[PATCH] D29657: [safestack] Add runtime support for MPX-based hardening

[Michael LeMay via Phabricator via llvm-commits]

mlemay-intel created this revision.
Herald added a subscriber: mgorny.

This patch adds support for the separate stack segment feature on 64-bit
platforms with Intel MPX support. It initializes MPX and allocates safe stacks
at high addresses so that BNDCU instructions inserted by the compiler can block
stray writes to safe stacks.


https://reviews.llvm.org/D29657

Files:
  lib/safestack/CMakeLists.txt
  lib/safestack/safestack.cc
  lib/safestack/safestackmpx.cc

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