[PATCH] D25781: AMDGPU: Emit runtime metadata as a note element in .note section

[Yaxun Liu via llvm-commits]

yaxunl created this revision.
yaxunl added reviewers: tony-tye, kzhuravl, tstellarAMD, arsenm, nhaustov.
yaxunl added a subscriber: llvm-commits.
Herald added subscribers: nhaehnle, wdng.

Currently runtime metadata is emitted as an ELF section with name .AMDGPU.runtime_metadata.

However there is a standard way to convey vendor specific information about how to run an ELF binary, which is called vendor-specific note element (http://www.netbsd.org/docs/kernel/elf-notes.html).

This patch lets AMDGPU backend emits runtime metadata as a note element in .note section.


https://reviews.llvm.org/D25781

Files:
  lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
  lib/Target/AMDGPU/AMDGPUAsmPrinter.h
  lib/Target/AMDGPU/AMDGPURuntimeMetadata.h
  lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp
  lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h
  test/CodeGen/AMDGPU/invalid-opencl-version-metadata1.ll
  test/CodeGen/AMDGPU/invalid-opencl-version-metadata2.ll
  test/CodeGen/AMDGPU/invalid-opencl-version-metadata3.ll
  test/CodeGen/AMDGPU/runtime-metadata.ll

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