[asan] adding ShadowOffset64 for mips64, patch by Kumar Sukhani

llvm-svn: 221725

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index c3bc1e8ba83..779ef66069e 100644
--- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -61,6 +61,7 @@ static const uint64_t kDefaultShadowOffset64 = 1ULL << 44;
 static const uint64_t kSmallX86_64ShadowOffset = 0x7FFF8000;  // < 2G.
 static const uint64_t kPPC64_ShadowOffset64 = 1ULL << 41;
 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;
 
@@ -298,6 +299,8 @@ static ShadowMapping getShadowMapping(const Module &M, int LongSize) {
   bool IsX86_64 = TargetTriple.getArch() == llvm::Triple::x86_64;
   bool IsMIPS32 = TargetTriple.getArch() == llvm::Triple::mips ||
                   TargetTriple.getArch() == llvm::Triple::mipsel;
+  bool IsMIPS64 = TargetTriple.getArch() == llvm::Triple::mips64 ||
+                  TargetTriple.getArch() == llvm::Triple::mips64el;
 
   ShadowMapping Mapping;
 
@@ -319,6 +322,8 @@ static ShadowMapping getShadowMapping(const Module &M, int LongSize) {
       Mapping.Offset = kFreeBSD_ShadowOffset64;
     else if (IsLinux && IsX86_64)
       Mapping.Offset = kSmallX86_64ShadowOffset;
+    else if (IsMIPS64)
+      Mapping.Offset = kMIPS64_ShadowOffset64;
     else
       Mapping.Offset = kDefaultShadowOffset64;
   }