[llvm-dev] ORC JIT Weekly #9 - JITEventListener support fixes

[Lang Hames via llvm-dev]

Hi All,

This week was mostly spent tracking down TSan and ASan issues exposed by
testing of OrcV2 JITEventListener support. Those issues have been fixed in
eb918d8daf1 (fixes the locking scheme in MachOPlatform), 54aec178dac (fixes
the locking scheme in GenericLLVMIRPlatformSupport), and 39253a50f0f (fixes
object buffer ownership in RTDyldObjectLinkingLayer).

With those issues sorted out, JITEventListener support in OrcV2 was
re-enabled in 39253a50f0f. If you want to see how JITEventListers can be
enabled for an LLJIT instance, check out the new example in
llvm/examples/OrcV2Examples/LLJITWithGDBRegistrationListener.

-- Lang.
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