LibDebug: Move everything into the "Debug" namespace

31 files changed, 115 insertions, 85 deletions

diff --git a/Applications/Debugger/main.cpp b/Applications/Debugger/main.cpp
index 4829c52b0d..d88125cd47 100644
--- a/Applications/Debugger/main.cpp
+++ b/Applications/Debugger/main.cpp
@@ -46,7 +46,7 @@
 
 RefPtr<Line::Editor> editor;
 
-OwnPtr<DebugSession> g_debug_session;
+OwnPtr<Debug::DebugSession> g_debug_session;
 
 static void handle_sigint(int)
 {
@@ -186,7 +186,7 @@ int main(int argc, char** argv)
         "program", Core::ArgsParser::Required::Yes);
     args_parser.parse(argc, argv);
 
-    auto result = DebugSession::exec_and_attach(command);
+    auto result = Debug::DebugSession::exec_and_attach(command);
     if (!result) {
         fprintf(stderr, "Failed to start debugging session for: \"%s\"\n", command);
         exit(1);
@@ -201,13 +201,13 @@ int main(int argc, char** argv)
     bool rc = g_debug_session->insert_breakpoint(g_debug_session->elf().entry().as_ptr());
     ASSERT(rc);
 
-    DebugInfo::SourcePosition previous_source_position;
+    Debug::DebugInfo::SourcePosition previous_source_position;
     bool in_step_line = false;
 
-    g_debug_session->run([&](DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {
-        if (reason == DebugSession::DebugBreakReason::Exited) {
+    g_debug_session->run([&](Debug::DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {
+        if (reason == Debug::DebugSession::DebugBreakReason::Exited) {
             printf("Program exited.\n");
-            return DebugSession::DebugDecision::Detach;
+            return Debug::DebugSession::DebugDecision::Detach;
         }
 
         ASSERT(optional_regs.has_value());
@@ -223,7 +223,7 @@ int main(int argc, char** argv)
                     printf("No source information for current instruction! stoppoing.\n");
                 in_step_line = false;
             } else {
-                return DebugSession::DebugDecision::SingleStep;
+                return Debug::DebugSession::DebugDecision::SingleStep;
             }
         }
 
@@ -240,25 +240,25 @@ int main(int argc, char** argv)
             auto command_result = editor->get_line("(sdb) ");
 
             if (command_result.is_error())
-                return DebugSession::DebugDecision::Detach;
+                return Debug::DebugSession::DebugDecision::Detach;
 
             auto& command = command_result.value();
 
             bool success = false;
-            Optional<DebugSession::DebugDecision> decision;
+            Optional<Debug::DebugSession::DebugDecision> decision;
 
             if (command.is_empty() && !editor->history().is_empty()) {
                 command = editor->history().last();
             }
             if (command == "cont") {
-                decision = DebugSession::DebugDecision::Continue;
+                decision = Debug::DebugSession::DebugDecision::Continue;
                 success = true;
             } else if (command == "si") {
-                decision = DebugSession::DebugDecision::SingleStep;
+                decision = Debug::DebugSession::DebugDecision::SingleStep;
                 success = true;
             } else if (command == "sl") {
                 if (source_position.has_value()) {
-                    decision = DebugSession::DebugDecision::SingleStep;
+                    decision = Debug::DebugSession::DebugDecision::SingleStep;
                     in_step_line = true;
                     success = true;
                 } else {
diff --git a/DevTools/HackStudio/Debugger/BacktraceModel.cpp b/DevTools/HackStudio/Debugger/BacktraceModel.cpp
index 500b1a0747..afcf75ddbf 100644
--- a/DevTools/HackStudio/Debugger/BacktraceModel.cpp
+++ b/DevTools/HackStudio/Debugger/BacktraceModel.cpp
@@ -30,7 +30,7 @@
 
 namespace HackStudio {
 
-NonnullRefPtr<BacktraceModel> BacktraceModel::create(const DebugSession& debug_session, const PtraceRegisters& regs)
+NonnullRefPtr<BacktraceModel> BacktraceModel::create(const Debug::DebugSession& debug_session, const PtraceRegisters& regs)
 {
     return adopt(*new BacktraceModel(create_backtrace(debug_session, regs)));
 }
@@ -51,7 +51,7 @@ GUI::ModelIndex BacktraceModel::index(int row, int column, const GUI::ModelIndex
     return create_index(row, column, &m_frames.at(row));
 }
 
