llvm-project.git/lldb/test/API/macosx/arm-pointer-metadata-stripping/Makefile, branch users/mingmingl-llvm/samplefdo-profile-format Unnamed repository; edit this file 'description' to name the repository. [lldb] Call FixUpPointer in WritePointerToMemory (try 2) (#153585) 2025-09-04T20:05:10+00:00 Felipe de Azevedo Piovezan fpiovezan@apple.com 2025-09-04T20:05:10+00:00 f88eadda357b0429b390ec0bcf64c361ad1a8f28 In architectures where pointers may contain metadata, such as arm64e, the metadata may need to be cleaned prior to sending this pointer to be used in expression evaluation generated code. This patch is a step towards allowing consumers of pointers to decide whether they want to keep or remove metadata, as opposed to discarding metadata at the moment pointers are created. See #150537. This was tested running the LLDB test suite on arm64e. (The first attempt at this patch caused a failure in TestScriptedProcessEmptyMemoryRegion.py. This test exercises a case where IRMemoryMap uses host memory in its allocations; pointers to such allocations should not be fixed, which is what the original patch failed to account for). 
In architectures where pointers may contain metadata, such as arm64e,
the metadata may need to be cleaned prior to sending this pointer to be
used in expression evaluation generated code.

This patch is a step towards allowing consumers of pointers to decide
whether they want to keep or remove metadata, as opposed to discarding
metadata at the moment pointers are created. See #150537.

This was tested running the LLDB test suite on arm64e.

(The first attempt at this patch caused a failure in
TestScriptedProcessEmptyMemoryRegion.py. This test exercises a case
where IRMemoryMap uses host memory in its allocations; pointers to such
allocations should not be fixed, which is what the original patch failed
to account for).