/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ #import "sigcatch.h" #import <signal.h> #import <sys/signal.h> #import <ucontext.h> /* * sigvec registers _sigtramp as the handler for any signal requiring * user-mode intervention. All _sigtramp does is find the real handler, * calls it, then sigreturn's. * * Note that the kernel saves/restores all of our register state. */ #if defined(__DYNAMIC__) int __in_sigtramp = 0; #endif void _sigtramp( union __sigaction_u __sigaction_u, int sigstyle, int sig, siginfo_t *sinfo, struct ucontext *uctx ) { #if defined(__DYNAMIC__) __in_sigtramp++; #endif if (sigstyle == 1) sa_handler(sig); #ifdef __ppc__ else sa_sigaction(sig, sinfo, uctx); #endif /* __ppc__ */ #if defined(__DYNAMIC__) __in_sigtramp--; #endif sigreturn(uctx); }