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getcontext.S revision 1.3.30.1 
      1  1.3.30.1     yamt /*	$NetBSD: getcontext.S,v 1.3.30.1 2008/05/18 12:30:12 yamt Exp $	*/
      2       1.2  thorpej 
      3       1.2  thorpej /*-
      4       1.2  thorpej  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5       1.2  thorpej  * All rights reserved.
      6       1.2  thorpej  *
      7       1.2  thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8       1.2  thorpej  * by Klaus Klein.
      9       1.2  thorpej  *
     10       1.2  thorpej  * Redistribution and use in source and binary forms, with or without
     11       1.2  thorpej  * modification, are permitted provided that the following conditions
     12       1.2  thorpej  * are met:
     13       1.2  thorpej  * 1. Redistributions of source code must retain the above copyright
     14       1.2  thorpej  *    notice, this list of conditions and the following disclaimer.
     15       1.2  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.2  thorpej  *    notice, this list of conditions and the following disclaimer in the
     17       1.2  thorpej  *    documentation and/or other materials provided with the distribution.
     18       1.2  thorpej  *
     19       1.2  thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20       1.2  thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21       1.2  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22       1.2  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23       1.2  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24       1.2  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25       1.2  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26       1.2  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27       1.2  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28       1.2  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29       1.2  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     30       1.2  thorpej  */
     31       1.2  thorpej 
     32       1.2  thorpej #include "SYS.h"
     33       1.2  thorpej 
     34       1.2  thorpej #if defined(SYSLIBC_SCCS) && !defined(lint)
     35       1.2  thorpej 	.text
     36  1.3.30.1     yamt 	.asciz "$NetBSD: getcontext.S,v 1.3.30.1 2008/05/18 12:30:12 yamt Exp $"
     37       1.2  thorpej #endif /* SYSLIBC_SCCS && !lint */
     38       1.2  thorpej 
     39       1.2  thorpej #ifdef WEAK_ALIAS
     40       1.2  thorpej WEAK_ALIAS(getcontext, _getcontext)
     41       1.2  thorpej #endif
     42       1.2  thorpej 
     43       1.2  thorpej ENTRY(_getcontext)
     44       1.3   kleink 	mr	%r5,%r3				# must save pointer
     45       1.3   kleink 	li	%r0,SYS_getcontext
     46       1.2  thorpej 	sc
     47       1.2  thorpej 	bso	1f
     48       1.3   kleink 	mflr	%r4
     49       1.3   kleink 	stw	%r4,(48 + 34 * 4)(%r5)		# saved pc <- lr
     50       1.3   kleink 	stw	%r3,(48 +  3 * 4)(%r5)		# arrange for return value 0
     51       1.2  thorpej 	blr
     52       1.2  thorpej 1:
     53       1.2  thorpej 	b	PIC_PLT(_C_LABEL(__cerror))
     54