[yocto] native recipe and sysroot-destdir troubles

[Philip Tricca]

Worked out a solution to this issue.  For the sake of brevity it can be
found here:

http://twobit.us/blog/2012/04/openembedded-yocto-native-hello-world/

Cheers,
- Philip

On 04/12/2012 07:55 PM, Philip Tricca wrote:
> More / better info:
> 
> On 04/12/2012 10:44 AM, Philip Tricca wrote:
>> I'm working on two new recipes and both are working quite well.  Now I
>> need native variants and online sources indicate this should be done
>> through BBCLASSEXTEND = "native".  For one of my recipes this works
>> fine, for the other not so much.
>>
>> The error I'm seeing seems to be in the staging of the sysroot-destdir
>> which ends up being empty though the source code builds fine (image
>> directory has everything expected). do_populate_sysroot seems to assume
>> there's a directory structure present which ends up being empty causing
>> an error when it trys to tar the directory up.  If I create the
>> directories do_populate_sysroot expects the recipe runs to completion
>> but sysroot-destdir still ends up being empty and no packages are built.
> 
> Image directiory is populated as expected (has lib, usr/include etc with
> expected files).  Build is failing on populate_sysroot:
> 
> CalledProcessError: Command 'tar -cf - -C
> /home/build/poky-edison-6.0/build/tmp/work/i686-linux/libmylib-native-2.1.4-r0/sysroot-destdir///home/build/poky-edison-6.0/build/tmp/sysroots/i686-linux
> -ps . | tar -xf - -C
> /home/build/poky-edison-6.0/build/tmp/sysroots/i686-linux' returned
> non-zero exit status 2 with output tar:
> /home/build/poky-edison-6.0/build/tmp/work/i686-linux/libmylib-native-2.1.4-r0/sysroot-destdir///home/build/poky-edison-6.0/build/tmp/sysroots/i686-linux:
> Cannot chdir: No such file or directory
> tar: Error is not recoverable: exiting now
> 
> The failure is obviously due to sysroot-destdir being empty.  The
> question is why this directory is populated for libmylib but not for
> libmylib-native ... they're built from the same recipe.
> 
> Stack trace:
> 
> ERROR: The stack trace of python calls that resulted in this
> exception/failure was:
> ERROR:   File "sstate_task_postfunc", line 10, in <module>
> ERROR:
> ERROR:   File "sstate_task_postfunc", line 4, in sstate_task_postfunc
> ERROR:
> ERROR:   File "sstate.bbclass", line 19, in sstate_install
> ERROR:
> ERROR:   File "/home/build/poky-edison-6.0/meta/lib/oe/path.py", line
> 59, in copytree
> ERROR:     check_output(cmd, shell=True, stderr=subprocess.STDOUT)
> ERROR:
> ERROR:   File "/home/build/poky-edison-6.0/meta/lib/oe/path.py", line
> 121, in check_output
> ERROR:     raise CalledProcessError(retcode, cmd, output=output)
> ERROR:
> ERROR: The code that was being executed was:
> ERROR:      0006:        bb.build.exec_func(intercept, d)
> ERROR:      0007:    sstate_package(shared_state, d)
> ERROR:      0008:
> ERROR:      0009:
> ERROR:  *** 0010:sstate_task_postfunc(d)
> ERROR:      0011:
> ERROR: (file: 'sstate_task_postfunc', lineno: 10, function: <module>)
> ERROR:      0001:
> ERROR:      0002:def sstate_task_postfunc(d):
> ERROR:      0003:    shared_state = sstate_state_fromvars(d)
> ERROR:  *** 0004:    sstate_install(shared_state, d)
> ERROR:      0005:    for intercept in shared_state['interceptfuncs']:
> ERROR:      0006:        bb.build.exec_func(intercept, d)
> ERROR:      0007:    sstate_package(shared_state, d)
> ERROR:      0008:
> ERROR: (file: 'sstate_task_postfunc', lineno: 4, function:
> sstate_task_postfunc)
> ERROR: Function 'sstate_task_postfunc' failed
> 
> Thanks,
> - Philip
>