Renamed DebugServers directory to DebugServer

src/DebugServer/GdbRsp/AvrGdb/CommandPackets/AbstractMemoryAccessPacket.hpp

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <cstdint>
+#include <optional>
+
+#include "src/DebugServer/GdbRsp/CommandPackets/CommandPacket.hpp"
+
+#include "src/Targets/TargetMemory.hpp"
+
+namespace Bloom::DebugServer::Gdb::AvrGdb::CommandPackets
+{
+    /**
+     * The ReadMemory class implements a structure for "m" packets. Upon receiving these packets, the server is
+     * expected to read memory from the target and send it the client.
+     */
+    class AbstractMemoryAccessPacket: public Bloom::DebugServer::Gdb::CommandPackets::CommandPacket
+    {
+    public:
+        explicit AbstractMemoryAccessPacket(const std::vector<unsigned char>& rawPacket): CommandPacket(rawPacket) {};
+
+    protected:
+        /**
+         * The mask used by the AVR GDB client to encode the memory type into memory addresses.
+         */
+        static constexpr std::uint32_t AVR_GDB_MEMORY_ADDRESS_MASK = 0xFE0000U;
+
+        /**
+         * avr-gdb uses the most significant 15 bits in memory addresses to indicate the type of memory being
+         * addressed.
+         *
+         * @param address
+         * @return
+         */
+        Targets::TargetMemoryType getMemoryTypeFromGdbAddress(std::uint32_t address) {
+            if ((address & AbstractMemoryAccessPacket::AVR_GDB_MEMORY_ADDRESS_MASK) != 0U) {
+                return Targets::TargetMemoryType::RAM;
+            }
+
+            return Targets::TargetMemoryType::FLASH;
+        }
+
+        /**
+         * Strips the most significant 15 bits from a GDB memory address.
+         *
+         * @param address
+         * @return
+         */
+        std::uint32_t removeMemoryTypeIndicatorFromGdbAddress(std::uint32_t address) {
+            return (address & AbstractMemoryAccessPacket::AVR_GDB_MEMORY_ADDRESS_MASK) != 0U
+                ? (address & ~(AbstractMemoryAccessPacket::AVR_GDB_MEMORY_ADDRESS_MASK))
+                : address;
+        }
+    };
+}