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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*/
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#include <assert.h>
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1999-07-31 19:36:48 +02:00
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#include <string.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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1999-05-23 21:53:30 +02:00
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#include "winbase.h"
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#include "handle.h"
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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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struct debug_event *next; /* event queue */
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1999-05-23 21:53:30 +02:00
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struct debug_event *prev;
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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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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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1999-05-23 21:53:30 +02:00
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struct debug_event *event_head; /* head of pending events queue */
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struct debug_event *event_tail; /* tail of pending events queue */
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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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static int debug_event_signaled( struct object *obj, struct thread *thread );
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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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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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NULL, /* get_poll_events */
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NULL, /* poll_event */
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no_read_fd, /* get_read_fd */
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no_write_fd, /* get_write_fd */
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no_flush, /* flush */
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no_get_file_info, /* get_file_info */
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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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static int debug_ctx_signaled( struct object *obj, struct thread *thread );
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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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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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NULL, /* get_poll_events */
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NULL, /* poll_event */
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no_read_fd, /* get_read_fd */
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no_write_fd, /* get_write_fd */
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no_flush, /* flush */
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no_get_file_info, /* get_file_info */
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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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static int fill_exception_event( struct debug_event *event, void *arg )
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{
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memcpy( &event->data.info.exception, arg, sizeof(event->data.info.exception) );
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return 1;
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}
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static int fill_create_thread_event( struct debug_event *event, void *arg )
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1999-05-23 21:53:30 +02:00
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{
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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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2000-03-10 23:16:10 +01:00
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int handle;
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/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
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if ((handle = alloc_handle( debugger, thread, THREAD_ALL_ACCESS, FALSE )) == -1)
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return 0;
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event->data.info.create_thread.handle = handle;
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event->data.info.create_thread.teb = thread->teb;
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2000-03-30 21:30:24 +02:00
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event->data.info.create_thread.start = arg;
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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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static int fill_create_process_event( struct debug_event *event, void *arg )
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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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1999-05-23 21:53:30 +02:00
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int handle;
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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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if ((handle = alloc_handle( debugger, process, PROCESS_ALL_ACCESS, FALSE )) == -1)
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return 0;
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event->data.info.create_process.process = handle;
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/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
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if ((handle = alloc_handle( debugger, thread, THREAD_ALL_ACCESS, FALSE )) == -1)
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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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close_handle( debugger, event->data.info.create_process.process );
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return 0;
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}
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event->data.info.create_process.thread = handle;
