[PATCH] D92366: [lld-macho] Flesh out STABS implementation

[Jez Ng via Phabricator via llvm-commits]

int3 created this revision.
int3 added reviewers: lld-macho, clayborg.
Herald added a project: LLVM.
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This addresses a lot of the comments in D89257: [lld-macho] Emit STABS symbols for debugging, and drop debug sections <https://reviews.llvm.org/D89257>. Ideally it'd have been
done in the same diff, but the commits in between make that difficult.

This diff implements:

- N_GSYM and N_STSYM, the STABS for global and static symbols
- Has the STABS reflect the section IDs of their referent symbols
- Ensures we don't fail when encountering absolute symbols or files with no debug info
- Sorts STABS symbols by file to minimize the number of N_OSO entries


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D92366

Files:
  lld/MachO/InputFiles.cpp
  lld/MachO/InputFiles.h
  lld/MachO/SyntheticSections.cpp
  lld/MachO/SyntheticSections.h
  lld/test/MachO/stabs.s

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