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List: openjdk-hotspot-runtime-dev
Subject: Pls review 7116189 (XXS)
From: david.holmes () oracle ! com (David Holmes)
Date: 2011-11-29 2:48:35
Message-ID: 4ED44803.1020702 () oracle ! com
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On 29/11/2011 5:46 AM, Paul Hohensee wrote:
> 7116189: Export JVM_SetNativeThreadName from Hotspot.
>
> The initial Mac OSX port added a JVM entry point JVM_SetNativeThreadName
> for
> use by the JDK libraries, but failed to export it in libjvm.so on
> Solaris and Linux.
> Mike McMahon from the core libs team produced a fix, which is just to add
> JVM_SetNativeThreadName to the Solaris and Linux linker mapfiles.
>
> Webrev here:
>
> http://cr.openjdk.java.net/~phh/7116189.0
I has some discussions about this with Paul via email, not realizing the
review request was out here.
To clarify, neither Solaris nor Linux support JVM_SetNativeThreadName -
it is a no-op**. I assume this fix is needed to address build and/or
link issues with JDK code that wants to call this method?
David
-----
** pthread_setname_np is a non-portable extension to pthreads.
Apparently Linux supports it from glibc 2.12
http://stackoverflow.com/questions/2369738/can-i-set-the-name-of-a-thread-in-pthreads-linux
but I don't see it on our linux build machines and also not in Solaris.
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