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- /*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * Portions Copyright (c) 1999 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 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.
- *
- * 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.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- #ifndef _DYLD_DEBUG_
- #define _DYLD_DEBUG_
-
- #import <mach/mach.h>
- #ifndef DYLD_BUILD /* do not include this when building dyld itself */
- #import <mach-o/dyld.h>
- #endif /* !defined(DYLD_BUILD) */
- /*
- * The dyld debugging API.
- */
- enum dyld_debug_return {
- DYLD_SUCCESS,
- DYLD_INCONSISTENT_DATA,
- DYLD_INVALID_ARGUMENTS,
- DYLD_FAILURE
- };
-
- struct dyld_debug_module {
- struct mach_header *header;
- unsigned long vmaddr_slide;
- unsigned long module_index;
- };
-
- enum dyld_event_type {
- DYLD_IMAGE_ADDED,
- DYLD_MODULE_BOUND,
- DYLD_MODULE_REMOVED,
- DYLD_MODULE_REPLACED,
- DYLD_PAST_EVENTS_END,
- DYLD_IMAGE_REMOVED
- };
-
- struct dyld_event {
- enum dyld_event_type type;
- struct dyld_debug_module arg[2];
- };
-
- extern enum dyld_debug_return _dyld_debug_defining_module(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- char *name,
- struct dyld_debug_module *module);
-
- extern enum dyld_debug_return _dyld_debug_is_module_bound(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- struct dyld_debug_module module,
- boolean_t *bound);
-
- extern enum dyld_debug_return _dyld_debug_bind_module(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- struct dyld_debug_module module);
-
- extern enum dyld_debug_return _dyld_debug_module_name(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- struct dyld_debug_module module,
- char **image_name,
- unsigned long *image_nameCnt,
- char **module_name,
- unsigned long *module_nameCnt);
-
- extern enum dyld_debug_return _dyld_debug_subscribe_to_events(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- void (*dyld_event_routine)(struct dyld_event event));
-
- /*
- * _dyld_debug_add_event_subscriber() uses the mig interface functions below
- * to dispatch the dyld event messages from the subscriber port specified.
- */
- extern enum dyld_debug_return _dyld_debug_add_event_subscriber(
- mach_port_t target_task,
- unsigned long send_timeout,
- unsigned long rcv_timeout,
- boolean_t inconsistent_data_ok,
- mach_port_t subscriber);
-
- /*
- * These structures should be produced by mig(1) from the mig generated files
- * but they are not. These are really only needed so the correct size of the
- * request and reply messages can be allocated.
- */
- struct _dyld_event_message_request {
- #ifdef __MACH30__
- mach_msg_header_t head;
- NDR_record_t NDR;
- struct dyld_event event;
- mach_msg_trailer_t trailer;
- #else
- msg_header_t head;
- msg_type_t eventType;
- struct dyld_event event;
- #endif
- };
- struct _dyld_event_message_reply {
- #ifdef __MACH30__
- mach_msg_header_t head;
- NDR_record_t NDR;
- struct dyld_event event;
- #else
- msg_header_t head;
- msg_type_t RetCodeType;
- kern_return_t RetCode;
- #endif
- };
- #ifndef mig_internal
- /*
- * _dyld_event_server() is the mig generated routine to dispatch dyld event
- * messages.
- */
- extern boolean_t _dyld_event_server(
- #ifdef __MACH30__
- mach_msg_header_t *request,
- mach_msg_header_t *reply);
- #else
- struct _dyld_event_message_request *request,
- struct _dyld_event_message_reply *reply);
- #endif
- #endif /* mig_internal */
-
- #ifndef SHLIB
- /*
- * _dyld_event_server_callback() is the routine called by _dyld_event_server()
- * that must be written by users of _dyld_event_server().
- */
- extern
- #ifdef __MACH30__
- kern_return_t
- #else
- void
- #endif
- _dyld_event_server_callback(
- #ifdef __MACH30__
- mach_port_t subscriber,
- #else
- port_t subscriber,
- #endif
- struct dyld_event event);
- #endif /* SHLIB */
-
- /*
- * This is the state of the target task while we are sending a message to it.
- */
- struct _dyld_debug_task_state {
- mach_port_t debug_port;
- mach_port_t debug_thread;
- unsigned int debug_thread_resume_count;
- unsigned int task_resume_count;
- mach_port_t *threads;
- unsigned int thread_count;
- };
-
- /*
- * _dyld_debug_make_runnable() is called before sending messages to the
- * dynamic link editor. Basically it assures that the debugging
- * thread is the only runnable thread in the task to receive the
- * message. It also assures that the debugging thread is indeed
- * runnable if it was suspended. The function will make sure each
- * thread in the remote task is suspended and resumed the same number
- * of times, so in the end the suspend count of each individual thread
- * is the same.
- */
- extern enum dyld_debug_return _dyld_debug_make_runnable(
- mach_port_t target_task,
- struct _dyld_debug_task_state *state);
-
- /*
- * _dyld_debug_restore_runnable() is called after sending messages to the
- * dynamic link editor. It undoes what _dyld_debug_make_runnable() did to the
- * task and put it back the way it was.
- */
- extern enum dyld_debug_return _dyld_debug_restore_runnable(
- mach_port_t target_task,
- struct _dyld_debug_task_state *state);
-
- /*
- * To provide more detailed information when the APIs of the dyld debug
- * interfaces fail (return DYLD_FAILURE) the following structure is filled in.
- * After it is filled in the function registered with
- * set_dyld_debug_error_func() is called with a pointer to that struct.
- *
- * The local_error field is a unique number for each possible error condition
- * in the source code in that makes up the dyld debug APIs. The source file
- * and line number in the cctools libdyld directory where the dyld debug APIs
- * are implemented are set into the file_name and line_number fields. The
- * field dyld_debug_return is filled in with that would be returned by the
- * API (usually DYLD_FAILURE). The other fields will be zero or filled in by
- * the error code from the mach system call, or UNIX system call that failed.
- */
- struct dyld_debug_error_data {
- enum dyld_debug_return dyld_debug_return;
- kern_return_t mach_error;
- int dyld_debug_errno;
- unsigned long local_error;
- char *file_name;
- unsigned long line_number;
- };
-
- extern void _dyld_debug_set_error_func(
- void (*func)(struct dyld_debug_error_data *e));
-
- #ifndef DYLD_BUILD /* do not include this when building dyld itself */
-
- extern enum dyld_debug_return _dyld_debug_task_from_core(
- NSObjectFileImage coreFileImage,
- mach_port_t *core_task);
-
- #endif /* !defined(DYLD_BUILD) */
-
- #endif /* _DYLD_DEBUG_ */
-