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//===--- SanitizerSpecialCaseList.cpp - SCL 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
//
//===----------------------------------------------------------------------===//
//
// An extension of SpecialCaseList to allowing querying sections by
// SanitizerMask.
//
//===----------------------------------------------------------------------===//
#include "clang/Basic/SanitizerSpecialCaseList.h"
#include "llvm/ADT/STLExtras.h"
using namespace clang;
std::unique_ptr<SanitizerSpecialCaseList>
SanitizerSpecialCaseList::create(const std::vector<std::string> &Paths,
llvm::vfs::FileSystem &VFS,
std::string &Error) {
std::unique_ptr<clang::SanitizerSpecialCaseList> SSCL(
new SanitizerSpecialCaseList());
if (SSCL->createInternal(Paths, VFS, Error)) {
SSCL->createSanitizerSections();
return SSCL;
}
return nullptr;
}
std::unique_ptr<SanitizerSpecialCaseList>
SanitizerSpecialCaseList::createOrDie(const std::vector<std::string> &Paths,
llvm::vfs::FileSystem &VFS) {
std::string Error;
if (auto SSCL = create(Paths, VFS, Error))
return SSCL;
llvm::report_fatal_error(StringRef(Error));
}
void SanitizerSpecialCaseList::createSanitizerSections() {
for (auto &S : Sections) {
SanitizerMask Mask;
#define SANITIZER(NAME, ID) \
if (S.SectionMatcher->match(NAME)) \
Mask |= SanitizerKind::ID;
#define SANITIZER_GROUP(NAME, ID, ALIAS) SANITIZER(NAME, ID)
#include "clang/Basic/Sanitizers.def"
#undef SANITIZER
#undef SANITIZER_GROUP
SanitizerSections.emplace_back(Mask, S.Entries, S.FileIdx);
}
}
bool SanitizerSpecialCaseList::inSection(SanitizerMask Mask, StringRef Prefix,
StringRef Query,
StringRef Category) const {
return inSectionBlame(Mask, Prefix, Query, Category) != NotFound;
}
std::pair<unsigned, unsigned>
SanitizerSpecialCaseList::inSectionBlame(SanitizerMask Mask, StringRef Prefix,
StringRef Query,
StringRef Category) const {
for (const auto &S : llvm::reverse(SanitizerSections)) {
if (S.Mask & Mask) {
unsigned LineNum =
SpecialCaseList::inSectionBlame(S.Entries, Prefix, Query, Category);
if (LineNum > 0)
return {S.FileIdx, LineNum};
}
}
return NotFound;
}
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