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e08464fb45
Most clients of SourceManager.h need to do things like turning source
locations into file & line number pairs, but this doesn't require
bringing in FileManager.h and LLVM's FS headers.
The main code change here is to sink SM::createFileID into the cpp file.
I reason that this is not performance critical because it doesn't happen
on the diagnostic path, it happens along the paths of macro expansion
(could be hot) and new includes (less hot).
Saves some includes:
309 - /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileManager.h
272 - /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileSystemOptions.h
271 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/VirtualFileSystem.h
267 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/FileSystem.h
266 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/Chrono.h
Differential Revision: https://reviews.llvm.org/D75406
78 lines
3.3 KiB
C++
78 lines
3.3 KiB
C++
//===-- XRayLists.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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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "llvm/Support/SpecialCaseList.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(llvm::SpecialCaseList::createOrDie(
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AlwaysInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
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NeverInstrument(llvm::SpecialCaseList::createOrDie(
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NeverInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
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AttrList(llvm::SpecialCaseList::createOrDie(
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AttrListPaths, SM.getFileManager().getVirtualFileSystem())),
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SM(SM) {}
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XRayFunctionFilter::~XRayFunctionFilter() = default;
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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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