/////////////////////////////////////////////////////////////////////////////
-// Name: msw/stackwalk.cpp
+// Name: src/msw/stackwalk.cpp
// Purpose: wxStackWalker implementation for Win32
// Author: Vadim Zeitlin
// Modified by:
wxZeroMemory(symbolBuffer);
PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)symbolBuffer;
- pSymbol->SizeOfStruct = sizeof(symbolBuffer);
+ pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
pSymbol->MaxNameLen = MAX_NAME_LEN;
DWORD64 symDisplacement = 0;
pSymbol
) )
{
- wxDbgHelpDLL::LogError(_T("SymFromAddr"));
+ wxDbgHelpDLL::LogError(wxT("SymFromAddr"));
return;
}
{
// it is normal that we don't have source info for some symbols,
// notably all the ones from the system DLLs...
- //wxDbgHelpDLL::LogError(_T("SymGetLineFromAddr"));
+ //wxDbgHelpDLL::LogError(wxT("SymGetLineFromAddr"));
return;
}
void wxStackFrame::OnParam(PSYMBOL_INFO pSymInfo)
{
- m_paramTypes.Add(_T(""));
+ m_paramTypes.Add(wxEmptyString);
m_paramNames.Add(wxString::FromAscii(pSymInfo->Name));
// if symbol information is corrupted and we crash, the exception is going
// to be ignored when we're called from WalkFromException() because of the
- // except handler there returning EXCEPTION_CONTINUE_EXECUTION, but we'd be
- // left in an inconsistent state, so deal with it explicitely here (even if
- // normally we should never crash, of course...)
+ // exception handler there returning EXCEPTION_CONTINUE_EXECUTION, but we'd
+ // be left in an inconsistent state, so deal with it explicitly here (even
+ // if normally we should never crash, of course...)
#ifdef _CPPUNWIND
try
#else
__except ( EXCEPTION_EXECUTE_HANDLER )
#endif
{
- m_paramValues.Add(_T(""));
+ m_paramValues.Add(wxEmptyString);
}
}
BOOL CALLBACK
EnumSymbolsProc(PSYMBOL_INFO pSymInfo, ULONG WXUNUSED(SymSize), PVOID data)
{
- wxStackFrame *frame = wx_static_cast(wxStackFrame *, data);
+ wxStackFrame *frame = static_cast<wxStackFrame *>(data);
// we're only interested in parameters
if ( pSymInfo->Flags & IMAGEHLP_SYMBOL_INFO_PARAMETER )
// address, this is not a real error
if ( ::GetLastError() != ERROR_INVALID_ADDRESS )
{
- wxDbgHelpDLL::LogError(_T("SymSetContext"));
+ wxDbgHelpDLL::LogError(wxT("SymSetContext"));
}
return;
this // data to pass to it
) )
{
- wxDbgHelpDLL::LogError(_T("SymEnumSymbols"));
+ wxDbgHelpDLL::LogError(wxT("SymEnumSymbols"));
}
}
// wxStackWalker
// ----------------------------------------------------------------------------
-void wxStackWalker::WalkFrom(const CONTEXT *pCtx, size_t skip)
+void wxStackWalker::WalkFrom(const CONTEXT *pCtx, size_t skip, size_t maxDepth)
{
if ( !wxDbgHelpDLL::Init() )
{
- wxLogError(_("Failed to get stack backtrace:\n%s"),
+ // don't log a user-visible error message here because the stack trace
+ // is only needed for debugging/diagnostics anyhow and we shouldn't
+ // confuse the user by complaining that we couldn't generate it
+ wxLogDebug(wxT("Failed to get stack backtrace: %s"),
wxDbgHelpDLL::GetErrorMessage().c_str());
+ return;
}
// according to MSDN, the first parameter should be just a unique value and
TRUE // load symbols for all loaded modules
) )
{
- wxDbgHelpDLL::LogError(_T("SymInitialize"));
+ wxDbgHelpDLL::LogError(wxT("SymInitialize"));
return;
}
#endif // _M_IX86
// iterate over all stack frames
- for ( size_t nLevel = 0; ; nLevel++ )
+ for ( size_t nLevel = 0; nLevel < maxDepth; nLevel++ )
{
// get the next stack frame
if ( !wxDbgHelpDLL::StackWalk
) )
{
if ( ::GetLastError() )
- wxDbgHelpDLL::LogError(_T("StackWalk"));
+ wxDbgHelpDLL::LogError(wxT("StackWalk"));
break;
}
if ( nLevel >= skip )
{
wxStackFrame frame(nLevel - skip,
- (void *)sf.AddrPC.Offset,
+ wxUIntToPtr(sf.AddrPC.Offset),
sf.AddrFrame.Offset);
OnStackFrame(frame);
}
}
- // this results in crashes inside ntdll.dll when called from
- // exception handler ...
