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HackStudio: Reorganize debugger-related files

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The debugger's files are now placed under HackStudio/Debugger
This commit is contained in:
Itamar 2020-05-08 13:32:55 +03:00 • committed by Andreas Kling
parent ce36071447
commit b9f0f402f4
11 changed files with 127 additions and 62 deletions
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37
DevTools/HackStudio/Debugger/BreakpointCallback.h Normal file
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/*
* 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 <AK/Function.h>
#include <AK/String.h>
#include <AK/Types.h>
enum class BreakpointChange {
Added,
Removed,
};
typedef Function<void(const String& file, size_t line, BreakpointChange)> BreakpointChangeCallback;

52
DevTools/HackStudio/Debugger/DebugInfoWidget.cpp Normal file
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/*
* 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.
*/
#include "DebugInfoWidget.h"
#include "Debugger.h"
#include "VariablesModel.h"
#include <AK/StringBuilder.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Model.h>
#include <LibGUI/TableView.h>
#include <LibGUI/TreeView.h>
DebugInfoWidget::DebugInfoWidget()
{
set_layout<GUI::HorizontalBoxLayout>();
m_info_view = add<GUI::TreeView>();
m_backtrace_view = add<GUI::TableView>();
}
void DebugInfoWidget::update_state(const PtraceRegisters& regs)
{
auto model = VariablesModel::create(regs);
m_info_view->set_model(model);
}
void DebugInfoWidget::program_stopped()
{
m_info_view->set_model({});
}

48
DevTools/HackStudio/Debugger/DebugInfoWidget.h Normal file
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/*
* 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 "Debugger.h"
#include <AK/NonnullOwnPtr.h>
#include <LibGUI/Model.h>
#include <LibGUI/Widget.h>
#include <sys/arch/i386/regs.h>
class DebugInfoWidget final : public GUI::Widget {
C_OBJECT(DebugInfoWidget)
public:
virtual ~DebugInfoWidget() override {}
void update_state(const PtraceRegisters&);
void program_stopped();
private:
explicit DebugInfoWidget();
RefPtr<GUI::TreeView> m_info_view;
RefPtr<GUI::TableView> m_backtrace_view;
};

179
DevTools/HackStudio/Debugger/Debugger.cpp Normal file
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/*
* 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.
*/
#include "Debugger.h"
static Debugger* s_the;
Debugger& Debugger::the()
{
ASSERT(s_the);
return *s_the;
}
void Debugger::initialize(
Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
Function<void()> on_continue_callback,
Function<void()> on_exit_callback)
{
s_the = new Debugger(move(on_stop_callback), move(on_continue_callback), move(on_exit_callback));
}
bool Debugger::is_initialized()
{
return s_the;
}
Debugger::Debugger(
Function<HasControlPassedToUser(const PtraceRegisters&)> on_stop_callback,
Function<void()> on_continue_callback,
Function<void()> on_exit_callback)
: m_on_stopped_callback(move(on_stop_callback))
, m_on_continue_callback(move(on_continue_callback))
, m_on_exit_callback(move(on_exit_callback))
{
pthread_mutex_init(&m_continue_mutex, nullptr);
pthread_cond_init(&m_continue_cond, nullptr);
}
void Debugger::on_breakpoint_change(const String& file, size_t line, BreakpointChange change_type)
{
auto position = create_source_position(file, line);
if (change_type == BreakpointChange::Added) {
Debugger::the().m_breakpoints.append(position);
} else {
Debugger::the().m_breakpoints.remove_all_matching([&](DebugInfo::SourcePosition val) { return val == position; });
}
auto session = Debugger::the().session();
if (!session)
return;
auto address = session->debug_info().get_instruction_from_source(position.file_path, position.line_number);
if (!address.has_value())
return;
if (change_type == BreakpointChange::Added) {
bool success = session->insert_breakpoint(reinterpret_cast<void*>(address.value()));
ASSERT(success);
} else {
bool success = session->remove_breakpoint(reinterpret_cast<void*>(address.value()));
ASSERT(success);
}
}
DebugInfo::SourcePosition Debugger::create_source_position(const String& file, size_t line)
{
return { String::format("./%s", file.characters()), line + 1 };
}
int Debugger::start_static()
{
Debugger::the().start();
return 0;
}
void Debugger::start()
{
m_debug_session = DebugSession::exec_and_attach(m_executable_path);
ASSERT(!!m_debug_session);
for (const auto& breakpoint : m_breakpoints) {
dbg() << "insertig breakpoint at: " << breakpoint.file_path << ":" << breakpoint.line_number;
auto address = m_debug_session->debug_info().get_instruction_from_source(breakpoint.file_path, breakpoint.line_number);
if (address.has_value()) {
bool success = m_debug_session->insert_breakpoint(reinterpret_cast<void*>(address.value()));
ASSERT(success);
} else {
dbg() << "couldn't insert breakpoint";
}
}
debugger_loop();
}
int Debugger::debugger_loop()
{
bool in_single_step_mode = false;
Vector<void*> temporary_breakpoints;
m_debug_session->run([&](DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {
if (reason == DebugSession::DebugBreakReason::Exited) {
dbg() << "Program exited";
m_on_exit_callback();
return DebugSession::DebugDecision::Detach;
}
ASSERT(optional_regs.has_value());
const PtraceRegisters& regs = optional_regs.value();
if (in_single_step_mode) {
for (auto address : temporary_breakpoints) {
m_debug_session->remove_breakpoint(address);
}
temporary_breakpoints.clear();
in_single_step_mode = false;
}
auto control_passed_to_user = m_on_stopped_callback(regs);
if (control_passed_to_user == HasControlPassedToUser::Yes) {
pthread_mutex_lock(&m_continue_mutex);
pthread_cond_wait(&m_continue_cond, &m_continue_mutex);
pthread_mutex_unlock(&m_continue_mutex);
m_on_continue_callback();
} else {
m_continue_type = ContinueType::Continue;
}
if (m_continue_type == ContinueType::Continue) {
return DebugSession::DebugDecision::Continue;
}
if (m_continue_type == ContinueType::SourceSingleStep) {
// A possible method for source level single stepping is to single step
// in assembly level, until the current instruction's source position has changed.
// However, since we do not currently generate debug symbols for library code,
// we may have to single-step over lots of library code instructions until we get back to our code,
// which is very slow.
// So the current method is to insert a temporary breakpoint at every known statement in our source code,
// continue execution, and remove the temporary breakpoints once we hit the first breakpoint.
m_debug_session->debug_info().for_each_source_position([&](DebugInfo::SourcePosition position) {
auto address = (void*)position.address_of_first_statement;
if ((u32)address != regs.eip && !m_debug_session->breakpoint_exists(address)) {
m_debug_session->insert_breakpoint(address);
temporary_breakpoints.append(address);
}
});
in_single_step_mode = true;
return DebugSession::DebugDecision::Continue;
}
ASSERT_NOT_REACHED();
});
m_debug_session.clear();
return 0;
}

