From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: Ramana Radhakrishnan <ramana.gcc@googlemail.com>,
Phil Blundell <pb@pbcl.net>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH 4/4] arm: Enable ARM mode for armv6 strlen
Date: Thu, 12 Apr 2018 19:41:00 -0000 [thread overview]
Message-ID: <99d8482b-851a-fd1c-f829-f219e24d79a8@linaro.org> (raw)
In-Reply-To: <CAJA7tRahZ7L=zBs2z+zgCR=RTuccipdjBXhprjxybErebUwv1A@mail.gmail.com>
On 12/04/2018 16:32, Ramana Radhakrishnan wrote:
>
>
> On Thu, 12 Apr 2018, 20:28 Phil Blundell, <pb@pbcl.net <mailto:pb@pbcl.net>> wrote:
>
> On Thu, 2018-04-12 at 16:20 -0300, Adhemerval Zanella wrote:
> > In fact for strlen we still require to provide a ARM only mode, since
> > armv7 build will select this implementation as default and it still
> > possible the user would require a ARM only build. Â
>
> ARMv7 guarantees Thumb2 is available, doesn't it?
>
>
> Yep. I am puzzled as to why this patchset is.needed .
>
> Ramana
Because as reported by BZ#23031 [1], the user is using a kernel explicit
configured to no enable thumb instructions. Although this kernel config
is debatable whether is brings any gain to userland, it still a valid
one.
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=23031
next prev parent reply other threads:[~2018-04-12 19:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-11 21:16 [PATCH 1/4] arm: Fix armv7 neon memchr on ARM mode Adhemerval Zanella
2018-04-11 21:16 ` [PATCH 4/4] arm: Enable ARM mode for armv6 strlen Adhemerval Zanella
2018-04-11 22:12 ` Phil Blundell
2018-04-12 12:42 ` Adhemerval Zanella
2018-04-12 15:33 ` Phil Blundell
2018-04-12 16:16 ` Adhemerval Zanella
2018-04-12 19:20 ` Adhemerval Zanella
2018-04-12 19:28 ` Phil Blundell
[not found] ` <CAJA7tRahZ7L=zBs2z+zgCR=RTuccipdjBXhprjxybErebUwv1A@mail.gmail.com>
2018-04-12 19:41 ` Adhemerval Zanella [this message]
2018-04-12 20:31 ` Phil Blundell
2018-04-12 20:49 ` Adhemerval Zanella
2018-04-13 9:56 ` Phil Blundell
2018-04-13 11:56 ` Adhemerval Zanella
2018-04-13 12:06 ` Ramana Radhakrishnan
2018-04-13 12:44 ` Phil Blundell
2018-04-13 14:40 ` Adhemerval Zanella
2018-04-13 15:07 ` Phil Blundell
2018-04-13 16:42 ` Adhemerval Zanella
2018-04-13 19:09 ` Phil Blundell
2018-04-13 20:12 ` Adhemerval Zanella
2018-04-16 14:16 ` Richard Earnshaw (lists)
2018-04-11 21:16 ` [PATCH 2/4] arm: Fix armv7 neon strcmp on ARM mode Adhemerval Zanella
2018-04-11 21:16 ` [PATCH 3/4] arm: Enable ARM mode for armv6 memchr Adhemerval Zanella
2018-04-13 15:10 [PATCH 4/4] arm: Enable ARM mode for armv6 strlen Wilco Dijkstra
2018-04-13 15:43 ` Wilco Dijkstra
2018-04-13 15:48 ` Florian Weimer
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