-#if 0
if ( !wxDbgHelpDLL::SymCleanup(hProcess) )
{
- wxDbgHelpDLL::LogError(_T("SymCleanup"));
+ wxDbgHelpDLL::LogError(wxT("SymCleanup"));
}
-#endif
}
-void wxStackWalker::WalkFrom(const _EXCEPTION_POINTERS *ep, size_t skip)
+void wxStackWalker::WalkFrom(const _EXCEPTION_POINTERS *ep, size_t skip, size_t maxDepth)
{
- WalkFrom(ep->ContextRecord, skip);
+ WalkFrom(ep->ContextRecord, skip, maxDepth);
}
-void wxStackWalker::WalkFromException()
+#if wxUSE_ON_FATAL_EXCEPTION
+
+void wxStackWalker::WalkFromException(size_t maxDepth)
{
extern EXCEPTION_POINTERS *wxGlobalSEInformation;
wxCHECK_RET( wxGlobalSEInformation,
- _T("wxStackWalker::WalkFromException() can only be called from wxApp::OnFatalException()") );
+ wxT("wxStackWalker::WalkFromException() can only be called from wxApp::OnFatalException()") );
// don't skip any frames, the first one is where we crashed
- WalkFrom(wxGlobalSEInformation, 0);
+ WalkFrom(wxGlobalSEInformation, 0, maxDepth);
}
-void wxStackWalker::Walk(size_t skip)
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+void wxStackWalker::Walk(size_t skip, size_t WXUNUSED(maxDepth))
{
// to get a CONTEXT for the current location, simply force an exception and
// get EXCEPTION_POINTERS from it
//
// note:
- // 1. we additionally skip RaiseException() and WalkFromException() frames
+ // 1. we additionally skip RaiseException() and WalkFrom() frames
// 2. explicit cast to EXCEPTION_POINTERS is needed with VC7.1 even if it
// shouldn't have been according to the docs
__try
__except( WalkFrom((EXCEPTION_POINTERS *)GetExceptionInformation(),
skip + 2), EXCEPTION_CONTINUE_EXECUTION )
{
- // never executed because of WalkFromException() return value
+ // never executed because the above expression always evaluates to
+ // EXCEPTION_CONTINUE_EXECUTION
}
}
#else // !wxUSE_DBGHELP
-// TODO: implement stubs
+// ============================================================================
+// stubs
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxStackFrame
+// ----------------------------------------------------------------------------
+
+void wxStackFrame::OnGetName()
+{
+}
+
+void wxStackFrame::OnGetLocation()
+{
+}
+
+bool
+wxStackFrame::GetParam(size_t WXUNUSED(n),
+ wxString * WXUNUSED(type),
+ wxString * WXUNUSED(name),
+ wxString * WXUNUSED(value)) const
+{
+ return false;
+}
+
+void wxStackFrame::OnParam(_SYMBOL_INFO * WXUNUSED(pSymInfo))
+{
+}
+
+void wxStackFrame::OnGetParam()
+{
+}
+
+// ----------------------------------------------------------------------------
+// wxStackWalker
+// ----------------------------------------------------------------------------
+
+void
+wxStackWalker::WalkFrom(const CONTEXT * WXUNUSED(pCtx),
+ size_t WXUNUSED(skip),
+ size_t WXUNUSED(maxDepth))
+{
+}
+
+void
+wxStackWalker::WalkFrom(const _EXCEPTION_POINTERS * WXUNUSED(ep),
+ size_t WXUNUSED(skip),
+ size_t WXUNUSED(maxDepth))
+{
+}
+
+#if wxUSE_ON_FATAL_EXCEPTION
+void wxStackWalker::WalkFromException(size_t WXUNUSED(maxDepth))
+{
+}
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+void wxStackWalker::Walk(size_t WXUNUSED(skip), size_t WXUNUSED(maxDepth))
+{
+}
#endif // wxUSE_DBGHELP/!wxUSE_DBGHELP
projects / wxWidgets.git / blobdiff