[PATCH] D59033: [llvm-objcopy] Make .build-id linking atomic

[Jake Ehrlich via Phabricator via llvm-commits]

jakehehrlich created this revision.
jakehehrlich added reviewers: jhenderson, rupprecht, alexshap, grimar.
Herald added subscribers: llvm-commits, kristina, jfb, MaskRay, hiraditya, arichardson, emaste.
Herald added a reviewer: espindola.
Herald added a project: LLVM.

This change makes linking into .build-id atomic and safe to use. Some users under particular workflows are reporting that this races more than half the time under particular conditions.


Repository:
  rL LLVM

https://reviews.llvm.org/D59033

Files:
  llvm/include/llvm/Support/FileSystem.h
  llvm/lib/Support/Path.cpp
  llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp

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