/* $NetBSD: netbsd32_sigcode.S,v 1.7 2008/04/28 20:23:12 martin Exp $ */ /*- * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "assym.h" #include <machine/asm.h> #include <sys/syscall.h> /* * Signal trampoline for 1.6 compatibility; copied to top of user stack. */ NENTRY(netbsd32_sigcode) .code32 /* * Handler has returned here as if we called it. The sigcontext * is on the stack after the 3 args "we" pushed. */ leal 12(%esp),%eax # get pointer to sigcontext movl %eax,4(%esp) # put it in the argument slot # fake return address already there movl $SYS_compat_16___sigreturn14,%eax int $0x80 # enter kernel with args on stack movl $SYS_exit,%eax int $0x80 # exit if sigreturn fails .globl _C_LABEL(netbsd32_esigcode) _C_LABEL(netbsd32_esigcode): /* * There is no NetBSD-1.6 compatibility for native code. * COMPAT_16 is useful for i386 emulation (COMPAT_NETBSD32) only. */ .globl _C_LABEL(sigcode), _C_LABEL(esigcode) .set _C_LABEL(sigcode),0 .set _C_LABEL(esigcode),0