Openembedded Core Discussions
 help / color / mirror / Atom feed
From: Peter Seebach <peter.seebach@windriver.com>
To: <openembedded-core@lists.openembedded.org>
Subject: [PATCH 0/1] Change default for cortexa* to armv7at-neon.
Date: Thu, 21 Aug 2014 14:54:54 -0500	[thread overview]
Message-ID: <cover.1408649791.git.peter.seebach@windriver.com> (raw)

The various cortex chips generally support thumb code, so the armv7at
tunings are a better default for them than the plain armv7a tunings.
The armv7at tuning allows generation of both arm and thumb code, while
armv7a only allows arm code, which is typically significantly bigger.
(It may be faster in some cases, but the tradeoffs aren't totally
obvious, because smaller code fits in caches better.) Since they
all had armv7a-neon as default, change them to armv7at-neon.

The following changes since commit 47d1fc9f5c38f3d092937c47bd4c2f45adaa7fe6:

  qemu: fix Darwin cross-compilation (2014-08-18 20:43:24 +0100)

are available in the git repository at:
  git://git.yoctoproject.org/poky-contrib seebs/armv7at
  http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=seebs/armv7at

Peter Seebach (1):
  tune-cortexa*.inc: use armv7at by default

 meta/conf/machine/include/tune-cortexa15.inc |    2 +-
 meta/conf/machine/include/tune-cortexa5.inc  |    2 +-
 meta/conf/machine/include/tune-cortexa7.inc  |    2 +-
 meta/conf/machine/include/tune-cortexa8.inc  |    2 +-
 meta/conf/machine/include/tune-cortexa9.inc  |    2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)



             reply	other threads:[~2014-08-21 19:49 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-21 19:54 Peter Seebach [this message]
2014-08-21 19:54 ` [PATCH 1/1] tune-cortexa*.inc: use armv7at by default Peter Seebach
2014-08-25  5:09   ` Khem Raj
2014-08-22 16:44 ` [PATCH 0/1] Change default for cortexa* to armv7at-neon Philip Balister
2014-08-22 18:33   ` Peter Seebach
2014-08-22 19:39     ` Martin Jansa
2014-08-22 20:49       ` Peter Seebach
2014-08-22 21:46         ` Martin Jansa
2014-08-22 22:06           ` Peter Seebach
2014-08-22 22:26             ` Martin Jansa
2014-08-25 19:12               ` Mark Hatle
2014-08-25 19:35                 ` Khem Raj
2014-08-25 19:40                   ` Mark Hatle
2014-08-25 20:40                   ` Martin Jansa
2014-08-28 12:51                 ` Philip Balister
2014-08-28 13:50                 ` Koen Kooi
2014-08-28 13:57                   ` Mark Hatle
2014-08-28 14:08                     ` Koen Kooi
2014-08-28 14:21                       ` Mark Hatle
2014-08-28 14:24                         ` Mark Hatle
2014-08-29  6:12                     ` Mike Looijmans
2014-08-29 12:16                       ` Koen Kooi
2014-08-29 12:57                       ` Mark Hatle
2014-08-24 23:51       ` Khem Raj
2014-08-24  7:56   ` Mike Looijmans
2014-08-24 14:44     ` Philip Balister
2014-08-24 18:15       ` Koen Kooi
2014-08-23 17:32 ` Koen Kooi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=cover.1408649791.git.peter.seebach@windriver.com \
    --to=peter.seebach@windriver.com \
    --cc=openembedded-core@lists.openembedded.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox