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 AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
   8 HEAD    = head.o
   9 OBJS    = misc.o decompress.o
  10 FONTC   = $(srctree)/drivers/video/console/font_acorn_8x8.c
  11
  12 #
  13 # Architecture dependencies
  14 #
  15 ifeq ($(CONFIG_ARCH_ACORN),y)
  16 OBJS            += ll_char_wr.o font.o
  17 endif
  18
  19 ifeq ($(CONFIG_ARCH_SHARK),y)
  20 OBJS            += head-shark.o ofw-shark.o
  21 endif
  22
  23 ifeq ($(CONFIG_ARCH_P720T),y)
  24 # Borrow this code from SA1100
  25 OBJS            += head-sa1100.o
  26 endif
  27
  28 ifeq ($(CONFIG_ARCH_SA1100),y)
  29 OBJS            += head-sa1100.o
  30 endif
  31
  32 ifeq ($(CONFIG_CPU_XSCALE),y)
  33 OBJS            += head-xscale.o
  34 endif
  35
  36 ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
  37 OBJS            += head-sharpsl.o
  38 endif
  39
  40 ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
  41 ifeq ($(CONFIG_CPU_CP15),y)
  42 OBJS            += big-endian.o
  43 else
  44 # The endian should be set by h/w design.
  45 endif
  46 endif
  47
  48 ifeq ($(CONFIG_ARCH_SHMOBILE),y)
  49 OBJS            += head-shmobile.o
  50 endif
  51
  52 #
  53 # We now have a PIC decompressor implementation.  Decompressors running
  54 # from RAM should not define ZTEXTADDR.  Decompressors running directly
  55 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
  56 # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
  57 ifeq ($(CONFIG_ZBOOT_ROM),y)
  58 ZTEXTADDR       := $(CONFIG_ZBOOT_ROM_TEXT)
  59 ZBSSADDR        := $(CONFIG_ZBOOT_ROM_BSS)
  60 else
  61 ZTEXTADDR       := 0
  62 ZBSSADDR        := ALIGN(4)
  63 endif
  64
  65 SEDFLAGS        = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
  66
  67 suffix_$(CONFIG_KERNEL_GZIP) = gzip
  68 suffix_$(CONFIG_KERNEL_LZO)  = lzo
  69 suffix_$(CONFIG_KERNEL_LZMA) = lzma
  70
  71 targets       := vmlinux vmlinux.lds \
  72                  piggy.$(suffix_y) piggy.$(suffix_y).o \
  73                  font.o font.c head.o misc.o $(OBJS)
  74
  75 # Make sure files are removed during clean
  76 extra-y       += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
  77
  78 ifeq ($(CONFIG_FUNCTION_TRACER),y)
  79 ORIG_CFLAGS := $(KBUILD_CFLAGS)
  80 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
  81 endif
  82
  83 EXTRA_CFLAGS  := -fpic -fno-builtin
  84 EXTRA_AFLAGS  := -Wa,-march=all
  85
  86 # Supply ZRELADDR to the decompressor via a linker symbol.
  87 ifneq ($(CONFIG_AUTO_ZRELADDR),y)
  88 LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
  89 endif
  90 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
  91 LDFLAGS_vmlinux += --be8
  92 endif
  93 # ?
  94 LDFLAGS_vmlinux += -p
  95 # Report unresolved symbol references
  96 LDFLAGS_vmlinux += --no-undefined
  97 # Delete all temporary local symbols
  98 LDFLAGS_vmlinux += -X
  99 # Next argument is a linker script
 100 LDFLAGS_vmlinux += -T
 101
 102 # For __aeabi_uidivmod
 103 lib1funcs = $(obj)/lib1funcs.o
 104
 105 $(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
 106         $(call cmd,shipped)
 107
 108 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
 109                 $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
 110         $(call if_changed,ld)
 111         @:
 112
 113 $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
 114         $(call if_changed,$(suffix_y))
 115
 116 $(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
 117
 118 CFLAGS_font.o := -Dstatic=
 119
 120 $(obj)/font.c: $(FONTC)
 121         $(call cmd,shipped)
 122
 123 $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
 124         @sed "$(SEDFLAGS)" < $< > $@