptr = (ulong *)(VTOP(pgd_val) + sizeof(pmd_t) * pmd_index(vaddr)); + FILL_PMD(PAGEBASE(pmd_ptr), PHYSADDR, PAGESIZE()); + pmd_val = ULONG(machdep->pmd + PAGEOFFSET(pmd_ptr)); + if (verbose) + fprintf(fp, " PMD: %016lx => %016lx\n", (ulong)pmd_ptr, pmd_val); + if (!pmd_val) + goto no_page; + + pte_ptr = (ulong *)(VTOP(pmd_val) + sizeof(pte_t) * pte_index(vaddr)); + FILL_PTBL(PAGEBASE(pte_ptr), PHYSADDR, PAGESIZE()); + pte_val = ULONG(machdep->ptbl + PAGEOFFSET(pte_ptr)); + if (verbose) + fprintf(fp, " PTE: %016lx => %016lx\n", (ulong)pte_ptr, pte_val); + if (!pte_val) + goto no_page; + + if (!(pte_val & _PAGE_PRESENT)) { + if (verbose) { + fprintf(fp, "\n"); + loongarch64_translate_pte((ulong)pte_val, 0, pte_val); + } + return FALSE; + } + + *paddr = PTOB(pte_val >> _PFN_SHIFT) + PAGEOFFSET(vaddr); + + if (verbose) { + fprintf(fp, " PAGE: %016lx\n\n", PAGEBASE(*paddr)); + loongarch64_translate_pte(pte_val, 0, 0); + } + + return TRUE; +no_page: + fprintf(fp, "invalid\n"); + return FALSE; +} + +/* Translates a user virtual address to its physical address. cmd_vtop() sets + * the verbose flag so that the pte translation gets displayed; all other + * callers quietly accept the translation. + */ +static int +loongarch64_uvtop(struct task_context *tc, ulong vaddr, physaddr_t *paddr, int verbose) +{ + ulong mm, active_mm; + ulong *pgd; + + if (!tc) + error(FATAL, "current context invalid\n"); + + *paddr = 0; + + if (is_kernel_thread(tc->task) && IS_KVADDR(vaddr)) { + readmem(tc->task + OFFSET(task_struct_active_mm), + KVADDR, &active_mm, sizeof(void *), + "task active_mm contents", FAULT_ON_ERROR); + + if (!active_mm) + error(FATAL, + "no active_mm for this kernel thread\n"); + + readmem(active_mm + OFFSET(mm_struct_pgd), + KVADDR, &pgd, sizeof(long), + "mm_struct pgd", FAULT_ON_ERROR); + } else { + if ((mm = task_mm(tc->task, TRUE))) + pgd = ULONG_PTR(tt->mm_struct + OFFSET(mm_struct_pgd)); + else + readmem(tc->mm_struct + OFFSET(mm_struct_pgd), + KVADDR, &pgd, sizeof(long), "mm_struct pgd", + FAULT_ON_ERROR); + } + + return loongarch64_pgd_vtop(pgd, vaddr, paddr, verbose);; +} + +/* Translates a user virtual address to its physical address. cmd_vtop() sets + * the verbose flag so that the pte translation gets displayed; all other + * callers quietly accept the translation. + */ +static int +loongarch64_kvtop(struct task_context *tc, ulong kvaddr, physaddr_t *paddr, int verbose) +{ + if (!IS_KVADDR(kvaddr)) + return FALSE; + + if (!verbose) { + if (IS_XKPRANGE(kvaddr)) { + *paddr = VTOP(kvaddr); + return TRUE; + } + } + + return loongarch64_pgd_vtop((ulong *)vt->kernel_pgd[0], kvaddr, paddr, + verbose); +} + +/* + * Machine dependent command. + */ +static void +loongarch64_cmd_mach(void) +{ + int c; + + while ((c = getopt(argcnt, args, "cmo")) != EOF) { + switch (c) { + case 'c': + case 'm': + case 'o': + option_not_supported(c); + break; + default: + argerrs++; + break; + } + } + + if (argerrs) + cmd_usage(pc->curcmd, SYNOPSIS); + + loongarch64_display_machine_stats(); +} + +/* + * "mach" command output. + */ +static void +loongarch64_display_machine_stats(void) +{ + struct new_utsname *uts; + char buf[BUFSIZE]; + ulong mhz; + + uts = &kt->utsname; + + fprintf(fp, " MACHINE TYPE: %s\n", uts->machine); + fprintf(fp, " MEMORY SIZE: %s\n", get_memory_size(buf)); + fprintf(fp, " CPUS: %d\n", get_cpus_to_display()); + fprintf(fp, " PROCESSOR SPEED: "); + if ((mhz = machdep->processor_speed())) + fprintf(fp, "%ld Mhz\n", mhz); + else + fprintf(fp, "(unknown)\n"); + fprintf(fp, " HZ: %d\n", machdep->hz); + fprintf(fp, " PAGE SIZE: %d\n", PAGESIZE()); + fprintf(fp, " KERNEL STACK SIZE: %ld\n", STACKSIZE()); + +} + +/* + * Unroll a kernel stack. + */ +static void +loongarch64_back_trace_cmd(struct bt_info *bt) +{ + struct loongarch64_unwind_frame current, previous; + struct loongarch64_pt_regs *regs; + char pt_regs[SIZE(pt_regs)]; + int level = 0; + int invalid_ok = 1; + + if (bt->flags & BT_REGS_NOT_FOUND) + return; + + previous.sp = previous.pc = previous.ra = 0; + + current.pc = bt->instptr; + current.sp = bt->stkptr; + current.ra = 0; + + if (!INSTACK(current.sp, bt)) + return; + + if (bt->machdep) { + regs = (struct loongarch64_pt_regs *)bt->machdep; + previous.pc = current.ra = regs->regs[LOONGARCH64_EF_RA]; + } + + while (current.sp <= bt->stacktop - 32 - SIZE(pt_regs)) { + struct syment *symbol = NULL; + ulong offset; + + if (CRASHDEBUG(8)) + fprintf(fp, "level %d pc %#lx ra %#lx sp %lx\n", + level, current.pc, current.ra, current.sp); + + if (!IS_KVADDR(current.pc) && !invalid_ok) + return; + + symbol = value_search(current.pc, &offset); + if (!symbol && !invalid_ok) { + error(FATAL, "PC is unknown symbol (%lx)", current.pc); + return; + } + invalid_ok = 0; + + /* + * If we get an address which points to the start of a + * function, then it could one of the following: + * + * - we are dealing with a noreturn function. The last call + * from a noreturn function has an ra which points to the + * start of the function after it. This is common in the + * oops callchain because of die() which is annotated as + * noreturn. + * + * - we have taken an exception at the start of this function. + * In this case we already have the RA in current.ra. + * + * - we are in one of these routines which appear with zero + * offset in manually-constructed stack frames: + * + * * ret_from_exception + * * ret_from_irq + * * ret_from_fork + * * ret_from_kernel_thread + */ + if (symbol && !STRNEQ(symbol->name, "ret_from") && !offset && + !current.ra && current.sp < bt->stacktop - 32 - SIZE(pt_regs)) { + if (CRASHDEBUG(8)) + fprintf(fp, "zero offset at %s, try previous symbol\n", + symbol->name); + + symbol = value_search(current.pc - 4, &offset); + if (!symbol) { + error(FATAL, "PC is unknown symbol (%lx)", current.pc); + return; + } + } + + if (symbol && loongarch64_is_exception_entry(symbol)) { + + GET_STACK_DATA(current.sp, pt_regs, sizeof(pt_regs)); + + previous.ra = regs->regs[LOONGARCH64_EF_RA]; + previous.sp = regs->regs[LOONGARCH64_EF_SP]; + current.ra = regs->csr_epc; + + if (CRASHDEBUG(8)) + fprintf(fp, "exception pc %#lx ra %#lx sp %lx\n", + previous.pc, previous.ra, previous.sp); + + /* The PC causing the exception may have been invalid */ + invalid_ok = 1; + } else if (symbol) { + loongarch64_analyze_function(symbol->value, offset, ¤t, &previous); + } else { + /* + * The current PC is invalid. Assume that the code + * jumped through a invalid pointer and that the SP has + * not been adjusted. + */ + previous.sp = current.sp; + } + + if (symbol) + loongarch64_dump_backtrace_entry(bt, symbol, ¤t, &previous, level++); + + current.pc = current.ra; + current.sp = previous.sp; + current.ra = previous.ra; + + if (CRASHDEBUG(8)) + fprintf(fp, "next %d pc %#lx ra %#lx sp %lx\n", + level, current.pc, current.ra, current.sp); + + previous.sp = previous.pc = previous.ra = 0; + } +} + +static void +loongarch64_analyze_function(ulong start, ulong offset, + struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous) +{ + ulong i, reg; + ulong rapos = 0; + ulong spadjust = 0; + uint32_t *funcbuf, *ip; + + if (CRASHDEBUG(8)) + fprintf(fp, "%s: start %#lx offset %#lx\n", + __func__, start, offset); + + if (!offset) { + previous->sp = current->sp; + return; + } + + ip = funcbuf = (uint32_t *)GETBUF(offset); + if (!readmem(start, KVADDR, funcbuf, offset, + "loongarch64_analyze_function", RETURN_ON_ERROR)) { + FREEBUF(funcbuf); + error(WARNING, "Cannot read function at %16lx\n", start); + return; + } + + for (i = 0; i < offset; i += 4) { + ulong insn = *ip & 0xffffffff; + ulong si12 = (insn >> 10) & 0xfff; /* bit[10:21] */ + + if (CRASHDEBUG(8)) + fprintf(fp, "insn @ %#lx = %#lx\n", start + i, insn); + + if ((insn & 0xffc003ff) == 0x02800063 || /* addi.w sp,sp,si12 */ + (insn & 0xffc003ff) == 0x02c00063) { /* addi.d sp,sp,si12 */ + if (!(si12 & 0x800)) /* si12 < 0 */ + break; + spadjust += 0x1000 - si12; + if (CRASHDEBUG(8)) + fprintf(fp, "si12 =%lu ,spadjust = %lu\n", si12, spadjust); + } else if ((insn & 0xffc003ff) == 0x29800061 || /* st.w ra,sp,si12 */ + (insn & 0xffc003ff) == 0x29c00061) { /* st.d ra,sp,si12 */ + rapos = current->sp + si12; + if (CRASHDEBUG(8)) + fprintf(fp, "rapos %lx\n", rapos); + break; + } + + ip++; + } + + FREEBUF(funcbuf); + + previous->sp = current->sp + spadjust; + + if (rapos && !readmem(rapos, KVADDR, ¤t->ra, + sizeof(current->ra), "RA from stack", + RETURN_ON_ERROR)) { + error(FATAL, "Cannot read RA from stack %lx", rapos); + return; + } +} + +static void +loongarch64_dump_backtrace_entry(struct bt_info *bt, struct syment *sym, + struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous, int level) +{ + const char *name = sym ? sym->name : "(invalid)"; + struct load_module *lm; + char *name_plus_offset = NULL; + struct syment *symp; + ulong symbol_offset; + char buf[BUFSIZE]; + char pt_regs[SIZE(pt_regs)]; + + if (bt->flags & BT_SYMBOL_OFFSET) { + symp = value_search(current->pc, &symbol_offset); + + if (symp && symbol_offset) + name_plus_offset = + value_to_symstr(current->pc, buf, bt->radix); + } + + fprintf(fp, "%s#%d [%016lx] %s at %016lx", level < 10 ? " " : "", level, + current->sp, name_plus_offset ? name_plus_offset : name, + current->pc); + + if (module_symbol(current->pc, NULL, &lm, NULL, 0)) + fprintf(fp, " [%s]", lm->mod_name); + + fprintf(fp, "\n"); + + /* + * 'bt -l', get a line number associated with a current pc address. + */ + if (bt->flags & BT_LINE_NUMBERS) { + get_line_number(current->pc, buf, FALSE); + if (strlen(buf)) + fprintf(fp, " %s\n", buf); + } + + if (sym && loongarch64_is_exception_entry(sym)) { + GET_STACK_DATA(current->sp, &pt_regs, SIZE(pt_regs)); + loongarch64_dump_exception_stack(bt, pt_regs); + } + + /* bt -f */ + if (bt->flags & BT_FULL) { + fprintf(fp, " " + "[PC: %016lx RA: %016lx SP: %016lx SIZE: %ld]\n", + current->pc, current->ra, current->sp, + previous->sp - current->sp); + loongarch64_display_full_frame(bt, current, previous); + } +} + +static void +loongarch64_dump_exception_stack(struct bt_info *bt, char *pt_regs) +{ + struct loongarch64_pt_regs *regs; + int i; + char buf[BUFSIZE]; + + for (i = 0; i < 32; i += 4) { + fprintf(fp, " $%2d : %016lx %016lx %016lx %016lx\n", + i, regs->regs[i], regs->regs[i+1], + regs->regs[i+2], regs->regs[i+3]); + } + + value_to_symstr(regs->csr_epc, buf, 16); + fprintf(fp, " epc : %016lx %s\n", regs->csr_epc, buf); + + value_to_symstr(regs->regs[LOONGARCH64_EF_RA], buf, 16); + fprintf(fp, " ra : %016lx %s\n", regs->regs[LOONGARCH64_EF_RA], buf); + + fprintf(fp, " CSR crmd : %016lx\n", regs->csr_crmd); + fprintf(fp, " CSR prmd : %016lx\n", regs->csr_prmd); + fprintf(fp, " CSR ecfg : %016lx\n", regs->csr_ecfg); + fprintf(fp, " CSR estat: %016lx\n", regs->csr_estat); + fprintf(fp, " CSR euen : %016lx\n", regs->csr_euen); + + fprintf(fp, " BadVA : %016lx\n", regs->csr_badvaddr); +} + +static int +loongarch64_is_exception_entry(struct syment *sym) +{ + return STREQ(sym->name, "ret_from_exception") || + STREQ(sym->name, "ret_from_irq") || + STREQ(sym->name, "work_resched") || + STREQ(sym->name, "handle_sys"); +} + +/* + * 'bt -f' commend output + * Display all stack data contained in a frame + */ +static void +loongarch64_display_full_frame(struct bt_info *bt, struct loongarch64_unwind_frame *current, + struct loongarch64_unwind_frame *previous) +{ + int i, u_idx; + ulong *up; + ulong words, addr; + char buf[BUFSIZE]; + + if (previous->sp < current->sp) + return; + + if (!(INSTACK(previous->sp, bt) && INSTACK(current->sp, bt))) + return; + + words = (previous->sp - current->sp) / sizeof(ulong) + 1; + addr = current->sp; + u_idx = (current->sp - bt->stackbase) / sizeof(ulong); + + for (i = 0; i < words; i++, u_idx++) { + if (!(i & 1)) + fprintf(fp, "%s %lx: ", i ? "\n" : "", addr); + + up = (ulong *)(&bt->stackbuf[u_idx*sizeof(ulong)]); + fprintf(fp, "%s ", format_stack_entry(bt, buf, *up, 0)); + addr += sizeof(ulong); + } + fprintf(fp, "\n"); +} + +static void +loongarch64_stackframe_init(void) +{ + long task_struct_thread = MEMBER_OFFSET("task_struct", "thread"); + long thread_reg03_sp = MEMBER_OFFSET("thread_struct", "reg03"); + long thread_reg01_ra = MEMBER_OFFSET("thread_struct", "reg01"); + + if ((task_struct_thread == INVALID_OFFSET) || + (thread_reg03_sp == INVALID_OFFSET) || + (thread_reg01_ra == INVALID_OFFSET)) { + error(FATAL, + "cannot determine thread_struct offsets\n"); + return; + } + + ASSIGN_OFFSET(task_struct_thread_reg03) = + task_struct_thread + thread_reg03_sp; + ASSIGN_OFFSET(task_struct_thread_reg01) = + task_struct_thread + thread_reg01_ra; + + MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus", "pr_reg"); + STRUCT_SIZE_INIT(note_buf, "note_buf_t"); +} + +/* + * Get a stack frame combination of pc and ra from the most relevant spot. + */ +static void +loongarch64_get_stack_frame(struct bt_info *bt, ulong *pcp, ulong *spp) +{ + ulong ksp, nip; + int ret = 0; + + nip = ksp = 0; + bt->machdep = NULL; + + if (DUMPFILE() && is_task_active(bt->task)) { + ret = loongarch64_get_dumpfile_stack_frame(bt, &nip, &ksp); + } + else { + ret = loongarch64_get_frame(bt, &nip, &ksp); + } + + if (!ret) + error(WARNING, "cannot determine starting stack frame for task %lx\n", + bt->task); + + if (pcp) + *pcp = nip; + if (spp) + *spp = ksp; +} + +/* + * Get the starting point for the active cpu in a diskdump. + */ +static int +loongarch64_get_dumpfile_stack_frame(struct bt_info *bt, ulong *nip, ulong *ksp) +{ + const struct machine_specific *ms = machdep->machspec; + struct loongarch64_pt_regs *regs; + ulong epc, sp; + + if (!ms->crash_task_regs) { + bt->flags |= BT_REGS_NOT_FOUND; + return FALSE; + } + + /* + * We got registers for panic task from crash_notes. Just return them. + */ + regs = &ms->crash_task_regs[bt->tc->processor]; + epc = regs->regs[LOONGARCH64_EF_CSR_EPC]; + sp = regs->regs[LOONGARCH64_EF_SP]; + + if (!epc && !sp) { + bt->flags |= BT_REGS_NOT_FOUND; + return FALSE; + } + + if (nip) + *nip = epc; + if (ksp) + *ksp = sp; + + bt->machdep = regs; + + return TRUE; +} + +/* + * Do the work for loongarch64_get_stack_frame() for non-active tasks. + * Get SP and PC values for idle tasks. + */ +static int +loongarch64_get_frame(struct bt_info *bt, ulong *pcp, ulong *spp) +{ + if (!bt->tc || !(tt->flags & THREAD_INFO)) + return FALSE; + + if (!readmem(bt->task + OFFSET(task_struct_thread_reg01), + KVADDR, pcp, sizeof(*pcp), + "thread_struct.regs01", + RETURN_ON_ERROR)) { + return FALSE; + } + + if (!readmem(bt->task + OFFSET(task_struct_thread_reg03), + KVADDR, spp, sizeof(*spp), + "thread_struct.regs03", + RETURN_ON_ERROR)) { + return FALSE; + } + + return TRUE; +} + +static int +loongarch64_init_active_task_regs(void) +{ + int retval; + + retval = loongarch64_get_crash_notes(); + if (retval == TRUE) + return retval; + + return loongarch64_get_elf_notes(); +} + +/* + * Retrieve task registers for the time of the crash. + */ +static int +loongarch64_get_crash_notes(void) +{ + struct machine_specific *ms = machdep->machspec; + ulong crash_notes; + Elf64_Nhdr *note; + ulong offset; + char *buf, *p; + ulong *notes_ptrs; + ulong i; + + /* + * crash_notes contains per cpu memory for storing cpu states + * in case of system crash. + */ + if (!symbol_exists("crash_notes")) + return FALSE; + + crash_notes = symbol_value("crash_notes"); + + notes_ptrs = (ulong *)GETBUF(kt->cpus*sizeof(notes_ptrs[0])); + + /* + * Read crash_notes for the first CPU. crash_notes are in standard ELF + * note format. + */ + if (!readmem(crash_notes, KVADDR, ¬es_ptrs[kt->cpus-1], + sizeof(notes_ptrs[kt->cpus-1]), "crash_notes", + RETURN_ON_ERROR)) { + error(WARNING, "cannot read crash_notes\n"); + FREEBUF(notes_ptrs); + return FALSE; + } + + if (symbol_exists("__per_cpu_offset")) { + + /* + * Add __per_cpu_offset for each cpu to form the pointer to the notes + */ + for (i = 0; i < kt->cpus; i++) + notes_ptrs[i] = notes_ptrs[kt->cpus-1] + kt->__per_cpu_offset[i]; + } + + buf = GETBUF(SIZE(note_buf)); + + if (!(panic_task_regs = calloc((size_t)kt->cpus, sizeof(*panic_task_regs)))) + error(FATAL, "cannot calloc panic_task_regs space\n"); + + for (i = 0; i < kt->cpus; i++) { + + if (!readmem(notes_ptrs[i], KVADDR, buf, SIZE(note_buf), "note_buf_t", + RETURN_ON_ERROR)) { + error(WARNING, + "cannot find NT_PRSTATUS note for cpu: %d\n", i); + goto fail; + } + + /* + * Do some sanity checks for this note before reading registers from it. + */ + note = (Elf64_Nhdr *)buf; + p = buf + sizeof(Elf64_Nhdr); + + /* + * dumpfiles created with qemu won't have crash_notes, but there will + * be elf notes; dumpfiles created by kdump do not create notes for + * offline cpus. + */ + if (note->n_namesz == 0 && (DISKDUMP_DUMPFILE() || KDUMP_DUMPFILE())) { + if (DISKDUMP_DUMPFILE()) + note = diskdump_get_prstatus_percpu(i); + else if (KDUMP_DUMPFILE()) + note = netdump_get_prstatus_percpu(i); + if (note) { + /* + * SIZE(note_buf) accounts for a "final note", which is a + * trailing empty elf note header. + */ + long notesz = SIZE(note_buf) - sizeof(Elf64_Nhdr); + + if (sizeof(Elf64_Nhdr) + roundup(note->n_namesz, 4) + + note->n_descsz == notesz) + BCOPY((char *)note, buf, notesz); + } else { + error(WARNING, + "cannot find NT_PRSTATUS note for cpu: %d\n", i); + continue; + } + } + + /* + * Check the sanity of NT_PRSTATUS note only for each online cpu. + */ + if (note->n_type != NT_PRSTATUS) { + error(WARNING, "invalid NT_PRSTATUS note (n_type != NT_PRSTATUS)\n"); + goto fail; + } + if (!STRNEQ(p, "CORE")) { + error(WARNING, "invalid NT_PRSTATUS note (name != \"CORE\"\n"); + goto fail; + } + + /* + * Find correct location of note data. This contains elf_prstatus + * structure which has registers etc. for the crashed task. + */ + offset = sizeof(Elf64_Nhdr); + offset = roundup(offset + note->n_namesz, 4); + p = buf + offset; /* start of elf_prstatus */ + + BCOPY(p + OFFSET(elf_prstatus_pr_reg), &panic_task_regs[i], + sizeof(panic_task_regs[i])); + } + + /* + * And finally we have the registers for the crashed