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UserspaceEmulator: Reset malloc backtrace on mallocation reuse

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If a previously-freed malloc chunk is reused, forget any old backtraces
and save a new malloc backtrace.
This commit is contained in:
Andreas Kling 2020-07-16 20:55:41 +02:00
parent 5f0d24cab2
commit 27aa2e5841
1 changed files with 2 additions and 0 deletions
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2
DevTools/UserspaceEmulator/MallocTracer.cpp
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@ -45,6 +45,8 @@ void MallocTracer::target_did_malloc(Badge<SoftCPU>, FlatPtr address, size_t siz
ASSERT(existing_mallocation->freed);
existing_mallocation->size = size;
existing_mallocation->freed = false;
existing_mallocation->malloc_backtrace = Emulator::the().raw_backtrace();
existing_mallocation->free_backtrace.clear();
return;
}
m_mallocations.append({ address, size, false, Emulator::the().raw_backtrace(), Vector<FlatPtr>() });