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8eb34700c2
Add an option in `SpecialCaseList` to use Globs instead of Regex to match patterns. `GlobPattern` was extended in https://reviews.llvm.org/D153587 to support brace expansions which allows us to use patterns like `*/src/foo.{c,cpp}`. It turns out that most patterns only take advantage of `*` so using Regex was overkill and required lots of escaping in practice. This often led to bugs due to forgetting to escape special characters. Since this would be a breaking change, we temporarily support Regex by default and use Globs when `#!special-case-list-v2` is the first line in the file. Users should switch to the glob format described in https://llvm.org/doxygen/classllvm_1_1GlobPattern.html. For example, `(abc|def)` should become `{abc,def}`. See discussion in https://reviews.llvm.org/D152762 and https://discourse.llvm.org/t/use-glob-instead-of-regex-for-specialcaselists/71666. Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D154014
67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
//===--- SanitizerSpecialCaseList.cpp - SCL for sanitizers ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// An extension of SpecialCaseList to allowing querying sections by
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// SanitizerMask.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/SanitizerSpecialCaseList.h"
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using namespace clang;
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std::unique_ptr<SanitizerSpecialCaseList>
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SanitizerSpecialCaseList::create(const std::vector<std::string> &Paths,
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llvm::vfs::FileSystem &VFS,
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std::string &Error) {
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std::unique_ptr<clang::SanitizerSpecialCaseList> SSCL(
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new SanitizerSpecialCaseList());
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if (SSCL->createInternal(Paths, VFS, Error)) {
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SSCL->createSanitizerSections();
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return SSCL;
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}
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return nullptr;
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}
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std::unique_ptr<SanitizerSpecialCaseList>
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SanitizerSpecialCaseList::createOrDie(const std::vector<std::string> &Paths,
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llvm::vfs::FileSystem &VFS) {
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std::string Error;
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if (auto SSCL = create(Paths, VFS, Error))
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return SSCL;
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llvm::report_fatal_error(StringRef(Error));
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}
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void SanitizerSpecialCaseList::createSanitizerSections() {
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for (auto &It : Sections) {
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auto &S = It.second;
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SanitizerMask Mask;
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#define SANITIZER(NAME, ID) \
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if (S.SectionMatcher->match(NAME)) \
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Mask |= SanitizerKind::ID;
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#define SANITIZER_GROUP(NAME, ID, ALIAS) SANITIZER(NAME, ID)
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#include "clang/Basic/Sanitizers.def"
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#undef SANITIZER
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#undef SANITIZER_GROUP
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SanitizerSections.emplace_back(Mask, S.Entries);
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}
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}
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bool SanitizerSpecialCaseList::inSection(SanitizerMask Mask, StringRef Prefix,
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StringRef Query,
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StringRef Category) const {
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for (auto &S : SanitizerSections)
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if ((S.Mask & Mask) &&
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SpecialCaseList::inSectionBlame(S.Entries, Prefix, Query, Category))
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return true;
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return false;
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}
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