e04d06c9bb
blocked in the kernel. The task that catched the exception may unblock it by sending a reply to the exception message (Of course it will have to change something so that the exception is not immediatly raised again). Handling of this reply is a bit complicated, as the kernel acts as the client instead of the server. In this situation, we receive a message but we will not send any reply (the message we receive is already a reply). I have not found anything better than a special case in mach_msg_overwrite_trap() to handle this. A surprise: exceptions ports are preserved accross forks. While we are there, use appropriate 64 bit types for make_memory_entry_64.
198 lines
6.6 KiB
C
198 lines
6.6 KiB
C
/* $NetBSD: mach_notify.h,v 1.5 2003/11/18 01:40:18 manu Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACH_NOTIFICATION_H_
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#define _MACH_NOTIFICATION_H_
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/* Notifications */
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#define MACH_NOTIFY_DELETED_MSGID 65
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#define MACH_NOTIFY_DESTROYED_MSGID 69
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#define MACH_NOTIFY_NO_SENDERS_MSGID 70
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#define MACH_NOTIFY_SEND_ONCE_MSGID 71
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#define MACH_NOTIFY_DEAD_NAME_MSGID 72
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_ndr_record_t req_ndr;
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mach_port_name_t req_name;
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mach_msg_trailer_t req_trailer;
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} mach_notify_port_deleted_request_t;
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_msg_body_t req_body;
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mach_msg_port_descriptor_t req_rights;
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mach_msg_trailer_t req_trailer;
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} mach_notify_port_destroyed_request_t;
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_ndr_record_t req_ndr;
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mach_port_mscount_t req_mscount;
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mach_msg_trailer_t req_trailer;
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} mach_notify_port_no_senders_request_t;
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_msg_trailer_t req_trailer;
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} mach_notify_send_once_request_t;
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_ndr_record_t req_ndr;
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mach_port_name_t req_name;
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mach_msg_trailer_t req_trailer;
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} mach_notify_port_dead_name_request_t;
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void mach_notify_port_destroyed(struct lwp *, struct mach_right *);
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void mach_notify_port_no_senders(struct lwp *, struct mach_right *);
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void mach_notify_port_dead_name(struct lwp *, struct mach_right *);
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/* Exceptions */
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#define MACH_EXC_BAD_ACCESS 1
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#define MACH_EXC_BAD_INSTRUCTION 2
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#define MACH_EXC_ARITHMETIC 3
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#define MACH_EXC_EMULATION 4
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#define MACH_EXC_SOFTWARE 5
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#define MACH_EXC_BREAKPOINT 6
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#define MACH_EXC_SYSCALL 7
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#define MACH_EXC_MACH_SYSCALL 8
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#define MACH_EXC_RPC_ALERT 9
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#define MACH_EXC_MAX MACH_EXC_RPC_ALERT
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#define MACH_EXC_MASK_BAD_ACCESS (1 << MACH_EXC_BAD_ACCESS)
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#define MACH_EXC_MASK_BAD_INSTRUCTION (1 << MACH_EXC_BAD_INSTRUCTION)
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#define MACH_EXC_MASK_ARITHMETIC (1 << MACH_EXC_ARITHMETIC)
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#define MACH_EXC_MASK_EMULATION (1 << MACH_EXC_EMULATION)
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#define MACH_EXC_MASK_SOFTWARE (1 << MACH_EXC_SOFTWARE)
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#define MACH_EXC_MASK_BREAKPOINT (1 << MACH_EXC_BREAKPOINT)
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#define MACH_EXC_MASK_SYSCALL (1 << MACH_EXC_SYSCALL)
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#define MACH_EXC_MASK_MACH_SYSCALL (1 << MACH_EXC_MACH_SYSCALL)
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#define MACH_EXC_MASK_RPC_ALERT (1 << MACH_EXC_RPC_ALERT)
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/* exceptions codes */
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#define MACH_BUS_ADRALN 1
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#define MACH_SEGV_MAPERR 2
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#define MACH_TRAP_BRKPT 1
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#define MACH_ILL_ILLOPC 2
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#define MACH_ILL_PRVOPC 3
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/* Exception behaviors and associated messages Id */
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#define MACH_EXCEPTION_DEFAULT 1
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#define MACH_EXCEPTION_STATE 2
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#define MACH_EXCEPTION_STATE_IDENTITY 3
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#define MACH_EXC_RAISE_MSGID 2401
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#define MACH_EXC_RAISE_STATE_MSGID 2402
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#define MACH_EXC_RAISE_STATE_IDENTITY_MSGID 2403
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/* exception_raise. The kernel is the client, not the server */
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_msg_body_t req_body;
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mach_msg_port_descriptor_t req_thread;
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mach_msg_port_descriptor_t req_task;
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mach_ndr_record_t req_ndr;
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mach_exception_type_t req_exc;
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mach_msg_type_number_t req_codecount;
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mach_integer_t req_code[2];
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mach_msg_trailer_t req_trailer;
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} mach_exception_raise_request_t;
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typedef struct {
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mach_msg_header_t rep_msgh;
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mach_ndr_record_t rep_ndr;
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mach_kern_return_t rep_retval;
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} mach_exception_raise_reply_t;
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/* exception_raise_state. The kernel is the client, not the server */
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_ndr_record_t req_ndr;
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mach_exception_type_t req_exc;
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mach_msg_type_number_t req_codecount;
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mach_integer_t req_code[2];
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int req_flavor;
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mach_msg_type_number_t req_statecount;
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mach_natural_t req_state[144];
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mach_msg_trailer_t req_trailer;
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} mach_exception_raise_state_request_t;
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typedef struct {
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mach_msg_header_t rep_msgh;
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mach_ndr_record_t rep_ndr;
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mach_kern_return_t rep_retval;
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} mach_exception_raise_state_reply_t;
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/* exception_raise_state_identity. The kernel is the client, not the server */
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typedef struct {
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mach_msg_header_t req_msgh;
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mach_msg_body_t req_body;
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mach_msg_port_descriptor_t req_thread;
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mach_msg_port_descriptor_t req_task;
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mach_ndr_record_t req_ndr;
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mach_exception_type_t req_exc;
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mach_msg_type_number_t req_codecount;
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mach_integer_t req_code[2];
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int req_flavor;
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mach_msg_type_number_t req_statecount;
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mach_natural_t req_state[144];
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mach_msg_trailer_t req_trailer;
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} mach_exception_raise_state_identity_request_t;
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typedef struct {
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mach_msg_header_t rep_msgh;
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mach_ndr_record_t rep_ndr;
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mach_kern_return_t rep_retval;
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} mach_exception_raise_state_identity_reply_t;
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void mach_trapsignal(struct lwp *, const struct ksiginfo *);
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int mach_trapsignal1(struct lwp *, const struct ksiginfo *);
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int mach_exception(struct lwp *, const struct ksiginfo *,
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struct mach_port *, int, struct mach_right *, struct mach_right *);
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#endif /* _MACH_NOTIFICATION_H_ */
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