199767f8919635c4928607450d9e0abb932109ceToomas Soome/*-
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1990 The Regents of the University of California.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * This code is derived from software contributed to Berkeley by
199767f8919635c4928607450d9e0abb932109ceToomas Soome * William Jolitz.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * are met:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 4. Neither the name of the University nor the names of its contributors
199767f8919635c4928607450d9e0abb932109ceToomas Soome * may be used to endorse or promote products derived from this software
199767f8919635c4928607450d9e0abb932109ceToomas Soome * without specific prior written permission.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#if defined(LIBC_RCS) && !defined(lint)
199767f8919635c4928607450d9e0abb932109ceToomas Soome .text
199767f8919635c4928607450d9e0abb932109ceToomas Soome .asciz "$FreeBSD$"
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* LIBC_RCS and not lint */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * C library -- _setjmp, _longjmp
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * _longjmp(a,v)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * will generate a "return(v)" from the last call to
199767f8919635c4928607450d9e0abb932109ceToomas Soome * _setjmp(a)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * by restoring registers from the environment 'a'.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * The previous signal state is NOT restored.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/asm.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas SoomeENTRY(_setjmp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 4(%esp),%eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 0(%esp),%edx
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %edx, 0(%eax) /* rta */
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %ebx, 4(%eax)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %esp, 8(%eax)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %ebp,12(%eax)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %esi,16(%eax)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl %edi,20(%eax)
199767f8919635c4928607450d9e0abb932109ceToomas Soome xorl %eax,%eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome ret
199767f8919635c4928607450d9e0abb932109ceToomas SoomeEND(_setjmp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas SoomeENTRY(_longjmp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 4(%esp),%edx
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 8(%esp),%eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 0(%edx),%ecx
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 4(%edx),%ebx
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 8(%edx),%esp
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 12(%edx),%ebp
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 16(%edx),%esi
199767f8919635c4928607450d9e0abb932109ceToomas Soome movl 20(%edx),%edi
199767f8919635c4928607450d9e0abb932109ceToomas Soome testl %eax,%eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome jnz 1f
199767f8919635c4928607450d9e0abb932109ceToomas Soome incl %eax
199767f8919635c4928607450d9e0abb932109ceToomas Soome1: movl %ecx,0(%esp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome ret
199767f8919635c4928607450d9e0abb932109ceToomas SoomeEND(_longjmp)