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diff --git a/include/llvm/CodeGen/ForwardControlFlowIntegrity.h b/include/llvm/CodeGen/ForwardControlFlowIntegrity.h
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--- a/include/llvm/CodeGen/ForwardControlFlowIntegrity.h
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-//===-- ForwardControlFlowIntegrity.h: Forward-Edge CFI ---------*- C++ -*-===//
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass instruments indirect calls with checks to ensure that these calls
-// pass through the appropriate jump-instruction table generated by
-// JumpInstrTables.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_FORWARDCONTROLFLOWINTEGRITY_H
-#define LLVM_CODEGEN_FORWARDCONTROLFLOWINTEGRITY_H
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/Pass.h"
-#include "llvm/Target/TargetOptions.h"
-#include <string>
-
-namespace llvm {
-
-class AnalysisUsage;
-class BasicBlock;
-class Constant;
-class Function;
-class Instruction;
-class Module;
-class Value;
-
-/// ForwardControlFlowIntegrity uses the information from JumpInstrTableInfo to
-/// prepend checks to indirect calls to make sure that these calls target valid
-/// locations.
-class ForwardControlFlowIntegrity : public ModulePass {
-public:
- static char ID;
-
- ForwardControlFlowIntegrity();
- ForwardControlFlowIntegrity(JumpTable::JumpTableType JTT,
- CFIntegrity CFIType,
- bool CFIEnforcing, std::string CFIFuncName);
- ~ForwardControlFlowIntegrity() override;
-
- /// Runs the CFI pass on a given module. This works best if the module in
- /// question is the result of link-time optimization (see lib/LTO).
- bool runOnModule(Module &M) override;
- const char *getPassName() const override {
- return "Forward Control-Flow Integrity";
- }
- void getAnalysisUsage(AnalysisUsage &AU) const override;
-
-private:
- typedef SmallVector<Instruction *, 64> CallSet;
-
- /// A structure that is used to keep track of constant table information.
- struct CFIConstants {
- Constant *StartValue;
- Constant *MaskValue;
- Constant *Size;
- };
-
- /// A map from function type to the base of the table for this type and a mask
- /// for the table
- typedef DenseMap<FunctionType *, CFIConstants> CFITables;
-
- CallSet IndirectCalls;
-
- /// The type of jumptable implementation.
- JumpTable::JumpTableType JTType;
-
- /// The type of CFI check to add before each indirect call.
- CFIntegrity CFIType;
-
- /// A value that controls whether or not CFI violations cause a halt.
- bool CFIEnforcing;
-
- /// The name of the function to call in case of a CFI violation when
- /// CFIEnforcing is false. There is a default function that ignores
- /// violations.
- std::string CFIFuncName;
-
- /// The alignment of each entry in the table, from JumpInstrTableInfo. The
- /// JumpInstrTableInfo class always makes this a power of two.
- uint64_t ByteAlignment;
-
- /// The base-2 logarithm of ByteAlignment, needed for some of the transforms
- /// (like CFIntegrity::Ror)
- unsigned LogByteAlignment;
-
- /// Adds checks to each indirect call site to make sure that it is calling a
- /// function in our jump table.
- void updateIndirectCalls(Module &M, CFITables &CFIT);
-
- /// Walks the instructions to find all the indirect calls.
- void getIndirectCalls(Module &M);
-
- /// Adds a function that handles violations in non-enforcing mode
- /// (!CFIEnforcing). The default warning function simply returns, since the
- /// exact details of how to handle CFI violations depend on the application.
- void addWarningFunction(Module &M);
-
- /// Rewrites a function pointer in a call/invoke instruction to force it into
- /// a table.
- void rewriteFunctionPointer(Module &M, Instruction *I, Value *FunPtr,
- Constant *JumpTableStart, Constant *JumpTableMask,
- Constant *JumpTableSize);
-
- /// Inserts a check and a call to a warning function at a given instruction
- /// that must be an indirect call.
- void insertWarning(Module &M, BasicBlock *Block, Instruction *I,
- Value *FunPtr);
-};
-
-ModulePass *
-createForwardControlFlowIntegrityPass(JumpTable::JumpTableType JTT,
- CFIntegrity CFIType,
- bool CFIEnforcing, StringRef CFIFuncName);
-}
-
-#endif // LLVM_CODEGEN_FORWARDCONTROLFLOWINTEGRITY_H