[PATCH] D143540: [llvm-lib] Add support for writing COFF archives.

[Jacek Caban via Phabricator via llvm-commits]

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We currently just use GNU format for llvm-lib. This mostly works, but ARM64EC needs an additional section that does not really fit GNU format. This patch implements writing in COFF format (as in, it's what archive reader considers as K_COFF). This mostly requires symbol emitting symbol map. Note that, just like in case of MSVC, symbols are de-duplicated in both usual symbol table and the new symbol map.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D143540

Files:
  llvm/lib/Object/ArchiveWriter.cpp
  llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
  llvm/test/tools/llvm-lib/duplicate.test

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