1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 28 /* Copyright (c) 1988 AT&T */ 29 /* All Rights Reserved */ 30 31 /* 32 * Copyright 2023 Oxide Computer Company 33 */ 34 35 #include "lint.h" 36 #include <sys/types.h> 37 #include <sys/ucontext.h> 38 #include <setjmp.h> 39 #include <ucontext.h> 40 #include <strings.h> 41 #include <upanic.h> 42 #include "libc.h" 43 44 #pragma weak _siglongjmp = siglongjmp 45 46 void 47 siglongjmp(sigjmp_buf env, int val) 48 { 49 const char *msg = "siglongjmp(): setcontext() returned"; 50 ucontext_t *ucp = (ucontext_t *)env; 51 52 if (val) 53 ucp->uc_mcontext.gregs[EAX] = val; 54 else 55 ucp->uc_mcontext.gregs[EAX] = 1; 56 57 /* 58 * While unlikely, it is possible that setcontext() may fail for some 59 * reason. If that happens, we will kill the process. 60 */ 61 (void) setcontext(ucp); 62 upanic(msg, strlen(msg) + 1); 63 } 64