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fdt: Makefile: Build python libfdt library if needed

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This is needed by binman and dtoc, so if those are being used, check that
the library is present and complain if not. Make sure that any error
appears on stderr so that buildman notices it.

This means that the fallback library (which uses fdtget) will not be used
anymore and swig will need to be installed to use binman / dtoc.

This affects any board which uses binman (currently sunxi and x86) or dtoc
(anything that uses CONFIG_SPL_OF_PLATDATA, currently some rockchip
boards).

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-05-27 07:38:23 -06:00
parent b4360206a4
commit e38ffc4267
2 changed files with 28 additions and 6 deletions
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17
Makefile
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@ -1116,7 +1116,7 @@ cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
$(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
$(call if_changed,binman)
OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
@ -1125,7 +1125,8 @@ u-boot-x86-16bit.bin: u-boot FORCE
endif
ifneq ($(CONFIG_ARCH_SUNXI),)
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
checkbinman FORCE
$(call if_changed,binman)
endif
@ -1354,6 +1355,18 @@ $(version_h): include/config/uboot.release FORCE
$(timestamp_h): $(srctree)/Makefile FORCE
$(call filechk,timestamp.h)
checkbinman: tools
@if ! ( echo 'import libfdt' | ( PYTHONPATH=tools python )); then \
echo >&2; \
echo >&2 '*** binman needs the Python libfdt library.'; \
echo >&2 '*** Either install it on your system, or try:'; \
echo >&2 '***'; \
echo >&2 '*** sudo apt-get install swig libpython-dev'; \
echo >&2 '***'; \
echo >&2 '*** to have U-Boot build its own version.'; \
false; \
fi
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds = LDS $@
cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \

17
scripts/Makefile.spl
View file

@ -257,14 +257,12 @@ PHONY += dts_dir
dts_dir:
$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
$(call if_changed,dtoch)
$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
$(call if_changed,dtocc)
dtoc: #$(objtree)/tools/_libfdt.so
ifdef CONFIG_SAMSUNG
ifdef CONFIG_VAR_SIZE_SPL
VAR_SIZE_PARAM = --vs
@ -357,6 +355,17 @@ ifneq ($(cmd_files),)
include $(cmd_files)
endif
checkdtoc: tools
@if ! ( echo 'import libfdt' | ( PYTHONPATH=tools python )); then \
echo '*** dtoc needs the Python libfdt library. Either '; \
echo '*** install it on your system, or try:'; \
echo '***'; \
echo '*** sudo apt-get install swig libpython-dev'; \
echo '***'; \
echo '*** to have U-Boot build its own version.'; \
false; \
fi
PHONY += FORCE
FORCE: