Allow Python packages to be dropped

When building in a portage chroot, we do not have the environment needed
to build pylibfdt. It is instead build as a separate package.

Provide a build option to tell U-Boot to skip this part of the build. We
still need it to use binman, etc. but don't need it to build its
dependencies.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
[s/build bytes/builds bytes in tools.rst]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2023-08-31 11:20:52 -06:00 committed by Bin Meng
parent 1a075d4e0d
commit 48bf738e36
3 changed files with 20 additions and 0 deletions

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@ -485,6 +485,15 @@ export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
--exclude CVS --exclude .pc --exclude .hg --exclude .git
export PYTHON_ENABLE
# This is y if U-Boot should not build any Python tools or libraries. Typically
# you would need to set this if those tools/libraries (typically binman and
# pylibfdt) cannot be built by your environment and are provided separately.
ifeq ($(NO_PYTHON),)
PYTHON_ENABLE=y
endif
# ===========================================================================
# Rules shared between *config targets and build targets

9
doc/build/tools.rst vendored
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@ -45,3 +45,12 @@ Launch the MSYS2 shell of the MSYS2 environment, and do the following::
$ make tools-only_defconfig
$ make tools-only
Building without Python
-----------------------
The tools-only builds bytes pylibfdt by default. To disable this, use the
NO_PYTHON variable::
NO_PYTHON=1 make tools-only_defconfig tools-only

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@ -19,4 +19,6 @@ HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
# Added for U-Boot
ifeq ($(PYTHON_ENABLE),y)
subdir-$(CONFIG_PYLIBFDT) += pylibfdt
endif