-Vector<BacktraceModel::FrameInfo> BacktraceModel::create_backtrace(const DebugSession& debug_session, const PtraceRegisters& regs)
+Vector<BacktraceModel::FrameInfo> BacktraceModel::create_backtrace(const Debug::DebugSession& debug_session, const PtraceRegisters& regs)
 {
     u32 current_ebp = regs.ebp;
     u32 current_instruction = regs.eip;
@@ -64,7 +64,7 @@ Vector<BacktraceModel::FrameInfo> BacktraceModel::create_backtrace(const DebugSe
         }
 
         frames.append({ name, current_instruction, current_ebp });
-        auto frame_info = StackFrameUtils::get_info(*Debugger::the().session(), current_ebp);
+        auto frame_info = Debug::StackFrameUtils::get_info(*Debugger::the().session(), current_ebp);
         ASSERT(frame_info.has_value());
         current_instruction = frame_info.value().return_address;
         current_ebp = frame_info.value().next_ebp;
diff --git a/DevTools/HackStudio/Debugger/BacktraceModel.h b/DevTools/HackStudio/Debugger/BacktraceModel.h
index ff974b57d4..06d697c388 100644
--- a/DevTools/HackStudio/Debugger/BacktraceModel.h
+++ b/DevTools/HackStudio/Debugger/BacktraceModel.h
@@ -31,13 +31,17 @@
 #include <LibGUI/Model.h>
 #include <sys/arch/i386/regs.h>
 
+namespace Debug {
+
 class DebugSession;
 
+}
+
 namespace HackStudio {
 
 class BacktraceModel final : public GUI::Model {
 public:
-    static NonnullRefPtr<BacktraceModel> create(const DebugSession&, const PtraceRegisters& regs);
+    static NonnullRefPtr<BacktraceModel> create(const Debug::DebugSession&, const PtraceRegisters& regs);
 
     virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return m_frames.size(); }
     virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return 1; }
@@ -66,7 +70,7 @@ private:
     {
     }
 
-    static Vector<FrameInfo> create_backtrace(const DebugSession&, const PtraceRegisters&);
+    static Vector<FrameInfo> create_backtrace(const Debug::DebugSession&, const PtraceRegisters&);
 
     Vector<FrameInfo> m_frames;
 };
diff --git a/DevTools/HackStudio/Debugger/DebugInfoWidget.cpp b/DevTools/HackStudio/Debugger/DebugInfoWidget.cpp
index c3d7ebda5c..30fb546a74 100644
--- a/DevTools/HackStudio/Debugger/DebugInfoWidget.cpp
+++ b/DevTools/HackStudio/Debugger/DebugInfoWidget.cpp
@@ -115,8 +115,8 @@ DebugInfoWidget::DebugInfoWidget()
     auto is_valid_index = [](auto& index) {
         if (!index.is_valid())
             return false;
-        auto* variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
-        if (variable->location_type != DebugInfo::VariableInfo::LocationType::Address)
+        auto* variable = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
+        if (variable->location_type != Debug::DebugInfo::VariableInfo::LocationType::Address)
             return false;
         return variable->is_enum_type() || variable->type_name.is_one_of("int", "bool");
     };
@@ -139,7 +139,7 @@ DebugInfoWidget::DebugInfoWidget()
     };
 }
 
-void DebugInfoWidget::update_state(const DebugSession& debug_session, const PtraceRegisters& regs)
+void DebugInfoWidget::update_state(const Debug::DebugSession& debug_session, const PtraceRegisters& regs)
 {
     m_variables_view->set_model(VariablesModel::create(regs));
     m_backtrace_view->set_model(BacktraceModel::create(debug_session, regs));
diff --git a/DevTools/HackStudio/Debugger/DebugInfoWidget.h b/DevTools/HackStudio/Debugger/DebugInfoWidget.h
index 727c89f912..308ec6c02f 100644
--- a/DevTools/HackStudio/Debugger/DebugInfoWidget.h
+++ b/DevTools/HackStudio/Debugger/DebugInfoWidget.h
@@ -43,7 +43,7 @@ class DebugInfoWidget final : public GUI::Widget {
 public:
     virtual ~DebugInfoWidget() override {}
 
-    void update_state(const DebugSession&, const PtraceRegisters&);
+    void update_state(const Debug::DebugSession&, const PtraceRegisters&);
     void program_stopped();
     void set_debug_actions_enabled(bool enabled);
 
diff --git a/DevTools/HackStudio/Debugger/Debugger.cpp b/DevTools/HackStudio/Debugger/Debugger.cpp
index 49280741cd..1938a77630 100644
--- a/DevTools/HackStudio/Debugger/Debugger.cpp
+++ b/DevTools/HackStudio/Debugger/Debugger.cpp
@@ -69,7 +69,7 @@ void Debugger::on_breakpoint_change(const String& file, size_t line, BreakpointC
     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; });
+        Debugger::the().m_breakpoints.remove_all_matching([&](Debug::DebugInfo::SourcePosition val) { return val == position; });
     }
 
     auto session = Debugger::the().session();
@@ -94,7 +94,7 @@ void Debugger::on_breakpoint_change(const String& file, size_t line, BreakpointC
     }
 }
 
