[PATCH] D50581: [hwasan] Allow optional early shadow setup.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis created this revision.
eugenis added reviewers: vitalybuka, kcc.
Herald added a subscriber: kubamracek.

Provide __hwasan_shadow_init that can be used to initialize shadow w/o touching libc.
It can be used to bootstrap an unusual case of fully-static executable with
hwasan-instrumented libc, which needs to run hwasan code before it is ready to serve
user calls like madvise().


https://reviews.llvm.org/D50581

Files:
  compiler-rt/include/sanitizer/hwasan_interface.h
  compiler-rt/lib/hwasan/hwasan.cc
  compiler-rt/lib/hwasan/hwasan.h
  compiler-rt/lib/hwasan/hwasan_interface_internal.h
  compiler-rt/lib/hwasan/hwasan_linux.cc

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