On Mon, May 03, 2021 at 03:41:50PM -0400, Robert P. J. Day wrote:
> On Mon, 3 May 2021, Andre McCurdy wrote:
>
> > On Mon, May 3, 2021 at 7:55 AM Robert P. J. Day <[email protected]>
> > wrote:
> > >
> > > colleague asks a simple question (and i'm not in front of my dev
> > > box at the moment so i can't verify what i'm about to suggest):
> > > how to add the header files in a given "-dev" package to the host
> > > component of the SDK?
> >
> > The implication of that is that you want to use a header file from a
> > host component of the SDK to be able to compile additional tools etc
> > to run on the host after the SDK has been created?
>
> i am *assuming* that's the plan, but i was provided with no actual
> rationale, only asked how to do it. i'm going to harangue people
> tomorrow regarding what they're after.
>
> > Normally the SDK tools etc which run on the host are all compiled as
> > part of creating the SDK, not afterwards.
>
> that's my understanding but, again, i'm just responding to a very
> specific request; i guess we'll soon see if that's the right approach
> to what they're looking for.
>
> > > i haven't spent a lot of time messing with SDKs (that is about to
> > > change), but as i read it, if one wants to add the contents of any
> > > given development package to the host SDK, it would look like:
> > >
> > > TOOLCHAIN_HOST_TASK_append = " nativesdk-fubar-dev"
> > >
> > > i have no idea what the rationale is here, i'm just trying to
> > > address the question, which in addition asks, "if you add something
> > > like that to the host side, is it automatically added to the target
> > > side?"
> >
> > It's not.
>
> i was pretty sure it wasn't but i tried a number of examples just to
> be absolutely sure. however, i did notice something i didn't
> understand. (this is my first foray into messing with SDKs so these
> will be simple questions.)
>
> as a test, i built a core-image-minimal for qemuarm64, then started
> playing with:
>
> TOOLCHAIN_HOST_TASK_append = " ..."
>
> to see what was added to the host manifest file.
>
> when i added:
>
> TOOLCHAIN_HOST_TASK_append = " nativesdk-expect"
>
> then, sure enough, that package was added to the host manifest file.
> however, when i added the -dev package:
>
> TOOLCHAIN_HOST_TASK_append = " nativesdk-expect-dev"
>
> then *both* packages were added, as in, the regular package was
> dragged along with the -dev package, which *seems* reasonable, but
> where in the code (class file?) is this processing done? put another
> way, under what circumstances will adding a -dev package to the host
> portion of the SDK necessarily add the primary package?
By default, ${PN}-dev RDEPENDS on ${PN} automatically, if not changed:
https://git.openembedded.org/openembedded-core/tree/meta/conf/bitbake.conf#n321
--
Regards,
Denys Dmytriyenko <[email protected]>
PGP: 0x420902729A92C964 - https://denix.org/0x420902729A92C964
Fingerprint: 25FC E4A5 8A72 2F69 1186 6D76 4209 0272 9A92 C964
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