[RemoteMirrors] Add hook for resolving indirect addresses #85091
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Adds a hook so implementations of memory reader can add logic to resolving remote addresses. This is needed because of an interaction between LLDB, which tries to read memory from files instead of process memory whenever possible and the DYLD shared cache. The shared cache will merge pointers in the GOT sections from multiple images into one location, and update the relative offsets to point to the new location. LLDB, will have initially read the offset pointing to the "old" location, which will be zeroed out in live memory. This gives LLDB the opportunity to re-read the relative offset, but from live memory, so it can return the right pointer in the shared cache. rdar://160837587
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mikeash
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Oct 23, 2025
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Adds a hook so implementations of memory reader can add logic to resolving remote addresses. This is needed because of an interaction between LLDB, which tries to read memory from files instead of process memory whenever possible and the DYLD shared cache.
The shared cache will merge pointers in the GOT sections from multiple images into one location, and update the relative offsets to point to the new location.
LLDB, will have initially read the offset pointing to the "old" location, which will be zeroed out in live memory. This gives LLDB the opportunity to re-read the relative offset, but from live memory, so it can return the right pointer in the shared cache.
rdar://160837587