xref: /netbsd-src/lib/libc/arch/sparc/gen/sigsetjmp.S (revision 4d12bfcd155352508213ace5ccc59ce930ea2974)
1*4d12bfcdSjoerg/*	$NetBSD: sigsetjmp.S,v 1.7 2013/09/12 15:36:16 joerg Exp $	*/
27530512aSpk/*
37530512aSpk * Copyright (c) 1995 Paul Kranenburg
47530512aSpk * All rights reserved.
57530512aSpk *
67530512aSpk * Redistribution and use in source and binary forms, with or without
77530512aSpk * modification, are permitted provided that the following conditions
87530512aSpk * are met:
97530512aSpk * 1. Redistributions of source code must retain the above copyright
107530512aSpk *    notice, this list of conditions and the following disclaimer.
117530512aSpk * 2. Redistributions in binary form must reproduce the above copyright
127530512aSpk *    notice, this list of conditions and the following disclaimer in the
137530512aSpk *    documentation and/or other materials provided with the distribution.
147530512aSpk * 3. All advertising materials mentioning features or use of this software
157530512aSpk *    must display the following acknowledgement:
167530512aSpk *      This product includes software developed by Paul Kranenburg.
177530512aSpk * 4. The name of the author may not be used to endorse or promote products
187530512aSpk *    derived from this software without specific prior written permission
197530512aSpk *
207530512aSpk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
217530512aSpk * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
227530512aSpk * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
237530512aSpk * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
247530512aSpk * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
257530512aSpk * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
267530512aSpk * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
277530512aSpk * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
287530512aSpk * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
297530512aSpk * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
307530512aSpk *
317530512aSpk */
327530512aSpk
337530512aSpk#include "SYS.h"
347530512aSpk
35*4d12bfcdSjoerg#ifdef __PIC__
367530512aSpk
37eb9395f8SuweENTRY(__sigsetjmp14)
387aa78977Spk	PIC_PROLOGUE(%g1, %g2)		! %g1 = _GLOBAL_OFFSET_TABLE
39a34b3f87Suwe	tst	%o1
40a34b3f87Suwe	bnz	1f
41a34b3f87Suwe	 st	%o1, [%o0 + 56]		! jmpbuf[JBLEN] = savemask
42a34b3f87Suwe
43a34b3f87Suwe	!! if (savemask == 0) goto _setjmp
44a34b3f87Suwe	set	_C_LABEL(_setjmp), %g2
45a34b3f87Suwe	ld	[%g1 + %g2], %g1
467aa78977Spk	jmp %g1
477aa78977Spk	 nop
487530512aSpk
49a34b3f87Suwe	!! if (savemask != 0) goto setjmp
50a34b3f87Suwe1:	set	_C_LABEL(__setjmp14), %g2
51a34b3f87Suwe	ld	[%g1 + %g2], %g1
52a34b3f87Suwe	jmp %g1
53a34b3f87Suwe	 nop
54a34b3f87Suwe
55a34b3f87Suwe
56eb9395f8SuweENTRY(__siglongjmp14)
577aa78977Spk	PIC_PROLOGUE(%g1, %g2)		! %g1 = _GLOBAL_OFFSET_TABLE
58a34b3f87Suwe	ld	[%o0 + 56], %g2		! restoremask = jmpbuf[JBLEN]
59a34b3f87Suwe	tst	%g2
60a34b3f87Suwe	bnz	1f
61a34b3f87Suwe	 nop
62a34b3f87Suwe
63a34b3f87Suwe	!! if (restoremask == 0) goto _longjmp
64a34b3f87Suwe	set	_C_LABEL(_longjmp), %g2
65a34b3f87Suwe	ld	[%g1 + %g2], %g1
667530512aSpk	jmp %g1
677530512aSpk	 nop
687aa78977Spk
69a34b3f87Suwe	!! if (restoremask != 0) goto longjmp
70a34b3f87Suwe1:	set	_C_LABEL(__longjmp14), %g2
71a34b3f87Suwe	ld	[%g1 + %g2], %g1
72a34b3f87Suwe	jmp %g1
73a34b3f87Suwe	 nop
74a34b3f87Suwe
75*4d12bfcdSjoerg#else /* !__PIC__ */
767530512aSpk
77eb9395f8SuweENTRY(__sigsetjmp14)
787530512aSpk	cmp %o1,0
79131c70b1Stv	be _C_LABEL(_setjmp)
80eb9395f8Suwe	st %o1,[%o0+56]		! jmpbuf[JBLEN]
817530512aSpk	nop
82eb9395f8Suwe	ba,a _C_LABEL(__setjmp14)
837530512aSpk	unimp 0
847530512aSpk
85eb9395f8SuweENTRY(__siglongjmp14)
86eb9395f8Suwe	ld [%o0+56],%g1
877530512aSpk	cmp %g1,0
88131c70b1Stv	be _C_LABEL(_longjmp)
897530512aSpk	nop
90eb9395f8Suwe	ba,a _C_LABEL(__longjmp14)
917530512aSpk	unimp 0
927aa78977Spk
93*4d12bfcdSjoerg#endif /* !__PIC__ */
94