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 decompress.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/$(ZBSSADDR)/
  65
  66 suffix_$(CONFIG_KERNEL_GZIP) = gzip
  67 suffix_$(CONFIG_KERNEL_LZO)  = lzo
  68 suffix_$(CONFIG_KERNEL_LZMA) = lzma
  69
  70 targets       := vmlinux vmlinux.lds \
  71                  piggy.$(suffix_y) piggy.$(suffix_y).o \
  72                  font.o font.c head.o misc.o $(OBJS)
  73
  74 ifeq ($(CONFIG_FUNCTION_TRACER),y)
  75 ORIG_CFLAGS := $(KBUILD_CFLAGS)
  76 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
  77 endif
  78
  79 EXTRA_CFLAGS  := -fpic -fno-builtin
  80 EXTRA_AFLAGS  := -Wa,-march=all
  81
  82 # Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
  83 # linker symbols.  We only define initrd_phys and params_phys if the
  84 # machine class defined the corresponding makefile variable.
  85 LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
  86 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
  87 LDFLAGS_vmlinux += --be8
  88 endif
  89 ifneq ($(INITRD_PHYS),)
  90 LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
  91 endif
  92 ifneq ($(PARAMS_PHYS),)
  93 LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
  94 endif
  95 # ?
  96 LDFLAGS_vmlinux += -p
  97 # Report unresolved symbol references
  98 LDFLAGS_vmlinux += --no-undefined
  99 # Delete all temporary local symbols
 100 LDFLAGS_vmlinux += -X
 101 # Next argument is a linker script
 102 LDFLAGS_vmlinux += -T
 103
 104 # For __aeabi_uidivmod
 105 lib1funcs = $(obj)/lib1funcs.o
 106
 107 $(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
 108         $(call cmd,shipped)
 109
 110 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
 111                 $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
 112         $(call if_changed,ld)
 113         @:
 114
 115 $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
 116         $(call if_changed,$(suffix_y))
 117
 118 $(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
 119
 120 CFLAGS_font.o := -Dstatic=
 121
 122 $(obj)/font.c: $(FONTC)
 123         $(call cmd,shipped)
 124
 125 $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
 126         @sed "$(SEDFLAGS)" < $< > $@