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2000-03-08 13:01:30 +01:00
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2000-03-10 23:16:10 +01:00
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handle = -1;
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if (process->exe.file &&
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/* the doc says write access too, but this doesn't seem a good idea */
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((handle = alloc_handle( debugger, process->exe.file, GENERIC_READ, FALSE )) == -1))
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{
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close_handle( debugger, event->data.info.create_process.process );
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close_handle( debugger, event->data.info.create_process.thread );
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return 0;
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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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event->data.info.create_process.file = handle;
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event->data.info.create_process.teb = thread->teb;
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event->data.info.create_process.base = process->exe.base;
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2000-03-30 21:30:24 +02:00
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event->data.info.create_process.start = arg;
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2000-03-10 23:16:10 +01:00
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event->data.info.create_process.dbg_offset = process->exe.dbg_offset;
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event->data.info.create_process.dbg_size = process->exe.dbg_size;
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event->data.info.create_process.name = 0;
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event->data.info.create_process.unicode = 0;
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return 1;
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}
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static int fill_exit_thread_event( struct debug_event *event, void *arg )
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{
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struct thread *thread = arg;
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event->data.info.exit.exit_code = thread->exit_code;
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return 1;
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}
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static int fill_exit_process_event( struct debug_event *event, void *arg )
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{
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struct process *process = arg;
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event->data.info.exit.exit_code = process->exit_code;
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return 1;
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}
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static int fill_load_dll_event( struct debug_event *event, void *arg )
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{
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struct process *debugger = event->debugger->process;
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struct process_dll *dll = arg;
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int handle = -1;
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if (dll->file && (handle = alloc_handle( debugger, dll->file, GENERIC_READ, FALSE )) == -1)
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return 0;
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event->data.info.load_dll.handle = handle;
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event->data.info.load_dll.base = dll->base;
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event->data.info.load_dll.dbg_offset = dll->dbg_offset;
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event->data.info.load_dll.dbg_size = dll->dbg_size;
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event->data.info.load_dll.name = dll->name;
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event->data.info.load_dll.unicode = 0;
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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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2000-03-10 23:16:10 +01:00
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static int fill_unload_dll_event( struct debug_event *event, void *arg )
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{
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event->data.info.unload_dll.base = arg;
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return 1;
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}
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static int fill_output_debug_string_event( struct debug_event *event, void *arg )
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{
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struct output_debug_string_request *req = arg;
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event->data.info.output_string.string = req->string;
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event->data.info.output_string.unicode = req->unicode;
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event->data.info.output_string.length = req->length;
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return 1;
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}
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typedef int (*fill_event_func)( struct debug_event *event, void *arg );
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#define NB_DEBUG_EVENTS OUTPUT_DEBUG_STRING_EVENT /* RIP_EVENT not supported */
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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 */
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fill_unload_dll_event, /* UNLOAD_DLL_DEBUG_EVENT */
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fill_output_debug_string_event /* OUTPUT_DEBUG_STRING_EVENT */
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};
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1999-05-23 21:53:30 +02:00
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/* unlink the first event from the queue */
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static void unlink_event( struct debug_ctx *debug_ctx, struct debug_event *event )
