xref: /minix3/lib/libc/arch/vax/sys/__sigtramp3.S (revision e415d488727a332a2c69df018aa35e2cecf4148a)
1/*	$NetBSD: __sigtramp3.S,v 1.2 2011/01/25 02:38:15 matt Exp $	*/
2
3/*
4 * Copyright (c) 2003 Matt Thomas <matt@3am-software.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * Signal trampoline; registers when called:
32 *	pc, psl - obvious
33 *	sp, ap - points to argument list
34 *	    4(ap) -- signo
35 *	    8(ap) -- pointer to siginfo
36 *	   12(ap) -- pointer to ucontext
37 *	fp - address of signal handler
38 */
39
40#include "SYS.h"
41
42#ifdef SYSLIBC_SCCS
43RCSID("$NetBSD: __sigtramp3.S,v 1.2 2011/01/25 02:38:15 matt Exp $")
44#endif
45
46	.text
47	_ALIGN_TEXT
48
49	.globl	_C_LABEL(__sigtramp_siginfo_3)
50_C_LABEL(__sigtramp_siginfo_3):
51	nop; nop
52	callg (%ap),(%fp)		# use global arg list
53	addl2 $8,%ap			# arg is pointer to ucontext
54	SYSTRAP(setcontext)		# exit from here
55	halt				# illegal insn
56