diff options
Diffstat (limited to 'debug/fortify_fail.c')
-rw-r--r-- | debug/fortify_fail.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/debug/fortify_fail.c b/debug/fortify_fail.c index 71980779bc..ef6a39d151 100644 --- a/debug/fortify_fail.c +++ b/debug/fortify_fail.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2007-2016 Free Software Foundation, Inc. +/* Copyright (C) 2007-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -17,17 +17,32 @@ #include <stdio.h> #include <stdlib.h> +#include <stdbool.h> extern char **__libc_argv attribute_hidden; void -__attribute__ ((noreturn)) internal_function -__fortify_fail (const char *msg) +__attribute__ ((noreturn)) +__fortify_fail_abort (_Bool need_backtrace, const char *msg) { - /* The loop is added only to keep gcc happy. */ + /* The loop is added only to keep gcc happy. Don't pass down + __libc_argv[0] if we aren't doing backtrace since __libc_argv[0] + may point to the corrupted stack. */ while (1) - __libc_message (2, "*** %s ***: %s terminated\n", - msg, __libc_argv[0] ?: "<unknown>"); + __libc_message (need_backtrace ? (do_abort | do_backtrace) : do_abort, + "*** %s ***: %s terminated\n", + msg, + (need_backtrace && __libc_argv[0] != NULL + ? __libc_argv[0] : "<unknown>")); } + +void +__attribute__ ((noreturn)) +__fortify_fail (const char *msg) +{ + __fortify_fail_abort (true, msg); +} + libc_hidden_def (__fortify_fail) +libc_hidden_def (__fortify_fail_abort) |