diff --git a/poky/bitbake/bin/bitbake-diffsigs b/poky/bitbake/bin/bitbake-diffsigs
index 6646dcc..cf4cc70 100755
--- a/poky/bitbake/bin/bitbake-diffsigs
+++ b/poky/bitbake/bin/bitbake-diffsigs
@@ -60,7 +60,7 @@
 
     if sig1 and sig2:
         sigfiles = find_siginfo(bbhandler, pn, taskname, [sig1, sig2])
-        if len(sigfiles) == 0:
+        if not sigfiles:
             logger.error('No sigdata files found matching %s %s matching either %s or %s' % (pn, taskname, sig1, sig2))
             sys.exit(1)
         elif not sig1 in sigfiles:
@@ -86,7 +86,7 @@
     hashfiles = find_siginfo(tinfoil, key, None, hashes)
 
     recout = []
-    if len(hashfiles) == 0:
+    if not hashfiles:
         recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
     elif not hash1 in hashfiles:
         recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash1))
diff --git a/poky/bitbake/bin/bitbake-worker b/poky/bitbake/bin/bitbake-worker
index bf96207..3aaf3c2 100755
--- a/poky/bitbake/bin/bitbake-worker
+++ b/poky/bitbake/bin/bitbake-worker
@@ -152,6 +152,10 @@
     fakeenv = {}
     umask = None
 
+    uid = os.getuid()
+    gid = os.getgid()
+
+
     taskdep = workerdata["taskdeps"][fn]
     if 'umask' in taskdep and taskname in taskdep['umask']:
         umask = taskdep['umask'][taskname]
@@ -257,6 +261,10 @@
 
                 bb.utils.set_process_name("%s:%s" % (the_data.getVar("PN"), taskname.replace("do_", "")))
 
+                if not the_data.getVarFlag(taskname, 'network', False):
+                    logger.debug("Attempting to disable network")
+                    bb.utils.disable_network(uid, gid)
+
                 # exported_vars() returns a generator which *cannot* be passed to os.environ.update() 
                 # successfully. We also need to unset anything from the environment which shouldn't be there 
                 exports = bb.data.exported_vars(the_data)
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst
index a4b1efb..7b37f66 100644
--- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst
@@ -435,7 +435,7 @@
 executes the script. The generated shell script contains all the
 exported variables, and the shell functions with all variables expanded.
 Output from the shell script goes to the file
-``${T}/log.do_taskname.pid``. Looking at the expanded shell functions in
+``${``\ :term:`T`\ ``}/log.do_taskname.pid``. Looking at the expanded shell functions in
 the run file and the output in the log files is a useful debugging
 technique.
 
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.rst
index 4396830..77384cf 100644
--- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.rst
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.rst
@@ -84,18 +84,18 @@
 Here are some examples that show commonly used mirror definitions::
 
    PREMIRRORS ?= "\
-      bzr://.*/.\*  http://somemirror.org/sources/ \\n \
-      cvs://.*/.\*  http://somemirror.org/sources/ \\n \
-      git://.*/.\*  http://somemirror.org/sources/ \\n \
-      hg://.*/.\*   http://somemirror.org/sources/ \\n \
-      osc://.*/.\*  http://somemirror.org/sources/ \\n \
-      p4://.*/.\*   http://somemirror.org/sources/ \\n \
-     svn://.*/.\*   http://somemirror.org/sources/ \\n"
+      bzr://.*/.\*  http://somemirror.org/sources/ \
+      cvs://.*/.\*  http://somemirror.org/sources/ \
+      git://.*/.\*  http://somemirror.org/sources/ \
+      hg://.*/.\*   http://somemirror.org/sources/ \
+      osc://.*/.\*  http://somemirror.org/sources/ \
+      p4://.*/.\*   http://somemirror.org/sources/ \
+     svn://.*/.\*   http://somemirror.org/sources/"
 
    MIRRORS =+ "\
-      ftp://.*/.\*   http://somemirror.org/sources/ \\n \
-      http://.*/.\*  http://somemirror.org/sources/ \\n \
-      https://.*/.\* http://somemirror.org/sources/ \\n"
+      ftp://.*/.\*   http://somemirror.org/sources/ \
+      http://.*/.\*  http://somemirror.org/sources/ \
+      https://.*/.\* http://somemirror.org/sources/"
 
 It is useful to note that BitBake
 supports cross-URLs. It is possible to mirror a Git repository on an
@@ -167,6 +167,9 @@
 -  *dos:* Applies to ``.zip`` and ``.jar`` files and specifies whether
    to use DOS line ending conversion on text files.
 
+-  *striplevel:* Strip specified number of leading components (levels)
+   from file names on extraction
+
 -  *subdir:* Unpacks the specific URL to the specified subdirectory
    within the root directory.
 
@@ -226,6 +229,11 @@
 :term:`DL_DIR` when dealing with multiple files that
 have the same name.
 
+If a username and password are specified in the ``SRC_URI``, a Basic
+Authorization header will be added to each request, including across redirects.
+To instead limit the Authorization header to the first request, add
+"redirectauth=0" to the list of parameters.
+
 Some example URLs are as follows::
 
    SRC_URI = "http://oe.handhelds.org/not_there.aac"
@@ -388,6 +396,19 @@
    protocol is "file". You can also use "http", "https", "ssh" and
    "rsync".
 
+   .. note::
+
+     When ``protocol`` is "ssh", the URL expected in :term:`SRC_URI` differs
+     from the one that is typically passed to ``git clone`` command and provided
+     by the Git server to fetch from. For example, the URL returned by GitLab
+     server for ``mesa`` when cloning over SSH is
+     ``git@gitlab.freedesktop.org:mesa/mesa.git``, however the expected URL in
+     :term:`SRC_URI` is the following::
+
+       SRC_URI = "git://git@gitlab.freedesktop.org/mesa/mesa.git;protocol=ssh;..."
+
+     Note the ``:`` character changed for a ``/`` before the path to the project.
+
 -  *"nocheckout":* Tells the fetcher to not checkout source code when
    unpacking when set to "1". Set this option for the URL where there is
    a custom routine to checkout code. The default is "0".
@@ -438,6 +459,7 @@
 
    SRC_URI = "git://git.oe.handhelds.org/git/vip.git;tag=version-1"
    SRC_URI = "git://git.oe.handhelds.org/git/vip.git;protocol=http"
+   SRC_URI = "git://git@gitlab.freedesktop.org/mesa/mesa.git;protocol=ssh;..."
 
 .. note::
 
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.rst
index 42263ce..1c31c1f 100644
--- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.rst
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.rst
@@ -537,7 +537,7 @@
 -  ``pn-buildlist``: Shows a simple list of targets that are to be
    built.
 
-To stop depending on common depends, use the "-I" depend option and
+To stop depending on common depends, use the ``-I`` depend option and
 BitBake omits them from the graph. Leaving this information out can
 produce more readable graphs. This way, you can remove from the graph
 :term:`DEPENDS` from inherited classes such as ``base.bbclass``.
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
index 119720d..8496e1d 100644
--- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst
@@ -104,15 +104,15 @@
 
 Outside of :ref:`functions <bitbake-user-manual/bitbake-user-manual-metadata:functions>`,
 BitBake joins any line ending in
-a backslash character ("\") with the following line before parsing
-statements. The most common use for the "\" character is to split
+a backslash character ("\\") with the following line before parsing
+statements. The most common use for the "\\" character is to split
 variable assignments over multiple lines, as in the following example::
 
    FOO = "bar \
           baz \
           qaz"
 
-Both the "\" character and the newline
+Both the "\\" character and the newline
 character that follow it are removed when joining lines. Thus, no
 newline characters end up in the value of ``FOO``.
 
@@ -125,7 +125,7 @@
 
 .. note::
 
-   BitBake does not interpret escape sequences like "\n" in variable
+   BitBake does not interpret escape sequences like "\\n" in variable
    values. For these to have an effect, the value must be passed to some
    utility that interprets escape sequences, such as
    ``printf`` or ``echo -n``.
@@ -159,7 +159,7 @@
    C = "qux"
    *At this point, ${A} equals "qux bar baz"*
    B = "norf"
-   *At this point, ${A} equals "norf baz"\*
+   *At this point, ${A} equals "norf baz"*
 
 Contrast this behavior with the
 :ref:`bitbake-user-manual/bitbake-user-manual-metadata:immediate variable
@@ -894,7 +894,7 @@
 Shell Functions
 ---------------
 
-Functions written in shell script and executed either directly as
+Functions written in shell script are executed either directly as
 functions, tasks, or both. They can also be called by other shell
 functions. Here is an example shell function definition::
 
@@ -944,7 +944,7 @@
    Overrides and override-style operators can be applied to any shell
    function, not just :ref:`tasks <bitbake-user-manual/bitbake-user-manual-metadata:tasks>`.
 
-You can use the ``bitbake -e`` recipename command to view the final
+You can use the ``bitbake -e recipename`` command to view the final
 assembled function after all overrides have been applied.
 
 BitBake-Style Python Functions
@@ -996,7 +996,7 @@
    recipename do_foo: second
    recipename do_foo: third
 
-You can use the ``bitbake -e`` recipename command to view
+You can use the ``bitbake -e recipename`` command to view
 the final assembled function after all overrides have been applied.
 
 Python Functions
@@ -1921,12 +1921,6 @@
    Specifies a function BitBake calls that determines whether BitBake
    requires a setscene dependency to be met.
 
--  :term:`BB_STAMP_POLICY`: Defines the mode
-   for comparing timestamps of stamp files.
-
--  :term:`BB_STAMP_WHITELIST`: Lists stamp
-   files that are looked at when the stamp policy is "whitelist".
-
 -  :term:`BB_TASKHASH`: Within an executing task,
    this variable holds the hash of the task as returned by the currently
    enabled signature generator.
diff --git a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
index e955beb..1bb55fc 100644
--- a/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
+++ b/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
@@ -374,12 +374,35 @@
       Specifies the Hash Equivalence server to use.
 
       If set to ``auto``, BitBake automatically starts its own server
-      over a UNIX domain socket.
+      over a UNIX domain socket. An option is to connect this server
+      to an upstream one, by setting :term:`BB_HASHSERVE_UPSTREAM`.
 
-      If set to ``host:port``, BitBake will use a remote server on the
+      If set to ``unix://path``, BitBake will connect to an existing
+      hash server available over a UNIX domain socket.
+
+      If set to ``host:port``, BitBake will connect to a remote server on the
       specified host. This allows multiple clients to share the same
       hash equivalence data.
 
+      The remote server can be started manually through
+      the ``bin/bitbake-hashserv`` script provided by BitBake,
+      which supports UNIX domain sockets too. This script also allows
+      to start the server in read-only mode, to avoid accepting
+      equivalences that correspond to Share State caches that are
+      only available on specific clients.
+
+   :term:`BB_HASHSERVE_UPSTREAM`
+      Specifies an upstream Hash Equivalence server.
+
+      This optional setting is only useful when a local Hash Equivalence
+      server is started (setting :term:`BB_HASHSERVE` to ``auto``),
+      and you wish the local server to query an upstream server for
+      Hash Equivalence data.
+
+      Example usage::
+
+         BB_HASHSERVE_UPSTREAM = "typhoon.yocto.io:8687"
+
    :term:`BB_INVALIDCONF`
       Used in combination with the ``ConfigParsed`` event to trigger
       re-parsing the base metadata (i.e. all the recipes). The
@@ -526,29 +549,6 @@
       -  *clear* - Queries the source controls system every time. With this
          policy, there is no cache. The "clear" policy is the default.
 
-   :term:`BB_STAMP_POLICY`
-      Defines the mode used for how timestamps of stamp files are compared.
-      You can set the variable to one of the following modes:
-
-      -  *perfile* - Timestamp comparisons are only made between timestamps
-         of a specific recipe. This is the default mode.
-
-      -  *full* - Timestamp comparisons are made for all dependencies.
-
-      -  *whitelist* - Identical to "full" mode except timestamp
-         comparisons are made for recipes listed in the
-         :term:`BB_STAMP_WHITELIST` variable.
-
-      .. note::
-
-         Stamp policies are largely obsolete with the introduction of
-         setscene tasks.
-
-   :term:`BB_STAMP_WHITELIST`
-      Lists files whose stamp file timestamps are compared when the stamp
-      policy mode is set to "whitelist". For information on stamp policies,
-      see the :term:`BB_STAMP_POLICY` variable.
-
    :term:`BB_STRICT_CHECKSUM`
       Sets a more strict checksum mechanism for non-local URLs. Setting
       this variable to a value causes BitBake to report an error if it
@@ -1333,67 +1333,103 @@
       The list of source files - local or remote. This variable tells
       BitBake which bits to pull for the build and how to pull them. For
       example, if the recipe or append file needs to fetch a single tarball
-      from the Internet, the recipe or append file uses a :term:`SRC_URI` entry
-      that specifies that tarball. On the other hand, if the recipe or
-      append file needs to fetch a tarball and include a custom file, the
-      recipe or append file needs an :term:`SRC_URI` variable that specifies
-      all those sources.
+      from the Internet, the recipe or append file uses a :term:`SRC_URI`
+      entry that specifies that tarball. On the other hand, if the recipe or
+      append file needs to fetch a tarball, apply two patches, and include
+      a custom file, the recipe or append file needs an :term:`SRC_URI`
+      variable that specifies all those sources.
 
-      The following list explains the available URI protocols:
+      The following list explains the available URI protocols. URI
+      protocols are highly dependent on particular BitBake Fetcher
+      submodules. Depending on the fetcher BitBake uses, various URL
+      parameters are employed. For specifics on the supported Fetchers, see
+      the :ref:`bitbake-user-manual/bitbake-user-manual-fetching:fetchers`
+      section.
 
-      -  ``file://`` : Fetches files, which are usually files shipped
-         with the metadata, from the local machine. The path is relative to
-         the :term:`FILESPATH` variable.
+      -  ``az://`` : Fetches files from an Azure Storage account using HTTPS.
 
       -  ``bzr://`` : Fetches files from a Bazaar revision control
          repository.
 
-      -  ``git://`` : Fetches files from a Git revision control
+      -  ``ccrc://`` - Fetches files from a ClearCase repository.
+
+      -  ``cvs://`` : Fetches files from a CVS revision control
          repository.
 
-      -  ``osc://`` : Fetches files from an OSC (OpenSUSE Build service)
-         revision control repository.
+      -  ``file://`` - Fetches files, which are usually files shipped
+         with the Metadata, from the local machine.
+         The path is relative to the :term:`FILESPATH`
+         variable. Thus, the build system searches, in order, from the
+         following directories, which are assumed to be a subdirectories of
+         the directory in which the recipe file (``.bb``) or append file
+         (``.bbappend``) resides:
 
-      -  ``repo://`` : Fetches files from a repo (Git) repository.
+         -  ``${BPN}`` - The base recipe name without any special suffix
+            or version numbers.
 
-      -  ``http://`` : Fetches files from the Internet using HTTP.
+         -  ``${BP}`` - ``${BPN}-${PV}``. The base recipe name and
+            version but without any special package name suffix.
 
-      -  ``https://`` : Fetches files from the Internet using HTTPS.
+         -  *files -* Files within a directory, which is named ``files``
+            and is also alongside the recipe or append file.
 
       -  ``ftp://`` : Fetches files from the Internet using FTP.
 
-      -  ``cvs://`` : Fetches files from a CVS revision control
+      -  ``git://`` : Fetches files from a Git revision control
+         repository.
+
+      -  ``gitsm://`` : Fetches submodules from a Git revision control
          repository.
 
       -  ``hg://`` : Fetches files from a Mercurial (``hg``) revision
          control repository.
 
+      -  ``http://`` : Fetches files from the Internet using HTTP.
+
+      -  ``https://`` : Fetches files from the Internet using HTTPS.
+
+      -  ``npm://`` - Fetches JavaScript modules from a registry.
+
+      -  ``osc://`` : Fetches files from an OSC (OpenSUSE Build service)
+         revision control repository.
+
       -  ``p4://`` : Fetches files from a Perforce (``p4``) revision
          control repository.
 