task. This is + * used later on when dumping backtrace. + */ + ms->crash_task_regs = panic_task_regs; + + FREEBUF(buf); + FREEBUF(notes_ptrs); + return TRUE; + +fail: + FREEBUF(buf); + FREEBUF(notes_ptrs); + free(panic_task_regs); + return FALSE; +} + +static int +loongarch64_get_elf_notes(void) +{ + struct machine_specific *ms = machdep->machspec; + int i; + + if (!DISKDUMP_DUMPFILE() && !KDUMP_DUMPFILE()) + return FALSE; + + panic_task_regs = calloc(kt->cpus, sizeof(*panic_task_regs)); + if (!panic_task_regs) + error(FATAL, "cannot calloc panic_task_regs space\n"); + + for (i = 0; i < kt->cpus; i++) { + Elf64_Nhdr *note = NULL; + size_t len; + + if (DISKDUMP_DUMPFILE()) + note = diskdump_get_prstatus_percpu(i); + else if (KDUMP_DUMPFILE()) + note = netdump_get_prstatus_percpu(i); + + if (!note) { + error(WARNING, + "cannot find NT_PRSTATUS note for cpu: %d\n", i); + continue; + } + + len = sizeof(Elf64_Nhdr); + len = roundup(len + note->n_namesz, 4); + + BCOPY((char *)note + len + OFFSET(elf_prstatus_pr_reg), + &panic_task_regs[i], sizeof(panic_task_regs[i])); + } + + ms->crash_task_regs = panic_task_regs; + + return TRUE; +} + +/* + * Accept or reject a symbol from the kernel namelist. + */ +static int +loongarch64_verify_symbol(const char *name, ulong value, char type) +{ + if (!strncmp(name, ".L", 2) || !strncmp(name, "L0", 2)) + return FALSE; + + if (CRASHDEBUG(8) && name && strlen(name)) + fprintf(fp, "%08lx %s\n", value, name); + + if (STREQ(name, "_text") || STREQ(name, "_stext")) + machdep->flags |= KSYMS_START; + + return (name && strlen(name) && (machdep->flags & KSYMS_START) && + !STRNEQ(name, "__func__.") && !STRNEQ(name, "__crc_")); +} + +/* + * Override smp_num_cpus if possible and necessary. + */ +static int +loongarch64_get_smp_cpus(void) +{ + return (get_cpus_online() > 0) ? get_cpus_online() : kt->cpus; +} + +static ulong +loongarch64_get_page_size(void) +{ + return memory_page_size(); +} + +/* + * Determine where vmalloc'd memory starts. + */ +static ulong +loongarch64_vmalloc_start(void) +{ + return first_vmalloc_address(); +} + +/* + * Calculate and return the speed of the processor. + */ +static ulong +loongarch64_processor_speed(void) +{ + unsigned long cpu_hz = 0; + + if (machdep->mhz) + return (machdep->mhz); + + if (symbol_exists("cpu_clock_freq")) { + get_symbol_data("cpu_clock_freq", sizeof(int), &cpu_hz); + if (cpu_hz) + return(machdep->mhz = cpu_hz/1000000); + } + + return 0; +} + +/* + * Checks whether given task is valid task address. + */ +static int +loongarch64_is_task_addr(ulong task) +{ + if (tt->flags & THREAD_INFO) + return IS_KVADDR(task); + + return (IS_KVADDR(task) && ALIGNED_STACK_OFFSET(task) == 0); +} + +/* + * 'help -m/M' command output + */ +void +loongarch64_dump_machdep_table(ulong arg) +{ + int others = 0; + + fprintf(fp, " flags: %lx (", machdep->flags); + if (machdep->flags & KSYMS_START) + fprintf(fp, "%sKSYMS_START", others++ ? "|" : ""); + fprintf(fp, ")\n"); + + fprintf(fp, " kvbase: %lx\n", machdep->kvbase); + fprintf(fp, " identity_map_base: %lx\n", machdep->identity_map_base); + fprintf(fp, " pagesize: %d\n", machdep->pagesize); + fprintf(fp, " pageshift: %d\n", machdep->pageshift); + fprintf(fp, " pagemask: %llx\n", machdep->pagemask); + fprintf(fp, " pageoffset: %lx\n", machdep->pageoffset); + fprintf(fp, " pgdir_shift: %d\n", PGDIR_SHIFT); + fprintf(fp, " ptrs_per_pgd: %lu\n", PTRS_PER_PGD); + fprintf(fp, " ptrs_per_pte: %ld\n", PTRS_PER_PTE); + fprintf(fp, " stacksize: %ld\n", machdep->stacksize); + fprintf(fp, " hz: %d\n", machdep->hz); + fprintf(fp, " memsize: %ld (0x%lx)\n", + machdep->memsize, machdep->memsize); + fprintf(fp, " bits: %d\n", machdep->bits); + fprintf(fp, " back_trace: loongarch64_back_trace_cmd()\n"); + fprintf(fp, " processor_speed: loongarch64_processor_speed()\n"); + fprintf(fp, " uvtop: loongarch64_uvtop()\n"); + fprintf(fp, " kvtop: loongarch64_kvtop()\n"); + fprintf(fp, " get_stack_frame: loongarch64_get_stack_frame()\n"); + fprintf(fp, " get_stackbase: generic_get_stackbase()\n"); + fprintf(fp, " get_stacktop: generic_get_stacktop()\n"); + fprintf(fp, " translate_pte: loongarch64_translate_pte()\n"); + fprintf(fp, " memory_size: generic_memory_size()\n"); + fprintf(fp, " vmalloc_start: loongarch64_vmalloc_start()\n"); + fprintf(fp, " is_task_addr: loongarch64_is_task_addr()\n"); + fprintf(fp, " verify_symbol: loongarch64_verify_symbol()\n"); + fprintf(fp, " dis_filter: generic_dis_filter()\n"); + fprintf(fp, " dump_irq: