1c3e289e1SNathan Whitehorn/* $NetBSD: sigcode.S,v 1.1 1999/11/17 14:56:11 kleink Exp $ */ 2c3e289e1SNathan Whitehorn 3c3e289e1SNathan Whitehorn/*- 4c3e289e1SNathan Whitehorn * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5c3e289e1SNathan Whitehorn * Copyright (C) 1995, 1996 TooLs GmbH. 6c3e289e1SNathan Whitehorn * All rights reserved. 7c3e289e1SNathan Whitehorn * 8c3e289e1SNathan Whitehorn * Redistribution and use in source and binary forms, with or without 9c3e289e1SNathan Whitehorn * modification, are permitted provided that the following conditions 10c3e289e1SNathan Whitehorn * are met: 11c3e289e1SNathan Whitehorn * 1. Redistributions of source code must retain the above copyright 12c3e289e1SNathan Whitehorn * notice, this list of conditions and the following disclaimer. 13c3e289e1SNathan Whitehorn * 2. Redistributions in binary form must reproduce the above copyright 14c3e289e1SNathan Whitehorn * notice, this list of conditions and the following disclaimer in the 15c3e289e1SNathan Whitehorn * documentation and/or other materials provided with the distribution. 16c3e289e1SNathan Whitehorn * 3. All advertising materials mentioning features or use of this software 17c3e289e1SNathan Whitehorn * must display the following acknowledgement: 18c3e289e1SNathan Whitehorn * This product includes software developed by TooLs GmbH. 19c3e289e1SNathan Whitehorn * 4. The name of TooLs GmbH may not be used to endorse or promote products 20c3e289e1SNathan Whitehorn * derived from this software without specific prior written permission. 21c3e289e1SNathan Whitehorn * 22c3e289e1SNathan Whitehorn * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23c3e289e1SNathan Whitehorn * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24c3e289e1SNathan Whitehorn * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25c3e289e1SNathan Whitehorn * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26c3e289e1SNathan Whitehorn * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27c3e289e1SNathan Whitehorn * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28c3e289e1SNathan Whitehorn * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29c3e289e1SNathan Whitehorn * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30c3e289e1SNathan Whitehorn * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31c3e289e1SNathan Whitehorn * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32c3e289e1SNathan Whitehorn */ 33c3e289e1SNathan Whitehorn 34c3e289e1SNathan Whitehorn#include <machine/asm.h> 35c3e289e1SNathan Whitehorn#include <sys/syscall.h> 36*fc2a8776SEd Maste#include "assym.inc" 37c3e289e1SNathan Whitehorn 38c3e289e1SNathan Whitehorn/* 39c3e289e1SNathan Whitehorn * The following code gets copied to the top of the user stack on process 40c3e289e1SNathan Whitehorn * execution. It does signal trampolining on signal delivery. 41c3e289e1SNathan Whitehorn * 42c3e289e1SNathan Whitehorn * On entry r1 points to a struct sigframe at bottom of current stack. 43c3e289e1SNathan Whitehorn * All other registers are unchanged. 44c3e289e1SNathan Whitehorn */ 45c3e289e1SNathan Whitehorn .globl CNAME(sigcode32),CNAME(szsigcode32) 46c3e289e1SNathan WhitehornCNAME(sigcode32): 47a4d64816SJustin Hibbits addi 1,1,-32 /* reserved space for callee */ 48c3e289e1SNathan Whitehorn blrl 49a4d64816SJustin Hibbits addi 3,1,32+SF_UC /* restore sp, and get &frame->sf_uc */ 50c3e289e1SNathan Whitehorn li 0,SYS_sigreturn 51c3e289e1SNathan Whitehorn sc /* sigreturn(scp) */ 52c3e289e1SNathan Whitehorn li 0,SYS_exit 53c3e289e1SNathan Whitehorn sc /* exit(errno) */ 54c3e289e1SNathan Whitehornendsigcode32: 55c3e289e1SNathan Whitehorn 56c3e289e1SNathan Whitehorn .data 57c3e289e1SNathan WhitehornCNAME(szsigcode32): 58c3e289e1SNathan Whitehorn .long endsigcode32 - CNAME(sigcode32) 59