[all-commits] [llvm/llvm-project] bba38d: [compile-rt] Reduce #ifdef noise for ptrauth

[Julian Lettner via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: bba38de50c9d0154be28047e6eec7e914290bb9e
      https://github.com/llvm/llvm-project/commit/bba38de50c9d0154be28047e6eec7e914290bb9e
  Author: Julian Lettner <julian.lettner at apple.com>
  Date:   2020-05-11 (Mon, 11 May 2020)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/CMakeLists.txt
    M compiler-rt/lib/sanitizer_common/sanitizer_mac.cpp
    A compiler-rt/lib/sanitizer_common/sanitizer_ptrauth.h
    M compiler-rt/lib/tsan/rtl/tsan_platform_mac.cpp
    M compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cpp

  Log Message:
  -----------
  [compile-rt] Reduce #ifdef noise for ptrauth

Create a sanitizer_ptrauth.h header that #includes <ptrauth> when
available and defines just the required macros as "no ops" otherwise.
This should avoid the need for excessive #ifdef'ing.

Follow-up to and discussed in: https://reviews.llvm.org/D79132

Reviewed By: delcypher

Differential Revision: https://reviews.llvm.org/D79540