[yocto] are separate -sdk image targets necessary Was: Build external module against Yocto kernel

[Burton, Ross]

On 23 January 2013 16:51, Trevor Woerner <twoerner at gmail.com> wrote:
> On Tue, Jan 15, 2013 at 2:16 PM, Zhang, Jessica <jessica.zhang at intel.com> wrote:
>> According to bug 1614, the kernel dev packages should be
>> included in sdk images. Please generate your toolchain using
>> "bitbake core-image-sato-sdk -c populate_sdk" which will
>> make the toolchain target sysroot matching your image's
>> sysroot (this is a new feature of 1.3) as long as your image
>> is a sdk image.
>
> I am a bit confused by the above email. To me it appears as if Jessica
> is saying: "add '-c populate_sdk' to the build of an -sdk image".
>
> But if we look at this email from Mark Hatle:
> http://www.mail-archive.com/yocto@yoctoproject.org/msg10636.html
>
> I get the impression that Mark is saying: "now that '-c populate_sdk'
> is available, there no longer is any need for separate -sdk images".
>
> Am I confusing two different things with each other?

My understanding was that populate_sdk will take the package set from
an image, add compilers and all development packages, and produce a
SDK.  So all you need is your production image, and then you can
generate a SDK from that.

Ross