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Sweden-Number/dlls/kernel/debugger.c

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/*
* Win32 debugger functions
*
* Copyright (C) 1999 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include "winerror.h"
#include "wine/winbase16.h"
#include "wine/server.h"
#include "stackframe.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(debugstr);
/******************************************************************************
* WaitForDebugEvent (KERNEL32.@)
*
* Waits for a debugging event to occur in a process being debugged before
* filling out the debug event structure.
*
* RETURNS
*
* Returns true if a debug event occurred and false if the call timed out.
*/
BOOL WINAPI WaitForDebugEvent(
LPDEBUG_EVENT event, /* [out] Address of structure for event information. */
DWORD timeout) /* [in] Number of milliseconds to wait for event. */
{
BOOL ret;
DWORD res;
for (;;)
{
HANDLE wait = 0;
debug_event_t data;
SERVER_START_REQ( wait_debug_event )
{
req->get_handle = (timeout != 0);
wine_server_set_reply( req, &data, sizeof(data) );
if (!(ret = !wine_server_call_err( req ))) goto done;
if (!wine_server_reply_size(reply)) /* timeout */
{
wait = reply->wait;
ret = FALSE;
goto done;
}
event->dwDebugEventCode = data.code;
event->dwProcessId = (DWORD)reply->pid;
event->dwThreadId = (DWORD)reply->tid;
switch(data.code)
{
case EXCEPTION_DEBUG_EVENT:
event->u.Exception.ExceptionRecord = data.info.exception.record;
event->u.Exception.dwFirstChance = data.info.exception.first;
break;
case CREATE_THREAD_DEBUG_EVENT:
event->u.CreateThread.hThread = data.info.create_thread.handle;
event->u.CreateThread.lpThreadLocalBase = data.info.create_thread.teb;
event->u.CreateThread.lpStartAddress = data.info.create_thread.start;
break;
case CREATE_PROCESS_DEBUG_EVENT:
event->u.CreateProcessInfo.hFile = data.info.create_process.file;
event->u.CreateProcessInfo.hProcess = data.info.create_process.process;
event->u.CreateProcessInfo.hThread = data.info.create_process.thread;
event->u.CreateProcessInfo.lpBaseOfImage = data.info.create_process.base;
event->u.CreateProcessInfo.dwDebugInfoFileOffset = data.info.create_process.dbg_offset;
event->u.CreateProcessInfo.nDebugInfoSize = data.info.create_process.dbg_size;
event->u.CreateProcessInfo.lpThreadLocalBase = data.info.create_process.teb;
event->u.CreateProcessInfo.lpStartAddress = data.info.create_process.start;
event->u.CreateProcessInfo.lpImageName = data.info.create_process.name;
event->u.CreateProcessInfo.fUnicode = data.info.create_process.unicode;
break;
case EXIT_THREAD_DEBUG_EVENT:
event->u.ExitThread.dwExitCode = data.info.exit.exit_code;
break;
case EXIT_PROCESS_DEBUG_EVENT:
event->u.ExitProcess.dwExitCode = data.info.exit.exit_code;
break;
case LOAD_DLL_DEBUG_EVENT:
event->u.LoadDll.hFile = data.info.load_dll.handle;
event->u.LoadDll.lpBaseOfDll = data.info.load_dll.base;
event->u.LoadDll.dwDebugInfoFileOffset = data.info.load_dll.dbg_offset;
event->u.LoadDll.nDebugInfoSize = data.info.load_dll.dbg_size;
event->u.LoadDll.lpImageName = data.info.load_dll.name;
event->u.LoadDll.fUnicode = data.info.load_dll.unicode;
break;
case UNLOAD_DLL_DEBUG_EVENT:
event->u.UnloadDll.lpBaseOfDll = data.info.unload_dll.base;
break;
case OUTPUT_DEBUG_STRING_EVENT:
event->u.DebugString.lpDebugStringData = data.info.output_string.string;
event->u.DebugString.fUnicode = data.info.output_string.unicode;
event->u.DebugString.nDebugStringLength = data.info.output_string.length;
break;
case RIP_EVENT:
event->u.RipInfo.dwError = data.info.rip_info.error;
event->u.RipInfo.dwType = data.info.rip_info.type;
break;
}
done:
/* nothing */ ;
}
SERVER_END_REQ;
if (ret) return TRUE;
if (!wait) break;
res = WaitForSingleObject( wait, timeout );
CloseHandle( wait );
if (res != STATUS_WAIT_0) break;
}
SetLastError( ERROR_SEM_TIMEOUT );
return FALSE;
}
/**********************************************************************
* ContinueDebugEvent (KERNEL32.@)
*
* Enables a thread that previously produced a debug event to continue.
*
* RETURNS
*
* True if the debugger is listed as the processes owner and the process
* and thread are valid.
*/
BOOL WINAPI ContinueDebugEvent(
DWORD pid, /* [in] The id of the process to continue. */
DWORD tid, /* [in] The id of the thread to continue. */
DWORD status) /* [in] The rule to apply to unhandled exeptions. */
{
BOOL ret;
SERVER_START_REQ( continue_debug_event )
{
req->pid = (void *)pid;
req->tid = (void *)tid;
req->status = status;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* DebugActiveProcess (KERNEL32.@)
*
* Attempts to attach the debugger to a process.
