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

[Erik Gahlin]

jfr should be JDK Flight Recorder.

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