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Monthly Archives: November 2010
Debugging Memory Leaks, part 3.5: Hacks with Hooks
Alan rightfully comments that setting a conditional breakpoint at _heap_alloc_dbg significantly slows down the application. If run time is an issue for you even in debug builds and re-compilation is not an issue, here’s an alternative trick: use an allocation … Continue reading
Debugging Memory Leaks, Part 3: Breaking on Allocations of Given Size
When battling memory leaks, you often start from the output of _CrtMemDumpAllObjectsSince or _CrtDumpMemoryLeaks (called for you if you use MFC) – something similar to: C:\myfile.cpp(20): {130} normal block at 0x00780E80, 68 bytes long. Data: < > CD CD CD … Continue reading
Posted in Debugging, VC++
3 Comments
Checking Memory Corruption with _CrtCheckMemory – From the Debugger
Edit: In VS2015+ versions this trick is still useful but is a bit different.
Posted in Debugging, VC++, Visual Studio
2 Comments
/d1reportAllClassLayout – Dumping Object Memory Layout
Roman just posted a nice investigation he did, mostly using the g++ switch -fdump-class-hierarchy – which dumps to stdout a graphical representation of generated classes layout. VC++ has no official similar switch, but deep inside its undocumented pile of goodies … Continue reading
Posted in Debugging, VC++
3 Comments