[binutils-gdb/binutils-2_45-branch] gas: support --gsframe=no

[Sam James]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6c0b1a20b61396eb2ae1c19fcb8ac29d70b53440

commit 6c0b1a20b61396eb2ae1c19fcb8ac29d70b53440
Author: Sam James <sam@gentoo.org>
Date:   Thu Jul 3 12:53:22 2025 +0100

    gas: support --gsframe=no
    
    Being able to explicitly disable SFrames on the command line is useful,
    especially when looking at a gas that enables SFrames by default. The
    binutils testsuite will benefit from this as there's testcases that don't
    expect their presence.
    
    In summary:
    * Nothing is passed       => no SFrames (no change from before)
    * --gsframe is passed     => SFrames    (no change from before)
    * --gsframe=yes is passed => SFrames    (previously rejected)
    * --gsframe-no  is passed => no SFrames (previously rejected)
    
            PR gas/33125
            * gas/as.c (parse_args): Accept --gsframe=no, --gsframe=yes.
    
    (cherry picked from commit 8aad677a12832885acd5be1de8f41e740b8e713d)

Diff:
---
 gas/as.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/gas/as.c b/gas/as.c
index 78970ff2714..ce89d6f5aa7 100644
--- a/gas/as.c
+++ b/gas/as.c
@@ -311,7 +311,8 @@ Options:\n\
   fprintf (stream, _("\
                           generate GNU Build notes if none are present in the input\n"));
   fprintf (stream, _("\
-  --gsframe               generate SFrame stack trace information\n"));
+  --gsframe=[no|yes]      whether to generate SFrame stack trace information\n\
+                          (default: no)\n"));
 # if defined (TARGET_USE_SCFI) && defined (TARGET_USE_GINSN)
   fprintf (stream, _("\
   --scfi=experimental     Synthesize DWARF CFI for hand-written asm\n\
@@ -539,7 +540,7 @@ parse_args (int * pargc, char *** pargv)
     ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON}
     ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST}
     ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES}
-    ,{"gsframe", no_argument, NULL, OPTION_SFRAME}
+    ,{"gsframe", optional_argument, NULL, OPTION_SFRAME}
 # if defined (TARGET_USE_SCFI) && defined (TARGET_USE_GINSN)
     ,{"scfi", required_argument, NULL, OPTION_SCFI}
 # endif
@@ -1038,7 +1039,17 @@ This program has absolutely no warranty.\n"));
 	  break;
 
 	case OPTION_SFRAME:
-	  flag_gen_sframe = 1;
+	  if (optarg)
+	    {
+	    if (strcasecmp (optarg, "no") == 0)
+	      flag_gen_sframe = 0;
+	    else if (strcasecmp (optarg, "yes") == 0)
+	      flag_gen_sframe = 1;
+	    else
+	      as_fatal (_("Invalid --gsframe option: `%s'"), optarg);
+	    }
+	  else
+	    flag_gen_sframe = 1;
 	  break;
 
 #endif /* OBJ_ELF */