[jira] Commented: (HARMONY-3745) [drlvm][gc][jit] server.emconf should be unified both for gc_cc and gc_gen

["Mikhail Fursov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-3745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12491283 ] 

Mikhail Fursov commented on HARMONY-3745:
-----------------------------------------

The problem is where to keep Java helper's classes and who will add them into bootstrap classpath.
Today we keep GC_GEN and GC_CC Java classes in separate JARs and both of them are in bootstrap classpath.

> [drlvm][gc][jit] server.emconf should be unified both for gc_cc and gc_gen
> --------------------------------------------------------------------------
>
>                 Key: HARMONY-3745
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3745
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>            Reporter: Sergey Kuksenko
>
> Currently, it is impossible to use -Xem:server mode in case of gc_gen turn on.
> server.emconf should be modified for gc_gen usage.
> Modification is  simple -change all "gc_cc" substrings into "gc_gen". But it is more convinient to have unified emconf file in both cases.
> All gc versions dependences are related  to allocation helpers inline.
> 1) setup class name where allocation helpers are existed.
> -XDjit.SD2_OPT.arg.optimizer.inline_helpers.newObj_className=org/apache/harmony/drlvm/gc_cc/GCHelper
> gc_cc's helpers are in "gc_cc"  package and gc_gen's in "gc_gen" respectively.
> Usage "gc" package will solve problem here.
> 2) other two prorties set up which class from which jar-file should be used.
> -Dvm.components.gc_cc.startupclass=org.apache.harmony.drlvm.gc_cc.GCHelper
> -XDvm.component.classpath.gc_cc=gc_cc.jar
> Storing such properties in emconf file is a source of misconfigurations and errors.
> Component related properties should be set at moment of library initialization by the library itself.

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