1 /* $NetBSD: sigsetjmp.S,v 1.9 2006/01/05 19:21:37 uwe Exp $ */
4 * Copyright (c) 1990 The Regents of the University of California.
7 * This code is derived from software contributed to Berkeley by
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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: sigsetjmp.S,v 1.9 2006/01/05 19:21:37 uwe Exp $")
46 bt 2f /* if (savemask == 0) */
48 /* identical to longjmp except that _JB_HAS_MASK is in the argument */
49 PIC_PROLOGUE(.L_got_1)
54 mov.l .L___sigprocmask14_1, r0
56 mov #1, r4 /* how = SIG_BLOCK */
57 mov #0, r5 /* new = NULL */
59 add #(_JB_SIGMASK * 4), r6 /* old = &sigmask */
66 2: /* identical to _setjmp except that _JB_HAS_MASK is in the argument */
67 add #((_JB_HAS_MASK + 1) * 4), r4
68 mov.l r5, @-r4 /* has signal mask? */
82 .L_got_1: PIC_GOT_DATUM
83 .L___sigprocmask14_1: CALL_DATUM(_C_LABEL(__sigprocmask14), 1b)
84 SET_ENTRY_SIZE(__sigsetjmp14)
88 mov.l @(_JB_HAS_MASK * 4, r4), r0
90 bt 2f /* if no mask */
92 /* identical to longjmp */
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 2: /* 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(__siglongjmp14)