1/* $NetBSD: sigcode.s,v 1.11 2002/07/04 01:50:40 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1980, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: locore.s 1.66 92/12/22$ 41 * 42 * @(#)locore.s 8.6 (Berkeley) 5/27/94 43 */ 44 45/* 46 * NOTICE: This is not a standalone file. To use it, #include it in 47 * your port's locore.s, like so: 48 * 49 * #include <m68k/m68k/sigcode.s> 50 */ 51 52/* 53 * Signal trampoline; copied to top of user stack. 54 * 55 * The handler has returned here as if we had called it. On 56 * entry, the stack looks like: 57 * 58 * sigcontext structure [12] 59 * pointer to sigcontext structure [8] 60 * signal specific code [4] 61 * sp-> signal number [0] 62 */ 63 64 .data 65 .align 2 66GLOBAL(sigcode) 67 leal %sp@(12),%a0 /* get pointer to sigcontext */ 68 movl %a0,%sp@(4) /* put it in the argument slot */ 69 /* fake return address already there */ 70 trap #3 /* special sigreturn trap */ 71 movl %d0,%sp@(4) /* exit with errno */ 72 moveq #SYS_exit,%d0 /* if sigreturn fails */ 73 trap #0 74 75 .align 2 76GLOBAL(esigcode) 77