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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.
This commit is contained in:
Siddhesh Poyarekar
2013-05-29 21:30:20 +05:30
parent d0501bfbe2
commit b937534868
41 changed files with 220 additions and 103 deletions

View File

@@ -237,7 +237,7 @@ _dl_fini (void)
if (__builtin_expect (GLRO(dl_debug_mask)
& DL_DEBUG_IMPCALLS, 0))
_dl_debug_printf ("\ncalling fini: %s [%lu]\n\n",
l->l_name[0] ? l->l_name : rtld_progname,
DSO_FILENAME (l->l_name),
ns);
/* First see whether an array is given. */