Martin Jansa 7df5f405ce bitbake: prserv: handle PRSERV_HOST = "127.0.0.1:0" the same as "localhost:0"
* When using PRSERV_HOST = "localhost:0" inside
  Docker container (tested with ubuntu 20.04 and 21.04) the
  self.loop.run_until_complete never completed, so self.address
  wasn't ever assigned few lines bellow and then
    self.port = int(self.prserv.address.rsplit(':', 1)[1])
  in lib/prserv/serv.py caused a bit ugly exception:

bitbake@599696cd20aa:~/nodistro/honister$ bitbake -k pkgconfig-native
Traceback (most recent call last):
  File "/OE/nodistro/honister/bitbake/bin/bitbake", line 35, in <module>
    sys.exit(bitbake_main(BitBakeConfigParameters(sys.argv),
  File "/OE/nodistro/honister/bitbake/lib/bb/main.py", line 385, in bitbake_main
    return ui_module.main(server_connection.connection, server_connection.events,
  File "/OE/nodistro/honister/bitbake/lib/bb/ui/knotty.py", line 397, in main
    params.updateToServer(server, os.environ.copy())
  File "/OE/nodistro/honister/bitbake/lib/bb/cookerdata.py", line 75, in updateToServer
    raise Exception("Unable to update the server configuration with local parameters: %s" % error)
Exception: Unable to update the server configuration with local parameters: Traceback (most recent call last):
  File "/OE/nodistro/honister/bitbake/lib/bb/command.py", line 90, in runCommand
    result = command_method(self, commandline)
  File "/OE/nodistro/honister/bitbake/lib/bb/command.py", line 286, in updateConfig
    command.cooker.updateConfigOpts(options, environment, cmdline)
  File "/OE/nodistro/honister/bitbake/lib/bb/cooker.py", line 491, in updateConfigOpts
    self.reset()
  File "/OE/nodistro/honister/bitbake/lib/bb/cooker.py", line 1717, in reset
    self.handlePRServ()
  File "/OE/nodistro/honister/bitbake/lib/bb/cooker.py", line 383, in handlePRServ
    self.prhost = prserv.serv.auto_start(self.data)
  File "/OE/nodistro/honister/bitbake/lib/prserv/serv.py", line 318, in auto_start
    singleton.start()
  File "/OE/nodistro/honister/bitbake/lib/prserv/serv.py", line 133, in start
    self.port = int(self.prserv.address.rsplit(':', 1)[1])
AttributeError: 'NoneType' object has no attribute 'rsplit'

* the issue was caused by "localhost" being resolved as IPv6 address ::1
  and then asyncio failing to bind it, the same is reproducible with hashserv, but
  hashserve at least shows nice error message:
    bitbake$ bitbake-hashserv -l DEBUG -b localhost:0
    Traceback (most recent call last):
      File "/OE/nodistro/honister/bitbake/bin/bitbake-hashserv", line 59, in <module>
        ret = main()
      File "/OE/nodistro/honister/bitbake/bin/bitbake-hashserv", line 53, in main
        server.serve_forever()
      File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 233, in serve_forever
        self.start()
      File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 144, in start_tcp
        self.server = self.loop.run_until_complete(server_coro)
      File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
        return future.result()
      File "/usr/lib/python3.8/asyncio/streams.py", line 94, in start_server
        return await loop.create_server(factory, host, port, **kwds)
      File "/usr/lib/python3.8/asyncio/base_events.py", line 1463, in create_server
        raise OSError(err.errno, 'error while attempting '
    OSError: [Errno 99] error while attempting to bind on address ('::1', 0, 0, 0): cannot assign requested address

* or by bitbake-prserv in prserv.log:
    bitbake$ bitbake-prserv --start --host=localhost --port=42005
    bitbake$ cat prserv.log
    Traceback (most recent call last):
      File "/OE/nodistro/honister/bitbake/bin/bitbake-prserv", line 55, in <module>
        ret = main()
      File "/OE/nodistro/honister/bitbake/bin/bitbake-prserv", line 46, in main
        ret=prserv.serv.start_daemon(options.dbfile, options.host, options.port,os.path.abspath(options.logfile), options.read_only)
      File "/OE/nodistro/honister/bitbake/lib/prserv/serv.py", line 226, in start_daemon
        run_as_daemon(daemon_main, pidfile, os.path.abspath(logfile))
      File "/OE/nodistro/honister/bitbake/lib/prserv/serv.py", line 202, in run_as_daemon
        func()
      File "/OE/nodistro/honister/bitbake/lib/prserv/serv.py", line 224, in daemon_main
        server.serve_forever()
      File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 233, in serve_forever
        self.start()
      File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 144, in start_tcp
        self.server = self.loop.run_until_complete(server_coro)
      File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
        return future.result()
      File "/usr/lib/python3.8/asyncio/streams.py", line 94, in start_server
        return await loop.create_server(factory, host, port, **kwds)
      File "/usr/lib/python3.8/asyncio/base_events.py", line 1463, in create_server
        raise OSError(err.errno, 'error while attempting '
    OSError: [Errno 99] error while attempting to bind on address ('::1', 42005, 0, 0): cannot assign requested address

