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From: David Woodhouse <dwmw2@infradead.org>
To: qemu-devel@nongnu.org
Cc: jakub@redhat.com
Subject: Re: [Qemu-devel] [PATCH] Fix TLS support on x86
Date: Thu, 21 Jun 2007 13:31:07 +0800	[thread overview]
Message-ID: <1182403868.2782.16.camel@shinybook.infradead.org> (raw)
In-Reply-To: <467958F6.2070804@suse.de>

On Wed, 2007-06-20 at 18:42 +0200, Alexander Graf wrote:
> implements futexes (this is mostly done by David Woodhouse as well,
> FUTEX_WAKE_OP done by me)

#ifdef BSWAP_NEEDED, only FUTEX_OP_CMP_EQ and FUTEX_OP_CMP_NE will work
as expected. If we want to do the rest then we'll need to implement
FUTEX_OP_CMP_LT_WRONGENDIAN &c in the kernel.

Or maybe, since we don't do set_robust_list (and would need wrong-endian
support in the kernel for that too), we can assume that it's all
in-process, and hence all _within_ qemu, and we could actually implement
the futex stuff entirely within qemu with qemu's own locking?

For now I think the safer option is just to leave FUTEX_WAKE_OP
unimplemented. Jakub, what do you think?

-- 
dwmw2

  reply	other threads:[~2007-06-21  5:30 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-08 14:17 [Qemu-devel] [PATCH] Fix TLS support on x86 Alexander Graf
2007-06-18 19:21 ` Thiemo Seufer
2007-06-20 16:42   ` Alexander Graf
2007-06-21  5:31     ` David Woodhouse [this message]
2007-06-21  6:01       ` Jakub Jelinek
2007-06-21  7:11       ` Alexander Graf
     [not found]     ` <20070621225550.GB25967@networkno.de>
     [not found]       ` <1801E7EE-FF0A-4A43-88ED-4503DEBBC831@suse.de>
     [not found]         ` <20070621231612.GC25967@networkno.de>
2007-07-02 10:01           ` Alexander Graf
2007-11-13 18:44             ` Stefan Weil
2007-11-13 18:46               ` Thayne Harbaugh
2007-11-13 22:13                 ` Fabrice Bellard
2007-11-14 20:02                   ` Stefan Weil

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