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fdt: Build the new python libfdt module

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Build the upstream python libfdt module. At present the legacy module is
still built and is the one that it used. Future work will switch this
over.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-05-27 07:38:19 -06:00
parent 555ba4889c
commit ee95d10ba9
1 changed files with 31 additions and 0 deletions
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31
tools/Makefile
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@ -63,6 +63,16 @@ FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := common/image-sig.o
LIBFDT_CSRCS := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c \
fdt_empty_tree.c fdt_addresses.c fdt_overlay.c \
fdt_region.c
# Unfortunately setup.py below cannot handle srctree being ".." which it often
# is. It fails with an error like:
# Fatal error: can't create build/temp.linux-x86_64-2.7/../lib/libfdt/fdt.o:
# No such file or directory
# To fix this, use an absolute path.
libfdt_tree := $(shell readlink -f $(srctree)/lib/libfdt)
LIBFDT_SRCS := $(addprefix $(libfdt_tree)/, $(LIBFDT_CSRCS))
LIBFDT_SWIG := $(addprefix $(libfdt_tree)/, pylibfdt/libfdt.i)
LIBFDT_OBJS := $(addprefix lib/libfdt/, $(patsubst %.c, %.o, $(LIBFDT_CSRCS)))
RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := $(addprefix lib/rsa/, \
@ -114,6 +124,23 @@ mkimage-objs := $(dumpimage-mkimage-objs) mkimage.o
fit_info-objs := $(dumpimage-mkimage-objs) fit_info.o
fit_check_sign-objs := $(dumpimage-mkimage-objs) fit_check_sign.o
# Unfortunately setup.py (or actually the Python distutil implementation)
# puts files into the same directory as the .i file. We cannot touch the source
# directory, so we copy the .i file into the tools/ build subdirectory before
# calling setup. This directory is safe to write to. This ensures that we get
# all three files in $(obj)/tools: _libfdt.so, libfdt.py and libfdt_wrap.c
# The latter is a temporary file which we could actually remove.
tools/_libfdt.so: $(LIBFDT_SRCS) $(LIBFDT_SWIG)
cp $(LIBFDT_SWIG) tools/.
unset CC; \
unset CROSS_COMPILE; \
LDFLAGS="$(HOSTLDFLAGS)" CFLAGS= VERSION="u-boot-$(UBOOTVERSION)" \
CPPFLAGS="$(_hostc_flags)" OBJDIR=tools \
SOURCES="$(LIBFDT_SRCS) tools/libfdt.i" \
SWIG_OPTS="-I$(srctree)/lib/libfdt -I$(srctree)/lib" \
$(libfdt_tree)/pylibfdt/setup.py --quiet build_ext \
--build-lib tools
# Build a libfdt Python module if swig is available
# Use 'sudo apt-get install swig libpython-dev' to enable this
hostprogs-y += \
@ -219,6 +246,10 @@ clean-dirs := lib common
always := $(hostprogs-y)
# Build a libfdt Python module if swig is available
# Use 'sudo apt-get install swig libpython-dev' to enable this
always += $(if $(shell which swig 2> /dev/null),_libfdt.so)
# Generated LCD/video logo
LOGO_H = $(objtree)/include/bmp_logo.h
LOGO_DATA_H = $(objtree)/include/bmp_logo_data.h