C++ On Sea 2024 Preview - Aleksei Veselovskii - LSAN and ASAN: tips, tricks and hacks
summary
Explains LSAN internals including the combined memory manager, interceptors and a garbage collector that deliberately does not collect garbage; demonstrates why LSAN refuses to work under gdb and how ASAN/LSAN expose a public interface for programmatic checks. Shows concrete ways to profile memory with ASAN/LSAN, extract object metadata and memory manager statistics, and use gdb-callable helpers. Presents a hack that uses the non public LSAN API to improve leak diagnostics and examples of results.
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