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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__ $(AFLAGS) -traditional -E -o $*.o $<
.S.o:
$(CC) -D__ASSEMBLY__ $(AFLAGS) -traditional -c -o $*.o $<
CFLAGS = $(CPPFLAGS) -O -fno-builtin -DSTDC_HEADERS
LD_ARGS = -Ttext 0x00400000
OBJS = crt0.o start.o main.o misc.o ../coffboot/string.o ../coffboot/zlib.o image.o sysmap.o
LIBS = $(TOPDIR)/lib/lib.a
ifeq ($(CONFIG_PPC64),y)
MSIZE=.64
else
MSIZE=
endif
ifeq ($(CONFIG_ALL_PPC),y)
# yes, we want to build chrp stuff
CONFIG_CHRP = y
endif
ifeq ($(CONFIG_SMP),y)
TFTPIMAGE=/tftpboot/zImage.chrp.smp$(MSIZE)
else
TFTPIMAGE=/tftpboot/zImage.chrp$(MSIZE)
endif
all: $(TOPDIR)/zImage
#
# Only build anything here if we're configured for CHRP
# -- cort
#
ifeq ($(CONFIG_CHRP),y)
znetboot: zImage
cp zImage $(TFTPIMAGE)
znetboot.initrd: zImage.initrd
cp zImage.initrd $(TFTPIMAGE)
floppy: zImage
mcopy zImage a:zImage
piggyback: piggyback.c
$(HOSTCC) $(HOSTCFLAGS) -DKERNELBASE=$(KERNELBASE) -o piggyback piggyback.c
mknote: mknote.c
$(HOSTCC) $(HOSTCFLAGS) -o mknote mknote.c
image.o: piggyback ../coffboot/vmlinux.gz
./piggyback image < ../coffboot/vmlinux.gz | $(AS) -o image.o
sysmap.o: piggyback ../../../System.map
./piggyback sysmap < ../../../System.map | $(AS) -o sysmap.o
initrd.o: ramdisk.image.gz piggyback
./piggyback initrd < ramdisk.image.gz | $(AS) -o initrd.o
zImage: $(OBJS) no_initrd.o mknote
$(LD) $(LD_ARGS) -o $@ $(OBJS) no_initrd.o $(LIBS)
./mknote > note
$(OBJCOPY) $@ $@ --add-section=.note=note -R .comment
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 note mknote $(OBJS) zImage
fastdep:
$(TOPDIR)/scripts/mkdep *.[Sch] > .depend
dep:
$(CPP) $(CPPFLAGS) -M *.S *.c > .depend
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