1*2fe8fb19SBen Gras/* $NetBSD: __sigtramp2.S,v 1.3 2009/12/14 01:07:42 matt Exp $ */ 2*2fe8fb19SBen Gras 3*2fe8fb19SBen Gras/*- 4*2fe8fb19SBen Gras * Copyright (c) 2002 The NetBSD Foundation, Inc. 5*2fe8fb19SBen Gras * All rights reserved. 6*2fe8fb19SBen Gras * 7*2fe8fb19SBen Gras * This code is derived from software contributed to The NetBSD Foundation 8*2fe8fb19SBen Gras * by Jason R. Thorpe. 9*2fe8fb19SBen Gras * 10*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 11*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions 12*2fe8fb19SBen Gras * are met: 13*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 14*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 15*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 16*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 17*2fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 18*2fe8fb19SBen Gras * 19*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*2fe8fb19SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*2fe8fb19SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*2fe8fb19SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*2fe8fb19SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*2fe8fb19SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*2fe8fb19SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*2fe8fb19SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*2fe8fb19SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*2fe8fb19SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*2fe8fb19SBen Gras * POSSIBILITY OF SUCH DAMAGE. 30*2fe8fb19SBen Gras */ 31*2fe8fb19SBen Gras 32*2fe8fb19SBen Gras#include "SYS.h" 33*2fe8fb19SBen Gras#include "assym.h" 34*2fe8fb19SBen Gras 35*2fe8fb19SBen Gras#if defined(SYSLIBC_SCCS) && !defined(lint) 36*2fe8fb19SBen Gras RCSID("$NetBSD: __sigtramp2.S,v 1.3 2009/12/14 01:07:42 matt Exp $") 37*2fe8fb19SBen Gras#endif /* SYSLIBC_SCCS and not lint */ 38*2fe8fb19SBen Gras 39*2fe8fb19SBen Gras 40*2fe8fb19SBen Gras/* 41*2fe8fb19SBen Gras * The MIPS signal trampoline is invoked only to return from 42*2fe8fb19SBen Gras * the signal; the kernel calls the signal handler directly. 43*2fe8fb19SBen Gras * 44*2fe8fb19SBen Gras * On entry, stack looks like: 45*2fe8fb19SBen Gras * 46*2fe8fb19SBen Gras * sp -> siginfo_t structure 47*2fe8fb19SBen Gras * sp + SIGINFO_SIZE -> ucontext_t structure 48*2fe8fb19SBen Gras */ 49*2fe8fb19SBen GrasLEAF_NOPROFILE(__sigtramp_siginfo_2) 50*2fe8fb19SBen Gras PTR_ADDU a0, sp, SIGINFO_SIZE /* address of ucontext */ 51*2fe8fb19SBen Gras SYSTRAP(setcontext) /* and do setcontext */ 52*2fe8fb19SBen Gras move a0, v0 /* exit with errno */ 53*2fe8fb19SBen Gras SYSTRAP(exit) /* if sigreturn fails */ 54*2fe8fb19SBen GrasEND(__sigtramp_siginfo_2) 55