+      -  ``repo://`` : Fetches files from a repo (Git) repository.
+
       -  ``ssh://`` : Fetches files from a secure shell.
 
       -  ``svn://`` : Fetches files from a Subversion (``svn``) revision
          control repository.
 
-      -  ``az://`` : Fetches files from an Azure Storage account using HTTPS.
-
       Here are some additional options worth mentioning:
 
-      -  ``unpack`` : Controls whether or not to unpack the file if it is
-         an archive. The default action is to unpack the file.
+      -  ``downloadfilename`` : Specifies the filename used when storing
+         the downloaded file.
+
+      -  ``name`` - Specifies a name to be used for association with
+         :term:`SRC_URI` checksums or :term:`SRCREV` when you have more than one
+         file or git repository specified in :term:`SRC_URI`. For example::
+
+            SRC_URI = "git://example.com/foo.git;name=first \
+                       git://example.com/bar.git;name=second \
+                       http://example.com/file.tar.gz;name=third"
+
+            SRCREV_first = "f1d2d2f924e986ac86fdf7b36c94bcdf32beec15"
+            SRCREV_second = "e242ed3bffccdf271b7fbaf34ed72d089537b42f"
+            SRC_URI[third.sha256sum] = "13550350a8681c84c861aac2e5b440161c2b33a3e4f302ac680ca5b686de48de"
 
       -  ``subdir`` : Places the file (or extracts its contents) into the
          specified subdirectory. This option is useful for unusual tarballs
          or other archives that do not have their files already in a
          subdirectory within the archive.
 
-      -  ``name`` : Specifies a name to be used for association with
-         :term:`SRC_URI` checksums when you have more than one file specified
-         in :term:`SRC_URI`.
+      -  ``subpath`` - Limits the checkout to a specific subpath of the
+         tree when using the Git fetcher is used.
 
-      -  ``downloadfilename`` : Specifies the filename used when storing
-         the downloaded file.
+      -  ``unpack`` : Controls whether or not to unpack the file if it is
+         an archive. The default action is to unpack the file.
 
    :term:`SRCDATE`
       The date of the source code used to build the package. This variable
diff --git a/poky/bitbake/lib/bb/build.py b/poky/bitbake/lib/bb/build.py
index d6418e4..65b7fc0 100644
--- a/poky/bitbake/lib/bb/build.py
+++ b/poky/bitbake/lib/bb/build.py
@@ -714,19 +714,23 @@
                 logger.debug2("Zero size logfn %s, removing", logfn)
                 bb.utils.remove(logfn)
                 bb.utils.remove(loglink)
-    except bb.BBHandledException:
-        event.fire(TaskFailed(task, fn, logfn, localdata, True), localdata)
-        return 1
     except (Exception, SystemExit) as exc:
+        handled = False
+        if isinstance(exc, bb.BBHandledException):
+            handled = True
+
         if quieterr:
+            if not handled:
+                logger.warning(repr(exc))
             event.fire(TaskFailedSilent(task, fn, logfn, localdata), localdata)
         else:
             errprinted = errchk.triggered
             # If the output is already on stdout, we've printed the information in the
             # logs once already so don't duplicate
-            if verboseStdoutLogging:
+            if verboseStdoutLogging or handled:
                 errprinted = True
-            logger.error(repr(exc))
+            if not handled:
+                logger.error(repr(exc))
             event.fire(TaskFailed(task, fn, logfn, localdata, errprinted), localdata)
         return 1
 
diff --git a/poky/bitbake/lib/bb/cache.py b/poky/bitbake/lib/bb/cache.py
index 4e08c10..fcb1579 100644
--- a/poky/bitbake/lib/bb/cache.py
+++ b/poky/bitbake/lib/bb/cache.py
@@ -284,36 +284,15 @@
     Parse a recipe
     """
 
-    chdir_back = False
-
     bb_data.setVar("__BBMULTICONFIG", mc)
 
-    # expand tmpdir to include this topdir
-    bb_data.setVar('TMPDIR', bb_data.getVar('TMPDIR') or "")
     bbfile_loc = os.path.abspath(os.path.dirname(bbfile))
-    oldpath = os.path.abspath(os.getcwd())
     bb.parse.cached_mtime_noerror(bbfile_loc)
 
-    # The ConfHandler first looks if there is a TOPDIR and if not
-    # then it would call getcwd().
-    # Previously, we chdir()ed to bbfile_loc, called the handler
-    # and finally chdir()ed back, a couple of thousand times. We now
-    # just fill in TOPDIR to point to bbfile_loc if there is no TOPDIR yet.
-    if not bb_data.getVar('TOPDIR', False):
-        chdir_back = True
-        bb_data.setVar('TOPDIR', bbfile_loc)
-    try:
-        if appends:
-            bb_data.setVar('__BBAPPEND', " ".join(appends))
-        bb_data = bb.parse.handle(bbfile, bb_data)
-        if chdir_back:
-            os.chdir(oldpath)
-        return bb_data
-    except:
-        if chdir_back:
-            os.chdir(oldpath)
-        raise
-
+    if appends:
+        bb_data.setVar('__BBAPPEND', " ".join(appends))
+    bb_data = bb.parse.handle(bbfile, bb_data)
+    return bb_data
 
 
 class NoCache(object):
diff --git a/poky/bitbake/lib/bb/checksum.py b/poky/bitbake/lib/bb/checksum.py
index 1d50a26..fb8a77f 100644
--- a/poky/bitbake/lib/bb/checksum.py
+++ b/poky/bitbake/lib/bb/checksum.py
@@ -50,6 +50,7 @@
         MultiProcessCache.__init__(self)
 
     def get_checksum(self, f):
+        f = os.path.normpath(f)
         entry = self.cachedata[0].get(f)
         cmtime = self.mtime_cache.cached_mtime(f)
         if entry:
@@ -84,15 +85,24 @@
                 return None
             return checksum
 
+        #
+        # Changing the format of file-checksums is problematic as both OE and Bitbake have
+        # knowledge of them. We need to encode a new piece of data, the portion of the path
+        # we care about from a checksum perspective. This means that files that change subdirectory
+        # are tracked by the task hashes. To do this, we do something horrible and put a "/./" into
+        # the path. The filesystem handles it but it gives us a marker to know which subsection
+        # of the path to cache.
+        #
         def checksum_dir(pth):
             # Handle directories recursively
             if pth == "/":
                 bb.fatal("Refusing to checksum /")
+            pth = pth.rstrip("/")
             dirchecksums = []
             for root, dirs, files in os.walk(pth, topdown=True):
                 [dirs.remove(d) for d in list(dirs) if d in localdirsexclude]
                 for name in files:
-                    fullpth = os.path.join(root, name)
+                    fullpth = os.path.join(root, name).replace(pth, os.path.join(pth, "."))
                     checksum = checksum_file(fullpth)
                     if checksum:
                         dirchecksums.append((fullpth, checksum))
diff --git a/poky/bitbake/lib/bb/cooker.py b/poky/bitbake/lib/bb/cooker.py
index af794b4..08e45e7 100644
--- a/poky/bitbake/lib/bb/cooker.py
+++ b/poky/bitbake/lib/bb/cooker.py
@@ -388,12 +388,22 @@
             # Create a new hash server bound to a unix domain socket
             if not self.hashserv:
                 dbfile = (self.data.getVar("PERSISTENT_DIR") or self.data.getVar("CACHE")) + "/hashserv.db"
+                upstream = self.data.getVar("BB_HASHSERVE_UPSTREAM") or None
+                if upstream:
+                    import socket
+                    try:
+                        sock = socket.create_connection(upstream.split(":"), 5)
+                        sock.close()
+                    except socket.error as e:
+                        bb.warn("BB_HASHSERVE_UPSTREAM is not valid, unable to connect hash equivalence server at '%s': %s" 
+                                 % (upstream, repr(e)))
+
                 self.hashservaddr = "unix://%s/hashserve.sock" % self.data.getVar("TOPDIR")
                 self.hashserv = hashserv.create_server(
                     self.hashservaddr,
                     dbfile,
                     sync=False,
-                    upstream=self.data.getVar("BB_HASHSERVE_UPSTREAM") or None,
+                    upstream=upstream,
                 )
                 self.hashserv.serve_as_process()
             self.data.setVar("BB_HASHSERVE", self.hashservaddr)
@@ -804,7 +814,9 @@
             for dep in rq.rqdata.runtaskentries[tid].depends:
                 (depmc, depfn, _, deptaskfn) = bb.runqueue.split_tid_mcfn(dep)
                 deppn = self.recipecaches[depmc].pkg_fn[deptaskfn]
-                depend_tree["tdepends"][dotname].append("%s.%s" % (deppn, bb.runqueue.taskname_from_tid(dep)))
+                if depmc:
+                    depmc = "mc:" + depmc + ":"
+                depend_tree["tdepends"][dotname].append("%s%s.%s" % (depmc, deppn, bb.runqueue.taskname_from_tid(dep)))
             if taskfn not in seen_fns:
                 seen_fns.append(taskfn)
                 packages = []
@@ -1656,7 +1668,7 @@
         # Return a copy, don't modify the original
         pkgs_to_build = pkgs_to_build[:]
 
-        if len(pkgs_to_build) == 0:
+        if not pkgs_to_build:
             raise NothingToBuild
 
         ignore = (self.data.getVar("ASSUME_PROVIDED") or "").split()
@@ -1795,10 +1807,10 @@
         files.sort( key=lambda fileitem: self.calc_bbfile_priority(fileitem)[0] )
         config.setVar("BBFILES_PRIORITIZED", " ".join(files))
 
-        if not len(files):
+        if not files:
             files = self.get_bbfiles()
 
-        if not len(files):
+        if not files:
             collectlog.error("no recipe files to build, check your BBPATH and BBFILES?")
             bb.event.fire(CookerExit(), eventdata)
 
@@ -2208,21 +2220,33 @@
             yield not cached, mc, infos
 
     def parse_generator(self):
-        while True:
+        empty = False
+        while self.processes or not empty:
+            for process in self.processes.copy():
+                if not process.is_alive():
+                    process.join()
+                    self.processes.remove(process)
+
             if self.parsed >= self.toparse:
                 break
 
             try:
                 result = self.result_queue.get(timeout=0.25)
             except queue.Empty:
+                empty = True
                 pass
             else:
+                empty = False
                 value = result[1]
                 if isinstance(value, BaseException):
                     raise value
                 else:
                     yield result
 
+        if not (self.parsed >= self.toparse):
+            raise bb.parse.ParseError("Not all recipes parsed, parser thread killed/died? Exiting.", None)
+
+
     def parse_next(self):
         result = []
         parsed = None
diff --git a/poky/bitbake/lib/bb/cookerdata.py b/poky/bitbake/lib/bb/cookerdata.py
index ba657c0..397b43d 100644
--- a/poky/bitbake/lib/bb/cookerdata.py
+++ b/poky/bitbake/lib/bb/cookerdata.py
@@ -86,7 +86,7 @@
                 action['msg'] = "Only one target can be used with the --environment option."
             elif self.options.buildfile and len(self.options.pkgs_to_build) > 0:
                 action['msg'] = "No target should be used with the --environment and --buildfile options."
-            elif len(self.options.pkgs_to_build) > 0:
+            elif self.options.pkgs_to_build:
                 action['action'] = ["showEnvironmentTarget", self.options.pkgs_to_build]
             else:
                 action['action'] = ["showEnvironment", self.options.buildfile]
@@ -210,7 +210,7 @@
 
 #
 # We search for a conf/bblayers.conf under an entry in BBPATH or in cwd working
-# up to /. If that fails, we search for a conf/bitbake.conf in BBPATH.
+# up to /. If that fails, bitbake would fall back to cwd.
 #
 
 def findTopdir():
@@ -223,11 +223,8 @@
     layerconf = findConfigFile("bblayers.conf", d)
     if layerconf:
         return os.path.dirname(os.path.dirname(layerconf))
-    if bbpath:
-        bitbakeconf = bb.utils.which(bbpath, "conf/bitbake.conf")
-        if bitbakeconf:
-            return os.path.dirname(os.path.dirname(bitbakeconf))
-    return None
+
+    return os.path.abspath(os.getcwd())
 
 class CookerDataBuilder(object):
 
@@ -417,6 +414,9 @@
                         " invoked bitbake from the wrong directory?")
             raise SystemExit(msg)
 
+        if not data.getVar("TOPDIR"):
+            data.setVar("TOPDIR", os.path.abspath(os.getcwd()))
+
         data = parse_config_file(os.path.join("conf", "bitbake.conf"), data)
 
         # Parse files for loading *after* bitbake.conf and any includes
diff --git a/poky/bitbake/lib/bb/daemonize.py b/poky/bitbake/lib/bb/daemonize.py
index c187fcf..40fabd0 100644
--- a/poky/bitbake/lib/bb/daemonize.py
+++ b/poky/bitbake/lib/bb/daemonize.py
@@ -74,26 +74,26 @@
     with open('/dev/null', 'r') as si:
         os.dup2(si.fileno(), sys.stdin.fileno())
 
-    try:
-        so = open(logfile, 'a+')
-        os.dup2(so.fileno(), sys.stdout.fileno())
-        os.dup2(so.fileno(), sys.stderr.fileno())
-    except io.UnsupportedOperation:
-        sys.stdout = open(logfile, 'a+')
+    with open(logfile, 'a+') as so:
+        try:
+            os.dup2(so.fileno(), sys.stdout.fileno())
+            os.dup2(so.fileno(), sys.stderr.fileno())
+        except io.UnsupportedOperation:
+            sys.stdout = so
 
-    # Have stdout and stderr be the same so log output matches chronologically
-    # and there aren't two seperate buffers
-    sys.stderr = sys.stdout
+        # Have stdout and stderr be the same so log output matches chronologically
+        # and there aren't two seperate buffers
+        sys.stderr = sys.stdout
 
-    try:
-        function()
-    except Exception as e:
-        traceback.print_exc()
-    finally:
-        bb.event.print_ui_queue()
-        # os._exit() doesn't flush open files like os.exit() does. Manually flush
-        # stdout and stderr so that any logging output will be seen, particularly
-        # exception tracebacks.
-        sys.stdout.flush()
-        sys.stderr.flush()
-        os._exit(0)
+        try:
+            function()
+        except Exception as e:
+            traceback.print_exc()
+        finally:
+            bb.event.print_ui_queue()
+            # os._exit() doesn't flush open files like os.exit() does. Manually flush
+            # stdout and stderr so that any logging output will be seen, particularly
+            # exception tracebacks.
+            sys.stdout.flush()
+            sys.stderr.flush()
+            os._exit(0)
diff --git a/poky/bitbake/lib/bb/data.py b/poky/bitbake/lib/bb/data.py
index 9d18b1e..ee5557a 100644
--- a/poky/bitbake/lib/bb/data.py
+++ b/poky/bitbake/lib/bb/data.py
@@ -285,21 +285,19 @@
         vardeps = varflags.get("vardeps")
 
         def handle_contains(value, contains, d):
-            newvalue = ""
+            newvalue = []
+            if value:
+                newvalue.append(str(value))
             for k in sorted(contains):
                 l = (d.getVar(k) or "").split()
                 for item in sorted(contains[k]):
                     for word in item.split():
                         if not word in l:
-                            newvalue += "\n%s{%s} = Unset" % (k, item)
+                            newvalue.append("\n%s{%s} = Unset" % (k, item))
                             break
                     else:
-                        newvalue += "\n%s{%s} = Set" % (k, item)
-            if not newvalue:
-                return value
-            if not value:
-                return newvalue
-            return value + newvalue
+                        newvalue.append("\n%s{%s} = Set" % (k, item))
+            return "".join(newvalue)
 
         def handle_remove(value, deps, removes, d):
             for r in sorted(removes):
@@ -406,7 +404,9 @@
 
         if data is None:
             bb.error("Task %s from %s seems to be empty?!" % (task, fn))
-            data = ''
+            data = []
+        else:
+            data = [data]
 
         gendeps[task] -= whitelist
         newdeps = gendeps[task]
@@ -424,12 +424,12 @@
 
         alldeps = sorted(seen)
         for dep in alldeps:
-            data = data + dep
+            data.append(dep)
             var = lookupcache[dep]
             if var is not None:
-                data = data + str(var)
+                data.append(str(var))
         k = fn + ":" + task
-        basehash[k] = hashlib.sha256(data.encode("utf-8")).hexdigest()
+        basehash[k] = hashlib.sha256("".join(data).encode("utf-8")).hexdigest()
         taskdeps[task] = alldeps
 
     return taskdeps, basehash
diff --git a/poky/bitbake/lib/bb/data_smart.py b/poky/bitbake/lib/bb/data_smart.py
index 8d235da..543372d 100644
--- a/poky/bitbake/lib/bb/data_smart.py
+++ b/poky/bitbake/lib/bb/data_smart.py
@@ -492,7 +492,7 @@
     def setVar(self, var, value, **loginfo):
         #print("var=" + str(var) + "  val=" + str(value))
 