-DebugInfo::SourcePosition Debugger::create_source_position(const String& file, size_t line)
+Debug::DebugInfo::SourcePosition Debugger::create_source_position(const String& file, size_t line)
 {
     if (!file.starts_with('/') && !file.starts_with("./"))
         return { String::format("./%s", file.characters()), line + 1 };
@@ -109,7 +109,7 @@ int Debugger::start_static()
 
 void Debugger::start()
 {
-    m_debug_session = DebugSession::exec_and_attach(m_executable_path);
+    m_debug_session = Debug::DebugSession::exec_and_attach(m_executable_path);
     ASSERT(!!m_debug_session);
 
     for (const auto& breakpoint : m_breakpoints) {
@@ -130,11 +130,11 @@ int Debugger::debugger_loop()
 {
     ASSERT(m_debug_session);
 
-    m_debug_session->run([&](DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {
-        if (reason == DebugSession::DebugBreakReason::Exited) {
+    m_debug_session->run([&](Debug::DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> optional_regs) {
+        if (reason == Debug::DebugSession::DebugBreakReason::Exited) {
             dbg() << "Program exited";
             m_on_exit_callback();
-            return DebugSession::DebugDecision::Detach;
+            return Debug::DebugSession::DebugDecision::Detach;
         }
         remove_temporary_breakpoints();
         ASSERT(optional_regs.has_value());
@@ -146,7 +146,7 @@ int Debugger::debugger_loop()
             if (m_state.should_stop_single_stepping(source_position.value())) {
                 m_state.set_normal();
             } else {
-                return DebugSession::DebugDecision::SingleStep;
+                return Debug::DebugSession::DebugDecision::SingleStep;
             }
         }
 
@@ -165,18 +165,18 @@ int Debugger::debugger_loop()
         switch (m_continue_type) {
         case ContinueType::Continue:
             m_state.set_normal();
-            return DebugSession::DebugDecision::Continue;
+            return Debug::DebugSession::DebugDecision::Continue;
         case ContinueType::SourceSingleStep:
             m_state.set_single_stepping(source_position.value());
-            return DebugSession::DebugDecision::SingleStep;
+            return Debug::DebugSession::DebugDecision::SingleStep;
         case ContinueType::SourceStepOut:
             m_state.set_stepping_out();
             do_step_out(regs);
-            return DebugSession::DebugDecision::Continue;
+            return Debug::DebugSession::DebugDecision::Continue;
         case ContinueType::SourceStepOver:
             m_state.set_stepping_over();
             do_step_over(regs);
-            return DebugSession::DebugDecision::Continue;
+            return Debug::DebugSession::DebugDecision::Continue;
         }
         ASSERT_NOT_REACHED();
     });
@@ -190,13 +190,13 @@ void Debugger::DebuggingState::set_normal()
     m_original_source_position.clear();
 }
 
-void Debugger::DebuggingState::set_single_stepping(DebugInfo::SourcePosition original_source_position)
+void Debugger::DebuggingState::set_single_stepping(Debug::DebugInfo::SourcePosition original_source_position)
 {
     m_state = State::SingleStepping;
     m_original_source_position = original_source_position;
 }
 
-bool Debugger::DebuggingState::should_stop_single_stepping(const DebugInfo::SourcePosition& current_source_position) const
+bool Debugger::DebuggingState::should_stop_single_stepping(const Debug::DebugInfo::SourcePosition& current_source_position) const
 {
     ASSERT(m_state == State::SingleStepping);
     return m_original_source_position.value() != current_source_position;
@@ -244,7 +244,7 @@ void Debugger::do_step_over(const PtraceRegisters& regs)
 
 void Debugger::insert_temporary_breakpoint_at_return_address(const PtraceRegisters& regs)
 {
-    auto frame_info = StackFrameUtils::get_info(*m_debug_session, regs.ebp);
+    auto frame_info = Debug::StackFrameUtils::get_info(*m_debug_session, regs.ebp);
     ASSERT(frame_info.has_value());
     u32 return_address = frame_info.value().return_address;
     insert_temporary_breakpoint(return_address);
diff --git a/DevTools/HackStudio/Debugger/Debugger.h b/DevTools/HackStudio/Debugger/Debugger.h
index bcd496dda9..ec7dead40e 100644
--- a/DevTools/HackStudio/Debugger/Debugger.h
+++ b/DevTools/HackStudio/Debugger/Debugger.h
@@ -55,7 +55,7 @@ public:
 
     void set_executable_path(const String& path) { m_executable_path = path; }
 
-    DebugSession* session() { return m_debug_session.ptr(); }
+    Debug::DebugSession* session() { return m_debug_session.ptr(); }
 
