diff --git a/import-layers/yocto-poky/scripts/contrib/bbvars.py b/import-layers/yocto-poky/scripts/contrib/bbvars.py
index 0896d64..d8d0594 100755
--- a/import-layers/yocto-poky/scripts/contrib/bbvars.py
+++ b/import-layers/yocto-poky/scripts/contrib/bbvars.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,12 +24,12 @@
 import re
 
 def usage():
-    print 'Usage: %s -d FILENAME [-d FILENAME]* -m METADIR [-m MATADIR]*' % os.path.basename(sys.argv[0])
-    print '  -d FILENAME         documentation file to search'
-    print '  -h, --help          display this help and exit'
-    print '  -m METADIR          meta directory to search for recipes'
-    print '  -t FILENAME         documentation config file (for doc tags)'
-    print '  -T                  Only display variables with doc tags (requires -t)'
+    print('Usage: %s -d FILENAME [-d FILENAME]* -m METADIR [-m MATADIR]*' % os.path.basename(sys.argv[0]))
+    print('  -d FILENAME         documentation file to search')
+    print('  -h, --help          display this help and exit')
+    print('  -m METADIR          meta directory to search for recipes')
+    print('  -t FILENAME         documentation config file (for doc tags)')
+    print('  -T                  Only display variables with doc tags (requires -t)')
 
 def recipe_bbvars(recipe):
     ''' Return a unique set of every bbvar encountered in the recipe '''
@@ -37,9 +37,9 @@
     vset = set()
     try:
         r = open(recipe)
-    except IOError as (errno, strerror):
-        print 'WARNING: Failed to open recipe ', recipe
-        print strerror
+    except IOError as err:
+        print('WARNING: Failed to open recipe ', recipe)
+        print(err.args[1])
 
     for line in r:
         # Strip any comments from the line
@@ -59,8 +59,8 @@
     for root,dirs,files in os.walk(metadir):
         for name in files:
             if name.find(".bb") >= 0:
-                for key in recipe_bbvars(os.path.join(root,name)).iterkeys():
-                    if bbvars.has_key(key):
+                for key in recipe_bbvars(os.path.join(root,name)).keys():
+                    if key in bbvars:
                         bbvars[key] = bbvars[key] + 1
                     else:
                         bbvars[key] = 1
@@ -71,9 +71,9 @@
     for doc in docfiles:
         try:
             f = open(doc)
-        except IOError as (errno, strerror):
-            print 'WARNING: Failed to open doc ', doc
-            print strerror
+        except IOError as err:
+            print('WARNING: Failed to open doc ', doc)
+            print(err.args[1])
         for line in f:
             if prog.match(line):
                 return True
@@ -87,8 +87,8 @@
 
     try:
         f = open(docconf)
-    except IOError as (errno, strerror):
-        return strerror
+    except IOError as err:
+        return err.args[1]
 
     for line in f:
         m = prog.search(line)
@@ -109,8 +109,8 @@
     # Collect and validate input
     try:
         opts, args = getopt.getopt(sys.argv[1:], "d:hm:t:T", ["help"])
-    except getopt.GetoptError, err:
-        print '%s' % str(err)
+    except getopt.GetoptError as err:
+        print('%s' % str(err))
         usage()
         sys.exit(2)
 
@@ -122,13 +122,13 @@
             if os.path.isfile(a):
                 docfiles.append(a)
             else:
-                print 'ERROR: documentation file %s is not a regular file' % (a)
+                print('ERROR: documentation file %s is not a regular file' % a)
                 sys.exit(3)
         elif o == '-m':
             if os.path.isdir(a):
                 metadirs.append(a)
             else:
-                print 'ERROR: meta directory %s is not a directory' % (a)
+                print('ERROR: meta directory %s is not a directory' % a)
                 sys.exit(4)
         elif o == "-t":
             if os.path.isfile(a):
@@ -139,31 +139,31 @@
             assert False, "unhandled option"
 
     if len(docfiles) == 0:
-        print 'ERROR: no docfile specified'
+        print('ERROR: no docfile specified')
         usage()
         sys.exit(5)
 
     if len(metadirs) == 0:
-        print 'ERROR: no metadir specified'
+        print('ERROR: no metadir specified')
         usage()
         sys.exit(6)
 
     if onlydoctags and docconf == "":
-        print 'ERROR: no docconf specified'
+        print('ERROR: no docconf specified')
         usage()
         sys.exit(7)
 
