xref: /minix3/lib/libc/arch/m68k/gen/sigsetjmp.S (revision 84d9c625bfea59e274550651111ae9edfdc40fbd)
1*84d9c625SLionel Sambuc/*	$NetBSD: sigsetjmp.S,v 1.10 2013/07/16 22:12:20 matt Exp $	*/
22fe8fb19SBen Gras
32fe8fb19SBen Gras/*-
42fe8fb19SBen Gras * Copyright (c) 1990 The Regents of the University of California.
52fe8fb19SBen Gras * All rights reserved.
62fe8fb19SBen Gras *
72fe8fb19SBen Gras * This code is derived from software contributed to Berkeley by
82fe8fb19SBen Gras * the Systems Programming Group of the University of Utah Computer
92fe8fb19SBen Gras * Science Department.
102fe8fb19SBen Gras *
112fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
122fe8fb19SBen Gras * modification, are permitted provided that the following conditions
132fe8fb19SBen Gras * are met:
142fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
152fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer.
162fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
172fe8fb19SBen Gras *    notice, this list of conditions and the following disclaimer in the
182fe8fb19SBen Gras *    documentation and/or other materials provided with the distribution.
192fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors
202fe8fb19SBen Gras *    may be used to endorse or promote products derived from this software
212fe8fb19SBen Gras *    without specific prior written permission.
222fe8fb19SBen Gras *
232fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
242fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
252fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
262fe8fb19SBen Gras * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
272fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
282fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
292fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
302fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
312fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
322fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
332fe8fb19SBen Gras * SUCH DAMAGE.
342fe8fb19SBen Gras */
352fe8fb19SBen Gras
362fe8fb19SBen Gras#include <machine/asm.h>
372fe8fb19SBen Gras
382fe8fb19SBen Gras#if defined(LIBC_SCCS) && !defined(lint)
392fe8fb19SBen Gras#if 0
402fe8fb19SBen Gras	RCSID("from: @(#)_setjmp.s	5.1 (Berkeley) 5/12/90")
412fe8fb19SBen Gras#else
42*84d9c625SLionel Sambuc	RCSID("$NetBSD: sigsetjmp.S,v 1.10 2013/07/16 22:12:20 matt Exp $")
432fe8fb19SBen Gras#endif
442fe8fb19SBen Gras#endif /* LIBC_SCCS and not lint */
452fe8fb19SBen Gras
462fe8fb19SBen Gras/*
472fe8fb19SBen Gras * C library -- sigsetjmp, siglongjmp
482fe8fb19SBen Gras *
492fe8fb19SBen Gras *	siglongjmp(a,v)
502fe8fb19SBen Gras * will generate a "return(v)" from
512fe8fb19SBen Gras * the last call to
522fe8fb19SBen Gras *	sigsetjmp(a,m)
532fe8fb19SBen Gras * by restoring registers from the stack,
542fe8fb19SBen Gras * The previous signal state is restored if 'm' was non-zero.
552fe8fb19SBen Gras */
562fe8fb19SBen Gras
572fe8fb19SBen Gras/* grab _JBLEN */
582fe8fb19SBen Gras#include <m68k/setjmp.h>
592fe8fb19SBen Gras
602fe8fb19SBen GrasENTRY(__sigsetjmp14)
61*84d9c625SLionel Sambuc	movl	8(%sp),%d1	/* grab the mask */
62*84d9c625SLionel Sambuc        movl	4(%sp),%a0	/* grab the area pointer */
63*84d9c625SLionel Sambuc	movl	%d1,(_JBLEN * 4)(%a0)	/* save at end of area */
642fe8fb19SBen Gras	tstl	%d1
652fe8fb19SBen Gras	bne	dosig
662fe8fb19SBen Gras	jra	PIC_PLT(_C_LABEL(_setjmp))
672fe8fb19SBen Grasdosig:
682fe8fb19SBen Gras	jra	PIC_PLT(_C_LABEL(__setjmp14))
69*84d9c625SLionel SambucEND(__sigsetjmp14)
702fe8fb19SBen Gras
712fe8fb19SBen Gras
722fe8fb19SBen GrasENTRY(__siglongjmp14)
73*84d9c625SLionel Sambuc	movl	4(%sp),%a0	/* save area pointer */
74*84d9c625SLionel Sambuc	tstl	(_JBLEN * 4)(%a0) /* check mask... */
752fe8fb19SBen Gras	bne	didsig
762fe8fb19SBen Gras	jra	PIC_PLT(_C_LABEL(_longjmp))
772fe8fb19SBen Grasdidsig:
782fe8fb19SBen Gras	jra	PIC_PLT(_C_LABEL(__longjmp14))
79*84d9c625SLionel SambucEND(__siglongjmp14)
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