1107571Sgrehan/*- 2107571Sgrehan * Copyright (c) 2002 Peter Grehan. 3107571Sgrehan * All rights reserved. 4107571Sgrehan * 5107571Sgrehan * Redistribution and use in source and binary forms, with or without 6107571Sgrehan * modification, are permitted provided that the following conditions 7107571Sgrehan * are met: 8107571Sgrehan * 1. Redistributions of source code must retain the above copyright 9107571Sgrehan * notice, this list of conditions and the following disclaimer. 10107571Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 11107571Sgrehan * notice, this list of conditions and the following disclaimer in the 12107571Sgrehan * documentation and/or other materials provided with the distribution. 13107571Sgrehan * 14107571Sgrehan * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15107571Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16107571Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17107571Sgrehan * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18107571Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19107571Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20107571Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21107571Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22107571Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23107571Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24107571Sgrehan * SUCH DAMAGE. 25107571Sgrehan */ 26107571Sgrehan/* $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $ */ 27107571Sgrehan 28107571Sgrehan#include <machine/asm.h> 29107571Sgrehan__FBSDID("$FreeBSD$"); 30107571Sgrehan 31107571Sgrehan/* 32107571Sgrehan * C library -- _setjmp, _longjmp 33107571Sgrehan * 34107571Sgrehan * _longjmp(a,v) 35107571Sgrehan * will generate a "return(v?v:1)" from the last call to 36107571Sgrehan * _setjmp(a) 37107571Sgrehan * by restoring registers from the stack. 38107571Sgrehan * The previous signal state is NOT restored. 39107571Sgrehan * 40107571Sgrehan * jmpbuf layout: 41107571Sgrehan * +------------+ 42107571Sgrehan * | unused | 43107571Sgrehan * +------------+ 44107571Sgrehan * | unused | 45107571Sgrehan * | | 46107571Sgrehan * | (4 words) | 47107571Sgrehan * | | 48107571Sgrehan * +------------+ 49107571Sgrehan * | saved regs | 50107571Sgrehan * | ... | 51107571Sgrehan */ 52107571Sgrehan 53107571SgrehanENTRY(_setjmp) 54107571Sgrehan mflr %r11 55107571Sgrehan mfcr %r12 56107571Sgrehan mr %r10,%r1 57107571Sgrehan mr %r9,%r2 58107571Sgrehan stmw %r9,20(%r3) 59279784Snwhitehorn 60279784Snwhitehorn /* FPRs */ 61281243Sjhibbits stfd %f14,112+0*8(%r3) 62281243Sjhibbits stfd %f15,112+1*8(%r3) 63281243Sjhibbits stfd %f16,112+2*8(%r3) 64281243Sjhibbits stfd %f17,112+3*8(%r3) 65281243Sjhibbits stfd %f18,112+4*8(%r3) 66281243Sjhibbits stfd %f19,112+5*8(%r3) 67281243Sjhibbits stfd %f20,112+6*8(%r3) 68281243Sjhibbits stfd %f21,112+7*8(%r3) 69281243Sjhibbits stfd %f22,112+8*8(%r3) 70281243Sjhibbits stfd %f23,112+9*8(%r3) 71281243Sjhibbits stfd %f24,112+10*8(%r3) 72281243Sjhibbits stfd %f25,112+11*8(%r3) 73281243Sjhibbits stfd %f26,112+12*8(%r3) 74281243Sjhibbits stfd %f27,112+13*8(%r3) 75281243Sjhibbits stfd %f28,112+14*8(%r3) 76281243Sjhibbits stfd %f29,112+15*8(%r3) 77281243Sjhibbits stfd %f30,112+16*8(%r3) 78281243Sjhibbits stfd %f31,112+17*8(%r3) 79279784Snwhitehorn 80107571Sgrehan li %r3,0 81107571Sgrehan blr 82272362SbaptEND(_setjmp) 83107571Sgrehan 84107571SgrehanENTRY(_longjmp) 85107571Sgrehan lmw %r9,20(%r3) 86279784Snwhitehorn 87279784Snwhitehorn /* FPRs */ 88281243Sjhibbits lfd %f14,112+0*8(%r3) 89281243Sjhibbits lfd %f15,112+1*8(%r3) 90281243Sjhibbits lfd %f16,112+2*8(%r3) 91281243Sjhibbits lfd %f17,112+3*8(%r3) 92281243Sjhibbits lfd %f18,112+4*8(%r3) 93281243Sjhibbits lfd %f19,112+5*8(%r3) 94281243Sjhibbits lfd %f20,112+6*8(%r3) 95281243Sjhibbits lfd %f21,112+7*8(%r3) 96281243Sjhibbits lfd %f22,112+8*8(%r3) 97281243Sjhibbits lfd %f23,112+9*8(%r3) 98281243Sjhibbits lfd %f24,112+10*8(%r3) 99281243Sjhibbits lfd %f25,112+11*8(%r3) 100281243Sjhibbits lfd %f26,112+12*8(%r3) 101281243Sjhibbits lfd %f27,112+13*8(%r3) 102281243Sjhibbits lfd %f28,112+14*8(%r3) 103281243Sjhibbits lfd %f29,112+15*8(%r3) 104281243Sjhibbits lfd %f30,112+16*8(%r3) 105281243Sjhibbits lfd %f31,112+17*8(%r3) 106279784Snwhitehorn 107107571Sgrehan mtlr %r11 108107571Sgrehan mtcr %r12 109107571Sgrehan mr %r1,%r10 110107571Sgrehan or. %r3,%r4,%r4 111107571Sgrehan bnelr 112107571Sgrehan li %r3,1 113107571Sgrehan blr 114272362SbaptEND(_longjmp) 115217398Skib 116217398Skib .section .note.GNU-stack,"",%progbits 117