76 lines
2.1 KiB
ArmAsm
76 lines
2.1 KiB
ArmAsm
/* $NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#define LOCORE
|
|
#include <machine/asm.h>
|
|
#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)
|
|
//
|
|
// Compensate for the pointer twiddling that setjmp does.
|
|
//
|
|
dep r14=r0,r32,0,4
|
|
;;
|
|
add r14=J_SIGMASK+0x10,r14 // place to save mask
|
|
;;
|
|
st8 [r14]=in1 // save mask value
|
|
cmp.ne p6,p7=0,in1 // save signal state?
|
|
(p6) br.cond.dptk.many setjmp
|
|
(p7) br.cond.dpnt.many _setjmp
|
|
END(sigsetjmp)
|
|
|
|
WEAK_ALIAS(siglongjmp,__siglongjmp)
|
|
ENTRY(__siglongjmp, 2)
|
|
//
|
|
// Compensate for the pointer twiddling that setjmp does.
|
|
//
|
|
dep r14=r0,r32,0,4
|
|
;;
|
|
add r14=J_SIGMASK+0x10,r14 // 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)
|