added linker script

git-svn-id: svn://anubis/hos/trunk@12 5b3e749e-e535-0410-8002-a9bb6afbdfca

kernel/Makefile

@@ -1,14 +1,16 @@
 
 KERNEL = hos
-LOAD_ADDRESS = 0x100000
-LDTARGET = elf32-i386
-LDFLAGS = -Ttext $(LOAD_ADDRESS) --oformat $(LDTARGET)
+LDFLAGS = -T link.ld
 
 .PHONY: clean
 
-all:
+all: $(KERNEL)
+
+$(KERNEL): boot.o
+	ld $(LDFLAGS) -o $@ $<
+
+boot.o: boot.asm
 	nasm -f elf -o boot.o boot.asm
-	ld $(LDFLAGS) -o $(KERNEL) boot.o
 
 clean:
 	-rm -f *~ $(KERNEL) *.o