From: Roger Gammans <roger@computer-surgery.co.uk>
To: Ulrich Drepper <drepper@redhat.com>
Cc: "Hu, Boris" <boris.hu@intel.com>,
"Linux Kernel ML (E-mail)" <linux-kernel@vger.kernel.org>,
"NPTL list (E-mail)" <phil-list@redhat.com>
Subject: Re: problem about CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID ?
Date: Wed, 11 Dec 2002 16:22:55 +0000 [thread overview]
Message-ID: <20021211162255.B12861@computer-surgery.co.uk> (raw)
In-Reply-To: <3DF63A0C.6010708@redhat.com>; from drepper@redhat.com on Tue, Dec 10, 2002 at 11:01:32AM -0800
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On Tue, Dec 10, 2002 at 11:01:32AM -0800, Ulrich Drepper wrote:
> Hu, Boris wrote:
>
> > I have searched CLONE_PARENT_SETTID in kernel, it seems only to appear in
> > some non-architecture files, such as /include/linux/sched.h and several arch
> [snip]
> the kernel. Nobody cared for Arm so far so there obviously is no kernel
> support.
Unless Russell has changed his mind recently,[1] use of SWP in userspace code
isn't supported.
I suppose this is less of a concern if futex's work on ARM though.
But you'll need some userspace synchronisation primitive to do useful work
with threads.
TTFN
[1] And I haven't been following linux-arm recently.
--
Roger.
Master of Peng Shui. (Ancient oriental art of Penguin Arranging)
GPG Key FPR: CFF1 F383 F854 4E6A 918D 5CFF A90D E73B 88DE 0B3E
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prev parent reply other threads:[~2002-12-11 16:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-10 18:49 problem about CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID ? Hu, Boris
2002-12-10 19:01 ` Ulrich Drepper
2002-12-11 16:22 ` Roger Gammans [this message]
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