From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 32C1CE008DC; Wed, 7 Jan 2015 05:46:23 -0800 (PST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on yocto-www.yoctoproject.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,HTML_MESSAGE autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 0.0 HTML_MESSAGE BODY: HTML included in message Received: from elnico.cz (mail.elnico.cz [90.183.239.238]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id B1AF7E00873 for ; Wed, 7 Jan 2015 05:46:15 -0800 (PST) Received: from pcw.firma.local ([192.168.10.64]) by elnico.cz with Microsoft SMTPSVC(6.0.3790.4675); Wed, 7 Jan 2015 14:46:11 +0100 Message-ID: <54AD38A3.6010807@elnico.cz> Date: Wed, 07 Jan 2015 14:46:11 +0100 From: =?UTF-8?B?UGV0ciBLdWJpesWIw6Fr?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Otavio Salvador References: <54AAE22A.7070905@elnico.cz> In-Reply-To: X-OriginalArrivalTime: 07 Jan 2015 13:46:11.0421 (UTC) FILETIME=[4C1290D0:01D02A80] X-EsetResult: clean, is OK X-EsetId: 764970384DE7FE392C0820 Cc: "meta-freescale@yoctoproject.org" , Max Krummenacher Subject: Re: [meta-fsl-arm] libmcc sysroot issues X-BeenThere: meta-freescale@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Usage and development list for the meta-fsl-* layers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Jan 2015 13:46:23 -0000 Content-Type: multipart/alternative; boundary="------------050507030903080209030401" --------------050507030903080209030401 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hello Otavio, Thank you for your patches. I rebuilt yocto and my application afterwards, and would like to confirm successful build. Best Regards, Petr Petr Kubiznak Embedded SW Developer ELNICO s.r.o. Heydukova 2923, 544 01 Dvur Kralove n.L., Czech Republic T: +420 499 321 019 | M: +420 724 053 668 www.elnico.cz | www.sqm4.com | kubiznak.petr@elnico.cz On 01/06/2015 05:32 PM, Otavio Salvador wrote: > Hello, > > (added people which may be interested on Cc) > > I have prepared a set of patches which I think improves this. > > On Mon, Jan 5, 2015 at 5:12 PM, Petr Kubizňák wrote: >> I'm experiencing sysroot issues with the libmcc library on the latest >> revision of branch dizzy (2014-12-30, commit >> 7539a694f3d01f1ab5162bfee16b0327f827c4f7). Not all required files are >> populated into the SDK, so the library cannot be further used in the >> application development without manually manipulating the sysroot. >> >> First of all, compilation of such application fails on the dependency on >> include file, coming from . The >> mvf_sema4.h file is a part of linux-timesys (3.0.15) kernel (directory >> include/linux), and should be located in /usr/include/linux in the SDK >> sysroot. I wanted to create a patch, but did not find an automated solution >> (as I already described at https://community.freescale.com/message/466383). >> This issue is not just my case, as you can find for example at the following >> link: >> http://developer.toradex.com/how-to/colibri-vf61-real-time-demo-%28xy-pen-plotter%29#Building_the_Qt_User_Interface > Fixed. See below. > >> Second (after fixing the first issue manually), linking of such application >> fails on "-lmcc" flag, as it cannot locate libmcc.so library. In sysroot's >> /usr/lib, there is only libmcc.so.1.0, but a libmcc.so link is missing. >> After creating the link manually, the application can build and run as >> expected. > Fixed. See below. > >> I would like to ask for a patch of these two issues, or at least for >> pointing me to some *brief* resource where I might learn how to create the >> patch on myself (i.e. what meta-data say yocto how to generate sysroots). >> Sorry, but studying the whole yocto documentation is just too long run. I >> spent whole day trying to find a solution with no success. > I prepared patches for kernel-module-mcc to build fine on master and > also the libmcc symlink issue. > > The headers I fixed adding the module headers in the libmcc-dev > rdepends so it is included along the library. > > For testing purposes, please check the dizzy-next or master-next > branch and add to your local.conf: > > ---- > TOOLCHAIN_TARGET_TASK_append = ' \ > libmcc-dev \ > ' > ---- > > After that, do: > > bitbake core-image-base -c populate_sdk > > and this should work fine. > > Specially the mcc_config.h change would be good to have Timesys > engineers to comment and ack it. As it may have impact to other users. > --------------050507030903080209030401 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Hello Otavio,

Thank you for your patches. I rebuilt yocto and my application afterwards, and would like to confirm successful build.

Best Regards,
Petr

Petr Kubiznak
Embedded SW Developer
ELNICO s.r.o.
Heydukova 2923, 544 01 Dvur Kralove n.L., Czech Republic
T: +420 499 321 019 | M: +420 724 053 668
www.elnico.cz | www.sqm4.com | kubiznak.petr@elnico.cz


On 01/06/2015 05:32 PM, Otavio Salvador wrote:
Hello,

(added people which may be interested on Cc)

I have prepared a set of patches which I think improves this.

On Mon, Jan 5, 2015 at 5:12 PM, Petr Kubizňák <kubiznak.petr@elnico.cz> wrote:

I'm experiencing sysroot issues with the libmcc library on the latest
revision of branch dizzy (2014-12-30, commit
7539a694f3d01f1ab5162bfee16b0327f827c4f7). Not all required files are
populated into the SDK, so the library cannot be further used in the
application development without manually manipulating the sysroot.

First of all, compilation of such application fails on the dependency on
<linux/mvf_sema4.h> include file, coming from <linux/mcc_config.h>. The
mvf_sema4.h file is a part of linux-timesys (3.0.15) kernel (directory
include/linux), and should be located in /usr/include/linux in the SDK
sysroot. I wanted to create a patch, but did not find an automated solution
(as I already described at https://community.freescale.com/message/466383).
This issue is not just my case, as you can find for example at the following
link:
http://developer.toradex.com/how-to/colibri-vf61-real-time-demo-%28xy-pen-plotter%29#Building_the_Qt_User_Interface

Fixed. See below.


Second (after fixing the first issue manually), linking of such application
fails on "-lmcc" flag, as it cannot locate libmcc.so library. In sysroot's
/usr/lib, there is only libmcc.so.1.0, but a libmcc.so link is missing.
After creating the link manually, the application can build and run as
expected.

Fixed. See below.


I would like to ask for a patch of these two issues, or at least for
pointing me to some *brief* resource where I might learn how to create the
patch on myself (i.e. what meta-data say yocto how to generate sysroots).
Sorry, but studying the whole yocto documentation is just too long run. I
spent whole day trying to find a solution with no success.

I prepared patches for kernel-module-mcc to build fine on master and
also the libmcc symlink issue.

The headers I fixed adding the module headers in the libmcc-dev
rdepends so it is included along the library.

For testing purposes, please check the dizzy-next or master-next
branch and add to your local.conf:

----
TOOLCHAIN_TARGET_TASK_append = ' \
    libmcc-dev \
'
----

After that, do:

bitbake core-image-base -c populate_sdk

and this should work fine.

Specially the mcc_config.h change would be good to have Timesys
engineers to comment and ack it. As it may have impact to other users.

--------------050507030903080209030401--