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//===-- SpecialCaseList.h - blacklist for sanitizers ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//===----------------------------------------------------------------------===//
//
// This is a utility class for instrumentation passes (like AddressSanitizer
// or ThreadSanitizer) to avoid instrumenting some functions or global
// variables based on a user-supplied blacklist.
//
// The blacklist disables instrumentation of various functions and global
// variables. Each line contains a prefix, followed by a wild card expression.
// Empty lines and lines starting with "#" are ignored.
// ---
// # Blacklisted items:
// fun:*_ZN4base6subtle*
// global:*global_with_bad_access_or_initialization*
// global-init:*global_with_initialization_issues*
// global-init-type:*Namespace::ClassName*
// src:file_with_tricky_code.cc
// global-init-src:ignore-global-initializers-issues.cc
// ---
// Note that the wild card is in fact an llvm::Regex, but * is automatically
// replaced with .*
// This is similar to the "ignore" feature of ThreadSanitizer.
// http://code.google.com/p/data-race-test/wiki/ThreadSanitizerIgnores
//
//===----------------------------------------------------------------------===//
//
#include "llvm/ADT/StringMap.h"
namespace llvm {
class Function;
class GlobalVariable;
class Module;
class Regex;
class StringRef;
class SpecialCaseList {
public:
SpecialCaseList(const StringRef Path);
// Returns whether either this function or it's source file are blacklisted.
bool isIn(const Function &F) const;
// Returns whether either this global or it's source file are blacklisted.
bool isIn(const GlobalVariable &G) const;
// Returns whether this module is blacklisted by filename.
bool isIn(const Module &M) const;
// Returns whether a global should be excluded from initialization checking.
bool isInInit(const GlobalVariable &G) const;
private:
StringMap<Regex*> Entries;
bool inSection(const StringRef Section, const StringRef Query) const;
};
} // namespace llvm
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