1999-05-23 21:53:30 +02:00
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/*
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* Server-side debugger functions
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*
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* Copyright (C) 1999 Alexandre Julliard
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2002-03-10 00:29:33 +01:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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2006-05-18 14:49:52 +02:00
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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1999-05-23 21:53:30 +02:00
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*/
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2002-04-26 21:05:15 +02:00
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#include "config.h"
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#include "wine/port.h"
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1999-05-23 21:53:30 +02:00
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#include <assert.h>
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2002-02-27 02:55:02 +01:00
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#include <signal.h>
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1999-07-31 19:36:48 +02:00
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#include <string.h>
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2003-09-06 01:08:26 +02:00
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#include <stdarg.h>
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2000-01-04 03:24:43 +01:00
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#include <stdio.h>
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1999-07-31 19:36:48 +02:00
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2005-11-28 17:32:54 +01:00
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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2003-09-06 01:08:26 +02:00
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#include "windef.h"
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2005-11-28 17:32:54 +01:00
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#include "winternl.h"
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1999-05-23 21:53:30 +02:00
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#include "handle.h"
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2011-04-18 14:14:40 +02:00
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#include "file.h"
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1999-05-23 21:53:30 +02:00
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#include "process.h"
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#include "thread.h"
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1999-06-22 19:26:53 +02:00
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#include "request.h"
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1999-05-23 21:53:30 +02:00
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2000-01-04 03:24:43 +01:00
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enum debug_event_state { EVENT_QUEUED, EVENT_SENT, EVENT_CONTINUED };
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/* debug event */
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1999-05-23 21:53:30 +02:00
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struct debug_event
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{
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2000-01-04 03:24:43 +01:00
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struct object obj; /* object header */
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2005-02-26 18:45:29 +01:00
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struct list entry; /* entry in event queue */
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2000-01-04 03:24:43 +01:00
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struct thread *sender; /* thread which sent this event */
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struct thread *debugger; /* debugger thread receiving the event */
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enum debug_event_state state; /* event state */
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int status; /* continuation status */
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2000-01-20 19:59:03 +01:00
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debug_event_t data; /* event data */
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2009-04-08 19:38:02 +02:00
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context_t context; /* register context */
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1999-05-23 21:53:30 +02:00
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};
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2000-01-04 03:24:43 +01:00
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/* debug context */
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1999-05-23 21:53:30 +02:00
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struct debug_ctx
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{
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2000-01-04 03:24:43 +01:00
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struct object obj; /* object header */
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2005-02-26 18:45:29 +01:00
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struct list event_queue; /* pending events queue */
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2002-02-27 02:28:30 +01:00
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int kill_on_exit;/* kill debuggees on debugger exit ? */
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2000-01-04 03:24:43 +01:00
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};
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static void debug_event_dump( struct object *obj, int verbose );
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2013-08-26 11:55:04 +02:00
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static int debug_event_signaled( struct object *obj, struct wait_queue_entry *entry );
