diff --git a/poky/meta/lib/oe/distro_check.py b/poky/meta/lib/oe/distro_check.py
index 88e46c3..4b2a9be 100644
--- a/poky/meta/lib/oe/distro_check.py
+++ b/poky/meta/lib/oe/distro_check.py
@@ -26,7 +26,7 @@
     maxstr=""
     for link in get_links_from_url(url, d):
         try:
-            # TODO use LooseVersion
+            # TODO use bb.utils.vercmp_string_op()
             release = float(link)
         except:
             release = 0
diff --git a/poky/meta/lib/oe/overlayfs.py b/poky/meta/lib/oe/overlayfs.py
index 21ef710..b5d5e88 100644
--- a/poky/meta/lib/oe/overlayfs.py
+++ b/poky/meta/lib/oe/overlayfs.py
@@ -15,6 +15,9 @@
 def strForBash(s):
     return s.replace('\\', '\\\\')
 
+def allOverlaysUnitName(d):
+    return d.getVar('PN') + '-overlays.service'
+
 def mountUnitName(unit):
     return escapeSystemdUnitName(unit) + '.mount'
 
@@ -39,5 +42,7 @@
             fileList.append(mountUnitName(path))
             fileList.append(helperUnitName(path))
 
+    fileList.append(allOverlaysUnitName(d))
+
     return fileList
 
diff --git a/poky/meta/lib/oe/package.py b/poky/meta/lib/oe/package.py
index dd700cb..7d387ee 100644
--- a/poky/meta/lib/oe/package.py
+++ b/poky/meta/lib/oe/package.py
@@ -16,7 +16,11 @@
     # 8 - shared library
     # 16 - kernel module
 
-    (file, elftype, strip) = arg
+    if len(arg) == 3:
+        (file, elftype, strip) = arg
+        extra_strip_sections = ''
+    else:
+        (file, elftype, strip, extra_strip_sections) = arg
 
     newmode = None
     if not os.access(file, os.W_OK) or os.access(file, os.R_OK):
@@ -40,6 +44,9 @@
     # shared or executable:
     elif elftype & 8 or elftype & 4:
         stripcmd.extend(["--remove-section=.comment", "--remove-section=.note"])
+        if extra_strip_sections != '':
+            for section in extra_strip_sections.split():
+                stripcmd.extend(["--remove-section=" + section])
 
     stripcmd.append(file)
     bb.debug(1, "runstrip: %s" % stripcmd)
diff --git a/poky/meta/lib/oe/patch.py b/poky/meta/lib/oe/patch.py
index fccbedb..950fe72 100644
--- a/poky/meta/lib/oe/patch.py
+++ b/poky/meta/lib/oe/patch.py
@@ -4,6 +4,7 @@
 
 import oe.path
 import oe.types
+import subprocess
 
 class NotFoundError(bb.BBHandledException):
     def __init__(self, path):
@@ -25,7 +26,6 @@
 
 def runcmd(args, dir = None):
     import pipes
-    import subprocess
 
     if dir:
         olddir = os.path.abspath(os.curdir)
@@ -56,6 +56,7 @@
         if dir:
             os.chdir(olddir)
 
+
 class PatchError(Exception):
     def __init__(self, msg):
         self.msg = msg
@@ -298,6 +299,19 @@
         PatchTree.__init__(self, dir, d)
         self.commituser = d.getVar('PATCH_GIT_USER_NAME')
         self.commitemail = d.getVar('PATCH_GIT_USER_EMAIL')
+        if not self._isInitialized():
+            self._initRepo()
+
+    def _isInitialized(self):
+        cmd = "git rev-parse --show-toplevel"
+        (status, output) = subprocess.getstatusoutput(cmd.split())
+        ## Make sure repo is in builddir to not break top-level git repos
+        return status == 0 and os.path.samedir(output, self.dir)
+
+    def _initRepo(self):
+        runcmd("git init".split(), self.dir)
+        runcmd("git add .".split(), self.dir)
+        runcmd("git commit -a --allow-empty -m Patching_started".split(), self.dir)
 
     @staticmethod
     def extractPatchHeader(patchfile):
diff --git a/poky/meta/lib/oe/reproducible.py b/poky/meta/lib/oe/reproducible.py
index 4fb99d9..35b8be6 100644
--- a/poky/meta/lib/oe/reproducible.py
+++ b/poky/meta/lib/oe/reproducible.py
@@ -92,7 +92,7 @@
     for root, dirs, files in os.walk(workdir, topdown=True):
         dirs[:] = [d for d in dirs if d not in exclude]
         if '.git' in dirs:
-            return root
+            return os.path.join(root, ".git")
 
     bb.warn("Failed to find a git repository in WORKDIR: %s" % workdir)
     return None
diff --git a/poky/meta/lib/oe/sdk.py b/poky/meta/lib/oe/sdk.py
index 37b59af..2734766 100644
--- a/poky/meta/lib/oe/sdk.py
+++ b/poky/meta/lib/oe/sdk.py
@@ -115,6 +115,10 @@
 
         rootfs_dir = [sdk_output, os.path.join(sdk_output, target_path)][target is True]
 
