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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-04-28 13:45:36 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-04-28 13:45:36 -0400 |
| commit | 28ba53c07638f31b153e3a32672a6124d0ff2a97 (patch) | |
| tree | d89dfc7e3e9661b15d98e5192433121f5ac081c2 /Documentation/dontdiff | |
| parent | 0a790fe4389d88253563c5e22bea47e6d357b525 (diff) | |
unicode: refactor the rule for regenerating utf8data.h
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,
- 7373f4f83c71 ("kbuild: add implicit rules for parser generation")
- 6aaf49b495b4 ("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>
Diffstat (limited to 'Documentation/dontdiff')
| -rw-r--r-- | Documentation/dontdiff | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/dontdiff b/Documentation/dontdiff index ef25a066d952..93693775639f 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -176,6 +176,7 @@ mkprep mkregtable mktables mktree +mkutf8data modpost modules.builtin modules.order @@ -254,6 +255,7 @@ vsyscall_32.lds wanxlfw.inc uImage unifdef +utf8data.h wakeup.bin wakeup.elf wakeup.lds |