[yocto] A question on adding a new program to a new meta layer

Thu Mar 7 17:47:59 PST 2013

On 13-03-07 5:02 PM, Insop Song wrote:
> One observation and question:
>
> 1. I can build core-image-minimal/sato with meta-dl (with github 3.8
> or yocto-3.8 kernel) with yocto on "danny-8.0" tag
> 2. I cannot build a successfully bootable core-image-minimal (with
> meta-dl) with yocto on "1.4_M4" tag,
> the image was stuck during booting..
>
> My build machine is Ubuntu 12.04 LTS.
>
> Before I debug more, I want to check with you to see if there is any
> thing that you can think of.
> Since I am planning to move to the yocto's master, so that I can pick
> up "linux-yocto_3.8.bb".

Nothing comes to mind. It all depends on what target you are using, and
if you are using the 'defconfig' that you mentioned earlier. Switching
to the linux-yocto policy and BSP fragments will likely fix your problem.

Bruce

>
> Thank you,
>
> Insop
>
>
> On Thu, Mar 7, 2013 at 6:05 AM, Bruce Ashfield
> <bruce.ashfield at windriver.com>  wrote:
>> On 13-03-07 03:26 AM, Insop Song wrote:
>>>
>>> Hi Bruce,
>>>
>>> One more question on 3.8 kernel.
>>> Is "meta/recipes-kernel/linux/linux-yocto_3.8.bb" added soon as well in
>>> 1.4?
>>
>>
>> It's in master as of a few days ago. So it's available and
>> ready for use.
>>
>> Cheers,
>>
>> Bruce
>>
>>
>>>
>>> I am using 1.4_M4.final now.
>>>
>>> Thank you.
>>>
>>> Insop
>>>
>>> On Wed, Mar 6, 2013 at 9:05 PM, Insop Song<insop.song at gmail.com>  wrote:
>>>>
>>>> Bruce,
>>>>
>>>> That's very good. I will bring linux-yocto-3.8 kernel to meta-dl.
>>>> (https://github.com/insop/meta-dl/tree/linux-yocto-3.8)
>>>>
>>>> The purposes of meta-dl are the following three:
>>>> 1. easy to use sched_deadline by providing recipes-kernel that includes
>>>> - git url including github and from yocto-kernel
>>>>
>>>> 2. easy to test and validate sched_deadline with automated
>>>> reproducible test suits
>>>> - currently, rt-app and schedtool are included in meta-dl
>>>> - will add test scripts
>>>>
>>>> 3. provide and test on different targets/bsps
>>>> - will prepare and test on different targets (bsp)
>>>>
>>>> #1 is done as I've tested with kernel from github from Juri and
>>>> yocto-kernel-3.8 that you've merged.
>>>> #2 and #3 are in-progress.
>>>>
>>>> I've talked Juri the other day and gather information on testing
>>>> methods and scripts so I will include this to meta-dl.
>>>>
>>>> I agree that it's good to coordinate the effort, so please feel free
>>>> to let me know if you have any suggestion.
>>>>
>>>> Regards,
>>>>
>>>> Insop
>>>>
>>>> * updated kernel recipes
>>>> @ -9,12 +9,15 @@ inherit kernel
>>>>
>>>>    #SRCREV ="031d31cfaa1e0c00122bf52639e340353d3b8360"
>>>>    SRCREV ="${AUTOREV}"
>>>> -KBRANCH = "sched-dl-V7"
>>>> -SRC_URI =
>>>> "git://github.com/insop/sched-deadline;protocol=git;branch=${KBRANCH}
>>>> \
>>>> +#KBRANCH = "sched-dl-V7"
>>>> +#SRC_URI =
>>>> "git://github.com/insop/sched-deadline;protocol=git;branch=${KBRANCH}
>>>> \
>>>> +#           file://defconfig "
>>>> +KBRANCH = "standard/edf"
>>>> +SRC_URI =
>>>> "git://git.yoctoproject.org/linux-yocto-3.8;protocol=git;branch=${KBRANCH}
>>>> \
>>>>               file://defconfig "
>>>>
>>>>    PV = "3.8"
>>>> -PR = "dl7"
>>>> +PR = "dl"
>>>>
>>>>    KSRC ?= ""
>>>>    S = '${@base_conditional("KSRC", "", "${WORKDIR}/git", "${KSRC}", d)}'
>>>>
>>>> Thank you.
>>>>
>>>> Insop
>>>>
>>>> On Wed, Mar 6, 2013 at 8:00 PM, Bruce Ashfield
>>>> <bruce.ashfield at windriver.com>  wrote:
>>>>>
>>>>> On 13-03-05 1:54 AM, Insop Song wrote:
>>>>>>
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am preparing a new meta layer for testing and promoting a
>>>>>> sched_deadline scheduler, called "meta-dl". I am planning to add
