17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7257d1b4Sraf * Common Development and Distribution License (the "License").
6*7257d1b4Sraf * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
21*7257d1b4Sraf
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
30*7257d1b4Sraf #include "lint.h"
317c478bd9Sstevel@tonic-gate #include "file64.h"
327c478bd9Sstevel@tonic-gate #include <signal.h>
337c478bd9Sstevel@tonic-gate #include <stdlib.h>
347c478bd9Sstevel@tonic-gate #include <unistd.h>
357c478bd9Sstevel@tonic-gate #include <stdio.h>
367c478bd9Sstevel@tonic-gate #include "stdiom.h"
377c478bd9Sstevel@tonic-gate
387c478bd9Sstevel@tonic-gate static int pass = 0; /* counts how many times abort has been called */
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate /*
417c478bd9Sstevel@tonic-gate * abort() - terminate current process with dump via SIGABRT
427c478bd9Sstevel@tonic-gate */
437c478bd9Sstevel@tonic-gate void
abort(void)447c478bd9Sstevel@tonic-gate abort(void)
457c478bd9Sstevel@tonic-gate {
467c478bd9Sstevel@tonic-gate sigset_t set;
477c478bd9Sstevel@tonic-gate struct sigaction act;
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate if (!sigaction(SIGABRT, NULL, &act) &&
507c478bd9Sstevel@tonic-gate act.sa_handler != SIG_DFL && act.sa_handler != SIG_IGN) {
517c478bd9Sstevel@tonic-gate /*
527c478bd9Sstevel@tonic-gate * User handler is installed, invokes user handler before
537c478bd9Sstevel@tonic-gate * taking default action.
547c478bd9Sstevel@tonic-gate *
557c478bd9Sstevel@tonic-gate * Send SIGABRT, unblock SIGABRT if blocked.
567c478bd9Sstevel@tonic-gate * If there is pending signal SIGABRT, we only need to unblock
577c478bd9Sstevel@tonic-gate * SIGABRT.
587c478bd9Sstevel@tonic-gate */
597c478bd9Sstevel@tonic-gate if (!sigprocmask(SIG_SETMASK, NULL, &set) &&
607c478bd9Sstevel@tonic-gate sigismember(&set, SIGABRT)) {
617c478bd9Sstevel@tonic-gate if (!sigpending(&set) && !sigismember(&set, SIGABRT))
627c478bd9Sstevel@tonic-gate (void) raise(SIGABRT);
637c478bd9Sstevel@tonic-gate (void) sigrelse(SIGABRT);
647c478bd9Sstevel@tonic-gate } else
657c478bd9Sstevel@tonic-gate (void) raise(SIGABRT);
667c478bd9Sstevel@tonic-gate }
677c478bd9Sstevel@tonic-gate
687c478bd9Sstevel@tonic-gate if (++pass == 1)
697c478bd9Sstevel@tonic-gate __cleanup();
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate for (;;) {
727c478bd9Sstevel@tonic-gate (void) signal(SIGABRT, SIG_DFL);
737c478bd9Sstevel@tonic-gate (void) sigrelse(SIGABRT);
747c478bd9Sstevel@tonic-gate (void) raise(SIGABRT);
757c478bd9Sstevel@tonic-gate }
767c478bd9Sstevel@tonic-gate }
77