xref: /netbsd/lib/libc/arch/vax/gen/__sigsetjmp14.S (revision bf9ec67e)
1/*
2 * Copyright (c) 1983, 1993, 1995
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. 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#if defined(LIBC_SCCS) && !defined(lint)
35	.asciz "$NetBSD: __sigsetjmp14.S,v 1.3 2002/02/24 01:06:19 matt Exp $"
36#endif /* LIBC_SCCS and not lint */
37
38/*
39 * C library -- sigsetjmp, siglongjmp
40 *
41 *      siglongjmp(a,v)
42 * will generate a "return(v)" from
43 * the last call to
44 *      sigsetjmp(a, savemask)
45 * by restoring registers from the stack,
46 * and dependent on savemask restores the
47 * signal mask.
48 */
49
50#include "DEFS.h"
51#include <machine/setjmp.h>
52
53ENTRY(__sigsetjmp14, R6)
54	movl	4(%ap),%r0		# get env pointer
55	movl	8(%ap),(_JBLEN*4)(%r0)	# save "savemask"
56	tstl	8(%ap)			# do saving of signal mask?
57	beql	L1
58	jmp	_C_LABEL(__setjmp14)+2	# yep, do full setjmp
59L1:	jmp	_C_LABEL(_setjmp)+2	# nope, skip to _setjmp
60
61ENTRY(__siglongjmp14, 0)
62	movl	4(%ap),%r0		# get env pointer
63	tstl	(_JBLEN*4)(%r0)		# test if "savemask" was set
64	beql	L2
65	jmp	_C_LABEL(__longjmp14)+2	# yep, do full longjmp
66L2:	jmp	_C_LABEL(_longjmp)+2	# nope, skip to _longjmp
67
68
69