first boot

Makefile

@@ -0,0 +1,77 @@
+# ==============================================================================
+# 1. PROJECT CONFIGURATION
+# ==============================================================================
+BIN_TARGET := CometOS.bin
+TARGET     := CometOS.iso
+BUILD_DIR  := build
+LDSCRIPT   := linker.ld
+
+# Toolchain definitions
+CXX        := g++
+ASM        := as
+LD         := ld
+
+# Compiler and Linker Flags
+ASMFLAGS   := --32
+CXXFLAGS   := -Wall -Wextra -O3 -m32 -fno-use-cxa-atexit -nostdlib -fno-builtin -fno-rtti -fno-exceptions -fno-leading-underscore
+LDFLAGS    := -T $(LDSCRIPT) -melf_i386
+
+# ==============================================================================
+# 2. FILE SEARCH AND COMPONENT SETUP
+# ==============================================================================
+# Find all source files recursively in the current folder and subfolders
+SRCS      := $(wildcard src/**/*.cpp src/**/*.S)
+
+# Strip paths and convert extensions to .o (e.g., "src/main.cpp" -> "main.o")
+RAW_OBJS  := $(patsubst %.cpp,%.o,$(patsubst %.S,%.o,$(notdir $(SRCS))))
+
+# Place all object files into the build directory
+OBJS      := $(addprefix $(BUILD_DIR)/, $(RAW_OBJS))
+
+# Automagically tell Make where to find the original source files
+VPATH     := $(sort $(dir $(SRCS)))
+
+# ==============================================================================
+# 3. BUILD RULES
+# ==============================================================================
+.PHONY: all clean run
+
+# Default rule
+all: $(TARGET)
+
+run: $(TARGET)
+	qemu-system-i386 -cdrom $(TARGET) -m 1024
+
+# Link rule: Combines all objects using the linker script
+$(BIN_TARGET): $(OBJS) $(LDSCRIPT)
+	$(LD) $(OBJS) $(LDFLAGS) -o $@
+	@echo "Build successful: $(BIN_TARGET)"
+
+$(TARGET): $(BIN_TARGET)
+	@mkdir iso/boot/grub -p
+	@cp $< iso/boot/
+	@echo 'set default=0' > iso/boot/grub/grub.cfg
+	@echo 'set timeout=0' >> iso/boot/grub/grub.cfg
+	@echo '' >> iso/boot/grub/grub.cfg
+	@echo 'menuentry "CometOS" {' >> iso/boot/grub/grub.cfg
+	@echo '    multiboot /boot/CometOS.bin' >> iso/boot/grub/grub.cfg
+	@echo '    boot' >> iso/boot/grub/grub.cfg
+	@echo '}' >> iso/boot/grub/grub.cfg
+	grub-mkrescue --output=$@ iso
+
+# Compilation rule for C++ files
+$(BUILD_DIR)/%.o: %.cpp | $(BUILD_DIR)
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+# Compilation rule for Assembly files
+$(BUILD_DIR)/%.o: %.S | $(BUILD_DIR)
+	$(ASM) $(ASMFLAGS) -c $< -o $@
+
+# Safely create the build directory if it doesn't exist
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+
+# Cleanup rule
+clean:
+	rm -rf $(BUILD_DIR) $(BIN_TARGET) $(TARGET)
+	@echo "Cleaned up build files."