[PATCH] D23363: [compiler-rt] Add support for the dynamic shadow allocation

[Etienne Bergeron via llvm-commits]

etienneb created this revision.
etienneb added reviewers: rnk, kcc.
etienneb added subscribers: chrisha, llvm-commits.
Herald added subscribers: dberris, kubabrecka.

This patch is adding the needed code to compiler-rt to support
dynamic shadow.

This is to support this patch:
  https://reviews.llvm.org/D23354

It's adding support for using a shadow placed at a dynamic address determined
at runtime.

The dynamic shadow is required to work on windows 64-bits.

https://reviews.llvm.org/D23363

Files:
  lib/asan/asan_allocator.h
  lib/asan/asan_interface_internal.h
  lib/asan/asan_mapping.h
  lib/asan/asan_rtl.cc
  lib/asan/asan_win_dll_thunk.cc
  lib/sanitizer_common/sanitizer_common.h
  lib/sanitizer_common/sanitizer_win.cc

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