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 yamada.m@jp.panasonic.com ---
Changes in v3: None Changes in v2: None
config.mk | 35 ----------------------------------- examples/api/Makefile | 4 ++-- post/lib_powerpc/fpu/Makefile | 2 +- scripts/Makefile.build | 31 +++++++++++++++++++++++++++++++ 4 files changed, 34 insertions(+), 38 deletions(-)
diff --git a/config.mk b/config.mk index 07afb35..b08be7a 100644 --- a/config.mk +++ b/config.mk @@ -318,38 +318,3 @@ endif export HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE \ AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE export CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS - -######################################################################### - -# 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 $@ ) - -######################################################################### diff --git a/examples/api/Makefile b/examples/api/Makefile index f770859..52f4368 100644 --- a/examples/api/Makefile +++ b/examples/api/Makefile @@ -50,9 +50,9 @@ $(obj)demo.bin: $(obj)demo $(OBJCOPY) -O binary $< $@ 2>/dev/null
# Rule to build generic library C files -$(obj)%.o: $(SRCTREE)/lib/%.c +$(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/lib/%.c $(CC) -g $(CFLAGS) -c -o $@ $<
# Rule to build architecture-specific library assembly files -$(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S +$(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S $(CC) -g $(CFLAGS) -c -o $@ $< diff --git a/post/lib_powerpc/fpu/Makefile b/post/lib_powerpc/fpu/Makefile index ae56a82..a7aa5bc 100644 --- a/post/lib_powerpc/fpu/Makefile +++ b/post/lib_powerpc/fpu/Makefile @@ -18,7 +18,7 @@ obj-y += darwin-ldouble.o CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//) CFLAGS += -mhard-float -fkeep-inline-functions
-$(obj)%.o: %.c +$(addprefix $(obj),$(obj-y)): $(obj)%.o: %.c $(CC) $(ALL_CFLAGS) -o $@.fp $< -c $(OBJCOPY) -R .gnu.attributes $@.fp $@ rm -f $@.fp diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 50c0394..1b3d77f 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