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2eccdab308
Summary: This is the follow-up patch to D37924. This change refactors clang to use the the newly added section headers in SpecialCaseList to specify which sanitizers blacklists entries should apply to, like so: [cfi-vcall] fun:*bad_vcall* [cfi-derived-cast|cfi-unrelated-cast] fun:*bad_cast* The SanitizerSpecialCaseList class has been added to allow querying by SanitizerMask, and SanitizerBlacklist and its downstream users have been updated to provide that information. Old blacklists not using sections will continue to function identically since the blacklist entries will be placed into a '[*]' section by default matching against all sanitizers. Reviewers: pcc, kcc, eugenis, vsk Reviewed By: eugenis Subscribers: dberris, cfe-commits, mgorny Differential Revision: https://reviews.llvm.org/D37925 llvm-svn: 314171
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
//===--- SanitizerSpecialCaseList.cpp - SCL for sanitizers ----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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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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, 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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std::string Error;
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if (auto SSCL = create(Paths, Error))
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return SSCL;
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llvm::report_fatal_error(Error);
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}
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void SanitizerSpecialCaseList::createSanitizerSections() {
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for (auto &S : Sections) {
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SanitizerMask Mask = 0;
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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::inSection(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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