Reorganize repository into professional structure with src/, include/, and user_apps/ directories

.gitignore

@@ -115,3 +115,10 @@ Module.symvers
 # User-space programs from kernel module
 Linux_Kernel_Module/message_sender
 Linux_Kernel_Module/message_reader
+
+# User-space programs in new structure
+user_apps/message_sender
+user_apps/message_reader
+
+# Kernel module in root
+message_slot.ko

Makefile

@@ -0,0 +1,76 @@
+# Makefile for Message Slot Kernel Module and User Applications
+# Builds the kernel module and user-space programs with a single command
+
+# Kernel module object
+obj-m := message_slot.o
+
+# Kernel build directory
+KDIR := /lib/modules/$(shell uname -r)/build
+
+# Current working directory
+PWD := $(shell pwd)
+
+# Source directories
+SRC_DIR := src
+INCLUDE_DIR := include
+USER_APPS_DIR := user_apps
+
+# User-space programs
+USER_PROGS := message_sender message_reader
+
+# Compiler flags for user-space programs
+CFLAGS := -O3 -Wall -std=c11 -I$(INCLUDE_DIR)
+
+.PHONY: all module user_programs clean help
+
+# Default target: build everything
+all: module user_programs
+
+# Build the kernel module
+module:
+	@echo "Building kernel module..."
+	make -C $(KDIR) M=$(PWD)/$(SRC_DIR) modules
+	@cp $(SRC_DIR)/message_slot.ko .
+	@echo "Kernel module built successfully: message_slot.ko"
+
+# Build user-space programs
+user_programs: $(addprefix $(USER_APPS_DIR)/, $(USER_PROGS))
+	@echo "User applications built successfully"
+
+$(USER_APPS_DIR)/message_sender: $(USER_APPS_DIR)/message_sender.c $(INCLUDE_DIR)/message_slot.h
+	@echo "Building message_sender..."
+	gcc $(CFLAGS) -o $(USER_APPS_DIR)/message_sender $(USER_APPS_DIR)/message_sender.c
+
+$(USER_APPS_DIR)/message_reader: $(USER_APPS_DIR)/message_reader.c $(INCLUDE_DIR)/message_slot.h
+	@echo "Building message_reader..."
+	gcc $(CFLAGS) -o $(USER_APPS_DIR)/message_reader $(USER_APPS_DIR)/message_reader.c
+
+# Clean build artifacts
+clean:
+	@echo "Cleaning build artifacts..."
+	make -C $(KDIR) M=$(PWD)/$(SRC_DIR) clean
+	rm -f $(addprefix $(USER_APPS_DIR)/, $(USER_PROGS))
+	rm -f message_slot.ko
+	@echo "Clean complete"
+
+# Help target
+help:
+	@echo "Message Slot Build System"
+	@echo "========================="
+	@echo ""
+	@echo "Targets:"
+	@echo "  all            - Build kernel module and user applications (default)"
+	@echo "  module         - Build only the kernel module"
+	@echo "  user_programs  - Build only the user-space programs"
+	@echo "  clean          - Remove all build artifacts"
+	@echo "  help           - Display this help message"
+	@echo ""
+	@echo "Directory Structure:"
+	@echo "  src/           - Kernel module source code"
+	@echo "  include/       - Header files"
+	@echo "  user_apps/     - User-space applications"
+	@echo ""
+	@echo "Build Products:"
+	@echo "  message_slot.ko              - Kernel module (root directory)"
+	@echo "  user_apps/message_sender     - Message sender program"
+	@echo "  user_apps/message_reader     - Message reader program"