On Sun, 2020-07-05 at 15:24 -0400, Robert P. J. Day wrote: > Quoting Ross Burton <r...@burtonini.com>: > > > On Sun, 5 Jul 2020 at 11:50, Robert P. J. Day <rpj...@crashcourse.ca> wrote: > > > however, one can also generate a standard SDK with the generic > > > (image-independent): > > > > > > $ bitbake meta-toolchain > > > > > > which clearly does not identify an image (all that recipe does, > > > really, is "inherit populate_sdk"), so i *guessed* that using that > > > command will generate a standard SDK based only on what can be found > > > in the various .conf files and associated variables (MACHINE, DISTRO, > > > etc.) without being tied to a particular image. > > > > > > just about to dive into the details, but is the above at least a > > > simplistic way of looking at it? > > > > At the most fundamental level, you've asked bitbake to build > > 'meta-toolchain'. Looking in meta-toolchain.bb will show you what > > that entails. It's basically just the compilers and a few other tools > > that were added as needed over the years. > > i'd assumed as much, but is there a reason that the meta-toolchain target > is not mentioned at all in the SDK manual? Would that not be the right > place to mention it, even briefly?
meta-toolchain is really old, from the days before the populate_sdk task for images existed. It was created as a compatibility artefact and as an example to show you could do standalone SDKs like that without images. I'd imagine its not mentioned as we envisaged the populate_sdk tasks taking over from meta-toolchain. I'm not even sure we test meta- toolchain on the autobuilder. It probably continues to work as its so similar to buildtools-tarball and friends. Should it be mentioned? Maybe... Cheers, Richard
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