gdbserver and windbg remote debugging support (#1874)

* Added remote debugging

src/Cutter.pro

@@ -267,6 +267,7 @@ SOURCES += \
     dialogs/EditInstructionDialog.cpp \
     dialogs/FlagDialog.cpp \
     dialogs/RenameDialog.cpp \
+    dialogs/RemoteDebugDialog.cpp \
     dialogs/XrefsDialog.cpp \
     core/MainWindow.cpp \
     common/Helpers.cpp \
@@ -335,6 +336,7 @@ SOURCES += \
     common/CommandTask.cpp \
     common/ProgressIndicator.cpp \
     common/R2Task.cpp \
+    dialogs/R2TaskDialog.cpp \
     widgets/DebugActions.cpp \
     widgets/MemoryMapWidget.cpp \
     dialogs/preferences/DebugOptionsWidget.cpp \
@@ -398,6 +400,7 @@ HEADERS  += \
     dialogs/EditInstructionDialog.h \
     dialogs/FlagDialog.h \
     dialogs/RenameDialog.h \
+    dialogs/RemoteDebugDialog.h \
     dialogs/XrefsDialog.h \
     common/Helpers.h \
     common/HexAsciiHighlighter.h \
@@ -469,6 +472,7 @@ HEADERS  += \
     common/ProgressIndicator.h \
     plugins/CutterPlugin.h \
     common/R2Task.h \
+    dialogs/R2TaskDialog.h \
     widgets/DebugActions.h \
     widgets/MemoryMapWidget.h \
     dialogs/preferences/DebugOptionsWidget.h \
@@ -527,6 +531,7 @@ FORMS    += \
     dialogs/EditInstructionDialog.ui \
     dialogs/FlagDialog.ui \
     dialogs/RenameDialog.ui \
+    dialogs/RemoteDebugDialog.ui \
     dialogs/XrefsDialog.ui \
     dialogs/NewfileDialog.ui \
     dialogs/InitialOptionsDialog.ui \
@@ -552,6 +557,7 @@ FORMS    += \
     dialogs/VersionInfoDialog.ui \
     widgets/ZignaturesWidget.ui \
     dialogs/AsyncTaskDialog.ui \
+    dialogs/R2TaskDialog.ui \
     widgets/StackWidget.ui \
     widgets/RegistersWidget.ui \
     widgets/ThreadsWidget.ui \

src/common/R2Task.h

@@ -15,6 +15,8 @@ private:
     void taskFinished();
 
 public:
+    using Ptr = QSharedPointer<R2Task>;
+
     explicit R2Task(const QString &cmd, bool transient = true);
     ~R2Task();
 
@@ -30,4 +32,4 @@ signals:
     void finished();
 };
 
-#endif // R2TASK_H
+#endif // R2TASK_H

src/core/Cutter.cpp

@@ -1228,6 +1228,59 @@ void CutterCore::startEmulation()
     emit debugTaskStateChanged();
 }
 
+void CutterCore::attachRemote(const QString &uri)
+{
+    if (!currentlyDebugging) {
+        offsetPriorDebugging = getOffset();
+    }
+
+    // connect to a debugger with the given plugin
+    asyncCmd("o-*; e cfg.debug = true; o+ " + uri, debugTask);
+    emit debugTaskStateChanged();
+
+    connect(debugTask.data(), &R2Task::finished, this, [this, uri] () {
+        if (debugTaskDialog) {
+            delete debugTaskDialog;
+        }
+        debugTask.clear();
+        // Check if we actually connected
+        bool connected = false;
+        QJsonArray openFilesArray = getOpenedFiles();
+        for (QJsonValue value : openFilesArray) {
+            QJsonObject openFile = value.toObject();
+            QString fileUri= openFile["uri"].toString();
+            if (!fileUri.compare(uri)) {
+                connected = true;
+            }
+        }
+        QString programCounterValue = cmd("dr?`drn PC`").trimmed();
+        seekAndShow(programCounterValue);
+        if (!connected) {
+            emit attachedRemote(false);
+            emit debugTaskStateChanged();
+            return;
+        }
+
+        emit registersChanged();
+        if (!currentlyDebugging || !currentlyEmulating) {
+            // prevent register flags from appearing during debug/emul
+            setConfig("asm.flags", false);
+            currentlyDebugging = true;
+            emit flagsChanged();
+            emit changeDebugView();
+        }
+
+        emit attachedRemote(true);
+        emit debugTaskStateChanged();
+    });
+
+    debugTaskDialog = new R2TaskDialog(debugTask);
+    debugTaskDialog->setBreakOnClose(true);
+    debugTaskDialog->setAttribute(Qt::WA_DeleteOnClose);
+    debugTaskDialog->setDesc("Connecting to: " + uri);
+    debugTaskDialog->show();
+}
+
 void CutterCore::attachDebug(int pid)
 {
     if (!currentlyDebugging) {

