// dump - Dumps a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showinternalframes (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
void CallStack::dump(BOOL showInternalFrames, UINT start_frame) const
{
// The stack was dumped already
if (m_resolved)
{
dumpResolved();
return;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
BYTE symbolBuffer [sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE] = { 0 };
WCHAR lowerCaseName [MAX_PATH];
WCHAR callingModuleName [MAX_PATH];
const size_t max_size = MAXREPORTLENGTH + 1;
// Iterate through each frame in the call stack.
for (UINT32 frame = start_frame; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
g_symbolLock.Enter();
BOOL foundline = FALSE;
DWORD displacement = 0;
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo);
if (foundline && !showInternalFrames) {
wcscpy_s(lowerCaseName, sourceInfo.FileName);
_wcslwr_s(lowerCaseName, wcslen(lowerCaseName) + 1);
if (isInternalModule(lowerCaseName)) {
// Don't show frames in files internal to the heap.
g_symbolLock.Leave();
continue;
}
}
// Initialize structures passed to the symbol handler.
SYMBOL_INFO* functionInfo = (SYMBOL_INFO*)&symbolBuffer;
functionInfo->SizeOfStruct = sizeof(SYMBOL_INFO);
functionInfo->MaxNameLen = MAX_SYMBOL_NAME_LENGTH;
// Try to get the name of the function containing this program
// counter address.
DWORD64 displacement64 = 0;
LPWSTR functionName;
DbgTrace(L"dbghelp32.dll %i: SymFromAddrW\n", GetCurrentThreadId());
if (SymFromAddrW(g_currentProcess, programCounter, &displacement64, functionInfo)) {
functionName = functionInfo->Name;
}
else {
// GetFormattedMessage( GetLastError() );
functionName = L"(Function name unavailable)";
displacement64 = 0;
}
g_symbolLock.Leave();
HMODULE hCallingModule = GetCallingModule(programCounter);
LPWSTR moduleName = L"(Module name unavailable)";
if (hCallingModule &&
GetModuleFileName(hCallingModule, callingModuleName, _countof(callingModuleName)) > 0)
{
moduleName = wcsrchr(callingModuleName, L'\\');
if (moduleName == NULL)
moduleName = wcsrchr(callingModuleName, L'/');
if (moduleName != NULL)
moduleName++;
else
moduleName = callingModuleName;
}
// Use static here to increase performance, and avoid heap allocs. Hopefully this won't
// prove to be an issue in thread safety. If it does, it will have to be simply non-static.
static WCHAR stack_line[MAXREPORTLENGTH + 1] = L"";
int NumChars = -1;
// Display the current stack frame's information.
if (foundline) {
if (displacement == 0)
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" %s (%d): %s!%s\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" %s (%d): %s!%s + 0x%X bytes\n",
sourceInfo.FileName, sourceInfo.LineNumber, moduleName, functionName, displacement);
}
else {
if (displacement64 == 0)
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s\n",
programCounter, moduleName, functionName);
else
NumChars = _snwprintf_s(stack_line, max_size, _TRUNCATE, L" " ADDRESSFORMAT L" (File and line number not available): %s!%s + 0x%X bytes\n",
programCounter, moduleName, functionName, (DWORD)displacement64);
}
Print(stack_line);
}
}
// dump - Dumps a nicely formatted rendition of the CallStack, including
// symbolic information (function names and line numbers) if available.
//
// Note: The symbol handler must be initialized prior to calling this
// function.
//
// - showinternalframes (IN): If true, then all frames in the CallStack will be
// dumped. Otherwise, frames internal to the heap will not be dumped.
//
// Return Value:
//
// None.
//
void CallStack::dump(BOOL showInternalFrames, UINT start_frame) const
{
// The stack was dumped already
if (m_resolved)
{
dumpResolved();
return;
}
if (m_status & CALLSTACK_STATUS_INCOMPLETE) {
// This call stack appears to be incomplete. Using StackWalk64 may be
// more reliable.
Report(L" HINT: The following call stack may be incomplete. Setting \"StackWalkMethod\"\n"
L" in the vld.ini file to \"safe\" instead of \"fast\" may result in a more\n"
L" complete stack trace.\n");
}
IMAGEHLP_LINE64 sourceInfo = { 0 };
sourceInfo.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
// Use static here to increase performance, and avoid heap allocs.
// It's thread safe because of g_heapMapLock lock.
static WCHAR stack_line[MAXREPORTLENGTH + 1] = L"";
bool isPrevFrameInternal = false;
CriticalSectionLocker<DbgHelp> locker(g_DbgHelp);
// Iterate through each frame in the call stack.
for (UINT32 frame = start_frame; frame < m_size; frame++)
{
// Try to get the source file and line number associated with
// this program counter address.
SIZE_T programCounter = (*this)[frame];
BOOL foundline = FALSE;
DWORD displacement = 0;
DbgTrace(L"dbghelp32.dll %i: SymGetLineFromAddrW64\n", GetCurrentThreadId());
foundline = g_DbgHelp.SymGetLineFromAddrW64(g_currentProcess, programCounter, &displacement, &sourceInfo, locker);
bool isFrameInternal = false;
if (foundline && !showInternalFrames) {
if (isInternalModule(sourceInfo.FileName))
{
// Don't show frames in files internal to the heap.
isFrameInternal = true;
}
}
// show one allocation function for context
if (!isFrameInternal && isPrevFrameInternal)
Print(stack_line);
isPrevFrameInternal = isFrameInternal;
DWORD64 displacement64;
BYTE symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYMBOL_NAME_SIZE];
LPCWSTR functionName = getFunctionName(programCounter, displacement64, (SYMBOL_INFO*)&symbolBuffer, locker);
if (!foundline)
displacement = (DWORD)displacement64;
DWORD NumChars = resolveFunction(programCounter, foundline ? &sourceInfo : NULL,
displacement, functionName, stack_line, _countof(stack_line));
UNREFERENCED_PARAMETER(NumChars);
if (!isFrameInternal)
Print(stack_line);
}
}
