linux/arch/sparc/boot/Makefile
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   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
   6ROOT_IMG        := /usr/src/root.img
   7ELFTOAOUT       := elftoaout
   8
   9hostprogs-y     := piggyback btfixupprep
  10targets         := tftpboot.img btfix.o btfix.S image
  11
  12quiet_cmd_elftoaout     = ELFTOAOUT $@
  13      cmd_elftoaout     = $(ELFTOAOUT) $(obj)/image -o $@
  14quiet_cmd_piggy         = PIGGY   $@
  15      cmd_piggy         = $(obj)/piggyback $@ $(obj)/System.map $(ROOT_IMG)
  16quiet_cmd_btfix         = BTFIX   $@
  17      cmd_btfix         = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
  18quiet_cmd_sysmap        = SYSMAP  $(obj)/System.map
  19      cmd_sysmap        = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
  20quiet_cmd_image = LD      $@
  21      cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
  22quiet_cmd_strip = STRIP   $@
  23      cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $(obj)/image -o $@
  24
  25
  26define rule_image
  27        $(if $($(quiet)cmd_image),               \
  28          echo '  $($(quiet)cmd_image)' &&)      \
  29          $(cmd_image);                          \
  30        $(if $($(quiet)cmd_sysmap),              \
  31          echo '  $($(quiet)cmd_sysmap)' &&)  \
  32        $(cmd_sysmap) $@ $(obj)/System.map;      \
  33        if [ $$? -ne 0 ]; then                   \
  34                rm -f $@;                        \
  35                /bin/false;                      \
  36        fi;                                      \
  37        echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
  38endef
  39
  40BTOBJS := $(HEAD_Y) $(INIT_Y)
  41BTLIBS := $(CORE_Y) $(LIBS_Y) $(DRIVERS_Y) $(NET_Y)
  42LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
  43                  --start-group $(BTLIBS) --end-group \
  44                  $(kallsyms.o) $(obj)/btfix.o
  45
  46# Link the final image including btfixup'ed symbols.
  47# This is a replacement for the link done in the top-level Makefile.
  48# Note: No dependency on the prerequisite files since that would require
  49# make to try check if they are updated - and due to changes
  50# in gcc options (path for example) this would result in
  51# these files being recompiled for each build.
  52$(obj)/image: $(obj)/btfix.o FORCE
  53        $(call if_changed_rule,image)
  54
  55$(obj)/zImage: $(obj)/image
  56        $(call if_changed,strip)
  57
  58$(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
  59        $(call if_changed,elftoaout)
  60        $(call if_changed,piggy)
  61
  62$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
  63        $(call if_changed,btfix)
  64