src/core/Cutter.h

@@ -19,10 +19,12 @@ class BasicInstructionHighlighter;
 class CutterCore;
 class Decompiler;
 class R2Task;
+class R2TaskDialog;
 
 #include "plugins/CutterPlugin.h"
 #include "common/BasicBlockHighlighter.h"
 #include "common/R2Task.h"
+#include "dialogs/R2TaskDialog.h"
 
 #define Core() (CutterCore::instance())
 
@@ -267,6 +269,12 @@ public:
     QJsonDocument getBacktrace();
     void startDebug();
     void startEmulation();
+    /**
+     * @brief attach to a remote debugger
+     * @param uri remote debugger uri
+     * @note attachedRemote(bool) signals the result
+     */
+    void attachRemote(const QString &uri);
     void attachDebug(int pid);
     void stopDebug();
     void suspendDebug();
@@ -473,6 +481,8 @@ signals:
     void classRenamed(const QString &oldName, const QString &newName);
     void classAttrsChanged(const QString &cls);
 
+    void attachedRemote(bool successfully);
+
     void projectSaved(bool successfully, const QString &name);
 
     /**
@@ -527,6 +537,7 @@ private:
     BasicInstructionHighlighter biHighlighter;
 
     QSharedPointer<R2Task> debugTask;
+    R2TaskDialog *debugTaskDialog;
 };
 
 class RCoreLocked

src/dialogs/R2TaskDialog.cpp

@@ -0,0 +1,72 @@
+#include "R2TaskDialog.h"
+#include "common/R2Task.h"
+
+#include <QCloseEvent>
+
+#include "ui_R2TaskDialog.h"
+
+R2TaskDialog::R2TaskDialog(R2Task::Ptr task, QWidget *parent)
+    : QDialog(parent),
+      ui(new Ui::R2TaskDialog),
+      task(task)
+{
+    ui->setupUi(this);
+
+    connect(task.data(), &R2Task::finished, this, [this]() {
+        close();
+    });
+
+    connect(&timer, SIGNAL(timeout()), this, SLOT(updateProgressTimer()));
+    timer.setInterval(1000);
+    timer.setSingleShot(false);
+    timer.start();
+
+    elapsedTimer.start();
+    updateProgressTimer();
+}
+
+R2TaskDialog::~R2TaskDialog()
+{
+}
+
+void R2TaskDialog::updateProgressTimer()
+{
+    int secondsElapsed = elapsedTimer.elapsed() / 1000;
+    int minutesElapsed = secondsElapsed / 60;
+    int hoursElapsed = minutesElapsed / 60;
+
+    QString label = tr("Running for") + " ";
+    if (hoursElapsed) {
+        label += tr("%n hour", "%n hours", hoursElapsed);
+        label += " ";
+    }
+    if (minutesElapsed) {
+        label += tr("%n minute", "%n minutes", minutesElapsed % 60);
+        label += " ";
+    }
+    label += tr("%n seconds", "%n second", secondsElapsed % 60);
+    ui->timeLabel->setText(label);
+}
+
+void R2TaskDialog::setDesc(const QString &label)
+{
+    ui->descLabel->setText(label);
+}
+
+void R2TaskDialog::closeEvent(QCloseEvent *event)
+{
+    if (breakOnClose) {
+        task->breakTask();
+        setDesc("Attempting to stop the task...");
+        event->ignore();
+    } else {
+        QWidget::closeEvent(event);
+    }
+}
+
+void R2TaskDialog::reject()
+{
+    task->breakTask();
+    setDesc("Attempting to stop the task...");
+
+}