generic_dump_irq()\n"); + fprintf(fp, " show_interrupts: generic_show_interrupts()\n"); + fprintf(fp, " get_irq_affinity: generic_get_irq_affinity()\n"); + fprintf(fp, " cmd_mach: loongarch64_cmd_mach()\n"); + fprintf(fp, " get_smp_cpus: loongarch64_get_smp_cpus()\n"); + fprintf(fp, " is_kvaddr: generic_is_kvaddr()\n"); + fprintf(fp, " is_uvaddr: generic_is_uvaddr()\n"); + fprintf(fp, " verify_paddr: generic_verify_paddr()\n"); + fprintf(fp, " init_kernel_pgd: NULL\n"); + fprintf(fp, " value_to_symbol: generic_machdep_value_to_symbol()\n"); + fprintf(fp, " line_number_hooks: NULL\n"); + fprintf(fp, " last_pgd_read: %lx\n", machdep->last_pgd_read); + fprintf(fp, " last_pmd_read: %lx\n", machdep->last_pmd_read); + fprintf(fp, " last_ptbl_read: %lx\n", machdep->last_ptbl_read); + fprintf(fp, " pgd: %lx\n", (ulong)machdep->pgd); + fprintf(fp, " pmd: %lx\n", (ulong)machdep->pmd); + fprintf(fp, " ptbl: %lx\n", (ulong)machdep->ptbl); + fprintf(fp, " section_size_bits: %ld\n", machdep->section_size_bits); + fprintf(fp, " max_physmem_bits: %ld\n", machdep->max_physmem_bits); + fprintf(fp, " sections_per_root: %ld\n", machdep->sections_per_root); + fprintf(fp, " machspec: %lx\n", (ulong)machdep->machspec); +} + +static void +pt_level_alloc(char **lvl, char *name) +{ + size_t sz = PAGESIZE(); + void *pointer = malloc(sz); + + if (!pointer) + error(FATAL, name); + *lvl = pointer; +} + +void +loongarch64_init(int when) +{ + switch (when) { + case SETUP_ENV: + machdep->process_elf_notes = process_elf64_notes; + break; + + case PRE_SYMTAB: + machdep->verify_symbol = loongarch64_verify_symbol; + machdep->machspec = &loongarch64_machine_specific; + if (pc->flags & KERNEL_DEBUG_QUERY) + return; + machdep->last_pgd_read = 0; + machdep->last_pmd_read = 0; + machdep->last_ptbl_read = 0; + machdep->verify_paddr = generic_verify_paddr; + machdep->ptrs_per_pgd = PTRS_PER_PGD; + break; + + case PRE_GDB: + machdep->pagesize = loongarch64_get_page_size(); + machdep->pageshift = ffs(machdep->pagesize) - 1; + machdep->pageoffset = machdep->pagesize - 1; + machdep->pagemask = ~((ulonglong)machdep->pageoffset); + if (machdep->pagesize >= 16384) + machdep->stacksize = machdep->pagesize; + else + machdep->stacksize = machdep->pagesize * 2; + + pt_level_alloc(&machdep->pgd, "cannot malloc pgd space."); + pt_level_alloc(&machdep->pmd, "cannot malloc pmd space."); + pt_level_alloc(&machdep->ptbl, "cannot malloc ptbl space."); + machdep->kvbase = 0x8000000000000000lu; + machdep->identity_map_base = machdep->kvbase; + machdep->is_kvaddr = generic_is_kvaddr; + machdep->is_uvaddr = generic_is_uvaddr; + machdep->uvtop = loongarch64_uvtop; + machdep->kvtop = loongarch64_kvtop; + machdep->cmd_mach = loongarch64_cmd_mach; + machdep->back_trace = loongarch64_back_trace_cmd; + machdep->get_stack_frame = loongarch64_get_stack_frame; + machdep->vmalloc_start = loongarch64_vmalloc_start; + machdep->processor_speed = loongarch64_processor_speed; + machdep->get_stackbase = generic_get_stackbase; + machdep->get_stacktop = generic_get_stacktop; + machdep->translate_pte = loongarch64_translate_pte; + machdep->memory_size = generic_memory_size; + machdep->is_task_addr = loongarch64_is_task_addr; + machdep->get_smp_cpus = loongarch64_get_smp_cpus; + machdep->dis_filter = generic_dis_filter; + machdep->dump_irq = generic_dump_irq; + machdep->show_interrupts = generic_show_interrupts; + machdep->get_irq_affinity = generic_get_irq_affinity; + machdep->value_to_symbol = generic_machdep_value_to_symbol; + machdep->init_kernel_pgd = NULL; + break; + + case POST_GDB: + machdep->section_size_bits = _SECTION_SIZE_BITS; + machdep->max_physmem_bits = _MAX_PHYSMEM_BITS; + + if (symbol_exists("irq_desc")) + ARRAY_LENGTH_INIT(machdep->nr_irqs, irq_desc, + "irq_desc", NULL, 0); + else if (kernel_symbol_exists("nr_irqs")) + get_symbol_data("nr_irqs", sizeof(unsigned int), + &machdep->nr_irqs); + + loongarch64_stackframe_init(); + + if (!machdep->hz) + machdep->hz = 250; + break; + + case POST_VM: + /* + * crash_notes contains machine specific information about the + * crash. In particular, it contains CPU registers at the time + * of the crash. We need this information to extract correct + * backtraces from the panic task. + */ + if (!ACTIVE() && !loongarch64_init_active_task_regs()) + error(WARNING,"cannot retrieve registers for active task%s\n\n", + kt->cpus > 1 ? "s" : ""); + break; + } +} + +void +loongarch64_display_regs_from_elf_notes(int cpu, FILE *ofp) +{ + const struct