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2000-01-04 03:24:43 +01:00
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static void debug_event_destroy( struct object *obj );
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static const struct object_ops debug_event_ops =
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{
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sizeof(struct debug_event), /* size */
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debug_event_dump, /* dump */
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2007-12-05 18:16:42 +01:00
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no_get_type, /* get_type */
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2000-01-04 03:24:43 +01:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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debug_event_signaled, /* signaled */
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no_satisfied, /* satisfied */
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2005-04-24 19:35:52 +02:00
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no_signal, /* signal */
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2000-12-19 03:12:45 +01:00
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no_get_fd, /* get_fd */
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2005-12-12 14:57:40 +01:00
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no_map_access, /* map_access */
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2007-10-03 14:10:37 +02:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2005-11-22 15:55:42 +01:00
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no_lookup_name, /* lookup_name */
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2016-02-04 13:07:19 +01:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2007-03-22 11:44:29 +01:00
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no_open_file, /* open_file */
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2019-03-25 14:37:09 +01:00
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no_kernel_obj_list, /* get_kernel_obj_list */
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2005-06-09 17:39:52 +02:00
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no_close_handle, /* close_handle */
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2000-01-04 03:24:43 +01:00
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debug_event_destroy /* destroy */
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};
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static void debug_ctx_dump( struct object *obj, int verbose );
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2013-08-26 11:55:04 +02:00
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static int debug_ctx_signaled( struct object *obj, struct wait_queue_entry *entry );
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2000-01-04 03:24:43 +01:00
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static void debug_ctx_destroy( struct object *obj );
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static const struct object_ops debug_ctx_ops =
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{
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sizeof(struct debug_ctx), /* size */
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debug_ctx_dump, /* dump */
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2007-12-05 18:16:42 +01:00
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no_get_type, /* get_type */
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2000-01-04 03:24:43 +01:00
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add_queue, /* add_queue */
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remove_queue, /* remove_queue */
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debug_ctx_signaled, /* signaled */
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no_satisfied, /* satisfied */
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2005-04-24 19:35:52 +02:00
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no_signal, /* signal */
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2000-12-19 03:12:45 +01:00
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no_get_fd, /* get_fd */
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2005-12-12 14:57:40 +01:00
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no_map_access, /* map_access */
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2007-10-03 14:10:37 +02:00
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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2005-11-22 15:55:42 +01:00
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no_lookup_name, /* lookup_name */
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2016-02-04 13:07:19 +01:00
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no_link_name, /* link_name */
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NULL, /* unlink_name */
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2007-03-22 11:44:29 +01:00
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no_open_file, /* open_file */
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2019-03-25 14:37:09 +01:00
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no_kernel_obj_list, /* get_kernel_obj_list */
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2005-06-09 17:39:52 +02:00
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no_close_handle, /* close_handle */
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2000-01-04 03:24:43 +01:00
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debug_ctx_destroy /* destroy */
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1999-05-23 21:53:30 +02:00
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};
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2000-03-10 23:16:10 +01:00
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/* routines to build an event according to its type */
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2008-12-30 22:56:15 +01:00
