FW: Porting OpenJDK 6 to Stratus OpenVOS on IA32 -- %EBP and theHotSpot server compiler

Barnes, Richard Richard.Barnes at stratus.com
Thu Dec 17 08:42:34 PST 2009


Hi Dalibor,

I have managed to solve this on my own by using conditional compilation to make sure that %EBP is not part of most reg_classes used for register allocation on VOS.  I'm on to other problems.

Thanks for the tip, though.

Richard

-----Original Message-----
From: Dalibor.Topic at Sun.COM [mailto:Dalibor.Topic at Sun.COM] 
Sent: Thursday, December 17, 2009 11:36 AM
To: Barnes, Richard
Cc: 'porters-dev at openjdk.java.net'
Subject: Re: FW: Porting OpenJDK 6 to Stratus OpenVOS on IA32 -- %EBP and theHotSpot server compiler

Barnes, Richard wrote:
> There is a comment in
> hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86CurrentFrameGuess.java
> that says that EBP is not guaranteed to be valid for compiled code.  In
> the context of this code that fact is considered a nuisance for
> debugging, but not a show-stopper.

Hi Richard,

I believe that this question is best suited for the hotspot-dev mailing list.

cheers,
dalibor topic
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