From: Arnout Vandecappelle <arnout@mind.be>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2 04/30] gst-ffmpeg: use the new BR2_ARM_CPU_ARM* options
Date: Wed, 22 Oct 2014 18:14:21 +0200 [thread overview]
Message-ID: <5447D7DD.5090200@mind.be> (raw)
In-Reply-To: <20141022093400.2bc39e83@free-electrons.com>
On 22/10/14 09:34, Thomas Petazzoni wrote:
> Dear Yann E. MORIN,
>
> On Tue, 21 Oct 2014 23:18:11 +0200, Yann E. MORIN wrote:
>
>>> -ifeq ($(BR2_arm1136jf_s)$(BR2_arm1176jz_s)$(BR2_arm1176jzf_s),y)
>>> +ifeq ($(BR2_ARM_CPU_ARMV6),y)
>>> GST_FFMPEG_CONF_EXTRA_OPTS += --enable-armv6
>>> else
>>> GST_FFMPEG_CONF_EXTRA_OPTS += --disable-armv6 --disable-armv6t2
>>
>> armv6t2: does that hint that we can tune to use Thumb-2 ?
>
> I thought Thumb-2 was only introduced with ARMv7, but it turns out it's
> not the case. It has in fact been introduced in ARM1156, part of the
> ARMv6 architecture.
>
> However, this ARM1156 is not supported in Buildroot, and I have never
> heard of it in any publicly available SoC.
>
> However, this means that --enable-armv6t2 can be used for ARMv7.
I wouldn't want to actually use it unless tested on real hardware, however.
Regards,
Arnout
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
next prev parent reply other threads:[~2014-10-22 16:14 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-21 20:26 [Buildroot] [PATCH v2 00/30] Removal of BR2_GCC_TARGET_TUNE and other arch/ updates Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 01/30] arch/arm: add blind options to know the ARM architecture Thomas Petazzoni
2014-10-21 21:06 ` Yann E. MORIN
2014-10-21 20:26 ` [Buildroot] [PATCH v2 02/30] ffmpeg: use the new BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-10-21 21:09 ` Yann E. MORIN
2014-10-21 20:26 ` [Buildroot] [PATCH v2 03/30] ffmpeg: fix ARM condition for --{enable, disable}-vfp Thomas Petazzoni
2014-10-21 21:15 ` Yann E. MORIN
2014-10-21 20:26 ` [Buildroot] [PATCH v2 04/30] gst-ffmpeg: use the new BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-10-21 21:18 ` Yann E. MORIN
2014-10-22 7:34 ` Thomas Petazzoni
2014-10-22 16:14 ` Arnout Vandecappelle [this message]
2014-10-23 7:49 ` Thomas Petazzoni
2014-10-23 8:27 ` Arnout Vandecappelle
2014-10-21 20:26 ` [Buildroot] [PATCH v2 05/30] gst-ffmpeg: allow usage of ARMv6 optimizations on ARMv7 platforms Thomas Petazzoni
2014-10-21 21:24 ` Yann E. MORIN
2014-10-21 20:26 ` [Buildroot] [PATCH v2 06/30] gst1-libav: use the new BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 07/30] gst1-libav: allow usage of ARMv6 optimizations on ARMv7 platforms Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 08/30] mplayer: use BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-11-06 22:33 ` Peter Korsgaard
2014-10-21 20:26 ` [Buildroot] [PATCH v2 09/30] libplayer: use BR2_ARM_CPU_ARM* option Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 10/30] nettle: use the BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 11/30] nodejs: use " Thomas Petazzoni
2014-10-21 20:26 ` [Buildroot] [PATCH v2 12/30] qt5: use the " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 13/30] speex: use " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 14/30] vo-aacenc: use the " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 15/30] webkit: use " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 16/30] valgrind: use the " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 17/30] x264: use the BR2_ARM_CPU_ARMV7A option Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 18/30] libnspr: " Thomas Petazzoni
2014-11-06 22:57 ` Peter Korsgaard
2014-10-21 20:27 ` [Buildroot] [PATCH v2 19/30] toolchain-external: use BR2_ARM_CPU_ARM* options Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 20/30] dhcpcd: do not pass --target option Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 21/30] arch/arm: do not distinguish revisions of ARM1136JF-S Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 22/30] arch/arm: remove BR2_GCC_TARGET_ARCH definitions on ARM Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 23/30] ffmpeg: use arch and cpu instead of tune Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 24/30] arch/x86: get rid of BR2_GCC_TARGET_TUNE Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 25/30] arch/sparc: " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 26/30] arch/powerpc: " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 27/30] arch/m68k: " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 28/30] gcc: do not use BR2_GCC_TARGET_TUNE anymore Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 29/30] toolchain-external: " Thomas Petazzoni
2014-10-21 20:27 ` [Buildroot] [PATCH v2 30/30] arch: remove the BR2_GCC_TARGET_TUNE option Thomas Petazzoni
2014-10-25 10:46 ` [Buildroot] [PATCH v2 00/30] Removal of BR2_GCC_TARGET_TUNE and other arch/ updates Thomas Petazzoni
2014-11-06 7:24 ` Thomas Petazzoni
2014-11-06 22:06 ` Peter Korsgaard
2014-11-06 23:20 ` Peter Korsgaard
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