X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/de355530ae67247cbd0da700edb3a2a1dae884c2..89b3af67bb32e691275bf6fa803d1834b2284115:/bsd/uxkern/ux_exception.c diff --git a/bsd/uxkern/ux_exception.c b/bsd/uxkern/ux_exception.c index 2b6a4750d..7764e78c9 100644 --- a/bsd/uxkern/ux_exception.c +++ b/bsd/uxkern/ux_exception.c @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * 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. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Mach Operating System @@ -39,11 +45,12 @@ #include #include #include +#include #include +#include #include #include #include -#include #include #include @@ -51,13 +58,35 @@ #include #include +#include /* get_task_ipcspace() */ + +/* + * XXX Things that should be retrieved from Mach headers, but aren't + */ +struct ipc_object; +extern kern_return_t ipc_object_copyin(ipc_space_t space, mach_port_name_t name, + mach_msg_type_name_t msgt_name, struct ipc_object **objectp); +extern mach_msg_return_t mach_msg_receive(mach_msg_header_t *msg, + mach_msg_option_t option, mach_msg_size_t rcv_size, + mach_port_name_t rcv_name, mach_msg_timeout_t rcv_timeout, + void (*continuation)(mach_msg_return_t), + mach_msg_size_t slist_size); +extern mach_msg_return_t mach_msg_send(mach_msg_header_t *msg, + mach_msg_option_t option, mach_msg_size_t send_size, + mach_msg_timeout_t send_timeout, mach_port_name_t notify); +extern thread_t convert_port_to_thread(ipc_port_t port); +extern void ipc_port_release(ipc_port_t); + + + + /* * Unix exception handler. */ -static void ux_exception(); +static void ux_exception(int exception, int code, int subcode, + int *ux_signal, int *ux_code); -decl_simple_lock_data(static, ux_handler_init_lock) mach_port_name_t ux_exception_port; static task_t ux_handler_self; @@ -154,43 +183,33 @@ ux_handler(void) void ux_handler_init(void) { - task_t handler_task; - - simple_lock_init(&ux_handler_init_lock); ux_exception_port = MACH_PORT_NULL; - if (kernel_task_create(kernel_task, - 0, 0, &handler_task) != MACH_MSG_SUCCESS) { - panic("Failed to created ux handler task\n"); - } - (void) kernel_thread(handler_task, ux_handler); - simple_lock(&ux_handler_init_lock); + (void) kernel_thread(kernel_task, ux_handler); if (ux_exception_port == MACH_PORT_NULL) { - simple_unlock(&ux_handler_init_lock); assert_wait(&ux_exception_port, THREAD_UNINT); thread_block(THREAD_CONTINUE_NULL); } - else - simple_unlock(&ux_handler_init_lock); } kern_return_t catch_exception_raise( - mach_port_name_t exception_port, - mach_port_name_t thread_name, - mach_port_name_t task_name, - int exception, - exception_data_t code, - mach_msg_type_number_t codecnt + __unused mach_port_t exception_port, + mach_port_t thread, + mach_port_t task, + exception_type_t exception, + exception_data_t code, + __unused mach_msg_type_number_t codeCnt ) { task_t self = current_task(); - thread_act_t th_act; + thread_t th_act; ipc_port_t thread_port; - ipc_port_t task_port; kern_return_t result = MACH_MSG_SUCCESS; - int signal = 0; + int ux_signal = 0; u_long ucode = 0; struct uthread *ut; + mach_port_name_t thread_name = (mach_port_name_t)thread; /* XXX */ + mach_port_name_t task_name = (mach_port_name_t)task; /* XXX */ /* * Convert local thread name to global port. @@ -200,31 +219,35 @@ catch_exception_raise( MACH_MSG_TYPE_PORT_SEND, (void *) &thread_port) == MACH_MSG_SUCCESS)) { if (IPC_PORT_VALID(thread_port)) { - th_act = (thread_act_t)convert_port_to_act(thread_port); + th_act = convert_port_to_thread(thread_port); ipc_port_release(thread_port); } else { - th_act = THR_ACT_NULL; + th_act = THREAD_NULL; } /* * Catch bogus ports */ - if (th_act != THR_ACT_NULL) { + if (th_act != THREAD_NULL) { /* * Convert exception to unix signal and code. */ ut = get_bsdthread_info(th_act); ux_exception(exception, code[0], code[1], - &signal, &ucode); + &ux_signal, (int *)&ucode); /* * Send signal. */ - if (signal != 0) - threadsignal(th_act, signal, ucode); + if (ux_signal != 0) { + ut->uu_exception = exception; + //ut->uu_code = code[0]; // filled in by threadsignal + ut->uu_subcode = code[1]; + threadsignal(th_act, ux_signal, code[0]); + } - act_deallocate(th_act); + thread_deallocate(th_act); } else result = KERN_INVALID_ARGUMENT; @@ -236,23 +259,43 @@ catch_exception_raise( * Delete our send rights to the task and thread ports. */ (void)mach_port_deallocate(get_task_ipcspace(ux_handler_self), task_name); - (void)mach_port_deallocate(get_task_ipcspace(ux_handler_self),thread_name); + (void)mach_port_deallocate(get_task_ipcspace(ux_handler_self), thread_name); return (result); } + kern_return_t -catch_exception_raise_state(mach_port_name_t exception_port, int exception, exception_data_t code, mach_msg_type_number_t codeCnt, int flavor, thread_state_t old_state, int old_stateCnt, thread_state_t new_state, int new_stateCnt) +catch_exception_raise_state( + __unused mach_port_t exception_port, + __unused exception_type_t exception, + __unused const exception_data_t code, + __unused mach_msg_type_number_t codeCnt, + __unused int *flavor, + __unused const thread_state_t old_state, + __unused mach_msg_type_number_t old_stateCnt, + __unused thread_state_t new_state, + __unused mach_msg_type_number_t *new_stateCnt) { return(KERN_INVALID_ARGUMENT); } + kern_return_t -catch_exception_raise_state_identity(mach_port_name_t exception_port, mach_port_t thread, mach_port_t task, int exception, exception_data_t code, mach_msg_type_number_t codeCnt, int flavor, thread_state_t old_state, int old_stateCnt, thread_state_t new_state, int new_stateCnt) +catch_exception_raise_state_identity( + __unused mach_port_t exception_port, + __unused mach_port_t thread, + __unused mach_port_t task, + __unused exception_type_t exception, + __unused exception_data_t code, + __unused mach_msg_type_number_t codeCnt, + __unused int *flavor, + __unused thread_state_t old_state, + __unused mach_msg_type_number_t old_stateCnt, + __unused thread_state_t new_state, + __unused mach_msg_type_number_t *new_stateCnt) { return(KERN_INVALID_ARGUMENT); } -boolean_t machine_exception(); - /* * ux_exception translates a mach exception, code and subcode to * a signal and u.u_code. Calls machine_exception (machine dependent)