[U-Boot] [PATCH] arm: Switch to -mno-unaligned-access when supported by the compiler

[Tom Rini]

On Tue, Jan 28, 2014 at 06:43:14PM +0000, Måns Rullgård wrote:
> Tom Rini <trini at ti.com> writes:
> 
> > When we tell the compiler to optimize for ARMv7 it assumes a default of
> > unaligned accesses being supported at the hardware level and can make
> > use of this to perform what it deems as an optimization in any case,
> > including allowing for data to become unaligned.  We explicitly disallow
> > this hardware feature so we must tell the compiler.
> >
> > Cc: Albert ARIBAUD <albert.u.boot at aribaud.net>
> > Cc: Mans Rullgard <mans at mansr.com>
> > Signed-off-by: Tom Rini <trini at ti.com>
> > ---
> >  arch/arm/cpu/armv7/config.mk      |    6 +-
> >  arch/arm/cpu/armv8/config.mk      |    5 +-
> >  common/Makefile                   |    4 --
> >  doc/README.arm-unaligned-accesses |  122 -------------------------------------
> >  fs/ubifs/Makefile                 |    3 -
> >  lib/Makefile                      |    3 -
> >  6 files changed, 5 insertions(+), 138 deletions(-)
> >  delete mode 100644 doc/README.arm-unaligned-accesses
> 
> Awesome.
> 
> You should also remove the reference to the (deleted) readme file from
> arch/arm/lib/interrupts.c

And top-level README.  I'll do that in a v2 later, thanks.

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20140128/8d0badd6/attachment.pgp>