1 /* $NetBSD: __sigtramp2.S,v 1.2 2008/04/28 20:22:56 martin 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 #if defined(SYSLIBC_SCCS) && !defined(lint)
37 #endif /* SYSLIBC_SCCS and not lint */
41 * The MIPS signal trampoline is invoked only to return from
42 * the signal; the kernel calls the signal handler directly.
44 * On entry, stack looks like:
46 * sp -> siginfo_t structure
47 * sp + SIGINFO_SIZE -> ucontext_t structure
49 LEAF_NOPROFILE(__sigtramp_siginfo_2)
50 PTR_ADDU a0, sp, SIGINFO_SIZE /* address of ucontext */
51 SYSTRAP(setcontext) /* and do setcontext */
52 move a0, v0 /* exit with errno */
53 SYSTRAP(exit) /* if sigreturn fails */
54 END(__sigtramp_siginfo_2)