[yocto] understanding recipes

[Jack Mitchell]

On 26/01/12 16:44, jfabernathy wrote:
> I'm trying to understand the concept of creating a recipe and having 
> it included in the build I do.
>
> For example, suppose I want to create the meta-intel/meta-cedartrail 
> BSP with the core-image-minimal image, but I wanted to include hello 
> world as shown in 3.1.2 Autotooled Package section of the Poky 
> reference Manual.
>
> Where do I put the recipe file?  I'm guessing a recipe-jfa directory 
> at the same level as the meta-cedartrail recipe-core, recipe-kernel, 
> recipe-graphic, recipe-bsp?
>
> I'm also assuming that helloworld.bb file would contain:
>
>      DESCRIPTION = "GNU Helloworld application"
>      SECTION = "examples"
>      LICENSE = "GPLv2+"
>      LIC_FILES_CHKSUM = 
> "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
>      PR = "r0"
>
>      SRC_URI = "${GNU_MIRROR}/hello/hello-${PV}.tar.gz"
>
>      inherit autotools gettext
>
>
> So where do the values of ${GNU_MIRROR|, and ${PV} get set correctly?
>
> And what does the following line do or require me to do:
>
>  LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"

http://www.yoctoproject.org/docs/latest/poky-ref-manual/poky-ref-manual.html#usingpoky-configuring-LIC_FILES_CHKSUM

>
> Is this all that is needed to get helloworld put into /usr/bin so it 
> can be executed at the command line when the image is booted?
>
> Jim A
>
>
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