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312 lines
10 KiB
C
312 lines
10 KiB
C
/*
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* Win32 debugger functions
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*
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* Copyright (C) 1999 Alexandre Julliard
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*/
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#include <stdio.h>
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#include <string.h>
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#include "winerror.h"
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#include "wine/winbase16.h"
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#include "server.h"
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#include "stackframe.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(debugstr);
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/******************************************************************************
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* WaitForDebugEvent (KERNEL32.720)
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*
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* Waits for a debugging event to occur in a process being debugged before
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* filling out the debug event structure.
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*
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* RETURNS
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*
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* Returns true if a debug event occurred and false if the call timed out.
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*/
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BOOL WINAPI WaitForDebugEvent(
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LPDEBUG_EVENT event, /* [out] Address of structure for event information. */
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DWORD timeout) /* [in] Number of milliseconds to wait for event. */
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{
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BOOL ret;
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DWORD res;
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for (;;)
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{
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HANDLE wait = 0;
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debug_event_t *data;
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SERVER_START_VAR_REQ( wait_debug_event, sizeof(*data) )
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{
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req->get_handle = (timeout != 0);
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if (!(ret = !SERVER_CALL_ERR())) goto done;
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if (!server_data_size(req)) /* timeout */
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{
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wait = req->wait;
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ret = FALSE;
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goto done;
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}
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data = server_data_ptr(req);
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event->dwDebugEventCode = data->code;
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event->dwProcessId = (DWORD)req->pid;
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event->dwThreadId = (DWORD)req->tid;
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switch(data->code)
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{
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case EXCEPTION_DEBUG_EVENT:
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event->u.Exception.ExceptionRecord = data->info.exception.record;
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event->u.Exception.dwFirstChance = data->info.exception.first;
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break;
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case CREATE_THREAD_DEBUG_EVENT:
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event->u.CreateThread.hThread = data->info.create_thread.handle;
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event->u.CreateThread.lpThreadLocalBase = data->info.create_thread.teb;
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event->u.CreateThread.lpStartAddress = data->info.create_thread.start;
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break;
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case CREATE_PROCESS_DEBUG_EVENT:
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event->u.CreateProcessInfo.hFile = data->info.create_process.file;
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event->u.CreateProcessInfo.hProcess = data->info.create_process.process;
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event->u.CreateProcessInfo.hThread = data->info.create_process.thread;
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event->u.CreateProcessInfo.lpBaseOfImage = data->info.create_process.base;
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event->u.CreateProcessInfo.dwDebugInfoFileOffset = data->info.create_process.dbg_offset;
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event->u.CreateProcessInfo.nDebugInfoSize = data->info.create_process.dbg_size;
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event->u.CreateProcessInfo.lpThreadLocalBase = data->info.create_process.teb;
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event->u.CreateProcessInfo.lpStartAddress = data->info.create_process.start;
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event->u.CreateProcessInfo.lpImageName = data->info.create_process.name;
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event->u.CreateProcessInfo.fUnicode = data->info.create_process.unicode;
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if (data->info.create_process.file == -1) event->u.CreateProcessInfo.hFile = 0;
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break;
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case EXIT_THREAD_DEBUG_EVENT:
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event->u.ExitThread.dwExitCode = data->info.exit.exit_code;
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break;
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case EXIT_PROCESS_DEBUG_EVENT:
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event->u.ExitProcess.dwExitCode = data->info.exit.exit_code;
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break;
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case LOAD_DLL_DEBUG_EVENT:
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event->u.LoadDll.hFile = data->info.load_dll.handle;
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event->u.LoadDll.lpBaseOfDll = data->info.load_dll.base;
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event->u.LoadDll.dwDebugInfoFileOffset = data->info.load_dll.dbg_offset;
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event->u.LoadDll.nDebugInfoSize = data->info.load_dll.dbg_size;
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event->u.LoadDll.lpImageName = data->info.load_dll.name;
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event->u.LoadDll.fUnicode = data->info.load_dll.unicode;
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if (data->info.load_dll.handle == -1) event->u.LoadDll.hFile = 0;
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break;
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case UNLOAD_DLL_DEBUG_EVENT:
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event->u.UnloadDll.lpBaseOfDll = data->info.unload_dll.base;
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break;
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case OUTPUT_DEBUG_STRING_EVENT:
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event->u.DebugString.lpDebugStringData = data->info.output_string.string;
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event->u.DebugString.fUnicode = data->info.output_string.unicode;
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event->u.DebugString.nDebugStringLength = data->info.output_string.length;
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break;
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case RIP_EVENT:
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event->u.RipInfo.dwError = data->info.rip_info.error;
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event->u.RipInfo.dwType = data->info.rip_info.type;
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break;
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}
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done:
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}
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SERVER_END_VAR_REQ;
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if (ret) return TRUE;
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if (!wait) break;
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res = WaitForSingleObject( wait, timeout );
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CloseHandle( wait );
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if (res != STATUS_WAIT_0) break;
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}
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SetLastError( ERROR_SEM_TIMEOUT );
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return FALSE;
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}
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/**********************************************************************
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* ContinueDebugEvent (KERNEL32.146)
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* ContinueDebugEvent (WIN32S16.5)
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*
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* Enables a thread that previously produced a debug event to continue.
