123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960 |
- /* $FreeBSD$ */
- /* $NetBSD: sigcode.S,v 1.1 1999/11/17 14:56:11 kleink Exp $ */
- /*-
- * Copyright (C) 1995, 1996 Wolfgang Solfrank.
- * Copyright (C) 1995, 1996 TooLs GmbH.
- * All rights reserved.
- *
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by TooLs GmbH.
- * 4. The name of TooLs GmbH may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 <machine/asm.h>
- #include <sys/syscall.h>
- #include "assym.inc"
- /*
- * The following code gets copied to the top of the user stack on process
- * execution. It does signal trampolining on signal delivery.
- *
- * On entry r1 points to a struct sigframe at bottom of current stack.
- * All other registers are unchanged.
- */
- .globl CNAME(sigcode32),CNAME(szsigcode32)
- CNAME(sigcode32):
- addi 1,1,-32 /* reserved space for callee */
- blrl
- addi 3,1,32+SF_UC /* restore sp, and get &frame->sf_uc */
- li 0,SYS_sigreturn
- sc /* sigreturn(scp) */
- li 0,SYS_exit
- sc /* exit(errno) */
- endsigcode32:
-
- .data
- CNAME(szsigcode32):
- .long endsigcode32 - CNAME(sigcode32)
|