1/* $NetBSD: sigsetjmp.S,v 1.8 2006/01/05 03:40:34 uwe Exp $ */ 2 3/*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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. 21 * 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 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)setjmp.s 5.1 (Berkeley) 4/23/90 35 */ 36 37#include <machine/asm.h> 38#include <machine/setjmp.h> 39 40#if defined(LIBC_SCCS) 41 RCSID("$NetBSD: sigsetjmp.S,v 1.8 2006/01/05 03:40:34 uwe Exp $") 42#endif 43 44ENTRY(__sigsetjmp14) 45 tst r5, r5 46 bt 2f /* if (savemask == 0) */ 47 48 /* identical to longjmp except that _JB_HAS_MASK is in the argument */ 49 PIC_PROLOGUE(.L_got_1) 50 sts.l pr, @-sp 51 mov.l r4, @-sp 52 mov.l r5, @-sp 53 54 mov.l .L___sigprocmask14_1, r0 55 mov r4, r6 56 mov #1, r4 /* how = SIG_BLOCK */ 57 mov #0, r5 /* new = NULL */ 581: CALL r0 59 add #(_JB_SIGMASK * 4), r6 /* old = &sigmask */ 60 61 mov.l @sp+, r5 62 mov.l @sp+, r4 63 lds.l @sp+, pr 64 PIC_EPILOGUE 65 662: /* 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? */ 69 mov.l r15, @-r4 70 mov.l r14, @-r4 71 mov.l r13, @-r4 72 mov.l r12, @-r4 73 mov.l r11, @-r4 74 mov.l r10, @-r4 75 mov.l r9, @-r4 76 mov.l r8, @-r4 77 sts.l pr, @-r4 78 rts 79 xor r0, r0 80 81 .align 2 82.L_got_1: PIC_GOT_DATUM 83.L___sigprocmask14_1: CALL_DATUM(_C_LABEL(__sigprocmask14), 1b) 84 SET_ENTRY_SIZE(__sigsetjmp14) 85 86 87ENTRY(__siglongjmp14) 88 mov.l @(_JB_HAS_MASK * 4, r4), r0 89 tst r0, r0 90 bt 2f /* if no mask */ 91 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) 95 mov.l r5, @-sp 96 mov.l r4, @-sp 97 98 mov.l .L___sigprocmask14_2, r0 99 mov r4, r5 100 mov #3, r4 /* how = SIG_SETMASK */ 101 add #(_JB_SIGMASK * 4), r5 /* new = &sigmask */ 1021: CALL r0 103 mov #0, r6 /* old = NULL */ 104 105 mov.l @sp+, r4 106 mov.l @sp+, r5 107 1082: /* identical to _longjmp */ 109 lds.l @r4+, pr 110 mov.l @r4+, r8 111 mov.l @r4+, r9 112 mov.l @r4+, r10 113 mov.l @r4+, r11 114 mov.l @r4+, r12 115 mov.l @r4+, r13 116 mov.l @r4+, r14 117 mov.l @r4+, r15 118 119 mov r5, r0 120 tst r0, r0 /* make sure return value is non-zero */ 121 bf .L0 122 add #1, r0 123.L0: 124 rts 125 nop 126 127 .align 2 128.L_got_2: PIC_GOT_DATUM 129.L___sigprocmask14_2: CALL_DATUM(_C_LABEL(__sigprocmask14), 1b) 130 SET_ENTRY_SIZE(__siglongjmp14) 131