-        if "_append" in var or "_prepend" in var or "_remove" in var:
+        if not var.startswith("__anon_") and ("_append" in var or "_prepend" in var or "_remove" in var):
             info = "%s" % var
             if "filename" in loginfo:
                 info += " file: %s" % loginfo[filename]
@@ -810,7 +810,7 @@
                     expanded_removes[r] = self.expand(r).split()
 
                 parser.removes = set()
-                val = ""
+                val = []
                 for v in __whitespace_split__.split(parser.value):
                     skip = False
                     for r in removes:
@@ -819,8 +819,8 @@
                             skip = True
                     if skip:
                         continue
-                    val = val + v
-                parser.value = val
+                    val.append(v)
+                parser.value = "".join(val)
                 if expand:
                     value = parser.value
 
diff --git a/poky/bitbake/lib/bb/fetch2/README b/poky/bitbake/lib/bb/fetch2/README
new file mode 100644
index 0000000..67b787e
--- /dev/null
+++ b/poky/bitbake/lib/bb/fetch2/README
@@ -0,0 +1,57 @@
+There are expectations of users of the fetcher code. This file attempts to document
+some of the constraints that are present. Some are obvious, some are less so. It is
+documented in the context of how OE uses it but the API calls are generic.
+
+a) network access for sources is only expected to happen in the do_fetch task.
+   This is not enforced or tested but is required so that we can:
+
+   i) audit the sources used (i.e. for license/manifest reasons) 
+   ii) support offline builds with a suitable cache
+   iii) allow work to continue even with downtime upstream
+   iv) allow for changes upstream in incompatible ways
+   v) allow rebuilding of the software in X years time
+
+b) network access is not expected in do_unpack task.
+
+c) you can take DL_DIR and use it as a mirror for offline builds.
+
+d) access to the network is only made when explicitly configured in recipes
+   (e.g. use of AUTOREV, or use of git tags which change revision).
+
+e) fetcher output is deterministic (i.e. if you fetch configuration XXX now it 
+   will match in future exactly in a clean build with a new DL_DIR).
+   One specific pain point example are git tags. They can be replaced and change
+   so the git fetcher has to resolve them with the network. We use git revisions
+   where possible to avoid this and ensure determinism.
+
+f) network access is expected to work with the standard linux proxy variables
+   so that access behind firewalls works (the fetcher sets these in the 
+   environment but only in the do_fetch tasks).
+
+g) access during parsing has to be minimal, a "git ls-remote" for an AUTOREV 
+   git recipe might be ok but you can't expect to checkout a git tree.
+
+h) we need to provide revision information during parsing such that a version
+   for the recipe can be constructed.
+
+i) versions are expected to be able to increase in a way which sorts allowing 
+   package feeds to operate (see PR server required for git revisions to sort).
+
+j) API to query for possible version upgrades of a url is highly desireable to 
+   allow our automated upgrage code to function (it is implied this does always 
+   have network access).
+
+k) Where fixes or changes to behaviour in the fetcher are made, we ask that 
+   test cases are added (run with "bitbake-selftest bb.tests.fetch"). We do 
+   have fairly extensive test coverage of the fetcher as it is the only way
+   to track all of its corner cases, it still doesn't give entire coverage 
+   though sadly.
+   
+l) If using tools during parse time, they will have to be in ASSUME_PROVIDED
+   in OE's context as we can't build git-native, then parse a recipe and use
+   git ls-remote.
+
+Not all fetchers support all features, autorev is optional and doesn't make
+sense for some. Upgrade detection means different things in different contexts
+too.
+
diff --git a/poky/bitbake/lib/bb/fetch2/__init__.py b/poky/bitbake/lib/bb/fetch2/__init__.py
index 666cc13..d371741 100644
--- a/poky/bitbake/lib/bb/fetch2/__init__.py
+++ b/poky/bitbake/lib/bb/fetch2/__init__.py
@@ -402,24 +402,24 @@
 
     if not type:
         raise MissingParameterError('type', "encoded from the data %s" % str(decoded))
-    url = '%s://' % type
+    url = ['%s://' % type]
     if user and type != "file":
-        url += "%s" % user
+        url.append("%s" % user)
         if pswd:
-            url += ":%s" % pswd
-        url += "@"
+            url.append(":%s" % pswd)
+        url.append("@")
     if host and type != "file":
-        url += "%s" % host
+        url.append("%s" % host)
     if path:
         # Standardise path to ensure comparisons work
         while '//' in path:
             path = path.replace("//", "/")
-        url += "%s" % urllib.parse.quote(path)
+        url.append("%s" % urllib.parse.quote(path))
     if p:
         for parm in p:
-            url += ";%s=%s" % (parm, p[parm])
+            url.append(";%s=%s" % (parm, p[parm]))
 
-    return url
+    return "".join(url)
 
 def uri_replace(ud, uri_find, uri_replace, replacements, d, mirrortarball=None):
     if not ud.url or not uri_find or not uri_replace:
@@ -430,6 +430,7 @@
     uri_replace_decoded = list(decodeurl(uri_replace))
     logger.debug2("For url %s comparing %s to %s" % (uri_decoded, uri_find_decoded, uri_replace_decoded))
     result_decoded = ['', '', '', '', '', {}]
+    # 0 - type, 1 - host, 2 - path, 3 - user,  4- pswd, 5 - params
     for loc, i in enumerate(uri_find_decoded):
         result_decoded[loc] = uri_decoded[loc]
         regexp = i
@@ -449,6 +450,9 @@
                 for l in replacements:
                     uri_replace_decoded[loc][k] = uri_replace_decoded[loc][k].replace(l, replacements[l])
                 result_decoded[loc][k] = uri_replace_decoded[loc][k]
+        elif (loc == 3 or loc == 4) and uri_replace_decoded[loc]:
+            # User/password in the replacement is just a straight replacement
+            result_decoded[loc] = uri_replace_decoded[loc]
         elif (re.match(regexp, uri_decoded[loc])):
             if not uri_replace_decoded[loc]:
                 result_decoded[loc] = ""
@@ -466,9 +470,13 @@
                     # Kill parameters, they make no sense for mirror tarballs
                     uri_decoded[5] = {}
                 elif ud.localpath and ud.method.supports_checksum(ud):
-                    basename = os.path.basename(uri_decoded[loc])
-                if basename and not result_decoded[loc].endswith(basename):
-                    result_decoded[loc] = os.path.join(result_decoded[loc], basename)
+                    basename = os.path.basename(ud.localpath)
+                if basename:
+                    uri_basename = os.path.basename(uri_decoded[loc])
+                    if uri_basename and basename != uri_basename and result_decoded[loc].endswith(uri_basename):
+                        result_decoded[loc] = result_decoded[loc].replace(uri_basename, basename)
+                    elif not result_decoded[loc].endswith(basename):
+                        result_decoded[loc] = os.path.join(result_decoded[loc], basename)
         else:
             return None
     result = encodeurl(result_decoded)
@@ -766,7 +774,7 @@
         if urldata[u].method.supports_srcrev():
             scms.append(u)
 
-    if len(scms) == 0:
+    if not scms:
         raise FetchError("SRCREV was used yet no valid SCM was found in SRC_URI")
 
     if len(scms) == 1 and len(urldata[scms[0]].names) == 1:
@@ -1450,30 +1458,33 @@
         cmd = None
 
         if unpack:
+            tar_cmd = 'tar --extract --no-same-owner'
+            if 'striplevel' in urldata.parm:
+                tar_cmd += ' --strip-components=%s' %  urldata.parm['striplevel']
             if file.endswith('.tar'):
-                cmd = 'tar x --no-same-owner -f %s' % file
+                cmd = '%s -f %s' % (tar_cmd, file)
             elif file.endswith('.tgz') or file.endswith('.tar.gz') or file.endswith('.tar.Z'):
-                cmd = 'tar xz --no-same-owner -f %s' % file
+                cmd = '%s -z -f %s' % (tar_cmd, file)
             elif file.endswith('.tbz') or file.endswith('.tbz2') or file.endswith('.tar.bz2'):
-                cmd = 'bzip2 -dc %s | tar x --no-same-owner -f -' % file
+                cmd = 'bzip2 -dc %s | %s -f -' % (file, tar_cmd)
             elif file.endswith('.gz') or file.endswith('.Z') or file.endswith('.z'):
                 cmd = 'gzip -dc %s > %s' % (file, efile)
             elif file.endswith('.bz2'):
                 cmd = 'bzip2 -dc %s > %s' % (file, efile)
             elif file.endswith('.txz') or file.endswith('.tar.xz'):
-                cmd = 'xz -dc %s | tar x --no-same-owner -f -' % file
+                cmd = 'xz -dc %s | %s -f -' % (file, tar_cmd)
             elif file.endswith('.xz'):
                 cmd = 'xz -dc %s > %s' % (file, efile)
             elif file.endswith('.tar.lz'):
-                cmd = 'lzip -dc %s | tar x --no-same-owner -f -' % file
+                cmd = 'lzip -dc %s | %s -f -' % (file, tar_cmd)
             elif file.endswith('.lz'):
                 cmd = 'lzip -dc %s > %s' % (file, efile)
             elif file.endswith('.tar.7z'):
-                cmd = '7z x -so %s | tar x --no-same-owner -f -' % file
+                cmd = '7z x -so %s | %s -f -' % (file, tar_cmd)
             elif file.endswith('.7z'):
                 cmd = '7za x -y %s 1>/dev/null' % file
             elif file.endswith('.tzst') or file.endswith('.tar.zst'):
-                cmd = 'zstd --decompress --stdout %s | tar x --no-same-owner -f -' % file
+                cmd = 'zstd --decompress --stdout %s | %s -f -' % (file, tar_cmd)
             elif file.endswith('.zst'):
                 cmd = 'zstd --decompress --stdout %s > %s' % (file, efile)
             elif file.endswith('.zip') or file.endswith('.jar'):
@@ -1506,7 +1517,7 @@
                         raise UnpackError("Unable to unpack deb/ipk package - does not contain data.tar.* file", urldata.url)
                 else:
                     raise UnpackError("Unable to unpack deb/ipk package - could not list contents", urldata.url)
-                cmd = 'ar x %s %s && tar --no-same-owner -xpf %s && rm %s' % (file, datafile, datafile, datafile)
+                cmd = 'ar x %s %s && %s -p -f %s && rm %s' % (file, datafile, tar_cmd, datafile, datafile)
 
         # If 'subdir' param exists, create a dir and use it as destination for unpack cmd
         if 'subdir' in urldata.parm:
@@ -1632,7 +1643,7 @@
         if localonly and cache:
             raise Exception("bb.fetch2.Fetch.__init__: cannot set cache and localonly at same time")
 
-        if len(urls) == 0:
+        if not urls:
             urls = d.getVar("SRC_URI").split()
         self.urls = urls
         self.d = d
@@ -1931,6 +1942,7 @@
 from . import npm
 from . import npmsw
 from . import az
+from . import crate
 
 methods.append(local.Local())
 methods.append(wget.Wget())
@@ -1951,3 +1963,4 @@
 methods.append(npm.Npm())
 methods.append(npmsw.NpmShrinkWrap())
 methods.append(az.Az())
+methods.append(crate.Crate())
diff --git a/poky/bitbake/lib/bb/fetch2/crate.py b/poky/bitbake/lib/bb/fetch2/crate.py
new file mode 100644
index 0000000..f7e2354
--- /dev/null
+++ b/poky/bitbake/lib/bb/fetch2/crate.py
@@ -0,0 +1,137 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for crates.io
+"""
+
+# Copyright (C) 2016 Doug Goldstein
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import hashlib
+import json
+import os
+import shutil
+import subprocess
+import bb
+from   bb.fetch2 import logger, subprocess_setup, UnpackError
+from   bb.fetch2.wget import Wget
+
+
+class Crate(Wget):
+
+    """Class to fetch crates via wget"""
+
+    def _cargo_bitbake_path(self, rootdir):
+        return os.path.join(rootdir, "cargo_home", "bitbake")
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url is for this fetcher
+        """
+        return ud.type in ['crate']
+
+    def recommends_checksum(self, urldata):
+        return False
+
+    def urldata_init(self, ud, d):
+        """
+        Sets up to download the respective crate from crates.io
+        """
+
+        if ud.type == 'crate':
+            self._crate_urldata_init(ud, d)
+
+        super(Crate, self).urldata_init(ud, d)
+
+    def _crate_urldata_init(self, ud, d):
+        """
+        Sets up the download for a crate
+        """
+
+        # URL syntax is: crate://NAME/VERSION
+        # break the URL apart by /
+        parts = ud.url.split('/')
+        if len(parts) < 5:
+            raise bb.fetch2.ParameterError("Invalid URL: Must be crate://HOST/NAME/VERSION", ud.url)
+
+        # last field is version
+        version = parts[len(parts) - 1]
+        # second to last field is name
+        name = parts[len(parts) - 2]
+        # host (this is to allow custom crate registries to be specified
+        host = '/'.join(parts[2:len(parts) - 2])
+
+        # if using upstream just fix it up nicely
+        if host == 'crates.io':
+            host = 'crates.io/api/v1/crates'
+
+        ud.url = "https://%s/%s/%s/download" % (host, name, version)
+        ud.parm['downloadfilename'] = "%s-%s.crate" % (name, version)
+        ud.parm['name'] = name
+
+        logger.debug(2, "Fetching %s to %s" % (ud.url, ud.parm['downloadfilename']))
+
+    def unpack(self, ud, rootdir, d):
+        """
+        Uses the crate to build the necessary paths for cargo to utilize it
+        """
+        if ud.type == 'crate':
+            return self._crate_unpack(ud, rootdir, d)
+        else:
+            super(Crate, self).unpack(ud, rootdir, d)
+
+    def _crate_unpack(self, ud, rootdir, d):
+        """
+        Unpacks a crate
+        """
+        thefile = ud.localpath
+
+        # possible metadata we need to write out
+        metadata = {}
+
+        # change to the rootdir to unpack but save the old working dir
+        save_cwd = os.getcwd()
+        os.chdir(rootdir)
+
+        pn = d.getVar('BPN')
+        if pn == ud.parm.get('name'):
+            cmd = "tar -xz --no-same-owner -f %s" % thefile
+        else:
+            cargo_bitbake = self._cargo_bitbake_path(rootdir)
+
+            cmd = "tar -xz --no-same-owner -f %s -C %s" % (thefile, cargo_bitbake)
+
+            # ensure we've got these paths made
+            bb.utils.mkdirhier(cargo_bitbake)
+
+            # generate metadata necessary
+            with open(thefile, 'rb') as f:
+                # get the SHA256 of the original tarball
+                tarhash = hashlib.sha256(f.read()).hexdigest()
+
+            metadata['files'] = {}
+            metadata['package'] = tarhash
+
+        path = d.getVar('PATH')
+        if path:
+            cmd = "PATH=\"%s\" %s" % (path, cmd)
+        bb.note("Unpacking %s to %s/" % (thefile, os.getcwd()))
+
+        ret = subprocess.call(cmd, preexec_fn=subprocess_setup, shell=True)
+
+        os.chdir(save_cwd)
+
+        if ret != 0:
+            raise UnpackError("Unpack command %s failed with return value %s" % (cmd, ret), ud.url)
+
+        # if we have metadata to write out..
+        if len(metadata) > 0:
+            cratepath = os.path.splitext(os.path.basename(thefile))[0]
+            bbpath = self._cargo_bitbake_path(rootdir)
+            mdfile = '.cargo-checksum.json'
+            mdpath = os.path.join(bbpath, cratepath, mdfile)
+            with open(mdpath, "w") as f:
+                json.dump(metadata, f)
diff --git a/poky/bitbake/lib/bb/fetch2/git.py b/poky/bitbake/lib/bb/fetch2/git.py
index e8ddf2c..30da8e9 100644
--- a/poky/bitbake/lib/bb/fetch2/git.py
+++ b/poky/bitbake/lib/bb/fetch2/git.py
@@ -142,6 +142,11 @@
             ud.proto = 'file'
         else:
             ud.proto = "git"
+        if ud.host == "github.com" and ud.proto == "git":
+            # github stopped supporting git protocol
+            # https://github.blog/2021-09-01-improving-git-protocol-security-github/#no-more-unauthenticated-git
+            ud.proto = "https"
+            bb.warn("URL: %s uses git protocol which is no longer supported by github. Please change to ;protocol=https in the url." % ud.url)
 
