From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: A bug about system call on ARM
Date: Mon, 3 Jun 2013 10:54:25 +0100 [thread overview]
Message-ID: <20130603095425.GA32242@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <35FD53F367049845BC99AC72306C23D1610991B87B@CNBJMBX05.corpusers.net>
On Mon, Jun 03, 2013 at 06:25:26AM +0100, Wang, Yalin wrote:
> Hi Will,
>
> I have a question about this patch .
>
> If the user space is thumb mode,
> The PC should be rewind by 2 bytes,
> So the fix_up code should be
>
> Sub lr, lr, #2 .
>
>
> Am I right ?
No, because we don't have OABI-compat support for Thumb applications and
force everything down the EABI path instead.
Did you manage to test the patch?
Will
next prev parent reply other threads:[~2013-06-03 9:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <35FD53F367049845BC99AC72306C23D1610991B85B@CNBJMBX05.corpusers.net>
[not found] ` <CAFLxGvy39xWdZmtiVHP+y=zH1coCVmMuREcmD25wSb=w-VK7Xg@mail.gmail.com>
[not found] ` <35FD53F367049845BC99AC72306C23D1610991B85D@CNBJMBX05.corpusers.net>
[not found] ` <35FD53F367049845BC99AC72306C23D1610991B85E@CNBJMBX05.corpusers.net>
2013-05-29 8:46 ` A bug about system call on ARM richard -rw- weinberger
2013-05-29 9:48 ` Will Deacon
[not found] ` <35FD53F367049845BC99AC72306C23D1610991B865@CNBJMBX05.corpusers.net>
2013-05-30 1:41 ` Wang, Yalin
2013-05-30 9:09 ` Will Deacon
2013-05-30 11:41 ` Will Deacon
2013-05-31 2:56 ` Wang, Yalin
2013-05-31 8:46 ` Will Deacon
2013-05-31 11:02 ` Wang, Yalin
2013-05-31 11:13 ` Will Deacon
2013-05-31 11:30 ` Wang, Yalin
2013-06-03 5:25 ` Wang, Yalin
2013-06-03 9:54 ` Will Deacon [this message]
2013-06-03 9:58 ` Wang, Yalin
2013-06-04 5:33 ` Wang, Yalin
2013-06-04 8:48 ` Will Deacon
2013-06-04 9:30 ` Wang, Yalin
2013-06-04 11:27 ` Will Deacon
2013-06-14 6:53 ` Wang, Yalin
2013-05-31 16:48 ` Nicolas Pitre
2013-05-31 16:52 ` Will Deacon
2013-05-31 3:54 ` Nicolas Pitre
2013-05-31 8:45 ` Will Deacon
2013-06-03 10:18 ` Russell King - ARM Linux
2013-06-03 10:27 ` Will Deacon
2013-06-03 10:45 ` Russell King - ARM Linux
2013-06-03 12:39 ` Will Deacon
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