[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: d74b9a1 breaks ARM build (gcc 4.6)
|
From: |
Vladimir 'φ-coder/phcoder' Serbinenko |
|
Subject: |
Re: d74b9a1 breaks ARM build (gcc 4.6) |
|
Date: |
Mon, 02 Dec 2013 20:18:10 +0100 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131005 Icedove/17.0.9 |
On 02.12.2013 19:30, Leif Lindholm wrote:
> Commit d74b9a1, "Ensure that -mno-unaligned-access or some equivalent
> option is used.", breaks the configure step on my Debian Jessie, with
> a default 4.6.4 toolchain:
> "configure: error: couldnt instruct compiler not to use unaligned access"
>
> Where -mno-unalignes-access is not supported by gcc, it does not
> generate unaligned instructions. Was this inserted for llvm? If so, what
> was the fault this was fixing?
>
The reason to force to have some version of this argument is following
excerpt from gcc manual:
" By default unaligned access is disabled for all pre-ARMv6 and all
ARMv6-M architectures, and enabled for all other architectures."
Clearly not what we want.
Perhaps we should instead check that __ARM_FEATURE_UNALIGNED is not defined.
> /
> Leif
>
> _______________________________________________
> Grub-devel mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/grub-devel
>
signature.asc
Description: OpenPGP digital signature