RFC: IcedTea7 JamVM selfhost patch - remove-sun.misc.Perf-debug-code

[Xerxes Rånby]

tis 2011-07-05 klockan 02:07 +0100 skrev Andrew John Hughes:
> On Thu, Jun 30, 2011 at 04:37:25PM +0200, Xerxes Rånby wrote:
> > Hi team,
> > 
> > The attached patch makes it possible for IcedTea 7 JamVM builds to be
> > selfhosting.
> > 
> > Some OpenJDK 7 classes makes internal use of the unofficial
> > sun.misc.Perf API to keep track of startup time. sun.misc.Perf itself
> > implements its functionality by using some special jni calls inside of
> > Hotspot.
> > 
> > By reducing the internal use of sun.misc.Perf in the OpenJDK 7 classes
> > makes it possible to use the OpenJDK 7 classes with non-Hotspot JVMs.
> 
> No.  If this is needed for JamVM, it should be a JamVM-specific patch,
> not applied generally.

OK, I have attached a new JamVM-specific patch that only get applied
when performing a JamVM build.

ChangeLog entry would be:
2011-07-05  Xerxes Rånby  <xerxes at zafena.se>

        JamVM: Is self-hosting.
        * patches/jamvm/remove-sun.misc.Perf-debug-code.patch: New
patch.
        * Makefile.am:
        (ICEDTEA_PATCHES): Apply new patch when building JamVM.
        * HACKING: Updated.
	* NEWS: Updated.


Ok to push?

Cheers
Xerxes
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