1/*
2 * Copyright (c) 1985 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <signal.h>
31#include <stdlib.h>
32#include <unistd.h>
33
34#ifdef __arm__
35extern "C" __LIBC_HIDDEN__ void __libc_android_abort()
36#else
37void abort()
38#endif
39{
40  // Don't block SIGABRT to give any signal handler a chance; we ignore
41  // any errors -- X311J doesn't allow abort to return anyway.
42  sigset_t mask;
43  sigfillset(&mask);
44  sigdelset(&mask, SIGABRT);
45  sigprocmask(SIG_SETMASK, &mask, NULL);
46
47  raise(SIGABRT);
48
49  // If SIGABRT ignored, or caught and the handler returns,
50  // remove the SIGABRT signal handler and raise SIGABRT again.
51  struct sigaction sa;
52  sa.sa_handler = SIG_DFL;
53  sa.sa_flags   = SA_RESTART;
54  sigemptyset(&sa.sa_mask);
55  sigaction(SIGABRT, &sa, &sa);
56  sigprocmask(SIG_SETMASK, &mask, NULL);
57  raise(SIGABRT);
58  _exit(1);
59}
60