src/dialogs/R2TaskDialog.h

@@ -0,0 +1,49 @@
+#ifndef R2TASKDIALOG_H
+#define R2TASKDIALOG_H
+
+#include <memory>
+
+#include <QDialog>
+#include <QTimer>
+#include <QElapsedTimer>
+
+#include "common/R2Task.h"
+
+class R2Task;
+namespace Ui {
+class R2TaskDialog;
+}
+
+class R2TaskDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    using Ptr = QSharedPointer<R2Task>;
+    R2TaskDialog(Ptr task, QWidget *parent = nullptr);
+    ~R2TaskDialog();
+
+    void setBreakOnClose(bool v)        { breakOnClose = v; }
+    bool getBreakOnClose()              { return breakOnClose; }
+    void setDesc(const QString &label);
+
+public slots:
+    void reject() override;
+
+private slots:
+    void updateProgressTimer();
+
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
+private:
+    std::unique_ptr<Ui::R2TaskDialog> ui;
+    QSharedPointer<R2Task> task;
+
+    QTimer timer;
+    QElapsedTimer elapsedTimer;
+
+    bool breakOnClose = false;
+};
+
+#endif //R2TASKDIALOG_H

src/dialogs/R2TaskDialog.ui

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>R2TaskDialog</class>
+ <widget class="QDialog" name="R2TaskDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>87</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>R2 Task</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="descLabel">
+     <property name="text">
+      <string>R2 task in progress..</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="timeLabel">
+     <property name="text">
+      <string>Time</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QProgressBar" name="progressBar">
+     <property name="maximum">
+      <number>0</number>
+     </property>
+     <property name="textVisible">
+      <bool>false</bool>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>R2TaskDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>R2TaskDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/dialogs/RemoteDebugDialog.cpp

