RFR: 8257733: Move module-specific data from make to respective module [v2]

[Magnus Ihse Bursie]

On Tue, 8 Dec 2020 15:25:47 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> The mapping and nr tables, and the *-X.java.template files in make/data/charsetmapping are used to generate source code for the java.base and jdk.charsets modules. The stdcs-$OS files configure the package and module that each charset go into. If the tables used to generate the source files are moved to src/java.base then make/modules/jdk.charsets/Gensrc.gmk will probably need a new home too.
>
> Is there a plan to move make/jdk/src/classes/build/tools/intpoly into java.base as well?
> 
> Update: I see all subdirs in tools are still there.

@wangweij Moving build tools is a related, but separate, question, which is addressed by https://bugs.openjdk.java.net/browse/JDK-8241463.

I send out a review earlier this year (see https://mail.openjdk.java.net/pipermail/build-dev/2020-March/027038.html), but there were differing opinions on what the proper placement of these tools should be, and the discussion kind of fizzled out without reaching a conclusion.

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PR: https://git.openjdk.java.net/jdk/pull/1611