UnsafeBufferUsageAnalysis.h

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//===- UnsafeBufferUsageAnalysis.h ------------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// Defines:
// - UnsafeBufferUsageAnalysisResult
//     - the whole-program analysis result
//       type for UnsafeBufferUsageAnalysis. It collects unsafe buffer usages
//       throughout the whole program.
//
// - UnsafeBufferReachableAnalysisResult
//     - the whole-program analysis result
//       type for UnsafeBufferReachableAnalysis. It propagates unsafe buffer
//       usages through the pointer flow graph, starting from the initial set
//       collected by UnsafeBufferUsageAnalysis.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_SCALABLESTATICANALYSISFRAMEWORK_ANALYSES_UNSAFEBUFFERUSAGE_UNSAFEBUFFERUSAGEANALYSIS_H
#define LLVM_CLANG_SCALABLESTATICANALYSISFRAMEWORK_ANALYSES_UNSAFEBUFFERUSAGE_UNSAFEBUFFERUSAGEANALYSIS_H
 
#include "clang/ScalableStaticAnalysisFramework/Analyses/EntityPointerLevel/EntityPointerLevel.h"
#include "clang/ScalableStaticAnalysisFramework/Core/Model/EntityId.h"
#include "clang/ScalableStaticAnalysisFramework/Core/WholeProgramAnalysis/AnalysisName.h"
#include "clang/ScalableStaticAnalysisFramework/Core/WholeProgramAnalysis/AnalysisResult.h"
#include "llvm/ADT/StringRef.h"
#include <map>
 
namespace clang::ssaf {
 
constexpr llvm::StringLiteral UnsafeBufferUsageAnalysisResultName =
    "UnsafeBufferUsageAnalysisResult";
constexpr llvm::StringLiteral UnsafeBufferReachableAnalysisResultName =
    "UnsafeBufferReachableAnalysisResult";
 
struct UnsafeBufferUsageAnalysisResult final : AnalysisResult {
  static AnalysisName analysisName() {
    return AnalysisName(UnsafeBufferUsageAnalysisResultName.str());
  }
 
  /// Whole-program set of unsafe buffer pointers:
  std::map<EntityId, EntityPointerLevelSet> UnsafeBuffers;
 
  auto begin() const { return UnsafeBuffers.begin(); }
  auto end() const { return UnsafeBuffers.end(); }
};
 
struct UnsafeBufferReachableAnalysisResult final : AnalysisResult {
  static AnalysisName analysisName() {
    return AnalysisName(UnsafeBufferReachableAnalysisResultName.str());
  }
 
  std::map<EntityId, EntityPointerLevelSet> Reachables;
};
 
} // namespace clang::ssaf
 
#endif // LLVM_CLANG_SCALABLESTATICANALYSISFRAMEWORK_ANALYSES_UNSAFEBUFFERUSAGE_UNSAFEBUFFERUSAGEANALYSIS_H