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

[Bruce Ashfield]

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
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