abort.c revision 19189
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. 131573Srgrimes * 3. All advertising materials mentioning features or use of this software 141573Srgrimes * must display the following acknowledgement: 151573Srgrimes * This product includes software developed by the University of 161573Srgrimes * California, Berkeley and its contributors. 171573Srgrimes * 4. Neither the name of the University nor the names of its contributors 181573Srgrimes * may be used to endorse or promote products derived from this software 191573Srgrimes * without specific prior written permission. 201573Srgrimes * 211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311573Srgrimes * SUCH DAMAGE. 321573Srgrimes */ 331573Srgrimes 341573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 351573Srgrimesstatic char sccsid[] = "@(#)abort.c 8.1 (Berkeley) 6/4/93"; 361573Srgrimes#endif /* LIBC_SCCS and not lint */ 371573Srgrimes 3811668Sphk#include <signal.h> 391573Srgrimes#include <stdlib.h> 401573Srgrimes#include <stddef.h> 411573Srgrimes#include <unistd.h> 4213545Sjulian#ifdef _THREAD_SAFE 4313545Sjulian#include <pthread.h> 4413545Sjulian#include "pthread_private.h" 4513545Sjulian#endif 461573Srgrimes 4719189Salexvoid (*__cleanup)(); 4819189Salex 491573Srgrimesvoid 501573Srgrimesabort() 511573Srgrimes{ 521573Srgrimes sigset_t mask; 531573Srgrimes 5419189Salex /* 5519189Salex * POSIX requires we flush stdio buffers on abort 5619189Salex */ 5719189Salex if (__cleanup) 5819189Salex (*__cleanup)(); 5919189Salex 601573Srgrimes sigfillset(&mask); 611573Srgrimes /* 621573Srgrimes * don't block SIGABRT to give any handler a chance; we ignore 631573Srgrimes * any errors -- X311J doesn't allow abort to return anyway. 641573Srgrimes */ 651573Srgrimes sigdelset(&mask, SIGABRT); 6613545Sjulian#ifdef _THREAD_SAFE 6713545Sjulian (void) _thread_sys_sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 6813545Sjulian#else 691573Srgrimes (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 7013545Sjulian#endif 711573Srgrimes (void)kill(getpid(), SIGABRT); 721573Srgrimes 731573Srgrimes /* 741573Srgrimes * if SIGABRT ignored, or caught and the handler returns, do 751573Srgrimes * it again, only harder. 761573Srgrimes */ 7713545Sjulian#ifdef _THREAD_SAFE 7813545Sjulian (void) _thread_sys_signal(SIGABRT, SIG_DFL); 7913545Sjulian (void) _thread_sys_sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 8013545Sjulian#else 811573Srgrimes (void)signal(SIGABRT, SIG_DFL); 821573Srgrimes (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 8313545Sjulian#endif 841573Srgrimes (void)kill(getpid(), SIGABRT); 851573Srgrimes exit(1); 861573Srgrimes} 87