         if not ud.proto in ('git', 'file', 'ssh', 'http', 'https', 'rsync'):
             raise bb.fetch2.ParameterError("Invalid protocol type", ud.url)
@@ -165,7 +170,10 @@
             ud.nocheckout = 1
   
         ud.unresolvedrev = {}
-        branches = ud.parm.get("branch", "master").split(',')
+        branches = ud.parm.get("branch", "").split(',')
+        if branches == [""] and not ud.nobranch:
+            bb.warn("URL: %s does not set any branch parameter. The future default branch used by tools and repositories is uncertain and we will therefore soon require this is set in all git urls." % ud.url)
+            branches = ["master"]
         if len(branches) != len(ud.names):
             raise bb.fetch2.ParameterError("The number of name and branch parameters is not balanced", ud.url)
 
@@ -516,13 +524,24 @@
     def unpack(self, ud, destdir, d):
         """ unpack the downloaded src to destdir"""
 
-        subdir = ud.parm.get("subpath", "")
-        if subdir != "":
-            readpathspec = ":%s" % subdir
-            def_destsuffix = "%s/" % os.path.basename(subdir.rstrip('/'))
-        else:
-            readpathspec = ""
-            def_destsuffix = "git/"
+        subdir = ud.parm.get("subdir")
+        subpath = ud.parm.get("subpath")
+        readpathspec = ""
+        def_destsuffix = "git/"
+
+        if subpath:
+            readpathspec = ":%s" % subpath
+            def_destsuffix = "%s/" % os.path.basename(subpath.rstrip('/'))
+
+        if subdir:
+            # If 'subdir' param exists, create a dir and use it as destination for unpack cmd
+            if os.path.isabs(subdir):
+                if not os.path.realpath(subdir).startswith(os.path.realpath(destdir)):
+                    raise bb.fetch2.UnpackError("subdir argument isn't a subdirectory of unpack root %s" % destdir, ud.url)
+                destdir = subdir
+            else:
+                destdir = os.path.join(destdir, subdir)
+            def_destsuffix = ""
 
         destsuffix = ud.parm.get("destsuffix", def_destsuffix)
         destdir = ud.destdir = os.path.join(destdir, destsuffix)
@@ -569,7 +588,7 @@
                 bb.note("Repository %s has LFS content but it is not being fetched" % (repourl))
 
         if not ud.nocheckout:
-            if subdir != "":
+            if subpath:
                 runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.revisions[ud.names[0]], readpathspec), d,
                             workdir=destdir)
                 runfetchcmd("%s checkout-index -q -f -a" % ud.basecmd, d, workdir=destdir)
diff --git a/poky/bitbake/lib/bb/fetch2/gitsm.py b/poky/bitbake/lib/bb/fetch2/gitsm.py
index a7110a9..c5c23d5 100644
--- a/poky/bitbake/lib/bb/fetch2/gitsm.py
+++ b/poky/bitbake/lib/bb/fetch2/gitsm.py
@@ -163,7 +163,7 @@
         else:
             self.process_submodules(ud, ud.clonedir, need_update_submodule, d)
 
-        if len(need_update_list) > 0:
+        if need_update_list:
             logger.debug('gitsm: Submodules requiring update: %s' % (' '.join(need_update_list)))
             return True
 
diff --git a/poky/bitbake/lib/bb/fetch2/npm.py b/poky/bitbake/lib/bb/fetch2/npm.py
index 3c41cb2..b3a3a44 100644
--- a/poky/bitbake/lib/bb/fetch2/npm.py
+++ b/poky/bitbake/lib/bb/fetch2/npm.py
@@ -72,7 +72,7 @@
     cmd += " --delay-directory-restore"
     cmd += " --strip-components=1"
     runfetchcmd(cmd, d, workdir=destdir)
-    runfetchcmd("chmod -R +X %s" % (destdir), d, quiet=True, workdir=destdir)
+    runfetchcmd("chmod -R +X '%s'" % (destdir), d, quiet=True, workdir=destdir)
 
 class NpmEnvironment(object):
     """
diff --git a/poky/bitbake/lib/bb/fetch2/npmsw.py b/poky/bitbake/lib/bb/fetch2/npmsw.py
index 426a139..879ba5d 100644
--- a/poky/bitbake/lib/bb/fetch2/npmsw.py
+++ b/poky/bitbake/lib/bb/fetch2/npmsw.py
@@ -88,7 +88,11 @@
             version = params.get("version", None)
 
             # Handle registry sources
-            if is_semver(version) and resolved and integrity:
+            if is_semver(version) and integrity:
+                # Handle duplicate dependencies without url
+                if not resolved:
+                    return
+
                 localfile = npm_localfile(name, version)
 
                 uri = URI(resolved)
@@ -127,6 +131,8 @@
 
             # Handle git sources
             elif version.startswith("git"):
+                if version.startswith("github:"):
+                    version = "git+https://github.com/" + version[len("github:"):]
                 regex = re.compile(r"""
                     ^
                     git\+
diff --git a/poky/bitbake/lib/bb/fetch2/wget.py b/poky/bitbake/lib/bb/fetch2/wget.py
index 349891e..253cabc 100644
--- a/poky/bitbake/lib/bb/fetch2/wget.py
+++ b/poky/bitbake/lib/bb/fetch2/wget.py
@@ -112,7 +112,17 @@
             fetchcmd += " -O %s" % shlex.quote(localpath)
 
         if ud.user and ud.pswd:
-            fetchcmd += " --user=%s --password=%s --auth-no-challenge" % (ud.user, ud.pswd)
+            fetchcmd += " --auth-no-challenge"
+            if ud.parm.get("redirectauth", "1") == "1":
+                # An undocumented feature of wget is that if the
+                # username/password are specified on the URI, wget will only
+                # send the Authorization header to the first host and not to
+                # any hosts that it is redirected to.  With the increasing
+                # usage of temporary AWS URLs, this difference now matters as
+                # AWS will reject any request that has authentication both in
+                # the query parameters (from the redirect) and in the
+                # Authorization header.
+                fetchcmd += " --user=%s --password=%s" % (ud.user, ud.pswd)
 
         uri = ud.url.split(";")[0]
         if os.path.exists(ud.localpath):
@@ -356,7 +366,7 @@
                 except (TypeError, ImportError, IOError, netrc.NetrcParseError):
                     pass
 
-                with opener.open(r) as response:
+                with opener.open(r, timeout=30) as response:
                     pass
             except urllib.error.URLError as e:
                 if try_again:
@@ -583,7 +593,7 @@
 
         # src.rpm extension was added only for rpm package. Can be removed if the rpm
         # packaged will always be considered as having to be manually upgraded
-        psuffix_regex = r"(tar\.gz|tgz|tar\.bz2|zip|xz|tar\.lz|rpm|bz2|orig\.tar\.gz|tar\.xz|src\.tar\.gz|src\.tgz|svnr\d+\.tar\.bz2|stable\.tar\.gz|src\.rpm)"
+        psuffix_regex = r"(tar\.\w+|tgz|zip|xz|rpm|bz2|orig\.tar\.\w+|src\.tar\.\w+|src\.tgz|svnr\d+\.tar\.\w+|stable\.tar\.\w+|src\.rpm)"
 
         # match name, version and archive type of a package
         package_regex_comp = re.compile(r"(?P<name>%s?\.?v?)(?P<pver>%s)(?P<arch>%s)?[\.-](?P<type>%s$)"
diff --git a/poky/bitbake/lib/bb/parse/ast.py b/poky/bitbake/lib/bb/parse/ast.py
index 743ea0d..31bcc8e 100644
--- a/poky/bitbake/lib/bb/parse/ast.py
+++ b/poky/bitbake/lib/bb/parse/ast.py
@@ -130,6 +130,10 @@
         else:
             val = groupd["value"]
 
+        if ":append" in key or ":remove" in key or ":prepend" in key:
+            if op in ["append", "prepend", "postdot", "predot", "ques"]:
+                bb.warn(key + " " + groupd[op] + " is not a recommended operator combination, please replace it.")
+
         flag = None
         if 'flag' in groupd and groupd['flag'] is not None:
             flag = groupd['flag']
diff --git a/poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py
index 0834fe3..b895d5b 100644
--- a/poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py
+++ b/poky/bitbake/lib/bb/parse/parse_py/ConfHandler.py
@@ -48,10 +48,7 @@
 __unset_flag_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/~]+)\[([a-zA-Z0-9\-_+.]+)\]$" )
 
 def init(data):
-    topdir = data.getVar('TOPDIR', False)
-    if not topdir:
-        data.setVar('TOPDIR', os.getcwd())
-
+    return
 
 def supports(fn, d):
     return fn[-5:] == ".conf"
diff --git a/poky/bitbake/lib/bb/process.py b/poky/bitbake/lib/bb/process.py
index d5a1775..af5d804 100644
--- a/poky/bitbake/lib/bb/process.py
+++ b/poky/bitbake/lib/bb/process.py
@@ -60,7 +60,7 @@
         "close_fds": True,
         "preexec_fn": subprocess_setup,
         "stdout": subprocess.PIPE,
-        "stderr": subprocess.STDOUT,
+        "stderr": subprocess.PIPE,
         "stdin": subprocess.PIPE,
         "shell": False,
     }
diff --git a/poky/bitbake/lib/bb/runqueue.py b/poky/bitbake/lib/bb/runqueue.py
index 10511a0..8ae3fe8 100644
--- a/poky/bitbake/lib/bb/runqueue.py
+++ b/poky/bitbake/lib/bb/runqueue.py
@@ -385,7 +385,6 @@
         self.rq = rq
         self.warn_multi_bb = False
 
-        self.stampwhitelist = cfgData.getVar("BB_STAMP_WHITELIST") or ""
         self.multi_provider_whitelist = (cfgData.getVar("MULTI_PROVIDER_WHITELIST") or "").split()
         self.setscenewhitelist = get_setscene_enforce_whitelist(cfgData, targets)
         self.setscenewhitelist_checked = False
@@ -547,7 +546,7 @@
                         next_points.append(revdep)
                         task_done[revdep] = True
             endpoints = next_points
-            if len(next_points) == 0:
+            if not next_points:
                 break
 
         # Circular dependency sanity check
@@ -589,7 +588,7 @@
 
         found = False
         for mc in self.taskData:
-            if len(taskData[mc].taskentries) > 0:
+            if taskData[mc].taskentries:
                 found = True
                 break
         if not found:
@@ -773,7 +772,7 @@
         # Find the dependency chain endpoints
         endpoints = set()
         for tid in self.runtaskentries:
-            if len(deps[tid]) == 0:
+            if not deps[tid]:
                 endpoints.add(tid)
         # Iterate the chains collating dependencies
         while endpoints:
@@ -784,11 +783,11 @@
                     cumulativedeps[dep].update(cumulativedeps[tid])
                     if tid in deps[dep]:
                         deps[dep].remove(tid)
-                    if len(deps[dep]) == 0:
+                    if not deps[dep]:
                         next.add(dep)
             endpoints = next
         #for tid in deps:
-        #    if len(deps[tid]) != 0:
+        #    if deps[tid]:
         #        bb.warn("Sanity test failure, dependencies left for %s (%s)" % (tid, deps[tid]))
 
         # Loop here since recrdeptasks can depend upon other recrdeptasks and we have to
@@ -926,39 +925,37 @@
         #
         # Once all active tasks are marked, prune the ones we don't need.
 
-        delcount = {}
-        for tid in list(self.runtaskentries.keys()):
-            if tid not in runq_build:
-                delcount[tid] = self.runtaskentries[tid]
-                del self.runtaskentries[tid]
-
         # Handle --runall
         if self.cooker.configuration.runall:
             # re-run the mark_active and then drop unused tasks from new list
+            reduced_tasklist = set(self.runtaskentries.keys())
+            for tid in list(self.runtaskentries.keys()):
+                if tid not in runq_build:
+                   reduced_tasklist.remove(tid)
             runq_build = {}
 
             for task in self.cooker.configuration.runall:
                 if not task.startswith("do_"):
                     task = "do_{0}".format(task)
                 runall_tids = set()
-                for tid in list(self.runtaskentries):
+                for tid in reduced_tasklist:
                     wanttid = "{0}:{1}".format(fn_from_tid(tid), task)
-                    if wanttid in delcount:
-                        self.runtaskentries[wanttid] = delcount[wanttid]
                     if wanttid in self.runtaskentries:
                         runall_tids.add(wanttid)
 
                 for tid in list(runall_tids):
-                    mark_active(tid,1)
+                    mark_active(tid, 1)
                     if self.cooker.configuration.force:
                         invalidate_task(tid, False)
 
-            for tid in list(self.runtaskentries.keys()):
-                if tid not in runq_build:
-                    delcount[tid] = self.runtaskentries[tid]
-                    del self.runtaskentries[tid]
+        delcount = set()
+        for tid in list(self.runtaskentries.keys()):
+            if tid not in runq_build:
+                delcount.add(tid)
+                del self.runtaskentries[tid]
 
-            if len(self.runtaskentries) == 0:
+        if self.cooker.configuration.runall:
+            if not self.runtaskentries:
                 bb.msg.fatal("RunQueue", "Could not find any tasks with the tasknames %s to run within the recipes of the taskgraphs of the targets %s" % (str(self.cooker.configuration.runall), str(self.targets)))
 
         self.init_progress_reporter.next_stage()
@@ -971,19 +968,19 @@
             for task in self.cooker.configuration.runonly:
                 if not task.startswith("do_"):
                     task = "do_{0}".format(task)
-                runonly_tids = { k: v for k, v in self.runtaskentries.items() if taskname_from_tid(k) == task }
+                runonly_tids = [k for k in self.runtaskentries.keys() if taskname_from_tid(k) == task]
 
-                for tid in list(runonly_tids):
-                    mark_active(tid,1)
+                for tid in runonly_tids:
+                    mark_active(tid, 1)
                     if self.cooker.configuration.force:
                         invalidate_task(tid, False)
 
             for tid in list(self.runtaskentries.keys()):
                 if tid not in runq_build:
-                    delcount[tid] = self.runtaskentries[tid]
+                    delcount.add(tid)
                     del self.runtaskentries[tid]
 
-            if len(self.runtaskentries) == 0:
+            if not self.runtaskentries:
                 bb.msg.fatal("RunQueue", "Could not find any tasks with the tasknames %s to run within the taskgraphs of the targets %s" % (str(self.cooker.configuration.runonly), str(self.targets)))
 
