2014-01-01 12:03:15 +01:00
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/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
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1996-12-04 02:41:39 +01:00
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This file is part of the GNU C Library.
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1995-02-18 02:27:10 +01:00
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1996-12-04 02:41:39 +01:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 06:58:11 +02:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1995-02-18 02:27:10 +01:00
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1996-12-04 02:41:39 +01:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 06:58:11 +02:00
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Lesser General Public License for more details.
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1995-02-18 02:27:10 +01:00
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2001-07-06 06:58:11 +02:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-10 00:18:22 +01:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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1995-02-18 02:27:10 +01:00
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#include <assert.h>
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2009-06-16 01:17:09 +02:00
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#include <atomic.h>
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2011-05-15 06:34:48 +02:00
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#include <ldsodefs.h>
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2001-08-17 06:49:12 +02:00
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#include <libintl.h>
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1995-02-18 02:27:10 +01:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <sysdep.h>
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2001-12-06 09:49:08 +01:00
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#include <unistd.h>
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2011-05-15 06:34:48 +02:00
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#include <sys/mman.h>
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1995-02-18 02:27:10 +01:00
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2001-08-11 11:25:47 +02:00
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extern const char *__progname;
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1995-02-18 02:27:10 +01:00
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2011-09-10 20:34:15 +02:00
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#include <wchar.h>
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#include <libio/iolibio.h>
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2012-05-23 13:33:15 +02:00
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#define fflush(s) _IO_fflush (s)
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1998-07-16 13:44:36 +02:00
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1995-02-18 02:27:10 +01:00
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/* This function, when passed a string containing an asserted
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expression, a filename, and a line number, prints a message
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on the standard error stream of the form:
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2011-05-15 06:34:48 +02:00
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a.c:10: foobar: Assertion `a == b' failed.
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1995-02-18 02:27:10 +01:00
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It then aborts program execution via a call to `abort'. */
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#ifdef FATAL_PREPARE_INCLUDE
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1998-07-16 13:44:36 +02:00
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# include FATAL_PREPARE_INCLUDE
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1995-02-18 02:27:10 +01:00
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#endif
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2009-06-16 01:17:09 +02:00
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1995-02-18 02:27:10 +01:00
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void
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2011-05-15 06:34:48 +02:00
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__assert_fail_base (const char *fmt, const char *assertion, const char *file,
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unsigned int line, const char *function)
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1995-02-18 02:27:10 +01:00
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{
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2011-05-15 06:34:48 +02:00
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char *str;
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2001-08-17 06:49:12 +02:00
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1995-02-18 02:27:10 +01:00
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#ifdef FATAL_PREPARE
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FATAL_PREPARE;
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#endif
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2011-05-15 06:34:48 +02:00
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int total;
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if (__asprintf (&str, fmt,
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2001-12-06 09:49:08 +01:00
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__progname, __progname[0] ? ": " : "",
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file, line,
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function ? function : "", function ? ": " : "",
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2011-05-15 06:34:48 +02:00
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assertion, &total) >= 0)
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2001-12-06 09:49:08 +01:00
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{
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/* Print the message. */
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2011-05-15 06:34:48 +02:00
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(void) __fxprintf (NULL, "%s", str);
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2001-12-06 09:49:08 +01:00
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(void) fflush (stderr);
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1995-02-18 02:27:10 +01:00
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2011-05-15 06:34:48 +02:00
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total = (total + 1 + GLRO(dl_pagesize) - 1) & ~(GLRO(dl_pagesize) - 1);
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struct abort_msg_s *buf = __mmap (NULL, total, PROT_READ | PROT_WRITE,
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MAP_ANON | MAP_PRIVATE, -1, 0);
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2014-02-10 14:45:42 +01:00
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if (__glibc_likely (buf != MAP_FAILED))
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2011-05-15 06:34:48 +02:00
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{
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buf->size = total;
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strcpy (buf->msg, str);
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/* We have to free the old buffer since the application might
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catch the SIGABRT signal. */
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struct abort_msg_s *old = atomic_exchange_acq (&__abort_msg, buf);
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if (old != NULL)
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__munmap (old, old->size);
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}
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free (str);
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2001-12-06 09:49:08 +01:00
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}
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else
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2002-04-15 07:35:10 +02:00
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{
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/* At least print a minimal message. */
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static const char errstr[] = "Unexpected error.\n";
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__libc_write (STDERR_FILENO, errstr, sizeof (errstr) - 1);
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}
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2001-08-17 06:49:12 +02:00
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1995-02-18 02:27:10 +01:00
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abort ();
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}
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2011-05-15 06:34:48 +02:00
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#undef __assert_fail
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void
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__assert_fail (const char *assertion, const char *file, unsigned int line,
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const char *function)
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{
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__assert_fail_base (_("%s%s%s:%u: %s%sAssertion `%s' failed.\n%n"),
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assertion, file, line, function);
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}
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2002-08-03 20:43:13 +02:00
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hidden_def(__assert_fail)
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