63 lines
1.8 KiB
ArmAsm
63 lines
1.8 KiB
ArmAsm
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/* $NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <machine/asm.h>
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/*
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* C library -- sigsetjmp, siglongjmp
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*
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* siglongjmp(a,v)
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* will generate a "return(v)" from
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* the last call to
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* sigsetjmp(a, mask)
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* by restoring registers from the stack.
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* If `mask' is non-zero, the previous signal
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* state will be restored.
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*/
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.set noreorder
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LEAF(sigsetjmp, 2)
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LDGP(pv)
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stq a1, (81 * 8)(a0) /* save the mask */
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bne a1, Lsavesig /* if !zero, save signals */
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jmp zero, _setjmp /* else don't. */
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Lsavesig:
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jmp zero, setjmp
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END(sigsetjmp)
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LEAF(siglongjmp, 2)
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LDGP(pv)
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ldq t0, (81 * 8)(a0) /* get the mask */
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bne t0, Lrestoresig /* if !zero, restore signals */
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jmp zero, _longjmp
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Lrestoresig:
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jmp zero, longjmp
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END(siglongjmp)
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