[bitbake-devel] 答复: 转发: About bitbake tasks
developer_agl at xtev.cn
developer_agl at xtev.cn
Fri Jul 13 01:45:40 UTC 2018
Hi Paul,
So, bitbake will parse base.bbclass first and then execute the code line by line until parse "inherit some_guys", does it? And if I modify the content of the .bb recipe like this:
## start
require xxxxx.inc
DESCRIPTION = "xxx"
PACKAGES = "xxx"
inherit others-1 others-2
PACKAGES += "yyy"
inherit others-3 others-4
## end
So, I think the flow is
And, am I right?
Thanks.
-----邮件原件-----
发件人: Paul Eggleton <paul.eggleton at linux.intel.com>
发送时间: 2018年7月12日 18:51
收件人: developer_agl at xtev.cn
抄送: bitbake-devel at lists.openembedded.org
主题: Re: [bitbake-devel] 转发: About bitbake tasks
On Thursday, 12 July 2018 12:15:07 PM CEST <mailto:developer_agl at xtev.cn> 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
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