1/* 2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * catch_exception_raise will be implemented by user programs 30 * This implementation is provided to resolve the reference in 31 * exc_server(). 32 */ 33 34#include <mach/boolean.h> 35#include <mach/message.h> 36#include <mach/exception.h> 37#include <mach/mig_errors.h> 38#include <dlfcn.h> 39#include <stdlib.h> 40 41__private_extern__ kern_return_t internal_catch_exception_raise ( 42 mach_port_t exception_port, 43 mach_port_t thread, 44 mach_port_t task, 45 exception_type_t exception, 46 exception_data_t code, 47 mach_msg_type_number_t codeCnt) 48{ 49#if defined(__DYNAMIC__) 50 static int checkForFunction = 0; 51 /* This will be non-zero if the user has defined this function */ 52 static kern_return_t (*func)(mach_port_t, mach_port_t, mach_port_t, exception_type_t, exception_data_t, mach_msg_type_number_t); 53 if (checkForFunction == 0) { 54 checkForFunction = 1; 55 func = dlsym(RTLD_DEFAULT, "catch_exception_raise"); 56 } 57 if (func == 0) { 58 /* The user hasn't defined catch_exception_raise in their binary */ 59 abort(); 60 } 61 return (*func)(exception_port, thread, task, exception, code, codeCnt); 62#else 63 extern kern_return_t catch_exception_raise(mach_port_t, mach_port_t, mach_port_t, exception_type_t, exception_data_t, mach_msg_type_number_t); 64 return catch_exception_raise(exception_port, thread, task, exception, code, codeCnt); 65#endif 66} 67 68