/******************************************************************
* dbg_init
*
* Initializes the dbghelp library, and also sets the application directory
* as a place holder for symbol searches.
*/
BOOL dbg_init(HANDLE hProc, const WCHAR* in, BOOL invade)
{
BOOL ret;
ret = SymInitialize(hProc, NULL, invade);
if (ret && in)
{
const WCHAR* last;
for (last = in + lstrlenW(in) - 1; last >= in; last--)
{
if (*last == '/' || *last == '\\')
{
WCHAR* tmp;
tmp = HeapAlloc(GetProcessHeap(), 0, (1024 + 1 + (last - in) + 1) * sizeof(WCHAR));
if (tmp && SymGetSearchPathW(hProc, tmp, 1024))
{
WCHAR* x = tmp + lstrlenW(tmp);
*x++ = ';';
memcpy(x, in, (last - in) * sizeof(WCHAR));
x[last - in] = '\0';
ret = SymSetSearchPathW(hProc, tmp);
}
else ret = FALSE;
HeapFree(GetProcessHeap(), 0, tmp);
break;
}
}
}
return ret;
}
/**
* Loads modules for current process.
*/
static void LoadProcessModules(const FString &RemoteStorage)
{
int32 ErrorCode = 0;
HANDLE ProcessHandle = GetCurrentProcess();
// Enumerate process modules.
HMODULE* ModuleHandlePointer = GetProcessModules(ProcessHandle);
if (!ModuleHandlePointer)
{
ErrorCode = GetLastError();
return;
}
// Load the modules.
for( int32 ModuleIndex = 0; ModuleHandlePointer[ModuleIndex]; ModuleIndex++ )
{
MODULEINFO ModuleInfo = {0};
#if WINVER > 0x502
WCHAR ModuleName[FProgramCounterSymbolInfo::MAX_NAME_LENGHT] = {0};
WCHAR ImageName[FProgramCounterSymbolInfo::MAX_NAME_LENGHT] = {0};
#else
ANSICHAR ModuleName[FProgramCounterSymbolInfo::MAX_NAME_LENGHT] = { 0 };
ANSICHAR ImageName[FProgramCounterSymbolInfo::MAX_NAME_LENGHT] = { 0 };
#endif
#if PLATFORM_64BITS
static_assert(sizeof( MODULEINFO ) == 24, "Broken alignment for 64bit Windows include.");
#else
static_assert(sizeof( MODULEINFO ) == 12, "Broken alignment for 32bit Windows include.");
#endif
FGetModuleInformation( ProcessHandle, ModuleHandlePointer[ModuleIndex], &ModuleInfo, sizeof( ModuleInfo ) );
FGetModuleFileNameEx( ProcessHandle, ModuleHandlePointer[ModuleIndex], ImageName, FProgramCounterSymbolInfo::MAX_NAME_LENGHT );
FGetModuleBaseName( ProcessHandle, ModuleHandlePointer[ModuleIndex], ModuleName, FProgramCounterSymbolInfo::MAX_NAME_LENGHT );
// Set the search path to find PDBs in the same folder as the DLL.
#if WINVER > 0x502
WCHAR SearchPath[MAX_PATH] = {0};
WCHAR* FileName = NULL;
const auto Result = GetFullPathNameW( ImageName, MAX_PATH, SearchPath, &FileName );
#else
ANSICHAR SearchPath[MAX_PATH] = { 0 };
ANSICHAR* FileName = NULL;
const auto Result = GetFullPathNameA( ImageName, MAX_PATH, SearchPath, &FileName );
#endif
FString SearchPathList;
if (Result != 0 && Result < MAX_PATH)
{
*FileName = 0;
#if WINVER > 0x502
SearchPathList = SearchPath;
#else
SearchPathList = ANSI_TO_TCHAR(SearchPath);
#endif
}
if (!RemoteStorage.IsEmpty())
{
if (!SearchPathList.IsEmpty())
{
SearchPathList.AppendChar(';');
}
SearchPathList.Append(RemoteStorage);
}
#if WINVER > 0x502
SymSetSearchPathW(ProcessHandle, *SearchPathList);
// Load module.
const DWORD64 BaseAddress = SymLoadModuleExW( ProcessHandle, ModuleHandlePointer[ModuleIndex], ImageName, ModuleName, (DWORD64) ModuleInfo.lpBaseOfDll, (uint32) ModuleInfo.SizeOfImage, NULL, 0 );
if( !BaseAddress )
{
ErrorCode = GetLastError();
UE_LOG(LogWindows, Warning, TEXT("SymLoadModuleExW. Error: %d"), GetLastError());
}
#else
SymSetSearchPath(ProcessHandle, TCHAR_TO_ANSI(*SearchPathList));
// Load module.
const DWORD64 BaseAddress = SymLoadModuleEx( ProcessHandle, ModuleHandlePointer[ModuleIndex], ImageName, ModuleName, (DWORD64)ModuleInfo.lpBaseOfDll, (uint32)ModuleInfo.SizeOfImage, NULL, 0 );
if (!BaseAddress)
{
ErrorCode = GetLastError();
UE_LOG(LogWindows, Warning, TEXT("SymLoadModuleEx. Error: %d"), GetLastError());
}
#endif
}
// Free the module handle pointer allocated in case the static array was insufficient.
FMemory::Free(ModuleHandlePointer);
}