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{
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if (event->prev) event->prev->next = event->next;
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else debug_ctx->event_head = event->next;
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if (event->next) event->next->prev = event->prev;
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else debug_ctx->event_tail = event->prev;
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event->next = event->prev = NULL;
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2000-04-07 00:05:16 +02:00
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if (event->sender->debug_event == event) event->sender->debug_event = NULL;
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2000-01-04 03:24:43 +01:00
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release_object( event );
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1999-05-23 21:53:30 +02:00
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}
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/* link an event at the end of the queue */
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static void link_event( struct debug_ctx *debug_ctx, struct debug_event *event )
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{
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2000-01-04 03:24:43 +01:00
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grab_object( event );
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1999-05-23 21:53:30 +02:00
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event->next = NULL;
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event->prev = debug_ctx->event_tail;
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2000-01-04 03:24:43 +01:00
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debug_ctx->event_tail = event;
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1999-05-23 21:53:30 +02:00
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if (event->prev) event->prev->next = event;
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else debug_ctx->event_head = event;
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2000-04-07 00:05:16 +02:00
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if (!event->sender->debug_event) wake_up( &debug_ctx->obj, 0 );
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}
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/* find the next event that we can send to the debugger */
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static struct debug_event *find_event_to_send( struct debug_ctx *debug_ctx )
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{
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struct debug_event *event;
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for (event = debug_ctx->event_head; event; event = event->next)
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2000-01-04 03:24:43 +01:00
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{
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2000-04-07 00:05:16 +02:00
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if (event->state == EVENT_SENT) continue; /* already sent */
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if (event->sender->debug_event) continue; /* thread busy with another one */
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break;
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2000-01-04 03:24:43 +01:00
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}
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2000-04-07 00:05:16 +02:00
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return event;
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2000-01-04 03:24:43 +01:00
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}
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/* build a reply for the wait_debug_event request */
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static void build_wait_debug_reply( struct thread *thread, struct object *obj, int signaled )
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{
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struct wait_debug_event_request *req = get_req_ptr( thread );
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if (obj)
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{
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struct debug_ctx *debug_ctx = (struct debug_ctx *)obj;
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2000-04-07 00:05:16 +02:00
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struct debug_event *event = find_event_to_send( debug_ctx );
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2000-01-04 03:24:43 +01:00
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/* the object that woke us has to be our debug context */
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assert( obj->ops == &debug_ctx_ops );
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assert( event );
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event->state = EVENT_SENT;
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2000-04-07 00:05:16 +02:00
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event->sender->debug_event = event;
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2000-01-20 19:59:03 +01:00
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req->event.code = event->data.code;
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2000-01-04 03:24:43 +01:00
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req->pid = event->sender->process;
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req->tid = event->sender;
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2000-01-20 19:59:03 +01:00
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memcpy( &req->event, &event->data, sizeof(req->event) );
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2000-01-04 03:24:43 +01:00
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}
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else /* timeout or error */
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{
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2000-01-20 19:59:03 +01:00
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req->event.code = 0;
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2000-01-04 03:24:43 +01:00
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req->pid = 0;
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req->tid = 0;
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}
