FAT32 bootloader boots the kernel

[nameless-os.git] / Makefile

diff --git a/Makefile b/Makefile
index d3f2ee4be49cbe23808b4d7813da6965cb51ed2e..738fb0c89192daa87e3ca2a3c2e65e1b6a43fcd7 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,6 @@
 export AS = yasm
-export LD = i686-elf-ld
 export CC = i686-elf-gcc
-QEMU = qemu-system-i386
+QEMU = qemu-system-i386 -monitor stdio
 
 GIT_REV = $(shell git rev-parse --short HEAD)
 
@@ -9,38 +8,45 @@ CFLAGS = -std=gnu89 -g -Iinclude/arch/x86 -ffreestanding -DGIT_COMMIT=\"$(GIT_RE
 
 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
 
-default: kernel/kernel.elf
+default: kernel/kernel.elf bootloader
 
 all: default boot/x86/disk.img
 
-run: boot/x86/disk.img
+bootloader: boot/x86/mbr boot/x86/vbr-fat32 boot/x86/stage3/LOADER.BIN
+
+run: all
        $(QEMU) boot/x86/disk.img
 
-boot/x86/disk.img: boot/x86/mbr.s boot/x86/vbr-fat32.s boot/x86/loader.s boot/x86/disk.dump boot/x86/fat32.s boot/x86/fat32-structs.s
-       cd boot/x86 && $(MAKE) all
+boot/x86/mbr: boot/x86/mbr.s
+       $(MAKE) -C boot/x86
+boot/x86/vbr-fat32: boot/x86/vbr-fat32.s boot/x86/fat32/*.s 
+       $(MAKE) -C boot/x86
+boot/x86/stage3/LOADER.BIN: boot/x86/stage3/*.s boot/x86/fat32/*.s
+       $(MAKE) -C boot/x86
+
+boot/x86/disk.img: boot/x86/mbr boot/x86/vbr-fat32 boot/x86/stage3/LOADER.BIN boot/x86/disk.dump 
+       truncate -s1G boot/x86/disk.img
+       sfdisk boot/x86/disk.img < boot/x86/disk.dump
+       mkfs.fat -F 32 --offset 2048 boot/x86/disk.img
+       dd if=boot/x86/mbr of=boot/x86/disk.img bs=440 count=1 conv=notrunc
+       dd if=boot/x86/vbr-fat32 of=boot/x86/disk.img bs=1 skip=90 seek=1048666 conv=notrunc
+       mcopy -i boot/x86/disk.img@@1M boot/x86/stage3/LOADER.BIN ::.
+       mcopy -i boot/x86/disk.img@@1M kernel/kernel.bin ::./KERNEL.BIN
 
 kernel/kernel.bin: ${KERNEL_OBJ}
-       $(LD) -o $@ -T kernel/linker.ld ${KERNEL_OBJ}
+       $(CC) -ffreestanding -nostdlib -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
-
 kernel/kernel.elf: kernel/kernel.bin
-       $(LD) -o $@ -T kernel/linker.ld ${KERNEL_OBJ} --oformat=elf32-i386
+       $(CC) -ffreestanding -nostdlib -o $@ -T kernel/linker.ld ${KERNEL_OBJ} -Wl,--oformat=elf32-i386
 
 clean:
        -rm kernel/kernel.bin kernel/kernel.elf ${KERNEL_OBJ}
        cd boot/x86 && $(MAKE) clean
 
-.PHONY: default all clean run
+.PHONY: default all clean run bootloader