1/* $NetBSD: __sigtramp2.S,v 1.2 2006/11/08 21:16:40 drochner Exp $ */ 2 3/* 4 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#include "SYS.h" 31 32/* 33 * The Alpha signal trampoline is invoked only to return from 34 * the signal; the kernel calls the signal handler directly. 35 * 36 * On entry, the stack looks like: 37 * 38 * ucontext structure [128] == sp + sizeof(siginfo_t)] 39 * sp-> siginfo structure [0] 40 */ 41NESTED_NOPROFILE(__sigtramp_siginfo_2,0,0,ra,0,0) 42 ldgp gp,0(ra) 43 lda a0,(128)(sp) /* get pointer to ucontext */ 44 CALLSYS_NOERROR(setcontext) /* and call setcontext() with it */ 45 ldiq a0,-1 /* if that failed, set an exit code */ 46 CALLSYS_NOERROR(exit) /* and call exit() */ 47END(__sigtramp_siginfo_2) 48