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#
# linux/arch/arm/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#
# With this config, max compressed image size = 640k
# Uncompressed image size = 1.3M (text+data)
SYSTEM =$(TOPDIR)/vmlinux
HEAD =$(COMPRESSED_HEAD)
OBJS =$(HEAD) misc.o $(COMPRESSED_EXTRA)
CFLAGS =-O2 -DSTDC_HEADERS $(CFLAGS_PROC)
ARFLAGS =rc
all: vmlinux
vmlinux: piggy.o $(OBJS)
$(LD) $(ZLINKFLAGS) -o vmlinux $(OBJS) piggy.o
$(HEAD): $(HEAD:.o=.S)
$(CC) -traditional -DLOADADDR=$(ZRELADDR) -c $(HEAD:.o=.S)
piggy.o: $(SYSTEM)
tmppiggy=_tmp_$$$$piggy; \
rm -f $$tmppiggy $$tmppiggy.gz $$tmppiggy.lnk; \
$(OBJCOPY) $(SYSTEM) $$tmppiggy; \
gzip -f -9 < $$tmppiggy > $$tmppiggy.gz; \
echo "SECTIONS { .data : { input_len = .; LONG(input_data_end - input_data) input_data = .; *(.data) input_data_end = .; }}" > $$tmppiggy.lnk; \
$(LD) -r -o piggy.o -b binary $$tmppiggy.gz -b elf32-arm -T $$tmppiggy.lnk; \
rm -f $$tmppiggy $$tmppiggy.gz $$tmppiggy.lnk;
clean:; rm -f vmlinux core
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