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Re: anybody tried NPTL?

To: Jun Sun <jsun@mvista.com>
Subject: Re: anybody tried NPTL?
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 23 Aug 2004 21:25:20 +0200
Cc: Daniel Jacobowitz <dan@debian.org>, Dominic Sweetman <dom@mips.com>, linux-mips@linux-mips.org
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On Mon, Aug 23, 2004 at 10:37:31AM -0700, Jun Sun wrote:

> Are you implying one can implement TLS support without changing O32
> ABI?  Interesting...
> 
> I know Boris Hu has tried to implemented NPTL with another approach which
> does not rely on TLS support (use "--without-tls").  According to him
> this approach is getting harder these days.

The whole TLS pointer thing is about making TLS more efficient.  If
you wanted to use TLS without any kernel changes you could do that
based on the THREAD result value of pthread_create or something like
that.  It'd work but it'd also not be terribly efficient ...

  Ralf

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