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📄 AArch64TargetParser.cpp(8 KB)
📄 ABIBreak.cpp(811 B)
📄 AMDGPUMetadata.cpp(9.37 KB)
📄 APFloat.cpp(155.26 KB)
📄 APInt.cpp(98.08 KB)
📄 APSInt.cpp(1.44 KB)
📄 ARMAttributeParser.cpp(13.94 KB)
📄 ARMBuildAttrs.cpp(3.45 KB)
📄 ARMTargetParser.cpp(18.09 KB)
📄 ARMWinEH.cpp(1.08 KB)
📄 Allocator.cpp(1.35 KB)
📄 Atomic.cpp(1.6 KB)
📄 BinaryStreamError.cpp(1.76 KB)
📄 BinaryStreamReader.cpp(5.24 KB)
📄 BinaryStreamRef.cpp(4.76 KB)
📄 BinaryStreamWriter.cpp(3.36 KB)
📄 BlockFrequency.cpp(2.12 KB)
📄 BranchProbability.cpp(3.44 KB)
📄 BuryPointer.cpp(1.11 KB)
📄 COM.cpp(737 B)
📄 COPYRIGHT.regex(2.65 KB)
📄 CRC.cpp(5.23 KB)
📄 CachePruning.cpp(10.33 KB)
📄 Chrono.cpp(3.17 KB)
📄 CodeGenCoverage.cpp(3.61 KB)
📄 CommandLine.cpp(89.06 KB)
📄 Compression.cpp(3.84 KB)
📄 ConvertUTF.cpp(27.27 KB)
📄 ConvertUTFWrapper.cpp(8.66 KB)
📄 CrashRecoveryContext.cpp(15.45 KB)
📄 DAGDeltaAlgorithm.cpp(12.47 KB)
📄 DJB.cpp(2.71 KB)
📄 DataExtractor.cpp(7.25 KB)
📄 Debug.cpp(5.64 KB)
📄 DebugCounter.cpp(4.95 KB)
📄 DeltaAlgorithm.cpp(3.41 KB)
📄 DynamicLibrary.cpp(6.25 KB)
📄 ELFAttributeParser.cpp(7.27 KB)
📄 ELFAttributes.cpp(1.27 KB)
📄 Errno.cpp(2.18 KB)
📄 Error.cpp(4.72 KB)
📄 ErrorHandling.cpp(11.08 KB)
📄 ExtensibleRTTI.cpp(446 B)
📄 FileCheck.cpp(95.77 KB)
📄 FileCheckImpl.h(34.14 KB)
📄 FileCollector.cpp(9.01 KB)
📄 FileOutputBuffer.cpp(6.62 KB)
📄 FileUtilities.cpp(10.81 KB)
📄 FoldingSet.cpp(15.89 KB)
📄 FormatVariadic.cpp(5.17 KB)
📄 FormattedStream.cpp(5.29 KB)
📄 GlobPattern.cpp(5 KB)
📄 GraphWriter.cpp(9.21 KB)
📄 Hashing.cpp(1.16 KB)
📄 Host.cpp(51.63 KB)
📄 InitLLVM.cpp(1.92 KB)
📄 IntEqClasses.cpp(2.18 KB)
📄 IntervalMap.cpp(4.4 KB)
📄 ItaniumManglingCanonicalizer.cpp(10.77 KB)
📄 JSON.cpp(19.1 KB)
📄 KnownBits.cpp(3.78 KB)
📄 LEB128.cpp(1.19 KB)
📄 LineIterator.cpp(2.61 KB)
📄 Locale.cpp(377 B)
📄 LockFileManager.cpp(10.64 KB)
📄 LowLevelType.cpp(2.09 KB)
📄 MD5.cpp(8.99 KB)
📄 ManagedStatic.cpp(2.37 KB)
📄 MathExtras.cpp(913 B)
📄 MemAlloc.cpp(1.01 KB)
📄 Memory.cpp(1.57 KB)
📄 MemoryBuffer.cpp(18.99 KB)
📄 NativeFormatting.cpp(7.54 KB)
📄 OptimizedStructLayout.cpp(16.7 KB)
📄 Optional.cpp(530 B)
📄 Parallel.cpp(5.08 KB)
📄 Path.cpp(36.52 KB)
📄 PluginLoader.cpp(1.63 KB)
📄 PrettyStackTrace.cpp(10.33 KB)
📄 Process.cpp(3.27 KB)
📄 Program.cpp(3.54 KB)
📄 RISCVAttributeParser.cpp(2.06 KB)
📄 RISCVAttributes.cpp(970 B)
📄 RWMutex.cpp(3.23 KB)
📄 RandomNumberGenerator.cpp(2.86 KB)
📄 Regex.cpp(6.38 KB)
📄 SHA1.cpp(10.43 KB)
📄 ScaledNumber.cpp(9.09 KB)
📄 ScopedPrinter.cpp(1.19 KB)
📄 Signals.cpp(8.35 KB)
📄 Signposts.cpp(3.24 KB)
📄 SmallPtrSet.cpp(9.21 KB)
📄 SmallVector.cpp(3.99 KB)
📄 SourceMgr.cpp(20.08 KB)
📄 SpecialCaseList.cpp(7.48 KB)
📄 Statistic.cpp(8.85 KB)
📄 StringExtras.cpp(4.34 KB)
📄 StringMap.cpp(9.31 KB)
📄 StringRef.cpp(17.41 KB)
📄 StringSaver.cpp(882 B)
📄 SuffixTree.cpp(7.23 KB)
📄 SymbolRemappingReader.cpp(2.94 KB)
📄 SystemUtils.cpp(1.06 KB)
📄 TarWriter.cpp(7.23 KB)
📄 TargetParser.cpp(9.86 KB)
📄 TargetRegistry.cpp(4.6 KB)
📄 ThreadLocal.cpp(1.68 KB)
📄 ThreadPool.cpp(4.4 KB)
📄 Threading.cpp(4.55 KB)
📄 TimeProfiler.cpp(11.63 KB)
📄 Timer.cpp(14.14 KB)
📄 ToolOutputFile.cpp(1.83 KB)
📄 TrigramIndex.cpp(3.24 KB)
📄 Triple.cpp(53.17 KB)
📄 Twine.cpp(4.6 KB)
📄 Unicode.cpp(20.14 KB)
📄 UnicodeCaseFold.cpp(15.32 KB)
📁 Unix
📄 Valgrind.cpp(1.6 KB)
📄 VersionTuple.cpp(2.74 KB)
📄 VirtualFileSystem.cpp(74.17 KB)
📄 Watchdog.cpp(738 B)
📁 Windows
📄 WithColor.cpp(4.35 KB)
📄 X86TargetParser.cpp(27.21 KB)
📄 YAMLParser.cpp(68.53 KB)
📄 YAMLTraits.cpp(28.37 KB)
📄 Z3Solver.cpp(31.44 KB)
📄 circular_raw_ostream.cpp(1.3 KB)
📄 raw_os_ostream.cpp(995 B)
📄 raw_ostream.cpp(28.97 KB)
📄 regcomp.c(39.42 KB)
📄 regengine.inc(26.49 KB)
📄 regerror.c(4.42 KB)
📄 regex2.h(6.82 KB)
📄 regex_impl.h(3.63 KB)
📄 regexec.c(5.71 KB)
📄 regfree.c(2.49 KB)
📄 regstrlcpy.c(1.56 KB)
📄 regutils.h(2.25 KB)
📄 xxhash.cpp(4.07 KB)

