- Implemented support for range stepping with GDB (vCont... packets)

- Refactored some bits of the generic GDB server class, along with the AVR-specific implementation

src/DebugServer/Gdb/AvrGdb/AvrGdbRsp.hpp

@@ -3,6 +3,7 @@
 #include <cstdint>
 
 #include "TargetDescriptor.hpp"
+#include "DebugSession.hpp"
 
 #include "src/DebugServer/Gdb/GdbRspDebugServer.hpp"
 
@@ -22,19 +23,37 @@ namespace DebugServer::Gdb::AvrGdb
         }
 
     protected:
-        void init() override;
+        DebugSession* startDebugSession(Connection&& connection) override;
 
-        const Gdb::TargetDescriptor& getGdbTargetDescriptor() override {
-            return this->gdbTargetDescriptor.value();
-        }
+        void endDebugSession() override;
+
+        const Gdb::TargetDescriptor& getGdbTargetDescriptor() override;
+
+        DebugSession* getActiveDebugSession() override;
 
         std::unique_ptr<Gdb::CommandPackets::CommandPacket> resolveCommandPacket(
             const RawPacket& rawPacket
         ) override;
 
-        std::set<std::pair<Feature, std::optional<std::string>>> getSupportedFeatures() override;
+        /**
+         * Should return a set of GDB features supported by the AVR GDB server. Each supported feature may come with an
+         * optional value.
+         *
+         * The set of features returned by this function will be stored against the active debug session object.
+         *
+         * @return
+         */
+        std::set<std::pair<Feature, std::optional<std::string>>> getSupportedFeatures();
+
+        void handleTargetStoppedGdbResponse(Targets::TargetProgramCounter programAddress) override;
 
     private:
-        std::optional<TargetDescriptor> gdbTargetDescriptor;
+        TargetDescriptor gdbTargetDescriptor;
+
+        /**
+         * When a connection with a GDB client is established, a new instance of the DebugSession class is created and
+         * held here. A value of std::nullopt means there is no active debug session present.
+         */
+        std::optional<DebugSession> activeDebugSession;
     };
 }