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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 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 #pragma weak _private_setustack = _setustack 32 #pragma weak __setcontext_syscall = __setcontext 33 34 #include "synonyms.h" 35 #include <ucontext.h> 36 #include <sys/syscall.h> 37 38 /* 39 * __getcontext() must be implemented in assembler, as opposed to 40 * the other members of the SYS_context family (see __getcontext.s) 41 * because we must be careful to get the precise context of the caller. 42 */ 43 44 int 45 __setcontext(const ucontext_t *ucp) 46 { 47 return (syscall(SYS_context, 1, ucp)); 48 } 49 50 int 51 getustack(stack_t **spp) 52 { 53 return (syscall(SYS_context, 2, spp)); 54 } 55 56 int 57 setustack(stack_t *sp) 58 { 59 return (syscall(SYS_context, 3, sp)); 60 } 61