11573Srgrimes/* 21573Srgrimes * Copyright (c) 1985, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 13251069Semaste * 3. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)abort.c 8.1 (Berkeley) 6/4/93"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3392986Sobrien#include <sys/cdefs.h> 3492986Sobrien__FBSDID("$FreeBSD$"); 351573Srgrimes 36118988Sdavidxu#include "namespace.h" 3711668Sphk#include <signal.h> 381573Srgrimes#include <stdlib.h> 391573Srgrimes#include <stddef.h> 401573Srgrimes#include <unistd.h> 4113545Sjulian#include <pthread.h> 42118988Sdavidxu#include "un-namespace.h" 431573Srgrimes 44150040Sstefanf#include "libc_private.h" 4519189Salex 461573Srgrimesvoid 471573Srgrimesabort() 481573Srgrimes{ 4971579Sdeischen struct sigaction act; 501573Srgrimes 5119189Salex /* 5299735Swollman * POSIX requires we flush stdio buffers on abort. 5399735Swollman * XXX ISO C requires that abort() be async-signal-safe. 5419189Salex */ 5519189Salex if (__cleanup) 5619189Salex (*__cleanup)(); 5719189Salex 5871579Sdeischen sigfillset(&act.sa_mask); 591573Srgrimes /* 6099735Swollman * Don't block SIGABRT to give any handler a chance; we ignore 6199735Swollman * any errors -- ISO C doesn't allow abort to return anyway. 621573Srgrimes */ 6371579Sdeischen sigdelset(&act.sa_mask, SIGABRT); 64287480Skib (void)__libc_sigprocmask(SIG_SETMASK, &act.sa_mask, NULL); 65118988Sdavidxu (void)raise(SIGABRT); 661573Srgrimes 671573Srgrimes /* 6899735Swollman * If SIGABRT was ignored, or caught and the handler returns, do 691573Srgrimes * it again, only harder. 701573Srgrimes */ 7171579Sdeischen act.sa_handler = SIG_DFL; 7271579Sdeischen act.sa_flags = 0; 7371579Sdeischen sigfillset(&act.sa_mask); 74287480Skib (void)__libc_sigaction(SIGABRT, &act, NULL); 7571579Sdeischen sigdelset(&act.sa_mask, SIGABRT); 76287480Skib (void)__libc_sigprocmask(SIG_SETMASK, &act.sa_mask, NULL); 77118988Sdavidxu (void)raise(SIGABRT); 781573Srgrimes exit(1); 791573Srgrimes} 80