[PATCH] D50940: [sanitizer] Change Mmap*NoAccess to return MMAP_FAILED (~(uptr)0) on error

[Kostya Kortchinsky via Phabricator via llvm-commits]

cryptoad updated this revision to Diff 161523.
cryptoad added a comment.

Updated proposal: make `Mmap*NoAccess` return `nullptr` on failure (like the
other Mmap functions).
Modify callers that were checking for `~(uptr)0` to now check for `nullptr`.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D50940

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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