| Current Path : /usr/src/lib/libc/powerpc64/gen/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/lib/libc/powerpc64/gen/_setjmp.S |
/*-
* Copyright (c) 2002 Peter Grehan.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/* $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $ */
#include <machine/asm.h>
__FBSDID("$FreeBSD: release/9.1.0/lib/libc/powerpc64/gen/_setjmp.S 234520 2012-04-21 00:26:03Z nwhitehorn $");
/*
* C library -- _setjmp, _longjmp
*
* _longjmp(a,v)
* will generate a "return(v?v:1)" from the last call to
* _setjmp(a)
* by restoring registers from the stack.
* The previous signal state is NOT restored.
*
* jmpbuf layout:
* +------------+
* | unused |
* +------------+
* | unused |
* | |
* | (4 words) |
* | |
* +------------+
* | saved regs |
* | ... |
*/
ENTRY(_setjmp)
mflr %r11
mfcr %r12
mr %r10,%r1
mr %r9,%r2
std %r9,40 + 0*8(%r3)
std %r10,40 + 1*8(%r3)
std %r11,40 + 2*8(%r3)
std %r12,40 + 3*8(%r3)
std %r13,40 + 4*8(%r3)
std %r14,40 + 5*8(%r3)
std %r15,40 + 6*8(%r3)
std %r16,40 + 7*8(%r3)
std %r17,40 + 8*8(%r3)
std %r18,40 + 9*8(%r3)
std %r19,40 + 10*8(%r3)
std %r20,40 + 11*8(%r3)
std %r21,40 + 12*8(%r3)
std %r22,40 + 13*8(%r3)
std %r23,40 + 14*8(%r3)
std %r24,40 + 15*8(%r3)
std %r25,40 + 16*8(%r3)
std %r26,40 + 17*8(%r3)
std %r27,40 + 18*8(%r3)
std %r28,40 + 19*8(%r3)
std %r29,40 + 20*8(%r3)
std %r30,40 + 21*8(%r3)
std %r31,40 + 22*8(%r3)
li %r3,0
blr
ENTRY(_longjmp)
ld %r9,40 + 0*8(%r3)
ld %r10,40 + 1*8(%r3)
ld %r11,40 + 2*8(%r3)
ld %r12,40 + 3*8(%r3)
ld %r14,40 + 5*8(%r3)
ld %r15,40 + 6*8(%r3)
ld %r16,40 + 7*8(%r3)
ld %r17,40 + 8*8(%r3)
ld %r18,40 + 9*8(%r3)
ld %r19,40 + 10*8(%r3)
ld %r20,40 + 11*8(%r3)
ld %r21,40 + 12*8(%r3)
ld %r22,40 + 13*8(%r3)
ld %r23,40 + 14*8(%r3)
ld %r24,40 + 15*8(%r3)
ld %r25,40 + 16*8(%r3)
ld %r26,40 + 17*8(%r3)
ld %r27,40 + 18*8(%r3)
ld %r28,40 + 19*8(%r3)
ld %r29,40 + 20*8(%r3)
ld %r30,40 + 21*8(%r3)
ld %r31,40 + 22*8(%r3)
mtlr %r11
mtcr %r12
mr %r2,%r9
mr %r1,%r10
or. %r3,%r4,%r4
bnelr
li %r3,1
blr
.section .note.GNU-stack,"",%progbits