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Date:      Wed, 2 Aug 2006 16:13:34 -0400 (EDT)
From:      Daniel Eischen <eischen@vigrid.com>
To:        John Birrell <jb@what-creek.com>
Cc:        freebsd-current@freebsd.org, Tobias Gro?er <bsdlists@gmx.de>
Subject:   Re: DTRACE build failure (/usr/obj/usr/src/tmp/usr/bin/ld: cannot find -lpthread)
Message-ID:  <Pine.GSO.4.64.0608021611310.8714@sea.ntplx.net>
In-Reply-To: <20060802194817.GA53062@what-creek.com>
References:  <1154527524.93666.22.camel@tobias.home.web-wahnsinn.de> <20060802194817.GA53062@what-creek.com>

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On Wed, 2 Aug 2006, John Birrell wrote:

> On Wed, Aug 02, 2006 at 04:05:24PM +0200, Tobias Gro?er wrote:
>>
>> Unfortunally I am not able to finish the build because it always breaks
>> in /usr/src/cddl/usr.bin/ctfconvert with this ld-error:
>> /usr/obj/usr/src/tmp/usr/bin/ld: cannot find -lpthread
>
> Sorry. At the moment the dtrace project has an experimental implementation of
> threads merged into libc and you need to enable this by adding WITH_LIBC_THREADS=1
> to /etc/make.conf. Then it will build.
>
> Also, since the KSE code in the kernel doesn't handle signals properly in a
> many-cpu system, in order to make progress on sun4v, the KSE code has been
> removed. We really need to try to make it a kernel option so that we can compare
> the thread implementations. Making KSE a kernel option is very messy, though.

KSE doesn't yet work on sparc64, which is why libc_r and libthr are
used for that platform.

-- 
DE



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