[PATCH] D26199: [ELF] - Implemented --build-id=tree

[George Rimar via llvm-commits]

grimar created this revision.
grimar added reviewers: ruiu, rafael.
grimar added subscribers: llvm-commits, grimar, evgeny777, emaste.

--build-id=tree is a threaded way to computate build id.

If threads are used, --build-id=tree splits input data by chunks.
MD5 hash is calculated for each one and then SHA1 hash is
calculated for result sequence.
If threads are not used, --build-id=tree behaves as a regular sha1.

Idea based on gold patch implementation: https://sourceware.org/ml/binutils/2013-04/msg00134/t.patch


https://reviews.llvm.org/D26199

Files:
  ELF/Config.h
  ELF/Driver.cpp
  ELF/InputSection.cpp
  ELF/InputSection.h
  ELF/Writer.cpp
  test/ELF/build-id.s

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