BaseOS

makefile

@@ -0,0 +1,57 @@
+
+CROSS = aarch64-none-elf-
+
+CC = $(CROSS)gcc
+AS = $(CROSS)as
+LD = $(CROSS)ld
+OBJCOPY = $(CROSS)objcopy
+
+CFLAGS = -O2 -ffreestanding -nostdlib -Wall -Wextra
+LDFLAGS = -T src/linker.ld
+
+SRC = src
+BUILD = build
+
+# List all C source files here (update as needed)
+SOURCES_C = $(SRC)/renderer.c  $(SRC)/font_pack.c $(SRC)/main.c
+
+# List assembler source files
+SOURCES_ASM = $(SRC)/boot.s
+
+# Object files (one per source file)
+OBJ_C = $(patsubst $(SRC)/%.c,$(BUILD)/%.o,$(SOURCES_C))
+OBJ_ASM = $(patsubst $(SRC)/%.s,$(BUILD)/%.o,$(SOURCES_ASM))
+
+TARGET_ELF = $(BUILD)/kernel.elf
+TARGET_IMG = $(BUILD)/kernel8.img
+
+.PHONY: all clean run
+
+all: $(TARGET_IMG)
+
+# Create build directory if it does not exist
+$(BUILD):
+	mkdir -p $(BUILD)
+
+# Assemble assembly sources
+$(BUILD)/%.o: $(SRC)/%.s | $(BUILD)
+	$(AS) $< -o $@
+
+# Compile C sources
+$(BUILD)/%.o: $(SRC)/%.c | $(BUILD)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Link all object files into ELF kernel
+$(TARGET_ELF): $(OBJ_ASM) $(OBJ_C)
+	$(LD) $(LDFLAGS) $^ -o $@
+
+# Convert ELF to raw binary image
+$(TARGET_IMG): $(TARGET_ELF)
+	$(OBJCOPY) $< -O binary $@
+
+clean:
+	rm -rf $(BUILD)
+
+# Run QEMU emulator for Raspberry Pi 3 with serial output redirected to terminal
+run: $(TARGET_IMG)
+	sudo qemu-system-aarch64 -M raspi3b -serial stdio -kernel $(TARGET_IMG)