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

Insop Song insop.song at gmail.com
Thu Mar 7 14:02:57 PST 2013 

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".

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
>>>>
>>>>
>>>>
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>

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