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📄 Attributes.cpp(4.35 KB)
📄 Builtins.cpp(7.39 KB)
📄 CharInfo.cpp(4.03 KB)
📄 CodeGenOptions.cpp(997 B)
📄 Cuda.cpp(5.85 KB)
📄 Diagnostic.cpp(41.13 KB)
📄 DiagnosticIDs.cpp(25.94 KB)
📄 DiagnosticOptions.cpp(837 B)
📄 ExpressionTraits.cpp(1.21 KB)
📄 FileManager.cpp(21.8 KB)
📄 FileSystemStatCache.cpp(4.45 KB)
📄 FixedPoint.cpp(13.51 KB)
📄 IdentifierTable.cpp(23.6 KB)
📄 LangOptions.cpp(2.36 KB)
📄 LangStandards.cpp(1.56 KB)
📄 Module.cpp(20.64 KB)
📄 ObjCRuntime.cpp(3 KB)
📄 OpenMPKinds.cpp(25.62 KB)
📄 OperatorPrecedence.cpp(2.77 KB)
📄 SanitizerBlacklist.cpp(2.35 KB)
📄 SanitizerSpecialCaseList.cpp(2.22 KB)
📄 Sanitizers.cpp(2.07 KB)
📄 SourceLocation.cpp(7.15 KB)
📄 SourceManager.cpp(85.48 KB)
📄 Stack.cpp(2.41 KB)
📄 TargetInfo.cpp(27.2 KB)
📁 Targets
📄 Targets.cpp(24.48 KB)
📄 Targets.h(1.73 KB)
📄 TokenKinds.cpp(1.69 KB)
📄 TypeTraits.cpp(2.85 KB)
📄 Version.cpp(2.86 KB)
📄 Warnings.cpp(8.62 KB)
📄 XRayInstr.cpp(1.21 KB)
📄 XRayLists.cpp(3.31 KB)

Editing: XRayLists.cpp

//===-- XRayLists.cpp - XRay automatic-attribution ------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//

#include "clang/Basic/XRayLists.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/Support/SpecialCaseList.h"

using namespace clang;

XRayFunctionFilter::XRayFunctionFilter(
    ArrayRef<std::string> AlwaysInstrumentPaths,
    ArrayRef<std::string> NeverInstrumentPaths,
    ArrayRef<std::string> AttrListPaths, SourceManager &SM)
    : AlwaysInstrument(llvm::SpecialCaseList::createOrDie(
          AlwaysInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
      NeverInstrument(llvm::SpecialCaseList::createOrDie(
          NeverInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
      AttrList(llvm::SpecialCaseList::createOrDie(
          AttrListPaths, SM.getFileManager().getVirtualFileSystem())),
      SM(SM) {}

XRayFunctionFilter::~XRayFunctionFilter() = default;

XRayFunctionFilter::ImbueAttribute
XRayFunctionFilter::shouldImbueFunction(StringRef FunctionName) const {
  // First apply the always instrument list, than if it isn't an "always" see
  // whether it's treated as a "never" instrument function.
  // TODO: Remove these as they're deprecated; use the AttrList exclusively.
  if (AlwaysInstrument->inSection("xray_always_instrument", "fun", FunctionName,
                                  "arg1") ||
      AttrList->inSection("always", "fun", FunctionName, "arg1"))
    return ImbueAttribute::ALWAYS_ARG1;
  if (AlwaysInstrument->inSection("xray_always_instrument", "fun",
                                  FunctionName) ||
      AttrList->inSection("always", "fun", FunctionName))
    return ImbueAttribute::ALWAYS;

if (NeverInstrument->inSection("xray_never_instrument", "fun",
                                 FunctionName) ||
      AttrList->inSection("never", "fun", FunctionName))
    return ImbueAttribute::NEVER;

return ImbueAttribute::NONE;
}

XRayFunctionFilter::ImbueAttribute
XRayFunctionFilter::shouldImbueFunctionsInFile(StringRef Filename,
                                               StringRef Category) const {
  if (AlwaysInstrument->inSection("xray_always_instrument", "src", Filename,
                                  Category) ||
      AttrList->inSection("always", "src", Filename, Category))
    return ImbueAttribute::ALWAYS;
  if (NeverInstrument->inSection("xray_never_instrument", "src", Filename,
                                 Category) ||
      AttrList->inSection("never", "src", Filename, Category))
    return ImbueAttribute::NEVER;
  return ImbueAttribute::NONE;
}

XRayFunctionFilter::ImbueAttribute
XRayFunctionFilter::shouldImbueLocation(SourceLocation Loc,
                                        StringRef Category) const {
  if (!Loc.isValid())
    return ImbueAttribute::NONE;
  return this->shouldImbueFunctionsInFile(SM.getFilename(SM.getFileLoc(Loc)),
                                          Category);
}

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Editing: XRayLists.cpp

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