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[sanitizers] Enable dfsan for aarch64
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Authored by zatrazz on Jul 30 2015, 7:43 AM.

Reviewers

Summary

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

zatrazz retitled this revision from to [sanitizers] Enable dfsan for aarch64.

zatrazz updated this object.

zatrazz added a subscriber: llvm-commits.

LGTM

This revision is now accepted and ready to land.Jul 30 2015, 11:23 AM

Path

Size

lib/

Transforms/

Instrumentation/

4 lines

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	bool IsX86_64 = TargetTriple.getArch() == llvm::Triple::x86_64;	bool IsX86_64 = TargetTriple.getArch() == llvm::Triple::x86_64;
	bool IsMIPS64 = TargetTriple.getArch() == llvm::Triple::mips64 \|\|	bool IsMIPS64 = TargetTriple.getArch() == llvm::Triple::mips64 \|\|
	TargetTriple.getArch() == llvm::Triple::mips64el;	TargetTriple.getArch() == llvm::Triple::mips64el;
		bool IsAArch64 = TargetTriple.getArch() == llvm::Triple::aarch64 \|\|
		TargetTriple.getArch() == llvm::Triple::aarch64_be;

	const DataLayout &DL = M.getDataLayout();	const DataLayout &DL = M.getDataLayout();

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	ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0x700000000000LL);	ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0x700000000000LL);
	else if (IsMIPS64)	else if (IsMIPS64)
	ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0xF000000000LL);	ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0xF000000000LL);
		else if (IsAArch64)
		ShadowPtrMask = ConstantInt::getSigned(IntptrTy, ~0x7800000000LL);
	else	else
	report_fatal_error("unsupported triple");	report_fatal_error("unsupported triple");

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