rules.mk 2.4 KB

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  1. #
  2. # (C) Copyright 2006
  3. # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. #
  5. # See file CREDITS for list of people who contributed to this
  6. # project.
  7. #
  8. # This program is free software; you can redistribute it and/or
  9. # modify it under the terms of the GNU General Public License as
  10. # published by the Free Software Foundation; either version 2 of
  11. # the License, or (at your option) any later version.
  12. #
  13. # This program is distributed in the hope that it will be useful,
  14. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. # GNU General Public License for more details.
  17. #
  18. # You should have received a copy of the GNU General Public License
  19. # along with this program; if not, write to the Free Software
  20. # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. # MA 02111-1307 USA
  22. #
  23. #########################################################################
  24. _depend: $(obj).depend
  25. # Split the source files into two camps: those in the current directory, and
  26. # those somewhere else. For the first camp we want to support CPPFLAGS_<fname>
  27. # and for the second we don't / can't.
  28. PWD_SRCS := $(filter $(notdir $(SRCS)),$(SRCS))
  29. OTHER_SRCS := $(filter-out $(notdir $(SRCS)),$(SRCS))
  30. # This is a list of dependency files to generate
  31. DEPS := $(basename $(patsubst %,$(obj).depend.%,$(PWD_SRCS)))
  32. # Join all the dependencies into a single file, in three parts
  33. # 1 .Concatenate all the generated depend files together
  34. # 2. Add in the deps from OTHER_SRCS which we couldn't process
  35. # 3. Add in the HOSTSRCS
  36. $(obj).depend: $(src)Makefile $(TOPDIR)/config.mk $(DEPS) $(OTHER_SRCS) \
  37. $(HOSTSRCS)
  38. cat /dev/null $(DEPS) >$@
  39. @for f in $(OTHER_SRCS); do \
  40. g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
  41. $(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
  42. done
  43. @for f in $(HOSTSRCS); do \
  44. g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
  45. $(HOSTCC) -M $(HOSTCPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
  46. done
  47. MAKE_DEPEND = $(CC) -M $(CPPFLAGS) $(EXTRA_CPPFLAGS_DEP) \
  48. -MQ $(addsuffix .o,$(obj)$(basename $<)) $< >$@
  49. $(obj).depend.%: %.c
  50. $(MAKE_DEPEND)
  51. $(obj).depend.%: %.S
  52. $(MAKE_DEPEND)
  53. $(HOSTOBJS): $(obj)%.o: %.c
  54. $(HOSTCC) $(HOSTCFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
  55. $(NOPEDOBJS): $(obj)%.o: %.c
  56. $(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
  57. #########################################################################