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From: "wdijkstr at arm dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug libc/25824] Abnormal function of strnlen in aarch64
Date: Mon, 11 May 2020 15:33:04 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25824

--- Comment #6 from Wilco <wdijkstr at arm dot com> ---
(In reply to Wilco from comment #5)
> (In reply to Yan Zhu from comment #0)
> > In aarch64, the strnlen interface has a problem when the string length =
is
> > more than 9
>=20
> In big-endian? Yes that rev64 only swaps bytes in each 64-bit word, so you
> still need to swap the index in mov data1, datav2.d[0].
>=20
> This sequence comes from strlen_asimd.S originally. And now strcpy.S has =
it
> too.

Btw I have a faster strnlen I'll post soon that will fix one of the 3 cases.

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