File _service:tar_scm:backport-clang-0011-misc-Suppr... of Package glibc

File _service:tar_scm:backport-clang-0011-misc-Suppress-clang-warnings-on-syslog.patch of Package glibc

From a0dd7c2e8c5c561d34f8ea58b9ad95e5f20329ee Mon Sep 17 00:00:00 2001
From: luofeng <luofeng13@huawei.com>
Date: Thu, 11 Apr 2024 21:37:06 +0800
Subject: [PATCH] backport-clang-0011-misc-Suppress-clang-warnings-on-syslog

---
 misc/syslog.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/misc/syslog.c b/misc/syslog.c
index 4af87f5..c92787e 100644
--- a/misc/syslog.c
+++ b/misc/syslog.c
@@ -31,6 +31,7 @@
 static char sccsid[] = "@(#)syslog.c	8.4 (Berkeley) 3/18/94";
 #endif /* LIBC_SCCS and not lint */
 
+#include <libc-diag.h>
 #include <libio/libioP.h>
 #include <paths.h>
 #include <stdarg.h>
@@ -179,6 +180,10 @@ __vsyslog_internal (int pri, const char *fmt, va_list ap,
 #define SYSLOG_HEADER_WITHOUT_TS(__pri, __msgoff)        \
   "<%d>: %n", __pri, __msgoff
 
+   /* clang complains that adding a 'int_t' to a string does not append to it,
+      but the idea is to print the pid conditionally.  */
+  DIAG_PUSH_NEEDS_COMMENT_CLANG;
+  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wstring-plus-int");
   int l, vl;
   if (has_ts)
     l = __snprintf (bufs, sizeof bufs,
@@ -186,6 +191,8 @@ __vsyslog_internal (int pri, const char *fmt, va_list ap,
   else
     l = __snprintf (bufs, sizeof bufs,
 		    SYSLOG_HEADER_WITHOUT_TS (pri, &msgoff));
+  DIAG_POP_NEEDS_COMMENT_CLANG;
+  
   if (l < 0)
     goto out;
 
@@ -238,6 +245,8 @@ __vsyslog_internal (int pri, const char *fmt, va_list ap,
 	  clarg.buf = buf;
 
 	  int cl;
+	  DIAG_PUSH_NEEDS_COMMENT_CLANG;
+	  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wstring-plus-int");
 	  if (has_ts)
 	    cl = __snprintf (buf, l + 1,
 			     SYSLOG_HEADER (pri, timestamp, &msgoff, pid));
@@ -252,7 +261,7 @@ __vsyslog_internal (int pri, const char *fmt, va_list ap,
 	  cl = __vsnprintf_internal (buf + l, bufsize - l + 1, fmt, apc,
 				     mode_flags);
 	  va_end (apc);
-
+    DIAG_POP_NEEDS_COMMENT_CLANG;
 	  if (cl != vl)
 	    goto out;
 	}
@@ -273,8 +282,13 @@ __vsyslog_internal (int pri, const char *fmt, va_list ap,
 
   /* Output to stderr if requested. */
   if (LogStat & LOG_PERROR)
-    __dprintf (STDERR_FILENO, "%s%s", buf + msgoff,
-	       "\n" + (buf[bufsize - 1] == '\n'));
+    {
+      DIAG_PUSH_NEEDS_COMMENT_CLANG;
+      DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wstring-plus-int");
+      __dprintf (STDERR_FILENO, "%s%s", buf + msgoff,
+		 "\n" + (buf[bufsize - 1] == '\n'));
+      DIAG_POP_NEEDS_COMMENT_CLANG;
+    }
 
   /* Get connected, output the message to the local logger.  */
   if (!connected)
-- 
2.19.1