On 09/13/2018 10:18 PM, Dudziak Krzysztof wrote:
Hi,
Alex González elaborates in his book Embedded Linux Development Using
Yocto Projets (2nd Edition)
SDK-related questions – basics, building, usage (chapter 4).
1.
Downloading then installing precompiled SDK was one of all available
options according to Alex.
He elaborates how to find it on server in Internet, how to select
needed one and install it.
I wonder how to integrate downloaded and installed precompiled SDK
to Poky release used on build system?
I'd suggest you not using precompiled SDK unless you are justing doing
some simple cross compilation that requires no additional libs, header
files, etc.
2.
Preparing / building SDK by oneself was further option with image
target’s ‘populate_sdk’ Bitbake task
as the recommended way (according to Alex in chapter’s certain section).
One would need only to start populate_sdk task for image which matches
root file system of system in development.
As soon as task completed SDK can be installed using generated script.
But how does it work for first build where rootfs was not built in the
past.
Is in that case following procedure the proper one?
step 1: bitbake <image-name> -c populate_sdk
step 2: bitbake <image-name>
The populate_sdk task directly installs rpm packages (nativesdk ones and
target ones) to form an SDK.
It does not need rootfs to be generated first.
Normally you use an SDK for a specific target.
So the `bitbake IMAGE' is used to generate the image, and `bitbake IMAGE
-c populate_sdk' is used to generate the SDK for the image.
Best Regards,
Chen Qi
krzysiek
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