@@ -0,0 +1,188 @@
+#include "RemoteDebugDialog.h"
+#include "ui_RemoteDebugDialog.h"
+
+#include <QHostAddress>
+#include <QFileInfo>
+#include <QMessageBox>
+
+#define GDBSERVER "GDB"
+#define WINDBGPIPE "WinDbg - Pipe"
+#define WINDBG_URI_PREFIX "windbg"
+#define GDB_URI_PREFIX "gdb"
+#define DEFAULT_INDEX (GDBSERVER)
+
+RemoteDebugDialog::RemoteDebugDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::RemoteDebugDialog)
+{
+    ui->setupUi(this);
+    setWindowFlags(windowFlags() & (~Qt::WindowContextHelpButtonHint));
+
+    // Set a default selection
+    ui->debuggerCombo->setCurrentIndex(ui->debuggerCombo->findText(DEFAULT_INDEX));
+    onIndexChange();
+
+    connect(ui->debuggerCombo,
+            static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+            this, &RemoteDebugDialog::onIndexChange);
+}
+
+RemoteDebugDialog::~RemoteDebugDialog() {}
+
+bool RemoteDebugDialog::validate()
+{
+    QString debugger = getDebugger();
+
+    if (debugger == GDBSERVER) {
+        if (!validateIp()) {
+            return false;
+        }
+        if (!validatePort()) {
+            return false;
+        }
+    } else if (debugger == WINDBGPIPE) {
+        if (!validatePath()) {
+            return false;
+        }
+    } else {
+        QMessageBox msgBox;
+        msgBox.setText(tr("Invalid debugger"));
+        msgBox.exec();
+        return false;
+    }
+
+    return true;
+}
+
+bool RemoteDebugDialog::validateIp()
+{
+    QMessageBox msgBox;
+
+    QString ip = getIp();
+    if (QHostAddress(ip).isNull()) {
+        msgBox.setText(tr("Invalid IP address"));
+        msgBox.exec();
+        return false;
+    }
+    return true;
+}
+
+bool RemoteDebugDialog::validatePath()
+{
+    QMessageBox msgBox;
+
+    QString path = getPath();
+    if (!QFileInfo(path).exists()) {
+        msgBox.setText(tr("Path does not exist"));
+        msgBox.exec();
+        return false;
+    }
+    return true;
+}
+
+bool RemoteDebugDialog::validatePort()
+{
+    QMessageBox msgBox;
+
+    int port = getPort();
+    if (port < 1 || port > 65535) {
+        msgBox.setText(tr("Invalid port"));
+        msgBox.exec();
+        return false;
+    }
+    return true;
+}
+
+void RemoteDebugDialog::onIndexChange()
+{
+    QString debugger = getDebugger();
+    if (debugger == GDBSERVER) {
+        activateGdb();
+    } else if (debugger == WINDBGPIPE) {
+        activateWinDbgPipe();
+    }
+}
+
+void RemoteDebugDialog::activateGdb()
+{
+    ui->ipEdit->setVisible(true);
+    ui->portEdit->setVisible(true);
+    ui->ipText->setVisible(true);
+    ui->portText->setVisible(true);
+    ui->pathEdit->setVisible(false);
+    ui->pathText->setVisible(false);
+}
+
+void RemoteDebugDialog::activateWinDbgPipe()
+{
+    ui->ipEdit->setVisible(false);
+    ui->portEdit->setVisible(false);
+    ui->ipText->setVisible(false);
+    ui->portText->setVisible(false);
+    ui->pathEdit->setVisible(true);
+    ui->pathText->setVisible(true);
+}
+
+void RemoteDebugDialog::on_buttonBox_accepted()
+{
+}
+
+void RemoteDebugDialog::on_buttonBox_rejected()
+{
+    close();
+}
+
+void RemoteDebugDialog::setIp(QString ip)
+{
+    ui->ipEdit->setText(ip);
+    ui->ipEdit->selectAll();
+}
+
+void RemoteDebugDialog::setPath(QString path)
+{
+    ui->pathEdit->setText(path);
+    ui->pathEdit->selectAll();
+}
+
+void RemoteDebugDialog::setPort(QString port)
+{
+    ui->portEdit->setText(port);
+    ui->portEdit->selectAll();
+}
+
+void RemoteDebugDialog::setDebugger(QString debugger)
+{
+    ui->debuggerCombo->setCurrentIndex(ui->debuggerCombo->findText(debugger));
+}
+
+QString RemoteDebugDialog::getUri() const
+{
+    QString debugger = getDebugger();
+    if (debugger == WINDBGPIPE) {
+        return QString("%1://%2").arg(WINDBG_URI_PREFIX, getPath());
+    } else if (debugger == GDBSERVER) {
+        return QString("%1://%2:%3").arg(GDB_URI_PREFIX, getIp(), QString::number(getPort()));
+    }
+
+    return NULL;
+}
+
+QString RemoteDebugDialog::getIp() const
+{
+    return ui->ipEdit->text();
+}
+
+QString RemoteDebugDialog::getPath() const
+{
+    return ui->pathEdit->text();
+}
+
+int RemoteDebugDialog::getPort() const
+{
+    return ui->portEdit->text().toInt();
+}
+
+QString RemoteDebugDialog::getDebugger() const
+{
+    return ui->debuggerCombo->currentText();
+}

src/dialogs/RemoteDebugDialog.h

@@ -0,0 +1,48 @@
+#ifndef REMOTEDEBUGDIALOG_H
+#define REMOTEDEBUGDIALOG_H
+
+#include <QDialog>
+#include <memory>
+
+namespace Ui {
+class RemoteDebugDialog;
+}
+
+/**
+ * @brief Dialog for connecting to remote debuggers
+ */
+class RemoteDebugDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit RemoteDebugDialog(QWidget *parent = nullptr);
+    ~RemoteDebugDialog();
+
+    void setIp(QString ip);
+    void setPort(QString port);
+    void setPath(QString path);
+    void setDebugger(QString debugger);
+    QString getUri() const;
+    QString getIp() const;
+    int getPort() const;
+    QString getPath() const;
+    QString getDebugger() const;
+    bool validate();
+
+private slots:
+    void on_buttonBox_accepted();
+    void on_buttonBox_rejected();
+    void onIndexChange();
+
+private:
+    void activateGdb();
+    void activateWinDbgPipe();
+    bool validateIp();
+    bool validatePort();
+    bool validatePath();
+
+    std::unique_ptr<Ui::RemoteDebugDialog> ui;
+};
+
+#endif // REMOTE_DEBUG_DIALOG

