XRayLists.h

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//===--- XRayLists.h - XRay automatic attribution ---------------*- 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
//
//===----------------------------------------------------------------------===//
//
// User-provided filters for always/never XRay instrumenting certain functions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_BASIC_XRAYLISTS_H
#define LLVM_CLANG_BASIC_XRAYLISTS_H
 
#include "clang/Basic/LLVM.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include <memory>
 
namespace llvm {
class SpecialCaseList;
}
 
namespace clang {
 
class SourceManager;
 
class XRayFunctionFilter {
  std::unique_ptr<llvm::SpecialCaseList> AlwaysInstrument;
  std::unique_ptr<llvm::SpecialCaseList> NeverInstrument;
  std::unique_ptr<llvm::SpecialCaseList> AttrList;
  SourceManager &SM;
 
public:
  XRayFunctionFilter(ArrayRef<std::string> AlwaysInstrumentPaths,
                     ArrayRef<std::string> NeverInstrumentPaths,
                     ArrayRef<std::string> AttrListPaths, SourceManager &SM);
  ~XRayFunctionFilter();
 
  enum class ImbueAttribute {
    NONE,
    ALWAYS,
    NEVER,
    ALWAYS_ARG1,
  };
 
  ImbueAttribute shouldImbueFunction(StringRef FunctionName) const;
 
  ImbueAttribute
  shouldImbueFunctionsInFile(StringRef Filename,
                             StringRef Category = StringRef()) const;
 
  ImbueAttribute shouldImbueLocation(SourceLocation Loc,
                                     StringRef Category = StringRef()) const;
};
 
} // namespace clang
 
#endif