2 # linux/arch/unicore32/boot/compressed/Makefile
4 # create a compressed vmlinuz image from the original vmlinux
6 # This file is subject to the terms and conditions of the GNU General Public
7 # License. See the file "COPYING" in the main directory of this archive
10 # Copyright (C) 2001~2010 GUAN Xue-tao
13 ccflags-y := -fpic -fno-builtin
14 asflags-y := -Wa,-march=all
19 CFLAGS_font.o := -Dstatic=
20 $(obj)/font.c: $(srctree)/lib/fonts/font_8x8.c
24 suffix_$(CONFIG_KERNEL_GZIP) := gzip
25 suffix_$(CONFIG_KERNEL_BZIP2) := bz2
26 suffix_$(CONFIG_KERNEL_LZO) := lzo
27 suffix_$(CONFIG_KERNEL_LZMA) := lzma
29 $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
30 $(call if_changed,$(suffix_y))
32 SEDFLAGS_piggy = s/DECOMP_SUFFIX/$(suffix_y)/
33 $(obj)/piggy.S: $(obj)/piggy.S.in
34 @sed "$(SEDFLAGS_piggy)" < $< > $@
36 $(obj)/piggy.o: $(obj)/piggy.$(suffix_y) $(obj)/piggy.S FORCE
38 targets := vmlinux vmlinux.lds font.o font.c head.o misc.o \
39 piggy.$(suffix_y) piggy.o piggy.S \
41 # Make sure files are removed during clean
42 extra-y += piggy.gzip piggy.bz2 piggy.lzo piggy.lzma
46 # Report unresolved symbol references
47 LDFLAGS_vmlinux += --no-undefined
48 # Delete all temporary local symbols
50 # Next argument is a linker script
54 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head.o $(obj)/piggy.o \
58 # We now have a PIC decompressor implementation. Decompressors running
59 # from RAM should not define ZTEXTADDR. Decompressors running directly
60 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
61 ZTEXTADDR := 0x03000000
64 CPPFLAGS_vmlinux.lds = -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"