contrib/llvm/tools/clang/lib/Basic/SanitizerSpecialCaseList.cpp

   1 //===--- SanitizerSpecialCaseList.cpp - SCL for sanitizers ----------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // An extension of SpecialCaseList to allowing querying sections by
  10 // SanitizerMask.
  11 //
  12 //===----------------------------------------------------------------------===//
  13 #include "clang/Basic/SanitizerSpecialCaseList.h"
  14
  15 using namespace clang;
  16
  17 std::unique_ptr<SanitizerSpecialCaseList>
  18 SanitizerSpecialCaseList::create(const std::vector<std::string> &Paths,
  19                                  std::string &Error) {
  20   std::unique_ptr<clang::SanitizerSpecialCaseList> SSCL(
  21       new SanitizerSpecialCaseList());
  22   if (SSCL->createInternal(Paths, Error)) {
  23     SSCL->createSanitizerSections();
  24     return SSCL;
  25   }
  26   return nullptr;
  27 }
  28
  29 std::unique_ptr<SanitizerSpecialCaseList>
  30 SanitizerSpecialCaseList::createOrDie(const std::vector<std::string> &Paths) {
  31   std::string Error;
  32   if (auto SSCL = create(Paths, Error))
  33     return SSCL;
  34   llvm::report_fatal_error(Error);
  35 }
  36
  37 void SanitizerSpecialCaseList::createSanitizerSections() {
  38   for (auto &S : Sections) {
  39     SanitizerMask Mask;
  40
  41 #define SANITIZER(NAME, ID)                                                    \
  42   if (S.SectionMatcher->match(NAME))                                           \
  43     Mask |= SanitizerKind::ID;
  44 #define SANITIZER_GROUP(NAME, ID, ALIAS) SANITIZER(NAME, ID)
  45
  46 #include "clang/Basic/Sanitizers.def"
  47 #undef SANITIZER
  48 #undef SANITIZER_GROUP
  49
  50     SanitizerSections.emplace_back(Mask, S.Entries);
  51   }
  52 }
  53
  54 bool SanitizerSpecialCaseList::inSection(SanitizerMask Mask, StringRef Prefix,
  55                                          StringRef Query,
  56                                          StringRef Category) const {
  57   for (auto &S : SanitizerSections)
  58     if ((S.Mask & Mask) &&
  59         SpecialCaseList::inSectionBlame(S.Entries, Prefix, Query, Category))
  60       return true;
  61
  62   return false;
  63 }