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static int fill_exception_event( struct debug_event *event, const void *arg )
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2000-03-10 23:16:10 +01:00
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{
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2009-01-02 20:09:25 +01:00
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const debug_event_t *data = arg;
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event->data.exception = data->exception;
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2009-01-02 20:12:46 +01:00
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event->data.exception.nb_params = min( event->data.exception.nb_params, EXCEPTION_MAXIMUM_PARAMETERS );
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2000-03-10 23:16:10 +01:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_create_thread_event( struct debug_event *event, const void *arg )
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1999-05-23 21:53:30 +02:00
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{
|
2000-03-09 19:18:41 +01:00
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struct process *debugger = event->debugger->process;
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2000-03-30 21:30:24 +02:00
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struct thread *thread = event->sender;
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2008-12-30 22:56:15 +01:00
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const client_ptr_t *entry = arg;
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2002-05-30 22:12:58 +02:00
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obj_handle_t handle;
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2001-01-05 05:08:07 +01:00
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2000-03-10 23:16:10 +01:00
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/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
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2005-12-09 13:58:25 +01:00
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if (!(handle = alloc_handle( debugger, thread, THREAD_ALL_ACCESS, 0 ))) return 0;
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2009-01-02 20:09:25 +01:00
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event->data.create_thread.handle = handle;
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event->data.create_thread.teb = thread->teb;
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if (entry) event->data.create_thread.start = *entry;
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2000-03-10 23:16:10 +01:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_create_process_event( struct debug_event *event, const void *arg )
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2000-03-10 23:16:10 +01:00
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{
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struct process *debugger = event->debugger->process;
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2000-03-30 21:30:24 +02:00
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struct thread *thread = event->sender;
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struct process *process = thread->process;
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2006-02-16 12:13:01 +01:00
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struct process_dll *exe_module = get_process_exe_module( process );
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2008-12-30 22:56:15 +01:00
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const client_ptr_t *entry = arg;
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2017-10-03 11:59:20 +02:00
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struct file *file;
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2002-05-30 22:12:58 +02:00
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obj_handle_t handle;
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1999-05-23 21:53:30 +02:00
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2000-03-10 23:16:10 +01:00
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/* documented: PROCESS_VM_READ | PROCESS_VM_WRITE */
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2005-12-09 13:58:25 +01:00
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if (!(handle = alloc_handle( debugger, process, PROCESS_ALL_ACCESS, 0 ))) return 0;
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2009-01-02 20:09:25 +01:00
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event->data.create_process.process = handle;
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2000-03-10 23:16:10 +01:00
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/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
|
2005-12-09 13:58:25 +01:00
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if (!(handle = alloc_handle( debugger, thread, THREAD_ALL_ACCESS, 0 )))
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1999-05-23 21:53:30 +02:00
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{
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2009-01-02 20:09:25 +01:00
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close_handle( debugger, event->data.create_process.process );
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2000-03-10 23:16:10 +01:00
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return 0;
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}
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2011-04-19 10:29:44 +02:00
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event->data.create_process.thread = handle;
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event->data.create_process.file = 0;
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2009-01-02 20:09:25 +01:00
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event->data.create_process.teb = thread->teb;
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event->data.create_process.base = exe_module->base;
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event->data.create_process.start = *entry;
