xref: /netbsd-src/lib/libc/arch/m68k/gen/sigsetjmp.S (revision 942581824f52f2ec2ee4a78b95b13892268c05ee)
1*94258182Smatt/*	$NetBSD: sigsetjmp.S,v 1.10 2013/07/16 22:12:20 matt Exp $	*/
29f1ee9aeSthorpej
3b1f67e29Sbriggs/*-
4b1f67e29Sbriggs * Copyright (c) 1990 The Regents of the University of California.
5b1f67e29Sbriggs * All rights reserved.
6b1f67e29Sbriggs *
7b1f67e29Sbriggs * This code is derived from software contributed to Berkeley by
8b1f67e29Sbriggs * the Systems Programming Group of the University of Utah Computer
9b1f67e29Sbriggs * Science Department.
10b1f67e29Sbriggs *
11b1f67e29Sbriggs * Redistribution and use in source and binary forms, with or without
12b1f67e29Sbriggs * modification, are permitted provided that the following conditions
13b1f67e29Sbriggs * are met:
14b1f67e29Sbriggs * 1. Redistributions of source code must retain the above copyright
15b1f67e29Sbriggs *    notice, this list of conditions and the following disclaimer.
16b1f67e29Sbriggs * 2. Redistributions in binary form must reproduce the above copyright
17b1f67e29Sbriggs *    notice, this list of conditions and the following disclaimer in the
18b1f67e29Sbriggs *    documentation and/or other materials provided with the distribution.
19eb7c1594Sagc * 3. Neither the name of the University nor the names of its contributors
20b1f67e29Sbriggs *    may be used to endorse or promote products derived from this software
21b1f67e29Sbriggs *    without specific prior written permission.
22b1f67e29Sbriggs *
23b1f67e29Sbriggs * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24b1f67e29Sbriggs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25b1f67e29Sbriggs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26b1f67e29Sbriggs * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27b1f67e29Sbriggs * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28b1f67e29Sbriggs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29b1f67e29Sbriggs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30b1f67e29Sbriggs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31b1f67e29Sbriggs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32b1f67e29Sbriggs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33b1f67e29Sbriggs * SUCH DAMAGE.
34b1f67e29Sbriggs */
35b1f67e29Sbriggs
36d0fed6c8Sthorpej#include <machine/asm.h>
379f1ee9aeSthorpej
38b1f67e29Sbriggs#if defined(LIBC_SCCS) && !defined(lint)
399f1ee9aeSthorpej#if 0
409f1ee9aeSthorpej	RCSID("from: @(#)_setjmp.s	5.1 (Berkeley) 5/12/90")
419f1ee9aeSthorpej#else
42*94258182Smatt	RCSID("$NetBSD: sigsetjmp.S,v 1.10 2013/07/16 22:12:20 matt Exp $")
439f1ee9aeSthorpej#endif
44b1f67e29Sbriggs#endif /* LIBC_SCCS and not lint */
45b1f67e29Sbriggs
46b1f67e29Sbriggs/*
47b1f67e29Sbriggs * C library -- sigsetjmp, siglongjmp
48b1f67e29Sbriggs *
49b1f67e29Sbriggs *	siglongjmp(a,v)
50b1f67e29Sbriggs * will generate a "return(v)" from
51b1f67e29Sbriggs * the last call to
52b1f67e29Sbriggs *	sigsetjmp(a,m)
53b1f67e29Sbriggs * by restoring registers from the stack,
54b1f67e29Sbriggs * The previous signal state is restored if 'm' was non-zero.
55b1f67e29Sbriggs */
56b1f67e29Sbriggs
57b1f67e29Sbriggs/* grab _JBLEN */
58b1f67e29Sbriggs#include <m68k/setjmp.h>
59b1f67e29Sbriggs
6022d2b319SchristosENTRY(__sigsetjmp14)
6107a0a325Smatt	movl	8(%sp),%d1	/* grab the mask */
6207a0a325Smatt        movl	4(%sp),%a0	/* grab the area pointer */
6307a0a325Smatt	movl	%d1,(_JBLEN * 4)(%a0)	/* save at end of area */
643b435a73Sthorpej	tstl	%d1
65b1f67e29Sbriggs	bne	dosig
661d0a4330Sitohy	jra	PIC_PLT(_C_LABEL(_setjmp))
67b1f67e29Sbriggsdosig:
6822d2b319Schristos	jra	PIC_PLT(_C_LABEL(__setjmp14))
69*94258182SmattEND(__sigsetjmp14)
70b1f67e29Sbriggs
71b1f67e29Sbriggs
7222d2b319SchristosENTRY(__siglongjmp14)
7307a0a325Smatt	movl	4(%sp),%a0	/* save area pointer */
7407a0a325Smatt	tstl	(_JBLEN * 4)(%a0) /* check mask... */
75b1f67e29Sbriggs	bne	didsig
761d0a4330Sitohy	jra	PIC_PLT(_C_LABEL(_longjmp))
77b1f67e29Sbriggsdidsig:
7822d2b319Schristos	jra	PIC_PLT(_C_LABEL(__longjmp14))
79*94258182SmattEND(__siglongjmp14)
80