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DevTools: Move to Userland/DevTools/
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13d7c09125
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125 changed files with 2 additions and 2 deletions
139
Userland/DevTools/HackStudio/Debugger/Debugger.h
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139
Userland/DevTools/HackStudio/Debugger/Debugger.h
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/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "BreakpointCallback.h"
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#include <AK/Function.h>
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#include <AK/Vector.h>
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#include <LibDebug/DebugSession.h>
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#include <LibThread/Lock.h>
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#include <LibThread/Thread.h>
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namespace HackStudio {
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class Debugger {
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public:
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static Debugger& the();
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enum class HasControlPassedToUser {
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No,
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Yes,
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};
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static void initialize(
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String source_root,
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Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
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Function<void()> on_continue_callback,
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Function<void()> on_exit_callback);
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static bool is_initialized();
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static void on_breakpoint_change(const String& file, size_t line, BreakpointChange change_type);
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void set_executable_path(const String& path) { m_executable_path = path; }
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Debug::DebugSession* session() { return m_debug_session.ptr(); }
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// Thread entry point
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static int start_static();
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pthread_mutex_t* continue_mutex() { return &m_ui_action_mutex; }
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pthread_cond_t* continue_cond() { return &m_ui_action_cond; }
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enum class DebuggerAction {
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Continue,
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SourceSingleStep,
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SourceStepOut,
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SourceStepOver,
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Exit,
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};
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void set_requested_debugger_action(DebuggerAction);
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void reset_breakpoints() { m_breakpoints.clear(); }
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private:
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class DebuggingState {
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public:
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enum State {
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Normal, // Continue normally until we hit a breakpoint / program terminates
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SingleStepping,
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SteppingOut,
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SteppingOver,
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};
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State get() const { return m_state; }
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void set_normal();
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void set_single_stepping(Debug::DebugInfo::SourcePosition original_source_position);
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void set_stepping_out() { m_state = State::SteppingOut; }
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void set_stepping_over() { m_state = State::SteppingOver; }
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bool should_stop_single_stepping(const Debug::DebugInfo::SourcePosition& current_source_position) const;
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void clear_temporary_breakpoints();
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void add_temporary_breakpoint(u32 address);
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const Vector<u32>& temporary_breakpoints() const { return m_addresses_of_temporary_breakpoints; }
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private:
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State m_state { Normal };
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Optional<Debug::DebugInfo::SourcePosition> m_original_source_position; // The source position at which we started the current single step
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Vector<u32> m_addresses_of_temporary_breakpoints;
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};
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explicit Debugger(
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String source_root,
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Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
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Function<void()> on_continue_callback,
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Function<void()> on_exit_callback);
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static Debug::DebugInfo::SourcePosition create_source_position(const String& file, size_t line);
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void start();
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int debugger_loop();
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void remove_temporary_breakpoints();
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void do_step_out(const PtraceRegisters&);
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void do_step_over(const PtraceRegisters&);
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void insert_temporary_breakpoint(FlatPtr address);
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void insert_temporary_breakpoint_at_return_address(const PtraceRegisters&);
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OwnPtr<Debug::DebugSession> m_debug_session;
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String m_source_root;
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DebuggingState m_state;
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pthread_mutex_t m_ui_action_mutex {};
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pthread_cond_t m_ui_action_cond {};
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DebuggerAction m_requested_debugger_action { DebuggerAction::Continue };
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Vector<Debug::DebugInfo::SourcePosition> m_breakpoints;
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String m_executable_path;
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Function<HasControlPassedToUser(const PtraceRegisters&)> m_on_stopped_callback;
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Function<void()> m_on_continue_callback;
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Function<void()> m_on_exit_callback;
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};
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}
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