Makefile 1.4 KB

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  1. include ../../scripts/Makefile.include
  2. CC = $(CROSS_COMPILE)gcc
  3. AR = $(CROSS_COMPILE)ar
  4. # Makefiles suck: This macro sets a default value of $(2) for the
  5. # variable named by $(1), unless the variable has been set by
  6. # environment or command line. This is necessary for CC and AR
  7. # because make sets default values, so the simpler ?= approach
  8. # won't work as expected.
  9. define allow-override
  10. $(if $(or $(findstring environment,$(origin $(1))),\
  11. $(findstring command line,$(origin $(1)))),,\
  12. $(eval $(1) = $(2)))
  13. endef
  14. # Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
  15. $(call allow-override,CC,$(CROSS_COMPILE)gcc)
  16. $(call allow-override,AR,$(CROSS_COMPILE)ar)
  17. # guard against environment variables
  18. LIB_H=
  19. LIB_OBJS=
  20. LIB_H += debugfs.h
  21. LIB_OBJS += $(OUTPUT)debugfs.o
  22. LIBFILE = liblk.a
  23. CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
  24. EXTLIBS = -lelf -lpthread -lrt -lm
  25. ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
  26. ALL_LDFLAGS = $(LDFLAGS)
  27. RM = rm -f
  28. $(LIBFILE): $(LIB_OBJS)
  29. $(QUIET_AR)$(RM) $@ && $(AR) rcs $(OUTPUT)$@ $(LIB_OBJS)
  30. $(LIB_OBJS): $(LIB_H)
  31. $(OUTPUT)%.o: %.c
  32. $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
  33. $(OUTPUT)%.s: %.c
  34. $(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $<
  35. $(OUTPUT)%.o: %.S
  36. $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
  37. clean:
  38. $(RM) $(LIB_OBJS) $(LIBFILE)
  39. .PHONY: clean