src/dialogs/RemoteDebugDialog.ui

@@ -0,0 +1,197 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>RemoteDebugDialog</class>
+ <widget class="QDialog" name="RemoteDebugDialog">
+  <property name="windowModality">
+   <enum>Qt::NonModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>320</width>
+    <height>170</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Remote debugging configuration</string>
+  </property>
+  <widget class="QWidget" name="gridLayoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>300</width>
+     <height>110</height>
+    </rect>
+   </property>
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QLabel" name="debugText">
+      <property name="text">
+       <string>Debugger:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="1">
+     <widget class="QComboBox" name="debuggerCombo">
+      <item>
+       <property name="text">
+        <string>GDB</string>
+       </property>
+      </item>
+      <item>
+       <property name="text">
+        <string>WinDbg - Pipe</string>
+       </property>
+      </item>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QLabel" name="ipText">
+      <property name="text">
+       <string>IP:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="1">
+     <widget class="QLineEdit" name="ipEdit">
+      <property name="maximumSize">
+       <size>
+        <width>382</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="inputMask">
+       <string notr="true"/>
+      </property>
+      <property name="text">
+       <string notr="true"/>
+      </property>
+      <property name="frame">
+       <bool>false</bool>
+      </property>
+      <property name="placeholderText">
+       <string notr="true"/>
+      </property>
+     </widget>
+    </item>
+    <item row="2" column="0">
+     <widget class="QLabel" name="portText">
+      <property name="text">
+       <string>Port:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="2" column="1">
+     <widget class="QLineEdit" name="portEdit">
+      <property name="maximumSize">
+       <size>
+        <width>382</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="inputMask">
+       <string notr="true"/>
+      </property>
+      <property name="text">
+       <string notr="true"/>
+      </property>
+      <property name="frame">
+       <bool>false</bool>
+      </property>
+      <property name="placeholderText">
+       <string notr="true"/>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QLabel" name="pathText">
+      <property name="text">
+       <string>Path:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="1">
+     <widget class="QLineEdit" name="pathEdit">
+      <property name="maximumSize">
+       <size>
+        <width>382</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="inputMask">
+       <string notr="true"/>
+      </property>
+      <property name="text">
+       <string notr="true"/>
+      </property>
+      <property name="frame">
+       <bool>false</bool>
+      </property>
+      <property name="placeholderText">
+       <string notr="true"/>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QWidget" name="verticalLayoutWidget">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>130</y>
+     <width>301</width>
+     <height>35</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QDialogButtonBox" name="buttonBox">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <property name="standardButtons">
+       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>RemoteDebugDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>234</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>RemoteDebugDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>240</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>254</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/img/icons/play_light_remote.svg

@@ -0,0 +1,5 @@
+<!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>
+<svg style="enable-background:new 0 0 24 32" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" height="32px" width="24px" version="1.1" y="0px" x="0px" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 24 32">
+	<polygon points="0 0 24 16 0 32" fill="#78de82"/>
+  <text  x="15" y="10" font-family="Helvetica, Arial, sans-serif" font-size="13" stroke-width="2" stroke="#aaacaf" fill="#aaacaf" >R</text>
+</svg>

src/resources.qrc

@@ -24,6 +24,7 @@
         <file>img/icons/play_light_debug.svg</file>
         <file>img/icons/play_light_emul.svg</file>
         <file>img/icons/play_light_attach.svg</file>
+        <file>img/icons/play_light_remote.svg</file>
         <file>img/icons/media-stop_light.svg</file>
         <file>img/icons/media-suspend_light.svg</file>
         <file>img/icons/media-skip-forward_light.svg</file>

