From ee95d10ba95092d41dfd740628b04f2b8e9cc8f6 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sat, 27 May 2017 07:38:19 -0600 Subject: [PATCH] fdt: Build the new python libfdt module 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 --- tools/Makefile | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/tools/Makefile b/tools/Makefile index cd08d3b33b..bc411e4ae4 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -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