     // Thread entry point
     static int start_static();
@@ -85,18 +85,18 @@ private:
         State get() const { return m_state; }
 
         void set_normal();
-        void set_single_stepping(DebugInfo::SourcePosition original_source_position);
+        void set_single_stepping(Debug::DebugInfo::SourcePosition original_source_position);
         void set_stepping_out() { m_state = State::SteppingOut; }
         void set_stepping_over() { m_state = State::SteppingOver; }
 
-        bool should_stop_single_stepping(const DebugInfo::SourcePosition& current_source_position) const;
+        bool should_stop_single_stepping(const Debug::DebugInfo::SourcePosition& current_source_position) const;
         void clear_temporary_breakpoints();
         void add_temporary_breakpoint(u32 address);
         const Vector<u32>& temporary_breakpoints() const { return m_addresses_of_temporary_breakpoints; }
 
     private:
         State m_state { Normal };
-        Optional<DebugInfo::SourcePosition> m_original_source_position; // The source position at which we started the current single step
+        Optional<Debug::DebugInfo::SourcePosition> m_original_source_position; // The source position at which we started the current single step
         Vector<u32> m_addresses_of_temporary_breakpoints;
     };
 
@@ -105,7 +105,7 @@ private:
         Function<void()> on_continue_callback,
         Function<void()> on_exit_callback);
 
-    static DebugInfo::SourcePosition create_source_position(const String& file, size_t line);
+    static Debug::DebugInfo::SourcePosition create_source_position(const String& file, size_t line);
 
     void start();
     int debugger_loop();
@@ -116,13 +116,13 @@ private:
     void insert_temporary_breakpoint(FlatPtr address);
     void insert_temporary_breakpoint_at_return_address(const PtraceRegisters&);
 
-    OwnPtr<DebugSession> m_debug_session;
+    OwnPtr<Debug::DebugSession> m_debug_session;
     DebuggingState m_state;
 
     pthread_mutex_t m_continue_mutex {};
     pthread_cond_t m_continue_cond {};
 
-    Vector<DebugInfo::SourcePosition> m_breakpoints;
+    Vector<Debug::DebugInfo::SourcePosition> m_breakpoints;
 
     String m_executable_path;
 
diff --git a/DevTools/HackStudio/Debugger/VariablesModel.cpp b/DevTools/HackStudio/Debugger/VariablesModel.cpp
index 8bc964fa40..6f958d12fd 100644
--- a/DevTools/HackStudio/Debugger/VariablesModel.cpp
+++ b/DevTools/HackStudio/Debugger/VariablesModel.cpp
@@ -34,7 +34,7 @@ GUI::ModelIndex VariablesModel::index(int row, int column, const GUI::ModelIndex
 {
     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* parent = static_cast<const Debug::DebugInfo::VariableInfo*>(parent_index.internal_data());
     auto* child = &parent->members[row];
     return create_index(row, column, child);
 }
@@ -43,7 +43,7 @@ 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* child = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
     auto* parent = child->parent;
     if (parent == nullptr)
         return {};
@@ -55,7 +55,7 @@ GUI::ModelIndex VariablesModel::parent_index(const GUI::ModelIndex& index) const
         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();
+        Debug::DebugInfo::VariableInfo* child_at_row = parent->parent->members.ptr_at(row).ptr();
         if (child_at_row == parent)
             return create_index(row, 0, parent);
     }
@@ -66,13 +66,13 @@ 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());
+    auto* node = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
     return node->members.size();
 }
 
-static String variable_value_as_string(const DebugInfo::VariableInfo& variable)
+static String variable_value_as_string(const Debug::DebugInfo::VariableInfo& variable)
 {
-    if (variable.location_type != DebugInfo::VariableInfo::LocationType::Address)
+    if (variable.location_type != Debug::DebugInfo::VariableInfo::LocationType::Address)
         return "N/A";
 
     auto variable_address = variable.location_data.address;
@@ -108,7 +108,7 @@ static String variable_value_as_string(const DebugInfo::VariableInfo& variable)
     return String::format("type: %s @ %08x, ", variable.type_name.characters(), variable_address);
 }
 
-static Optional<u32> string_to_variable_value(const StringView& string_value, const DebugInfo::VariableInfo& variable)
+static Optional<u32> string_to_variable_value(const StringView& string_value, const Debug::DebugInfo::VariableInfo& variable)
 {
     if (variable.is_enum_type()) {
         auto prefix_string = String::format("%s::", variable.type_name.characters());
@@ -145,7 +145,7 @@ static Optional<u32> string_to_variable_value(const StringView& string_value, co
 
 void VariablesModel::set_variable_value(const GUI::ModelIndex& index, const StringView& string_value, GUI::Window* parent_window)
 {
-    auto variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
+    auto variable = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
 
     auto value = string_to_variable_value(string_value, *variable);
 
