[PATCH] [ASan] Initial support for Kernel AddressSanitizer

[Alexander Potapenko]

Updated the test to use __attribute__((no_sanitize("kernel-address"))) as a workaround. We'll still need to decide which of the three attributes:

- __attribute__((no_sanitize_address))
- __attribute__((no_sanitize("address")))
- __attribute__((no_sanitize("kernel-address")))

shall affect KASan instrumentation.


http://reviews.llvm.org/D10411

Files:
  include/llvm/Transforms/Instrumentation.h
  lib/Transforms/Instrumentation/AddressSanitizer.cpp
  tools/clang/include/clang/Basic/Sanitizers.def
  tools/clang/include/clang/Basic/Sanitizers.h
  tools/clang/lib/AST/Decl.cpp
  tools/clang/lib/Basic/Sanitizers.cpp
  tools/clang/lib/CodeGen/BackendUtil.cpp
  tools/clang/lib/CodeGen/CGDeclCXX.cpp
  tools/clang/lib/CodeGen/CodeGenFunction.cpp
  tools/clang/lib/CodeGen/CodeGenModule.cpp
  tools/clang/lib/CodeGen/SanitizerMetadata.cpp
  tools/clang/lib/Driver/SanitizerArgs.cpp
  tools/clang/lib/Lex/PPMacroExpansion.cpp
  tools/clang/test/CodeGen/address-safety-attr-kasan.cpp
  tools/clang/test/Driver/asan.c
  tools/clang/test/Driver/fsanitize.c
  tools/clang/test/Lexer/has_feature_address_sanitizer.cpp

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