[PATCH] D86573: [lld-macho] Implement weak binding for branch relocations

[Jez Ng via Phabricator via llvm-commits]

int3 created this revision.
int3 added a reviewer: lld-macho.
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Since there is no "weak lazy" lookup, function calls to weak symbols are
always non-lazily bound. We emit both regular non-lazy bindings as well
as weak bindings, in order that the weak bindings may overwrite the
non-lazy bindings if an appropriate symbol is found at runtime. However,
the bound addresses will still be written (non-lazily) into the
LazyPointerSection.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86573

Files:
  lld/MachO/Arch/X86_64.cpp
  lld/MachO/Symbols.h
  lld/MachO/SyntheticSections.cpp
  lld/MachO/SyntheticSections.h
  lld/MachO/Target.h
  lld/MachO/Writer.cpp
  lld/test/MachO/weak-binding.s
  lld/test/MachO/weak-definition-order.s

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