svn commit: r249734 - stable/9/sys/kern

Jeremie Le Hen jlh at FreeBSD.org
Wed Apr 24 22:07:59 UTC 2013


Hi Mikolaj,

On Sun, Apr 21, 2013 at 05:14:50PM +0000, Mikolaj Golub wrote:
> Author: trociny
> Date: Sun Apr 21 17:14:50 2013
> New Revision: 249734
> URL: http://svnweb.freebsd.org/changeset/base/249734
> 
> Log:
>   MFC r249238, r249239:
>   
>   r249238:
>   
>   Use 4-byte padding for core dump notes on both 32 and 64bit archs.
>   
>   Although native word padding (i.e. 8-byte on 64bit arch) looks to be
>   in agreement with standards, other parts of our code and other OSes
>   use 4-byte alignment.
>   
>   This is not expected to change alignment for currently generated core
>   dump notes, as the notes look to consist of structures with sizes
>   multiple of 8 on 64-bit archs. But there are plans to add additional
>   notes, where 4-byte vs 8-byte alignment makes difference.
>   

Sorry, I'm a little late, trying to catch up on emails.

I'd say this deserves a comment.  Even if you commit log clearly states
the reason for this change, a casual reader may think it would be
preferable to have native alignment and fix it without thinking of
checking the SVN metadata.

-- 
Jeremie Le Hen

Scientists say the world is made up of Protons, Neutrons and Electrons.
They forgot to mention Morons.


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