[PATCH] D76252: [lld] Add basic support for linking against dylibs

[Jez Ng via Phabricator via llvm-commits]

int3 created this revision.
Herald added subscribers: llvm-commits, mgorny.
Herald added a project: LLVM.
int3 added reviewers: pete, lgerbarg, ruiu, pcc, MaskRay, mtrent, kledzik, smeenai, respindola, bbaren, alexshap, jhenderson, christylee.
Herald added a subscriber: ormris.

This diff implements:

- dylib + univeral binary loading (which allows us to load libSystem.B)
- The GOT_LOAD relocation, which allows us to load non-lazy dylib symbols
- Basic bind opcode emission, which tells `dyld` how to populate the GOT

Depends on D75382 <https://reviews.llvm.org/D75382>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76252

Files:
  lld/MachO/Arch/X86_64.cpp
  lld/MachO/CMakeLists.txt
  lld/MachO/Config.h
  lld/MachO/Driver.cpp
  lld/MachO/InputFiles.cpp
  lld/MachO/InputFiles.h
  lld/MachO/InputSection.cpp
  lld/MachO/InputSection.h
  lld/MachO/Options.td
  lld/MachO/OutputSegment.h
  lld/MachO/SymbolTable.cpp
  lld/MachO/SymbolTable.h
  lld/MachO/Symbols.h
  lld/MachO/SyntheticSections.cpp
  lld/MachO/SyntheticSections.h
  lld/MachO/Target.h
  lld/MachO/Writer.cpp
  lld/MachO/Writer.h
  lld/test/MachO/Inputs/goodbye-dylib.yaml
  lld/test/MachO/Inputs/hello-dylib.yaml
  lld/test/MachO/dylink.s
  lld/test/MachO/missing-dylib.s

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