Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===- Transforms/Instrumentation/MemorySanitizer.h - MSan Pass -----------===//

//

// 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 defines the memoy sanitizer pass.

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H

#define LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H

#include "llvm/ADT/STLFunctionalExtras.h"

#include "llvm/IR/PassManager.h"

namespace llvm {

class Module;

class StringRef;

class raw_ostream;

struct MemorySanitizerOptions {

  MemorySanitizerOptions() : MemorySanitizerOptions(0, false, false, false){};

  MemorySanitizerOptions(int TrackOrigins, bool Recover, bool Kernel)

      : MemorySanitizerOptions(TrackOrigins, Recover, Kernel, false) {}

  MemorySanitizerOptions(int TrackOrigins, bool Recover, bool Kernel,

                         bool EagerChecks);

  bool Kernel;

  int TrackOrigins;

  bool Recover;

  bool EagerChecks;

};

/// A module pass for msan instrumentation.

///

/// Instruments functions to detect unitialized reads. This function pass

/// inserts calls to runtime library functions. If the functions aren't declared

/// yet, the pass inserts the declarations. Otherwise the existing globals are

/// used.

struct MemorySanitizerPass : public PassInfoMixin<MemorySanitizerPass> {

  MemorySanitizerPass(MemorySanitizerOptions Options) : Options(Options) {}

  PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);

  void printPipeline(raw_ostream &OS,

                     function_ref<StringRef(StringRef)> MapClassName2PassName);

  static bool isRequired() { return true; }

private:

  MemorySanitizerOptions Options;

};

}

#endif /* LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H */