1*dc9b124dSJustin Hibbits/*- 2*dc9b124dSJustin Hibbits * Copyright (c) 2016 Justin Hibbits 3*dc9b124dSJustin Hibbits * All rights reserved. 4*dc9b124dSJustin Hibbits * 5*dc9b124dSJustin Hibbits * Redistribution and use in source and binary forms, with or without 6*dc9b124dSJustin Hibbits * modification, are permitted provided that the following conditions 7*dc9b124dSJustin Hibbits * are met: 8*dc9b124dSJustin Hibbits * 1. Redistributions of source code must retain the above copyright 9*dc9b124dSJustin Hibbits * notice, this list of conditions and the following disclaimer. 10*dc9b124dSJustin Hibbits * 2. Redistributions in binary form must reproduce the above copyright 11*dc9b124dSJustin Hibbits * notice, this list of conditions and the following disclaimer in the 12*dc9b124dSJustin Hibbits * documentation and/or other materials provided with the distribution. 13*dc9b124dSJustin Hibbits * 14*dc9b124dSJustin Hibbits * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15*dc9b124dSJustin Hibbits * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*dc9b124dSJustin Hibbits * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*dc9b124dSJustin Hibbits * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18*dc9b124dSJustin Hibbits * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*dc9b124dSJustin Hibbits * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*dc9b124dSJustin Hibbits * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*dc9b124dSJustin Hibbits * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22*dc9b124dSJustin Hibbits * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23*dc9b124dSJustin Hibbits * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*dc9b124dSJustin Hibbits * SUCH DAMAGE. 25*dc9b124dSJustin Hibbits */ 26*dc9b124dSJustin Hibbits/* $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $ */ 27*dc9b124dSJustin Hibbits 28*dc9b124dSJustin Hibbits#include <machine/asm.h> 29*dc9b124dSJustin Hibbits/* 30*dc9b124dSJustin Hibbits * C library -- _setjmp, _longjmp 31*dc9b124dSJustin Hibbits * 32*dc9b124dSJustin Hibbits * _longjmp(a,v) 33*dc9b124dSJustin Hibbits * will generate a "return(v?v:1)" from the last call to 34*dc9b124dSJustin Hibbits * _setjmp(a) 35*dc9b124dSJustin Hibbits * by restoring registers from the stack. 36*dc9b124dSJustin Hibbits * The previous signal state is NOT restored. 37*dc9b124dSJustin Hibbits * 38*dc9b124dSJustin Hibbits * jmpbuf layout: 39*dc9b124dSJustin Hibbits * +------------+ 40*dc9b124dSJustin Hibbits * | unused | 41*dc9b124dSJustin Hibbits * +------------+ 42*dc9b124dSJustin Hibbits * | unused | 43*dc9b124dSJustin Hibbits * | | 44*dc9b124dSJustin Hibbits * | (4 words) | 45*dc9b124dSJustin Hibbits * | | 46*dc9b124dSJustin Hibbits * +------------+ 47*dc9b124dSJustin Hibbits * | saved regs | 48*dc9b124dSJustin Hibbits * | ... | 49*dc9b124dSJustin Hibbits */ 50*dc9b124dSJustin Hibbits 51*dc9b124dSJustin HibbitsENTRY(_setjmp) 52*dc9b124dSJustin Hibbits mflr %r11 