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*
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* RETURNS
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*
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* True if the debugger is listed as the processes owner and the process
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* and thread are valid.
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*/
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BOOL WINAPI ContinueDebugEvent(
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DWORD pid, /* [in] The id of the process to continue. */
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DWORD tid, /* [in] The id of the thread to continue. */
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DWORD status) /* [in] The rule to apply to unhandled exeptions. */
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{
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BOOL ret;
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SERVER_START_REQ( continue_debug_event )
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{
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req->pid = (void *)pid;
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req->tid = (void *)tid;
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req->status = status;
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ret = !SERVER_CALL_ERR();
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}
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SERVER_END_REQ;
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return ret;
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}
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/**********************************************************************
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* DebugActiveProcess (KERNEL32.180)
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*
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* Attempts to attach the dugger to a process.
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*
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* RETURNS
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*
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* True if the debugger was attached to process.
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*/
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BOOL WINAPI DebugActiveProcess(
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DWORD pid) /* [in] The process to be debugged. */
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{
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BOOL ret;
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SERVER_START_REQ( debug_process )
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{
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req->pid = (void *)pid;
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ret = !SERVER_CALL_ERR();
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* OutputDebugStringA (KERNEL.115)
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* OutputDebugStringA (KERNEL32.548)
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*
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* Output by an application of a unicode string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugStringA(
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LPCSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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SERVER_START_REQ( output_debug_string )
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{
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req->string = (void *)str;
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req->unicode = 0;
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req->length = strlen(str) + 1;
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SERVER_CALL();
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}
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SERVER_END_REQ;
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WARN("%s\n", str);
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}
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/***********************************************************************
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* OutputDebugStringW (KERNEL32.549)
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*
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* Output by an appliccation of a unicode string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugStringW(
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LPCWSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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SERVER_START_REQ( output_debug_string )
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{
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req->string = (void *)str;
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req->unicode = 1;
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req->length = (lstrlenW(str) + 1) * sizeof(WCHAR);
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SERVER_CALL();
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}
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SERVER_END_REQ;
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WARN("%s\n", debugstr_w(str));
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}
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/***********************************************************************
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* OutputDebugString16 (KERNEL.115)
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*
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* Output by a 16 bit application of an ascii string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugString16(
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LPCSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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OutputDebugStringA( str );
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}
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/***********************************************************************
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* DebugBreak (KERNEL32.181)
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*
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* Raises an exception so that a debugger (if attached)
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* can take some action.
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*/
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void WINAPI DebugBreak(void)
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{
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DbgBreakPoint();
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}
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/***********************************************************************
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* DebugBreak16 (KERNEL.203)
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*
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* Raises an expection in a 16 bit application so that a debugger (if attached)
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* can take some action.
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*
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* BUGS
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*
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* Only 386 compatible processors implemented.
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*/
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void WINAPI DebugBreak16(
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CONTEXT86 *context) /* [in/out] A pointer to the 386 compatible processor state. */
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{
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#ifdef __i386__
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EXCEPTION_RECORD rec;
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rec.ExceptionCode = EXCEPTION_BREAKPOINT;
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rec.ExceptionFlags = 0;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = (LPVOID)context->Eip;
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rec.NumberParameters = 0;
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NtRaiseException( &rec, context, TRUE );
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#endif /* defined(__i386__) */
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}
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/***********************************************************************
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* IsDebuggerPresent (KERNEL32.827)
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*
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* Allows a process to determine if there is a debugger attached.
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*
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* RETURNS
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*
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* True if there is a debugger attached.
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*/
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BOOL WINAPI IsDebuggerPresent(void)
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{
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BOOL ret = FALSE;
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SERVER_START_REQ( get_process_info )
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{
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req->handle = GetCurrentProcess();
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if (!SERVER_CALL_ERR()) ret = req->debugged;
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* _DebugOutput (KERNEL.328)
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*/
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void WINAPIV _DebugOutput( void )
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{
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VA_LIST16 valist;
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WORD flags;
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SEGPTR spec;
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char caller[101];
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/* Decode caller address */
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if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
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sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
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/* Build debug message string */
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VA_START16( valist );
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flags = VA_ARG16( valist, WORD );
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spec = VA_ARG16( valist, SEGPTR );
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/* FIXME: cannot use wvsnprintf16 from kernel */
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/* wvsnprintf16( temp, sizeof(temp), MapSL(spec), valist ); */
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/* Output */
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FIXME("%s %04x %s\n", caller, flags, debugstr_a(MapSL(spec)) );
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}
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