Re: [RFC PATCH 3/3] kbuild: generate *.tab.c and *.tab.h during build

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On Sat, Aug 19, 2017 at 3:49 AM, Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:
> *.tab.[ch] files are artifacts generated from *.y by using bison.
> Instead of running bison, we conventionally version-control
> *.tab.[ch]_shipped files and copy them to *.tab.[ch] during build.
>
> It is true that this approach can minimize external tool dependency,
> but we need to update the shipped files from time to time.  This
> commit switches to build-time generation of the intermediate C files.

When do we need to update them?

>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> ---
>
>  Documentation/process/changes.rst    |   12 +
>  scripts/Makefile.lib                 |   14 +-
>  scripts/dtc/Makefile                 |    9 +-
>  scripts/dtc/dtc-parser.tab.c_shipped | 2303 -------------------------------
>  scripts/dtc/dtc-parser.tab.h_shipped |  125 --

The script to import dtc normally creates these. If you change this,
please make sure the script still works.

>  scripts/genksyms/Makefile            |    5 +-
>  scripts/genksyms/parse.tab.c_shipped | 2394 --------------------------------
>  scripts/genksyms/parse.tab.h_shipped |  119 --
>  scripts/kconfig/Makefile             |    2 +-
>  scripts/kconfig/zconf.tab.c_shipped  | 2471 ----------------------------------
>  10 files changed, 24 insertions(+), 7430 deletions(-)
>  delete mode 100644 scripts/dtc/dtc-parser.tab.c_shipped
>  delete mode 100644 scripts/dtc/dtc-parser.tab.h_shipped
>  delete mode 100644 scripts/genksyms/parse.tab.c_shipped
>  delete mode 100644 scripts/genksyms/parse.tab.h_shipped
>  delete mode 100644 scripts/kconfig/zconf.tab.c_shipped
>
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