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-rw-r--r--tools/Makefile54
1 files changed, 35 insertions, 19 deletions
diff --git a/tools/Makefile b/tools/Makefile
index 2fc4a58..cb1683e 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -60,9 +60,21 @@ hostprogs-$(CONFIG_FIT_SIGNATURE) += fit_info fit_check_sign
FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := common/image-sig.o
# Flattened device tree objects
-LIBFDT_OBJS := $(addprefix lib/libfdt/, \
- fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_wip.o \
- fdt_region.o fdt_sw.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/, \
rsa-sign.o rsa-verify.o rsa-checksum.o \
rsa-mod-exp.o)
@@ -112,22 +124,22 @@ 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
-# Build a libfdt Python module if swig is available
-# Use 'sudo apt-get install swig libpython-dev' to enable this
-hostprogs-y += \
- $(if $(shell which swig 2> /dev/null),_libfdt.so)
-_libfdt.so-sharedobjs += $(LIBFDT_OBJS)
-libfdt:
-
-tools/_libfdt.so: $(patsubst %.o,%.c,$(LIBFDT_OBJS)) tools/libfdt_wrap.c
- LDFLAGS="$(HOSTLDFLAGS)" CFLAGS= ${PYTHON} $(srctree)/lib/libfdt/setup.py \
- "$(_hostc_flags)" $^
- mv _libfdt.so $@
-
-tools/libfdt_wrap.c: $(srctree)/lib/libfdt/libfdt.swig
- swig -python -o $@ $<
-
-# TODO(sjg@chromium.org): Is this correct on Mac OS?
+# 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" \
+ $(libfdt_tree)/pylibfdt/setup.py --quiet build_ext \
+ --build-lib tools
ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
@@ -216,6 +228,10 @@ 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