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//===- 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/IR/PassManager.h"
#include "llvm/Pass.h"
namespace llvm {
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;
};
// Insert MemorySanitizer instrumentation (detection of uninitialized reads)
FunctionPass *
createMemorySanitizerLegacyPassPass(MemorySanitizerOptions Options = {});
/// A function 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(Function &F, FunctionAnalysisManager &FAM);
void printPipeline(raw_ostream &OS,
function_ref<StringRef(StringRef)> MapClassName2PassName);
static bool isRequired() { return true; }
private:
MemorySanitizerOptions Options;
};
/// 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 ModuleMemorySanitizerPass : public PassInfoMixin<ModuleMemorySanitizerPass> {
ModuleMemorySanitizerPass(MemorySanitizerOptions Options) : Options(Options) {}
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
static bool isRequired() { return true; }
private:
MemorySanitizerOptions Options;
};
}
#endif /* LLVM_TRANSFORMS_INSTRUMENTATION_MEMORYSANITIZER_H */
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