RFR: JDK-8239789 Follow-up on JVM feature rewrite

[Magnus Ihse Bursie]

On 2020-02-21 16:36, Magnus Ihse Bursie wrote:
> On 2020-02-21 16:15, Erik Gahlin wrote:
>> jfr should be JDK Flight Recorder.
> Thanks, I should have checked and not guessed. :)
>
> I updated the code but will not send out a new webrev.

Actually, I am sending out a new webrev, just to make sure I do this by 
the book. :)

WebRev: 
http://cr.openjdk.java.net/~ihse/JDK-8239789-jvm-features-followup/webrev.02

Changes since last webrev:

* Fixed expansion of JFR
* Replaced patsubst with m4_bpatsubst in UTIL_ALIASED_ARG_ENABLE
* Merged with JDK-8239708, meaning changes in basics.m4 moved to util.m4.

/Magnus


>
> /Magnus
>
>>
>> Erik
>>
>> On 2020-02-21 16:05, Magnus Ihse Bursie wrote:
>>> The JVM feature rewrite was actually somewhat of a step backwards in 
>>> terms of presenting information for the user what different 
>>> configure arguments do.
>>>
>>> I've compensated for this by making it far better! :) Now we get a 
>>> list like this:
>>>
>>>   aot                     enable ahead of time compilation (AOT)
>>>   cds                     enable class data sharing (CDS)
>>>   compiler1               enable hotspot compiler C1
>>>   compiler2               enable hotspot compiler C2
>>>   dtrace                  enable dtrace support
>>>   epsilongc               include the epsilon (no-op) garbage collector
>>>   g1gc                    include the G1 garbage collector
>>>   graal                   enable Graal (jdk.internal.vm.compiler)
>>>   jfr                     enable Java Flight Recorder (JFR)
>>>   jni-check               enable -Xcheck:jni support
>>>   jvmci                   enable JVM Compiler Interface (JVMCI)
>>>   jvmti                   enable Java Virtual Machine Tool Interface 
>>> (JVM TI)
>>>   link-time-opt           enable link time optimization
>>>   management              enable java.lang.management API support
>>>   minimal                 support building variant 'minimal'
>>>   nmt                     include native memory tracking (NMT)
>>>   parallelgc              include the parallel garbage collector
>>>   serialgc                include the serial garbage collector
>>>   services                enable diagnostic services and client 
>>> attaching
>>>   shenandoahgc            include the Shenandoah garbage collector
>>>   static-build            build static library instead of dynamic
>>>   vm-structs              export JVM structures to the 
>>> Serviceablility Agent
>>>   zero                    support building variant 'zero'
>>>   zgc                     include the ZGC garbage collector
>>>
>>> Also, I missed using the recommended m4_ prefix on some m4 
>>> functions. This patch also corrects this.
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8239789
>>> WebRev: 
>>> http://cr.openjdk.java.net/~ihse/JDK-8239789-jvm-features-followup/webrev.01
>>>
>>> /Magnus
>