Re: #yocto llvm support #yocto


Monsees, Steven C (US)
 

 

So, does anyone know proper usage here?

 

Is this a fully functional llvm drop under ../poky/meta/recipes-devtools ?

Is it compatible with meta-clang?, and can they be used together to build 3rd party extensions for my platform ?

 

Is it better to add supported components this way rather than building them in directly to EXT SDK ?

 

Also, any known issues with meta-clang under zeus 3.0.4 ?

 

Thanks,

Steve

 

From: Monsees, Steven C (US)
Sent: Tuesday, April 20, 2021 10:01 AM
To: 'Anton Antonov' <anton.antonov@...>; yocto@...
Subject: RE: [yocto] #yocto llvm support

 

 

I noticed similar behavior…

 

I am running zeus 3.0.4, “devtool sdk-install llvm” will get llvm 8.0.1…

 

When I build meta-clang, and I set TOOLCHAIN?=”clang” in local.conf it appears to grab llvm-project-source-9.0.1-9.0.1…

 

From: yocto@... <yocto@...> On Behalf Of Anton Antonov
Sent: Tuesday, April 20, 2021 9:51 AM
To: yocto@...
Subject: Re: [yocto] #yocto llvm support

 

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Hi Steven,

  I used meta-clang in my recipes and I noticed that:
1. The current release of poky uses LLVM v11.1.0 by default (poky/meta/recipes-devtools/llvm/llvm_git.bb)
2. Meta-clang requires LLVM v12.0.0 (meta-clang/conf/layer.conf defines LLVMVERSION = "12.0.0")

As a result just including meta-clang into bblayers.conf will require bitbake to build a new version of LLVM and rebuild everything which uses it

Anton

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