ARM gcc 4.8.2 and kernel builds

ARM gcc 4.8.2 and kernel builds

[Craig McQueen]

I have been trying out kernel 3.18-rc4. I couldn't build it with the 
meta-freescale daisy SDK (which has gcc 4.8.2), because the kernel has 
blacklisted ARM gcc 4.8.0 through 4.8.2. The error message given says 
that it's because of a compiler bug which might lead to corrupted 
filesystems.

Could this gcc bug also affect earlier kernels (either 2.6.35 in 
linux-imx, or 3.14 in linux-fslc), so is it worth updating gcc to 4.8.3 
in meta-freescale daisy?

-- 
Craig McQueen

Re: ARM gcc 4.8.2 and kernel builds

[Otavio Salvador]

On Thu, Nov 13, 2014 at 1:31 AM, Craig McQueen
<craig.mcqueen@beamcommunications.com> wrote:
> I have been trying out kernel 3.18-rc4. I couldn't build it with the
> meta-freescale daisy SDK (which has gcc 4.8.2), because the kernel has
> blacklisted ARM gcc 4.8.0 through 4.8.2. The error message given says that
> it's because of a compiler bug which might lead to corrupted filesystems.
>
> Could this gcc bug also affect earlier kernels (either 2.6.35 in linux-imx,
> or 3.14 in linux-fslc), so is it worth updating gcc to 4.8.3 in
> meta-freescale daisy?

Daisy has the fix backported[1] so it is safe for you to remove the check.

1. http://git.openembedded.org/openembedded-core/commit/?h=daisy&id=3004eb3b7ee5fd8dfe9c4e5749b4e125d0bd4b59

In either case I strongly advise to move to Dizzy now as it seems your
project is at began.

-- 
Otavio Salvador                             O.S. Systems
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