[bitbake-devel] 转发: About bitbake tasks

[Paul Eggleton]

On Thursday, 12 July 2018 12:15:07 PM CEST developer_agl at xtev.cn wrote:
> I’m new to bitbake. And I have some questions about bitbake tasks mechanism
> and inherit mechanism. If a xxx.bb recipe content like this :
> 
> ##start
> 
> DESCRIPTION = ”xxxxxxxxx”
> 
> XXX_XXXX = “${XXXXXXXX}”
> 
> inherit some_guys
> 
> ##end
> 
> And Bitbake User Manual said that ‘The minimally required class for BitBake
> is the classes/base.bbclass file. The base class is implicitly inherited by
> every recipe.’ So which .bbclass should be parsed first, some_guys.bbclass
> or base.bbclass? I’m really confused about that.

Effectively, base.bbclass will be parsed first, then the lines in the recipe 
up to inherit some_guys, then some_guys.bbclass, and then the lines in the 
recipe that follow (in this case just a comment).

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre