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From: David Xu <davidxu@freebsd.org>
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Date: Sat, 8 Apr 2006 13:42:36 +0800
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Cc: Csaba Henk <csaba-ml@creo.hu>, Daniel Eischen <deischen@freebsd.org>
Subject: Re: switching threading libraries
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On Friday 07 April 2006 22:08, Csaba Henk wrote:
> On Fri, Apr 07, 2006 at 09:10:56AM -0400, Daniel Eischen wrote:
> > Only between libthr and libpthread.  libc_r doesn't have symbol
> > versioning.
>
> That's sad -- given, as noted elsewhere, libc_r is the best suitable
> for tracing.
>
> Will it remain like this or can we expect a symver'd libc_r
> in due time?
>
> Regards,
> Csaba

libc_r does not have debugger can be used, libthr and libpthread
do have. libthr can use ktrace to print thread ID, libthr can use top
to observe a thread blocked on what event,  I don't believe  libc_r is
best tracable.

David Xu