From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCHv3 08/14] configs: use new EABIhf option for beaglebone_defconfig
Date: Tue, 16 Jul 2013 17:23:02 +0200 [thread overview]
Message-ID: <20130716172302.61af23e1@skate> (raw)
In-Reply-To: <CAEBucnDrCWq5-B2N9=CEY3OSuu+w+x3ve-uh801Q8om73wF6zQ@mail.gmail.com>
Dear Spenser Gilliland,
On Tue, 16 Jul 2013 10:06:22 -0500, Spenser Gilliland wrote:
> In summary, uboot will keep -msoft-float and will not accept the patch
> for reasons of preventing possible floating point assembly being
> generated.
>
> IMHO: the simple solution could be to just do a CFLAGS=$(filter
> -mfloat-abi=hard, $(TARGET_CFLAGS)) when passing to uboot as uboot
> should not generate any float code at all.
That's not possible because -mfloat-abi=hard is not passed through
CFLAGS, but directly hardcoded into the external toolchain wrapper. The
reasoning for hardcoding that into the external toolchain wrapper is
that people using $(O)/host/usr/bin/<arch>-gcc to build their own stuff
outside of Buildroot will automagically get the proper flags, without
having to worry about this.
So we can't just "filter" flags in uboot.mk as you suggest,
unfortunately.
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 15:23 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
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 [this message]
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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