arch/sparc/boot/Makefile

   1 # $Id: Makefile,v 1.10 2000/02/23 08:17:46 jj Exp $
   2 # Makefile for the Sparc boot stuff.
   3 #
   4 # Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   5 # Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
   6
   7 ROOT_IMG        := /usr/src/root.img
   8 ELFTOAOUT       := elftoaout
   9
  10 hostprogs-y     := piggyback btfixupprep
  11 targets         := tftpboot.img btfix.o btfix.S image
  12
  13 quiet_cmd_elftoaout     = ELFTOAOUT $@
  14       cmd_elftoaout     = $(ELFTOAOUT) $(obj)/image -o $@
  15 quiet_cmd_piggy         = PIGGY   $@
  16       cmd_piggy         = $(obj)/piggyback $@ $(obj)/System.map $(ROOT_IMG)
  17 quiet_cmd_btfix         = BTFIX   $@
  18       cmd_btfix         = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
  19 quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
  20       cmd_sysmap        = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
  21 quiet_cmd_image = LD      $@
  22       cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
  23
  24 define rule_image
  25         $(if $($(quiet)cmd_image),               \
  26           echo '  $($(quiet)cmd_image)' &&)      \
  27           $(cmd_image);                          \
  28         $(if $($(quiet)cmd_sysmap),              \
  29           echo '  $($(quiet)cmd_sysmap)' &&)  \
  30         $(cmd_sysmap) $@ $(obj)/System.map;      \
  31         if [ $$? -ne 0 ]; then                   \
  32                 rm -f $@;                        \
  33                 /bin/false;                      \
  34         fi;                                      \
  35         echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
  36 endef
  37
  38 BTOBJS := $(HEAD_Y) $(INIT_Y)
  39 BTLIBS := $(CORE_Y) $(LIBS_Y) $(DRIVERS_Y) $(NET_Y)
  40 LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
  41                   --start-group $(BTLIBS) --end-group \
  42                   $(kallsyms.o) $(obj)/btfix.o
  43
  44 # Link the final image including btfixup'ed symbols.
  45 # This is a replacement for the link done in the top-level Makefile.
  46 # Note: No dependency on the prerequisite files since that would require
  47 # make to try check if they are updated - and due to changes
  48 # in gcc options (path for example) this would result in
  49 # these files being recompiled for each build.
  50 $(obj)/image: $(obj)/btfix.o FORCE
  51         $(call if_changed_rule,image)
  52
  53 $(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
  54         $(call if_changed,elftoaout)
  55         $(call if_changed,piggy)
  56
  57 $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
  58         $(call if_changed,btfix)