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event->data.create_process.dbg_offset = exe_module->dbg_offset;
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event->data.create_process.dbg_size = exe_module->dbg_size;
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event->data.create_process.name = exe_module->name;
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event->data.create_process.unicode = 1;
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2011-04-19 10:29:44 +02:00
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2017-09-26 14:50:43 +02:00
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/* the doc says write access too, but this doesn't seem a good idea */
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2017-10-03 11:59:20 +02:00
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if ((file = get_mapping_file( process, exe_module->base, GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE )))
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{
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event->data.create_process.file = alloc_handle( debugger, file, GENERIC_READ, 0 );
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release_object( file );
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}
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2000-03-10 23:16:10 +01:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_exit_thread_event( struct debug_event *event, const void *arg )
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2000-03-10 23:16:10 +01:00
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{
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2008-12-30 22:56:15 +01:00
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const struct thread *thread = arg;
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2009-01-02 20:09:25 +01:00
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event->data.exit.exit_code = thread->exit_code;
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2000-03-10 23:16:10 +01:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_exit_process_event( struct debug_event *event, const void *arg )
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2000-03-10 23:16:10 +01:00
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{
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2008-12-30 22:56:15 +01:00
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const struct process *process = arg;
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2009-01-02 20:09:25 +01:00
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event->data.exit.exit_code = process->exit_code;
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2000-03-10 23:16:10 +01:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_load_dll_event( struct debug_event *event, const void *arg )
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2000-03-10 23:16:10 +01:00
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{
|
2017-10-03 11:59:20 +02:00
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struct process *process = event->sender->process;
|
2000-03-10 23:16:10 +01:00
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struct process *debugger = event->debugger->process;
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2008-12-30 22:56:15 +01:00
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const struct process_dll *dll = arg;
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2017-10-03 11:59:20 +02:00
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struct file *file;
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2000-03-10 23:16:10 +01:00
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|
2011-04-19 10:29:44 +02:00
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event->data.load_dll.handle = 0;
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2009-01-02 20:09:25 +01:00
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event->data.load_dll.base = dll->base;
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event->data.load_dll.dbg_offset = dll->dbg_offset;
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event->data.load_dll.dbg_size = dll->dbg_size;
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event->data.load_dll.name = dll->name;
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event->data.load_dll.unicode = 1;
|
2017-10-03 11:59:20 +02:00
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if ((file = get_mapping_file( process, dll->base, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE )))
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{
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event->data.load_dll.handle = alloc_handle( debugger, file, GENERIC_READ, 0 );
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release_object( file );
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}
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1999-05-23 21:53:30 +02:00
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return 1;
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}
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2008-12-30 22:56:15 +01:00
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static int fill_unload_dll_event( struct debug_event *event, const void *arg )
|
2000-03-10 23:16:10 +01:00
|
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{
|
2008-12-30 22:56:15 +01:00
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const mod_handle_t *base = arg;
|
2009-01-02 20:09:25 +01:00
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event->data.unload_dll.base = *base;
|
2000-03-10 23:16:10 +01:00
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return 1;
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}
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|
2008-12-30 22:56:15 +01:00
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|
typedef int (*fill_event_func)( struct debug_event *event, const void *arg );
|
2000-03-10 23:16:10 +01:00
|
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|
2014-06-23 03:02:31 +02:00
