Re: How to confirm LOCALVERSION_AUTO config effect

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On 05.09.2014 16:21, Makoto Harada wrote:
> Dear expert
> 
> Would someone please teach me how to confirm LOCALVERSION_AUTO config
> effect ?
> I built my kernel with LOCALVERSION_AUTO enabled, and boot my PC with
> the kernel.
> My expectation is that uname will return the kernel version with git
> hush version added,
> however I can not see it as shown below.
> 
> [makoto@vostro ~]$ zcat /proc/config.gz |grep LOCALVERSION_AUTO
> CONFIG_LOCALVERSION_AUTO=y
> [makoto@vostro ~]$ uname -a
> Linux vostro 3.2.0-makoto-0-dirty #5 SMP Fri Sep 5 22:32:22 JST 2014
> x86_64 GNU/Linux
> 
> [makoto@vostro linux_mainline][v3.2]$ git rev-parse --verify HEAD
> 805a6af8dba5dfdd35ec35dc52ec0122400b2610
> 
> Any insight would be highly appreciated.
> 
> Kind Regards,
> Makoto Harada
> 


Hi Makoto,

805a6a is tagged as v3.2, and LOCALVERSION_AUTO matches git tags first
as described in init/Kconfig:

> This will try to automatically determine if the current tree is a
> release tree by looking for git tags that belong to the current
> top of tree revision.

You might have left your changes to the kernel uncommited inside your
git repository. These uncommited changes produce the -dirty string in
your kernel name.

The script at scripts/setlocalversion generates the version when you
have set LOCALVERSION_AUTO=y, so you might also take a look there.

- Julius


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