src/widgets/DebugActions.cpp

@@ -20,6 +20,7 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
     QIcon startDebugIcon = QIcon(":/img/icons/play_light_debug.svg");
     QIcon startEmulIcon = QIcon(":/img/icons/play_light_emul.svg");
     QIcon startAttachIcon = QIcon(":/img/icons/play_light_attach.svg");
+    QIcon startRemoteIcon = QIcon(":/img/icons/play_light_remote.svg");
     QIcon stopIcon = QIcon(":/img/icons/media-stop_light.svg");
     QIcon continueUntilMainIcon = QIcon(":/img/icons/continue_until_main.svg");
     QIcon continueUntilCallIcon = QIcon(":/img/icons/continue_until_call.svg");
@@ -35,6 +36,7 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
     QString startDebugLabel = tr("Start debug");
     QString startEmulLabel = tr("Start emulation");
     QString startAttachLabel = tr("Attach to process");
+    QString startRemoteLabel = tr("Connect to a remote debugger");
     QString stopDebugLabel = tr("Stop debug");
     QString stopEmulLabel = tr("Stop emulation");
     QString restartDebugLabel = tr("Restart program");
@@ -53,6 +55,7 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
     actionStart->setShortcut(QKeySequence(Qt::Key_F9));
     actionStartEmul = new QAction(startEmulIcon, startEmulLabel, this);
     actionAttach = new QAction(startAttachIcon, startAttachLabel, this);
+    actionStartRemote = new QAction(startRemoteIcon, startRemoteLabel, this);
     actionStop = new QAction(stopIcon, stopDebugLabel, this);
     actionContinue = new QAction(continueIcon, continueLabel, this);
     actionContinue->setShortcut(QKeySequence(Qt::Key_F5));
@@ -75,8 +78,8 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
     startMenu->addAction(actionStart);
     startMenu->addAction(actionStartEmul);
     startMenu->addAction(actionAttach);
+    startMenu->addAction(actionStartRemote);
     startButton->setDefaultAction(actionStart);
-    // startButton->setDefaultAction(actionStartEmul);
     startButton->setMenu(startMenu);
 
     continueUntilButton = new QToolButton;
@@ -105,21 +108,28 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
 
     // Toggle all buttons except restart, suspend(=continue) and stop since those are
     // necessary to avoid staying stuck
-    toggleActions = { actionStep, actionStepOver, actionStepOut, actionContinueUntilMain,
+    toggleActions = {actionStep, actionStepOver, actionStepOut, actionContinueUntilMain,
         actionContinueUntilCall, actionContinueUntilSyscall};
+    toggleConnectionActions = {actionAttach, actionStart, actionStartRemote, actionStartEmul};
 
     connect(Core(), &CutterCore::debugTaskStateChanged, this, [ = ]() {
-        bool disableToolbar = Core()->isDebugTaskInProgress() || !Core()->currentlyDebugging;
+        bool disableToolbar = Core()->isDebugTaskInProgress();
-        for (QAction *a : toggleActions) {
+        if (Core()->currentlyDebugging) {
-            a->setDisabled(disableToolbar);
+            for (QAction *a : toggleActions) {
-        }
+                a->setDisabled(disableToolbar);
-        // Suspend should only be available when other icons are disabled
+            }
-        if (disableToolbar) {
+            // Suspend should only be available when other icons are disabled
-            actionContinue->setText(suspendLabel);
+            if (disableToolbar) {
-            actionContinue->setIcon(suspendIcon);
+                actionContinue->setText(suspendLabel);
+                actionContinue->setIcon(suspendIcon);
+            } else {
+                actionContinue->setText(continueLabel);
+                actionContinue->setIcon(continueIcon);
+            }
         } else {
-            actionContinue->setText(continueLabel);
+            for (QAction *a : toggleConnectionActions) {
-            actionContinue->setIcon(continueIcon);
+                a->setDisabled(disableToolbar);
+            }
         }
     });
 
@@ -128,6 +138,7 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
         actionStart->setVisible(true);
         actionStartEmul->setVisible(true);
         actionAttach->setVisible(true);
+        actionStartRemote->setVisible(true);
         actionStop->setText(stopDebugLabel);
         actionStart->setText(startDebugLabel);
         actionStart->setIcon(startDebugIcon);
@@ -149,6 +160,7 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
         }
         setAllActionsVisible(true);
         actionAttach->setVisible(false);
+        actionStartRemote->setVisible(false);
         actionStartEmul->setVisible(false);
         actionStart->setText(restartDebugLabel);
         actionStart->setIcon(restartIcon);
@@ -157,11 +169,14 @@ DebugActions::DebugActions(QToolBar *toolBar, MainWindow *main) :
     });
 
