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Machine dependent sig{set,long}jmp().

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pk 1995-01-11 20:22:28 +00:00
parent 77759e5c6d
commit 7530512a37
1 changed files with 94 additions and 0 deletions
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lib/libc/arch/sparc/gen/sigsetjmp.S Normal file
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/* $NetBSD: sigsetjmp.S,v 1.1 1995/01/11 20:22:28 pk Exp $ */
/*
* Copyright (c) 1995 Paul Kranenburg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "SYS.h"
#ifdef PIC
/*
* We cannot do PIC branches to external labels, hence all this crap.
*/
.data
L_setjmp: .word _setjmp
L__setjmp: .word __setjmp
L_longjmp: .word _longjmp
L__longjmp: .word __longjmp
.text
ENTRY(sigsetjmp)
PIC_PROLOGUE(%g1,%g2)
cmp %o1,0
st %o1,[%o0+40] ! jmpbuf[JBLEN]
bne 1f
nop
ld [%g1+L__setjmp], %g1
ba,a 2f
1:
ld [%g1+L_setjmp], %g1
ba,a 2f
unimp 0
ENTRY(siglongjmp)
PIC_PROLOGUE(%g1,%g2)
ld [%o0+40],%g2
cmp %g2,0
bne 1f
nop
ld [%g1+L__longjmp], %g1
ba,a 2f
1:
ld [%g1+L_longjmp], %g1
2:
ld [%g1],%g1
jmp %g1
nop
unimp 0
#else
ENTRY(sigsetjmp)
cmp %o1,0
st %o1,[%o0+40] ! jmpbuf[JBLEN]
be __setjmp
nop
ba _setjmp
nop
unimp 0
ENTRY(siglongjmp)
ld [%o0+40],%g1
cmp %g1,0
be __longjmp
nop
ba _longjmp
nop
unimp 0
#endif