Rehaul the memory map

[nameless-os.git] / Makefile

diff --git a/Makefile b/Makefile
index ce6fccc146f48fb206005586f2beb4a3c5c5e970..738fb0c89192daa87e3ca2a3c2e65e1b6a43fcd7 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,34 +1,52 @@
-AS = yasm
-LD = i686-elf-ld
-CC = i686-elf-gcc
+export AS = yasm
+export CC = i686-elf-gcc
+QEMU = qemu-system-i386 -monitor stdio
 
-KERNEL_OBJ = kernel/entry.o kernel/arch/x86/tty/tty.o kernel/kernel.o
+GIT_REV = $(shell git rev-parse --short HEAD)
 
-all: boot.img kernel/kernel.elf
+CFLAGS = -std=gnu89 -g -Iinclude/arch/x86 -ffreestanding -DGIT_COMMIT=\"$(GIT_REV)\"
 
-boot.img: boot/x86/boot kernel/kernel.bin
-       cat boot/x86/boot kernel/kernel.bin > $@
-       truncate -s1440K $@
+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
 
-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 $@
+default: kernel/kernel.elf bootloader
+
+all: default 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/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
-       $(CC) -g -o $@ -ffreestanding -c kernel/arch/x86/tty/tty.c
-
-kernel/kernel.o: kernel/kernel.c
-       $(CC) -g -o $@ -Iinclude/arch/x86 -ffreestanding -c kernel/kernel.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.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 boot/x86/boot kernel/kernel.bin ${KERNEL_OBJ} boot.img
+       -rm kernel/kernel.bin kernel/kernel.elf ${KERNEL_OBJ}
+       cd boot/x86 && $(MAKE) clean
 
-.PHONY: all clean
+.PHONY: default all clean run bootloader