| //===--------- Definition of the AddressSanitizer class ---------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares common infrastructure for AddressSanitizer and |
| // HWAddressSanitizer. |
| // |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H |
| #define LLVM_TRANSFORMS_INSTRUMENTATION_ADDRESSSANITIZERCOMMON_H |
| |
| #include "llvm/Analysis/CFG.h" |
| #include "llvm/Analysis/PostDominators.h" |
| #include "llvm/IR/Dominators.h" |
| #include "llvm/IR/Instruction.h" |
| #include "llvm/IR/IntrinsicInst.h" |
| #include "llvm/IR/Module.h" |
| |
| namespace llvm { |
| |
| class InterestingMemoryOperand { |
| public: |
| Use *PtrUse; |
| bool IsWrite; |
| Type *OpType; |
| TypeSize TypeStoreSize = TypeSize::Fixed(0); |
| MaybeAlign Alignment; |
| // The mask Value, if we're looking at a masked load/store. |
| Value *MaybeMask; |
| // The EVL Value, if we're looking at a vp intrinsic. |
| Value *MaybeEVL; |
| // The Stride Value, if we're looking at a strided load/store. |
| Value *MaybeStride; |
| |
| InterestingMemoryOperand(Instruction *I, unsigned OperandNo, bool IsWrite, |
| class Type *OpType, MaybeAlign Alignment, |
| Value *MaybeMask = nullptr, |
| Value *MaybeEVL = nullptr, |
| Value *MaybeStride = nullptr) |
| : IsWrite(IsWrite), OpType(OpType), Alignment(Alignment), |
| MaybeMask(MaybeMask), MaybeEVL(MaybeEVL), MaybeStride(MaybeStride) { |
| const DataLayout &DL = I->getModule()->getDataLayout(); |
| TypeStoreSize = DL.getTypeStoreSizeInBits(OpType); |
| PtrUse = &I->getOperandUse(OperandNo); |
| } |
| |
| Instruction *getInsn() { return cast<Instruction>(PtrUse->getUser()); } |
| |
| Value *getPtr() { return PtrUse->get(); } |
| }; |
| |
| // Get AddressSanitizer parameters. |
| void getAddressSanitizerParams(const Triple &TargetTriple, int LongSize, |
| bool IsKasan, uint64_t *ShadowBase, |
| int *MappingScale, bool *OrShadowOffset); |
| |
| } // namespace llvm |
| |
| #endif |