1/* $OpenBSD: sigsetjmp.S,v 1.7 2005/08/07 11:30:38 espie Exp $ */
2/*-
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <machine/asm.h>
35
36ENTRY(sigsetjmp)
37	movl	4(%esp),%ecx
38	movl	8(%esp),%eax
39	movl	%eax,28(%ecx)
40	testl	%eax,%eax
41	jz	1f
42
43	PIC_PROLOGUE
44	pushl	$0
45#ifdef PIC
46	call	PIC_PLT(_C_LABEL(sigblock))
47#else
48	call	_C_LABEL(sigblock)
49#endif
50	addl	$4,%esp
51	PIC_EPILOGUE
52
53	movl	4(%esp),%ecx
54	movl	%eax,24(%ecx)
551:	movl	0(%esp),%edx
56	movl	%edx, 0(%ecx)
57	movl	%ebx, 4(%ecx)
58	movl	%esp, 8(%ecx)
59	movl	%ebp,12(%ecx)
60	movl	%esi,16(%ecx)
61	movl	%edi,20(%ecx)
62	xorl	%eax,%eax
63	ret
64
65ENTRY(siglongjmp)
66	movl	4(%esp),%edx
67	cmpl	$0,28(%edx)
68	jz	1f
69
70	PIC_PROLOGUE
71	pushl	24(%edx)
72#ifdef PIC
73	call	PIC_PLT(_C_LABEL(sigsetmask))
74#else
75	call	_C_LABEL(sigsetmask)
76#endif
77	addl	$4,%esp
78	PIC_EPILOGUE
79
801:	movl	4(%esp),%edx
81	movl	8(%esp),%eax
82	movl	0(%edx),%ecx
83	movl	4(%edx),%ebx
84	movl	8(%edx),%esp
85	movl	12(%edx),%ebp
86	movl	16(%edx),%esi
87	movl	20(%edx),%edi
88	testl	%eax,%eax
89	jnz	2f
90	incl	%eax
912:	movl	%ecx,0(%esp)
92	ret
93