[all-commits] [llvm/llvm-project] a3d95a: [lld-macho] Add basic symbol table output

[Jez Ng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a3d95a50ee3397c89327fce6983624446cd8e9d7
      https://github.com/llvm/llvm-project/commit/a3d95a50ee3397c89327fce6983624446cd8e9d7
  Author: Jez Ng <jezng at fb.com>
  Date:   2020-04-27 (Mon, 27 Apr 2020)

  Changed paths:
    M lld/MachO/SyntheticSections.cpp
    M lld/MachO/SyntheticSections.h
    M lld/MachO/Writer.cpp
    A lld/test/MachO/symtab.s

  Log Message:
  -----------
  [lld-macho] Add basic symbol table output

This diff implements basic support for writing a symbol table.

- Attributes are loosely supported for extern symbols and not at all for
  other types

Immediate future work will involve implementing section merging.

Initial version by Kellie Medlin <kelliem at fb.com>

Differential Revision: https://reviews.llvm.org/D76742


  Commit: 9598778bd1910e77ccd399f2c9e979c8ecf98e55
      https://github.com/llvm/llvm-project/commit/9598778bd1910e77ccd399f2c9e979c8ecf98e55
  Author: Jez Ng <jezng at fb.com>
  Date:   2020-04-27 (Mon, 27 Apr 2020)

  Changed paths:
    M lld/MachO/Config.h
    M lld/MachO/Driver.cpp
    M lld/MachO/Options.td
    M lld/MachO/SyntheticSections.cpp
    M lld/MachO/SyntheticSections.h
    M lld/MachO/Writer.cpp
    R lld/test/MachO/Inputs/goodbye-dylib.yaml
    R lld/test/MachO/Inputs/hello-dylib.yaml
    A lld/test/MachO/Inputs/libgoodbye.s
    A lld/test/MachO/Inputs/libhello.s
    A lld/test/MachO/dylib.s
    M lld/test/MachO/dylink.s
    M lld/test/MachO/load-commands.s
    M lld/test/MachO/symtab.s

  Log Message:
  -----------
  [lld-macho] Add support for emitting dylibs with a single symbol

Summary:
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.

Differential Revision: https://reviews.llvm.org/D76908


Compare: https://github.com/llvm/llvm-project/compare/e4872d7f08a1...9598778bd191