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# Makefile for making ELF bootable images for booting on CHRP
# using Open Firmware.
#
# Geert Uytterhoeven September 1997
#
# Based on coffboot by Paul Mackerras
.c.s:
$(CC) $(CFLAGS) -S -o $*.s $<
.s.o:
$(AS) -o $*.o $<
.c.o:
$(CC) $(CFLAGS) -DKERNELBASE=$(KERNELBASE) -c -o $*.o $<
.S.s:
$(CC) -D__ASSEMBLY__ -traditional -E -o $*.o $<
.S.o:
$(CC) -D__ASSEMBLY__ -traditional -c -o $*.o $<
CFLAGS = -O -fno-builtin -DSTDC_HEADERS -I$(TOPDIR)/include
LD_ARGS = -T ../vmlinux.lds -Ttext 0x00800000
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJS = crt0.o start.o main.o misc.o ../coffboot/string.o ../coffboot/zlib.o image.o # initrd.o
LIBS = $(TOPDIR)/lib/lib.a
ifeq ($(CONFIG_ALL_PPC),y)
# yes, we want to build chrp stuff
CONFIG_CHRP = y
endif
all: $(TOPDIR)/zImage
#
# Only build anything here if we're configured for CHRP
# -- cort
#
ifeq ($(CONFIG_CHRP),y)
znetboot: zImage
cp zImage /tftpboot/zImage.chrp
znetboot.initrd: zImage.initrd
cp zImage.initrd /tftpboot/zImage.chrp
floppy: zImage
mcopy zImage a:zImage
piggyback: piggyback.c
$(HOSTCC) -DKERNELBASE=$(KERNELBASE) -o piggyback piggyback.c
image.o: piggyback ../coffboot/vmlinux.gz
./piggyback image < ../coffboot/vmlinux.gz | $(AS) -o image.o
initrd.o: ramdisk.image.gz piggyback
./piggyback initrd < ramdisk.image.gz | $(AS) -o initrd.o
zImage: $(OBJS) no_initrd.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) no_initrd.o $(LIBS)
objcopy zImage zImage
zImage.initrd: $(OBJS) initrd.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) initrd.o $(LIBS)
else
znetboot:
znetboot.initrd:
floppy:
zImage:
zImage.initrd:
endif
# just here to match coffboot/Makefile
vmlinux.coff:
vmlinux.coff.initrd:
clean:
rm -f piggyback
rm -f $(OBJS) zImage
fastdep:
$(TOPDIR)/scripts/mkdep *.[Sch] > .depend
dep:
$(CPP) -M *.S *.c > .depend
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