[yocto] Issues building Extensible SDK

[Martin Siegumfeldt]

Hi,

We have a custom piece of (Zynq based) HW that we render a custom distro using Yocto. I am trying to build the extensible SDK but run into the below error:

pokyuser at 03c19f8798ba:/workdir/krogoth/build$ bitbake core-image-minimal -c populate_sdk_ext
Loading cache: 100% |################################################################################################################################################################################################################################################| Time: 0:00:00
Loaded 2675 entries from dependency cache.
Parsing recipes: 100% |##############################################################################################################################################################################################################################################| Time: 0:00:01
Parsing of 1915 .bb files complete (1913 cached, 2 parsed). 2677 targets, 377 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION        = "1.34.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "ubuntu-16.04"
TARGET_SYS        = "arm-oe-linux-gnueabi"
MACHINE           = "zynq-soft-z7000-mb-v2"
DISTRO            = "gomspace"
DISTRO_VERSION    = "2.0"
TUNE_FEATURES     = "arm armv7a vfp thumb neon callconvention-hard cortexa9"
TARGET_FPU        = "hard"
meta              = "pyro:9c75151116aa293dc8567c237d7e4da5bdec90e3"
meta-xilinx       = "pyro:18097af3120a394a8e6933b7abc85e73e508c7e3"
meta-oe
meta-filesystems
meta-networking
meta-python       = "pyro:dfbdd28d206a74bf264c2f7ee0f7b3e5af587796"
meta-z7000        = "pyro:b255ea4575b40d77a2f5dc9200de0718f979f175"

Initialising tasks: 100% |###########################################################################################################################################################################################################################################| Time: 0:00:03
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
ERROR: core-image-minimal-1.0-r0 do_populate_sdk_ext: 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:copy_buildsystem(d)
     0003:
File: '/workdir/krogoth/openembedded-core/meta/classes/populate_sdk_ext.bbclass', lineno: 298, function: copy_buildsystem
     0294:            f.write('TCLIBCAPPEND = ""\n')
     0295:            f.write('DL_DIR = "${TOPDIR}/downloads"\n')
     0296:
     0297:            f.write('INHERIT += "%s"\n' % 'uninative')
 *** 0298:            f.write('UNINATIVE_CHECKSUM[%s] = "%s"\n\n' % (d.getVar('BUILD_ARCH'), uninative_checksum))
     0299:            f.write('CONF_VERSION = "%s"\n\n' % d.getVar('CONF_VERSION', False))
     0300:
     0301:            # Some classes are not suitable for SDK, remove them from INHERIT
     0302:            f.write('INHERIT_remove = "%s"\n' % d.getVar('SDK_INHERIT_BLACKLIST', False))
Exception: UnboundLocalError: local variable 'uninative_checksum' referenced before assignment

ERROR: core-image-minimal-1.0-r0 do_populate_sdk_ext: Function failed: copy_buildsystem
ERROR: Logfile of failure stored in: /workdir/krogoth/build/tmp-glibc/work/zynq_soft_z7000_mb_v2-oe-linux-gnueabi/core-image-minimal/1.0-r0/temp/log.do_populate_sdk_ext.8408
ERROR: Task (/workdir/krogoth/openembedded-core/meta/recipes-core/images/core-image-minimal.bb:do_populate_sdk_ext) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2214 tasks of which 2210 didn't need to be rerun and 1 failed.

Summary: 1 task failed:
  /workdir/krogoth/openembedded-core/meta/recipes-core/images/core-image-minimal.bb:do_populate_sdk_ext
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.


The standard SDK builds successfully all the way back from Fido throughout Rocko, however we would now like to build the Extensible SDK. Krogoth version builds it successfully, but Pyro and Rocko throws the above error (haven't tested Morty).

I am unable to reproduce using Poky and thus assume it to be related to the configuration of our distro/image. Any suggestions are highly appreciated.

Thanks,
Martin
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