@@ -163,7 +163,7 @@ void VariablesModel::set_variable_value(const GUI::ModelIndex& index, const Stri
 
 GUI::Variant VariablesModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
 {
-    auto* variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
+    auto* variable = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
     switch (role) {
     case GUI::ModelRole::Display: {
         auto value_as_string = variable_value_as_string(*variable);
diff --git a/DevTools/HackStudio/Debugger/VariablesModel.h b/DevTools/HackStudio/Debugger/VariablesModel.h
index bb0e3d5b2f..41ed5e3ec9 100644
--- a/DevTools/HackStudio/Debugger/VariablesModel.h
+++ b/DevTools/HackStudio/Debugger/VariablesModel.h
@@ -48,13 +48,13 @@ public:
     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)
+    explicit VariablesModel(NonnullOwnPtrVector<Debug::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;
+    NonnullOwnPtrVector<Debug::DebugInfo::VariableInfo> m_variables;
     PtraceRegisters m_regs;
 
     GUI::Icon m_variable_icon;
diff --git a/DevTools/UserspaceEmulator/Emulator.cpp b/DevTools/UserspaceEmulator/Emulator.cpp
index 6f849a8f1d..d3dba62486 100644
--- a/DevTools/UserspaceEmulator/Emulator.cpp
+++ b/DevTools/UserspaceEmulator/Emulator.cpp
@@ -154,7 +154,7 @@ bool Emulator::load_elf()
     m_free_symbol_start = free_symbol.value().value();
     m_free_symbol_end = m_free_symbol_start + free_symbol.value().size();
 
-    m_debug_info = make<DebugInfo>(m_elf);
+    m_debug_info = make<Debug::DebugInfo>(m_elf);
     return true;
 }
 
diff --git a/DevTools/UserspaceEmulator/Emulator.h b/DevTools/UserspaceEmulator/Emulator.h
index 0709b93bd8..4b0ec9a94a 100644
--- a/DevTools/UserspaceEmulator/Emulator.h
+++ b/DevTools/UserspaceEmulator/Emulator.h
@@ -64,7 +64,7 @@ public:
 
 private:
     NonnullRefPtr<ELF::Loader> m_elf;
-    OwnPtr<DebugInfo> m_debug_info;
+    OwnPtr<Debug::DebugInfo> m_debug_info;
 
     SoftMMU m_mmu;
     SoftCPU m_cpu;
diff --git a/Libraries/LibDebug/DebugInfo.cpp b/Libraries/LibDebug/DebugInfo.cpp
index f8b13d25b5..0e29e7ca18 100644
--- a/Libraries/LibDebug/DebugInfo.cpp
+++ b/Libraries/LibDebug/DebugInfo.cpp
@@ -33,6 +33,8 @@
 
 //#define DEBUG_SPAM
 
+namespace Debug {
+
 DebugInfo::DebugInfo(NonnullRefPtr<const ELF::Loader> elf)
     : m_elf(elf)
     , m_dwarf_info(Dwarf::DwarfInfo::create(m_elf))
@@ -107,9 +109,9 @@ void DebugInfo::prepare_lines()
     auto buffer = section.wrapping_byte_buffer();
     InputMemoryStream stream { buffer };
 
-    Vector<LineProgram::LineInfo> all_lines;
+    Vector<Dwarf::LineProgram::LineInfo> all_lines;
     while (!stream.eof()) {
-        LineProgram program(stream);
+        Dwarf::LineProgram program(stream);
         all_lines.append(program.lines());
     }
 
@@ -331,7 +333,9 @@ Vector<DebugInfo::SourcePosition> DebugInfo::source_lines_in_scope(const Variabl
     return source_lines;
 }
 
-DebugInfo::SourcePosition DebugInfo::SourcePosition::from_line_info(const LineProgram::LineInfo& line)
+DebugInfo::SourcePosition DebugInfo::SourcePosition::from_line_info(const Dwarf::LineProgram::LineInfo& line)
 {
     return { line.file, line.line, line.address };
 }
+
+}
diff --git a/Libraries/LibDebug/DebugInfo.h b/Libraries/LibDebug/DebugInfo.h
index 9208dea102..3a02fa8003 100644
--- a/Libraries/LibDebug/DebugInfo.h
+++ b/Libraries/LibDebug/DebugInfo.h
@@ -36,6 +36,8 @@
 #include <LibELF/Loader.h>
 #include <sys/arch/i386/regs.h>
 
+namespace Debug {
+
 class DebugInfo {
 public:
     explicit DebugInfo(NonnullRefPtr<const ELF::Loader> elf);
@@ -48,7 +50,7 @@ public:
         bool operator==(const SourcePosition& other) const { return file_path == other.file_path && line_number == other.line_number; }
         bool operator!=(const SourcePosition& other) const { return !(*this == other); }
 
