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From "Vladimir Beliaev" <vladimir.k.beli...@gmail.com>
Subject Re: [drlvm][init] -XX:vm.dlls is proposed to be -XX:gc.dll
Date Wed, 27 Jun 2007 13:33:52 GMT
Thank you for answer, Xiao Feng.

Since nobody objects I'm preparing property renaming patch...

Automated scripts holders - please be aware about this & get the related
scripts ready for update.
(I thing running with gc_cc.dll scripts are to be affected only)

Thanks
Vladimir Beliaev

2007/6/26, Xiao-Feng Li <xiaofeng.li@gmail.com>:
>
> Makes sense to me. The original option has unclear semantics. If some
> dlls are needed, they should be loaded by their requestor explicitly
> or by their requestor's command option. For example, if gc needs
> additional dlls, it can specify that as -XXgc.other_dlls=xxx; but this
> is a gc specific option, there is no need for the VM to have a general
> option for them.
>
> Thanks,
> xiaofeng
>
> On 6/25/07, Vladimir Beliaev <vladimir.k.beliaev@gmail.com> wrote:
> >  *I'd like to rename -XX:vm.dlls to -XX:gc.dll, because:*
> > (I'm reposting my question in the e-mail with right subject...)
> >
> > right now the http://harmony.apache.org/cmd_options.html says about this
> > property:
> >
> >   *-XX:vm.dlls=<list> * A PATH_SEPARATOR-delimited list of modular
> dynamic
> > libraries (GC/etc.) to load at startup.
> >
> > In fact its default value is "gc_gen.<dll>'. If one sets it to any valid
> > 'foo.<dll>' (like -XX:vm.dlls="foo.dll") then the "gc*.dll" is not
> found,
> > "gc_init" function pointer is not set & DRLVM crashes with 0x00000
> address
> > access (HARMONY-3934)... Also there can be only 1 GC.dll in DRLVM now,
> so it
> > should be "gc.dll" but not a not a "gc.dlls"...
> >
> > So in fact this 'vm.dlls' property semantics is: "set GC dll here".
> *That's
> > why I propose to rename it.*
> >
> > *Please pay attention that:*
> >
> > 1. it would affect the "running scripts" (like Cruise Control ones) -
> please
> > speak up if you have a procedure proposal for this renaming (or we just
> may
> > agree on commit time).
> >
> > 2. one may use this -XX:vm.dlls to set own DLL (other then GC one) -
> please
> > speak up if it is true & provide the particular example.
> >
> > *Please note that we also have:*
> >
> > -XX:em.dll=<dll-path> to set Execution Manager dynamic library
> > -XX:vm.other_natives_dlls=<dll-path-list> - I know the use case: set the
> > classlib native libraries to be preloaded during VM startup (I need to
> > double check if it is still used)...
> >
> > Thanks
> > --
> > Vladimir Beliaev
> > Intel Middleware Products Division
> >
>
>
> --
> http://xiao-feng.blogspot.com
>



-- 
Vladimir Beliaev
Intel Middleware Products Division

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