1/* $NetBSD: __sigtramp2.S,v 1.3 2009/12/14 01:07:42 matt Exp $ */ 2 3/*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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. 18 * 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. 30 */ 31 32#include "SYS.h" 33#include "assym.h" 34 35#if defined(SYSLIBC_SCCS) && !defined(lint) 36 RCSID("$NetBSD: __sigtramp2.S,v 1.3 2009/12/14 01:07:42 matt Exp $") 37#endif /* SYSLIBC_SCCS and not lint */ 38 39 40/* 41 * The MIPS signal trampoline is invoked only to return from 42 * the signal; the kernel calls the signal handler directly. 43 * 44 * On entry, stack looks like: 45 * 46 * sp -> siginfo_t structure 47 * sp + SIGINFO_SIZE -> ucontext_t structure 48 */ 49LEAF_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 */ 54END(__sigtramp_siginfo_2) 55