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root/usr/lib/libc/stdlib/abort.c

DEFINITIONS

1. abort

   1 /*
   2  * Copyright (c) 1985, 1993
   3  *      The Regents of the University of California.  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  */
  30 #include <signal.h>
  31 #include <stdlib.h>
  32 #include <stddef.h>
  33 #include <unistd.h>
  35 void
abort()
  37 {
  38 #ifdef _STANDALONE
exit(1);
  40 #else
sigset_t mask;
sigfillset(&mask);
  44         /*
  45          * don't block SIGABRT to give any handler a chance; we ignore
  46          * any errors -- X311J doesn't allow abort to return anyway.
  47          */
sigdelset(&mask, SIGABRT);
  49         (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
  50         (void)kill(getpid(), SIGABRT);
  52         /*
  53          * if SIGABRT ignored, or caught and the handler returns, do
  54          * it again, only harder.
  55          */
  56         (void)signal(SIGABRT, SIG_DFL);
  57         (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
  58         (void)kill(getpid(), SIGABRT);
exit(1);
  60 #endif
  61 }