+    if target is False:
+        ipkgconf_sdk_target = d.getVar("IPKGCONF_SDK")
+        d.setVar("IPKGCONF_TARGET", ipkgconf_sdk_target)
+
     img_type = d.getVar('IMAGE_PKGTYPE')
     import importlib
     cls = importlib.import_module('oe.package_manager.' + img_type)
diff --git a/poky/meta/lib/oe/sstatesig.py b/poky/meta/lib/oe/sstatesig.py
index 038404e..abcd962 100644
--- a/poky/meta/lib/oe/sstatesig.py
+++ b/poky/meta/lib/oe/sstatesig.py
@@ -491,7 +491,8 @@
     if task == "package":
         include_timestamps = True
         include_root = False
-    extra_content = d.getVar('HASHEQUIV_HASH_VERSION')
+    hash_version = d.getVar('HASHEQUIV_HASH_VERSION')
+    extra_sigdata = d.getVar("HASHEQUIV_EXTRA_SIGDATA")
 
     filemaps = {}
     for m in (d.getVar('SSTATE_HASHEQUIV_FILEMAP') or '').split():
@@ -506,8 +507,11 @@
         basepath = os.path.normpath(path)
 
         update_hash("OEOuthashBasic\n")
-        if extra_content:
-            update_hash(extra_content + "\n")
+        if hash_version:
+            update_hash(hash_version + "\n")
+
+        if extra_sigdata:
+            update_hash(extra_sigdata + "\n")
 
         # It is only currently useful to get equivalent hashes for things that
         # can be restored from sstate. Since the sstate object is named using
diff --git a/poky/meta/lib/oe/terminal.py b/poky/meta/lib/oe/terminal.py
index 59aa80d..53186c4 100644
--- a/poky/meta/lib/oe/terminal.py
+++ b/poky/meta/lib/oe/terminal.py
@@ -5,7 +5,6 @@
 import oe.classutils
 import shlex
 from bb.process import Popen, ExecutionError
-from distutils.version import LooseVersion
 
 logger = logging.getLogger('BitBake.OE.Terminal')
 
@@ -86,10 +85,10 @@
     def __init__(self, sh_cmd, title=None, env=None, d=None):
         # Check version
         vernum = check_terminal_version("konsole")
-        if vernum and LooseVersion(vernum) < '2.0.0':
+        if vernum and bb.utils.vercmp_string_op(vernum, "2.0.0", "<"):
             # Konsole from KDE 3.x
             self.command = 'konsole -T "{title}" -e {command}'
-        elif vernum and LooseVersion(vernum) < '16.08.1':
+        elif vernum and bb.utils.vercmp_string_op(vernum, "16.08.1", "<"):
             # Konsole pre 16.08.01 Has nofork
             self.command = 'konsole --nofork --workdir . -p tabtitle="{title}" -e {command}'
         XTerminal.__init__(self, sh_cmd, title, env, d)
@@ -260,7 +259,7 @@
 
 def check_tmux_version(desired):
     vernum = check_terminal_version("tmux")
-    if vernum and LooseVersion(vernum) < desired:
+    if vernum and bb.utils.vercmp_string_op(vernum, desired, "<"):
         return False
     return vernum
 
diff --git a/poky/meta/lib/oe/utils.py b/poky/meta/lib/oe/utils.py
index cf65639..136650e 100644
--- a/poky/meta/lib/oe/utils.py
+++ b/poky/meta/lib/oe/utils.py
@@ -248,9 +248,9 @@
     trimmed = ".".join(parts[:num_parts])
     return trimmed
 
-def cpu_count(at_least=1):
+def cpu_count(at_least=1, at_most=64):
     cpus = len(os.sched_getaffinity(0))
-    return max(cpus, at_least)
+    return max(min(cpus, at_most), at_least)
 
 def execute_pre_post_process(d, cmds):
     if cmds is None:
@@ -483,8 +483,8 @@
 
 class ThreadedWorker(Thread):
     """Thread executing tasks from a given tasks queue"""
-    def __init__(self, tasks, worker_init, worker_end):
-        Thread.__init__(self)
+    def __init__(self, tasks, worker_init, worker_end, name=None):
+        Thread.__init__(self, name=name)
         self.tasks = tasks
         self.daemon = True
 
@@ -515,13 +515,12 @@
 
 class ThreadedPool:
     """Pool of threads consuming tasks from a queue"""
-    def __init__(self, num_workers, num_tasks, worker_init=None,
-            worker_end=None):
+    def __init__(self, num_workers, num_tasks, worker_init=None, worker_end=None, name="ThreadedPool-"):
         self.tasks = Queue(num_tasks)
         self.workers = []
 
-        for _ in range(num_workers):
-            worker = ThreadedWorker(self.tasks, worker_init, worker_end)
+        for i in range(num_workers):
+            worker = ThreadedWorker(self.tasks, worker_init, worker_end, name=name + str(i))
             self.workers.append(worker)
 
     def start(self):