118 lines
3.1 KiB
ArmAsm
118 lines
3.1 KiB
ArmAsm
/* $NetBSD: setjmp.S,v 1.4 2001/05/11 19:58:07 msaitoh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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 the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* from: @(#)setjmp.s 5.1 (Berkeley) 4/23/90
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
#if defined(LIBC_SCCS)
|
|
RCSID("$NetBSD: setjmp.S,v 1.4 2001/05/11 19:58:07 msaitoh Exp $")
|
|
#endif
|
|
|
|
/*
|
|
* C library -- _setjmp, _longjmp
|
|
*
|
|
* longjmp(a,v)
|
|
* will generate a "return(v)" from the last call to
|
|
* setjmp(a)
|
|
* by restoring registers from the stack.
|
|
* The previous signal state is restored.
|
|
*/
|
|
|
|
ENTRY(setjmp)
|
|
sts.l pr, @-r15
|
|
mov.l r4, @-r15
|
|
mov #0, r4
|
|
mov.l Lsigblock, r0
|
|
jsr @r0
|
|
nop
|
|
mov.l @r15+, r4
|
|
lds.l @r15+, pr
|
|
|
|
add #4*11, r4
|
|
mov.l r0, @-r4 /* sigmask */
|
|
mov #1, r0
|
|
mov.l r0, @-r4 /* savemask */
|
|
mov.l r15, @-r4
|
|
mov.l r14, @-r4
|
|
mov.l r13, @-r4
|
|
mov.l r12, @-r4
|
|
mov.l r11, @-r4
|
|
mov.l r10, @-r4
|
|
mov.l r9, @-r4
|
|
mov.l r8, @-r4
|
|
sts.l pr, @-r4
|
|
rts
|
|
xor r0, r0
|
|
|
|
.align 2
|
|
Lsigblock:
|
|
.long _C_LABEL(sigblock)
|
|
|
|
ENTRY(longjmp)
|
|
mov.l r4, @-r15
|
|
mov.l r5, @-r15
|
|
mov r4, r0
|
|
add #4*10, r0
|
|
mov.l @r0, r4
|
|
mov.l Lsigsetmask, r0
|
|
jsr @r0
|
|
nop
|
|
mov.l @r15+, r5
|
|
mov.l @r15+, r4
|
|
|
|
lds.l @r4+, pr
|
|
mov.l @r4+, r8
|
|
mov.l @r4+, r9
|
|
mov.l @r4+, r10
|
|
mov.l @r4+, r11
|
|
mov.l @r4+, r12
|
|
mov.l @r4+, r13
|
|
mov.l @r4+, r14
|
|
mov.l @r4+, r15
|
|
mov r5, r0
|
|
tst r0, r0
|
|
bf .L0
|
|
add #1, r0
|
|
.L0:
|
|
rts
|
|
nop
|
|
|
|
.align 2
|
|
Lsigsetmask:
|
|
.long _C_LABEL(sigsetmask)
|