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| author | Timur Iskhodzhanov <timurrrr@google.com> | 2015-01-12 17:38:58 +0000 |
|---|---|---|
| committer | Timur Iskhodzhanov <timurrrr@google.com> | 2015-01-12 17:38:58 +0000 |
| commit | 00ede840845ee6243f244edb6aee6dba499a12bc (patch) | |
| tree | 88e6a9b511a1632597e3ba5edb502b45c4d00ed2 | |
| parent | e03bef7543a17b01ab6cc748b69c07e51a1051a4 (diff) | |
| download | bcm5719-llvm-00ede840845ee6243f244edb6aee6dba499a12bc.tar.gz bcm5719-llvm-00ede840845ee6243f244edb6aee6dba499a12bc.zip | |
[ASan] Move the shadow on Windows 32-bit from 0x20000000 to 0x40000000
llvm-svn: 225641
| -rw-r--r-- | compiler-rt/lib/asan/asan_mapping.h | 18 | ||||
| -rw-r--r-- | compiler-rt/test/asan/TestCases/Windows/shadow_mapping_failure.cc | 2 | ||||
| -rw-r--r-- | llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp | 4 |
3 files changed, 18 insertions, 6 deletions
diff --git a/compiler-rt/lib/asan/asan_mapping.h b/compiler-rt/lib/asan/asan_mapping.h index 2746754152b..94a1f834a09 100644 --- a/compiler-rt/lib/asan/asan_mapping.h +++ b/compiler-rt/lib/asan/asan_mapping.h @@ -79,6 +79,13 @@ // || `[0x48000000, 0x4bffffff]` || ShadowGap || // || `[0x40000000, 0x47ffffff]` || LowShadow || // || `[0x00000000, 0x3fffffff]` || LowMem || +// +// Default Windows/i386 mapping: +// || `[0x60000000, 0xffffffff]` || HighMem || +// || `[0x4c000000, 0x5fffffff]` || HighShadow || +// || `[0x48000000, 0x4bffffff]` || ShadowGap || +// || `[0x40000000, 0x47ffffff]` || LowShadow || +// || `[0x00000000, 0x3fffffff]` || LowMem || static const u64 kDefaultShadowScale = 3; static const u64 kDefaultShadowOffset32 = 1ULL << 29; // 0x20000000 @@ -91,6 +98,7 @@ static const u64 kMIPS64_ShadowOffset64 = 1ULL << 36; static const u64 kPPC64_ShadowOffset64 = 1ULL << 41; static const u64 kFreeBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000 static const u64 kFreeBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000 +static const u64 kWindowsShadowOffset32 = 1ULL << 30; // 0x40000000 #define SHADOW_SCALE kDefaultShadowScale #if SANITIZER_ANDROID @@ -101,12 +109,12 @@ static const u64 kFreeBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000 # define SHADOW_OFFSET kMIPS32_ShadowOffset32 # elif SANITIZER_FREEBSD # define SHADOW_OFFSET kFreeBSD_ShadowOffset32 +# elif SANITIZER_IOS +# define SHADOW_OFFSET kIosShadowOffset32 +# elif SANITIZER_WINDOWS +# define SHADOW_OFFSET kWindowsShadowOffset32 # else -# if SANITIZER_IOS -# define SHADOW_OFFSET kIosShadowOffset32 -# else -# define SHADOW_OFFSET kDefaultShadowOffset32 -# endif +# define SHADOW_OFFSET kDefaultShadowOffset32 # endif # else # if defined(__aarch64__) diff --git a/compiler-rt/test/asan/TestCases/Windows/shadow_mapping_failure.cc b/compiler-rt/test/asan/TestCases/Windows/shadow_mapping_failure.cc index 08cf5f658c7..8858b8099f0 100644 --- a/compiler-rt/test/asan/TestCases/Windows/shadow_mapping_failure.cc +++ b/compiler-rt/test/asan/TestCases/Windows/shadow_mapping_failure.cc @@ -3,7 +3,7 @@ #include <stdio.h> -char bigchunk[1 << 29]; +char bigchunk[1 << 30]; int main() { printf("Hello, world!\n"); diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp index 57665cb9676..745c85a98e2 100644 --- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp +++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp @@ -67,6 +67,7 @@ static const uint64_t kMIPS32_ShadowOffset32 = 0x0aaa0000; static const uint64_t kMIPS64_ShadowOffset64 = 1ULL << 36; static const uint64_t kFreeBSD_ShadowOffset32 = 1ULL << 30; static const uint64_t kFreeBSD_ShadowOffset64 = 1ULL << 46; +static const uint64_t kWindowsShadowOffset32 = 1ULL << 30; static const size_t kMinStackMallocSize = 1 << 6; // 64B static const size_t kMaxStackMallocSize = 1 << 16; // 64K @@ -307,6 +308,7 @@ static ShadowMapping getShadowMapping(Triple &TargetTriple, int LongSize) { TargetTriple.getArch() == llvm::Triple::mipsel; bool IsMIPS64 = TargetTriple.getArch() == llvm::Triple::mips64 || TargetTriple.getArch() == llvm::Triple::mips64el; + bool IsWindows = TargetTriple.isOSWindows(); ShadowMapping Mapping; @@ -319,6 +321,8 @@ static ShadowMapping getShadowMapping(Triple &TargetTriple, int LongSize) { Mapping.Offset = kFreeBSD_ShadowOffset32; else if (IsIOS) Mapping.Offset = kIOSShadowOffset32; + else if (IsWindows) + Mapping.Offset = kWindowsShadowOffset32; else Mapping.Offset = kDefaultShadowOffset32; } else { // LongSize == 64 |