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#define NB_DEBUG_EVENTS UNLOAD_DLL_DEBUG_EVENT
|
2000-03-10 23:16:10 +01:00
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static const fill_event_func fill_debug_event[NB_DEBUG_EVENTS] =
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|
|
{
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fill_exception_event, /* EXCEPTION_DEBUG_EVENT */
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fill_create_thread_event, /* CREATE_THREAD_DEBUG_EVENT */
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fill_create_process_event, /* CREATE_PROCESS_DEBUG_EVENT */
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fill_exit_thread_event, /* EXIT_THREAD_DEBUG_EVENT */
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fill_exit_process_event, /* EXIT_PROCESS_DEBUG_EVENT */
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fill_load_dll_event, /* LOAD_DLL_DEBUG_EVENT */
|
2014-06-20 15:23:04 +02:00
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|
fill_unload_dll_event /* UNLOAD_DLL_DEBUG_EVENT */
|
2000-03-10 23:16:10 +01:00
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};
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|
1999-05-23 21:53:30 +02:00
|
|
|
/* unlink the first event from the queue */
|
|
|
|
static void unlink_event( struct debug_ctx *debug_ctx, struct debug_event *event )
|
|
|
|
{
|
2005-02-26 18:45:29 +01:00
|
|
|
list_remove( &event->entry );
|
2000-04-07 00:05:16 +02:00
|
|
|
if (event->sender->debug_event == event) event->sender->debug_event = NULL;
|
2000-01-04 03:24:43 +01:00
|
|
|
release_object( event );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* link an event at the end of the queue */
|
2001-01-26 21:45:41 +01:00
|
|
|
static void link_event( struct debug_event *event )
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2001-01-26 21:45:41 +01:00
|
|
|
struct debug_ctx *debug_ctx = event->debugger->debug_ctx;
|
|
|
|
|
|
|
|
assert( debug_ctx );
|
2000-01-04 03:24:43 +01:00
|
|
|
grab_object( event );
|
2005-02-26 18:45:29 +01:00
|
|
|
list_add_tail( &debug_ctx->event_queue, &event->entry );
|
2014-06-21 22:56:22 +02:00
|
|
|
if (!event->sender->debug_event)
|
|
|
|
{
|
|
|
|
/* grab reference since debugger could be killed while trying to wake up */
|
|
|
|
grab_object( debug_ctx );
|
|
|
|
wake_up( &debug_ctx->obj, 0 );
|
|
|
|
release_object( debug_ctx );
|
|
|
|
}
|
2000-04-07 00:05:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* find the next event that we can send to the debugger */
|
|
|
|
static struct debug_event *find_event_to_send( struct debug_ctx *debug_ctx )
|
|
|
|
{
|
|
|
|
struct debug_event *event;
|
2005-02-26 18:45:29 +01:00
|
|
|
|
|
|
|
LIST_FOR_EACH_ENTRY( event, &debug_ctx->event_queue, struct debug_event, entry )
|
2000-01-04 03:24:43 +01:00
|
|
|
{
|
2000-04-07 00:05:16 +02:00
|
|
|
if (event->state == EVENT_SENT) continue; /* already sent */
|
|
|
|
if (event->sender->debug_event) continue; /* thread busy with another one */
|
2005-02-26 18:45:29 +01:00
|
|
|
return event;
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
2005-02-26 18:45:29 +01:00
|
|
|
return NULL;
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static void debug_event_dump( struct object *obj, int verbose )
|
|
|
|
{
|
|
|
|
struct debug_event *debug_event = (struct debug_event *)obj;
|
|
|
|
assert( obj->ops == &debug_event_ops );
|
|
|
|
fprintf( stderr, "Debug event sender=%p code=%d state=%d\n",
|
2000-01-20 19:59:03 +01:00
|
|
|
debug_event->sender, debug_event->data.code, debug_event->state );
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
1999-05-23 21:53:30 +02:00
|
|
|
|
2013-08-26 11:55:04 +02:00
|
|
|
static int debug_event_signaled( struct object *obj, struct wait_queue_entry *entry )
|
2000-01-04 03:24:43 +01:00
|
|
|
{
|
|
|
|
struct debug_event *debug_event = (struct debug_event *)obj;
|
|
|
|
assert( obj->ops == &debug_event_ops );
|
|
|
|
return debug_event->state == EVENT_CONTINUED;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void debug_event_destroy( struct object *obj )
|
|
|
|
{
|
|
|
|
struct debug_event *event = (struct debug_event *)obj;
|
|
|
|
assert( obj->ops == &debug_event_ops );
|
|
|
|
|
|
|
|
/* If the event has been sent already, the handles are now under the */
|
|
|
|
/* responsibility of the debugger process, so we don't touch them */
|
|
|
|
if (event->state == EVENT_QUEUED)
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-01-04 03:24:43 +01:00
|
|
|
struct process *debugger = event->debugger->process;
|
2000-01-20 19:59:03 +01:00
|
|
|
switch(event->data.code)
|
2000-01-04 03:24:43 +01:00
|
|
|
{
|
|
|
|
case CREATE_THREAD_DEBUG_EVENT:
|
2009-01-02 20:09:25 +01:00
|
|
|
close_handle( debugger, event->data.create_thread.handle );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
case CREATE_PROCESS_DEBUG_EVENT:
|
2009-01-02 20:09:25 +01:00
|
|
|
if (event->data.create_process.file)
|
|
|
|
close_handle( debugger, event->data.create_process.file );
|
|
|
|
close_handle( debugger, event->data.create_process.thread );
|
|
|
|
close_handle( debugger, event->data.create_process.process );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
case LOAD_DLL_DEBUG_EVENT:
|
2009-01-02 20:09:25 +01:00
|
|
|
if (event->data.load_dll.handle)
|
|
|
|
close_handle( debugger, event->data.load_dll.handle );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
}
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
2011-05-06 12:43:16 +02:00
|
|
|
if (event->sender->context == &event->context)
|
|
|
|
{
|
|
|
|
event->sender->context = NULL;
|
|
|
|
stop_thread_if_suspended( event->sender );
|
|
|
|
}
|
2000-01-04 03:24:43 +01:00
|
|
|
release_object( event->sender );
|
|
|
|
release_object( event->debugger );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
2000-01-04 03:24:43 +01:00
|
|
|
static void debug_ctx_dump( struct object *obj, int verbose )
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-01-04 03:24:43 +01:00
|
|
|
struct debug_ctx *debug_ctx = (struct debug_ctx *)obj;
|
|
|
|
assert( obj->ops == &debug_ctx_ops );
|
2000-04-07 00:05:16 +02:00
|
|
|
