Makefile.rules

include include/config

depfile = $(dir $@).$(notdir $@).d
gendeps = -Wp,-MD,$(depfile) -Wp,-MT,$(dir $@)$@
p_flags = $(gendeps) $(PFLAGS) $(PFLAGS-y)
c_flags	= $(p_flags) $(CFLAGS) $(CFLAGS-y)
a_flags	= $(p_flags) $(AFLAGS) $(AFLAGS-y)

# C sources
# ---------------------------------------------------------------------------

%.s: %.c
	@echo "CC	$@"
	$(Q)$(CC) $(c_flags) -fverbose-asm -S -o $@ $<

%.i: %.c FORCE
	@echo "CPP	$@"
	$(Q)$(CPP) $(c_flags) -dD -o $@ $<
	$(Q)less $@

%.o: %.c
	@echo "CC	$@"
	$(Q)$(CC) $(c_flags) -c -o $@ $<

# assembly sources
# ---------------------------------------------------------------------------

%.s: %.S FORCE
	@echo "CPP	$@"
	$(Q)$(CPP) $(a_flags) -dD -o $@ $<

%.o: %.S
	@echo "AS	$@"
	$(Q)$(CC) $(a_flags) -c -o $@ $<

# misc
# ---------------------------------------------------------------------------
%.lds: %.lds.in
	@echo "LDS	$@"
	$(Q)$(CPP) -x assembler-with-cpp -P -D__ASSEMBLY__ $(p_flags)   -o $@ $<
	@sed -i 's/lds.o:/lds:/' $(depfile)

%.bin: %
	@echo "BIN	$<"
	$(Q)$(OBJCOPY) -O binary $< $@

# archive
# ---------------------------------------------------------------------------
%.a:
	@echo "AR	$@"
	@if [ -n "$(filter-out $^,$(deps_$@))" ]; then rm -f $@; fi	# rm the lib if it contains old members
	$(Q)$(AR) crs $@ $^
	@echo "deps_$@ := $^" > $(depfile)
# ---------------------------------------------------------------------------

.PHONY: FORCE

FORCE: