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
   9 hostprogs-y     := piggyback_32 piggyback_64 btfixupprep
  10 targets         := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout
  11 clean-files     := System.map
  12
  13 quiet_cmd_elftoaout     = ELFTOAOUT $@
  14       cmd_elftoaout     = $(ELFTOAOUT) $(obj)/image -o $@
  15
  16 ifeq ($(CONFIG_SPARC32),y)
  17 quiet_cmd_piggy         = PIGGY   $@
  18       cmd_piggy         = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG)
  19 quiet_cmd_btfix         = BTFIX   $@
  20       cmd_btfix         = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
  21 quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
  22       cmd_sysmap        = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
  23 quiet_cmd_image = LD      $@
  24       cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
  25 quiet_cmd_strip = STRIP   $@
  26       cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $(obj)/image -o $@
  27
  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
  61 $(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE
  62         $(call if_changed,elftoaout)
  63         $(call if_changed,piggy)
  64
  65 $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
  66         $(call if_changed,btfix)
  67
  68 endif
  69
  70 ifeq ($(CONFIG_SPARC64),y)
  71 quiet_cmd_piggy     = PIGGY   $@
  72       cmd_piggy     = $(obj)/piggyback_64 $@ System.map $(ROOT_IMG)
  73 quiet_cmd_strip     = STRIP   $@
  74       cmd_strip     = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@
  75
  76
  77 # Actual linking
  78 $(obj)/image: vmlinux FORCE
  79         $(call if_changed,strip)
  80         @echo '  kernel: $@ is ready'
  81
  82 $(obj)/zImage: $(obj)/image
  83         $(call if_changed,gzip)
  84
  85 $(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE
  86         $(call if_changed,elftoaout)
  87         $(call if_changed,piggy)
  88         @echo '  kernel: $@ is ready'
  89
  90 $(obj)/vmlinux.aout: vmlinux FORCE
  91         $(call if_changed,elftoaout)
  92         @echo '  kernel: $@ is ready'
  93 endif
  94