2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
//===-- MPIBugReporter.cpp - bug reporter -----------------------*- C++ -*-===//
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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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/// \file
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/// This file defines prefabricated reports which are emitted in
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/// case of MPI related bugs, detected by path-sensitive analysis.
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///
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//===----------------------------------------------------------------------===//
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#include "MPIBugReporter.h"
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#include "MPIChecker.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
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namespace clang {
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namespace ento {
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namespace mpi {
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void MPIBugReporter::reportDoubleNonblocking(
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const CallEvent &MPICallEvent, const ento::mpi::Request &Req,
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const MemRegion *const RequestRegion,
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const ExplodedNode *const ExplNode,
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BugReporter &BReporter) const {
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std::string ErrorText;
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ErrorText = "Double nonblocking on request " +
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RequestRegion->getDescriptiveName() + ". ";
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auto Report = llvm::make_unique<BugReport>(*DoubleNonblockingBugType,
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ErrorText, ExplNode);
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Report->addRange(MPICallEvent.getSourceRange());
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SourceRange Range = RequestRegion->sourceRange();
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if (Range.isValid())
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Report->addRange(Range);
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Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
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RequestRegion, "Request is previously used by nonblocking call here. "));
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Report->markInteresting(RequestRegion);
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BReporter.emitReport(std::move(Report));
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}
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void MPIBugReporter::reportMissingWait(
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const ento::mpi::Request &Req, const MemRegion *const RequestRegion,
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const ExplodedNode *const ExplNode,
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BugReporter &BReporter) const {
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std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
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" has no matching wait. "};
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auto Report =
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llvm::make_unique<BugReport>(*MissingWaitBugType, ErrorText, ExplNode);
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SourceRange Range = RequestRegion->sourceRange();
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if (Range.isValid())
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Report->addRange(Range);
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Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
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RequestRegion, "Request is previously used by nonblocking call here. "));
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Report->markInteresting(RequestRegion);
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BReporter.emitReport(std::move(Report));
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}
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void MPIBugReporter::reportUnmatchedWait(
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const CallEvent &CE, const clang::ento::MemRegion *const RequestRegion,
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const ExplodedNode *const ExplNode,
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BugReporter &BReporter) const {
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std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
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" has no matching nonblocking call. "};
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auto Report =
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llvm::make_unique<BugReport>(*UnmatchedWaitBugType, ErrorText, ExplNode);
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Report->addRange(CE.getSourceRange());
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SourceRange Range = RequestRegion->sourceRange();
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if (Range.isValid())
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Report->addRange(Range);
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BReporter.emitReport(std::move(Report));
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}
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std::shared_ptr<PathDiagnosticPiece>
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MPIBugReporter::RequestNodeVisitor::VisitNode(const ExplodedNode *N,
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BugReporterContext &BRC,
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BugReport &BR) {
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if (IsNodeFound)
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return nullptr;
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const Request *const Req = N->getState()->get<RequestMap>(RequestRegion);
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const Request *const PrevReq =
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N->getFirstPred()->getState()->get<RequestMap>(RequestRegion);
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// Check if request was previously unused or in a different state.
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if ((Req && !PrevReq) || (Req->CurrentState != PrevReq->CurrentState)) {
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IsNodeFound = true;
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ProgramPoint P = N->getFirstPred()->getLocation();
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PathDiagnosticLocation L =
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PathDiagnosticLocation::create(P, BRC.getSourceManager());
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return std::make_shared<PathDiagnosticEventPiece>(L, ErrorText);
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}
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return nullptr;
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}
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} // end of namespace: mpi
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} // end of namespace: ento
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} // end of namespace: clang
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