* while 127.0.0.1 works fine:
    bitbake$ bitbake-prserv --start --host=127.0.0.1 --port=42005
    bitbake$ cat prserv.log
    DEBUG: Listening on ('127.0.0.1', 42005)
    2021-08-26 22:28:05,828 Listening on ('127.0.0.1', 42005)
    DEBUG: Opening PRServ database 'file:/OE/nodistro/honister/prserv.sqlite3'
    2021-08-26 22:28:05,829 Opening PRServ database 'file:/OE/nodistro/honister/prserv.sqlite3'
    NOTE: Started PRServer with DBfile: /OE/nodistro/honister/prserv.sqlite3, Address: 127.0.0.1:42005, PID: 39
    2021-08-26 22:28:05,831 Started PRServer with DBfile: /OE/nodistro/honister/prserv.sqlite3, Address: 127.0.0.1:42005, PID: 39

  but 127.0.0.1:0 wasn't handled as "autostart" like localhost:0 is
  update is_local_special to allow that

* /etc/hosts file generated by docker contails localhost for both IPv4 and IPv6:
  $ grep localhost /etc/hosts
  127.0.0.1       localhost
  ::1     localhost ip6-localhost ip6-loopback

  even when ipv6 is disabled in dockerd as reported in:
  https://github.com/docker/for-linux/issues/250

* add a check for self.prserv.address to provide better error message:
  ERROR: Unable to start PR Server, exitting
  when something bad happens, but in this case you still need to read
  bitbake-cookerdaemon.log to see the actuall error, in this case:

90 22:30:39.008441 --- Starting bitbake server pid 90 at 2021-08-26 22:30:39.008419 ---
90 22:30:39.023734 Started bitbake server pid 90
90 22:30:39.024286 Entering server connection loop
90 22:30:39.024753 Accepting [<socket.socket fd=6, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0, laddr=bitbake.sock>] ([])
90 22:30:39.026314 Processing Client
90 22:30:39.026456 Connecting Client
90 22:30:39.027509 Running command ['setFeatures', [2]]
90 22:30:39.027757 Command Completed
90 22:30:39.028711 Running command ['updateConfig', {'abort': False, 'force': False, 'invalidate_stamp': None, 'dry_run': False, 'dump_signatures': [], 'extra_assume_provided': [], 'profile': False, 'prefile': [], 'postfile': [], 'server_timeout': None, 'nosetscene': False, 'setsceneonly': False, 'skipsetscene': False, 'runall': None, 'runonly': None, 'writeeventlog': None, 'build_verbose_shell': False, 'build_verbose_stdout': False, 'default_loglevel': 20, 'debug_domains': {}}, {'DISTRO': '', 'PWD': '/OE/nodistro/honister', 'HOME': '/OE', 'MACHINE': 'qemux86', 'BB_ENV_EXTRAWHITE': 'MACHINE DISTRO TCMODE TCLIBC http_proxy ftp_proxy https_proxy all_proxy ALL_PROXY no_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY SDKMACHINE BB_NUMBER_THREADS PARALLEL_MAKE GIT_PROXY_COMMAND GIT_PROXY_IGNORE SOCKS5_PASSWD SOCKS5_USER WEBOS_DISTRO_BUILD_ID PSEUDO_DISABLED PSEUDO_BUILD', 'PATH': '/OE/nodistro/honister/oe-core/scripts:/OE/nodistro/honister/bitbake/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin', 'LC_ALL': 'en_US.UTF-8', 'MACHINES': 'qemux86', 'HOSTNAME': '6a439759e3c6', 'TOPDIR': '/OE/nodistro/honister', 'LANG': 'en_US.UTF-8', 'TERM': 'xterm', 'SHLVL': '1', 'BITBAKE_HOME': '/OE', 'BUILDDIR': '/OE/nodistro/honister/BUILD', 'OLDPWD': '/OE/nodistro/honister/bitbake', '_': '/OE/nodistro/honister/bitbake/bin/bitbake'}, ['/OE/nodistro/honister/bitbake/bin/bitbake', '-k', 'zlib-native']]
Process Process-1:
Traceback (most recent call last):
  File "/usr/lib/python3.8/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/lib/python3.8/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 255, in run
    self.start()
  File "/OE/nodistro/honister/bitbake/lib/bb/asyncrpc/serv.py", line 144, in start_tcp
    self.server = self.loop.run_until_complete(server_coro)
  File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
    return future.result()
  File "/usr/lib/python3.8/asyncio/streams.py", line 94, in start_server
    return await loop.create_server(factory, host, port, **kwds)
  File "/usr/lib/python3.8/asyncio/base_events.py", line 1463, in create_server
    raise OSError(err.errno, 'error while attempting '
OSError: [Errno 99] error while attempting to bind on address ('::1', 0, 0, 0): cannot assign requested address
90 22:30:39.530037 Command Completed
90 22:30:39.530913 Processing Client
90 22:30:39.531023 Disconnecting Client
90 22:30:39.531638 No timeout, exiting.
90 22:30:39.632137 Exiting
90 22:30:39.637562 Original lockfile contents: ['90\n']
90 22:30:39.638107 Exiting as we could obtain the lock

(Bitbake rev: c2cdda0e5fc720c60d3b8537fc702cb118981bd2)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2021-09-01 18:56:25 +01:00
2021-09-01 18:48:47 +01:00
2021-07-19 18:07:21 +01:00

Poky

Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/

OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.

Contribution Guidelines

The project works using a mailing list patch submission process. Patches should be sent to the mailing list for the repository the components originate from (see below). Throughout the Yocto Project, the README files in the component in question should detail where to send patches, who the maintainers are and where bugs should be reported.

A guide to submitting patches to OpenEmbedded is available at:

http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded

There is good documentation on how to write/format patches at:

https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines

Where to Send Patches

As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:

OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):

BitBake (files in bitbake/):

Documentation (files in documentation/):

meta-yocto (files in meta-poky/, meta-yocto-bsp/):

If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.

CII Best Practices

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