Fix valgrind with remote Linux hosts.

This reverts commit f1ccad12dc and adds the necessary code to make both
the local and the remote case work.

Task-number: QTCREATORBUG-16153
Change-Id: I233ec9d7b31ca6e076515dd03ae7400758ee0c34
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/valgrind/memcheck/memcheckrunner.cpp

@@ -95,10 +95,11 @@ bool MemcheckRunner::start()
 {
     QTC_ASSERT(d->parser, return false);
 
-    if (!startServers())
-        return false;
-
-    setValgrindArguments(memcheckLogArguments() + valgrindArguments());
+    if (device()->type() == ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE) {
+        if (!startServers(QHostAddress::LocalHost))
+            return false;
+        setValgrindArguments(memcheckLogArguments() + valgrindArguments());
+    }
 
     return ValgrindRunner::start();
 }
@@ -133,10 +134,8 @@ void MemcheckRunner::readLogSocket()
     emit logMessageReceived(d->logSocket->readAll());
 }
 
-bool MemcheckRunner::startServers()
+bool MemcheckRunner::startServers(const QHostAddress &localHostAddress)
 {
-    QHostAddress localHostAddress(QHostAddress::LocalHost);
-
     bool check = d->xmlServer.listen(localHostAddress);
     const QString ip = localHostAddress.toString();
     if (!check) {
@@ -172,5 +171,13 @@ QStringList MemcheckRunner::memcheckLogArguments() const
     return arguments;
 }
 
+void MemcheckRunner::localHostAddressRetrieved(const QHostAddress &localHostAddress)
+{
+    if (startServers(localHostAddress)) {
+        setValgrindArguments(memcheckLogArguments() + valgrindArguments());
+        valgrindProcess()->setValgrindArguments(fullValgrindArguments());
+    }
+}
+
 } // namespace Memcheck
 } // namespace Valgrind

src/plugins/valgrind/memcheck/memcheckrunner.h

@@ -53,6 +53,8 @@ signals:
     void logMessageReceived(const QByteArray &);
 
 private slots:
+    void localHostAddressRetrieved(const QHostAddress &localHostAddress);
+
     void xmlSocketConnected();
     void logSocketConnected();
     void readLogSocket();
@@ -60,7 +62,7 @@ private slots:
 private:
     QString tool() const;
 
-    bool startServers();
+    bool startServers(const QHostAddress &localHostAddress);
     QStringList memcheckLogArguments() const;
 
     class Private;

src/plugins/valgrind/valgrindprocess.cpp

@@ -205,6 +205,8 @@ void ValgrindProcess::connected()
 {
     QTC_ASSERT(m_remote.m_connection->state() == QSsh::SshConnection::Connected, return);
 
+    emit localHostAddressRetrieved(m_remote.m_connection->connectionInfo().localAddress);
+
     // connected, run command
     QString cmd;
 

src/plugins/valgrind/valgrindprocess.h

@@ -75,6 +75,7 @@ signals:
     void finished(int, QProcess::ExitStatus);
     void error(QProcess::ProcessError);
     void processOutput(const QString &, Utils::OutputFormat format);
+    void localHostAddressRetrieved(const QHostAddress &localHostAddress);
 
 private:
     void handleRemoteStderr();

src/plugins/valgrind/valgrindrunner.cpp

@@ -147,6 +147,8 @@ bool ValgrindRunner::start()
                      this, &ValgrindRunner::processFinished);
     QObject::connect(d->process, &ValgrindProcess::error,
                      this, &ValgrindRunner::processError);
+    QObject::connect(d->process, &ValgrindProcess::localHostAddressRetrieved,
+                     this, &ValgrindRunner::localHostAddressRetrieved);
 
     d->process->run(d->debuggee.runMode);
     return true;
@@ -178,6 +180,11 @@ void ValgrindRunner::processFinished(int ret, QProcess::ExitStatus status)
         emit processErrorReceived(errorString(), d->process->processError());
 }
 
+void ValgrindRunner::localHostAddressRetrieved(const QHostAddress &localHostAddress)
+{
+    Q_UNUSED(localHostAddress);
+}
+
 QString ValgrindRunner::errorString() const
 {
     if (d->process)

src/plugins/valgrind/valgrindrunner.h

@@ -80,6 +80,7 @@ signals:
 protected slots:
     virtual void processError(QProcess::ProcessError);
     virtual void processFinished(int, QProcess::ExitStatus);
+    virtual void localHostAddressRetrieved(const QHostAddress &localHostAddress);
 
 private:
     class Private;