[PATCH] D51394: Add a thread-local ring buffer of heap allocations

[Kostya Serebryany via Phabricator via llvm-commits]

kcc created this revision.
kcc added a reviewer: eugenis.
Herald added subscribers: Sanitizers, delcypher, kubamracek.

We need this in order to properly report heap-use-after-free,
since we don't have a quarantine.

This is a first part of the code, more like a proof of concept.
But I'd like to commit at as is and proceed with refactoring,
adding a ThreadRegistry, and extending the functionality.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D51394

Files:
  lib/hwasan/hwasan_allocator.cc
  lib/hwasan/hwasan_allocator.h
  lib/hwasan/hwasan_flags.inc
  lib/hwasan/hwasan_report.cc
  lib/hwasan/hwasan_thread.cc
  lib/hwasan/hwasan_thread.h

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