[yocto] License problems when switching form RPM to DEB - looking for a easy way to fix it

[S.Jaritz at esa-grimma.de]

Hej

I switched from RPM to DEB because the board configuration should be 
handled by a package manager. By doing so I ran into a QA problem. All the 
software provided by my colleagues I maked with 

LICENSE = "CLOSED"

because they do not provide a license file. This works fine with the rpm 
generator, but when I use the debian generator - the QA from the 
"do_rootfs" fails with:
########################
ERROR: core-image-minimal-1.0-r0 do_rootfs: Error executing a python 
function in exec_python_func() autogenerated:

The stack trace of python calls that resulted in this exception/failure 
was:
File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
     0001:
 *** 0002:license_create_manifest(d)
     0003:
File: '/home/user/myTC/poky/meta/classes/license.bbclass', lineno: 48, 
function: license_create_manifest
     0044:    pkg_dic = {}
     0045:    for pkg in sorted(image_list_installed_packages(d)):
     0046:        pkg_info = os.path.join(d.getVar('PKGDATA_DIR', True),
     0047:                                'runtime-reverse', pkg)
 *** 0048:        pkg_name = os.path.basename(os.readlink(pkg_info))
     0049:
     0050:        pkg_dic[pkg_name] = 
oe.packagedata.read_pkgdatafile(pkg_info)
     0051:        if not "LICENSE" in pkg_dic[pkg_name].keys():
     0052:            pkg_lic_name = "LICENSE_" + pkg_name
Exception: OSError: [Errno 2] No such file or directory: 
'/home/user/myTC/poky/build/tmp/sysroots/sama5d3xek/pkgdata/runtime-reverse/mycontrol'

ERROR: core-image-minimal-1.0-r0 do_rootfs: Function failed: 
license_create_manifest
ERROR: Logfile of failure stored in: 
/home/user/myTC/poky/build/tmp/work/sama5d3xek-poky-linux-gnueabi/core-image-minimal/1.0-r0/temp/log.do_rootfs.69642
ERROR: Task 9 
(/home/user/myTC/poky/meta/recipes-core/images/core-image-minimal.bb, 
do_rootfs) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2383 tasks of which 2382 didn't need to be 
rerun and 1 failed.
No currently running tasks (2012 of 2388)
########################

Is there a way to avoid that or do I have to provide for every recipe a 
license file?

I found a contribution about that: 
https://www.yoctoproject.org/blogs/khem/2014/suppliment-common-licenses-yocto-project

But ${LAYERDIR} seem not to be set. Maybe a small example can explain my 
problem in a good way. I have a layer with the following struct and 
modifications:

meta-myLayer
|- licenses
|    -> myLicense
|- recipes-my
|    -> myrecipe.bb

@meta-myLayer:
LICENSE_PATH += "${LAYERDIR}/licenses"

@myrecipe.bb
LICENSE = "myLicense"

Where is my error/what do I have to do for avoiding to add for every 
recipe a license file?

Regards!

Stefan Jaritz
Entwickler

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