[llvm-branch-commits] [TSan] Defer symbolization in AddStack and AddSleep to SymbolizeStackElems (PR #228795)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/228795

PR #151495 delayed symbolization for memory accesses, locations,
threads, and mutexes until OutputReport (after ThreadRegistryLock is
released), but missed ScopedReport::AddStack and ScopedReport::AddSleep.
As a result, ReportRace (via AddSleep) and ReportMutexMisuse,
ReportDeadlock, and ReportDestroyLocked (via AddStack) still invoked the
symbolizer while holding ThreadRegistryLock.

Store the unsymbolized stack traces and sleep stack ID in ReportDesc and
symbolize them in ScopedReport::SymbolizeStackElems().

Assisted-by: Gemini