Exclude ASAN DSO address ranges in QEMU AsanModule #3180
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Description
As mentioned in #3175 (comment), the
AsanModuledoes not exclude the ASAN DSO address ranges from instrumentation, while theAsanGuestModuledoes. Excluding the ASAN DSO allows us to use load widening techniques inside the ASAN DSO to recover some performance from the overhead of intercepting all calls.Checklist
./scripts/precommit.shand addressed all comments