arch/arm/boot/compressed/Makefile

   1 #
   2 # linux/arch/arm/boot/compressed/Makefile
   3 #
   4 # create a compressed vmlinuz image from the original vmlinux
   5 #
   6
   7 HEAD    = head.o
   8 OBJS    = misc.o
   9 FONTC   = $(srctree)/drivers/video/console/font_acorn_8x8.c
  10
  11 #
  12 # Architecture dependencies
  13 #
  14 ifeq ($(CONFIG_ARCH_ACORN),y)
  15 OBJS            += ll_char_wr.o font.o
  16 endif
  17
  18 ifeq ($(CONFIG_ARCH_SHARK),y)
  19 OBJS            += head-shark.o ofw-shark.o
  20 endif
  21
  22 ifeq ($(CONFIG_ARCH_L7200),y)
  23 OBJS            += head-l7200.o
  24 endif
  25
  26 ifeq ($(CONFIG_ARCH_CLPS7500),y)
  27 HEAD            = head-clps7500.o
  28 endif
  29
  30 ifeq ($(CONFIG_ARCH_P720T),y)
  31 # Borrow this code from SA1100
  32 OBJS            += head-sa1100.o
  33 endif
  34
  35 ifeq ($(CONFIG_ARCH_SA1100),y)
  36 OBJS            += head-sa1100.o
  37 endif
  38
  39 ifeq ($(CONFIG_CPU_XSCALE),y)
  40 OBJS            += head-xscale.o
  41 endif
  42
  43 ifeq ($(CONFIG_PXA_SHARPSL),y)
  44 OBJS            += head-sharpsl.o
  45 endif
  46
  47 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  48 ifeq ($(CONFIG_CPU_CP15),y)
  49 OBJS            += big-endian.o
  50 else
  51 # The endian should be set by h/w design.
  52 endif
  53 endif
  54
  55 #
  56 # We now have a PIC decompressor implementation.  Decompressors running
  57 # from RAM should not define ZTEXTADDR.  Decompressors running directly
  58 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
  59 # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
  60 ifeq ($(CONFIG_ZBOOT_ROM),y)
  61 ZTEXTADDR       := $(CONFIG_ZBOOT_ROM_TEXT)
  62 ZBSSADDR        := $(CONFIG_ZBOOT_ROM_BSS)
  63 else
  64 ZTEXTADDR       := 0
  65 ZBSSADDR        := ALIGN(4)
  66 endif
  67
  68 SEDFLAGS        = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
  69
  70 targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
  71                  head.o misc.o $(OBJS)
  72 EXTRA_CFLAGS  := -fpic -fno-builtin
  73 EXTRA_AFLAGS  :=
  74
  75 # Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
  76 # linker symbols.  We only define initrd_phys and params_phys if the
  77 # machine class defined the corresponding makefile variable.
  78 LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
  79 ifneq ($(INITRD_PHYS),)
  80 LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
  81 endif
  82 ifneq ($(PARAMS_PHYS),)
  83 LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
  84 endif
  85 LDFLAGS_vmlinux += -p --no-undefined -X \
  86         $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
  87
  88 # Don't allow any static data in misc.o, which
  89 # would otherwise mess up our GOT table
  90 CFLAGS_misc.o := -Dstatic=
  91
  92 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
  93                 $(addprefix $(obj)/, $(OBJS)) FORCE
  94         $(call if_changed,ld)
  95         @:
  96
  97 $(obj)/piggy.gz: $(obj)/../Image FORCE
  98         $(call if_changed,gzip)
  99
 100 $(obj)/piggy.o:  $(obj)/piggy.gz FORCE
 101
 102 CFLAGS_font.o := -Dstatic=
 103
 104 $(obj)/font.c: $(FONTC)
 105         $(call cmd,shipped)
 106
 107 $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
 108         @sed "$(SEDFLAGS)" < $< > $@
 109
 110 $(obj)/misc.o: $(obj)/misc.c include/asm/arch/uncompress.h lib/inflate.c
 111