llvm/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp

//=== BuiltinFunctionChecker.cpp --------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This checker evaluates "standalone" clang builtin functions that are not
// just special-cased variants of well-known non-builtin functions.
// Builtin functions like __builtin_memcpy and __builtin_alloca should be
// evaluated by the same checker that handles their non-builtin variant to
// ensure that the two variants are handled consistently.
//
//===----------------------------------------------------------------------===//

#include "clang/Basic/Builtins.h"
#include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallDescription.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/DynamicExtent.h"

usingnamespaceclang;
usingnamespaceento;

namespace {

class BuiltinFunctionChecker : public Checker<eval::Call> { … };

} // namespace

bool BuiltinFunctionChecker::isBuiltinLikeFunction(
    const CallEvent &Call) const { … }

bool BuiltinFunctionChecker::evalCall(const CallEvent &Call,
                                      CheckerContext &C) const { … }

void ento::registerBuiltinFunctionChecker(CheckerManager &mgr) { … }

bool ento::shouldRegisterBuiltinFunctionChecker(const CheckerManager &mgr) { … }