>>>>>> scheduler testing tools and different kernel versions as well.
>>>>>> - http://insop.github.com/meta-dl/
>>>>>
>>>>>
>>>>>
>>>>> FYI: I've already merged and staged sched_dl in linux-yocto_3.8:
>>>>>
>>>>>
>>>>> http://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto-3.8/log/?h=standard/edf
>>>>>
>>>>> I'll be supporting it there as well, so it makes sense to coordinate
>>>>> our efforts around kernels, configurations and benchmarks.
>>>>>
>>>>> Juri and I talked about this @ ELC a few weeks ago (I've added
>>>>> him to the cc as well), and rather than hiding sched_deadline
>>>>> kernel support in a custom kernel layer, I'd like to try and get
>>>>> more eyes on it via linux-yocto .. so if we can all coordinate our
>>>>> efforts here, that would be much better.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Bruce
>>>>>
>>>>>>
>>>>>> With the help of hands-on kernel lab (thank you Tom and Darren), I am
>>>>>> able to make kernel with sched_deadline enabled.
>>>>>>
>>>>>>
>>>>>> Now, I am having some trouble of adding testing tools to this meta-dl,
>>>>>> and hope I can get some help from you.
>>>>>>
>>>>>> - problem: adding a new software into my meta-dl layer
>>>>>>
>>>>>> - symtom and questions?
>>>>>> 1. bitbake core-image-minimal (normal image build) won't include the
>>>>>> additional program that I listed in .bb file below
>>>>>> 2. If I do "bitbake schedtool-dl -c install" it builds and install,
>>>>>> but at "i586" location instead of my machine staging rootfs
>>>>>> (dl-qemux86)
>>>>>>
>>>>>>
>>>>>>
>>>>>> - Here is my .bb file that pulls an additional program.
>>>>>>
>>>>>>
>>>>>> https://github.com/insop/meta-dl/blob/sched-dl-V7/recipes-tools/schedtool-dl/schedtool-dl.bb
>>>>>> ===
>>>>>> DESCRIPTION = "schedtool-dl (scheduler test tool) for deadline
>>>>>> scheduler"
>>>>>> HOMEPAGE = "https://github.com/insop/schedtool-dl"
>>>>>> SECTION = "base"
>>>>>> LICENSE = "GPLv2"
>>>>>> LIC_FILES_CHKSUM =
>>>>>> "file://Makefile;endline=55;md5=e4b4e8ed9c2132e1d727a1bb5e3bd984"
>>>>>> PR = "r1"
>>>>>>
>>>>>> SRC_URI = "git://github.com/insop/schedtool-dl.git;protocol=git"
>>>>>> SRCREV = "${AUTOREV}"
>>>>>>
>>>>>> S = "${WORKDIR}/git"
>>>>>>
>>>>>> do_compile() {
>>>>>>            oe_runmake
>>>>>> }
>>>>>>
>>>>>> do_install() {
>>>>>>            oe_runmake install DESTDIR=${D}
>>>>>> }
>>>>>>
>>>>>> PARALLEL_MAKE = ""
>>>>>>
>>>>>> BBCLASSEXTEND = "native"
>>>>>>
>>>>>> COMPATIBLE_MACHINE_dl-qemux86 = "dl-qemux86"
>>>>>> ====
>>>>>>
>>>>>>
>>>>>> - I've updated my conf/layer.conf file to include above file
>>>>>> https://github.com/insop/meta-dl/blob/sched-dl-V7/conf/layer.conf
>>>>>> ====
>>>>>> # We have a conf and classes directory, add to BBPATH
>>>>>> BBPATH := "${BBPATH}:${LAYERDIR}"
>>>>>>
>>>>>> # We have a recipes directory, add to BBFILES
>>>>>> BBFILES := "${BBFILES} ${LAYERDIR}/recipes-*/*/*.bb \
>>>>>>            ${LAYERDIR}/recipes-*/*/*.bbappend"
>>>>>>
>>>>>> BBFILE_COLLECTIONS += "dl-qemux86"
>>>>>> BBFILE_PATTERN_dl-qemux86 := "^${LAYERDIR}/"
>>>>>> BBFILE_PRIORITY_dl-qemux86 = "6"
>>>>>> =====
>>>>>>
>>>>>>
>>>>>>
>>>>>> Thank you.
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Insop
>>>>>>
>>>>>>
>>>>>> - ref:
>>>>>> 1. sched_deadline:
>>>>>> https://events.linuxfoundation.org/events/linuxcon-europe/song
>>>>>> 2. sched_deadline:
>>>>>>
>>>>>>
>>>>>> http://events.linuxfoundation.org/images/stories/slides/elc2013_kobayashi.pdf?a
>>>>>> _______________________________________________
>>>>>> yocto mailing list
>>>>>> yocto at yoctoproject.org
>>>>>> https://lists.yoctoproject.org/listinfo/yocto
>>>>>
>>>>>
>>>>>
>>> _______________________________________________
>>> yocto mailing list
>>> yocto at yoctoproject.org
>>> https://lists.yoctoproject.org/listinfo/yocto
>>>
>>