         #
@@ -991,7 +988,7 @@
         #
 
         # Check to make sure we still have tasks to run
-        if len(self.runtaskentries) == 0:
+        if not self.runtaskentries:
             if not taskData[''].abort:
                 bb.msg.fatal("RunQueue", "All buildable tasks have been run but the build is incomplete (--continue mode). Errors for the tasks that failed will have been printed above.")
             else:
@@ -1015,7 +1012,7 @@
         endpoints = []
         for tid in self.runtaskentries:
             revdeps = self.runtaskentries[tid].revdeps
-            if len(revdeps) == 0:
+            if not revdeps:
                 endpoints.append(tid)
             for dep in revdeps:
                 if dep in self.runtaskentries[tid].depends:
@@ -1061,12 +1058,12 @@
                         seen_pn.append(pn)
                     else:
                         bb.fatal("Multiple versions of %s are due to be built (%s). Only one version of a given PN should be built in any given build. You likely need to set PREFERRED_VERSION_%s to select the correct version or don't depend on multiple versions." % (pn, " ".join(prov_list[prov]), pn))
-                msg = "Multiple .bb files are due to be built which each provide %s:\n  %s" % (prov, "\n  ".join(prov_list[prov]))
+                msgs = ["Multiple .bb files are due to be built which each provide %s:\n  %s" % (prov, "\n  ".join(prov_list[prov]))]
                 #
                 # Construct a list of things which uniquely depend on each provider
                 # since this may help the user figure out which dependency is triggering this warning
                 #
-                msg += "\nA list of tasks depending on these providers is shown and may help explain where the dependency comes from."
+                msgs.append("\nA list of tasks depending on these providers is shown and may help explain where the dependency comes from.")
                 deplist = {}
                 commondeps = None
                 for provfn in prov_list[prov]:
@@ -1086,12 +1083,12 @@
                         commondeps &= deps
                     deplist[provfn] = deps
                 for provfn in deplist:
-                    msg += "\n%s has unique dependees:\n  %s" % (provfn, "\n  ".join(deplist[provfn] - commondeps))
+                    msgs.append("\n%s has unique dependees:\n  %s" % (provfn, "\n  ".join(deplist[provfn] - commondeps)))
                 #
                 # Construct a list of provides and runtime providers for each recipe
                 # (rprovides has to cover RPROVIDES, PACKAGES, PACKAGES_DYNAMIC)
                 #
-                msg += "\nIt could be that one recipe provides something the other doesn't and should. The following provider and runtime provider differences may be helpful."
+                msgs.append("\nIt could be that one recipe provides something the other doesn't and should. The following provider and runtime provider differences may be helpful.")
                 provide_results = {}
                 rprovide_results = {}
                 commonprovs = None
@@ -1118,29 +1115,18 @@
                     else:
                         commonrprovs &= rprovides
                     rprovide_results[provfn] = rprovides
-                #msg += "\nCommon provides:\n  %s" % ("\n  ".join(commonprovs))
-                #msg += "\nCommon rprovides:\n  %s" % ("\n  ".join(commonrprovs))
+                #msgs.append("\nCommon provides:\n  %s" % ("\n  ".join(commonprovs)))
+                #msgs.append("\nCommon rprovides:\n  %s" % ("\n  ".join(commonrprovs)))
                 for provfn in prov_list[prov]:
-                    msg += "\n%s has unique provides:\n  %s" % (provfn, "\n  ".join(provide_results[provfn] - commonprovs))
-                    msg += "\n%s has unique rprovides:\n  %s" % (provfn, "\n  ".join(rprovide_results[provfn] - commonrprovs))
+                    msgs.append("\n%s has unique provides:\n  %s" % (provfn, "\n  ".join(provide_results[provfn] - commonprovs)))
+                    msgs.append("\n%s has unique rprovides:\n  %s" % (provfn, "\n  ".join(rprovide_results[provfn] - commonrprovs)))
 
                 if self.warn_multi_bb:
-                    logger.verbnote(msg)
+                    logger.verbnote("".join(msgs))
                 else:
-                    logger.error(msg)
+                    logger.error("".join(msgs))
 
         self.init_progress_reporter.next_stage()
-
-        # Create a whitelist usable by the stamp checks
-        self.stampfnwhitelist = {}
-        for mc in self.taskData:
-            self.stampfnwhitelist[mc] = []
-            for entry in self.stampwhitelist.split():
-                if entry not in self.taskData[mc].build_targets:
-                    continue
-                fn = self.taskData.build_targets[entry][0]
-                self.stampfnwhitelist[mc].append(fn)
-
         self.init_progress_reporter.next_stage()
 
         # Iterate over the task list looking for tasks with a 'setscene' function
@@ -1188,9 +1174,9 @@
         # Iterate over the task list and call into the siggen code
         dealtwith = set()
         todeal = set(self.runtaskentries)
-        while len(todeal) > 0:
+        while todeal:
             for tid in todeal.copy():
-                if len(self.runtaskentries[tid].depends - dealtwith) == 0:
+                if not (self.runtaskentries[tid].depends - dealtwith):
                     dealtwith.add(tid)
                     todeal.remove(tid)
                     self.prepare_task_hash(tid)
@@ -1229,7 +1215,6 @@
         self.cfgData = cfgData
         self.rqdata = RunQueueData(self, cooker, cfgData, dataCaches, taskData, targets)
 
-        self.stamppolicy = cfgData.getVar("BB_STAMP_POLICY") or "perfile"
         self.hashvalidate = cfgData.getVar("BB_HASHCHECK_FUNCTION") or None
         self.depvalidate = cfgData.getVar("BB_SETSCENE_DEPVALID") or None
 
@@ -1358,14 +1343,6 @@
         if taskname is None:
             taskname = tn
 
-        if self.stamppolicy == "perfile":
-            fulldeptree = False
-        else:
-            fulldeptree = True
-            stampwhitelist = []
-            if self.stamppolicy == "whitelist":
-                stampwhitelist = self.rqdata.stampfnwhitelist[mc]
-
         stampfile = bb.build.stampfile(taskname, self.rqdata.dataCaches[mc], taskfn)
 
         # If the stamp is missing, it's not current
@@ -1397,7 +1374,7 @@
                     continue
                 if t3 and t3 > t2:
                     continue
-                if fn == fn2 or (fulldeptree and fn2 not in stampwhitelist):
+                if fn == fn2:
                     if not t2:
                         logger.debug2('Stampfile %s does not exist', stampfile2)
                         iscurrent = False
@@ -1500,10 +1477,10 @@
             self.rqexe = RunQueueExecute(self)
 
             # If we don't have any setscene functions, skip execution
-            if len(self.rqdata.runq_setscene_tids) == 0:
+            if not self.rqdata.runq_setscene_tids:
                 logger.info('No setscene tasks')
                 for tid in self.rqdata.runtaskentries:
-                    if len(self.rqdata.runtaskentries[tid].depends) == 0:
+                    if not self.rqdata.runtaskentries[tid].depends:
                         self.rqexe.setbuildable(tid)
                     self.rqexe.tasks_notcovered.add(tid)
                 self.rqexe.sqdone = True
@@ -1780,7 +1757,7 @@
             bb.fatal("Invalid scheduler '%s'.  Available schedulers: %s" %
                      (self.scheduler, ", ".join(obj.name for obj in schedulers)))
 
-        #if len(self.rqdata.runq_setscene_tids) > 0:
+        #if self.rqdata.runq_setscene_tids:
         self.sqdata = SQData()
         build_scenequeue_data(self.sqdata, self.rqdata, self.rq, self.cooker, self.stampcache, self)
 
@@ -1821,7 +1798,7 @@
                 # worker must have died?
                 pass
 
-        if len(self.failed_tids) != 0:
+        if self.failed_tids:
             self.rq.state = runQueueFailed
             return
 
@@ -1837,7 +1814,7 @@
             self.rq.read_workers()
             return self.rq.active_fds()
 
-        if len(self.failed_tids) != 0:
+        if self.failed_tids:
             self.rq.state = runQueueFailed
             return True
 
@@ -1935,7 +1912,7 @@
         self.stats.taskFailed()
         self.failed_tids.append(task)
 
-        fakeroot_log = ""
+        fakeroot_log = []
         if fakerootlog and os.path.exists(fakerootlog):
             with open(fakerootlog) as fakeroot_log_file:
                 fakeroot_failed = False
@@ -1945,12 +1922,12 @@
                             fakeroot_failed = True
                     if 'doing new pid setup and server start' in line:
                         break
-                    fakeroot_log = line + fakeroot_log
+                    fakeroot_log.append(line)
 
             if not fakeroot_failed:
-                fakeroot_log = None
+                fakeroot_log = []
 
-        bb.event.fire(runQueueTaskFailed(task, self.stats, exitcode, self.rq, fakeroot_log=fakeroot_log), self.cfgData)
+        bb.event.fire(runQueueTaskFailed(task, self.stats, exitcode, self.rq, fakeroot_log=("".join(fakeroot_log) or None)), self.cfgData)
 
         if self.rqdata.taskData[''].abort:
             self.rq.state = runQueueCleanUp
@@ -2001,7 +1978,7 @@
             if x not in self.tasks_scenequeue_done:
                 logger.error("Task %s was never processed by the setscene code" % x)
                 err = True
-            if len(self.rqdata.runtaskentries[x].depends) == 0 and x not in self.runq_buildable:
+            if not self.rqdata.runtaskentries[x].depends and x not in self.runq_buildable:
                 logger.error("Task %s was never marked as buildable by the setscene code" % x)
                 err = True
         return err
@@ -2025,7 +2002,7 @@
             # Find the next setscene to run
             for nexttask in self.sorted_setscene_tids:
                 if nexttask in self.sq_buildable and nexttask not in self.sq_running and self.sqdata.stamps[nexttask] not in self.build_stamps.values():
-                    if nexttask not in self.sqdata.unskippable and len(self.sqdata.sq_revdeps[nexttask]) > 0 and self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
+                    if nexttask not in self.sqdata.unskippable and self.sqdata.sq_revdeps[nexttask] and self.sqdata.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sqdata.sq_revdeps[nexttask]):
                         if nexttask not in self.rqdata.target_tids:
                             logger.debug2("Skipping setscene for task %s" % nexttask)
                             self.sq_task_skip(nexttask)
@@ -2189,7 +2166,7 @@
             if self.can_start_task():
                 return True
 
-        if self.stats.active > 0 or len(self.sq_live) > 0:
+        if self.stats.active > 0 or self.sq_live:
             self.rq.read_workers()
             return self.rq.active_fds()
 
@@ -2201,7 +2178,7 @@
                 self.sq_task_failoutright(tid)
             return True
 
-        if len(self.failed_tids) != 0:
+        if self.failed_tids:
             self.rq.state = runQueueFailed
             return True
 
@@ -2280,7 +2257,7 @@
         covered.intersection_update(self.tasks_scenequeue_done)
 
         for tid in notcovered | covered:
-            if len(self.rqdata.runtaskentries[tid].depends) == 0:
+            if not self.rqdata.runtaskentries[tid].depends:
                 self.setbuildable(tid)
             elif self.rqdata.runtaskentries[tid].depends.issubset(self.runq_complete):
                  self.setbuildable(tid)
@@ -2339,7 +2316,7 @@
         # Now iterate those tasks in dependency order to regenerate their taskhash/unihash
         next = set()
         for p in total:
-            if len(self.rqdata.runtaskentries[p].depends) == 0:
+            if not self.rqdata.runtaskentries[p].depends:
                 next.add(p)
             elif self.rqdata.runtaskentries[p].depends.isdisjoint(total):
                 next.add(p)
@@ -2349,7 +2326,7 @@
             current = next.copy()
             next = set()
             for tid in current:
-                if len(self.rqdata.runtaskentries[p].depends) and not self.rqdata.runtaskentries[tid].depends.isdisjoint(total):
+                if self.rqdata.runtaskentries[p].depends and not self.rqdata.runtaskentries[tid].depends.isdisjoint(total):
                     continue
                 orighash = self.rqdata.runtaskentries[tid].hash
                 dc = bb.parse.siggen.get_data_caches(self.rqdata.dataCaches, mc_from_tid(tid))
@@ -2436,7 +2413,7 @@
             if not harddepfail and self.sqdata.sq_revdeps[tid].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
                 if tid not in self.sq_buildable:
                     self.sq_buildable.add(tid)
-            if len(self.sqdata.sq_revdeps[tid]) == 0:
+            if not self.sqdata.sq_revdeps[tid]:
                 self.sq_buildable.add(tid)
 
             if tid in self.sqdata.outrightfail:
@@ -2608,12 +2585,13 @@
         pn = self.rqdata.dataCaches[mc].pkg_fn[taskfn]
         if not check_setscene_enforce_whitelist(pn, taskname, self.rqdata.setscenewhitelist):
             if tid in self.rqdata.runq_setscene_tids:
-                msg = 'Task %s.%s attempted to execute unexpectedly and should have been setscened' % (pn, taskname)
+                msg = ['Task %s.%s attempted to execute unexpectedly and should have been setscened' % (pn, taskname)]
             else:
-                msg = 'Task %s.%s attempted to execute unexpectedly' % (pn, taskname)
+                msg = ['Task %s.%s attempted to execute unexpectedly' % (pn, taskname)]
             for t in self.scenequeue_notcovered:
-                msg = msg + "\nTask %s, unihash %s, taskhash %s" % (t, self.rqdata.runtaskentries[t].unihash, self.rqdata.runtaskentries[t].hash)
-            logger.error(msg + '\nThis is usually due to missing setscene tasks. Those missing in this build were: %s' % pprint.pformat(self.scenequeue_notcovered))
+                msg.append("\nTask %s, unihash %s, taskhash %s" % (t, self.rqdata.runtaskentries[t].unihash, self.rqdata.runtaskentries[t].hash))
+            msg.append('\nThis is usually due to missing setscene tasks. Those missing in this build were: %s' % pprint.pformat(self.scenequeue_notcovered))
+            logger.error("".join(msg))
             return True
         return False
 
@@ -2652,7 +2630,7 @@
     for tid in rqdata.runtaskentries:
         sq_revdeps[tid] = copy.copy(rqdata.runtaskentries[tid].revdeps)
         sq_revdeps_squash[tid] = set()
-        if (len(sq_revdeps[tid]) == 0) and tid not in rqdata.runq_setscene_tids:
+        if not sq_revdeps[tid] and tid not in rqdata.runq_setscene_tids:
             #bb.warn("Added endpoint %s" % (tid))
             endpoints[tid] = set()
 
