[PATCH] D87780: [lld-macho] Export trie addresses should be relative to the image base

[Jez Ng via Phabricator via llvm-commits]

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We didn't notice this earlier this we were only testing the export trie
encoded in a dylib, whose image base starts at zero. But a regular
executable contains `__PAGEZERO`, which means it has a non-zero image
base. This bug was discovered after attempting to run some programs that
performed `dlopen` on an executable.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87780

Files:
  lld/MachO/ExportTrie.cpp
  lld/MachO/ExportTrie.h
  lld/MachO/SyntheticSections.cpp
  lld/test/MachO/export-trie.s

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