OUTPUT=kernel.img

all : $(OUTPUT)

#PREFIX=i686-pc-linux-gnu-
PREFIX=
NEWLIBPATH=/usr/lib/newlib/i686-linux-gnu

CC=$(PREFIX)gcc
CXX=$(PREFIX)g++
LD=$(PREFIX)ld
OBJDUMP=$(PREFIX)objdump
STRIP=$(PREFIX)strip
CFLAGS=-I. -m32 -fno-builtin -nostdlib -I../include/common -I../include/kernel -I$(NEWLIBPATH)/include -Os -std=c99 -flto
ASFLAGS=-m32 #-Wa,-a,-ad
CXXFLAGS:=$(CFLAGS) -fno-rtti -fno-exceptions
#LIBGCC:=/usr/lib/gcc/x86_64-linux-gnu/4.6/32/libgcc.a
#LDFLAGS:=-L/usr/lib/newlib/i686-linux-gnu/lib $(NEWLIBPATH)/lib/crt0.o $(NEWLIBPATH)/lib/crt1.o $(NEWLIBPATH)/lib/libc.a  $(NEWLIBPATH)/lib/libm.a $(LIBGCC)
#--gc-sections 
# cnstdlib.o stuff.o

# cnstdlib.o
#	$(LD) -m elf_i386 -T link.ld --oformat elf32-i386 -o $@ $^  $(LDFLAGS)
# loader.o
#loader.o 

D3Stuff:=DrawFunctions.o Rasterizer.o #3d.o 
CFLAGS:=$(CFLAGS) -DRASTERIZER

kernel.elf : loader.o main.o mystdlib.o $(D3Stuff)
	$(LD) -flto -dead-strip -nostdlib --nmagic -m elf_i386 -T linker.ld -o $@ $^   $(LDFLAGS)
#	$(STRIP)  --strip-unneeded $@ 
	$(OBJDUMP) -S --disassemble -j .text -j .bootsector -j .data -j .bss $@ > kernel.dump

pad : pad.c
	gcc -o $@ $^

$(OUTPUT) : kernel.elf pad
#	objcopy --only-section=.bootsector -O binary kernel.elf kernel.img
	objcopy --set-section-flags .bootsector=alloc,load,code --change-section-address .text-0xff8400 --change-section-address .data-0xff8400 -j .bss -j .data -j .bootsector -j .text -O binary kernel.elf kernel.img
	ls -lah kernel.img
	./pad

run : $(OUTPUT)
	hexdump -C $^
	qemu-system-i386 -hda $^

clean : 
	rm -rf *~ *.o $(OUTPUT) kernel.elf