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authorSiddhesh Poyarekar <siddhesh@redhat.com>2013-05-29 21:30:20 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2013-05-29 21:34:12 +0530
commitb937534868c8d7aec3b6d645bf5fd657bbfccd42 (patch)
tree18936faaea13f35bcaf698f97447752c0e1c4567 /sysdeps/x86_64/dl-machine.h
parentd0501bfbe228897c17875fcead8809d017135d6f (diff)
downloadglibc-b937534868c8d7aec3b6d645bf5fd657bbfccd42.tar.gz
Avoid crashing in LD_DEBUG when program name is unavailable
Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users.
Diffstat (limited to 'sysdeps/x86_64/dl-machine.h')
-rw-r--r--sysdeps/x86_64/dl-machine.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h
index 4768c69544..116fed1b07 100644
--- a/sysdeps/x86_64/dl-machine.h
+++ b/sysdeps/x86_64/dl-machine.h
@@ -430,9 +430,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
# endif
strtab = (const char *) D_PTR (map, l_info[DT_STRTAB]);
- _dl_error_printf (fmt,
- rtld_progname ?: "<program name unknown>",
- strtab + refsym->st_name);
+ _dl_error_printf (fmt, RTLD_PROGNAME, strtab + refsym->st_name);
}
break;
# ifndef RESOLVE_CONFLICT_FIND_MAP