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 ident "%Z%%M% %I% %E% SMI" 28 29 #pragma weak _getustack = getustack 30 #pragma weak _setustack = setustack 31 32 #include "lint.h" 33 #include <ucontext.h> 34 #include <sys/syscall.h> 35 36 /* 37 * __getcontext() must be implemented in assembler, as opposed to 38 * the other members of the SYS_context family (see __getcontext.s) 39 * because we must be careful to get the precise context of the caller. 40 */ 41 42 int 43 __setcontext(const ucontext_t *ucp) 44 { 45 return (syscall(SYS_context, 1, ucp)); 46 } 47 48 int 49 getustack(stack_t **spp) 50 { 51 return (syscall(SYS_context, 2, spp)); 52 } 53 54 int 55 setustack(stack_t *sp) 56 { 57 return (syscall(SYS_context, 3, sp)); 58 } 59