fprintf( stderr, "Debug context head=%p tail=%p\n",
|
2005-02-26 18:45:29 +01:00
|
|
|
debug_ctx->event_queue.next, debug_ctx->event_queue.prev );
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
|
|
|
|
2013-08-26 11:55:04 +02:00
|
|
|
static int debug_ctx_signaled( struct object *obj, struct wait_queue_entry *entry )
|
2000-01-04 03:24:43 +01:00
|
|
|
{
|
|
|
|
struct debug_ctx *debug_ctx = (struct debug_ctx *)obj;
|
|
|
|
assert( obj->ops == &debug_ctx_ops );
|
2000-04-07 00:05:16 +02:00
|
|
|
return find_event_to_send( debug_ctx ) != NULL;
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static void debug_ctx_destroy( struct object *obj )
|
|
|
|
{
|
2005-02-26 18:45:29 +01:00
|
|
|
struct list *ptr;
|
2000-01-04 03:24:43 +01:00
|
|
|
struct debug_ctx *debug_ctx = (struct debug_ctx *)obj;
|
|
|
|
assert( obj->ops == &debug_ctx_ops );
|
|
|
|
|
|
|
|
/* free all pending events */
|
2005-02-26 18:45:29 +01:00
|
|
|
while ((ptr = list_head( &debug_ctx->event_queue )))
|
|
|
|
unlink_event( debug_ctx, LIST_ENTRY( ptr, struct debug_event, entry ));
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* continue a debug event */
|
|
|
|
static int continue_debug_event( struct process *process, struct thread *thread, int status )
|
|
|
|
{
|
2000-01-04 03:24:43 +01:00
|
|
|
struct debug_ctx *debug_ctx = current->debug_ctx;
|
1999-05-23 21:53:30 +02:00
|
|
|
|
2005-02-26 18:45:29 +01:00
|
|
|
if (debug_ctx && process->debugger == current && thread->process == process)
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2005-02-26 18:45:29 +01:00
|
|
|
struct debug_event *event;
|
2000-04-07 00:05:16 +02:00
|
|
|
|
2005-02-26 18:45:29 +01:00
|
|
|
/* find the event in the queue */
|
|
|
|
LIST_FOR_EACH_ENTRY( event, &debug_ctx->event_queue, struct debug_event, entry )
|
|
|
|
{
|
|
|
|
if (event->state != EVENT_SENT) continue;
|
|
|
|
if (event->sender == thread)
|
|
|
|
{
|
|
|
|
assert( event->sender->debug_event == event );
|
|
|
|
|
|
|
|
event->status = status;
|
|
|
|
event->state = EVENT_CONTINUED;
|
|
|
|
wake_up( &event->obj, 0 );
|
|
|
|
unlink_event( debug_ctx, event );
|
|
|
|
resume_process( process );
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2000-01-04 03:24:43 +01:00
|
|
|
/* not debugging this process, or no such event */
|
2000-01-24 22:58:06 +01:00
|
|
|
set_error( STATUS_ACCESS_DENIED ); /* FIXME */
|
2000-01-04 03:24:43 +01:00
|
|
|
return 0;
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
2001-01-26 21:45:41 +01:00
|
|
|
/* alloc a debug event for a debugger */
|
2009-01-02 20:12:46 +01:00
|
|
|
static struct debug_event *alloc_debug_event( struct thread *thread, int code, const void *arg )
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-03-08 13:01:30 +01:00
|
|
|
struct thread *debugger = thread->process->debugger;
|
1999-05-23 21:53:30 +02:00
|
|
|
struct debug_event *event;
|
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
assert( code > 0 && code <= NB_DEBUG_EVENTS );
|
1999-05-23 21:53:30 +02:00
|
|
|
/* cannot queue a debug event for myself */
|
|
|
|
assert( debugger->process != thread->process );
|
|
|
|
|
|
|
|
/* build the event */
|
2003-02-19 01:33:32 +01:00
|
|
|
if (!(event = alloc_object( &debug_event_ops ))) return NULL;
|
2000-03-10 23:16:10 +01:00
|
|
|
event->state = EVENT_QUEUED;
|
|
|
|
event->sender = (struct thread *)grab_object( thread );
|
|
|
|
event->debugger = (struct thread *)grab_object( debugger );
|
2009-01-02 20:00:54 +01:00
|
|
|
memset( &event->data, 0, sizeof(event->data) );
|
1999-05-23 21:53:30 +02:00
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
if (!fill_debug_event[code-1]( event, arg ))
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-01-20 19:59:03 +01:00
|
|
|
event->data.code = -1; /* make sure we don't attempt to close handles */
|
2000-01-04 03:24:43 +01:00
|
|
|
release_object( event );
|
1999-05-23 21:53:30 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
2009-01-02 20:09:25 +01:00
|
|
|
event->data.code = code;
|
1999-05-23 21:53:30 +02:00
|
|
|
return event;
|
|
|
|
}
|
|
|
|
|
2000-03-08 13:01:30 +01:00
|
|
|
/* generate a debug event from inside the server and queue it */
|
2008-12-30 22:56:15 +01:00
|
|
|
void generate_debug_event( struct thread *thread, int code, const void *arg )
|
2000-03-08 13:01:30 +01:00
|
|
|
{
|
|
|
|
if (thread->process->debugger)
|
|
|
|
{
|
2009-01-02 20:12:46 +01:00
|
|
|
struct debug_event *event = alloc_debug_event( thread, code, arg );
|
2001-01-26 21:45:41 +01:00
|
|
|
if (event)
|
|
|
|
{
|
|
|
|
link_event( event );
|
|
|
|
suspend_process( thread->process );
|
|
|
|
release_object( event );
|
|
|
|
}
|
2011-04-18 14:14:40 +02:00
|
|
|
clear_error(); /* ignore errors */
|
2000-03-08 13:01:30 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
/* attach a process to a debugger thread and suspend it */
|
|
|
|
static int debugger_attach( struct process *process, struct thread *debugger )
|
|
|
|
{
|
|
|
|
if (process->debugger) goto error; /* already being debugged */
|
2010-03-14 21:53:19 +01:00
|
|
|
if (debugger->process == process) goto error;
|
2002-05-24 23:20:27 +02:00
|
|
|
if (!is_process_init_done( process )) goto error; /* still starting up */
|
2005-03-01 11:56:18 +01:00
|
|
|
if (list_empty( &process->thread_list )) goto error; /* no thread running in the process */
|
2000-03-10 23:16:10 +01:00
|
|
|
|
2001-11-24 00:04:58 +01:00
|
|
|
/* don't let a debugger debug its console... won't work */
|
2010-08-30 22:18:44 +02:00
|
|
|
if (debugger->process->console)
|
|
|
|
{
|
|
|
|
struct thread *renderer = console_get_renderer(debugger->process->console);
|
|
|
|
if (renderer && renderer->process == process)
|
|
|
|
goto error;
|
|
|
|
}
|
2001-11-24 00:04:58 +01:00
|
|
|
|
2001-07-14 02:50:30 +02:00
|
|
|
suspend_process( process );
|
2006-04-10 20:25:22 +02:00
|
|
|
if (!set_process_debugger( process, debugger ))
|
2002-02-27 02:28:30 +01:00
|
|
|
{
|
2003-03-11 02:48:53 +01:00
|
|
|
resume_process( process );
|
|
|
|
return 0;
|
2002-02-27 02:28:30 +01:00
|
|
|
}
|
2003-10-14 03:30:42 +02:00
|
|
|
if (!set_process_debug_flag( process, 1 ))
|
|
|
