[bitbake-devel] source modification and re-build

[Jussi Kukkonen]

On 21 July 2016 at 13:32, nousi <bnousilal at gmail.com> wrote:

> please, ignore my previous mail.
> There was an issue with the option "-C", it should be "-c".
>
> I have compiled modified kernel using " bitbake -c compile -f nousi-linux"
> command but, it seems kernel image does not get update with new
> configuration at below path.
>
> "poky/build/tmp/deploy/images/nousi123k/"
>

You forced a kernel compile only, after that you probably want to
re-generate the image ("bitbake <image-name>").

Note that this method of modifying kernel configuration is not how you'd do
it in production: See
http://www.yoctoproject.org/docs/current/kernel-dev/kernel-dev.html#generating-configuration-files
for how to create a defconfig or a config fragment and
http://www.yoctoproject.org/docs/current/kernel-dev/kernel-dev.html#changing-the-configuration
for configuring your kernel with them.

Jussi


> Please, let me know if I am missing something in the process.
>
> On Thu, Jul 21, 2016 at 3:51 PM, nousi <bnousilal at gmail.com> wrote:
>
>> Hi Zhenhua Luo,
>>
>> Could not able to compile the kernel after changing the kernel
>> configuration using "bitbake -c menuconfig nousi-linux" command.
>> Please, have a look at the console logs below.
>>
>> #bitbake -C compile –f nousi-linux
>> NOTE: Preparing RunQueue
>> NOTE: Tainting hash to force rebuild of task
>> /projects/nousi-linux/nousilal/ns2/poky/build/../meta-nousi/common/recipes-kernel/linux/
>> nousi-linux_0.0.0.bb, do_rm_work_all
>> ERROR: Task do_compile is marked nostamp, cannot invalidate this task
>> ERROR: An uncaught exception occured in runqueue, please see the failure
>> below:
>> ERROR: Running idle function
>> Traceback (most recent call last):
>>   File
>> "/projects/nousi123-linux/nousilal/nn2/poky/bitbake/lib/bb/runqueue.py",
>> line 1094, in RunQueue.execute_runqueue():
>>              try:
>>     >            return self._execute_runqueue()
>>              except bb.runqueue.TaskFailure:
>>   File
>> "/projects/nousi123-linux/nousilal/nn2/poky/bitbake/lib/bb/runqueue.py",
>> line 1029, in RunQueue._execute_runqueue():
>>                  self.rqexe = RunQueueExecuteDummy(self)
>>     >            if self.rqdata.prepare() == 0:
>>                      self.state = runQueueComplete
>>   File
>> "/projects/nousi123-linux/nousilal/nn2/poky/bitbake/lib/bb/runqueue.py",
>> line 796, in RunQueueData.prepare():
>>                      for st in
>> self.cooker.configuration.invalidate_stamp.split(','):
>>     >                    invalidate_task(fn, "do_%s" % st, True)
>>
>>   File
>> "/projects/nousi123-linux/nousilal/nn2/poky/bitbake/lib/bb/runqueue.py",
>> line 780, in
>> invalidate_task(fn='/projects/nousi123-linux/nousilal/nn2/poky/build/../meta-nousi/common/recipes-kernel/linux/
>> nousi-linux_0.0.0.bb', taskname='do_compile', error_nostamp=True):
>>                      if error_nostamp:
>>     >                    bb.fatal("Task %s is marked nostamp, cannot
>> invalidate this task" % taskname)
>>                      else:
>>   File
>> "/projects/nousi123-linux/nousilal/nn2/poky/bitbake/lib/bb/__init__.py",
>> line 102, in fatal:
>>          logger.critical(''.join(args))
>>     >    raise BBHandledException()
>>
>> BBHandledException
>>
>> On Thu, Jul 21, 2016 at 9:30 AM, Zhenhua Luo <zhenhua.luo at nxp.com> wrote:
>>
>>> Hi Nousilal,
>>>
>>>
>>>
>>> “bitbake -c menuconfig nousi-linux” is used for changing the kernel
>>> configs instead of modifying source code, you can run “bitbake -C compile
>>> -f nousi-linux ” to force rebuild with updated kernel configs.
>>>
>>>
>>>
>>> To modify the source code, you can do it in
>>> tmp/work-shared/<machine>/kernel-source/, then run “bitbake -C compile –f
>>> nousi-linux” to rebuild new kernel image.
>>>
>>>
>>>
>>>
>>>
>>> Best Regards,
>>>
>>>
>>>
>>> Zhenhua
>>>
>>>
>>>
>>> *From:* bitbake-devel-bounces at lists.openembedded.org [mailto:
>>> bitbake-devel-bounces at lists.openembedded.org] *On Behalf Of *nousi
>>> *Sent:* Wednesday, July 20, 2016 2:18 PM
>>> *To:* bitbake-devel at lists.openembedded.org
>>> *Subject:* [bitbake-devel] source modification and re-build
>>>
>>>
>>>
>>> Hi All,
>>>
>>>
>>>
>>> Am new to yocto environment, please let me know the process to change
>>> kernel source using "bitbake nousi-linux -c menuconfig".
>>>
>>>
>>>
>>> I can able to make changes using "bitbake nousi-linux -c menuconfig"
>>> this command but my changes were not included in the new re-built image.
>>>
>>> Am using the development linux source code.
>>>
>>> Any help is appreciated.
>>>
>>>
>>>
>>> --
>>>
>>>
>>> *Thanks & Regards, B.Nousilal,*
>>>
>>
>>
>>
>> --
>>
>>
>> *Thanks & Regards,B.Nousilal,*
>>
>
>
>
> --
>
>
> *Thanks & Regards,B.Nousilal,*
>
> --
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