From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2 01/17] arch/arm: introduce and use BR2_ARM_CPU_ARMV7M
Date: Sat, 19 Mar 2016 15:08:15 +0100 [thread overview]
Message-ID: <20160319150815.27170f54@free-electrons.com> (raw)
In-Reply-To: <20160319135946.GA3426@free.fr>
Hello,
On Sat, 19 Mar 2016 14:59:46 +0100, Yann E. MORIN wrote:
> > Are you suggesting that a change is needed?
>
> No, it's OK (hence ny acked-by). However, I had to do a bit of research
> in the tree to see ehre such options were used, only to discover that
> packages did use them, not the toolchain.
>
> Those variables are specific to ARM, and we have no such counterparts in
> any of the others archs. So maybe we could have a little comment at the
> top of arch/Config/in.arm that explains what those kconfig variables are
> for?
IIRC, we originally added them because some packages were doing
$(BR2_cortex_a8)$(BR2_cortex_a9)$(BR2_cortex_aX)... to find out whether
we're on ARMv7 or not, and it was starting to be a bit annoying.
Or some others were doing similar things to say "I need ARMv5" at
least, etc.
But yes, they are only used by packages. For the toolchain build
process itself, only the BR2_cortex*, BR2_arm* options are useful.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-03-19 14:08 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-18 21:08 [Buildroot] [PATCH v2 00/17] ARM Cortex-M support and STM32 defconfigs Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 01/17] arch/arm: introduce and use BR2_ARM_CPU_ARMV7M Thomas Petazzoni
2016-03-18 22:30 ` Yann E. MORIN
2016-03-19 13:33 ` Thomas Petazzoni
2016-03-19 13:59 ` Yann E. MORIN
2016-03-19 14:08 ` Thomas Petazzoni [this message]
2016-03-18 21:08 ` [Buildroot] [PATCH v2 02/17] arch/arm: Cortex-M3 provides only Thumb-2 Thomas Petazzoni
2016-03-18 22:34 ` Yann E. MORIN
2016-03-19 15:33 ` Arnout Vandecappelle
2016-03-18 21:08 ` [Buildroot] [PATCH v2 03/17] arch/arm: add Cortex-M4 entry Thomas Petazzoni
2016-03-18 22:41 ` Yann E. MORIN
2016-03-18 21:08 ` [Buildroot] [PATCH v2 04/17] uclibc: add patches to simplify Thumb handling Thomas Petazzoni
2016-03-19 15:46 ` Arnout Vandecappelle
2016-03-29 22:14 ` Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 05/17] uclibc: remove USE_BX handling Thomas Petazzoni
2016-03-19 15:47 ` Arnout Vandecappelle
2016-03-18 21:08 ` [Buildroot] [PATCH v2 06/17] uclibc: gcc >= 4.9 can build a thumb/thread uclibc Thomas Petazzoni
2016-03-19 15:53 ` Arnout Vandecappelle
2016-03-29 22:18 ` Thomas Petazzoni
2016-03-29 22:49 ` Arnout Vandecappelle
2016-03-18 21:08 ` [Buildroot] [PATCH v2 07/17] uclibc: disable DOPIC on ARM FLAT Thomas Petazzoni
2016-03-19 16:11 ` Arnout Vandecappelle
2016-03-29 22:20 ` Thomas Petazzoni
2016-03-19 19:27 ` Ezequiel Garcia
2016-03-19 20:50 ` Thomas Petazzoni
2016-03-20 1:59 ` Ezequiel Garcia
2016-03-18 21:08 ` [Buildroot] [PATCH v2 08/17] uclibc: context functions are not Thumb-compatible Thomas Petazzoni
2016-03-19 16:20 ` Arnout Vandecappelle
2016-03-19 18:07 ` Thomas Petazzoni
2016-03-20 19:39 ` Arnout Vandecappelle
2016-03-18 21:08 ` [Buildroot] [PATCH v2 09/17] uclibc: NPTL thread implementation only available on MMU platforms Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 10/17] musl: build broken on Thumb, use ARM mode Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 11/17] toolchain-buildroot: update glibc comment for noMMU Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 12/17] toolchain-buildroot: don't show musl on noMMU platforms Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 13/17] package/Makefile.in: adjust LDFLAGS for elf2flt Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 14/17] elf2flt: use new upstream site and add ARM patch Thomas Petazzoni
2016-03-18 21:34 ` Ezequiel Garcia
2016-03-19 13:32 ` Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 15/17] afboot-stm32: use the Buildroot toolchain Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 16/17] configs/stm32f429_disco: new configuration for STM32F429 Discovery board Thomas Petazzoni
2016-03-21 9:48 ` Lee Jones
2016-03-21 10:39 ` Thomas Petazzoni
2016-03-18 21:08 ` [Buildroot] [PATCH v2 17/17] configs/stm32f469_disco: new configuration for STM32F469 " Thomas Petazzoni
2016-03-21 9:46 ` Lee Jones
2016-03-18 21:17 ` [Buildroot] [PATCH v2 00/17] ARM Cortex-M support and STM32 defconfigs Thomas Petazzoni
2016-03-18 22:49 ` Ezequiel Garcia
2016-03-19 13:32 ` Thomas Petazzoni
2016-03-19 16:12 ` Arnout Vandecappelle
2016-03-20 14:39 ` Thomas Petazzoni
2016-03-21 9:49 ` Lee Jones
2016-03-29 22:28 ` Thomas Petazzoni
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=20160319150815.27170f54@free-electrons.com \
--to=thomas.petazzoni@free-electrons.com \
--cc=buildroot@busybox.net \
/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