[all-commits] [llvm/llvm-project] cd40bd: hwasan: Move .note.hwasan.globals note to hwasan.m...

[pcc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: cd40bd0a32e29fb62c89b120adbc89a847443da3
      https://github.com/llvm/llvm-project/commit/cd40bd0a32e29fb62c89b120adbc89a847443da3
  Author: Peter Collingbourne <peter at pcc.me.uk>
  Date:   2020-01-17 (Fri, 17 Jan 2020)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
    M llvm/test/Instrumentation/HWAddressSanitizer/globals.ll

  Log Message:
  -----------
  hwasan: Move .note.hwasan.globals note to hwasan.module_ctor comdat.

As of D70146 lld GCs comdats as a group and no longer considers notes in
comdats to be GC roots, so we need to move the note to a comdat with a GC root
section (.init_array) in order to prevent lld from discarding the note.

Differential Revision: https://reviews.llvm.org/D72936