1 /* $NetBSD: setjmp.S,v 1.9 2006/01/05 04:18:01 uwe Exp $ */
4 * Copyright (c) 1990 The Regents of the University of California.
7 * This code is derived from software contributed to Berkeley by
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * from: @(#)setjmp.s 5.1 (Berkeley) 4/23/90
37 #include <machine/asm.h>
38 #include <machine/setjmp.h>
40 #if defined(LIBC_SCCS)
41 RCSID("$NetBSD: setjmp.S,v 1.9 2006/01/05 04:18:01 uwe Exp $")
45 * C library -- setjmp, longjmp
48 * will generate a "return(v)" from the last call to
50 * by restoring registers from the stack.
51 * The previous signal state is restored.
55 PIC_PROLOGUE(.L_got_1)
59 mov.l .L___sigprocmask14_1, r0
61 mov #1, r4 /* how = SIG_BLOCK */
62 mov #0, r5 /* new = NULL */
64 add #(_JB_SIGMASK * 4), r6 /* old = &sigmask */
70 /* identical to _setjmp except that _JB_HAS_MASK is non-zero */
71 add #((_JB_HAS_MASK + 1) * 4), r4
73 mov.l r0, @-r4 /* has signal mask */
87 .L_got_1: PIC_GOT_DATUM
88 .L___sigprocmask14_1: CALL_DATUM(_C_LABEL(__sigprocmask14), 1b)
89 SET_ENTRY_SIZE(__setjmp14)
93 /* we won't return here, so we don't need to save pr and r12 */
94 PIC_PROLOGUE_NOSAVE(.L_got_2)
98 mov.l .L___sigprocmask14_2, r0
100 mov #3, r4 /* how = SIG_SETMASK */
101 add #(_JB_SIGMASK * 4), r5 /* new = &sigmask */
103 mov #0, r6 /* old = NULL */
108 /* identical to _longjmp */
120 tst r0, r0 /* make sure return value is non-zero */
128 .L_got_2: PIC_GOT_DATUM
129 .L___sigprocmask14_2: CALL_DATUM(_C_LABEL(__sigprocmask14), 1b)
130 SET_ENTRY_SIZE(__longjmp14)