From: Richard Weinberger <richard@nod.at>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: user-mode-linux-devel
<user-mode-linux-devel@lists.sourceforge.net>,
Thomas Meyer <thomas@m3y3r.de>
Subject: Re: [uml-devel] current_thread_info() returns invalid pointer in early UML boot code
Date: Mon, 13 Jun 2016 00:55:13 +0200 [thread overview]
Message-ID: <575DE851.4080206@nod.at> (raw)
In-Reply-To: <CAOMGZ=FLi_6H0k9-KStHsYpM9PpQJKXAZpCqwts5d7aX1SNbDQ@mail.gmail.com>
Am 12.06.2016 um 23:41 schrieb Vegard Nossum:
> I see... nice and hacky ;-) I'll try the same for snprintf and see if
> that works around my bug.
>
>> A much better approach would be having a real linker scope.
>> Some time ago I posted some thoughts on that:
>> https://lkml.org/lkml/2015/11/19/758
>>
>> Due to -ENOTIME this never materialized, though. ;-(
>
> Cool, objcopy -G/--keep-global-symbol(s) seems like a good solution.
> Doesn't look like it should be too difficult. I might give it a try.
Not really difficult but unpleasant. ;-)
IIRC last time I looked I figured that UML's source structure
and build process would need a big rework to achieve that.
Would be cool if you could work on it, I'll happily assist as far as my
spare time permits.
Thanks,
//richard
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next prev parent reply other threads:[~2016-06-12 22:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-21 13:51 [uml-devel] current_thread_info() returns invalid pointer in early UML boot code Vegard Nossum
2016-05-21 18:18 ` Thomas Meyer
2016-05-22 15:39 ` Vegard Nossum
2016-05-23 18:42 ` Thomas Meyer
2016-06-12 20:11 ` Richard Weinberger
2016-06-12 20:59 ` Vegard Nossum
2016-06-12 21:05 ` Richard Weinberger
2016-06-12 21:41 ` Vegard Nossum
2016-06-12 22:55 ` Richard Weinberger [this message]
2016-05-21 21:49 ` Richard Weinberger
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