1*4a5d661aSToomas Soome/*- 2*4a5d661aSToomas Soome * Copyright (c) 1990 The Regents of the University of California. 3*4a5d661aSToomas Soome * All rights reserved. 4*4a5d661aSToomas Soome * 5*4a5d661aSToomas Soome * This code is derived from software contributed to Berkeley by 6*4a5d661aSToomas Soome * William Jolitz. 7*4a5d661aSToomas Soome * 8*4a5d661aSToomas Soome * Redistribution and use in source and binary forms, with or without 9*4a5d661aSToomas Soome * modification, are permitted provided that the following conditions 10*4a5d661aSToomas Soome * are met: 11*4a5d661aSToomas Soome * 1. Redistributions of source code must retain the above copyright 12*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer. 13*4a5d661aSToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 14*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer in the 15*4a5d661aSToomas Soome * documentation and/or other materials provided with the distribution. 16*4a5d661aSToomas Soome * 4. Neither the name of the University nor the names of its contributors 17*4a5d661aSToomas Soome * may be used to endorse or promote products derived from this software 18*4a5d661aSToomas Soome * without specific prior written permission. 19*4a5d661aSToomas Soome * 20*4a5d661aSToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21*4a5d661aSToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22*4a5d661aSToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23*4a5d661aSToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24*4a5d661aSToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25*4a5d661aSToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26*4a5d661aSToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27*4a5d661aSToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28*4a5d661aSToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29*4a5d661aSToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30*4a5d661aSToomas Soome * SUCH DAMAGE. 31*4a5d661aSToomas Soome */ 32*4a5d661aSToomas Soome 33*4a5d661aSToomas Soome#if defined(LIBC_RCS) && !defined(lint) 34*4a5d661aSToomas Soome .text 35*4a5d661aSToomas Soome .asciz "$FreeBSD$" 36*4a5d661aSToomas Soome#endif /* LIBC_RCS and not lint */ 37*4a5d661aSToomas Soome 38*4a5d661aSToomas Soome/* 39*4a5d661aSToomas Soome * C library -- _setjmp, _longjmp 40*4a5d661aSToomas Soome * 41*4a5d661aSToomas Soome * _longjmp(a,v) 42*4a5d661aSToomas Soome * will generate a "return(v)" from the last call to 43*4a5d661aSToomas Soome * _setjmp(a) 44*4a5d661aSToomas Soome * by restoring registers from the environment 'a'. 45*4a5d661aSToomas Soome * The previous signal state is NOT restored. 46*4a5d661aSToomas Soome */ 47*4a5d661aSToomas Soome 48*4a5d661aSToomas Soome#include <machine/asm.h> 49*4a5d661aSToomas Soome 50*4a5d661aSToomas SoomeENTRY(_setjmp) 51*4a5d661aSToomas Soome movl 4(%esp),%eax 52*4a5d661aSToomas Soome movl 0(%esp),%edx 53*4a5d661aSToomas Soome movl %edx, 0(%eax) /* rta */ 54*4a5d661aSToomas Soome movl %ebx, 4(%eax) 55*4a5d661aSToomas Soome movl %esp, 8(%eax) 56*4a5d661aSToomas Soome movl %ebp,12(%eax) 57*4a5d661aSToomas Soome movl %esi,16(%eax) 58*4a5d661aSToomas Soome movl %edi,20(%eax) 59*4a5d661aSToomas Soome xorl %eax,%eax 60*4a5d661aSToomas Soome ret 61*4a5d661aSToomas SoomeEND(_setjmp) 62*4a5d661aSToomas Soome 63*4a5d661aSToomas SoomeENTRY(_longjmp) 64*4a5d661aSToomas Soome movl 4(%esp),%edx 65*4a5d661aSToomas Soome movl 8(%esp),%eax 66*4a5d661aSToomas Soome movl 0(%edx),%ecx 67*4a5d661aSToomas Soome movl 4(%edx),%ebx 68*4a5d661aSToomas Soome movl 8(%edx),%esp 69*4a5d661aSToomas Soome movl 12(%edx),%ebp 70*4a5d661aSToomas Soome movl 16(%edx),%esi 71*4a5d661aSToomas Soome movl 20(%edx),%edi 72*4a5d661aSToomas Soome testl %eax,%eax 73*4a5d661aSToomas Soome jnz 1f 74*4a5d661aSToomas Soome incl %eax 75*4a5d661aSToomas Soome1: movl %ecx,0(%esp) 76*4a5d661aSToomas Soome ret 77*4a5d661aSToomas SoomeEND(_longjmp) 78