scheduler/debugger.c

   1 /*
   2  * Win32 debugger functions
   3  *
   4  * Copyright (C) 1999 Alexandre Julliard
   5  */
   6
   7 #include <string.h>
   8
   9 #include "winerror.h"
  10 #include "server.h"
  11 #include "debugtools.h"
  12
  13 DEFAULT_DEBUG_CHANNEL(debugstr);
  14
  15
  16 /******************************************************************************
  17  *           WaitForDebugEvent   (KERNEL32.720)
  18  *
  19  * Waits for a debugging event to occur in a process being debugged
  20  *
  21  * PARAMS
  22  *    event   [I] Address of structure for event information
  23  *    timeout [I] Number of milliseconds to wait for event
  24  *
  25  * RETURNS STD
  26  */
  27 BOOL WINAPI WaitForDebugEvent( LPDEBUG_EVENT event, DWORD timeout )
  28 {
  29     struct wait_debug_event_request *req = get_req_buffer();
  30
  31     req->timeout = timeout;
  32     if (server_call( REQ_WAIT_DEBUG_EVENT )) return FALSE;
  33     if ((req->event.code < 0) || (req->event.code > RIP_EVENT))
  34         server_protocol_error( "WaitForDebugEvent: bad code %d\n", req->event.code );
  35
  36     event->dwDebugEventCode = req->event.code;
  37     event->dwProcessId      = (DWORD)req->pid;
  38     event->dwThreadId       = (DWORD)req->tid;
  39     switch(req->event.code)
  40     {
  41     case 0:  /* timeout */
  42         SetLastError( ERROR_SEM_TIMEOUT );
  43         return FALSE;
  44     case EXCEPTION_DEBUG_EVENT:
  45         event->u.Exception.ExceptionRecord = req->event.info.exception.record;
  46         event->u.Exception.dwFirstChance   = req->event.info.exception.first;
  47         break;
  48     case CREATE_THREAD_DEBUG_EVENT:
  49         event->u.CreateThread.hThread           = req->event.info.create_thread.handle;
  50         event->u.CreateThread.lpThreadLocalBase = req->event.info.create_thread.teb;
  51         event->u.CreateThread.lpStartAddress    = req->event.info.create_thread.start;
  52         break;
  53     case CREATE_PROCESS_DEBUG_EVENT:
  54         event->u.CreateProcessInfo.hFile                 = req->event.info.create_process.file;
  55         event->u.CreateProcessInfo.hProcess              = req->event.info.create_process.process;
  56         event->u.CreateProcessInfo.hThread               = req->event.info.create_process.thread;
  57         event->u.CreateProcessInfo.lpBaseOfImage         = req->event.info.create_process.base;
  58         event->u.CreateProcessInfo.dwDebugInfoFileOffset = req->event.info.create_process.dbg_offset;
  59         event->u.CreateProcessInfo.nDebugInfoSize        = req->event.info.create_process.dbg_size;
  60         event->u.CreateProcessInfo.lpThreadLocalBase     = req->event.info.create_process.teb;
  61         event->u.CreateProcessInfo.lpStartAddress        = req->event.info.create_process.start;
  62         event->u.CreateProcessInfo.lpImageName           = req->event.info.create_process.name;
  63         event->u.CreateProcessInfo.fUnicode              = req->event.info.create_process.unicode;
  64         if (req->event.info.create_process.file == -1) event->u.CreateProcessInfo.hFile = 0;
  65         break;
  66     case EXIT_THREAD_DEBUG_EVENT:
  67         event->u.ExitThread.dwExitCode = req->event.info.exit.exit_code;
  68         break;
  69     case EXIT_PROCESS_DEBUG_EVENT:
  70         event->u.ExitProcess.dwExitCode = req->event.info.exit.exit_code;
  71         break;
  72     case LOAD_DLL_DEBUG_EVENT:
  73         event->u.LoadDll.hFile                 = req->event.info.load_dll.handle;
  74         event->u.LoadDll.lpBaseOfDll           = req->event.info.load_dll.base;
  75         event->u.LoadDll.dwDebugInfoFileOffset = req->event.info.load_dll.dbg_offset;
  76         event->u.LoadDll.nDebugInfoSize        = req->event.info.load_dll.dbg_size;
  77         event->u.LoadDll.lpImageName           = req->event.info.load_dll.name;
  78         event->u.LoadDll.fUnicode              = req->event.info.load_dll.unicode;
