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

   1 //===--- SanitizerSpecialCaseList.cpp - SCL for sanitizers ----------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // An extension of SpecialCaseList to allowing querying sections by
  11 // SanitizerMask.
  12 //
  13 //===----------------------------------------------------------------------===//
  14 #include "clang/Basic/SanitizerSpecialCaseList.h"
  15
  16 using namespace clang;
  17
  18 std::unique_ptr<SanitizerSpecialCaseList>
  19 SanitizerSpecialCaseList::create(const std::vector<std::string> &Paths,
  20                                  std::string &Error) {
  21   std::unique_ptr<clang::SanitizerSpecialCaseList> SSCL(
  22       new SanitizerSpecialCaseList());
  23   if (SSCL->createInternal(Paths, Error)) {
  24     SSCL->createSanitizerSections();
  25     return SSCL;
  26   }
  27   return nullptr;
  28 }
  29
  30 std::unique_ptr<SanitizerSpecialCaseList>
  31 SanitizerSpecialCaseList::createOrDie(const std::vector<std::string> &Paths) {
  32   std::string Error;
  33   if (auto SSCL = create(Paths, Error))
  34     return SSCL;
  35   llvm::report_fatal_error(Error);
  36 }
  37
  38 void SanitizerSpecialCaseList::createSanitizerSections() {
  39   for (auto &S : Sections) {
  40     SanitizerMask Mask = 0;
  41
  42 #define SANITIZER(NAME, ID)                                                    \
  43   if (S.SectionMatcher->match(NAME))                                           \
  44     Mask |= SanitizerKind::ID;
  45 #define SANITIZER_GROUP(NAME, ID, ALIAS) SANITIZER(NAME, ID)
  46
  47 #include "clang/Basic/Sanitizers.def"
  48 #undef SANITIZER
  49 #undef SANITIZER_GROUP
  50
  51     SanitizerSections.emplace_back(Mask, S.Entries);
  52   }
  53 }
  54
  55 bool SanitizerSpecialCaseList::inSection(SanitizerMask Mask, StringRef Prefix,
  56                                          StringRef Query,
  57                                          StringRef Category) const {
  58   for (auto &S : SanitizerSections)
  59     if ((S.Mask & Mask) &&
  60         SpecialCaseList::inSectionBlame(S.Entries, Prefix, Query, Category))
  61       return true;
  62
  63   return false;
  64 }