     connect(actionAttach, &QAction::triggered, this, &DebugActions::attachProcessDialog);
+    connect(actionStartRemote, &QAction::triggered, this, &DebugActions::attachRemoteDialog);
+    connect(Core(), &CutterCore::attachedRemote, this, &DebugActions::onAttachedRemoteDebugger);
     connect(actionStartEmul, &QAction::triggered, Core(), &CutterCore::startEmulation);
     connect(actionStartEmul, &QAction::triggered, [ = ]() {
         setAllActionsVisible(true);
         actionStart->setVisible(false);
         actionAttach->setVisible(false);
+        actionStartRemote->setVisible(false);
         actionContinueUntilMain->setVisible(false);
         actionStepOut->setVisible(false);
         continueUntilButton->setDefaultAction(actionContinueUntilSyscall);
@@ -200,6 +215,49 @@ void DebugActions::continueUntilMain()
     Core()->continueUntilDebug(mainAddr);
 }
 
+void DebugActions::attachRemoteDebugger()
+{
+    QString stopAttachLabel = tr("Detach from process");
+    // Hide unwanted buttons
+    setAllActionsVisible(true);
+    actionStart->setVisible(false);
+    actionStartRemote->setVisible(false);
+    actionStartEmul->setVisible(false);
+    actionStop->setText(stopAttachLabel);
+}
+
+void DebugActions::onAttachedRemoteDebugger(bool successfully) {
+    if (!successfully) {
+        QMessageBox msgBox;
+        msgBox.setText(tr("Error connecting."));
+        msgBox.exec();
+        attachRemoteDialog();
+    } else {
+        delete remoteDialog;
+        attachRemoteDebugger();
+    }
+}
+
+void DebugActions::attachRemoteDialog()
+{
+    if (!remoteDialog) {
+        remoteDialog = new RemoteDebugDialog(main);
+    }
+    QMessageBox msgBox;
+    bool success = false;
+    while (!success) {
+        success = true;
+        if (remoteDialog->exec()) {
+            if (!remoteDialog->validate()) {
+                success = false;
+                continue;
+            }
+
+            Core()->attachRemote(remoteDialog->getUri());
+        }
+    }
+}
+
 void DebugActions::attachProcessDialog()
 {
     AttachProcDialog dialog(main);
@@ -226,6 +284,7 @@ void DebugActions::attachProcess(int pid)
     // hide unwanted buttons
     setAllActionsVisible(true);
     actionStart->setVisible(false);
+    actionStartRemote->setVisible(false);
     actionStartEmul->setVisible(false);
     actionStop->setText(stopAttachLabel);
     // attach

src/widgets/DebugActions.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "core/Cutter.h"
+#include "dialogs/RemoteDebugDialog.h"
 
 #include <QAction>
 
@@ -18,6 +19,7 @@ public:
     void addToToolBar(QToolBar *toolBar);
 
     QAction *actionStart;
+    QAction *actionStartRemote;
     QAction *actionStartEmul;
     QAction *actionAttach;
     QAction *actionContinue;
@@ -29,7 +31,7 @@ public:
     QAction *actionStepOut;
     QAction *actionStop;
     QAction *actionAllContinues;
-    
+
     // Continue and suspend interchange during runtime
     QIcon continueIcon;
     QIcon suspendIcon;
@@ -41,14 +43,19 @@ private:
      * @brief buttons that will be disabled/enabled on (disable/enable)DebugToolbar
      */
     QList<QAction *> toggleActions;
-    MainWindow *main;
+    QList<QAction *> toggleConnectionActions;
     QList<QAction *> allActions;
     QToolButton *continueUntilButton;
+    RemoteDebugDialog *remoteDialog = nullptr;
+    MainWindow *main;
 
 private slots:
     void continueUntilMain();
     void attachProcessDialog();
     void attachProcess(int pid);
+    void attachRemoteDialog();
+    void attachRemoteDebugger();
+    void onAttachedRemoteDebugger(bool successfully);
     void setAllActionsVisible(bool visible);
     void setButtonVisibleIfMainExists();
 };