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#
# arch/ppc/boot/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
# Adapted for PowerPC by Gary Thomas
# modified by Cort (cort@cs.nmt.edu)
#
.c.s:
$(CC) $(CFLAGS) -S -o $*.s $<
.s.o:
$(AS) -o $*.o $<
.c.o:
$(CC) $(CFLAGS) -DINITRD_OFFSET=$(IOFF) -DINITRD_SIZE=$(ISZ) -DZIMAGE_OFFSET=$(ZOFF) -DZIMAGE_SIZE=$(ZSZ) -c -o $*.o $<
.S.s:
$(CC) -D__ASSEMBLY__ -traditional -E -o $*.o $<
.S.o:
$(CC) -D__ASSEMBLY__ -traditional -c -o $*.o $<
ZOFF = 0
ZSZ = 0
IOFF = 0
ISZ = 0
ifeq ($(CONFIG_SMP),y)
TFTPIMAGE=/tftpboot/zImage.prep.smp
else
TFTPIMAGE=/tftpboot/zImage.prep
endif
ZLINKFLAGS = -T ../vmlinux.lds -Ttext 0x00800000
GZIP_FLAGS = -v9
OBJECTS := head.o misc.o ../coffboot/zlib.o
CFLAGS = -O2 -DSTDC_HEADERS -fno-builtin -I$(TOPDIR)/include
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJCOPY_ARGS = -O elf32-powerpc
OBJECTS += vreset.o kbd.o of1275.o
ifeq ($(CONFIG_SERIAL_CONSOLE),y)
OBJECTS += ns16550.o
endif
all: zImage
zvmlinux.initrd: zvmlinux
$(LD) $(ZLINKFLAGS) -o zvmlinux.initrd.tmp $(OBJECTS)
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment \
--add-section=initrd=ramdisk.image.gz \
--add-section=image=../coffboot/vmlinux.gz \
zvmlinux.initrd.tmp zvmlinux.initrd
$(CC) $(CFLAGS) -DINITRD_OFFSET=`sh offset $(OBJDUMP) zvmlinux.initrd initrd` \
-DINITRD_SIZE=`sh size $(OBJDUMP) zvmlinux.initrd initrd` \
-DZIMAGE_OFFSET=`sh offset $(OBJDUMP) zvmlinux.initrd image` \
-DZIMAGE_SIZE=`sh size $(OBJDUMP) zvmlinux.initrd image` \
-c -o misc.o misc.c
$(LD) $(ZLINKFLAGS) -o zvmlinux.initrd.tmp $(OBJECTS)
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment \
--add-section=initrd=ramdisk.image.gz \
--add-section=image=../coffboot/vmlinux.gz \
zvmlinux.initrd.tmp $@
rm zvmlinux.initrd.tmp
zImage: zvmlinux mkprep
./mkprep -pbp zvmlinux zImage
zImage.initrd: zvmlinux.initrd mkprep
./mkprep -pbp zvmlinux.initrd zImage.initrd
zvmlinux: $(OBJECTS) ../coffboot/vmlinux.gz
#
# build the boot loader image and then compute the offset into it
# for the kernel image
#
$(LD) $(ZLINKFLAGS) -o zvmlinux.tmp $(OBJECTS)
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment --add-section=image=../coffboot/vmlinux.gz \
zvmlinux.tmp $@
#
# then with the offset rebuild the bootloader so we know where the kernel is
#
$(CC) $(CFLAGS) -DINITRD_OFFSET=0 -DINITRD_SIZE=0 \
-DZIMAGE_OFFSET=`sh offset $(OBJDUMP) zvmlinux image` \
-DZIMAGE_SIZE=`sh size $(OBJDUMP) zvmlinux image` \
-c -o misc.o misc.c
$(LD) $(ZLINKFLAGS) -o zvmlinux.tmp $(OBJECTS)
$(OBJCOPY) $(OBJCOPY_ARGS) -R .comment --add-section=image=../coffboot/vmlinux.gz \
zvmlinux.tmp $@
rm zvmlinux.tmp
floppy: $(TOPDIR)/vmlinux zImage
dd if=zImage of=/dev/fd0H1440 bs=64b
mkprep : mkprep.c
$(HOSTCC) -o mkprep mkprep.c
znetboot : zImage
cp zImage $(TFTPIMAGE)
znetboot.initrd : zImage.initrd
cp zImage.initrd $(TFTPIMAGE)
clean:
rm -f vmlinux* zvmlinux* mkprep zImage*
fastdep:
$(TOPDIR)/scripts/mkdep *.[Sch] > .depend
dep:
$(CPP) -M *.S *.c > .depend
# just here to match coffboot/Makefile
vmlinux.coff:
vmlinux.coff.initrd:
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