machine_specific *ms = machdep->machspec; + struct loongarch64_pt_regs *regs; + + if (!ms->crash_task_regs) { + error(INFO, "registers not collected for cpu %d\n", cpu); + return; + } + + regs = &ms->crash_task_regs[cpu]; + if (!regs->regs[LOONGARCH64_EF_SP] && !regs->regs[LOONGARCH64_EF_CSR_EPC]) { + error(INFO, "registers not collected for cpu %d\n", cpu); + return; + } + + fprintf(ofp, + " R0: %016lx R1: %016lx R2: %016lx\n" + " R3: %016lx R4: %016lx R5: %016lx\n" + " R6: %016lx R7: %016lx R8: %016lx\n" + " R9: %016lx R10: %016lx R11: %016lx\n" + " R12: %016lx R13: %016lx R14: %016lx\n" + " R15: %016lx R16: %016lx R17: %016lx\n" + " R18: %016lx R19: %016lx R20: %016lx\n" + " R21: %016lx R22: %016lx R23: %016lx\n" + " R24: %016lx R25: %016lx R26: %016lx\n" + " R27: %016lx R28: %016lx R29: %016lx\n" + " R30: %016lx R31: %016lx\n" + " CSR epc : %016lx CSR badv: %016lx\n" + " CSR crmd: %08lx CSR prmd: %08lx\n" + " CSR ecfg: %08lx CSR estat: %08lx\n" + " CSR eneu: %08lx", + regs->regs[LOONGARCH64_EF_R0], + regs->regs[LOONGARCH64_EF_R0 + 1], + regs->regs[LOONGARCH64_EF_R0 + 2], + regs->regs[LOONGARCH64_EF_R0 + 3], + regs->regs[LOONGARCH64_EF_R0 + 4], + regs->regs[LOONGARCH64_EF_R0 + 5], + regs->regs[LOONGARCH64_EF_R0 + 6], + regs->regs[LOONGARCH64_EF_R0 + 7], + regs->regs[LOONGARCH64_EF_R0 + 8], + regs->regs[LOONGARCH64_EF_R0 + 9], + regs->regs[LOONGARCH64_EF_R0 + 10], + regs->regs[LOONGARCH64_EF_R0 + 11], + regs->regs[LOONGARCH64_EF_R0 + 12], + regs->regs[LOONGARCH64_EF_R0 + 13], + regs->regs[LOONGARCH64_EF_R0 + 14], + regs->regs[LOONGARCH64_EF_R0 + 15], + regs->regs[LOONGARCH64_EF_R0 + 16], + regs->regs[LOONGARCH64_EF_R0 + 17], + regs->regs[LOONGARCH64_EF_R0 + 18], + regs->regs[LOONGARCH64_EF_R0 + 19], + regs->regs[LOONGARCH64_EF_R0 + 20], + regs->regs[LOONGARCH64_EF_R0 + 21], + regs->regs[LOONGARCH64_EF_R0 + 22], + regs->regs[LOONGARCH64_EF_R0 + 23], + regs->regs[LOONGARCH64_EF_R0 + 24], + regs->regs[LOONGARCH64_EF_R0 + 25], + regs->regs[LOONGARCH64_EF_R0 + 26], + regs->regs[LOONGARCH64_EF_R0 + 27], + regs->regs[LOONGARCH64_EF_R0 + 28], + regs->regs[LOONGARCH64_EF_R0 + 29], + regs->regs[LOONGARCH64_EF_R0 + 30], + regs->regs[LOONGARCH64_EF_R0 + 31], + regs->regs[LOONGARCH64_EF_CSR_EPC], + regs->regs[LOONGARCH64_EF_CSR_BADVADDR], + regs->regs[LOONGARCH64_EF_CSR_CRMD], + regs->regs[LOONGARCH64_EF_CSR_PRMD], + regs->regs[LOONGARCH64_EF_CSR_ECFG], + regs->regs[LOONGARCH64_EF_CSR_ESTAT], + regs->regs[LOONGARCH64_EF_CSR_EUEN]); +} + +#else /* !LOONGARCH64 */ + +#include "defs.h" + +void +loongarch64_display_regs_from_elf_notes(int cpu, FILE *ofp) +{ + return; +} + +#endif /* !LOONGARCH64 */ diff --git a/main.c b/main.c index 4fd4ca5..71bcc15 100644 --- a/main.c +++ b/main.c @@ -228,7 +228,8 @@ main(int argc, char **argv) } else if (STREQ(long_options[option_index].name, "kaslr")) { if (!machine_type("X86_64") && !machine_type("ARM64") && !machine_type("X86") && - !machine_type("S390X") && !machine_type("RISCV64")) + !machine_type("S390X") && !machine_type("RISCV64") && + !machine_type("LOONGARCH64")) error(INFO, "--kaslr not valid " "with this machine type.\n"); else if (STREQ(optarg, "auto")) diff --git a/netdump.c b/netdump.c index 3907863..e977ae8 100644 --- a/netdump.c +++ b/netdump.c @@ -43,6 +43,7 @@ static void get_netdump_regs_arm(struct bt_info *, ulong *, ulong *); static void get_netdump_regs_arm64(struct bt_info *, ulong *, ulong *); static void get_netdump_regs_mips(struct bt_info *, ulong *, ulong *); static void get_netdump_regs_riscv(struct bt_info *, ulong *, ulong *); +static void get_netdump_regs_loongarch64(struct bt_info *, ulong *, ulong *); static void check_dumpfile_size(char *); static int proc_kcore_init_32(FILE *, int); static int proc_kcore_init_64(FILE *, int); @@ -217,6 +218,11 @@ is_netdump(char *file, ulong source_query) source_query)) goto bailout; break; + case EM_LOONGARCH: + if (machine_type_mismatch(file, "LOONGARCH64", NULL, + source_query)) + goto bailout; + break; default: if (machine_type_mismatch(file, "(unknown)", NULL, @@ -1493,6 +1499,9 @@ dump_Elf32_Ehdr(Elf32_Ehdr *elf) case EM_MIPS: netdump_print("(EM_MIPS)\n"); break; + case EM_LOONGARCH: + netdump_print("(EM_LOONGARCH)\n"); + break; default: netdump_print("(unsupported)\n"); break; @@ -1655,6 +1664,9 @@ dump_Elf64_Ehdr(Elf64_Ehdr *elf) case EM_AARCH64: netdump_print("(EM_AARCH64)\n"); break; + case EM_LOONGARCH: + netdump_print("(EM_LOONGARCH)\n"); + break; default: netdump_print("(unsupported)\n"); break; @@ -2684,6 +2696,10 @@ get_netdump_regs(struct bt_info *bt, ulong *eip, ulong *esp) get_netdump_regs_riscv(bt, eip, esp); break; + case EM_LOONGARCH: + return get_netdump_regs_loongarch64(bt, eip, esp); + break; + default: error(FATAL, "support for ELF machine type %d not available\n", @@ -2942,6 +2958,8 @@ display_regs_from_elf_notes(int cpu, FILE *ofp) mips64_display_regs_from_elf_notes(cpu, ofp); } else if (machine_type("RISCV64")) { riscv64_display_regs_from_elf_notes(cpu, ofp); + } else if (machine_type("LOONGARCH64")) { + loongarch64_display_regs_from_elf_notes(cpu, ofp); } } @@ -2953,7 +2971,7 @@ dump_registers_for_elf_dumpfiles(void) if (!