|
{
|
|
|
|
process->debugger = NULL;
|
|
|
|
resume_process( process );
|
|
|
|
return 0;
|
|
|
|
}
|
2015-12-21 05:18:50 +01:00
|
|
|
process->debug_children = 0;
|
2003-03-11 02:48:53 +01:00
|
|
|
return 1;
|
2000-03-10 23:16:10 +01:00
|
|
|
|
|
|
|
error:
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2002-02-27 02:28:30 +01:00
|
|
|
|
|
|
|
/* detach a process from a debugger thread (and resume it ?) */
|
|
|
|
int debugger_detach( struct process *process, struct thread *debugger )
|
|
|
|
{
|
2007-08-30 19:47:43 +02:00
|
|
|
struct debug_event *event, *next;
|
2002-02-27 02:28:30 +01:00
|
|
|
struct debug_ctx *debug_ctx;
|
|
|
|
|
|
|
|
if (!process->debugger || process->debugger != debugger)
|
|
|
|
goto error; /* not currently debugged, or debugged by another debugger */
|
|
|
|
if (!debugger->debug_ctx ) goto error; /* should be a debugger */
|
|
|
|
/* init should be done, otherwise wouldn't be attached */
|
2002-05-24 23:20:27 +02:00
|
|
|
assert(is_process_init_done(process));
|
2002-02-27 02:28:30 +01:00
|
|
|
|
|
|
|
suspend_process( process );
|
|
|
|
/* send continue indication for all events */
|
|
|
|
debug_ctx = debugger->debug_ctx;
|
|
|
|
|
2007-08-30 19:47:43 +02:00
|
|
|
/* free all events from this process */
|
|
|
|
LIST_FOR_EACH_ENTRY_SAFE( event, next, &debug_ctx->event_queue, struct debug_event, entry )
|
2002-02-27 02:28:30 +01:00
|
|
|
{
|
2007-08-30 19:47:43 +02:00
|
|
|
if (event->sender->process != process) continue;
|
|
|
|
|
|
|
|
assert( event->state != EVENT_CONTINUED );
|
|
|
|
event->status = DBG_CONTINUE;
|
|
|
|
event->state = EVENT_CONTINUED;
|
|
|
|
wake_up( &event->obj, 0 );
|
|
|
|
unlink_event( debug_ctx, event );
|
|
|
|
/* from queued debug event */
|
|
|
|
resume_process( process );
|
2002-02-27 02:28:30 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/* remove relationships between process and its debugger */
|
|
|
|
process->debugger = NULL;
|
2003-10-14 03:30:42 +02:00
|
|
|
if (!set_process_debug_flag( process, 0 )) clear_error(); /* ignore error */
|
2002-02-27 02:28:30 +01:00
|
|
|
|
|
|
|
/* from this function */
|
|
|
|
resume_process( process );
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
error:
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-03-09 19:18:41 +01:00
|
|
|
/* generate all startup events of a given process */
|
2008-12-30 22:56:15 +01:00
|
|
|
void generate_startup_debug_events( struct process *process, client_ptr_t entry )
|
2000-03-09 19:18:41 +01:00
|
|
|
{
|
2005-03-02 11:20:09 +01:00
|
|
|
struct list *ptr;
|
2005-03-01 11:56:18 +01:00
|
|
|
struct thread *thread, *first_thread = get_process_first_thread( process );
|
2000-03-09 19:18:41 +01:00
|
|
|
|
2019-07-04 13:37:38 +02:00
|
|
|
generate_debug_event( first_thread, CREATE_PROCESS_DEBUG_EVENT, &entry );
|
|
|
|
ptr = list_head( &process->dlls ); /* skip main module reported in create process event */
|
|
|
|
|
|
|
|
/* generate ntdll.dll load event */
|
|
|
|
if (ptr && (ptr = list_next( &process->dlls, ptr )))
|
|
|
|
{
|
|
|
|
struct process_dll *dll = LIST_ENTRY( ptr, struct process_dll, entry );
|
|
|
|
generate_debug_event( first_thread, LOAD_DLL_DEBUG_EVENT, dll );
|
|
|
|
}
|
|
|
|
|
2000-03-09 19:18:41 +01:00
|
|
|
/* generate creation events */
|
2005-03-01 11:56:18 +01:00
|
|
|
LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
|
|
|
|
{
|
2019-07-04 13:37:38 +02:00
|
|
|
if (thread != first_thread)
|
2005-03-01 11:56:18 +01:00
|
|
|
generate_debug_event( thread, CREATE_THREAD_DEBUG_EVENT, NULL );
|
|
|
|
}
|
2000-03-09 19:18:41 +01:00
|
|
|
|
2019-07-04 13:37:38 +02:00
|
|
|
/* generate dll events (in loading order) */
|
|
|
|
while (ptr && (ptr = list_next( &process->dlls, ptr )))
|
2000-03-09 19:18:41 +01:00
|
|
|
{
|
2005-03-02 11:20:09 +01:00
|
|
|
struct process_dll *dll = LIST_ENTRY( ptr, struct process_dll, entry );
|
2005-03-01 11:56:18 +01:00
|
|
|
generate_debug_event( first_thread, LOAD_DLL_DEBUG_EVENT, dll );
|
2000-03-09 19:18:41 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
/* set the debugger of a given process */
|
|
|
|
int set_process_debugger( struct process *process, struct thread *debugger )
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
|
|
|
struct debug_ctx *debug_ctx;
|
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
assert( !process->debugger );
|
1999-05-23 21:53:30 +02:00
|
|
|
|
|
|
|
if (!debugger->debug_ctx) /* need to allocate a context */
|
|
|
|
{
|
2003-02-19 01:33:32 +01:00
|
|
|
if (!(debug_ctx = alloc_object( &debug_ctx_ops ))) return 0;
|
2002-02-27 02:28:30 +01:00
|
|
|
debug_ctx->kill_on_exit = 1;
|
2005-02-26 18:45:29 +01:00
|
|
|
list_init( &debug_ctx->event_queue );
|
1999-05-23 21:53:30 +02:00
|
|
|
debugger->debug_ctx = debug_ctx;
|
|
|
|
}
|
1999-11-24 02:22:14 +01:00
|
|
|
process->debugger = debugger;
|
1999-05-23 21:53:30 +02:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* a thread is exiting */
|
2000-03-08 13:01:30 +01:00
|
|
|
void debug_exit_thread( struct thread *thread )
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-03-08 13:01:30 +01:00
|
|
|
if (thread->debug_ctx) /* this thread is a debugger */
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2002-02-27 02:28:30 +01:00
|
|
|
if (thread->debug_ctx->kill_on_exit)
|
|
|
|
{
|
|
|
|
/* kill all debugged processes */
|
2007-08-31 02:35:54 +02:00
|
|
|
kill_debugged_processes( thread, STATUS_DEBUGGER_INACTIVE );
|
2002-02-27 02:28:30 +01:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
detach_debugged_processes( thread );
|
|
|
|
}
|
2000-03-08 13:01:30 +01:00
|
|
|
release_object( thread->debug_ctx );
|
1999-05-23 21:53:30 +02:00
|
|
|
thread->debug_ctx = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Wait for a debug event */
|
|
|
|
DECL_HANDLER(wait_debug_event)
|
|
|
|
{
|
2001-01-26 01:22:26 +01:00
|
|
|
struct debug_ctx *debug_ctx = current->debug_ctx;
|
|
|
|
struct debug_event *event;
|
|
|
|
|
|
|
|
if (!debug_ctx) /* current thread is not a debugger */
|
|
|
|
{
|
|
|
|
set_error( STATUS_INVALID_HANDLE );
|
|
|
|
return;
|
|
|
|
}
|
2001-11-30 19:46:42 +01:00
|
|
|
reply->wait = 0;
