sysdeps/generic/abort.c

   1 /* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #include <signal.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <signal.h>
  25
  26 /* Cause an abnormal program termination with core-dump.  */
  27 void
  28 DEFUN_VOID(abort)
  29 {
  30   sigset_t sigs;
  31
  32   if (__sigemptyset(&sigs) == 0 &&
  33       __sigaddset(&sigs, SIGABRT) == 0)
  34     (void) __sigprocmask(SIG_UNBLOCK, &sigs, (sigset_t *) NULL);
  35
  36   while (1)
  37     if (raise (SIGABRT))
  38       /* If we can't signal ourselves, exit.  */
  39       _exit (127);
  40   /* If we signal ourselves and are still alive,
  41      or can't exit, loop forever.  */
  42 }