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

Erik Joelsson erik.joelsson at oracle.com
Mon Feb 24 15:34:01 UTC 2020


Looks good to me as long as everyone is happy with the descriptions.

/Erik

On 2020-02-24 00:53, Magnus Ihse Bursie wrote:
> 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
>>
>



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