/* $NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#define LOCORE
#include <machine/setjmp.h>
/*
* C library -- sigsetjmp, siglongjmp
*
* siglongjmp(a,v)
* will generate a "return(v)" from
* the last call to
* sigsetjmp(a, mask)
* by restoring registers from the stack.
* If `mask' is non-zero, the previous signal
* state will be restored.
*/
ENTRY(sigsetjmp, 2)
add r14=J_SIGMASK,in0 // place to save mask
cmp.ne p6,p7=0,in1 // save signal state?
;;
st8 [r14]=in1 // save mask value
(p6) br.cond.dptk.many setjmp
(p7) br.cond.dpnt.many _setjmp
END(sigsetjmp)
WEAK_ALIAS(siglongjmp,__siglongjmp)
ENTRY(__siglongjmp, 2)
add r14=J_SIGMASK,in0 // address of mask value
;;
ld8 r14=[r14]
;;
cmp.ne p6,p7=0,r14 // did we save signals?
(p6) br.cond.dptk.many longjmp
(p7) br.cond.dpnt.many _longjmp
END(__siglongjmp)
