From: Alexander Holler <holler@ahsoftware.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: lib: memcpy: Do not copy to same address
Date: Mon, 23 May 2011 11:51:30 +0200 [thread overview]
Message-ID: <4DDA2E22.6010607@ahsoftware.de> (raw)
In-Reply-To: <4DDA2CFC.3070509@arcor.de>
Am 23.05.2011 11:46, schrieb Matthias Wei?er:
>> The standard clearly say to both memory regions should not overlap when
>> memcpy() is used, so I would say this is the wrong place to fix that.
>
> Well, real world applications do this. And these two instructions
> shouldn't hurt a lot.
Real bugs to this. Just see e.g the long discussion about some changes
fo memcpy done in the glibc lately and what that did for flash-users
because flash seemed to the same stupid stuff.
Regards,
Alexander
next prev parent reply other threads:[~2011-05-23 9:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-23 9:06 [U-Boot] [PATCH] arm: lib: memcpy: Do not copy to same address Matthias Weisser
2011-05-23 9:30 ` Alexander Holler
2011-05-23 9:46 ` Matthias Weißer
2011-05-23 9:51 ` Alexander Holler [this message]
2011-05-23 9:49 ` Albert ARIBAUD
2011-05-23 10:01 ` Alexander Holler
2011-07-26 6:02 ` Matthias Weißer
2011-08-12 8:49 ` Albert ARIBAUD
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