Editing: SpecialCaseList.cpp

//===-- SpecialCaseList.cpp - special case list for sanitizers ------------===//
//
// 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 is a utility class for instrumentation passes (like AddressSanitizer
// or ThreadSanitizer) to avoid instrumenting some functions or global
// variables, or to instrument some functions or global variables in a specific
// way, based on a user-supplied list.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/SpecialCaseList.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/VirtualFileSystem.h"
#include <string>
#include <system_error>
#include <utility>

#include <stdio.h>
namespace llvm {

bool SpecialCaseList::Matcher::insert(std::string Regexp,
                                      unsigned LineNumber,
                                      std::string &REError) {
  if (Regexp.empty()) {
    REError = "Supplied regexp was blank";
    return false;
  }

if (Regex::isLiteralERE(Regexp)) {
    Strings[Regexp] = LineNumber;
    return true;
  }
  Trigrams.insert(Regexp);

// Replace * with .*
  for (size_t pos = 0; (pos = Regexp.find('*', pos)) != std::string::npos;
       pos += strlen(".*")) {
    Regexp.replace(pos, strlen("*"), ".*");
  }

Regexp = (Twine("^(") + StringRef(Regexp) + ")$").str();

// Check that the regexp is valid.
  Regex CheckRE(Regexp);
  if (!CheckRE.isValid(REError))
    return false;

RegExes.emplace_back(
      std::make_pair(std::make_unique<Regex>(std::move(CheckRE)), LineNumber));
  return true;
}

unsigned SpecialCaseList::Matcher::match(StringRef Query) const {
  auto It = Strings.find(Query);
  if (It != Strings.end())
    return It->second;
  if (Trigrams.isDefinitelyOut(Query))
    return false;
  for (auto& RegExKV : RegExes)
    if (RegExKV.first->match(Query))
      return RegExKV.second;
  return 0;
}

std::unique_ptr<SpecialCaseList>
SpecialCaseList::create(const std::vector<std::string> &Paths,
                        llvm::vfs::FileSystem &FS, std::string &Error) {
  std::unique_ptr<SpecialCaseList> SCL(new SpecialCaseList());
  if (SCL->createInternal(Paths, FS, Error))
    return SCL;
  return nullptr;
}

std::unique_ptr<SpecialCaseList> SpecialCaseList::create(const MemoryBuffer *MB,
                                                         std::string &Error) {
  std::unique_ptr<SpecialCaseList> SCL(new SpecialCaseList());
  if (SCL->createInternal(MB, Error))
    return SCL;
  return nullptr;
}

