[PATCH] D71019: [AArch64] Emit PAC/BTI .note.gnu.property flags

[Momchil Velikov via Phabricator via llvm-commits]

chill created this revision.
Herald added subscribers: llvm-commits, hiraditya, kristof.beyls.
Herald added a project: LLVM.

  This patch make LLVM emit the processor specific program property types
  defined in AArch64 ELF spec
  https://developer.arm.com/docs/ihi0056/f/elf-for-the-arm-64-bit-architecture-aarch64-abi-2019q2-documentation
     
  A file containing no functions gets both property flags.  Otherwise, a property
  is set iff all the functions in the file have the corresponding attribute.
     
  Patch by Daniel Kiss and Momchil Velikov.


https://reviews.llvm.org/D71019

Files:
  llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-0.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-1.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-2.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-3.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-4.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-5.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-6.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-7.ll

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