-        static SourcePosition from_line_info(const LineProgram::LineInfo&);
+        static SourcePosition from_line_info(const Dwarf::LineProgram::LineInfo&);
     };
 
     struct VariableInfo {
@@ -119,5 +121,7 @@ private:
     NonnullRefPtr<Dwarf::DwarfInfo> m_dwarf_info;
 
     Vector<VariablesScope> m_scopes;
-    Vector<LineProgram::LineInfo> m_sorted_lines;
+    Vector<Dwarf::LineProgram::LineInfo> m_sorted_lines;
 };
+
+}
diff --git a/Libraries/LibDebug/DebugSession.cpp b/Libraries/LibDebug/DebugSession.cpp
index 2c6394de1e..2640817185 100644
--- a/Libraries/LibDebug/DebugSession.cpp
+++ b/Libraries/LibDebug/DebugSession.cpp
@@ -28,6 +28,8 @@
 #include <AK/Optional.h>
 #include <stdlib.h>
 
+namespace Debug {
+
 DebugSession::DebugSession(int pid)
     : m_debugee_pid(pid)
     , m_executable(initialize_executable_mapped_file(pid))
@@ -263,3 +265,5 @@ void* DebugSession::single_step()
     set_registers(regs);
     return (void*)regs.eip;
 }
+
+}
diff --git a/Libraries/LibDebug/DebugSession.h b/Libraries/LibDebug/DebugSession.h
index e11f93c944..d3e212ff28 100644
--- a/Libraries/LibDebug/DebugSession.h
+++ b/Libraries/LibDebug/DebugSession.h
@@ -42,6 +42,8 @@
 #include <sys/wait.h>
 #include <unistd.h>
 
+namespace Debug {
+
 class DebugSession {
 public:
     static OwnPtr<DebugSession> exec_and_attach(const String& command);
@@ -243,3 +245,5 @@ void DebugSession::run(Callback callback)
         }
     }
 }
+
+}
diff --git a/Libraries/LibDebug/Dwarf/AbbreviationsMap.cpp b/Libraries/LibDebug/Dwarf/AbbreviationsMap.cpp
index 25e208b554..22c52f19d7 100644
--- a/Libraries/LibDebug/Dwarf/AbbreviationsMap.cpp
+++ b/Libraries/LibDebug/Dwarf/AbbreviationsMap.cpp
@@ -29,7 +29,7 @@
 
 #include <AK/Stream.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 AbbreviationsMap::AbbreviationsMap(const DwarfInfo& dwarf_info, u32 offset)
     : m_dwarf_info(dwarf_info)
diff --git a/Libraries/LibDebug/Dwarf/AbbreviationsMap.h b/Libraries/LibDebug/Dwarf/AbbreviationsMap.h
index 2067e74495..ce5da7408a 100644
--- a/Libraries/LibDebug/Dwarf/AbbreviationsMap.h
+++ b/Libraries/LibDebug/Dwarf/AbbreviationsMap.h
@@ -31,7 +31,7 @@
 #include <AK/Optional.h>
 #include <AK/Types.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 class DwarfInfo;
 
diff --git a/Libraries/LibDebug/Dwarf/CompilationUnit.cpp b/Libraries/LibDebug/Dwarf/CompilationUnit.cpp
index c22f3f34cd..664d68e957 100644
--- a/Libraries/LibDebug/Dwarf/CompilationUnit.cpp
+++ b/Libraries/LibDebug/Dwarf/CompilationUnit.cpp
@@ -26,7 +26,7 @@
 #include "CompilationUnit.h"
 #include "DIE.h"
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 CompilationUnit::CompilationUnit(const DwarfInfo& dwarf_info, u32 offset, const CompilationUnitHeader& header)
     : m_dwarf_info(dwarf_info)
diff --git a/Libraries/LibDebug/Dwarf/CompilationUnit.h b/Libraries/LibDebug/Dwarf/CompilationUnit.h
index 09f185c2d9..811ce3bc37 100644
--- a/Libraries/LibDebug/Dwarf/CompilationUnit.h
+++ b/Libraries/LibDebug/Dwarf/CompilationUnit.h
@@ -29,7 +29,7 @@
 #include "AbbreviationsMap.h"
 #include <AK/Types.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 class DwarfInfo;
 class DIE;
diff --git a/Libraries/LibDebug/Dwarf/DIE.cpp b/Libraries/LibDebug/Dwarf/DIE.cpp
index 90dbe3d9b1..be3f669d55 100644
--- a/Libraries/LibDebug/Dwarf/DIE.cpp
+++ b/Libraries/LibDebug/Dwarf/DIE.cpp
@@ -30,7 +30,7 @@
 #include <AK/ByteBuffer.h>
 #include <AK/Stream.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 DIE::DIE(const CompilationUnit& unit, u32 offset)
     : m_compilation_unit(unit)
diff --git a/Libraries/LibDebug/Dwarf/DIE.h b/Libraries/LibDebug/Dwarf/DIE.h
index 2d2da9ea4f..713609b772 100644
--- a/Libraries/LibDebug/Dwarf/DIE.h
+++ b/Libraries/LibDebug/Dwarf/DIE.h
@@ -33,7 +33,7 @@
 #include <AK/Optional.h>
 #include <AK/Types.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 class CompilationUnit;
 
