arch/sparc/boot/Makefile

   1 # Makefile for the Sparc boot stuff.
   2 #
   3 # Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   4 # Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
   5
   6 ROOT_IMG        := /usr/src/root.img
   7 ELFTOAOUT       := elftoaout
   8 MKIMAGE         := $(srctree)/scripts/mkuboot.sh
   9
  10 hostprogs-y     := piggyback btfixupprep
  11 targets         := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout
  12 clean-files     := System.map
  13
  14 quiet_cmd_elftoaout     = ELFTOAOUT $@
  15       cmd_elftoaout     = $(ELFTOAOUT) $(obj)/image -o $@
  16 quiet_cmd_piggy         = PIGGY   $@
  17       cmd_piggy         = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG)
  18 quiet_cmd_strip         = STRIP   $@
  19       cmd_strip         = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@
  20
  21 ifeq ($(CONFIG_SPARC32),y)
  22 quiet_cmd_btfix         = BTFIX   $@
  23       cmd_btfix         = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
  24 quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
  25       cmd_sysmap        = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
  26 quiet_cmd_image = LD      $@
  27       cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
  28
  29 define rule_image
  30         $(if $($(quiet)cmd_image),               \
  31           echo '  $($(quiet)cmd_image)' &&)      \
  32           $(cmd_image);                          \
  33         $(if $($(quiet)cmd_sysmap),              \
  34           echo '  $($(quiet)cmd_sysmap)' &&)  \
  35         $(cmd_sysmap) $@ $(obj)/System.map;      \
  36         if [ $$? -ne 0 ]; then                   \
  37                 rm -f $@;                        \
  38                 /bin/false;                      \
  39         fi;                                      \
  40         echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
  41 endef
  42
  43 BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT))
  44 BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN))
  45 LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
  46                   --start-group $(BTLIBS) --end-group \
  47                   $(kallsyms.o) $(obj)/btfix.o
  48
  49 # Link the final image including btfixup'ed symbols.
  50 # This is a replacement for the link done in the top-level Makefile.
  51 # Note: No dependency on the prerequisite files since that would require
  52 # make to try check if they are updated - and due to changes
  53 # in gcc options (path for example) this would result in
  54 # these files being recompiled for each build.
  55 $(obj)/image: $(obj)/btfix.o FORCE
  56         $(call if_changed_rule,image)
  57
  58 $(obj)/zImage: $(obj)/image
  59         $(call if_changed,strip)
  60         @echo '  kernel: $@ is ready'
  61
  62 $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
  63         $(call if_changed,btfix)
  64
  65 endif
  66
  67 ifeq ($(CONFIG_SPARC64),y)
  68
  69 # Actual linking
  70 $(obj)/image: vmlinux FORCE
  71         $(call if_changed,strip)
  72         @echo '  kernel: $@ is ready'
  73
  74 $(obj)/zImage: $(obj)/image
  75         $(call if_changed,gzip)
  76         @echo '  kernel: $@ is ready'
  77
  78 $(obj)/vmlinux.aout: vmlinux FORCE
  79         $(call if_changed,elftoaout)
  80         @echo '  kernel: $@ is ready'
  81 else
  82
  83 # The following lines make a readable image for U-Boot.
  84 #  uImage   - Binary file read by U-boot
  85 #  uImage.o - object file of uImage for loading with a
  86 #             flash programmer understanding ELF.
  87
  88 OBJCOPYFLAGS_image.bin := -S -O binary -R .note -R .comment
  89 $(obj)/image.bin: $(obj)/image FORCE
  90         $(call if_changed,objcopy)
  91
  92 $(obj)/image.gz: $(obj)/image.bin
  93         $(call if_changed,gzip)
  94
  95 quiet_cmd_uimage = UIMAGE  $@
  96       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sparc -O linux -T kernel \
  97                -C gzip -a $(CONFIG_UBOOT_LOAD_ADDR) \
  98                -e $(CONFIG_UBOOT_ENTRY_ADDR) -n 'Linux-$(KERNELRELEASE)' \
  99                -d $< $@
 100
 101 quiet_cmd_uimage.o = UIMAGE.O $@
 102       cmd_uimage.o = $(LD) -Tdata $(CONFIG_UBOOT_FLASH_ADDR) \
 103                      -r -b binary $@ -o $@.o
 104
 105 targets += uImage
 106 $(obj)/uImage: $(obj)/image.gz
 107         $(call if_changed,uimage)
 108         $(call if_changed,uimage.o)
 109         @echo '  Image $@ is ready'
 110
 111 endif
 112
 113 $(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE
 114         $(call if_changed,elftoaout)
 115         $(call if_changed,piggy)