Projects
home:lf14:branches:Mega:23.09
gcc
_service:tar_scm:LoongArch-Define-the-macro-ASM...
Sign Up
Log In
Username
Password
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File _service:tar_scm:LoongArch-Define-the-macro-ASM_PREFERRED_EH_DATA_FOR.patch of Package gcc
From 05c1df09c70cd0ed48f0644890f69a0128b17a98 Mon Sep 17 00:00:00 2001 From: Lulu Cheng <chenglulu@loongson.cn> Date: Fri, 29 Jul 2022 09:44:52 +0800 Subject: [PATCH 008/124] LoongArch: Define the macro ASM_PREFERRED_EH_DATA_FORMAT by checking the assembler's support for eh_frame encoding. .eh_frame DW_EH_PE_pcrel encoding format is not supported by gas <= 2.39. Check if the assembler support DW_EH_PE_PCREL encoding and define .eh_frame encoding type. gcc/ChangeLog: * config.in: Regenerate. * config/loongarch/loongarch.h (ASM_PREFERRED_EH_DATA_FORMAT): Select the value of the macro definition according to whether HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT is defined. * configure: Regenerate. * configure.ac: Reinstate HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT test. Signed-off-by: Peng Fan <fanpeng@loongson.cn> Signed-off-by: ticat_fp <fanpeng@loongson.cn> --- gcc/config.in | 8 +++++++- gcc/config/loongarch/loongarch.h | 5 +++++ gcc/configure | 34 ++++++++++++++++++++++++++++++++ gcc/configure.ac | 8 ++++++++ 4 files changed, 54 insertions(+), 1 deletion(-) diff --git a/gcc/config.in b/gcc/config.in index 64c27c9cf..67ce422f2 100644 --- a/gcc/config.in +++ b/gcc/config.in @@ -404,13 +404,19 @@ #endif +/* Define if your assembler supports eh_frame pcrel encoding. */ +#ifndef USED_FOR_TARGET +#undef HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT +#endif + + /* Define if your assembler supports the R_PPC64_ENTRY relocation. */ #ifndef USED_FOR_TARGET #undef HAVE_AS_ENTRY_MARKERS #endif -/* Define if your assembler supports explicit relocations. */ +/* Define if your assembler supports explicit relocation. */ #ifndef USED_FOR_TARGET #undef HAVE_AS_EXPLICIT_RELOCS #endif diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h index 12f209047..a52a81adf 100644 --- a/gcc/config/loongarch/loongarch.h +++ b/gcc/config/loongarch/loongarch.h @@ -1130,8 +1130,13 @@ struct GTY (()) machine_function }; #endif +#ifdef HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ + (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) +#else #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_absptr) +#endif /* Do emit .note.GNU-stack by default. */ #ifndef NEED_INDICATE_EXEC_STACK diff --git a/gcc/configure b/gcc/configure index 840eddc7c..3788e240a 100755 --- a/gcc/configure +++ b/gcc/configure @@ -28857,6 +28857,40 @@ if test $gcc_cv_as_loongarch_explicit_relocs = yes; then $as_echo "#define HAVE_AS_EXPLICIT_RELOCS 1" >>confdefs.h +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for eh_frame pcrel encoding support" >&5 +$as_echo_n "checking assembler for eh_frame pcrel encoding support... " >&6; } +if ${gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support+:} false; then : + $as_echo_n "(cached) " >&6 +else + gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support=no + if test x$gcc_cv_as != x; then + $as_echo '.cfi_startproc + .cfi_personality 0x9b,a + .cfi_lsda 0x1b,b + .cfi_endproc' > conftest.s + if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } + then + gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support=yes + else + echo "configure: failed program was" >&5 + cat conftest.s >&5 + fi + rm -f conftest.o conftest.s + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support" >&5 +$as_echo "$gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support" >&6; } +if test $gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support = yes; then + +$as_echo "#define HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT 1" >>confdefs.h + fi ;; diff --git a/gcc/configure.ac b/gcc/configure.ac index 975c852c6..1c376e0d4 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -5324,6 +5324,14 @@ x: [a:pcalau12i $t0,%pc_hi20(a)],, [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, [Define if your assembler supports explicit relocation.])]) + gcc_GAS_CHECK_FEATURE([eh_frame pcrel encoding support], + gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support,, + [.cfi_startproc + .cfi_personality 0x9b,a + .cfi_lsda 0x1b,b + .cfi_endproc],, + [AC_DEFINE(HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT, 1, + [Define if your assembler supports eh_frame pcrel encoding.])]) ;; s390*-*-*) gcc_GAS_CHECK_FEATURE([.gnu_attribute support], -- 2.33.0
Locations
Projects
Search
Status Monitor
Help
Open Build Service
OBS Manuals
API Documentation
OBS Portal
Reporting a Bug
Contact
Mailing List
Forums
Chat (IRC)
Twitter
Open Build Service (OBS)
is an
openSUSE project
.
浙ICP备2022010568号-2