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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 <yamada.m@jp.panasonic.com>
This commit is contained in:
Masahiro Yamada 2014-02-04 17:24:14 +09:00 committed by Tom Rini
parent a0b14c3f0a
commit 5651ccffa4
4 changed files with 34 additions and 38 deletions
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35
config.mk
View File

@ -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 $@ )
#########################################################################

4
examples/api/Makefile
View File

@ -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 $@ $<

2
post/lib_powerpc/fpu/Makefile
View File

@ -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

31
scripts/Makefile.build
View File

@ -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