@@ -2693,9 +2671,9 @@
                     sq_revdeps[dep].remove(point)
                 if tasks:
                     sq_revdeps_squash[dep] |= tasks
-                if len(sq_revdeps[dep]) == 0 and dep not in rqdata.runq_setscene_tids:
+                if not sq_revdeps[dep] and dep not in rqdata.runq_setscene_tids:
                     newendpoints[dep] = task
-        if len(newendpoints) != 0:
+        if newendpoints:
             process_endpoints(newendpoints)
 
     process_endpoints(endpoints)
@@ -2707,7 +2685,7 @@
     # Take the build endpoints (no revdeps) and find the sstate tasks they depend upon
     new = True
     for tid in rqdata.runtaskentries:
-        if len(rqdata.runtaskentries[tid].revdeps) == 0:
+        if not rqdata.runtaskentries[tid].revdeps:
             sqdata.unskippable.add(tid)
     sqdata.unskippable |= sqrq.cantskip
     while new:
@@ -2716,7 +2694,7 @@
         for tid in sorted(orig, reverse=True):
             if tid in rqdata.runq_setscene_tids:
                 continue
-            if len(rqdata.runtaskentries[tid].depends) == 0:
+            if not rqdata.runtaskentries[tid].depends:
                 # These are tasks which have no setscene tasks in their chain, need to mark as directly buildable
                 sqrq.setbuildable(tid)
             sqdata.unskippable |= rqdata.runtaskentries[tid].depends
@@ -2731,7 +2709,7 @@
     for taskcounter, tid in enumerate(rqdata.runtaskentries):
         if tid in rqdata.runq_setscene_tids:
             pass
-        elif len(sq_revdeps_squash[tid]) != 0:
+        elif sq_revdeps_squash[tid]:
             bb.msg.fatal("RunQueue", "Something went badly wrong during scenequeue generation, aborting. Please report this problem.")
         else:
             del sq_revdeps_squash[tid]
@@ -2796,7 +2774,7 @@
     sqdata.multiconfigs = set()
     for tid in sqdata.sq_revdeps:
         sqdata.multiconfigs.add(mc_from_tid(tid))
-        if len(sqdata.sq_revdeps[tid]) == 0:
+        if not sqdata.sq_revdeps[tid]:
             sqrq.sq_buildable.add(tid)
 
     rqdata.init_progress_reporter.finish()
@@ -3050,7 +3028,7 @@
                 raise
         end = len(self.queue)
         found = True
-        while found and len(self.queue):
+        while found and self.queue:
             found = False
             index = self.queue.find(b"</event>")
             while index != -1 and self.queue.startswith(b"<event>"):
@@ -3088,7 +3066,7 @@
     def close(self):
         while self.read():
             continue
-        if len(self.queue) > 0:
+        if self.queue:
             print("Warning, worker left partial message: %s" % self.queue)
         self.input.close()
 
diff --git a/poky/bitbake/lib/bb/server/process.py b/poky/bitbake/lib/bb/server/process.py
index 8fdcc66..1636616 100644
--- a/poky/bitbake/lib/bb/server/process.py
+++ b/poky/bitbake/lib/bb/server/process.py
@@ -326,10 +326,10 @@
                         if e.errno != errno.ENOENT:
                             raise
 
-                msg = "Delaying shutdown due to active processes which appear to be holding bitbake.lock"
+                msg = ["Delaying shutdown due to active processes which appear to be holding bitbake.lock"]
                 if procs:
-                    msg += ":\n%s" % str(procs.decode("utf-8"))
-                serverlog(msg)
+                    msg.append(":\n%s" % str(procs.decode("utf-8")))
+                serverlog("".join(msg))
 
     def idle_commands(self, delay, fds=None):
         nextsleep = delay
diff --git a/poky/bitbake/lib/bb/siggen.py b/poky/bitbake/lib/bb/siggen.py
index 578ba5d..e0ec736 100644
--- a/poky/bitbake/lib/bb/siggen.py
+++ b/poky/bitbake/lib/bb/siggen.py
@@ -328,6 +328,8 @@
 
         for (f, cs) in self.file_checksum_values[tid]:
             if cs:
+                if "/./" in f:
+                    data = data + "./" + f.split("/./")[1]
                 data = data + cs
 
         if tid in self.taints:
@@ -385,7 +387,12 @@
 
         if runtime and tid in self.taskhash:
             data['runtaskdeps'] = self.runtaskdeps[tid]
-            data['file_checksum_values'] = [(os.path.basename(f), cs) for f,cs in self.file_checksum_values[tid]]
+            data['file_checksum_values'] = []
+            for f,cs in self.file_checksum_values[tid]:
+                if "/./" in f:
+                    data['file_checksum_values'].append(("./" + f.split("/./")[1], cs))
+                else:
+                    data['file_checksum_values'].append((os.path.basename(f), cs))
             data['runtaskhashes'] = {}
             for dep in data['runtaskdeps']:
                 data['runtaskhashes'][dep] = self.get_unihash(dep)
@@ -1028,6 +1035,8 @@
 
     for c in sigdata['file_checksum_values']:
         if c[1]:
+            if "./" in c[0]:
+                data = data + c[0]
             data = data + c[1]
 
     if 'taint' in sigdata:
@@ -1045,28 +1054,28 @@
     with bb.compress.zstd.open(a, "rt", encoding="utf-8", num_threads=1) as f:
         a_data = json.load(f, object_hook=SetDecoder)
 
-    output.append("basewhitelist: %s" % (a_data['basewhitelist']))
+    output.append("basewhitelist: %s" % (sorted(a_data['basewhitelist'])))
 
-    output.append("taskwhitelist: %s" % (a_data['taskwhitelist']))
+    output.append("taskwhitelist: %s" % (sorted(a_data['taskwhitelist'] or [])))
 
     output.append("Task dependencies: %s" % (sorted(a_data['taskdeps'])))
 
     output.append("basehash: %s" % (a_data['basehash']))
 
-    for dep in a_data['gendeps']:
-        output.append("List of dependencies for variable %s is %s" % (dep, a_data['gendeps'][dep]))
+    for dep in sorted(a_data['gendeps']):
+        output.append("List of dependencies for variable %s is %s" % (dep, sorted(a_data['gendeps'][dep])))
 
-    for dep in a_data['varvals']:
+    for dep in sorted(a_data['varvals']):
         output.append("Variable %s value is %s" % (dep, a_data['varvals'][dep]))
 
     if 'runtaskdeps' in a_data:
-        output.append("Tasks this task depends on: %s" % (a_data['runtaskdeps']))
+        output.append("Tasks this task depends on: %s" % (sorted(a_data['runtaskdeps'])))
 
     if 'file_checksum_values' in a_data:
-        output.append("This task depends on the checksums of files: %s" % (a_data['file_checksum_values']))
+        output.append("This task depends on the checksums of files: %s" % (sorted(a_data['file_checksum_values'])))
 
     if 'runtaskhashes' in a_data:
-        for dep in a_data['runtaskhashes']:
+        for dep in sorted(a_data['runtaskhashes']):
             output.append("Hash for dependent task %s is %s" % (dep, a_data['runtaskhashes'][dep]))
 
     if 'taint' in a_data:
diff --git a/poky/bitbake/lib/bb/taskdata.py b/poky/bitbake/lib/bb/taskdata.py
index 47bad6d..7bfcdb8 100644
--- a/poky/bitbake/lib/bb/taskdata.py
+++ b/poky/bitbake/lib/bb/taskdata.py
@@ -451,12 +451,12 @@
         for target in self.build_targets:
             if fn in self.build_targets[target]:
                 self.build_targets[target].remove(fn)
-                if len(self.build_targets[target]) == 0:
+                if not self.build_targets[target]:
                     self.remove_buildtarget(target, missing_list)
         for target in self.run_targets:
             if fn in self.run_targets[target]:
                 self.run_targets[target].remove(fn)
-                if len(self.run_targets[target]) == 0:
+                if not self.run_targets[target]:
                     self.remove_runtarget(target, missing_list)
 
     def remove_buildtarget(self, target, missing_list=None):
diff --git a/poky/bitbake/lib/bb/tests/fetch-testdata/debian/pool/main/m/minicom/index.html b/poky/bitbake/lib/bb/tests/fetch-testdata/debian/pool/main/m/minicom/index.html
new file mode 100644
index 0000000..4a1eb4d
--- /dev/null
+++ b/poky/bitbake/lib/bb/tests/fetch-testdata/debian/pool/main/m/minicom/index.html
@@ -0,0 +1,59 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<html>
+ <head>
+  <title>Index of /debian/pool/main/m/minicom</title>
+ </head>
+ <body>
+<h1>Index of /debian/pool/main/m/minicom</h1>
+  <table>
+   <tr><th valign="top"><img src="/icons/blank.gif" alt="[ICO]"></th><th><a href="?C=N;O=D">Name</a></th><th><a href="?C=M;O=A">Last modified</a></th><th><a href="?C=S;O=A">Size</a></th></tr>
+   <tr><th colspan="4"><hr></th></tr>
+<tr><td valign="top"><img src="/icons/back.gif" alt="[PARENTDIR]"></td><td><a href="/debian/pool/main/m/">Parent Directory</a></td><td>&nbsp;</td><td align="right">  - </td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1.debian.tar.xz">minicom_2.7-1+deb8u1.debian.tar.xz</a></td><td align="right">2017-04-24 08:22  </td><td align="right"> 14K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1.dsc">minicom_2.7-1+deb8u1.dsc</a></td><td align="right">2017-04-24 08:22  </td><td align="right">1.9K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1_amd64.deb">minicom_2.7-1+deb8u1_amd64.deb</a></td><td align="right">2017-04-25 21:10  </td><td align="right">257K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1_armel.deb">minicom_2.7-1+deb8u1_armel.deb</a></td><td align="right">2017-04-26 00:58  </td><td align="right">246K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1_armhf.deb">minicom_2.7-1+deb8u1_armhf.deb</a></td><td align="right">2017-04-26 00:58  </td><td align="right">245K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1+deb8u1_i386.deb">minicom_2.7-1+deb8u1_i386.deb</a></td><td align="right">2017-04-25 21:41  </td><td align="right">258K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1.debian.tar.xz">minicom_2.7-1.1.debian.tar.xz</a></td><td align="right">2017-04-22 09:34  </td><td align="right"> 14K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1.dsc">minicom_2.7-1.1.dsc</a></td><td align="right">2017-04-22 09:34  </td><td align="right">1.9K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_amd64.deb">minicom_2.7-1.1_amd64.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">261K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_arm64.deb">minicom_2.7-1.1_arm64.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">250K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_armel.deb">minicom_2.7-1.1_armel.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">255K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_armhf.deb">minicom_2.7-1.1_armhf.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">254K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_i386.deb">minicom_2.7-1.1_i386.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">266K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_mips.deb">minicom_2.7-1.1_mips.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">258K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_mips64el.deb">minicom_2.7-1.1_mips64el.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">259K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_mipsel.deb">minicom_2.7-1.1_mipsel.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">259K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_ppc64el.deb">minicom_2.7-1.1_ppc64el.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">253K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7-1.1_s390x.deb">minicom_2.7-1.1_s390x.deb</a></td><td align="right">2017-04-22 15:29  </td><td align="right">261K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_amd64.deb">minicom_2.7.1-1+b1_amd64.deb</a></td><td align="right">2018-05-06 08:14  </td><td align="right">262K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_arm64.deb">minicom_2.7.1-1+b1_arm64.deb</a></td><td align="right">2018-05-06 07:58  </td><td align="right">250K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_armel.deb">minicom_2.7.1-1+b1_armel.deb</a></td><td align="right">2018-05-06 08:45  </td><td align="right">253K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_armhf.deb">minicom_2.7.1-1+b1_armhf.deb</a></td><td align="right">2018-05-06 10:42  </td><td align="right">253K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_i386.deb">minicom_2.7.1-1+b1_i386.deb</a></td><td align="right">2018-05-06 08:55  </td><td align="right">266K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_mips.deb">minicom_2.7.1-1+b1_mips.deb</a></td><td align="right">2018-05-06 08:14  </td><td align="right">258K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_mipsel.deb">minicom_2.7.1-1+b1_mipsel.deb</a></td><td align="right">2018-05-06 12:13  </td><td align="right">259K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_ppc64el.deb">minicom_2.7.1-1+b1_ppc64el.deb</a></td><td align="right">2018-05-06 09:10  </td><td align="right">260K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b1_s390x.deb">minicom_2.7.1-1+b1_s390x.deb</a></td><td align="right">2018-05-06 08:14  </td><td align="right">257K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1+b2_mips64el.deb">minicom_2.7.1-1+b2_mips64el.deb</a></td><td align="right">2018-05-06 09:41  </td><td align="right">260K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1.debian.tar.xz">minicom_2.7.1-1.debian.tar.xz</a></td><td align="right">2017-08-13 15:40  </td><td align="right"> 14K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.7.1-1.dsc">minicom_2.7.1-1.dsc</a></td><td align="right">2017-08-13 15:40  </td><td align="right">1.8K</td></tr>
+<tr><td valign="top"><img src="/icons/compressed.gif" alt="[   ]"></td><td><a href="minicom_2.7.1.orig.tar.gz">minicom_2.7.1.orig.tar.gz</a></td><td align="right">2017-08-13 15:40  </td><td align="right">855K</td></tr>
+<tr><td valign="top"><img src="/icons/compressed.gif" alt="[   ]"></td><td><a href="minicom_2.7.orig.tar.gz">minicom_2.7.orig.tar.gz</a></td><td align="right">2014-01-01 09:36  </td><td align="right">843K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2.debian.tar.xz">minicom_2.8-2.debian.tar.xz</a></td><td align="right">2021-06-15 03:47  </td><td align="right"> 14K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2.dsc">minicom_2.8-2.dsc</a></td><td align="right">2021-06-15 03:47  </td><td align="right">1.8K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_amd64.deb">minicom_2.8-2_amd64.deb</a></td><td align="right">2021-06-15 03:58  </td><td align="right">280K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_arm64.deb">minicom_2.8-2_arm64.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">275K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_armel.deb">minicom_2.8-2_armel.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">271K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_armhf.deb">minicom_2.8-2_armhf.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">272K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_i386.deb">minicom_2.8-2_i386.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">285K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_mips64el.deb">minicom_2.8-2_mips64el.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">277K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_mipsel.deb">minicom_2.8-2_mipsel.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">278K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_ppc64el.deb">minicom_2.8-2_ppc64el.deb</a></td><td align="right">2021-06-15 04:13  </td><td align="right">286K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8-2_s390x.deb">minicom_2.8-2_s390x.deb</a></td><td align="right">2021-06-15 03:58  </td><td align="right">275K</td></tr>
+<tr><td valign="top"><img src="/icons/unknown.gif" alt="[   ]"></td><td><a href="minicom_2.8.orig.tar.bz2">minicom_2.8.orig.tar.bz2</a></td><td align="right">2021-01-03 12:44  </td><td align="right">598K</td></tr>
+   <tr><th colspan="4"><hr></th></tr>
+</table>
+<address>Apache Server at ftp.debian.org Port 80</address>
+</body></html>
diff --git a/poky/bitbake/lib/bb/tests/fetch.py b/poky/bitbake/lib/bb/tests/fetch.py
index 8ad1c85..ec7d83c 100644
--- a/poky/bitbake/lib/bb/tests/fetch.py
+++ b/poky/bitbake/lib/bb/tests/fetch.py
@@ -430,6 +430,12 @@
             : "http://somewhere2.org/somefile_1.2.3.tar.gz",
         ("git://someserver.org/bitbake;tag=1234567890123456789012345678901234567890;branch=master", "git://someserver.org/bitbake;branch=master", "git://git.openembedded.org/bitbake;protocol=http")
             : "git://git.openembedded.org/bitbake;tag=1234567890123456789012345678901234567890;branch=master;protocol=http",
+        ("git://user1@someserver.org/bitbake;tag=1234567890123456789012345678901234567890;branch=master", "git://someserver.org/bitbake;branch=master", "git://user2@git.openembedded.org/bitbake;protocol=http")
+            : "git://user2@git.openembedded.org/bitbake;tag=1234567890123456789012345678901234567890;branch=master;protocol=http",
+        ("git://someserver.org/bitbake;tag=1234567890123456789012345678901234567890;protocol=git;branch=master", "git://someserver.org/bitbake", "git://someotherserver.org/bitbake;protocol=https")
+            : "git://someotherserver.org/bitbake;tag=1234567890123456789012345678901234567890;protocol=https;branch=master",
+
+        ("gitsm://git.qemu.org/git/seabios.git/;protocol=https;name=roms/seabios;subpath=roms/seabios;bareclone=1;nobranch=1;rev=1234567890123456789012345678901234567890", "gitsm://.*/.*", "http://petalinux.xilinx.com/sswreleases/rel-v${XILINX_VER_MAIN}/downloads") : "http://petalinux.xilinx.com/sswreleases/rel-v%24%7BXILINX_VER_MAIN%7D/downloads/git2_git.qemu.org.git.seabios.git..tar.gz",
 
         #Renaming files doesn't work
         #("http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere.org/somedir1/somefile_1.2.3.tar.gz", "http://somewhere2.org/somedir3/somefile_2.3.4.tar.gz") : "http://somewhere2.org/somedir3/somefile_2.3.4.tar.gz"
@@ -491,7 +497,7 @@
         super(GitDownloadDirectoryNamingTest, self).setUp()
         self.recipe_url = "git://git.openembedded.org/bitbake"
         self.recipe_dir = "git.openembedded.org.bitbake"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
         self.mirror_dir = "github.com.openembedded.bitbake.git"
 
         self.d.setVar('SRCREV', '82ea737a0b42a8b53e11c9cde141e9e9c0bd8c40')
@@ -539,7 +545,7 @@
         super(TarballNamingTest, self).setUp()
         self.recipe_url = "git://git.openembedded.org/bitbake"
         self.recipe_tarball = "git2_git.openembedded.org.bitbake.tar.gz"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
         self.mirror_tarball = "git2_github.com.openembedded.bitbake.git.tar.gz"
 
         self.d.setVar('BB_GENERATE_MIRROR_TARBALLS', '1')
@@ -573,7 +579,7 @@
         super(GitShallowTarballNamingTest, self).setUp()
         self.recipe_url = "git://git.openembedded.org/bitbake"
         self.recipe_tarball = "gitshallow_git.openembedded.org.bitbake_82ea737-1_master.tar.gz"
-        self.mirror_url = "git://github.com/openembedded/bitbake.git"
+        self.mirror_url = "git://github.com/openembedded/bitbake.git;protocol=https"
         self.mirror_tarball = "gitshallow_github.com.openembedded.bitbake.git_82ea737-1_master.tar.gz"
 
         self.d.setVar('BB_GIT_SHALLOW', '1')
@@ -620,6 +626,9 @@
         os.makedirs(os.path.join(self.localsrcdir, 'dir', 'subdir'))
         touch(os.path.join(self.localsrcdir, 'dir', 'subdir', 'e'))
         touch(os.path.join(self.localsrcdir, r'backslash\x2dsystemd-unit.device'))
+        bb.process.run('tar cf archive.tar -C dir .', cwd=self.localsrcdir)
+        bb.process.run('tar czf archive.tar.gz -C dir .', cwd=self.localsrcdir)
+        bb.process.run('tar cjf archive.tar.bz2 -C dir .', cwd=self.localsrcdir)
         self.d.setVar("FILESPATH", self.localsrcdir)
 
     def fetchUnpack(self, uris):
@@ -674,6 +683,18 @@
         with self.assertRaises(bb.fetch2.UnpackError):
             self.fetchUnpack(['file://a;subdir=/bin/sh'])
 
+    def test_local_striplevel(self):
+        tree = self.fetchUnpack(['file://archive.tar;subdir=bar;striplevel=1'])
+        self.assertEqual(tree, ['bar/c', 'bar/d', 'bar/subdir/e'])
+
+    def test_local_striplevel_gzip(self):
+        tree = self.fetchUnpack(['file://archive.tar.gz;subdir=bar;striplevel=1'])
+        self.assertEqual(tree, ['bar/c', 'bar/d', 'bar/subdir/e'])
+
+    def test_local_striplevel_bzip2(self):
+        tree = self.fetchUnpack(['file://archive.tar.bz2;subdir=bar;striplevel=1'])
+        self.assertEqual(tree, ['bar/c', 'bar/d', 'bar/subdir/e'])
+
     def dummyGitTest(self, suffix):
         # Create dummy local Git repo
         src_dir = tempfile.mkdtemp(dir=self.tempdir,
@@ -875,17 +896,25 @@
     @skipIfNoNetwork()
     def test_fetch_premirror_specify_downloadfilename_regex_uri(self):
         self.d.setVar("PREMIRRORS", "http://.*/.* https://downloads.yoctoproject.org/releases/bitbake/")
-        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz;downloadfilename=bitbake-v1.0.0.tar.gz"], self.d)
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/1.0.tar.gz;downloadfilename=bitbake-1.0.tar.gz"], self.d)
         fetcher.download()
-        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-v1.0.0.tar.gz"), 57749)
+        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
 
     @skipIfNoNetwork()
     # BZ13039
     def test_fetch_premirror_specify_downloadfilename_specific_uri(self):
         self.d.setVar("PREMIRRORS", "http://invalid.yoctoproject.org/releases/bitbake https://downloads.yoctoproject.org/releases/bitbake")
-        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.0.tar.gz;downloadfilename=bitbake-v1.0.0.tar.gz"], self.d)
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/1.0.tar.gz;downloadfilename=bitbake-1.0.tar.gz"], self.d)
         fetcher.download()
-        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-v1.0.0.tar.gz"), 57749)
+        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
+
+    @skipIfNoNetwork()
+    def test_fetch_premirror_use_downloadfilename_to_fetch(self):
+        # Ensure downloadfilename is used when fetching from premirror.
+        self.d.setVar("PREMIRRORS", "http://.*/.* https://downloads.yoctoproject.org/releases/bitbake")
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.1.tar.gz;downloadfilename=bitbake-1.0.tar.gz"], self.d)
+        fetcher.download()
+        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
 
     @skipIfNoNetwork()
     def gitfetcher(self, url1, url2):
@@ -996,7 +1025,7 @@
     def test_git_submodule_dbus_broker(self):
         # The following external repositories have show failures in fetch and unpack operations
         # We want to avoid regressions!
-        url = "gitsm://github.com/bus1/dbus-broker;protocol=git;rev=fc874afa0992d0c75ec25acb43d344679f0ee7d2;branch=main"
+        url = "gitsm://github.com/bus1/dbus-broker;protocol=https;rev=fc874afa0992d0c75ec25acb43d344679f0ee7d2;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1012,7 +1041,7 @@
 
     @skipIfNoNetwork()
     def test_git_submodule_CLI11(self):
-        url = "gitsm://github.com/CLIUtils/CLI11;protocol=git;rev=bd4dc911847d0cde7a6b41dfa626a85aab213baf;branch=main"
+        url = "gitsm://github.com/CLIUtils/CLI11;protocol=https;rev=bd4dc911847d0cde7a6b41dfa626a85aab213baf;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1027,12 +1056,12 @@
     @skipIfNoNetwork()
     def test_git_submodule_update_CLI11(self):
         """ Prevent regression on update detection not finding missing submodule, or modules without needed commits """
-        url = "gitsm://github.com/CLIUtils/CLI11;protocol=git;rev=cf6a99fa69aaefe477cc52e3ef4a7d2d7fa40714;branch=main"
+        url = "gitsm://github.com/CLIUtils/CLI11;protocol=https;rev=cf6a99fa69aaefe477cc52e3ef4a7d2d7fa40714;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
 
         # CLI11 that pulls in a newer nlohmann-json
-        url = "gitsm://github.com/CLIUtils/CLI11;protocol=git;rev=49ac989a9527ee9bb496de9ded7b4872c2e0e5ca;branch=main"
+        url = "gitsm://github.com/CLIUtils/CLI11;protocol=https;rev=49ac989a9527ee9bb496de9ded7b4872c2e0e5ca;branch=main"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1046,7 +1075,7 @@
 
     @skipIfNoNetwork()
     def test_git_submodule_aktualizr(self):
-        url = "gitsm://github.com/advancedtelematic/aktualizr;branch=master;protocol=git;rev=d00d1a04cc2366d1a5f143b84b9f507f8bd32c44"
+        url = "gitsm://github.com/advancedtelematic/aktualizr;branch=master;protocol=https;rev=d00d1a04cc2366d1a5f143b84b9f507f8bd32c44"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1066,7 +1095,7 @@
         """ Prevent regression on deeply nested submodules not being checked out properly, even though they were fetched. """
 
         # This repository also has submodules where the module (name), path and url do not align
-        url = "gitsm://github.com/azure/iotedge.git;protocol=git;rev=d76e0316c6f324345d77c48a83ce836d09392699"
+        url = "gitsm://github.com/azure/iotedge.git;protocol=https;rev=d76e0316c6f324345d77c48a83ce836d09392699"
         fetcher = bb.fetch.Fetch([url], self.d)
         fetcher.download()
         # Previous cwd has been deleted
@@ -1124,7 +1153,7 @@
 
         bb.process.run("svn co %s svnfetch_co" % self.repo_url, cwd=self.tempdir)
         # Github will emulate SVN.  Use this to check if we're downloding...
-        bb.process.run("svn propset svn:externals 'bitbake svn://vcs.pcre.org/pcre2/code' .",
+        bb.process.run("svn propset svn:externals 'bitbake https://github.com/PhilipHazel/pcre2.git' .",
                        cwd=os.path.join(self.tempdir, 'svnfetch_co', 'trunk'))
         bb.process.run("svn commit --non-interactive -m 'Add external'",
                        cwd=os.path.join(self.tempdir, 'svnfetch_co', 'trunk'))
@@ -1242,7 +1271,7 @@
 
     test_git_uris = {
         # version pattern "X.Y.Z"
-        ("mx-1.0", "git://github.com/clutter-project/mx.git;branch=mx-1.4", "9b1db6b8060bd00b121a692f942404a24ae2960f", "")
+        ("mx-1.0", "git://github.com/clutter-project/mx.git;branch=mx-1.4;protocol=https", "9b1db6b8060bd00b121a692f942404a24ae2960f", "")
             : "1.99.4",
         # version pattern "vX.Y"
         # mirror of git.infradead.org since network issues interfered with testing
@@ -1269,9 +1298,9 @@
             : "0.4.3",
         ("build-appliance-image", "git://git.yoctoproject.org/poky", "b37dd451a52622d5b570183a81583cc34c2ff555", r"(?P<pver>(([0-9][\.|_]?)+[0-9]))")
             : "11.0.0",
-        ("chkconfig-alternatives-native", "git://github.com/kergoth/chkconfig;branch=sysroot", "cd437ecbd8986c894442f8fce1e0061e20f04dee", r"chkconfig\-(?P<pver>((\d+[\.\-_]*)+))")
+        ("chkconfig-alternatives-native", "git://github.com/kergoth/chkconfig;branch=sysroot;protocol=https", "cd437ecbd8986c894442f8fce1e0061e20f04dee", r"chkconfig\-(?P<pver>((\d+[\.\-_]*)+))")
             : "1.3.59",
-        ("remake", "git://github.com/rocky/remake.git", "f05508e521987c8494c92d9c2871aec46307d51d", r"(?P<pver>(\d+\.(\d+\.)*\d*(\+dbg\d+(\.\d+)*)*))")
+        ("remake", "git://github.com/rocky/remake.git;protocol=https", "f05508e521987c8494c92d9c2871aec46307d51d", r"(?P<pver>(\d+\.(\d+\.)*\d*(\+dbg\d+(\.\d+)*)*))")
             : "3.82+dbg0.9",
     }
 
@@ -1317,6 +1346,12 @@
         # http://ftp.debian.org/debian/pool/main/d/db5.3/
         ("db", "/berkeley-db/db-5.3.21.tar.gz", "/debian/pool/main/d/db5.3/", r"(?P<name>db5\.3_)(?P<pver>\d+(\.\d+)+).+\.orig\.tar\.xz")
             : "5.3.10",
+        #
+        # packages where the tarball compression changed in the new version
+        #
+        # http://ftp.debian.org/debian/pool/main/m/minicom/minicom_2.7.1.orig.tar.gz
+        ("minicom", "/debian/pool/main/m/minicom/minicom_2.7.1.orig.tar.gz", "", "")
+            : "2.8",
     }
 
     @skipIfNoNetwork()
@@ -1365,9 +1400,6 @@
                       "https://downloads.yoctoproject.org/releases/opkg/opkg-0.1.7.tar.gz",
                       "https://downloads.yoctoproject.org/releases/opkg/opkg-0.3.0.tar.gz",
                       "ftp://sourceware.org/pub/libffi/libffi-1.20.tar.gz",
-                      "http://ftp.gnu.org/gnu/autoconf/autoconf-2.60.tar.gz",
-                      "https://ftp.gnu.org/gnu/chess/gnuchess-5.08.tar.gz",
-                      "https://ftp.gnu.org/gnu/gmp/gmp-4.0.tar.gz",
                       # GitHub releases are hosted on Amazon S3, which doesn't support HEAD
                       "https://github.com/kergoth/tslib/releases/download/1.1/tslib-1.1.tar.xz"
                       ]
@@ -2058,7 +2090,7 @@
 
     @skipIfNoNetwork()
     def test_bitbake(self):
-        self.git('remote add --mirror=fetch origin git://github.com/openembedded/bitbake', cwd=self.srcdir)
+        self.git('remote add --mirror=fetch origin https://github.com/openembedded/bitbake', cwd=self.srcdir)
         self.git('config core.bare true', cwd=self.srcdir)
         self.git('fetch', cwd=self.srcdir)
 
@@ -2149,7 +2181,7 @@
     def test_lfs_enabled(self):
         import shutil
 
-        uri = 'git://%s;protocol=file;subdir=${S};lfs=1' % self.srcdir
+        uri = 'git://%s;protocol=file;lfs=1' % self.srcdir
         self.d.setVar('SRC_URI', uri)
 
         # Careful: suppress initial attempt at downloading until
@@ -2174,7 +2206,7 @@
     def test_lfs_disabled(self):
         import shutil
 
-        uri = 'git://%s;protocol=file;subdir=${S};lfs=0' % self.srcdir
+        uri = 'git://%s;protocol=file;lfs=0' % self.srcdir
         self.d.setVar('SRC_URI', uri)
 
         # In contrast to test_lfs_enabled(), allow the implicit download
@@ -2228,6 +2260,41 @@
             self.assertEqual(ud.clonedir, os.path.join(self.dldir, "git2", ref['gitsrcname']))
             self.assertEqual(ud.fullmirror, os.path.join(self.dldir, "git2_" + ref['gitsrcname'] + '.tar.gz'))
 
+class CrateTest(FetcherTest):
+    def test_crate_url(self):
+
+        uri = "crate://crates.io/glob/0.2.11"
+        self.d.setVar('SRC_URI', uri)
+
+        uris = self.d.getVar('SRC_URI').split()
+        d = self.d
+
+        fetcher = bb.fetch2.Fetch(uris, self.d)
+        fetcher.download()
+        fetcher.unpack(self.tempdir)
+        self.assertEqual(sorted(os.listdir(self.tempdir)), ['cargo_home', 'download' , 'unpacked'])
+        self.assertEqual(sorted(os.listdir(self.tempdir + "/download")), ['glob-0.2.11.crate', 'glob-0.2.11.crate.done'])
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/.cargo-checksum.json"))
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/src/lib.rs"))
+
+    def test_crate_url_multi(self):
+
+        uri = "crate://crates.io/glob/0.2.11 crate://crates.io/time/0.1.35"
+        self.d.setVar('SRC_URI', uri)
+
+        uris = self.d.getVar('SRC_URI').split()
+        d = self.d
+
+        fetcher = bb.fetch2.Fetch(uris, self.d)
+        fetcher.download()
+        fetcher.unpack(self.tempdir)
+        self.assertEqual(sorted(os.listdir(self.tempdir)), ['cargo_home', 'download' , 'unpacked'])
+        self.assertEqual(sorted(os.listdir(self.tempdir + "/download")), ['glob-0.2.11.crate', 'glob-0.2.11.crate.done', 'time-0.1.35.crate', 'time-0.1.35.crate.done'])
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/.cargo-checksum.json"))
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/glob-0.2.11/src/lib.rs"))
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/time-0.1.35/.cargo-checksum.json"))
+        self.assertTrue(os.path.exists(self.tempdir + "/cargo_home/bitbake/time-0.1.35/src/lib.rs"))
+
 class NPMTest(FetcherTest):
     def skipIfNoNpm():
         import shutil
diff --git a/poky/bitbake/lib/bb/tests/runqueue.py b/poky/bitbake/lib/bb/tests/runqueue.py
index 5b6ada8..35d5a84 100644
--- a/poky/bitbake/lib/bb/tests/runqueue.py
+++ b/poky/bitbake/lib/bb/tests/runqueue.py
@@ -29,9 +29,10 @@
     def run_bitbakecmd(self, cmd, builddir, sstatevalid="", slowtasks="", extraenv=None, cleanup=False):
         env = os.environ.copy()
         env["BBPATH"] = os.path.realpath(os.path.join(os.path.dirname(__file__), "runqueue-tests"))
-        env["BB_ENV_EXTRAWHITE"] = "SSTATEVALID SLOWTASKS"
+        env["BB_ENV_EXTRAWHITE"] = "SSTATEVALID SLOWTASKS TOPDIR"
         env["SSTATEVALID"] = sstatevalid
         env["SLOWTASKS"] = slowtasks
+        env["TOPDIR"] = builddir
         if extraenv:
             for k in extraenv:
                 env[k] = extraenv[k]
@@ -58,6 +59,8 @@
             expected = ['a1:' + x for x in self.alltasks]
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_single_setscenevalid(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
@@ -68,6 +71,8 @@
                         'a1:populate_sysroot', 'a1:build']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_intermediate_setscenevalid(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
@@ -77,6 +82,8 @@
                         'a1:populate_sysroot_setscene', 'a1:build']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_intermediate_notcovered(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
@@ -86,6 +93,8 @@
                         'a1:package_qa_setscene', 'a1:build', 'a1:populate_sysroot_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_all_setscenevalid(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
@@ -95,6 +104,8 @@
                         'a1:package_qa_setscene', 'a1:build', 'a1:populate_sysroot_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_no_settasks(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1", "-c", "patch"]
@@ -103,6 +114,8 @@
             expected = ['a1:fetch', 'a1:unpack', 'a1:patch']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_mix_covered_notcovered(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1:do_patch", "a1:do_populate_sysroot"]
@@ -111,6 +124,7 @@
             expected = ['a1:fetch', 'a1:unpack', 'a1:patch', 'a1:populate_sysroot_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
 
