1 /* $NetBSD: __sigtramp2.S,v 1.4 2013/07/16 22:19:16 matt Exp $ */
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
32 * The m68k signal trampoline is invoked only to return from
33 * the signal; the kernel calls the signal handler directly.
35 * On entry, stack looks like:
37 * ucontext structure [12+sizeof(siginfo_t)]
38 * siginfo structure [12]
39 * pointer to ucontext structure [8]
40 * pointer to siginfo structure [4]
41 * sp-> signal number [0]
43 ENTRY_NOPROFILE(__sigtramp_siginfo_2)
44 movl 8(%sp),%a0 /* get pointer to ucontext */
45 movl %a0,4(%sp) /* put it in the argument slot */
46 /* fake return address already there */
48 movl %d0,4(%sp) /* error code */
49 SYSTRAP(exit) /* exit */
50 END(__sigtramp_siginfo_2)