[PATCH] D76908: [lld-macho] Add support for emitting dylibs with a single symbol

[Jez Ng via Phabricator via llvm-commits]

int3 created this revision.
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int3 added reviewers: ruiu, pcc, MaskRay, alexshap, christylee, smeenai, gkm.

Add logic for emitting the correct set of load commands and segments when `-dylib` is passed.

I haven't gotten to implementing a real export trie yet, so we can only emit a single symbol, but it's enough to replace the YAML test files introduced in D76252 <https://reviews.llvm.org/D76252>.

I had to add some code to emit a basic symbol table so as to be able to link against those dylibs, but testing + the rest of the implementation will come from D76742 <https://reviews.llvm.org/D76742>.

Depends on D76839 <https://reviews.llvm.org/D76839>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76908

Files:
  lld/MachO/Config.h
  lld/MachO/Driver.cpp
  lld/MachO/Options.td
  lld/MachO/SyntheticSections.cpp
  lld/MachO/SyntheticSections.h
  lld/MachO/Writer.cpp
  lld/test/MachO/Inputs/goodbye-dylib.yaml
  lld/test/MachO/Inputs/hello-dylib.yaml
  lld/test/MachO/Inputs/libgoodbye.s
  lld/test/MachO/Inputs/libhello.s
  lld/test/MachO/dylib.s
  lld/test/MachO/dylink.s
  lld/test/MachO/load-commands.s

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