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Enable dfsan for aarch64

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This patch enable DFSan memory transformation for aarch64 (39-bit VMA).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243684 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adhemerval Zanella 2015-07-30 20:49:35 +00:00
parent 93204d28b8
commit 044eeda22c
1 changed files with 4 additions and 0 deletions
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4
lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
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@ -420,6 +420,8 @@ bool DataFlowSanitizer::doInitialization(Module &M) {
bool IsX86_64 = TargetTriple.getArch() == llvm::Triple::x86_64;
bool IsMIPS64 = TargetTriple.getArch() == llvm::Triple::mips64 ||
TargetTriple.getArch() == llvm::Triple::mips64el;
bool IsAArch64 = TargetTriple.getArch() == llvm::Triple::aarch64 ||
TargetTriple.getArch() == llvm::Triple::aarch64_be;
const DataLayout &DL = M.getDataLayout();
@ -434,6 +436,8 @@ bool DataFlowSanitizer::doInitialization(Module &M) {
ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0x700000000000LL);
else if (IsMIPS64)
ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0xF000000000LL);
else if (IsAArch64)
ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0x7800000000LL);
else
report_fatal_error("unsupported triple");