LD = i686-elf-ld
CC = i686-elf-gcc
-all: boot.img
+GIT_REV = $(shell git rev-parse --short HEAD)
-boot.img: boot kernel/kernel.bin
- cat boot kernel/kernel.bin > $@
+CFLAGS = -std=gnu89 -g -Iinclude/arch/x86 -ffreestanding -DGIT_COMMIT=\"$(GIT_REV)\"
+
+KERNEL_OBJ = kernel/entry.o kernel/arch/x86/tty/tty.o kernel/drivers/irq/i8259a.o kernel/arch/x86/irq/idt.o kernel/arch/x86/irq/sample_handler.o kernel/kernel.o
+
+all: boot.img kernel/kernel.elf
+
+boot.img: boot/x86/boot kernel/kernel.bin
+ cat boot/x86/boot kernel/kernel.bin > $@
truncate -s1440K $@
-boot: boot.s
- $(AS) -f bin boot.s -o $@
+boot/x86/boot: boot/x86/boot.s boot/x86/a20.s boot/x86/protected.s boot/x86/print.s
+ $(AS) -f bin boot/x86/boot.s -o $@
-kernel/kernel.bin: kernel/entry.o kernel/kernel.o
- $(LD) -o $@ -Ttext 0x1000 kernel/entry.o kernel/kernel.o --oformat=binary
+kernel/kernel.bin: ${KERNEL_OBJ}
+ $(LD) -o $@ -T kernel/linker.ld ${KERNEL_OBJ}
kernel/entry.o: kernel/entry.s
$(AS) -f elf kernel/entry.s -o $@
+kernel/arch/x86/tty/tty.o: kernel/arch/x86/tty/tty.c
+
+kernel/drivers/irq/i8259a.o: kernel/drivers/irq/i8259a.c
+
+kernel/arch/x86/irq/idt.o: kernel/arch/x86/irq/idt.c
+
+kernel/arch/x86/irq/sample_handler.o: kernel/arch/x86/irq/sample_handler.c
+ $(CC) $(CFLAGS) -mgeneral-regs-only -c kernel/arch/x86/irq/sample_handler.c -o $@
+
kernel/kernel.o: kernel/kernel.c
- $(CC) -o $@ -ffreestanding -c kernel/kernel.c
+
+kernel/kernel.elf: kernel/kernel.bin
+ $(LD) -o $@ -T kernel/linker.ld ${KERNEL_OBJ} --oformat=elf32-i386
clean:
- rm boot kernel/kernel.bin kernel/entry.o kernel/kernel.o boot.img
+ rm boot/x86/boot kernel/kernel.bin kernel/kernel.elf ${KERNEL_OBJ} boot.img
.PHONY: all clean