diff --git a/Libraries/LibDebug/Dwarf/DwarfInfo.cpp b/Libraries/LibDebug/Dwarf/DwarfInfo.cpp
index ccf5d26e0b..32ee6d1944 100644
--- a/Libraries/LibDebug/Dwarf/DwarfInfo.cpp
+++ b/Libraries/LibDebug/Dwarf/DwarfInfo.cpp
@@ -28,7 +28,7 @@
 
 #include <AK/Stream.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 DwarfInfo::DwarfInfo(NonnullRefPtr<const ELF::Loader> elf)
     : m_elf(elf)
diff --git a/Libraries/LibDebug/Dwarf/DwarfInfo.h b/Libraries/LibDebug/Dwarf/DwarfInfo.h
index 24263cbc4f..96dcd2ad5a 100644
--- a/Libraries/LibDebug/Dwarf/DwarfInfo.h
+++ b/Libraries/LibDebug/Dwarf/DwarfInfo.h
@@ -34,7 +34,7 @@
 #include <AK/String.h>
 #include <LibELF/Loader.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 class DwarfInfo : public RefCounted<DwarfInfo> {
 public:
diff --git a/Libraries/LibDebug/Dwarf/DwarfTypes.h b/Libraries/LibDebug/Dwarf/DwarfTypes.h
index 2db11bf5d4..86304b067a 100644
--- a/Libraries/LibDebug/Dwarf/DwarfTypes.h
+++ b/Libraries/LibDebug/Dwarf/DwarfTypes.h
@@ -28,7 +28,7 @@
 
 #include <AK/Types.h>
 
-namespace Dwarf {
+namespace Debug::Dwarf {
 
 struct [[gnu::packed]] CompilationUnitHeader
 {
diff --git a/Libraries/LibDebug/Dwarf/Expression.cpp b/Libraries/LibDebug/Dwarf/Expression.cpp
index a38b0fd2bd..57c4ac2857 100644
--- a/Libraries/LibDebug/Dwarf/Expression.cpp
+++ b/Libraries/LibDebug/Dwarf/Expression.cpp
@@ -29,7 +29,7 @@
 
 #include <sys/arch/i386/regs.h>
 
-namespace Dwarf::Expression {
+namespace Debug::Dwarf::Expression {
 
 Value evaluate(ReadonlyBytes bytes, const PtraceRegisters& regs)
 {
diff --git a/Libraries/LibDebug/Dwarf/Expression.h b/Libraries/LibDebug/Dwarf/Expression.h
index de9463901d..fedc636c83 100644
--- a/Libraries/LibDebug/Dwarf/Expression.h
+++ b/Libraries/LibDebug/Dwarf/Expression.h
@@ -31,7 +31,7 @@
 
 class PtraceRegisters;
 
-namespace Dwarf::Expression {
+namespace Debug::Dwarf::Expression {
 
 enum class Type {
     None,
diff --git a/Libraries/LibDebug/Dwarf/LineProgram.cpp b/Libraries/LibDebug/Dwarf/LineProgram.cpp
index 99a5fb7136..a47b174a4b 100644
--- a/Libraries/LibDebug/Dwarf/LineProgram.cpp
+++ b/Libraries/LibDebug/Dwarf/LineProgram.cpp
@@ -30,6 +30,8 @@
 
 //#define DWARF_DEBUG
 
+namespace Debug::Dwarf {
+
 LineProgram::LineProgram(InputMemoryStream& stream)
     : m_stream(stream)
 {
@@ -252,3 +254,5 @@ void LineProgram::run_program()
         }
     }
 }
+
+}
diff --git a/Libraries/LibDebug/Dwarf/LineProgram.h b/Libraries/LibDebug/Dwarf/LineProgram.h
index 092b2deba8..7bb2fa3d78 100644
--- a/Libraries/LibDebug/Dwarf/LineProgram.h
+++ b/Libraries/LibDebug/Dwarf/LineProgram.h
@@ -30,6 +30,8 @@
 #include <AK/String.h>
 #include <AK/Vector.h>
 
+namespace Debug::Dwarf {
+
 class LineProgram {
 public:
     explicit LineProgram(InputMemoryStream& stream);
@@ -55,8 +57,7 @@ private:
     void handle_standard_opcode(u8 opcode);
     void handle_sepcial_opcode(u8 opcode);
 
