/* $OpenBSD: sigsetjmp.S,v 1.4 2005/08/07 16:40:13 espie Exp $ */ /* $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 /* * 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. */ .set noreorder LEAF(sigsetjmp, 2) LDGP(pv) stq a1, (81 * 8)(a0) /* save the mask */ bne a1, Lsavesig /* if !zero, save signals */ jmp zero, _setjmp /* else don't. */ Lsavesig: jmp zero, setjmp END(sigsetjmp) LEAF(siglongjmp, 2) LDGP(pv) ldq t0, (81 * 8)(a0) /* get the mask */ bne t0, Lrestoresig /* if !zero, restore signals */ jmp zero, _longjmp Lrestoresig: jmp zero, longjmp END(siglongjmp)