Makefile 2.2 KB

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