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
15using namespace clang;
16
17std::unique_ptr<SanitizerSpecialCaseList>
18SanitizerSpecialCaseList::create(const std::vector<std::string> &Paths,
19                                 llvm::vfs::FileSystem &VFS,
20                                 std::string &Error) {
21  std::unique_ptr<clang::SanitizerSpecialCaseList> SSCL(
22      new SanitizerSpecialCaseList());
23  if (SSCL->createInternal(Paths, VFS, Error)) {
24    SSCL->createSanitizerSections();
25    return SSCL;
26  }
27  return nullptr;
28}
29
30std::unique_ptr<SanitizerSpecialCaseList>
31SanitizerSpecialCaseList::createOrDie(const std::vector<std::string> &Paths,
32                                      llvm::vfs::FileSystem &VFS) {
33  std::string Error;
34  if (auto SSCL = create(Paths, VFS, Error))
35    return SSCL;
36  llvm::report_fatal_error(StringRef(Error));
37}
38
39void SanitizerSpecialCaseList::createSanitizerSections() {
40  for (auto &S : Sections) {
41    SanitizerMask Mask;
42
43#define SANITIZER(NAME, ID)                                                    \
44  if (S.SectionMatcher->match(NAME))                                           \
45    Mask |= SanitizerKind::ID;
46#define SANITIZER_GROUP(NAME, ID, ALIAS) SANITIZER(NAME, ID)
47
48#include "clang/Basic/Sanitizers.def"
49#undef SANITIZER
50#undef SANITIZER_GROUP
51
52    SanitizerSections.emplace_back(Mask, S.Entries);
53  }
54}
55
56bool SanitizerSpecialCaseList::inSection(SanitizerMask Mask, StringRef Prefix,
57                                         StringRef Query,
58                                         StringRef Category) const {
59  for (auto &S : SanitizerSections)
60    if ((S.Mask & Mask) &&
61        SpecialCaseList::inSectionBlame(S.Entries, Prefix, Query, Category))
62      return true;
63
64  return false;
65}
66