[all-commits] [llvm/llvm-project] 203757: [llvm-ar] Use COFF archive format for COFF targets...

[Jacek Caban via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 203757776826cfd164c537048ec90f5ada50cae2
      https://github.com/llvm/llvm-project/commit/203757776826cfd164c537048ec90f5ada50cae2
  Author: Jacek Caban <jacek at codeweavers.com>
  Date:   2024-03-13 (Wed, 13 Mar 2024)

  Changed paths:
    M llvm/docs/CommandGuide/llvm-ar.rst
    M llvm/docs/ReleaseNotes.rst
    M llvm/include/llvm/Object/Archive.h
    M llvm/lib/Object/Archive.cpp
    M llvm/lib/Object/ArchiveWriter.cpp
    A llvm/test/tools/llvm-ar/coff-symtab.test
    A llvm/test/tools/llvm-ar/no-symtab.yaml
    M llvm/tools/llvm-ar/llvm-ar.cpp

  Log Message:
  -----------
  [llvm-ar] Use COFF archive format for COFF targets. (#82898)

Detect COFF files by default and allow specifying it with --format
argument.

This is important for ARM64EC, which uses a separated symbol map for EC
symbols. Since K_COFF is mostly compatible with K_GNU, this shouldn't
really make a difference for other targets.

This originally landed as #82642, but was reverted due to test failures
in tests using no symbol table. Since COFF symbol can't express it,
fallback to GNU format in that case.



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