43bb68b455
See https://github.com/llvm/llvm-project/issues/139128 If multiple entries match the source, than the latest entry takes the precedence.
75 lines
3.0 KiB
C++
75 lines
3.0 KiB
C++
//===--- NoSanitizeList.cpp - Ignored list 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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// User-provided ignore-list used to disable/alter instrumentation done in
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// sanitizers.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/NoSanitizeList.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SanitizerSpecialCaseList.h"
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#include "clang/Basic/Sanitizers.h"
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#include "clang/Basic/SourceManager.h"
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using namespace clang;
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NoSanitizeList::NoSanitizeList(const std::vector<std::string> &NoSanitizePaths,
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SourceManager &SM)
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: SSCL(SanitizerSpecialCaseList::createOrDie(
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NoSanitizePaths, SM.getFileManager().getVirtualFileSystem())),
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SM(SM) {}
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NoSanitizeList::~NoSanitizeList() = default;
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bool NoSanitizeList::containsPrefix(SanitizerMask Mask, StringRef Prefix,
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StringRef Name, StringRef Category) const {
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std::pair<unsigned, unsigned> NoSan =
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SSCL->inSectionBlame(Mask, Prefix, Name, Category);
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if (NoSan == llvm::SpecialCaseList::NotFound)
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return false;
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std::pair<unsigned, unsigned> San =
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SSCL->inSectionBlame(Mask, Prefix, Name, "sanitize");
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// The statement evaluates to true under the following conditions:
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// 1. The string "prefix:*=sanitize" is absent.
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// 2. If "prefix:*=sanitize" is present, its (File Index, Line Number) is less
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// than that of "prefix:*".
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return San == llvm::SpecialCaseList::NotFound || NoSan > San;
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}
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bool NoSanitizeList::containsGlobal(SanitizerMask Mask, StringRef GlobalName,
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StringRef Category) const {
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return containsPrefix(Mask, "global", GlobalName, Category);
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}
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bool NoSanitizeList::containsType(SanitizerMask Mask, StringRef MangledTypeName,
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StringRef Category) const {
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return containsPrefix(Mask, "type", MangledTypeName, Category);
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}
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bool NoSanitizeList::containsFunction(SanitizerMask Mask,
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StringRef FunctionName) const {
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return containsPrefix(Mask, "fun", FunctionName, {});
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}
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bool NoSanitizeList::containsFile(SanitizerMask Mask, StringRef FileName,
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StringRef Category) const {
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return containsPrefix(Mask, "src", FileName, Category);
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}
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bool NoSanitizeList::containsMainFile(SanitizerMask Mask, StringRef FileName,
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StringRef Category) const {
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return containsPrefix(Mask, "mainfile", FileName, Category);
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}
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bool NoSanitizeList::containsLocation(SanitizerMask Mask, SourceLocation Loc,
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StringRef Category) const {
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return Loc.isValid() &&
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containsFile(Mask, SM.getFilename(SM.getFileLoc(Loc)), Category);
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}
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