std::unique_ptr<SpecialCaseList>
SpecialCaseList::createOrDie(const std::vector<std::string> &Paths,
                             llvm::vfs::FileSystem &FS) {
  std::string Error;
  if (auto SCL = create(Paths, FS, Error))
    return SCL;
  report_fatal_error(Error);
}

bool SpecialCaseList::createInternal(const std::vector<std::string> &Paths,
                                     vfs::FileSystem &VFS, std::string &Error) {
  StringMap<size_t> Sections;
  for (const auto &Path : Paths) {
    ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
        VFS.getBufferForFile(Path);
    if (std::error_code EC = FileOrErr.getError()) {
      Error = (Twine("can't open file '") + Path + "': " + EC.message()).str();
      return false;
    }
    std::string ParseError;
    if (!parse(FileOrErr.get().get(), Sections, ParseError)) {
      Error = (Twine("error parsing file '") + Path + "': " + ParseError).str();
      return false;
    }
  }
  return true;
}

bool SpecialCaseList::createInternal(const MemoryBuffer *MB,
                                     std::string &Error) {
  StringMap<size_t> Sections;
  if (!parse(MB, Sections, Error))
    return false;
  return true;
}

bool SpecialCaseList::parse(const MemoryBuffer *MB,
                            StringMap<size_t> &SectionsMap,
                            std::string &Error) {
  // Iterate through each line in the exclusion list file.
  SmallVector<StringRef, 16> Lines;
  MB->getBuffer().split(Lines, '\n');

unsigned LineNo = 1;
  StringRef Section = "*";

for (auto I = Lines.begin(), E = Lines.end(); I != E; ++I, ++LineNo) {
    *I = I->trim();
    // Ignore empty lines and lines starting with "#"
    if (I->empty() || I->startswith("#"))
      continue;

// Save section names
    if (I->startswith("[")) {
      if (!I->endswith("]")) {
        Error = (Twine("malformed section header on line ") + Twine(LineNo) +
                 ": " + *I).str();
        return false;
      }

Section = I->slice(1, I->size() - 1);

std::string REError;
      Regex CheckRE(Section);
      if (!CheckRE.isValid(REError)) {
        Error =
            (Twine("malformed regex for section ") + Section + ": '" + REError)
                .str();
        return false;
      }

continue;
    }

// Get our prefix and unparsed regexp.
    std::pair<StringRef, StringRef> SplitLine = I->split(":");
    StringRef Prefix = SplitLine.first;
    if (SplitLine.second.empty()) {
      // Missing ':' in the line.
      Error = (Twine("malformed line ") + Twine(LineNo) + ": '" +
               SplitLine.first + "'").str();
      return false;
    }

std::pair<StringRef, StringRef> SplitRegexp = SplitLine.second.split("=");
    std::string Regexp = std::string(SplitRegexp.first);
    StringRef Category = SplitRegexp.second;

// Create this section if it has not been seen before.
    if (SectionsMap.find(Section) == SectionsMap.end()) {
      std::unique_ptr<Matcher> M = std::make_unique<Matcher>();
      std::string REError;
      if (!M->insert(std::string(Section), LineNo, REError)) {
        Error = (Twine("malformed section ") + Section + ": '" + REError).str();
        return false;
      }

SectionsMap[Section] = Sections.size();
      Sections.emplace_back(std::move(M));
    }

auto &Entry = Sections[SectionsMap[Section]].Entries[Prefix][Category];
    std::string REError;
    if (!Entry.insert(std::move(Regexp), LineNo, REError)) {
      Error = (Twine("malformed regex in line ") + Twine(LineNo) + ": '" +
               SplitLine.second + "': " + REError).str();
      return false;
    }
  }
  return true;
}

SpecialCaseList::~SpecialCaseList() {}

bool SpecialCaseList::inSection(StringRef Section, StringRef Prefix,
                                StringRef Query, StringRef Category) const {
  return inSectionBlame(Section, Prefix, Query, Category);
}

unsigned SpecialCaseList::inSectionBlame(StringRef Section, StringRef Prefix,
                                         StringRef Query,
                                         StringRef Category) const {
  for (auto &SectionIter : Sections)
    if (SectionIter.SectionMatcher->match(Section)) {
      unsigned Blame =
          inSectionBlame(SectionIter.Entries, Prefix, Query, Category);
      if (Blame)
        return Blame;
    }
  return 0;
}

unsigned SpecialCaseList::inSectionBlame(const SectionEntries &Entries,
                                         StringRef Prefix, StringRef Query,
                                         StringRef Category) const {
  SectionEntries::const_iterator I = Entries.find(Prefix);
  if (I == Entries.end()) return 0;
  StringMap<Matcher>::const_iterator II = I->second.find(Category);
  if (II == I->second.end()) return 0;

return II->getValue().match(Query);
}

}  // namespace llvm

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Editing: SpecialCaseList.cpp

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