From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCHv3 02/14] arch: Refactor BR2_SOFT_FLOAT into per-architecture options
Date: Tue, 16 Jul 2013 14:12:31 +0200 [thread overview]
Message-ID: <20130716141231.57cada44@skate> (raw)
In-Reply-To: <874nbu3elx.fsf@dell.be.48ers.dk>
Dear Peter Korsgaard,
On Tue, 16 Jul 2013 13:53:46 +0200, Peter Korsgaard wrote:
> Thomas> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Thomas> ---
> Thomas> arch/Config.in | 3 +++
> Thomas> arch/Config.in.arm | 10 ++++++++++
> Thomas> arch/Config.in.mips | 10 ++++++++++
> Thomas> arch/Config.in.powerpc | 9 +++++++++
>
> What about arc/avr32/bfin/microblaze/sh/sparc/xtensa? Some of them
> apparently were broken in this regard already, and some of them are not
> supported by the internal toolchain, but with this change atleast
> Buildroot will always think they use hardfloat.
avr32 already selects BR2_SOFT_FLOAT in the current git master.
config BR2_avr32
bool "AVR32"
select BR2_SOFT_FLOAT
On the other platforms you mentioned, BR2_SOFT_FLOAT was always false:
config BR2_SOFT_FLOAT
bool "Use software floating point by default"
depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc
which explains why I didn't take care of any of them. I honestly have
no idea for those platforms which ones do soft-float, which ones do
hard-float. It already took me a while to get a minimal understanding
of how things work in the ARM world in terms of floating point
support :)
From the perspective of those architectures, the BR2_SOFT_FLOAT value
was always false, and continues to be false after my patches. If this
is not correct, it should certainly be fixed, but I don't think this is
something that gets broken by my patches: it would have already been
wrong, and the Buildroot code already believes those architectures are
all hard float.
Best regards,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-07-16 12:12 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 8:03 [Buildroot] [PATCHv3 00/14] ARM floating point improvements, EABIhf and Thumb2 support Thomas Petazzoni
2013-07-16 8:03 ` [Buildroot] [PATCHv3 01/14] arch: introduce BR2_GCC_TARGET_{FPU, FLOAT_ABI} Thomas Petazzoni
2013-07-16 11:48 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 02/14] arch: Refactor BR2_SOFT_FLOAT into per-architecture options Thomas Petazzoni
2013-07-16 11:53 ` Peter Korsgaard
2013-07-16 12:12 ` Thomas Petazzoni [this message]
2013-07-16 12:34 ` Peter Korsgaard
2013-07-16 13:12 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 03/14] arch: improve ARM floating point support and add support for EABIhf Thomas Petazzoni
2013-07-16 13:12 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 04/14] binutils: exclude binutils versions that don't support EABIhf Thomas Petazzoni
2013-07-16 13:12 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 05/14] gcc: take into account ARM floating point capabilities Thomas Petazzoni
2013-07-16 13:13 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 06/14] toolchain: remove the old BR2_VFP_FLOAT option Thomas Petazzoni
2013-07-16 13:15 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 07/14] configs: update defconfigs after VFP option changes Thomas Petazzoni
2013-07-16 13:16 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 08/14] configs: use new EABIhf option for beaglebone_defconfig Thomas Petazzoni
2013-07-16 13:19 ` Peter Korsgaard
2013-07-16 13:32 ` Thomas Petazzoni
2013-07-16 13:39 ` Peter Korsgaard
2013-07-16 13:47 ` Thomas Petazzoni
2013-07-16 15:06 ` Spenser Gilliland
2013-07-16 15:23 ` Thomas Petazzoni
2013-07-16 15:31 ` Peter Korsgaard
2013-07-16 13:39 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 09/14] toolchain-external: update config options after EABIhf introduction Thomas Petazzoni
2013-07-16 13:21 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 10/14] gcc: create symbolic link to ld-linux in EABIhf/gcc 4.7/eglibc Thomas Petazzoni
2013-07-16 13:23 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 11/14] arch/arm: add support for Thumb2 Thomas Petazzoni
2013-07-16 13:29 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 12/14] uclibc: use numbered patches for 0.9.33.2 Thomas Petazzoni
2013-07-16 13:31 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 13/14] uclibc: add Thumb2 fixes Thomas Petazzoni
2013-07-16 13:32 ` Peter Korsgaard
2013-07-16 8:03 ` [Buildroot] [PATCHv3 14/14] arch: use tabs instead of spaces in Config.in files Thomas Petazzoni
2013-07-16 13:32 ` Peter Korsgaard
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