HackStudio: Reorganize debugger-related files

The debugger's files are now placed under HackStudio/Debugger

DevTools/HackStudio/Debugger/Debugger.h

@@ -0,0 +1,97 @@
+
+/*
+ * Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include "BreakpointCallback.h"
+#include <AK/Function.h>
+#include <AK/Vector.h>
+#include <LibDebug/DebugSession.h>
+#include <LibThread/Lock.h>
+#include <LibThread/Thread.h>
+
+class Debugger {
+public:
+    static Debugger& the();
+
+    enum class HasControlPassedToUser {
+        No,
+        Yes,
+    };
+
+    static void initialize(
+        Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
+        Function<void()> on_continue_callback,
+        Function<void()> on_exit_callback);
+
+    static bool is_initialized();
+
+    static void on_breakpoint_change(const String& file, size_t line, BreakpointChange change_type);
+
+    void set_executable_path(const String& path) { m_executable_path = path; }
+
+    DebugSession* session() { return m_debug_session.ptr(); }
+
+    // Thread entry point
+    static int start_static();
+
+    pthread_mutex_t* continue_mutex() { return &m_continue_mutex; }
+    pthread_cond_t* continue_cond() { return &m_continue_cond; }
+
+    enum class ContinueType {
+        Continue,
+        SourceSingleStep,
+    };
+
+    void set_continue_type(ContinueType type) { m_continue_type = type; }
+    void reset_breakpoints() { m_breakpoints.clear(); }
+
+private:
+    explicit Debugger(
+        Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
+        Function<void()> on_continue_callback,
+        Function<void()> on_exit_callback);
+
+    static DebugInfo::SourcePosition create_source_position(const String& file, size_t line);
+
+    void start();
+    int debugger_loop();
+
+    OwnPtr<DebugSession> m_debug_session;
+
+    pthread_mutex_t m_continue_mutex {};
+    pthread_cond_t m_continue_cond {};
+
+    Vector<DebugInfo::SourcePosition> m_breakpoints;
+    String m_executable_path;
+
+    Function<HasControlPassedToUser(const PtraceRegisters&)> m_on_stopped_callback;
+    Function<void()> m_on_continue_callback;
+    Function<void()> m_on_exit_callback;
+
+    ContinueType m_continue_type { ContinueType::Continue };
+};