(machine_type("X86") || machine_type("X86_64") || machine_type("ARM64") || machine_type("PPC64") || machine_type("MIPS") || machine_type("MIPS64") || - machine_type("RISCV64"))) + machine_type("RISCV64") || machine_type("LOONGARCH64"))) error(FATAL, "-r option not supported for this dumpfile\n"); if (NETDUMP_DUMPFILE()) { @@ -3888,6 +3906,12 @@ get_netdump_regs_mips(struct bt_info *bt, ulong *eip, ulong *esp) machdep->get_stack_frame(bt, eip, esp); } +static void +get_netdump_regs_loongarch64(struct bt_info *bt, ulong *eip, ulong *esp) +{ + machdep->get_stack_frame(bt, eip, esp); +} + static void get_netdump_regs_riscv(struct bt_info *bt, ulong *eip, ulong *esp) { diff --git a/ramdump.c b/ramdump.c index d2bd7ff..4b03f0f 100644 --- a/ramdump.c +++ b/ramdump.c @@ -190,6 +190,8 @@ char *ramdump_to_elf(void) e_machine = EM_X86_64; else if (machine_type("RISCV64")) e_machine = EM_RISCV; + else if (machine_type("LOONGARCH64")) + e_machine = EM_LOONGARCH; else error(FATAL, "ramdump: unsupported machine type: %s\n", MACHINE_TYPE); diff --git a/symbols.c b/symbols.c index 8e8b4c3..83fa061 100644 --- a/symbols.c +++ b/symbols.c @@ -629,7 +629,7 @@ kaslr_init(void) char *string; if ((!machine_type("X86_64") && !machine_type("ARM64") && !machine_type("X86") && - !machine_type("S390X") && !machine_type("RISCV64")) || (kt->flags & RELOC_SET)) + !machine_type("S390X") && !machine_type("RISCV64") && !machine_type("LOONGARCH64")) || (kt->flags & RELOC_SET)) return; if (!kt->vmcoreinfo._stext_SYMBOL && @@ -795,7 +795,7 @@ store_symbols(bfd *abfd, int dynamic, void *minisyms, long symcount, } else if (!(kt->flags & RELOC_SET)) kt->flags |= RELOC_FORCE; } else if (machine_type("X86_64") || machine_type("ARM64") || - machine_type("S390X") || machine_type("RISCV64")) { + machine_type("S390X") || machine_type("RISCV64") || machine_type("LOONGARCH64")) { if ((kt->flags2 & RELOC_AUTO) && !(kt->flags & RELOC_SET)) derive_kaslr_offset(abfd, dynamic, from, fromend, size, store); @@ -867,7 +867,8 @@ store_sysmap_symbols(void) strerror(errno)); if (!machine_type("X86") && !machine_type("X86_64") && - !machine_type("ARM64") && !machine_type("S390X")) + !machine_type("ARM64") && !machine_type("S390X") && + !machine_type("LOONGARCH64")) kt->flags &= ~RELOC_SET; first = 0; @@ -2976,9 +2977,11 @@ store_module_kallsyms_v2(struct load_module *lm, int start, int curr, /* * On ARM/ARM64 we have linker mapping symbols like '$a' * or '$x' for ARM64, and '$d'. + * On LoongArch we have linker mapping symbols like '.L' + * or 'L0'. * Make sure that these don't end up into our symbol list. */ - if ((machine_type("ARM") || machine_type("ARM64")) && + if ((machine_type("ARM") || machine_type("ARM64") || machine_type("LOONGARCH64")) && !machdep->verify_symbol(nameptr, ec->st_value, ec->st_info)) continue; @@ -4228,6 +4231,10 @@ is_kernel(char *file) if (machine_type_mismatch(file, "SPARC64", NULL, 0)) goto bailout; break; + case EM_LOONGARCH: + if (machine_type_mismatch(file, "LOONGARCH64", NULL, 0)) + goto bailout; + break; default: if (machine_type_mismatch(file, "(unknown)", NULL, 0)) @@ -4495,6 +4502,10 @@ is_shared_object(char *file) if (machine_type("PPC")) return TRUE; break; + case EM_LOONGARCH: + if (machine_type("LOONGARCH64")) + return TRUE; + break; } if (CRASHDEBUG(1)) @@ -9786,6 +9797,10 @@ dump_offset_table(char *spec, ulong makestruct) OFFSET(task_struct_tss_esp)); fprintf(fp, " task_struct_tss_ksp: %ld\n", OFFSET(task_struct_tss_ksp)); + fprintf(fp, " task_struct_thread_reg01: %ld\n", + OFFSET(task_struct_thread_reg01)); + fprintf(fp, " task_struct_thread_reg03: %ld\n", + OFFSET(task_struct_thread_reg03)); fprintf(fp, " task_struct_thread_eip: %ld\n", OFFSET(task_struct_thread_eip)); fprintf(fp, " inactive_task_frame_bp: %ld\n", OFFSET(inactive_task_frame_bp)); -- 2.43.0
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