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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
60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
//===--- XRayFunctionFilter.cpp - XRay automatic-attribution --------------===//
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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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// User-provided filters for always/never XRay instrumenting certain functions.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/XRayLists.h"
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using namespace clang;
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XRayFunctionFilter::XRayFunctionFilter(
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ArrayRef<std::string> AlwaysInstrumentPaths,
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ArrayRef<std::string> NeverInstrumentPaths, SourceManager &SM)
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: AlwaysInstrument(
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llvm::SpecialCaseList::createOrDie(AlwaysInstrumentPaths)),
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NeverInstrument(llvm::SpecialCaseList::createOrDie(NeverInstrumentPaths)),
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SM(SM) {}
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XRayFunctionFilter::ImbueAttribute
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XRayFunctionFilter::shouldImbueFunction(StringRef FunctionName) const {
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// First apply the always instrument list, than if it isn't an "always" see
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// whether it's treated as a "never" instrument function.
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if (AlwaysInstrument->inSection("xray_always_instrument", "fun", FunctionName,
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"arg1"))
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return ImbueAttribute::ALWAYS_ARG1;
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if (AlwaysInstrument->inSection("xray_always_instrument", "fun",
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FunctionName))
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return ImbueAttribute::ALWAYS;
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if (NeverInstrument->inSection("xray_never_instrument", "fun", FunctionName))
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return ImbueAttribute::NEVER;
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return ImbueAttribute::NONE;
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}
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XRayFunctionFilter::ImbueAttribute
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XRayFunctionFilter::shouldImbueFunctionsInFile(StringRef Filename,
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StringRef Category) const {
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if (AlwaysInstrument->inSection("xray_always_instrument", "src", Filename,
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Category))
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return ImbueAttribute::ALWAYS;
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if (NeverInstrument->inSection("xray_never_instrument", "src", Filename,
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Category))
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return ImbueAttribute::NEVER;
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return ImbueAttribute::NONE;
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}
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XRayFunctionFilter::ImbueAttribute
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XRayFunctionFilter::shouldImbueLocation(SourceLocation Loc,
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StringRef Category) const {
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if (!Loc.isValid())
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return ImbueAttribute::NONE;
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return this->shouldImbueFunctionsInFile(SM.getFilename(SM.getFileLoc(Loc)),
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Category);
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}
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