From 5651ccffa4aa8ac36961f376927df253b7d0c035 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 4 Feb 2014 17:24:14 +0900 Subject: Makfile: move suffix rules to Makefile.build This commit moves suffix rules from config.mk to scripts/Makefile.build, which will allow us to switch smoothly to real Kbuild. Note1: post/lib_powerpc/fpu/Makefile has its own rule to compile C sources. We need to tweak it to keep the same behavior. Note2: There are two file2 with the same name: arch/arm/lib/crt0.S and eamples/api/crt0.S. To keep the same build behavior, examples/api/Makefile also has to be treaked. Signed-off-by: Masahiro Yamada --- scripts/Makefile.build | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'scripts/Makefile.build') diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 50c0394d5f..1b3d77fea2 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -67,6 +67,37 @@ endif ######################################################################### +# Allow boards to use custom optimize flags on a per dir/file basis +ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) +ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) +EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR)) +ALL_CFLAGS += $(EXTRA_CPPFLAGS) + +# The _DEP version uses the $< file target (for dependency generation) +# See rules.mk +EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \ + $(CPPFLAGS_$(BCURDIR)) +$(obj)%.s: %.S + $(CPP) $(ALL_AFLAGS) -o $@ $< +$(obj)%.o: %.S + $(CC) $(ALL_AFLAGS) -o $@ $< -c +$(obj)%.o: %.c +ifneq ($(CHECKSRC),0) + $(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $< +endif + $(CC) $(ALL_CFLAGS) -o $@ $< -c +$(obj)%.i: %.c + $(CPP) $(ALL_CFLAGS) -o $@ $< -c +$(obj)%.s: %.c + $(CC) $(ALL_CFLAGS) -o $@ $< -c -S + +# If the list of objects to link is empty, just create an empty built-in.o +cmd_link_o_target = $(if $(strip $1),\ + $(LD) $(LDFLAGS) -r -o $@ $1,\ + rm -f $@; $(AR) rcs $@ ) + +######################################################################### + # defines $(obj).depend target include $(TOPDIR)/rules.mk -- cgit v1.2.1