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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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/* build a reply for the send_event request */
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2000-03-10 23:16:10 +01:00
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static void build_exception_event_reply( struct thread *thread, struct object *obj, int signaled )
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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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struct exception_event_request *req = get_req_ptr( thread );
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2000-01-04 03:24:43 +01:00
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struct debug_event *event = (struct debug_event *)obj;
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assert( obj->ops == &debug_event_ops );
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req->status = event->status;
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2000-03-10 23:16:10 +01:00
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thread->context = NULL;
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2000-01-04 03:24:43 +01:00
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}
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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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static void debug_event_dump( struct object *obj, int verbose )
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{
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struct debug_event *debug_event = (struct debug_event *)obj;
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assert( obj->ops == &debug_event_ops );
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fprintf( stderr, "Debug event sender=%p code=%d state=%d\n",
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2000-01-20 19:59:03 +01:00
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debug_event->sender, debug_event->data.code, debug_event->state );
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2000-01-04 03:24:43 +01:00
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}
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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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static int debug_event_signaled( struct object *obj, struct thread *thread )
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{
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struct debug_event *debug_event = (struct debug_event *)obj;
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assert( obj->ops == &debug_event_ops );
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return debug_event->state == EVENT_CONTINUED;
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}
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static void debug_event_destroy( struct object *obj )
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{
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|
struct debug_event *event = (struct debug_event *)obj;
|
|
|
|
assert( obj->ops == &debug_event_ops );
|
|
|
|
|
|
|
|
/* cannot still be in the queue */
|
|
|
|
assert( !event->next );
|
|
|
|
assert( !event->prev );
|
|
|
|
|
|
|
|
/* 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:
|
2000-01-20 19:59:03 +01:00
|
|
|
close_handle( debugger, event->data.info.create_thread.handle );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
case CREATE_PROCESS_DEBUG_EVENT:
|
2000-01-20 19:59:03 +01:00
|
|
|
if (event->data.info.create_process.file != -1)
|
|
|
|
close_handle( debugger, event->data.info.create_process.file );
|
|
|
|
close_handle( debugger, event->data.info.create_process.thread );
|
|
|
|
close_handle( debugger, event->data.info.create_process.process );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
case LOAD_DLL_DEBUG_EVENT:
|
2000-01-20 19:59:03 +01:00
|
|
|
if (event->data.info.load_dll.handle != -1)
|
|
|
|
close_handle( debugger, event->data.info.load_dll.handle );
|
2000-01-04 03:24:43 +01:00
|
|
|
break;
|
|
|
|
}
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
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",
|
|
|
|
debug_ctx->event_head, debug_ctx->event_tail );
|
2000-01-04 03:24:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static int debug_ctx_signaled( struct object *obj, struct thread *thread )
|
|
|
|
{
|
|
|
|
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 )
|
|
|
|
{
|
|
|
|
struct debug_event *event;
|
|
|
|
struct debug_ctx *debug_ctx = (struct debug_ctx *)obj;
|
|
|
|
assert( obj->ops == &debug_ctx_ops );
|
|
|
|
|
|
|
|
/* free all pending events */
|
|
|
|
while ((event = debug_ctx->event_head) != NULL) unlink_event( debug_ctx, event );
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* wait for a debug event (or send a reply at once if one is pending) */
|
|
|
|
static int wait_for_debug_event( int timeout )
|
|
|
|
{
|
|
|
|
struct debug_ctx *debug_ctx = current->debug_ctx;
|
2000-01-04 03:24:43 +01:00
|
|
|
struct object *obj = &debug_ctx->obj;
|
|
|
|
int flags = 0;
|
1999-05-23 21:53:30 +02:00
|
|
|
|
|
|
|
if (!debug_ctx) /* current thread is not a debugger */
|
|
|
|
{
|
2000-01-24 22:58:06 +01:00
|
|
|
set_error( STATUS_INVALID_HANDLE );
|
1999-05-23 21:53:30 +02:00
|
|
|
return 0;
|
|
|
|
}
|
2000-01-04 03:24:43 +01:00
|
|
|
if (timeout != -1) flags = SELECT_TIMEOUT;
|
|
|
|
return sleep_on( 1, &obj, flags, timeout, build_wait_debug_reply );
|
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_event *event;
|
|
|
|
struct debug_ctx *debug_ctx = current->debug_ctx;
|
1999-05-23 21:53:30 +02:00
|
|
|
|
2000-01-04 03:24:43 +01:00
|
|
|
if (!debug_ctx || process->debugger != current || thread->process != process) goto error;
|
|
|
|
|
|
|
|
/* find the event in the queue */
|
|
|
|
for (event = debug_ctx->event_head; event; event = event->next)
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-04-07 00:05:16 +02:00
|
|
|
if (event->state != EVENT_SENT) continue;
|
2000-01-04 03:24:43 +01:00
|
|
|
if (event->sender == thread) break;
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|
2000-01-04 03:24:43 +01:00
|
|
|
if (!event) goto error;
|
1999-11-24 02:22:14 +01:00
|
|
|
|
2000-04-07 00:05:16 +02:00
|
|
|
assert( event->sender->debug_event == event );
|
|
|
|
|
2000-01-04 03:24:43 +01:00
|
|
|
event->status = status;
|
|
|
|
event->state = EVENT_CONTINUED;
|
|
|
|
wake_up( &event->obj, 0 );
|
1999-11-24 02:22:14 +01:00
|
|
|
|
2000-01-04 03:24:43 +01:00
|
|
|
unlink_event( debug_ctx, event );
|
1999-05-23 21:53:30 +02:00
|
|
|