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DevTools/HackStudio/Debugger/Debugger.h Normal file
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/*
* 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 };
};

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DevTools/HackStudio/Debugger/VariablesModel.cpp Normal file
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/*
* 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.
*/
#include "VariablesModel.h"
GUI::ModelIndex VariablesModel::index(int row, int column, const GUI::ModelIndex& parent_index) const
{
if (!parent_index.is_valid())
return create_index(row, column, &m_variables[row]);
auto* parent = static_cast<const DebugInfo::VariableInfo*>(parent_index.internal_data());
auto* child = &parent->members[row];
return create_index(row, column, child);
}
GUI::ModelIndex VariablesModel::parent_index(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return {};
auto* child = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
auto* parent = child->parent;
if (parent == nullptr)
return {};
if (parent->parent == nullptr) {
for (size_t row = 0; row < m_variables.size(); row++)
if (m_variables.ptr_at(row).ptr() == parent)
return create_index(row, 0, parent);
ASSERT_NOT_REACHED();
}
for (size_t row = 0; row < parent->parent->members.size(); row++) {
DebugInfo::VariableInfo* child_at_row = parent->parent->members.ptr_at(row).ptr();
if (child_at_row == parent)
return create_index(row, 0, parent);
}
ASSERT_NOT_REACHED();
}
int VariablesModel::row_count(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return m_variables.size();
auto* node = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
return node->members.size();
}
String variable_value_as_string(const DebugInfo::VariableInfo& variable)
{
if (variable.location_type != DebugInfo::VariableInfo::LocationType::Address)
return "N/A";
auto variable_address = variable.location_data.address;
if (variable.type == "int") {
auto value = Debugger::the().session()->peek((u32*)variable_address);
ASSERT(value.has_value());
return String::format("%d", static_cast<int>(value.value()));
}
if (variable.type == "char") {
auto value = Debugger::the().session()->peek((u32*)variable_address);
ASSERT(value.has_value());
return String::format("'%c' (%d)", static_cast<char>(value.value()), static_cast<char>(value.value()));
}
return String::format("type: %s @ %08x, ", variable.type.characters(), variable_address);
}
GUI::Variant VariablesModel::data(const GUI::ModelIndex& index, Role role) const
{
auto* variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
switch (role) {
case Role::Display: {
auto value_as_string = variable_value_as_string(*variable);
return String::format("%s: %s", variable->name.characters(), value_as_string.characters());
}
case Role::Icon:
return m_variable_icon;
default:
return {};
}
}
void VariablesModel::update()
{
did_update();
}
RefPtr<VariablesModel> VariablesModel::create(const PtraceRegisters& regs)
{
auto variables = Debugger::the().session()->debug_info().get_variables_in_current_scope(regs);
return adopt(*new VariablesModel(move(variables), regs));
}

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DevTools/HackStudio/Debugger/VariablesModel.h Normal file
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/*
* 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 "Debugger.h"
#include <AK/NonnullOwnPtr.h>
#include <LibGUI/Model.h>
#include <LibGUI/TreeView.h>
#include <sys/arch/i386/regs.h>
class VariablesModel final : public GUI::Model {
public:
static RefPtr<VariablesModel> create(const PtraceRegisters& regs);
virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return 1; }
virtual GUI::Variant data(const GUI::ModelIndex& index, Role role = Role::Display) const override;
virtual void update() override;
virtual GUI::ModelIndex parent_index(const GUI::ModelIndex&) const override;
virtual GUI::ModelIndex index(int row, int column = 0, const GUI::ModelIndex& = GUI::ModelIndex()) const override;
private:
explicit VariablesModel(NonnullOwnPtrVector<DebugInfo::VariableInfo>&& variables, const PtraceRegisters& regs)
: m_variables(move(variables))
, m_regs(regs)
{
m_variable_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
}
NonnullOwnPtrVector<DebugInfo::VariableInfo> m_variables;
PtraceRegisters m_regs;
GUI::Icon m_variable_icon;
};