     # Test targets with intermediate setscene tasks alongside a target with no intermediate setscene tasks
     def test_mixed_direct_tasks_setscene_tasks(self):
@@ -122,6 +136,8 @@
                         'a1:package_qa_setscene', 'a1:build', 'a1:populate_sysroot_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     # This test slows down the execution of do_package_setscene until after other real tasks have
     # started running which tests for a bug where tasks were being lost from the buildable list of real
     # tasks if they weren't in tasks_covered or tasks_notcovered
@@ -136,6 +152,8 @@
                         'a1:populate_sysroot', 'a1:build']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_setscenewhitelist(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "a1"]
@@ -149,6 +167,8 @@
                         'a1:populate_sysroot_setscene', 'a1:package_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     # Tests for problems with dependencies between setscene tasks
     def test_no_setscenevalid_harddeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
@@ -162,6 +182,8 @@
                         'd1:populate_sysroot', 'd1:build']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_no_setscenevalid_withdeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "b1"]
@@ -172,6 +194,8 @@
             expected.remove('a1:package_qa')
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_single_a1_setscenevalid_withdeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "b1"]
@@ -182,6 +206,8 @@
                         'a1:populate_sysroot'] + ['b1:' + x for x in self.alltasks]
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_single_b1_setscenevalid_withdeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "b1"]
@@ -193,6 +219,8 @@
             expected.remove('b1:package')
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_intermediate_setscenevalid_withdeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "b1"]
@@ -203,6 +231,8 @@
             expected.remove('b1:package')
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_all_setscenevalid_withdeps(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             cmd = ["bitbake", "b1"]
@@ -213,6 +243,8 @@
                         'b1:packagedata_setscene', 'b1:package_qa_setscene', 'b1:populate_sysroot_setscene']
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_multiconfig_setscene_optimise(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             extraenv = {
@@ -232,6 +264,8 @@
                 expected.remove(x)
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_multiconfig_bbmask(self):
         # This test validates that multiconfigs can independently mask off
         # recipes they do not want with BBMASK. It works by having recipes
@@ -248,6 +282,8 @@
             cmd = ["bitbake", "mc:mc-1:fails-mc2", "mc:mc_2:fails-mc1"]
             self.run_bitbakecmd(cmd, tempdir, "", extraenv=extraenv)
 
+            self.shutdown(tempdir)
+
     def test_multiconfig_mcdepends(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             extraenv = {
@@ -278,6 +314,8 @@
                        ["mc_2:a1:%s" % t for t in rerun_tasks]
             self.assertEqual(set(tasks), set(expected))
 
+            self.shutdown(tempdir)
+
     def test_hashserv_single(self):
         with tempfile.TemporaryDirectory(prefix="runqueuetest") as tempdir:
             extraenv = {
@@ -358,7 +396,6 @@
 
     def shutdown(self, tempdir):
         # Wait for the hashserve socket to disappear else we'll see races with the tempdir cleanup
-        while (os.path.exists(tempdir + "/hashserve.sock") or os.path.exists(tempdir + "cache/hashserv.db-wal")):
+        while (os.path.exists(tempdir + "/hashserve.sock") or os.path.exists(tempdir + "cache/hashserv.db-wal") or os.path.exists(tempdir + "/bitbake.lock")):
             time.sleep(0.5)
 
-
diff --git a/poky/bitbake/lib/bb/ui/buildinfohelper.py b/poky/bitbake/lib/bb/ui/buildinfohelper.py
index 43aa592..835e92c 100644
--- a/poky/bitbake/lib/bb/ui/buildinfohelper.py
+++ b/poky/bitbake/lib/bb/ui/buildinfohelper.py
@@ -483,11 +483,11 @@
 
             # we already created the root directory, so ignore any
             # entry for it
-            if len(path) == 0:
+            if not path:
                 continue
 
             parent_path = "/".join(path.split("/")[:len(path.split("/")) - 1])
-            if len(parent_path) == 0:
+            if not parent_path:
                 parent_path = "/"
             parent_obj = self._cached_get(Target_File, target = target_obj, path = parent_path, inodetype = Target_File.ITYPE_DIRECTORY)
             tf_obj = Target_File.objects.create(
@@ -571,7 +571,7 @@
         assert isinstance(build_obj, Build)
         assert isinstance(target_obj, Target)
 
-        errormsg = ""
+        errormsg = []
         for p in packagedict:
             # Search name swtiches round the installed name vs package name
             # by default installed name == package name
@@ -633,10 +633,10 @@
                         packagefile_objects.append(Package_File( package = packagedict[p]['object'],
                             path = targetpath,
                             size = targetfilesize))
-                    if len(packagefile_objects):
+                    if packagefile_objects:
                         Package_File.objects.bulk_create(packagefile_objects)
                 except KeyError as e:
-                    errormsg += "  stpi: Key error, package %s key %s \n" % ( p, e )
+                    errormsg.append("  stpi: Key error, package %s key %s \n" % (p, e))
 
             # save disk installed size
             packagedict[p]['object'].installed_size = packagedict[p]['size']
@@ -673,13 +673,13 @@
                     logger.warning("Could not add dependency to the package %s "
                                    "because %s is an unknown package", p, px)
 
-        if len(packagedeps_objs) > 0:
+        if packagedeps_objs:
             Package_Dependency.objects.bulk_create(packagedeps_objs)
         else:
             logger.info("No package dependencies created")
 
-        if len(errormsg) > 0:
-            logger.warning("buildinfohelper: target_package_info could not identify recipes: \n%s", errormsg)
+        if errormsg:
+            logger.warning("buildinfohelper: target_package_info could not identify recipes: \n%s", "".join(errormsg))
 
     def save_target_image_file_information(self, target_obj, file_name, file_size):
         Target_Image_File.objects.create(target=target_obj,
@@ -767,7 +767,7 @@
             packagefile_objects.append(Package_File( package = bp_object,
                                         path = path,
                                         size = package_info['FILES_INFO'][path] ))
-        if len(packagefile_objects):
+        if packagefile_objects:
             Package_File.objects.bulk_create(packagefile_objects)
 
         def _po_byname(p):
@@ -809,7 +809,7 @@
                 packagedeps_objs.append(Package_Dependency(  package = bp_object,
                     depends_on = _po_byname(p), dep_type = Package_Dependency.TYPE_RCONFLICTS))
 
-        if len(packagedeps_objs) > 0:
+        if packagedeps_objs:
             Package_Dependency.objects.bulk_create(packagedeps_objs)
 
         return bp_object
@@ -826,7 +826,7 @@
                     desc = vardump[root_var]['doc']
             if desc is None:
                 desc = ''
-            if len(desc):
+            if desc:
                 HelpText.objects.get_or_create(build=build_obj,
                                                area=HelpText.VARIABLE,
                                                key=k, text=desc)
@@ -846,7 +846,7 @@
                                 file_name = vh['file'],
                                 line_number = vh['line'],
                                 operation = vh['op']))
-                if len(varhist_objects):
+                if varhist_objects:
                     VariableHistory.objects.bulk_create(varhist_objects)
 
 
@@ -1069,7 +1069,7 @@
         for t in self.internal_state['targets']:
             buildname = self.internal_state['build'].build_name
             pe, pv = task_object.recipe.version.split(":",1)
-            if len(pe) > 0:
+            if pe:
                 package = task_object.recipe.name + "-" + pe + "_" + pv
             else:
                 package = task_object.recipe.name + "-" + pv
@@ -1404,7 +1404,7 @@
         assert 'pn' in event._depgraph
         assert 'tdepends' in event._depgraph
 
-        errormsg = ""
+        errormsg = []
 
         # save layer version priorities
         if 'layer-priorities' in event._depgraph.keys():
@@ -1496,7 +1496,7 @@
                 elif dep in self.internal_state['recipes']:
                     dependency = self.internal_state['recipes'][dep]
                 else:
-                    errormsg += "  stpd: KeyError saving recipe dependency for %s, %s \n" % (recipe, dep)
+                    errormsg.append("  stpd: KeyError saving recipe dependency for %s, %s \n" % (recipe, dep))
                     continue
                 recipe_dep = Recipe_Dependency(recipe=target,
                                                depends_on=dependency,
@@ -1537,8 +1537,8 @@
                 taskdeps_objects.append(Task_Dependency( task = target, depends_on = dep ))
         Task_Dependency.objects.bulk_create(taskdeps_objects)
 
-        if len(errormsg) > 0:
-            logger.warning("buildinfohelper: dependency info not identify recipes: \n%s", errormsg)
+        if errormsg:
+            logger.warning("buildinfohelper: dependency info not identify recipes: \n%s", "".join(errormsg))
 
 
     def store_build_package_information(self, event):
@@ -1618,7 +1618,7 @@
 
         if 'backlog' in self.internal_state:
             # if we have a backlog of events, do our best to save them here
-            if len(self.internal_state['backlog']):
+            if self.internal_state['backlog']:
                 tempevent = self.internal_state['backlog'].pop()
                 logger.debug("buildinfohelper: Saving stored event %s "
                              % tempevent)
diff --git a/poky/bitbake/lib/bb/ui/uievent.py b/poky/bitbake/lib/bb/ui/uievent.py
index 8607d05..e19c770 100644
--- a/poky/bitbake/lib/bb/ui/uievent.py
+++ b/poky/bitbake/lib/bb/ui/uievent.py
@@ -73,13 +73,13 @@
 
         self.eventQueueLock.acquire()
 
-        if len(self.eventQueue) == 0:
+        if not self.eventQueue:
             self.eventQueueLock.release()
             return None
 
         item = self.eventQueue.pop(0)
 
-        if len(self.eventQueue) == 0:
+        if not self.eventQueue:
             self.eventQueueNotify.clear()
 
         self.eventQueueLock.release()
diff --git a/poky/bitbake/lib/bb/utils.py b/poky/bitbake/lib/bb/utils.py
index 7063491..0312231 100644
--- a/poky/bitbake/lib/bb/utils.py
+++ b/poky/bitbake/lib/bb/utils.py
@@ -16,7 +16,8 @@
 import multiprocessing
 import fcntl
 import importlib
-from importlib import machinery
+import importlib.machinery
+import importlib.util
 import itertools
 import subprocess
 import glob
@@ -26,6 +27,7 @@
 import signal
 import collections
 import copy
+import ctypes
 from subprocess import getstatusoutput
 from contextlib import contextmanager
 from ctypes import cdll
@@ -451,6 +453,10 @@
     consider the possibility of sending a signal to the process to break
     out - at which point you want block=True rather than retry=True.
     """
+    if len(name) > 255:
+        root, ext = os.path.splitext(name)
+        name = root[:255 - len(ext)] + ext
+
     dirname = os.path.dirname(name)
     mkdirhier(dirname)
 
@@ -487,7 +493,7 @@
                     return lf
             lf.close()
         except OSError as e:
-            if e.errno == errno.EACCES:
+            if e.errno == errno.EACCES or e.errno == errno.ENAMETOOLONG:
                 logger.error("Unable to acquire lock '%s', %s",
                              e.strerror, name)
                 sys.exit(1)
@@ -1590,6 +1596,36 @@
     except:
         pass
 
+def disable_network(uid=None, gid=None):
+    """
+    Disable networking in the current process if the kernel supports it, else
+    just return after logging to debug. To do this we need to create a new user
+    namespace, then map back to the original uid/gid.
+    """
+    libc = ctypes.CDLL('libc.so.6')
+
+    # From sched.h
+    # New user namespace
+    CLONE_NEWUSER = 0x10000000
+    # New network namespace
+    CLONE_NEWNET = 0x40000000
+
+    if uid is None:
+        uid = os.getuid()
+    if gid is None:
+        gid = os.getgid()
+
+    ret = libc.unshare(CLONE_NEWNET | CLONE_NEWUSER)
+    if ret != 0:
+        logger.debug("System doesn't suport disabling network without admin privs")
+        return
+    with open("/proc/self/uid_map", "w") as f:
+        f.write("%s %s 1" % (uid, uid))
+    with open("/proc/self/setgroups", "w") as f:
+        f.write("deny")
+    with open("/proc/self/gid_map", "w") as f:
+        f.write("%s %s 1" % (gid, gid))
+
 def export_proxies(d):
     """ export common proxies variables from datastore to environment """
     import os
@@ -1616,7 +1652,9 @@
         logger.debug('Loading plugin %s' % name)
         spec = importlib.machinery.PathFinder.find_spec(name, path=[pluginpath] )
         if spec:
-            return spec.loader.load_module()
+            mod = importlib.util.module_from_spec(spec)
+            spec.loader.exec_module(mod)
+            return mod
 
     logger.debug('Loading plugins from %s...' % pluginpath)
 
diff --git a/poky/bitbake/lib/pyinotify.py b/poky/bitbake/lib/pyinotify.py
index 6ae40a2..8c94b3e 100644
--- a/poky/bitbake/lib/pyinotify.py
+++ b/poky/bitbake/lib/pyinotify.py
@@ -52,7 +52,6 @@
 from datetime import datetime, timedelta
 import time
 import re
-import asyncore
 import glob
 import locale
 import subprocess
@@ -1475,35 +1474,6 @@
         self.loop()
 
 
-class AsyncNotifier(asyncore.file_dispatcher, Notifier):
-    """
-    This notifier inherits from asyncore.file_dispatcher in order to be able to
-    use pyinotify along with the asyncore framework.
-
-    """
-    def __init__(self, watch_manager, default_proc_fun=None, read_freq=0,
-                 threshold=0, timeout=None, channel_map=None):
-        """
-        Initializes the async notifier. The only additional parameter is
-        'channel_map' which is the optional asyncore private map. See
-        Notifier class for the meaning of the others parameters.
-
-        """
-        Notifier.__init__(self, watch_manager, default_proc_fun, read_freq,
-                          threshold, timeout)
-        asyncore.file_dispatcher.__init__(self, self._fd, channel_map)
-
-    def handle_read(self):
-        """
-        When asyncore tells us we can read from the fd, we proceed processing
-        events. This method can be overridden for handling a notification
-        differently.
-
-        """
-        self.read_events()
-        self.process_events()
-
-
 class TornadoAsyncNotifier(Notifier):
     """
     Tornado ioloop adapter.