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/* $OpenBSD: sigsetjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
/*-
* Copyright (c) 1991, 1993, 1995,
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Havard Eidnes.
*
* 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. 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.
*/
#include <private/bionic_asm.h>
#include <machine/regnum.h>
#include <machine/setjmp.h>
/*
* trampolines for sigsetjmp and siglongjmp save and restore mask.
*
*/
FRAMESZ= MKFSIZ(1,1)
GPOFF= FRAMESZ-2*REGSZ
LEAF(sigsetjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, sigsetjmp)
.set reorder
REG_S a1, (_JBLEN*REGSZ)(a0) # save "savemask"
bne a1, 0x0, 1f # do saving of signal mask?
LA t9, _setjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1: LA t9, setjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(sigsetjmp)
LEAF(siglongjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, siglongjmp)
.set reorder
REG_L t0, (_JBLEN*REGSZ)(a0) # get "savemask"
bne t0, 0x0, 1f # restore signal mask?
LA t9, _longjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1:
LA t9, longjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(siglongjmp)
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