RFR: JDK-8201483 Make it possible to disable JVM features (original) (raw)

Magnus Ihse Bursie magnus.ihse.bursie at oracle.com
Thu Apr 12 16:53:39 UTC 2018

12 apr. 2018 kl. 17:38 skrev Erik Joelsson <erik.joelsson at oracle.com>:

Looks good. Especially adding those # header lines in basics.m4!

Thanks!

I'm actually thinking about splitting out a utils.m4 from basics.m4, for these kinds of helper functions. Sounds ok?

I guess a future followup now is to get rid of the individual enable/disable args that are now redundant.

Yes, that is the goal.

/Magnus

/Erik

On 2018-04-12 04:39, Magnus Ihse Bursie wrote: It is currently easy to add new JVM features to the JVM build, but it is not possible to remove features. With this change, features can be both added or removed from the default set. They are added using --with-jvm-features=f1,f2 and removed using --with-jvm-features=-f1,-f2. The syntax can be combined, so --with-jvm-features=dtrace,-nmt will enable dtrace but disable native memory tracking. I also included some additional code cleanup and fixes, such as printing the JVM feature set at the summary. Bug: https://bugs.openjdk.java.net/browse/JDK-8201483 WebRev: http://cr.openjdk.java.net/~ihse/JDK-8201483-disable-JVM-features/webrev.01

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