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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 /ports/sysdeps/tile
parentd0501bfbe228897c17875fcead8809d017135d6f (diff)
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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 'ports/sysdeps/tile')
-rw-r--r--ports/sysdeps/tile/dl-machine.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/ports/sysdeps/tile/dl-machine.h b/ports/sysdeps/tile/dl-machine.h
index 4e78bb8701..05aa2d826c 100644
--- a/ports/sysdeps/tile/dl-machine.h
+++ b/ports/sysdeps/tile/dl-machine.h
@@ -624,8 +624,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
           strtab = (const char *) D_PTR (map,l_info[DT_STRTAB]);
           _dl_error_printf ("%s: Symbol `%s' has different size in shared"
                             " object, consider re-linking\n",
-                            rtld_progname ?: "<program name unknown>",
-                            strtab + refsym->st_name);
+                            RTLD_PROGNAME, strtab + refsym->st_name);
         }
       memcpy (reloc_addr_arg, (void *) value,
               MIN (sym->st_size, refsym->st_size));