[PATCH] D51451: [sanitizer] Revert D50940

[Kostya Kortchinsky via Phabricator via llvm-commits]

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

The previous version of the patch makes some code unable to distinguish
failure to map address 0 and error.
Revert to turn the bots back to green while figuring out a new approach.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D51451

Files:
  lib/asan/asan_linux.cc
  lib/asan/asan_premap_shadow.cc
  lib/hwasan/hwasan_dynamic_shadow.cc
  lib/sanitizer_common/sanitizer_allocator_primary64.h
  lib/sanitizer_common/sanitizer_mac_libcdep.cc
  lib/sanitizer_common/sanitizer_posix_libcdep.cc
  lib/scudo/scudo_allocator_secondary.h

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