2 # linux/arch/i386/boot/compressed/Makefile
4 # create a compressed vmlinux image from the original vmlinux
8 SYSTEM = $(TOPDIR)/vmlinux
10 OBJECTS = $(HEAD) misc.o
12 ZLDFLAGS = -e startup_32
15 # ZIMAGE_OFFSET is the load offset of the compression loader
16 # BZIMAGE_OFFSET is the load offset of the high loaded compression loader
18 ZIMAGE_OFFSET = 0x1000
19 BZIMAGE_OFFSET = 0x100000
21 ZLINKFLAGS = -Ttext $(ZIMAGE_OFFSET) $(ZLDFLAGS)
22 BZLINKFLAGS = -Ttext $(BZIMAGE_OFFSET) $(ZLDFLAGS)
26 vmlinux: piggy.o $(OBJECTS)
27 $(LD) $(ZLINKFLAGS) -o vmlinux $(OBJECTS) piggy.o
29 bvmlinux: piggy.o $(OBJECTS)
30 $(LD) $(BZLINKFLAGS) -o bvmlinux $(OBJECTS) piggy.o
33 $(CC) $(AFLAGS) -traditional -c head.S
38 $(CC) $(CFLAGS) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) -c misc.c
41 tmppiggy=_tmp_$$$$piggy; \
42 rm -f $$tmppiggy $$tmppiggy.gz $$tmppiggy.lnk; \
43 $(OBJCOPY) $(SYSTEM) $$tmppiggy; \
44 gzip -f -9 < $$tmppiggy > $$tmppiggy.gz; \
45 echo "SECTIONS { .data : { input_len = .; LONG(input_data_end - input_data) input_data = .; *(.data) input_data_end = .; }}" > $$tmppiggy.lnk; \
46 $(LD) -r -o piggy.o -b binary $$tmppiggy.gz -b elf32-i386 -T $$tmppiggy.lnk; \
47 rm -f $$tmppiggy $$tmppiggy.gz $$tmppiggy.lnk
50 rm -f vmlinux bvmlinux _tmp_*