  79         if (req->event.info.load_dll.handle == -1) event->u.LoadDll.hFile = 0;
  80         break;
  81     case UNLOAD_DLL_DEBUG_EVENT:
  82         event->u.UnloadDll.lpBaseOfDll = req->event.info.unload_dll.base;
  83         break;
  84     case OUTPUT_DEBUG_STRING_EVENT:
  85         event->u.DebugString.lpDebugStringData  = req->event.info.output_string.string;
  86         event->u.DebugString.fUnicode           = req->event.info.output_string.unicode;
  87         event->u.DebugString.nDebugStringLength = req->event.info.output_string.length;
  88         break;
  89     case RIP_EVENT:
  90         event->u.RipInfo.dwError = req->event.info.rip_info.error;
  91         event->u.RipInfo.dwType  = req->event.info.rip_info.type;
  92         break;
  93     }
  94     return TRUE;
  95 }
  96
  97
  98 /**********************************************************************
  99  *           ContinueDebugEvent   (KERNEL32.146)
 100  */
 101 BOOL WINAPI ContinueDebugEvent( DWORD pid, DWORD tid, DWORD status )
 102 {
 103     struct continue_debug_event_request *req = get_req_buffer();
 104     req->pid    = (void *)pid;
 105     req->tid    = (void *)tid;
 106     req->status = status;
 107     return !server_call( REQ_CONTINUE_DEBUG_EVENT );
 108 }
 109
 110
 111 /**********************************************************************
 112  *           DebugActiveProcess   (KERNEL32.180)
 113  */
 114 BOOL WINAPI DebugActiveProcess( DWORD pid )
 115 {
 116     struct debug_process_request *req = get_req_buffer();
 117     req->pid = (void *)pid;
 118     return !server_call( REQ_DEBUG_PROCESS );
 119 }
 120
 121
 122 /***********************************************************************
 123  *           OutputDebugStringA   (KERNEL32.548)
 124  */
 125 void WINAPI OutputDebugStringA( LPCSTR str )
 126 {
 127     struct output_debug_string_request *req = get_req_buffer();
 128     req->string  = (void *)str;
 129     req->unicode = 0;
 130     req->length  = strlen(str) + 1;
 131     server_call_noerr( REQ_OUTPUT_DEBUG_STRING );
 132     TRACE("%s\n", str);
 133 }
 134
 135
 136 /***********************************************************************
 137  *           OutputDebugStringW   (KERNEL32.549)
 138  */
 139 void WINAPI OutputDebugStringW( LPCWSTR str )
 140 {
 141     struct output_debug_string_request *req = get_req_buffer();
 142     req->string  = (void *)str;
 143     req->unicode = 1;
 144     req->length  = (lstrlenW(str) + 1) * sizeof(WCHAR);
 145     server_call_noerr( REQ_OUTPUT_DEBUG_STRING );
 146     TRACE("%s\n", debugstr_w(str));
 147 }
 148
 149
 150 /***********************************************************************
 151  *           OutputDebugString16   (KERNEL.115)
 152  */
 153 void WINAPI OutputDebugString16( LPCSTR str )
 154 {
 155     OutputDebugStringA( str );
 156 }
 157
 158
 159 /***********************************************************************
 160  *           DebugBreak   (KERNEL32.181)
 161  */
 162 void WINAPI DebugBreak(void)
 163 {
 164     DbgBreakPoint();
 165 }
 166
 167
 168 /***********************************************************************
 169  *           DebugBreak16   (KERNEL.203)
 170  */
 171 void WINAPI DebugBreak16( CONTEXT86 *context )
 172 {
 173 #ifdef __i386__
 174     EXCEPTION_RECORD rec;
 175
 176     rec.ExceptionCode    = EXCEPTION_BREAKPOINT;
 177     rec.ExceptionFlags   = 0;
 178     rec.ExceptionRecord  = NULL;
 179     rec.ExceptionAddress = GET_IP(context);
 180     rec.NumberParameters = 0;
 181     NtRaiseException( &rec, context, TRUE );
 182 #endif  /* defined(__i386__) */
 183 }
 184
 185
 186 /***********************************************************************
 187  *           IsDebuggerPresent   (KERNEL32)
 188  */
 189 BOOL WINAPI IsDebuggerPresent(void)
 190 {
 191     BOOL ret = FALSE;
 192     struct get_process_info_request *req = get_req_buffer();
 193     req->handle = GetCurrentProcess();
 194     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->debugged;
 195     return ret;
 196 }