compat_setjmp.S revision 1.1
1 /* $NetBSD: compat_setjmp.S,v 1.1 2005/09/15 22:44:58 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 #if defined(LIBC_SCCS) 39 RCSID("$NetBSD: compat_setjmp.S,v 1.1 2005/09/15 22:44:58 uwe Exp $") 40 #endif 41 42 /* 43 * C library -- _setjmp, _longjmp 44 * 45 * longjmp(a,v) 46 * will generate a "return(v)" from the last call to 47 * setjmp(a) 48 * by restoring registers from the stack. 49 * The previous signal state is restored. 50 */ 51 52 ENTRY(setjmp) 53 sts.l pr, @-r15 54 mov.l r4, @-r15 55 mov #0, r4 56 mov.l Lsigblock, r0 57 #ifdef PIC 58 bsrf r0 59 nop 60 1: 61 #else 62 jsr @r0 63 nop 64 #endif 65 mov.l @r15+, r4 66 lds.l @r15+, pr 67 68 add #4*11, r4 69 mov.l r0, @-r4 /* sigmask */ 70 mov #1, r0 71 mov.l r0, @-r4 /* savemask */ 72 mov.l r15, @-r4 73 mov.l r14, @-r4 74 mov.l r13, @-r4 75 mov.l r12, @-r4 76 mov.l r11, @-r4 77 mov.l r10, @-r4 78 mov.l r9, @-r4 79 mov.l r8, @-r4 80 sts.l pr, @-r4 81 rts 82 xor r0, r0 83 84 .align 2 85 Lsigblock: 86 #ifdef PIC 87 .long _C_LABEL(sigblock)-1b 88 #else 89 .long _C_LABEL(sigblock) 90 #endif 91 92 ENTRY(longjmp) 93 mov.l r4, @-r15 94 mov.l r5, @-r15 95 mov r4, r0 96 add #4*10, r0 97 mov.l @r0, r4 98 mov.l Lsigsetmask, r0 99 #ifdef PIC 100 bsrf r0 101 nop 102 1: 103 #else 104 jsr @r0 105 nop 106 #endif 107 mov.l @r15+, r5 108 mov.l @r15+, r4 109 110 lds.l @r4+, pr 111 mov.l @r4+, r8 112 mov.l @r4+, r9 113 mov.l @r4+, r10 114 mov.l @r4+, r11 115 mov.l @r4+, r12 116 mov.l @r4+, r13 117 mov.l @r4+, r14 118 mov.l @r4+, r15 119 mov r5, r0 120 tst r0, r0 121 bf .L0 122 add #1, r0 123 .L0: 124 rts 125 nop 126 127 .align 2 128 Lsigsetmask: 129 #ifdef PIC 130 .long _C_LABEL(sigsetmask)-1b 131 #else 132 .long _C_LABEL(sigsetmask) 133 #endif 134
Indexes created Fri Sep 26 20:09:58 GMT 2025