From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Henning Schild <henning.schild@siemens.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] ipipe_read_tsc, ipipe_tsc2ns
Date: Tue, 29 Sep 2015 15:40:12 +0200 [thread overview]
Message-ID: <20150929134012.GD13638@hermes.click-hack.org> (raw)
In-Reply-To: <20150929153640.6acc16b5@md1em3qc>
On Tue, Sep 29, 2015 at 03:36:40PM +0200, Henning Schild wrote:
> On Tue, 29 Sep 2015 14:38:58 +0200
> Johann Obermayr <johann.obermayr@sigmatek.at> wrote:
>
> > in a loadable kernel module i use ipipe_read_tsc and ipipe_tsc2ns.
> > But at compiling i get follow warning.
> >
> > WARNING: "__ipipe_kuser_tsc_freq" [km_testsample.ko] undefined!
> >
> > we have ARM, Linux 3.0 + xenomai 2.6.2.1
>
> You should be able to resolve that linking problem by exporting the
> missing symbol.
> Add a "EXPORT_SYMBOL_GPL(__ipipe_kuser_tsc_freq);" after its definition.
The functions ipipe_tsc2us/tsc2ns are really internal functions for
the I-pipe tracer, I am not sure we want to expose this interface.
--
Gilles.
https://click-hack.org
prev parent reply other threads:[~2015-09-29 13:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-29 12:38 [Xenomai] ipipe_read_tsc, ipipe_tsc2ns Johann Obermayr
2015-09-29 13:33 ` Gilles Chanteperdrix
2015-09-29 13:36 ` Henning Schild
2015-09-29 13:40 ` Gilles Chanteperdrix [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150929134012.GD13638@hermes.click-hack.org \
--to=gilles.chanteperdrix@xenomai.org \
--cc=henning.schild@siemens.com \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.