sigsetjmp.S revision 1.1 1 1.1 briggs /*-
2 1.1 briggs * Copyright (c) 1990 The Regents of the University of California.
3 1.1 briggs * All rights reserved.
4 1.1 briggs *
5 1.1 briggs * This code is derived from software contributed to Berkeley by
6 1.1 briggs * the Systems Programming Group of the University of Utah Computer
7 1.1 briggs * Science Department.
8 1.1 briggs *
9 1.1 briggs * Redistribution and use in source and binary forms, with or without
10 1.1 briggs * modification, are permitted provided that the following conditions
11 1.1 briggs * are met:
12 1.1 briggs * 1. Redistributions of source code must retain the above copyright
13 1.1 briggs * notice, this list of conditions and the following disclaimer.
14 1.1 briggs * 2. Redistributions in binary form must reproduce the above copyright
15 1.1 briggs * notice, this list of conditions and the following disclaimer in the
16 1.1 briggs * documentation and/or other materials provided with the distribution.
17 1.1 briggs * 3. All advertising materials mentioning features or use of this software
18 1.1 briggs * must display the following acknowledgement:
19 1.1 briggs * This product includes software developed by the University of
20 1.1 briggs * California, Berkeley and its contributors.
21 1.1 briggs * 4. Neither the name of the University nor the names of its contributors
22 1.1 briggs * may be used to endorse or promote products derived from this software
23 1.1 briggs * without specific prior written permission.
24 1.1 briggs *
25 1.1 briggs * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 1.1 briggs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 1.1 briggs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 1.1 briggs * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 1.1 briggs * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 1.1 briggs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 1.1 briggs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 1.1 briggs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 1.1 briggs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 1.1 briggs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 1.1 briggs * SUCH DAMAGE.
36 1.1 briggs */
37 1.1 briggs
38 1.1 briggs #if defined(LIBC_SCCS) && !defined(lint)
39 1.1 briggs .text
40 1.1 briggs /*.asciz "from: @(#)_setjmp.s 5.1 (Berkeley) 5/12/90"*/
41 1.1 briggs .asciz "$NetBSD: sigsetjmp.S,v 1.1 1995/05/03 03:43:07 briggs Exp $"
42 1.1 briggs #endif /* LIBC_SCCS and not lint */
43 1.1 briggs
44 1.1 briggs /*
45 1.1 briggs * C library -- sigsetjmp, siglongjmp
46 1.1 briggs *
47 1.1 briggs * siglongjmp(a,v)
48 1.1 briggs * will generate a "return(v)" from
49 1.1 briggs * the last call to
50 1.1 briggs * sigsetjmp(a,m)
51 1.1 briggs * by restoring registers from the stack,
52 1.1 briggs * The previous signal state is restored if 'm' was non-zero.
53 1.1 briggs */
54 1.1 briggs
55 1.1 briggs #include "DEFS.h"
56 1.1 briggs
57 1.1 briggs /* grab _JBLEN */
58 1.1 briggs #include <m68k/setjmp.h>
59 1.1 briggs
60 1.1 briggs ENTRY(sigsetjmp)
61 1.1 briggs movl sp@(8),d1 /* grab the mask */
62 1.1 briggs movl sp@(4),a0 /* grab the area pointer */
63 1.1 briggs movl d1,a0@(_JBLEN * 4 ) /* save at end of area */
64 1.1 briggs tstl d1
65 1.1 briggs bne dosig
66 1.1 briggs jra __setjmp
67 1.1 briggs dosig:
68 1.1 briggs jra _setjmp
69 1.1 briggs
70 1.1 briggs
71 1.1 briggs ENTRY(siglongjmp)
72 1.1 briggs movl sp@(4),a0 /* save area pointer */
73 1.1 briggs tstl a0@(_JBLEN * 4) /* check mask... */
74 1.1 briggs bne didsig
75 1.1 briggs jra __longjmp
76 1.1 briggs didsig:
77 1.1 briggs jra _longjmp
78