compat_sigsetjmp.S revision 1.5
1 /* $NetBSD: compat_sigsetjmp.S,v 1.5 2006/01/05 19:21:37 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: compat_sigsetjmp.S,v 1.5 2006/01/05 19:21:37 uwe Exp $") 42 #endif 43 44 ENTRY(sigsetjmp) 45 tst r5, r5 46 mov.l r5, @(_JB_HAS_MASK * 4, r4) 47 bt 2f /* if (savemask == 0) */ 48 49 PIC_PROLOGUE(.L_got_1) 50 sts.l pr, @-sp 51 mov.l r4, @-sp 52 53 mov.l .L_sigblock, r0 54 1: CALL r0 /* int mask = sigblock(0); */ 55 mov #0, r4 56 57 mov.l @sp+, r4 58 lds.l @sp+, pr 59 PIC_EPILOGUE 60 61 mov.l r0, @(_JB_SIGMASK * 4, r4) 62 63 2: /* identical to _setjmp sans mask */ 64 add #((_JB_REG_R15 + 1) * 4), r4 65 mov.l r15, @-r4 66 mov.l r14, @-r4 67 mov.l r13, @-r4 68 mov.l r12, @-r4 69 mov.l r11, @-r4 70 mov.l r10, @-r4 71 mov.l r9, @-r4 72 mov.l r8, @-r4 73 sts.l pr, @-r4 74 rts 75 xor r0, r0 76 77 .align 2 78 .L_got_1: PIC_GOT_DATUM 79 .L_sigblock: CALL_DATUM(_C_LABEL(sigblock), 1b) 80 SET_ENTRY_SIZE(sigsetjmp) 81 82 83 ENTRY(siglongjmp) 84 mov.l @(_JB_HAS_MASK * 4, r4), r0 85 tst r0, r0 86 bt 2f /* if no mask */ 87 88 /* we won't return here, so we don't need to save pr and r12 */ 89 PIC_PROLOGUE_NOSAVE(.L_got_2) 90 mov.l r5, @-sp 91 mov.l r4, @-sp 92 93 mov.l .L_sigsetmask, r0 94 1: CALL r0 /* sigsetmask(saved mask) */ 95 mov.l @(_JB_SIGMASK * 4, r4), r4 96 97 mov.l @sp+, r4 98 mov.l @sp+, r5 99 100 2: /* identical to _longjmp */ 101 lds.l @r4+, pr 102 mov.l @r4+, r8 103 mov.l @r4+, r9 104 mov.l @r4+, r10 105 mov.l @r4+, r11 106 mov.l @r4+, r12 107 mov.l @r4+, r13 108 mov.l @r4+, r14 109 mov.l @r4+, r15 110 111 mov r5, r0 112 tst r0, r0 /* make sure return value is non-zero */ 113 bf .L0 114 add #1, r0 115 .L0: 116 rts 117 nop 118 119 .align 2 120 .L_got_2: PIC_GOT_DATUM 121 .L_sigsetmask: CALL_DATUM(_C_LABEL(sigsetmask), 1b) 122 SET_ENTRY_SIZE(siglongjmp) 123
Indexes created Wed Oct 15 16:09:53 GMT 2025