53*dc9b124dSJustin Hibbits mfcr %r12 54*dc9b124dSJustin Hibbits evstdd %r1,24+0*8(%r3) 55*dc9b124dSJustin Hibbits evstdd %r2,24+1*8(%r3) 56*dc9b124dSJustin Hibbits evstdd %r11,24+2*8(%r3) 57*dc9b124dSJustin Hibbits evstdd %r12,24+3*8(%r3) 58*dc9b124dSJustin Hibbits evstdd %r13,24+4*8(%r3) 59*dc9b124dSJustin Hibbits evstdd %r14,24+5*8(%r3) 60*dc9b124dSJustin Hibbits evstdd %r15,24+6*8(%r3) 61*dc9b124dSJustin Hibbits evstdd %r16,24+7*8(%r3) 62*dc9b124dSJustin Hibbits evstdd %r17,24+8*8(%r3) 63*dc9b124dSJustin Hibbits evstdd %r18,24+9*8(%r3) 64*dc9b124dSJustin Hibbits evstdd %r19,24+10*8(%r3) 65*dc9b124dSJustin Hibbits evstdd %r20,24+11*8(%r3) 66*dc9b124dSJustin Hibbits evstdd %r21,24+12*8(%r3) 67*dc9b124dSJustin Hibbits evstdd %r22,24+13*8(%r3) 68*dc9b124dSJustin Hibbits evstdd %r23,24+14*8(%r3) 69*dc9b124dSJustin Hibbits evstdd %r24,24+15*8(%r3) 70*dc9b124dSJustin Hibbits evstdd %r25,24+16*8(%r3) 71*dc9b124dSJustin Hibbits evstdd %r26,24+17*8(%r3) 72*dc9b124dSJustin Hibbits evstdd %r27,24+18*8(%r3) 73*dc9b124dSJustin Hibbits evstdd %r28,24+19*8(%r3) 74*dc9b124dSJustin Hibbits evstdd %r29,24+20*8(%r3) 75*dc9b124dSJustin Hibbits evstdd %r30,24+21*8(%r3) 76*dc9b124dSJustin Hibbits evstdd %r31,24+22*8(%r3) 77*dc9b124dSJustin Hibbits 78*dc9b124dSJustin Hibbits li %r3,0 79*dc9b124dSJustin Hibbits blr 80*dc9b124dSJustin HibbitsEND(_setjmp) 81*dc9b124dSJustin Hibbits 82*dc9b124dSJustin HibbitsENTRY(_longjmp) 83*dc9b124dSJustin Hibbits evldd %r1,24+0*8(%r3) 84*dc9b124dSJustin Hibbits evldd %r2,24+1*8(%r3) 85*dc9b124dSJustin Hibbits evldd %r11,24+2*8(%r3) 86*dc9b124dSJustin Hibbits evldd %r12,24+3*8(%r3) 87*dc9b124dSJustin Hibbits evldd %r13,24+4*8(%r3) 88*dc9b124dSJustin Hibbits evldd %r14,24+5*8(%r3) 89*dc9b124dSJustin Hibbits evldd %r15,24+6*8(%r3) 90*dc9b124dSJustin Hibbits evldd %r16,24+7*8(%r3) 91*dc9b124dSJustin Hibbits evldd %r17,24+8*8(%r3) 92*dc9b124dSJustin Hibbits evldd %r18,24+9*8(%r3) 93*dc9b124dSJustin Hibbits evldd %r19,24+10*8(%r3) 94*dc9b124dSJustin Hibbits evldd %r20,24+11*8(%r3) 95*dc9b124dSJustin Hibbits evldd %r21,24+12*8(%r3) 96*dc9b124dSJustin Hibbits evldd %r22,24+13*8(%r3) 97*dc9b124dSJustin Hibbits evldd %r23,24+14*8(%r3) 98*dc9b124dSJustin Hibbits evldd %r24,24+15*8(%r3) 99*dc9b124dSJustin Hibbits evldd %r25,24+16*8(%r3) 100*dc9b124dSJustin Hibbits evldd %r26,24+17*8(%r3) 101*dc9b124dSJustin Hibbits evldd %r27,24+18*8(%r3) 102*dc9b124dSJustin Hibbits evldd %r28,24+19*8(%r3) 103*dc9b124dSJustin Hibbits evldd %r29,24+20*8(%r3) 104*dc9b124dSJustin Hibbits evldd %r30,24+21*8(%r3) 105*dc9b124dSJustin Hibbits evldd %r31,24+22*8(%r3) 106*dc9b124dSJustin Hibbits 107*dc9b124dSJustin Hibbits mtlr %r11 108*dc9b124dSJustin Hibbits mtcr %r12 109*dc9b124dSJustin Hibbits or. %r3,%r4,%r4 110*dc9b124dSJustin Hibbits bnelr 111*dc9b124dSJustin Hibbits li %r3,1 112*dc9b124dSJustin Hibbits blr 113*dc9b124dSJustin HibbitsEND(_longjmp) 114*dc9b124dSJustin Hibbits 115*dc9b124dSJustin Hibbits .section .note.GNU-stack,"",%progbits 116