10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*6812Sraf * Common Development and Distribution License (the "License").
6*6812Sraf * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate *
80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate * See the License for the specific language governing permissions
110Sstevel@tonic-gate * and limitations under the License.
120Sstevel@tonic-gate *
130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate *
190Sstevel@tonic-gate * CDDL HEADER END
200Sstevel@tonic-gate */
21*6812Sraf
220Sstevel@tonic-gate /*
23*6812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
270Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
280Sstevel@tonic-gate /* All Rights Reserved */
290Sstevel@tonic-gate
30*6812Sraf #pragma ident "%Z%%M% %I% %E% SMI"
310Sstevel@tonic-gate
32*6812Sraf #include "lint.h"
330Sstevel@tonic-gate #include "file64.h"
340Sstevel@tonic-gate #include <signal.h>
350Sstevel@tonic-gate #include <stdlib.h>
360Sstevel@tonic-gate #include <unistd.h>
370Sstevel@tonic-gate #include <stdio.h>
380Sstevel@tonic-gate #include "stdiom.h"
390Sstevel@tonic-gate
400Sstevel@tonic-gate static int pass = 0; /* counts how many times abort has been called */
410Sstevel@tonic-gate
420Sstevel@tonic-gate /*
430Sstevel@tonic-gate * abort() - terminate current process with dump via SIGABRT
440Sstevel@tonic-gate */
450Sstevel@tonic-gate void
abort(void)460Sstevel@tonic-gate abort(void)
470Sstevel@tonic-gate {
480Sstevel@tonic-gate sigset_t set;
490Sstevel@tonic-gate struct sigaction act;
500Sstevel@tonic-gate
510Sstevel@tonic-gate if (!sigaction(SIGABRT, NULL, &act) &&
520Sstevel@tonic-gate act.sa_handler != SIG_DFL && act.sa_handler != SIG_IGN) {
530Sstevel@tonic-gate /*
540Sstevel@tonic-gate * User handler is installed, invokes user handler before
550Sstevel@tonic-gate * taking default action.
560Sstevel@tonic-gate *
570Sstevel@tonic-gate * Send SIGABRT, unblock SIGABRT if blocked.
580Sstevel@tonic-gate * If there is pending signal SIGABRT, we only need to unblock
590Sstevel@tonic-gate * SIGABRT.
600Sstevel@tonic-gate */
610Sstevel@tonic-gate if (!sigprocmask(SIG_SETMASK, NULL, &set) &&
620Sstevel@tonic-gate sigismember(&set, SIGABRT)) {
630Sstevel@tonic-gate if (!sigpending(&set) && !sigismember(&set, SIGABRT))
640Sstevel@tonic-gate (void) raise(SIGABRT);
650Sstevel@tonic-gate (void) sigrelse(SIGABRT);
660Sstevel@tonic-gate } else
670Sstevel@tonic-gate (void) raise(SIGABRT);
680Sstevel@tonic-gate }
690Sstevel@tonic-gate
700Sstevel@tonic-gate if (++pass == 1)
710Sstevel@tonic-gate __cleanup();
720Sstevel@tonic-gate
730Sstevel@tonic-gate for (;;) {
740Sstevel@tonic-gate (void) signal(SIGABRT, SIG_DFL);
750Sstevel@tonic-gate (void) sigrelse(SIGABRT);
760Sstevel@tonic-gate (void) raise(SIGABRT);
770Sstevel@tonic-gate }
780Sstevel@tonic-gate }
79