[PATCH] D40203: [asan] Use dynamic shadow on 32-bit Android, try 2.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis created this revision.
Herald added subscribers: hiraditya, mgorny, kubamracek, srhines.

This change reverts r318575 and change FindDynamicShadowStart() to
keep the memory range it found mapped PROT_NONE to make sure it is
not reused. We also skip MemoryRangeIsAvailable() check, because is
is (a) unnecessary, and (b) would fail anyway.


https://reviews.llvm.org/D40203

Files:
  compiler-rt/lib/asan/CMakeLists.txt
  compiler-rt/lib/asan/asan_init_version.h
  compiler-rt/lib/asan/asan_linux.cc
  compiler-rt/lib/asan/asan_mapping.h
  compiler-rt/lib/asan/asan_premap_shadow.cc
  compiler-rt/lib/asan/asan_premap_shadow.h
  compiler-rt/lib/asan/asan_shadow_setup.cc
  compiler-rt/lib/sanitizer_common/sanitizer_common.h
  compiler-rt/lib/sanitizer_common/sanitizer_fuchsia.cc
  compiler-rt/lib/sanitizer_common/sanitizer_linux.cc
  compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
  compiler-rt/lib/sanitizer_common/sanitizer_win.cc
  llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
  llvm/test/Instrumentation/AddressSanitizer/with-ifunc.ll

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