| 1 | //===-- CFGuard.h - CFGuard Transformations ---------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===---------------------------------------------------------------------===// |
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| 8 | // Windows Control Flow Guard passes (/guard:cf). |
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| 9 | //===---------------------------------------------------------------------===// |
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| 10 | |
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| 11 | #ifndef LLVM_TRANSFORMS_CFGUARD_H |
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| 12 | #define LLVM_TRANSFORMS_CFGUARD_H |
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| 13 | |
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| 14 | #include "llvm/IR/PassManager.h" |
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| 15 | |
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| 16 | namespace llvm { |
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| 17 | |
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| 18 | class FunctionPass; |
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| 19 | |
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| 20 | class CFGuardPass : public PassInfoMixin<CFGuardPass> { |
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| 21 | public: |
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| 22 | enum class Mechanism { Check, Dispatch }; |
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| 23 | |
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| 24 | CFGuardPass(Mechanism M = Mechanism::Check) : GuardMechanism(M) {} |
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| 25 | PreservedAnalyses run(Function &F, FunctionAnalysisManager &FAM); |
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| 26 | |
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| 27 | private: |
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| 28 | Mechanism GuardMechanism; |
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| 29 | }; |
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| 30 | |
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| 31 | /// Insert Control FLow Guard checks on indirect function calls. |
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| 32 | FunctionPass *createCFGuardCheckPass(); |
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| 33 | |
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| 34 | /// Insert Control FLow Guard dispatches on indirect function calls. |
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| 35 | FunctionPass *createCFGuardDispatchPass(); |
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| 36 | |
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| 37 | } // namespace llvm |
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| 38 | |
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| 39 | #endif |
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| 40 | |
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