-    struct [[gnu::packed]] UnitHeader32
-    {
+    struct [[gnu::packed]] UnitHeader32 {
         u32 length;
         u16 version;
         u32 header_length;
@@ -113,3 +114,5 @@ private:
 
     Vector<LineInfo> m_lines;
 };
+
+}
diff --git a/Libraries/LibDebug/StackFrameUtils.cpp b/Libraries/LibDebug/StackFrameUtils.cpp
index e85fce6754..6b68237924 100644
--- a/Libraries/LibDebug/StackFrameUtils.cpp
+++ b/Libraries/LibDebug/StackFrameUtils.cpp
@@ -26,7 +26,8 @@
 
 #include "StackFrameUtils.h"
 
-namespace StackFrameUtils {
+namespace Debug::StackFrameUtils {
+
 Optional<StackFrameInfo> get_info(const DebugSession& session, FlatPtr current_ebp)
 {
     auto return_address = session.peek(reinterpret_cast<u32*>(current_ebp + sizeof(FlatPtr)));
@@ -37,4 +38,5 @@ Optional<StackFrameInfo> get_info(const DebugSession& session, FlatPtr current_e
     StackFrameInfo info = { return_address.value(), next_ebp.value() };
     return info;
 }
+
 }
diff --git a/Libraries/LibDebug/StackFrameUtils.h b/Libraries/LibDebug/StackFrameUtils.h
index 9948ee04a7..557992d79e 100644
--- a/Libraries/LibDebug/StackFrameUtils.h
+++ b/Libraries/LibDebug/StackFrameUtils.h
@@ -31,7 +31,8 @@
 
 #include "LibDebug/DebugSession.h"
 
-namespace StackFrameUtils {
+namespace Debug::StackFrameUtils {
+
 struct StackFrameInfo {
     FlatPtr return_address;
     FlatPtr next_ebp;
diff --git a/Userland/functrace.cpp b/Userland/functrace.cpp
index 97406fb08e..ca90717ec9 100644
--- a/Userland/functrace.cpp
+++ b/Userland/functrace.cpp
@@ -47,7 +47,7 @@
 #include <string.h>
 #include <unistd.h>
 
-static OwnPtr<DebugSession> g_debug_session;
+static OwnPtr<Debug::DebugSession> g_debug_session;
 static bool g_should_output_color = false;
 
 static void handle_sigint(int)
@@ -126,7 +126,7 @@ int main(int argc, char** argv)
         "program", Core::ArgsParser::Required::Yes);
     args_parser.parse(argc, argv);
 
-    auto result = DebugSession::exec_and_attach(command);
+    auto result = Debug::DebugSession::exec_and_attach(command);
     if (!result) {
         fprintf(stderr, "Failed to start debugging session for: \"%s\"\n", command);
         exit(1);
@@ -143,29 +143,29 @@ int main(int argc, char** argv)
     size_t depth = 0;
     bool new_function = true;
 
-    g_debug_session->run([&](DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> regs) {
-        if (reason == DebugSession::DebugBreakReason::Exited) {
+    g_debug_session->run([&](Debug::DebugSession::DebugBreakReason reason, Optional<PtraceRegisters> regs) {
+        if (reason == Debug::DebugSession::DebugBreakReason::Exited) {
             printf("Program exited.\n");
-            return DebugSession::DebugDecision::Detach;
+            return Debug::DebugSession::DebugDecision::Detach;
         }
 
-        if (reason == DebugSession::DebugBreakReason::Syscall) {
+        if (reason == Debug::DebugSession::DebugBreakReason::Syscall) {
             print_syscall(regs.value(), depth + 1);
-            return DebugSession::DebugDecision::ContinueBreakAtSyscall;
+            return Debug::DebugSession::DebugDecision::ContinueBreakAtSyscall;
         }
 
         if (new_function) {
             auto function_name = g_debug_session->elf().symbolicate(regs.value().eip);
             print_function_call(function_name, depth);
             new_function = false;
-            return DebugSession::ContinueBreakAtSyscall;
+            return Debug::DebugSession::ContinueBreakAtSyscall;
         }
         auto instruction = instrumented->get((void*)regs.value().eip).value();
 
         if (instruction.mnemonic() == "RET") {
             if (depth != 0)
                 --depth;
-            return DebugSession::ContinueBreakAtSyscall;
+            return Debug::DebugSession::ContinueBreakAtSyscall;
         }
 
         // FIXME: we could miss some leaf functions that were called with a jump
@@ -174,6 +174,6 @@ int main(int argc, char** argv)
         ++depth;
         new_function = true;
 
-        return DebugSession::DebugDecision::SingleStep;
+        return Debug::DebugSession::DebugDecision::SingleStep;
     });
 }