[PATCH] D47145: [X86][ELF][CET] Adding the .note.gnu.property ELF section in X86

Mon May 21 08:44:02 PDT 2018

mike.dvoretsky created this revision.
mike.dvoretsky added a reviewer: craig.topper.
Herald added subscribers: llvm-commits, hiraditya.

In preparation for the proposed linker ABI changes (https://github.com/hjl-tools/linux-abi/wiki/linux-abi-draft.pdf, https://github.com/hjl-tools/x86-psABI/wiki/x86-64-psABI-cet.pdf), this patch enables emission of the .note.gnu.property section to ELF object files when building CET-enabled modules. Also added code to llvm-readobj to parse GNU_PROPERTY_X86_FEATURE_1_AND notes.

Repository:
  rL LLVM

https://reviews.llvm.org/D47145

Files:
  llvm/include/llvm/BinaryFormat/ELF.h
  llvm/lib/Target/X86/X86AsmPrinter.cpp
  llvm/test/tools/llvm-readobj/note-gnu-property.s
  llvm/tools/llvm-readobj/ELFDumper.cpp

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