From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Add unwinding support for memmove function
Date: Tue, 25 Nov 2014 11:45:41 +0000 [thread overview]
Message-ID: <20141125114541.GE3836@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1416836757-30547-1-git-send-email-linyongting@gmail.com>
On Mon, Nov 24, 2014 at 09:45:56PM +0800, Lin Yongting wrote:
> @@ -27,12 +28,17 @@
> */
>
> ENTRY(memmove)
> + UNWIND( .fnstart )
>
> subs ip, r0, r1
> cmphi r2, ip
> bls memcpy
>
> stmfd sp!, {r0, r4, lr}
> + UNWIND( .fnend )
> +
> + UNWIND( .fnstart )
> + UNWIND( .save {r0, r4, lr} ) @ in first stmfd block
This is pretty horrid, but I guess it's necessary due to how the unwinder
works. If no one has any objections, please drop it in the patch system
and I'll queue it for the next merge window.
Thanks.
--
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
prev parent reply other threads:[~2014-11-25 11:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-24 13:45 [PATCH] ARM: Add unwinding support for memmove function Lin Yongting
2014-11-25 11:45 ` Russell King - ARM Linux [this message]
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