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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
69 lines
3.0 KiB
C++
69 lines
3.0 KiB
C++
//===--- XRayFunctionFilter.cpp - XRay automatic-attribution --------------===//
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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 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,
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ArrayRef<std::string> AttrListPaths, 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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AttrList(llvm::SpecialCaseList::createOrDie(AttrListPaths)), 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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// TODO: Remove these as they're deprecated; use the AttrList exclusively.
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if (AlwaysInstrument->inSection("xray_always_instrument", "fun", FunctionName,
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"arg1") ||
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AttrList->inSection("always", "fun", FunctionName, "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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AttrList->inSection("always", "fun", FunctionName))
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return ImbueAttribute::ALWAYS;
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if (NeverInstrument->inSection("xray_never_instrument", "fun",
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FunctionName) ||
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AttrList->inSection("never", "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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AttrList->inSection("always", "src", Filename, 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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AttrList->inSection("never", "src", Filename, 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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