*
* RETURNS
*
* True if the debugger was attached to process.
*/
BOOL WINAPI DebugActiveProcess(
DWORD pid) /* [in] The process to be debugged. */
{
BOOL ret;
SERVER_START_REQ( debug_process )
{
req->pid = (void *)pid;
req->attach = 1;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* DebugActiveProcessStop (KERNEL32.@)
*
* Attempts to detach the debugger from a process.
*
* RETURNS
*
* True if the debugger was detached from the process.
*/
BOOL WINAPI DebugActiveProcessStop(
DWORD pid) /* [in] The process to be detached. */
{
BOOL ret;
SERVER_START_REQ( debug_process )
{
req->pid = (void *)pid;
req->attach = 0;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* OutputDebugStringA (KERNEL32.@)
*
* Output by an application of a unicode string to a debugger (if attached)
* and program log.
*/
void WINAPI OutputDebugStringA(
LPCSTR str) /* [in] The message to be logged and given to the debugger. */
{
SERVER_START_REQ( output_debug_string )
{
req->string = (void *)str;
req->unicode = 0;
req->length = strlen(str) + 1;
wine_server_call( req );
}
SERVER_END_REQ;
WARN("%s\n", str);
}
/***********************************************************************
* OutputDebugStringW (KERNEL32.@)
*
* Output by an appliccation of a unicode string to a debugger (if attached)
* and program log.
*/
void WINAPI OutputDebugStringW(
LPCWSTR str) /* [in] The message to be logged and given to the debugger. */
{
SERVER_START_REQ( output_debug_string )
{
req->string = (void *)str;
req->unicode = 1;
req->length = (lstrlenW(str) + 1) * sizeof(WCHAR);
wine_server_call( req );
}
SERVER_END_REQ;
WARN("%s\n", debugstr_w(str));
}
/***********************************************************************
* OutputDebugString (KERNEL.115)
*
* Output by a 16 bit application of an ascii string to a debugger (if attached)
* and program log.
*/
void WINAPI OutputDebugString16(
LPCSTR str) /* [in] The message to be logged and given to the debugger. */
{
OutputDebugStringA( str );
}
/***********************************************************************
* DebugBreak (KERNEL32.@)
*
* Raises an exception so that a debugger (if attached)
* can take some action.
*/
void WINAPI DebugBreak(void)
{
DbgBreakPoint();
}
/***********************************************************************
* DebugBreakProcess (KERNEL32.@)
*
* Raises an exception so that a debugger (if attached)
* can take some action. Same as DebugBreak, but applies to any process.
*/
BOOL WINAPI DebugBreakProcess(HANDLE hProc)
{
BOOL ret, self;
TRACE("(%08x)\n", hProc);
SERVER_START_REQ( debug_break )
{
req->handle = hProc;
ret = !wine_server_call_err( req );
self = ret && reply->self;
}
SERVER_END_REQ;
if (self) DbgBreakPoint();
return ret;
}
/***********************************************************************
* DebugBreak (KERNEL.203)
*
* Raises an expection in a 16 bit application so that a debugger (if attached)
* can take some action.
*
* BUGS
*
* Only 386 compatible processors implemented.
*/
void WINAPI DebugBreak16(
CONTEXT86 *context) /* [in/out] A pointer to the 386 compatible processor state. */
{
#ifdef __i386__
EXCEPTION_RECORD rec;
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
rec.ExceptionFlags = 0;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = (LPVOID)context->Eip;
rec.NumberParameters = 0;
NtRaiseException( &rec, context, TRUE );
#endif /* defined(__i386__) */
}
/***********************************************************************
* IsDebuggerPresent (KERNEL32.@)
*
* Allows a process to determine if there is a debugger attached.
*
* RETURNS
*
* True if there is a debugger attached.
*/
BOOL WINAPI IsDebuggerPresent(void)
{
BOOL ret = FALSE;
SERVER_START_REQ( get_process_info )
{
req->handle = GetCurrentProcess();
if (!wine_server_call_err( req )) ret = reply->debugged;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* _DebugOutput (KERNEL.328)
*/
void WINAPIV _DebugOutput( void )
{
VA_LIST16 valist;
WORD flags;
SEGPTR spec;
char caller[101];
/* Decode caller address */
if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
/* Build debug message string */
VA_START16( valist );
flags = VA_ARG16( valist, WORD );
spec = VA_ARG16( valist, SEGPTR );
/* FIXME: cannot use wvsnprintf16 from kernel */
/* wvsnprintf16( temp, sizeof(temp), MapSL(spec), valist ); */
/* Output */
FIXME("%s %04x %s\n", caller, flags, debugstr_a(MapSL(spec)) );
}
/***********************************************************************
* DebugSetProcessKillOnExit (KERNEL32.@)
*
* Let a debugger decide wether a debuggee will be killed upon debugger
* termination
*/
BOOL WINAPI DebugSetProcessKillOnExit(BOOL kill)
{
BOOL ret = FALSE;
SERVER_START_REQ( set_debugger_kill_on_exit )
{
req->kill_on_exit = kill;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
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