[yocto] Keeping and modifying Source code in Yocto

[ChenQi]

On 07/10/2018 02:18 PM, Paul Eggleton wrote:
> On Tuesday, 10 July 2018 3:32:56 AM CEST ChenQi wrote:
>> I usually use the following steps when I need to modify source for some
>> purpose.
>>
>> 1. bitbake A (or at least bitbake A -c configure)
>> *2. cd tmp/work/xxxxx/A/<source dir>**
>> **3. make the modification*
>> 4. bitbake A -c compile -f
>> 5. bitbake A
>>
>> If you find the modification useful, make a patch from it.
> This is the old way of doing it which can under some circumstances result in
> you losing your changes to the source tree, since the sources under tmp/work/
> are only ever intended to be there temporarily. Devtool (as recommend by
> others on this thread) is designed to enable this workflow in a much safer
> manner.
>
> Cheers,
> Paul
>
Thanks Paul. I'll turn to use devtool.

Best Regards,

Chen Qi