mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 08:19:28 +00:00
![Masahiro Yamada](/assets/img/avatar_default.png)
scripts/mkutf8data is used only when regenerating utf8data.h, which never happens in the normal kernel build. However, it is irrespectively built if CONFIG_UNICODE is enabled. Moreover, there is no good reason for it to reside in the scripts/ directory since it is only used in fs/unicode/. Hence, move it from scripts/ to fs/unicode/. In some cases, we bypass build artifacts in the normal build. The conventional way to do so is to surround the code with ifdef REGENERATE_*. For example, -7373f4f83c
("kbuild: add implicit rules for parser generation") -6aaf49b495
("crypto: arm,arm64 - Fix random regeneration of S_shipped") I rewrote the rule in a more kbuild'ish style. In the normal build, utf8data.h is just shipped from the check-in file. $ make [ snip ] SHIPPED fs/unicode/utf8data.h CC fs/unicode/utf8-norm.o CC fs/unicode/utf8-core.o CC fs/unicode/utf8-selftest.o AR fs/unicode/built-in.a If you want to generate utf8data.h based on UCD, put *.txt files into fs/unicode/, then pass REGENERATE_UTF8DATA=1 from the command line. The mkutf8data tool will be automatically compiled to generate the utf8data.h from the *.txt files. $ make REGENERATE_UTF8DATA=1 [ snip ] HOSTCC fs/unicode/mkutf8data GEN fs/unicode/utf8data.h CC fs/unicode/utf8-norm.o CC fs/unicode/utf8-core.o CC fs/unicode/utf8-selftest.o AR fs/unicode/built-in.a I renamed the check-in utf8data.h to utf8data.h_shipped so that this will work for the out-of-tree build. You can update it based on the latest UCD like this: $ make REGENERATE_UTF8DATA=1 fs/unicode/ $ cp fs/unicode/utf8data.h fs/unicode/utf8data.h_shipped Also, I added entries to .gitignore and dontdiff. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
38 lines
1 KiB
Makefile
38 lines
1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
obj-$(CONFIG_UNICODE) += unicode.o
|
|
obj-$(CONFIG_UNICODE_NORMALIZATION_SELFTEST) += utf8-selftest.o
|
|
|
|
unicode-y := utf8-norm.o utf8-core.o
|
|
|
|
$(obj)/utf8-norm.o: $(obj)/utf8data.h
|
|
|
|
# In the normal build, the checked-in utf8data.h is just shipped.
|
|
#
|
|
# To generate utf8data.h from UCD, put *.txt files in this directory
|
|
# and pass REGENERATE_UTF8DATA=1 from the command line.
|
|
ifdef REGENERATE_UTF8DATA
|
|
|
|
quiet_cmd_utf8data = GEN $@
|
|
cmd_utf8data = $< \
|
|
-a $(srctree)/$(src)/DerivedAge.txt \
|
|
-c $(srctree)/$(src)/DerivedCombiningClass.txt \
|
|
-p $(srctree)/$(src)/DerivedCoreProperties.txt \
|
|
-d $(srctree)/$(src)/UnicodeData.txt \
|
|
-f $(srctree)/$(src)/CaseFolding.txt \
|
|
-n $(srctree)/$(src)/NormalizationCorrections.txt \
|
|
-t $(srctree)/$(src)/NormalizationTest.txt \
|
|
-o $@
|
|
|
|
$(obj)/utf8data.h: $(obj)/mkutf8data $(filter %.txt, $(cmd_utf8data)) FORCE
|
|
$(call if_changed,utf8data)
|
|
|
|
else
|
|
|
|
$(obj)/utf8data.h: $(src)/utf8data.h_shipped FORCE
|
|
$(call if_changed,shipped)
|
|
|
|
endif
|
|
|
|
targets += utf8data.h
|
|
hostprogs-y += mkutf8data
|