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      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 	.file	"__getcontext.s"
     28 
     29 /*
     30  * __getcontext() must be implemented in assembler, as opposed
     31  * to the other members of the SYS_context family (see ucontext.c)
     32  * because we must be careful to get the precise context of the caller.
     33  */
     34 
     35 #include "SYS.h"
     36 
     37 	ENTRY(__getcontext)
     38 	popl	%edx
     39 	pushl	$0
     40 	pushl	%edx
     41 	SYSTRAP_RVAL1(context)
     42 	popl	%edx
     43 	movl	%edx, 0(%esp)
     44 	SYSCERROR
     45 	RET
     46 	SET_SIZE(__getcontext)
     47