1/*	$NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $	*/
2
3/*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#include <machine/asm.h>
31__FBSDID("$FreeBSD: releng/10.3/lib/libc/ia64/gen/sigsetjmp.S 111777 2003-03-03 01:09:46Z obrien $");
32
33#define LOCORE
34#include <machine/setjmp.h>
35
36/*
37 * C library -- sigsetjmp, siglongjmp
38 *
39 *	siglongjmp(a,v)
40 * will generate a "return(v)" from
41 * the last call to
42 *	sigsetjmp(a, mask)
43 * by restoring registers from the stack.
44 * If `mask' is non-zero, the previous signal
45 * state will be restored.
46 */
47
48ENTRY(sigsetjmp, 2)
49	add	r14=J_SIGMASK,in0		// place to save mask
50	cmp.ne	p6,p7=0,in1			// save signal state?
51	;;
52	st8	[r14]=in1			// save mask value
53(p6)	br.cond.dptk.many setjmp
54(p7)	br.cond.dpnt.many _setjmp
55END(sigsetjmp)
56
57	WEAK_ALIAS(siglongjmp,__siglongjmp)
58ENTRY(__siglongjmp, 2)
59	add	r14=J_SIGMASK,in0		// address of mask value
60	;;
61	ld8	r14=[r14]
62	;;
63	cmp.ne	p6,p7=0,r14			// did we save signals?
64(p6)	br.cond.dptk.many longjmp
65(p7)	br.cond.dpnt.many _longjmp
66END(__siglongjmp)
67