1/*	$NetBSD: sigsetjmp.S,v 1.8.34.3 2009/08/23 23:17:55 matt Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993, 1995,
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Havard Eidnes.
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. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/syscall.h>
36#include <mips/regnum.h>
37#include <mips/asm.h>
38#include <machine/setjmp.h>
39
40#include "assym.h"
41#include "SYS.h"
42
43#if defined(LIBC_SCCS) && !defined(lint)
44#if 0
45	RCSID("from: @(#)setjmp.s	8.1 (Berkeley) 6/4/93")
46#else
47	RCSID("$NetBSD: sigsetjmp.S,v 1.8.34.3 2009/08/23 23:17:55 matt Exp $")
48#endif
49#endif /* LIBC_SCCS and not lint */
50
51/*
52 * C library -- sigsetjmp, siglongjmp
53 *
54 *	siglongjmp(a,v)
55 * will generate a "return(v)" from
56 * the last call to
57 *	sigsetjmp(a, savemask)
58 * by restoring registers from the stack,
59 * and dependent on savemask restores the
60 * signal mask.
61 */
62
63LEAF(__sigsetjmp14)
64	PIC_PROLOGUE(__sigsetjmp14)
65	REG_S	a1, _JBLEN*SZREG(a0)		# save "savemask"
66	bne	a1, 0x0, 1f			# do saving of signal mask?
67	PIC_TAILCALL(_setjmp)
68
691:	PIC_TAILCALL(__setjmp14)
70END(__sigsetjmp14)
71
72LEAF(__siglongjmp14)
73	PIC_PROLOGUE(__siglongjmp14)
74	REG_L	t0, _JBLEN*SZREG(a0)		# get "savemask"
75	bne	t0, 0x0, 1f			# restore signal mask?
76	PIC_TAILCALL(_longjmp)
77
781:	PIC_TAILCALL(__longjmp14)
79END(__siglongjmp14)
80