clang 19.0.0git
XRayLists.cpp
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1//===-- XRayLists.cpp - XRay automatic-attribution ------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// User-provided filters for always/never XRay instrumenting certain functions.
10//
11//===----------------------------------------------------------------------===//
12
16#include "llvm/Support/SpecialCaseList.h"
17
18using namespace clang;
19
21 ArrayRef<std::string> AlwaysInstrumentPaths,
22 ArrayRef<std::string> NeverInstrumentPaths,
24 : AlwaysInstrument(llvm::SpecialCaseList::createOrDie(
25 AlwaysInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
26 NeverInstrument(llvm::SpecialCaseList::createOrDie(
27 NeverInstrumentPaths, SM.getFileManager().getVirtualFileSystem())),
28 AttrList(llvm::SpecialCaseList::createOrDie(
29 AttrListPaths, SM.getFileManager().getVirtualFileSystem())),
30 SM(SM) {}
31
33
35XRayFunctionFilter::shouldImbueFunction(StringRef FunctionName) const {
36 // First apply the always instrument list, than if it isn't an "always" see
37 // whether it's treated as a "never" instrument function.
38 // TODO: Remove these as they're deprecated; use the AttrList exclusively.
39 if (AlwaysInstrument->inSection("xray_always_instrument", "fun", FunctionName,
40 "arg1") ||
41 AttrList->inSection("always", "fun", FunctionName, "arg1"))
43 if (AlwaysInstrument->inSection("xray_always_instrument", "fun",
44 FunctionName) ||
45 AttrList->inSection("always", "fun", FunctionName))
47
48 if (NeverInstrument->inSection("xray_never_instrument", "fun",
49 FunctionName) ||
50 AttrList->inSection("never", "fun", FunctionName))
52
54}
55
58 StringRef Category) const {
59 if (AlwaysInstrument->inSection("xray_always_instrument", "src", Filename,
60 Category) ||
61 AttrList->inSection("always", "src", Filename, Category))
63 if (NeverInstrument->inSection("xray_never_instrument", "src", Filename,
64 Category) ||
65 AttrList->inSection("never", "src", Filename, Category))
68}
69
72 StringRef Category) const {
73 if (!Loc.isValid())
76 Category);
77}
#define SM(sm)
Definition: Cuda.cpp:83
Defines the clang::FileManager interface and associated types.
int Category
Definition: Format.cpp:2992
StringRef Filename
Definition: Format.cpp:2989
SourceLocation Loc
Definition: SemaObjC.cpp:758
Defines the SourceManager interface.
Encodes a location in the source.
bool isValid() const
Return true if this is a valid SourceLocation object.
This class handles loading and caching of source files into memory.
SourceLocation getFileLoc(SourceLocation Loc) const
Given Loc, if it is a macro location return the expansion location or the spelling location,...
StringRef getFilename(SourceLocation SpellingLoc) const
Return the filename of the file containing a SourceLocation.
ImbueAttribute shouldImbueLocation(SourceLocation Loc, StringRef Category=StringRef()) const
Definition: XRayLists.cpp:71
ImbueAttribute shouldImbueFunctionsInFile(StringRef Filename, StringRef Category=StringRef()) const
Definition: XRayLists.cpp:57
ImbueAttribute shouldImbueFunction(StringRef FunctionName) const
Definition: XRayLists.cpp:35
XRayFunctionFilter(ArrayRef< std::string > AlwaysInstrumentPaths, ArrayRef< std::string > NeverInstrumentPaths, ArrayRef< std::string > AttrListPaths, SourceManager &SM)
Definition: XRayLists.cpp:20
The JSON file list parser is used to communicate input to InstallAPI.
Diagnostic wrappers for TextAPI types for error reporting.
Definition: Dominators.h:30