resume_process( process );
|
|
|
|
return 1;
|
2000-01-04 03:24:43 +01:00
|
|
|
error:
|
|
|
|
/* 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
|
|
|
}
|
|
|
|
|
|
|
|
/* queue a debug event for a debugger */
|
2000-03-10 23:16:10 +01:00
|
|
|
static struct debug_event *queue_debug_event( struct thread *thread, int code, 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_ctx *debug_ctx = debugger->debug_ctx;
|
|
|
|
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
|
|
|
assert( debug_ctx );
|
|
|
|
/* cannot queue a debug event for myself */
|
|
|
|
assert( debugger->process != thread->process );
|
|
|
|
|
|
|
|
/* build the event */
|
2000-01-04 03:24:43 +01:00
|
|
|
if (!(event = alloc_object( &debug_event_ops, -1 ))) return NULL;
|
2000-03-10 23:16:10 +01:00
|
|
|
event->next = NULL;
|
|
|
|
event->prev = NULL;
|
|
|
|
event->state = EVENT_QUEUED;
|
|
|
|
event->sender = (struct thread *)grab_object( thread );
|
|
|
|
event->debugger = (struct thread *)grab_object( debugger );
|
2000-03-08 13:01:30 +01:00
|
|
|
event->data.code = code;
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
link_event( debug_ctx, event );
|
|
|
|
suspend_process( thread->process );
|
|
|
|
return event;
|
|
|
|
}
|
|
|
|
|
2000-03-08 13:01:30 +01:00
|
|
|
/* generate a debug event from inside the server and queue it */
|
2000-03-09 19:18:41 +01:00
|
|
|
void generate_debug_event( struct thread *thread, int code, void *arg )
|
2000-03-08 13:01:30 +01:00
|
|
|
{
|
|
|
|
if (thread->process->debugger)
|
|
|
|
{
|
2000-03-10 23:16:10 +01:00
|
|
|
struct debug_event *event = queue_debug_event( thread, code, arg );
|
2000-03-08 13:01:30 +01:00
|
|
|
if (event) release_object( event );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
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 )
|
|
|
|
{
|
|
|
|
struct thread *thread;
|
|
|
|
|
|
|
|
if (process->debugger) goto error; /* already being debugged */
|
|
|
|
if (process->init_event) goto error; /* still starting up */
|
|
|
|
|
|
|
|
/* make sure we don't create a debugging loop */
|
|
|
|
for (thread = debugger; thread; thread = thread->process->debugger)
|
|
|
|
if (thread->process == process) goto error;
|
|
|
|
|
|
|
|
suspend_process( process );
|
|
|
|
|
|
|
|
/* we must have been able to attach all threads */
|
|
|
|
for (thread = process->thread_list; thread; thread = thread->proc_next)
|
|
|
|
if (!thread->attached)
|
|
|
|
{
|
|
|
|
fprintf( stderr, "%p not attached\n", thread );
|
|
|
|
resume_process( process );
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (set_process_debugger( process, debugger )) return 1;
|
|
|
|
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 */
|
2000-03-30 21:30:24 +02:00
|
|
|
void generate_startup_debug_events( struct process *process, void *entry )
|
2000-03-09 19:18:41 +01:00
|
|
|
{
|
|
|
|
struct process_dll *dll;
|
|
|
|
struct thread *thread = process->thread_list;
|
|
|
|
|
|
|
|
/* generate creation events */
|
2000-03-30 21:30:24 +02:00
|
|
|
generate_debug_event( thread, CREATE_PROCESS_DEBUG_EVENT, entry );
|
2000-03-15 20:45:15 +01:00
|
|
|
while ((thread = thread->proc_next))
|
2000-03-30 21:30:24 +02:00
|
|
|
generate_debug_event( thread, CREATE_THREAD_DEBUG_EVENT, NULL );
|
2000-03-09 19:18:41 +01:00
|
|
|
|
|
|
|
/* generate dll events (in loading order, i.e. reverse list order) */
|
|
|
|
for (dll = &process->exe; dll->next; dll = dll->next);
|
|
|
|
while (dll != &process->exe)
|
|
|
|
{
|
|
|
|
generate_debug_event( process->thread_list, LOAD_DLL_DEBUG_EVENT, dll );
|
|
|
|
dll = dll->prev;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
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 */
|
|
|
|
{
|
2000-01-04 03:24:43 +01:00
|
|
|
if (!(debug_ctx = alloc_object( &debug_ctx_ops, -1 ))) return 0;
|
1999-05-23 21:53:30 +02:00
|
|
|
debug_ctx->event_head = NULL;
|
|
|
|
debug_ctx->event_tail = NULL;
|
|
|
|
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
|
|
|
{
|
|
|
|
/* kill all debugged processes */
|
2000-03-08 13:01:30 +01:00
|
|
|
kill_debugged_processes( thread, thread->exit_code );
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
if (!wait_for_debug_event( req->timeout ))
|
|
|
|
{
|
2000-01-20 19:59:03 +01:00
|
|
|
req->event.code = 0;
|
|
|
|
req->pid = NULL;
|
|
|
|
req->tid = NULL;
|
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)
|
|
|
|
{
|
2000-03-10 23:16:10 +01:00
|
|
|
struct debug_event_exception data;
|
|
|
|
struct debug_event *event;
|
1999-05-23 21:53:30 +02:00
|
|
|
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
|
|
|
|
2000-03-08 13:01:30 +01:00
|
|
|
if (debugger_attach( process, current ))
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-03-30 21:30:24 +02:00
|
|
|
generate_startup_debug_events( process, NULL );
|
2000-03-10 23:16:10 +01:00
|
|
|
resume_process( process );
|
|
|
|
|
|
|
|
data.record.ExceptionCode = EXCEPTION_BREAKPOINT;
|
|
|
|
data.record.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
|
|
|
data.record.ExceptionRecord = NULL;
|
2000-03-30 21:30:24 +02:00
|
|
|
data.record.ExceptionAddress = get_thread_ip( process->thread_list );
|
2000-03-10 23:16:10 +01:00
|
|
|
data.record.NumberParameters = 0;
|
|
|
|
data.first = 1;
|
|
|
|
if ((event = queue_debug_event( process->thread_list, EXCEPTION_DEBUG_EVENT, &data )))
|
|
|
|
release_object( event );
|
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
|
|
|
}
|
|
|
|
|
2000-03-10 23:16:10 +01:00
|
|
|
/* send an exception event */
|
|
|
|
DECL_HANDLER(exception_event)
|
1999-05-23 21:53:30 +02:00
|
|
|
{
|
2000-03-10 23:16:10 +01:00
|
|
|
if (current->process->debugger)
|
1999-06-22 19:26:53 +02:00
|
|
|
{
|
2000-03-10 23:16:10 +01:00
|
|
|
struct debug_event_exception data;
|
|
|
|
struct debug_event *event;
|
|
|
|
|
|
|
|
data.record = req->record;
|
|
|
|
data.first = req->first;
|
|
|
|
if ((event = queue_debug_event( current, EXCEPTION_DEBUG_EVENT, &data )))
|
|
|
|
{
|
|
|
|
struct object *obj = &event->obj;
|
|
|
|
current->context = &req->context;
|
|
|
|
sleep_on( 1, &obj, 0, -1, build_exception_event_reply );
|
|
|
|
release_object( event );
|
|
|
|
}
|
1999-06-22 19:26:53 +02:00
|
|
|
}
|
2000-03-10 23:16:10 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/* send an output string to the debugger */
|
|
|
|
DECL_HANDLER(output_debug_string)
|
|
|
|
{
|
|
|
|
if (current->process->debugger)
|
1999-06-22 19:26:53 +02:00
|
|
|
{
|
2000-03-10 23:16:10 +01:00
|
|
|
struct debug_event *event = queue_debug_event( current, OUTPUT_DEBUG_STRING_EVENT, req );
|
|
|
|
if (event) release_object( event );
|
1999-06-22 19:26:53 +02:00
|
|
|
}
|
1999-05-23 21:53:30 +02:00
|
|
|
}
|