sigsetjmp.S revision 1.5 
1/*	$NetBSD: sigsetjmp.S,v 1.5 2003/07/01 14:35:44 marcus Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	from: @(#)setjmp.s	5.1 (Berkeley) 4/23/90"
39 */
40
41#include <machine/asm.h>
42#if defined(LIBC_SCCS)
43	RCSID("$NetBSD: sigsetjmp.S,v 1.5 2003/07/01 14:35:44 marcus Exp $")
44#endif
45
46ENTRY(sigsetjmp)
47	mov	r4, r0
48	add	#4*9, r0	! &savemask
49	mov.l	r5, @r0
50	tst	r5, r5
51	bt	1f
52
53	sts.l	pr, @-r15
54	mov.l	r4, @-r15
55	mov	#0, r4
56	mov.l	Lsigblock, r0
57#ifdef PIC
58	bsrf	r0
59	nop
602:
61#else
62	jsr	@r0
63	nop
64#endif
65	mov.l	@r15+, r4
66	lds.l	@r15+, pr
67
68	mov	r4, r1
69	add	#4*10, r1
70	mov.l	r0, @r1
71
721:
73	add	#4*9, r4
74	mov.l	r15, @-r4
75	mov.l	r14, @-r4
76	mov.l	r13, @-r4
77	mov.l	r12, @-r4
78	mov.l	r11, @-r4
79	mov.l	r10, @-r4
80	mov.l	r9, @-r4
81	mov.l	r8, @-r4
82	sts.l	pr, @-r4
83	rts
84	xor	r0, r0
85
86	.align	2
87Lsigblock:
88#ifdef PIC
89	.long	_C_LABEL(sigblock)-2b
90#else
91	.long	_C_LABEL(sigblock)
92#endif
93
94ENTRY(siglongjmp)
95	mov	r4, r0
96	add	#4*9, r0
97	mov.l	@r0, r0
98	tst	r0, r0
99	bt	1f
100
101	mov.l	r4, @-r15
102	mov.l	r5, @-r15
103	mov	r4, r0
104	add	#4*10, r0
105	mov.l	@r0, r4
106	mov.l	Lsigsetmask, r0
107#ifdef PIC
108	bsrf	r0
109	nop
1102:
111#else
112	jsr	@r0
113	nop
114#endif
115	mov.l	@r15+, r5
116	mov.l	@r15+, r4
117
1181:
119	mov	r5, r0
120	lds.l	@r4+, pr
121	mov.l	@r4+, r8
122	mov.l	@r4+, r9
123	mov.l	@r4+, r10
124	mov.l	@r4+, r11
125	mov.l	@r4+, r12
126	mov.l	@r4+, r13
127	mov.l	@r4+, r14
128	mov.l	@r4+, r15
129	tst	r0, r0
130	bf	.L0
131	add	#1, r0
132.L0:
133	rts
134	nop
135
136	.align	2
137Lsigsetmask :
138#ifdef PIC
139	.long	_C_LABEL(sigsetmask)-2b
140#else
141	.long	_C_LABEL(sigsetmask)
142#endif
143