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 ($(CONFIG_ARCH_P720T),y)
  27 # Borrow this code from SA1100
  28 OBJS            += head-sa1100.o
  29 endif
  30
  31 ifeq ($(CONFIG_ARCH_SA1100),y)
  32 OBJS            += head-sa1100.o
  33 endif
  34
  35 ifeq ($(CONFIG_CPU_XSCALE),y)
  36 OBJS            += head-xscale.o
  37 endif
  38
  39 ifeq ($(CONFIG_PXA_SHARPSL),y)
  40 OBJS            += head-sharpsl.o
  41 endif
  42
  43 ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
  44 ifeq ($(CONFIG_CPU_CP15),y)
  45 OBJS            += big-endian.o
  46 else
  47 # The endian should be set by h/w design.
  48 endif
  49 endif
  50
  51 #
  52 # We now have a PIC decompressor implementation.  Decompressors running
  53 # from RAM should not define ZTEXTADDR.  Decompressors running directly
  54 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
  55 # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
  56 ifeq ($(CONFIG_ZBOOT_ROM),y)
  57 ZTEXTADDR       := $(CONFIG_ZBOOT_ROM_TEXT)
  58 ZBSSADDR        := $(CONFIG_ZBOOT_ROM_BSS)
  59 else
  60 ZTEXTADDR       := 0
  61 ZBSSADDR        := ALIGN(4)
  62 endif
  63
  64 SEDFLAGS        = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
  65
  66 targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
  67                  head.o misc.o $(OBJS)
  68
  69 ifeq ($(CONFIG_FUNCTION_TRACER),y)
  70 ORIG_CFLAGS := $(KBUILD_CFLAGS)
  71 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
  72 endif
  73
  74 EXTRA_CFLAGS  := -fpic -fno-builtin
  75 EXTRA_AFLAGS  := -Wa,-march=all
  76
  77 # Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
  78 # linker symbols.  We only define initrd_phys and params_phys if the
  79 # machine class defined the corresponding makefile variable.
  80 LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
  81 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
  82 LDFLAGS_vmlinux += --be8
  83 endif
  84 ifneq ($(INITRD_PHYS),)
  85 LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
  86 endif
  87 ifneq ($(PARAMS_PHYS),)
  88 LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
  89 endif
  90 LDFLAGS_vmlinux += -p --no-undefined -X \
  91         $(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
  92
  93 # Don't allow any static data in misc.o, which
  94 # would otherwise mess up our GOT table
  95 CFLAGS_misc.o := -Dstatic=
  96
  97 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
  98                 $(addprefix $(obj)/, $(OBJS)) FORCE
  99         $(call if_changed,ld)
 100         @:
 101
 102 $(obj)/piggy.gz: $(obj)/../Image FORCE
 103         $(call if_changed,gzip)
 104
 105 $(obj)/piggy.o:  $(obj)/piggy.gz FORCE
 106
 107 CFLAGS_font.o := -Dstatic=
 108
 109 $(obj)/font.c: $(FONTC)
 110         $(call cmd,shipped)
 111
 112 $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
 113         @sed "$(SEDFLAGS)" < $< > $@