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

// MmapWriteExecChecker.cpp - Check for the prot argument -----------------===//
//
// 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 tests the 3rd argument of mmap's calls to check if
// it is writable and executable in the same time. It's somehow
// an optional checker since for example in JIT libraries it is pretty common.
//
//===----------------------------------------------------------------------===//

#include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"

#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/BugReporter/CommonBugCategories.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/CheckerHelpers.h"

usingnamespaceclang;
usingnamespaceento;

namespace {
class MmapWriteExecChecker
    : public Checker<check::ASTDecl<TranslationUnitDecl>, check::PreCall> { … };
}

void MmapWriteExecChecker::checkASTDecl(const TranslationUnitDecl *TU,
                                        AnalysisManager &Mgr,
                                        BugReporter &BR) const { … }

void MmapWriteExecChecker::checkPreCall(const CallEvent &Call,
                                        CheckerContext &C) const { … }

void ento::registerMmapWriteExecChecker(CheckerManager &Mgr) { … }

bool ento::shouldRegisterMmapWriteExecChecker(const CheckerManager &) { … }