|
2001-01-26 01:22:26 +01:00
|
|
|
if ((event = find_event_to_send( debug_ctx )))
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2006-07-26 10:43:25 +02:00
|
|
|
data_size_t size = get_reply_max_size();
|
2001-01-26 01:22:26 +01:00
|
|
|
event->state = EVENT_SENT;
|
|
|
|
event->sender->debug_event = event;
|
2002-10-03 21:54:57 +02:00
|
|
|
reply->pid = get_process_id( event->sender->process );
|
|
|
|
reply->tid = get_thread_id( event->sender );
|
2001-01-26 01:22:26 +01:00
|
|
|
if (size > sizeof(debug_event_t)) size = sizeof(debug_event_t);
|
2001-11-30 19:46:42 +01:00
|
|
|
set_reply_data( &event->data, size );
|
2001-01-26 01:22:26 +01:00
|
|
|
}
|
|
|
|
else /* no event ready */
|
|
|
|
{
|
2001-11-30 19:46:42 +01:00
|
|
|
reply->pid = 0;
|
|
|
|
reply->tid = 0;
|
2001-01-26 01:22:26 +01:00
|
|
|
if (req->get_handle)
|
2005-12-09 13:58:25 +01:00
|
|
|
reply->wait = alloc_handle( current->process, debug_ctx, SYNCHRONIZE, 0 );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Continue a debug event */
|
|
|
|
DECL_HANDLER(continue_debug_event)
|
|
|
|
{
|
|
|
|
struct process *process = get_process_from_id( req->pid );
|
|
|
|
if (process)
|
|
|
|
{
|
|
|
|
struct thread *thread = get_thread_from_id( req->tid );
|
|
|
|
if (thread)
|
|
|
|
{
|
|
|
|
continue_debug_event( process, thread, req->status );
|
|
|
|
release_object( thread );
|
|
|
|
}
|
|
|
|
release_object( process );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Start debugging an existing process */
|
|
|
|
DECL_HANDLER(debug_process)
|
|
|
|
{
|
|
|
|
struct process *process = get_process_from_id( req->pid );
|
2000-03-08 13:01:30 +01:00
|
|
|
if (!process) return;
|
2000-03-10 23:16:10 +01:00
|
|
|
|
2002-02-27 02:28:30 +01:00
|
|
|
if (!req->attach)
|
|
|
|
{
|
|
|
|
debugger_detach( process, current );
|
|
|
|
}
|
|
|
|
else if (debugger_attach( process, current ))
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2008-12-30 22:56:15 +01:00
|
|
|
generate_startup_debug_events( process, 0 );
|
2000-03-10 23:16:10 +01:00
|
|
|
resume_process( process );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
2000-03-08 13:01:30 +01:00
|
|
|
release_object( process );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
2001-01-26 21:45:41 +01:00
|
|
|
/* queue an exception event */
|
|
|
|
DECL_HANDLER(queue_exception_event)
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2001-11-30 19:46:42 +01:00
|
|
|
reply->handle = 0;
|
2000-03-10 23:16:10 +01:00
|
|
|
if (current->process->debugger)
|
1999-06-22 19:26:53 +02:00
|
|
|
{
|
2009-01-02 20:09:25 +01:00
|
|
|
debug_event_t data;
|
2000-03-10 23:16:10 +01:00
|
|
|
struct debug_event *event;
|
2011-05-23 19:51:00 +02:00
|
|
|
struct thread *thread = current;
|
2000-03-10 23:16:10 +01:00
|
|
|
|
2009-01-02 20:12:46 +01:00
|
|
|
if ((req->len % sizeof(client_ptr_t)) != 0 ||
|
|
|
|
req->len > get_req_data_size() ||
|
|
|
|
req->len > EXCEPTION_MAXIMUM_PARAMETERS * sizeof(client_ptr_t))
|
2000-08-31 03:59:51 +02:00
|
|
|
{
|
|
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
|
|
return;
|
|
|
|
}
|
2009-01-02 20:12:46 +01:00
|
|
|
memset( &data, 0, sizeof(data) );
|
|
|
|
data.exception.first = req->first;
|
|
|
|
data.exception.exc_code = req->code;
|
|
|
|
data.exception.flags = req->flags;
|
|
|
|
data.exception.record = req->record;
|
|
|
|
data.exception.address = req->address;
|
|
|
|
data.exception.nb_params = req->len / sizeof(client_ptr_t);
|
|
|
|
memcpy( data.exception.params, get_req_data(), req->len );
|
|
|
|
|
2011-05-23 19:51:00 +02:00
|
|
|
if ((event = alloc_debug_event( thread, EXCEPTION_DEBUG_EVENT, &data )))
|
2000-03-10 23:16:10 +01:00
|
|
|
{
|
2010-03-27 07:31:19 +01:00
|
|
|
const context_t *context = (const context_t *)((const char *)get_req_data() + req->len);
|
2009-01-02 20:12:46 +01:00
|
|
|
data_size_t size = get_req_data_size() - req->len;
|
|
|
|
|
|
|
|
memset( &event->context, 0, sizeof(event->context) );
|
2009-04-08 19:38:02 +02:00
|
|
|
memcpy( &event->context, context, min( sizeof(event->context), size ) );
|
2011-05-23 19:51:00 +02:00
|
|
|
thread->context = &event->context;
|
2009-01-02 20:12:46 +01:00
|
|
|
|
2011-05-23 19:51:00 +02:00
|
|
|
if ((reply->handle = alloc_handle( thread->process, event, SYNCHRONIZE, 0 )))
|
2001-01-26 21:45:41 +01:00
|
|
|
{
|
|
|
|
link_event( event );
|
2011-05-23 19:51:00 +02:00
|
|
|
suspend_process( thread->process );
|
2001-01-26 21:45:41 +01:00
|
|
|
}
|
2000-03-10 23:16:10 +01:00
|
|
|
release_object( event );
|
|
|
|
}
|
1999-06-22 19:26:53 +02:00
|
|
|
}
|
2000-03-10 23:16:10 +01:00
|
|
|
}
|
|
|
|
|
2001-01-26 21:45:41 +01:00
|
|
|
/* retrieve the status of an exception event */
|
|
|
|
DECL_HANDLER(get_exception_status)
|
2000-03-10 23:16:10 +01:00
|
|
|
{
|
2001-01-26 21:45:41 +01:00
|
|
|
struct debug_event *event;
|
|
|
|
|
|
|
|
if ((event = (struct debug_event *)get_handle_obj( current->process, req->handle,
|
|
|
|
0, &debug_event_ops )))
|
1999-06-22 19:26:53 +02:00
|
|
|
{
|
2006-11-02 20:52:05 +01:00
|
|
|
close_handle( current->process, req->handle );
|
2001-01-26 21:45:41 +01:00
|
|
|
if (event->state == EVENT_CONTINUED)
|
|
|
|
{
|
|
|
|
if (current->context == &event->context)
|
|
|
|
{
|
2009-04-08 19:38:02 +02:00
|
|
|
data_size_t size = min( sizeof(context_t), get_reply_max_size() );
|
2001-11-30 19:46:42 +01:00
|
|
|
set_reply_data( &event->context, size );
|
2001-01-26 21:45:41 +01:00
|
|
|
current->context = NULL;
|
2011-05-06 12:43:16 +02:00
|
|
|
stop_thread_if_suspended( current );
|
2001-01-26 21:45:41 +01:00
|
|
|
}
|
2005-11-01 22:47:07 +01:00
|
|
|
set_error( event->status );
|
2001-01-26 21:45:41 +01:00
|
|
|
}
|
|
|
|
else set_error( STATUS_PENDING );
|
|
|
|
release_object( event );
|
1999-06-22 19:26:53 +02:00
|
|
|
}
|
2001-01-26 21:45:41 +01:00
|
|
|
}
|
|
|
|
|
2002-02-27 02:28:30 +01:00
|
|
|
/* set debugger kill on exit flag */
|
|
|
|
DECL_HANDLER(set_debugger_kill_on_exit)
|
|
|
|
{
|
|
|
|
if (!current->debug_ctx)
|
|
|
|
{
|
|
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
current->debug_ctx->kill_on_exit = req->kill_on_exit;
|
|
|
|
}
|