1 /* $NetBSD: compat___sigtramp1.S,v 1.3 2014/05/23 02:34:33 uebayasi Exp $ */
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
35 * The i386 signal trampoline is invoked only to return from
36 * the signal; the kernel calls the signal handler directly.
38 * On entry, stack looks like:
40 * sigcontext structure [12]
41 * pointer to sigcontext structure [8]
42 * signal specific code [4]
43 * sp-> signal number [0]
45 NENTRY(__sigtramp_sigcontext_1)
46 leal 12(%esp),%eax /* get pointer to sigcontext */
47 movl %eax,4(%esp) /* put it in the argument slot */
48 /* fake return address already there */
49 SYSTRAP(compat_16___sigreturn14) /* do sigreturn */
50 movl %eax,4(%esp) /* error code */
51 SYSTRAP(exit) /* exit */
52 END(__sigtramp_sigcontext_1)