1 /* $NetBSD: compat_sigsetjmp.S,v 1.1 2005/09/16 18:21:19 drochner Exp $ */
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
7 * Author: Chris G. Demetriou
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 * Carnegie Mellon requests users of this software to return to
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
30 #include <machine/asm.h>
33 * C library -- sigsetjmp, siglongjmp
36 * will generate a "return(v)" from
39 * by restoring registers from the stack.
40 * If `mask' is non-zero, the previous signal
41 * state will be restored.
48 stq a1, (81 * 8)(a0) /* save the mask */
49 bne a1, Lsavesig /* if !zero, save signals */
50 jmp zero, _setjmp /* else don't. */
57 ldq t0, (81 * 8)(a0) /* get the mask */
58 bne t0, Lrestoresig /* if !zero, restore signals */