-/* Copyright (C) 1991, 1994, 1995, 1996, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1994-1996,1998,2001,2002,2005,2009,2011
+ 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
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#include <assert.h>
+#include <atomic.h>
+#include <ldsodefs.h>
+#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysdep.h>
+#include <unistd.h>
+#include <sys/mman.h>
-const char *__assert_program_name;
+extern const char *__progname;
-#ifdef USE_IN_LIBIO
-# define fflush(s) _IO_fflush (s)
-#endif
+#include <wchar.h>
+#include <libio/iolibio.h>
+#define fflush(s) INTUSE(_IO_fflush) (s)
/* This function, when passed a string containing an asserted
expression, a filename, and a line number, prints a message
on the standard error stream of the form:
- a.c:10: foobar: Assertion `a == b' failed.
+ a.c:10: foobar: Assertion `a == b' failed.
It then aborts program execution via a call to `abort'. */
#ifdef FATAL_PREPARE_INCLUDE
# include FATAL_PREPARE_INCLUDE
#endif
+
void
-__assert_fail (const char *assertion, const char *file, unsigned int line,
- const char *function)
+__assert_fail_base (const char *fmt, const char *assertion, const char *file,
+ unsigned int line, const char *function)
{
+ char *str;
+
#ifdef FATAL_PREPARE
FATAL_PREPARE;
#endif
- /* Print the message. */
- (void) fprintf (stderr, _("%s%s%s:%u: %s%sAssertion `%s' failed.\n"),
- __assert_program_name ? __assert_program_name : "",
- __assert_program_name ? ": " : "",
+ int total;
+ if (__asprintf (&str, fmt,
+ __progname, __progname[0] ? ": " : "",
file, line,
function ? function : "", function ? ": " : "",
- assertion);
- (void) fflush (stderr);
+ assertion, &total) >= 0)
+ {
+ /* Print the message. */
+ (void) __fxprintf (NULL, "%s", str);
+ (void) fflush (stderr);
+
+ total = (total + 1 + GLRO(dl_pagesize) - 1) & ~(GLRO(dl_pagesize) - 1);
+ struct abort_msg_s *buf = __mmap (NULL, total, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_PRIVATE, -1, 0);
+ if (__builtin_expect (buf != MAP_FAILED, 1))
+ {
+ buf->size = total;
+ strcpy (buf->msg, str);
+
+ /* We have to free the old buffer since the application might
+ catch the SIGABRT signal. */
+ struct abort_msg_s *old = atomic_exchange_acq (&__abort_msg, buf);
+
+ if (old != NULL)
+ __munmap (old, old->size);
+ }
+
+ free (str);
+ }
+ else
+ {
+ /* At least print a minimal message. */
+ static const char errstr[] = "Unexpected error.\n";
+ __libc_write (STDERR_FILENO, errstr, sizeof (errstr) - 1);
+ }
abort ();
}
-#ifdef HAVE_GNU_LD
-
-#include <string.h>
-static void
-set_progname (int argc, char **argv, char **envp)
+#undef __assert_fail
+void
+__assert_fail (const char *assertion, const char *file, unsigned int line,
+ const char *function)
{
- char *p;
-
- if (argv && argv[0])
- {
- p = strrchr (argv[0], '/');
- if (p == NULL)
- __assert_program_name = argv[0];
- else
- __assert_program_name = p + 1;
- }
-
- (void) &set_progname; /* Avoid "defined but not used" warning. */
+ __assert_fail_base (_("%s%s%s:%u: %s%sAssertion `%s' failed.\n%n"),
+ assertion, file, line, function);
}
-
-text_set_element (__libc_subinit, set_progname);
-
-#endif
+hidden_def(__assert_fail)