[OE-core] SDK meta-toolchain

[Mark Hatle]

On 5/7/13 11:09 AM, Kyle Farnsworth wrote:
> I'm a bit confused about what exactly meta-toolchain is building?  It
> seems to be bitbaking gcc and creating a toolchain with the prefix
> x86_64-oesdk-linux- (default SDK_PREFIX) but I'm not sure what it is.
> Is it a cross-compile for my target MACHINE or a compiler for my build
> machine?  Based on the prefix name I am assuming the latter.

There are two ways to generate an SDK.

* targeted SDK -- This is a meta-toolchain* recipe that lists -exactly- what is 
going to be in the SDK.  This is great if you want to limit your SDK to specific 
libraries for your application developers.

* implied / image based SDK -- This type of SDK bases off of what is in the 
image to generate an SDK that contains all of the libraries that are runnable 
inside of the image.  This is a very simple way to generate an SDK for 
application developers that -will- match the run-time image.

Both of the above have their place, depending on the level of command and 
control people want.

The basic meta-toolchain is just the cross compile toolchain and I believe the 
libc.  meta-toolchain-gmae is an example Gnome Mobile Application Environment.

--Mark

> Thanks for any help.
> Kyle
>
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