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 #pragma weak _getustack = getustack 28 #pragma weak _setustack = setustack 29 30 #include "lint.h" 31 #include <ucontext.h> 32 #include <sys/syscall.h> 33 34 /* 35 * __getcontext() must be implemented in assembler, as opposed to 36 * the other members of the SYS_context family (see __getcontext.s) 37 * because we must be careful to get the precise context of the caller. 38 */ 39 40 int 41 __setcontext(const ucontext_t *ucp) 42 { 43 return (syscall(SYS_context, 1, ucp)); 44 } 45 46 int 47 getustack(stack_t **spp) 48 { 49 return (syscall(SYS_context, 2, spp)); 50 } 51 52 int 53 setustack(stack_t *sp) 54 { 55 return (syscall(SYS_context, 3, sp)); 56 } 57