arch/unicore32/boot/compressed/Makefile

   1 #
   2 # linux/arch/unicore32/boot/compressed/Makefile
   3 #
   4 # create a compressed vmlinuz image from the original vmlinux
   5 #
   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
   8 # for more details.
   9 #
  10 # Copyright (C) 2001~2010 GUAN Xue-tao
  11 #
  12
  13 ccflags-y       := -fpic -fno-builtin
  14 asflags-y       := -Wa,-march=all
  15
  16 OBJS            := misc.o
  17
  18 # font.c and font.o
  19 CFLAGS_font.o   := -Dstatic=
  20 $(obj)/font.c: $(srctree)/lib/fonts/font_8x8.c
  21         $(call cmd,shipped)
  22
  23 # piggy.S and piggy.o
  24 suffix_$(CONFIG_KERNEL_GZIP)    := gzip
  25 suffix_$(CONFIG_KERNEL_BZIP2)   := bz2
  26 suffix_$(CONFIG_KERNEL_LZO)     := lzo
  27 suffix_$(CONFIG_KERNEL_LZMA)    := lzma
  28
  29 $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
  30         $(call if_changed,$(suffix_y))
  31
  32 SEDFLAGS_piggy  = s/DECOMP_SUFFIX/$(suffix_y)/
  33 $(obj)/piggy.S: $(obj)/piggy.S.in
  34         @sed "$(SEDFLAGS_piggy)" < $< > $@
  35
  36 $(obj)/piggy.o:  $(obj)/piggy.$(suffix_y) $(obj)/piggy.S FORCE
  37
  38 targets         := vmlinux vmlinux.lds font.o font.c head.o misc.o \
  39                         piggy.$(suffix_y) piggy.o piggy.S \
  40
  41 # Make sure files are removed during clean
  42 extra-y         += piggy.gzip piggy.bz2 piggy.lzo piggy.lzma
  43
  44 # ?
  45 LDFLAGS_vmlinux += -p
  46 # Report unresolved symbol references
  47 LDFLAGS_vmlinux += --no-undefined
  48 # Delete all temporary local symbols
  49 LDFLAGS_vmlinux += -X
  50 # Next argument is a linker script
  51 LDFLAGS_vmlinux += -T
  52
  53 # For uidivmod
  54 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head.o $(obj)/piggy.o \
  55                 $(obj)/misc.o FORCE
  56         $(call if_changed,ld)
  57
  58 # We now have a PIC decompressor implementation.  Decompressors running
  59 # from RAM should not define ZTEXTADDR.  Decompressors running directly
  60 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
  61 ZTEXTADDR       := 0x03000000
  62 ZBSSADDR        := ALIGN(4)
  63
  64 CPPFLAGS_vmlinux.lds = -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"