     # Collect all the variable names from the recipes in the metadirs
     for m in metadirs:
-        for key,cnt in collect_bbvars(m).iteritems():
-            if bbvars.has_key(key):
+        for key,cnt in collect_bbvars(m).items():
+            if key in bbvars:
                 bbvars[key] = bbvars[key] + cnt
             else:
                 bbvars[key] = cnt
 
     # Check each var for documentation
     varlen = 0
-    for v in bbvars.iterkeys():
+    for v in bbvars.keys():
         if len(v) > varlen:
             varlen = len(v)
         if not bbvar_is_documented(v, docfiles):
@@ -172,14 +172,14 @@
     varlen = varlen + 1
 
     # Report all undocumented variables
-    print 'Found %d undocumented bb variables (out of %d):' % (len(undocumented), len(bbvars))
+    print('Found %d undocumented bb variables (out of %d):' % (len(undocumented), len(bbvars)))
     header = '%s%s%s' % (str("VARIABLE").ljust(varlen), str("COUNT").ljust(6), str("DOCTAG").ljust(7))
-    print header
-    print str("").ljust(len(header), '=')
+    print(header)
+    print(str("").ljust(len(header), '='))
     for v in undocumented:
         doctag = bbvar_doctag(v, docconf)
         if not onlydoctags or not doctag == "":
-            print '%s%s%s' % (v.ljust(varlen), str(bbvars[v]).ljust(6), doctag)
+            print('%s%s%s' % (v.ljust(varlen), str(bbvars[v]).ljust(6), doctag))
 
 
 if __name__ == "__main__":
diff --git a/import-layers/yocto-poky/scripts/contrib/build-perf-test-wrapper.sh b/import-layers/yocto-poky/scripts/contrib/build-perf-test-wrapper.sh
new file mode 100755
index 0000000..e03ea97
--- /dev/null
+++ b/import-layers/yocto-poky/scripts/contrib/build-perf-test-wrapper.sh
@@ -0,0 +1,153 @@
+#!/bin/bash
+#
+# Build performance test script wrapper
+#
+# Copyright (c) 2016, Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+#
+# This script is a simple wrapper around the actual build performance tester
+# script. This script initializes the build environment, runs
+# oe-build-perf-test and archives the results.
+
+script=`basename $0`
+archive_dir=~/perf-results/archives
+
+usage () {
+cat << EOF
+Usage: $script [-h] [-c COMMITISH] [-C GIT_REPO]
+
+Optional arguments:
+  -h                show this help and exit.
+  -a ARCHIVE_DIR    archive results tarball here, give an empty string to
+                    disable tarball archiving (default: $archive_dir)
+  -c COMMITISH      test (checkout) this commit
+  -C GIT_REPO       commit results into Git
+  -w WORK_DIR       work dir for this script
+                    (default: GIT_TOP_DIR/build-perf-test)
+EOF
+}
+
+
+# Parse command line arguments
+commitish=""
+while getopts "ha:c:C:w:" opt; do
+    case $opt in
+        h)  usage
+            exit 0
+            ;;
+        a)  archive_dir=`realpath "$OPTARG"`
+            ;;
+        c)  commitish=$OPTARG
+            ;;
+        C)  results_repo=`realpath "$OPTARG"`
+            commit_results=("--commit-results" "$results_repo")
+            ;;
+        w)  base_dir=`realpath "$OPTARG"`
+            ;;
+        *)  usage
+            exit 1
+            ;;
+    esac
+done
+
+# Check positional args
+shift "$((OPTIND - 1))"
+if [ $# -ne 0 ]; then
+    echo "ERROR: No positional args are accepted."
+    usage
+    exit 1
+fi
+
+echo "Running on `uname -n`"
+if ! git_topdir=$(git rev-parse --show-toplevel); then
+        echo "The current working dir doesn't seem to be a git clone. Please cd there before running `basename $0`"
+        exit 1
+fi
+
+cd "$git_topdir"
+
+if [ -n "$commitish" ]; then
+    # Checkout correct revision
+    echo "Checking out $commitish"
+    git fetch &> /dev/null
+    git checkout HEAD^0 &> /dev/null
+    git branch -D $commitish &> /dev/null
+    if ! git checkout -f $commitish &> /dev/null; then
+        echo "Git checkout failed"
+        exit 1
+    fi
+fi
+
+# Setup build environment
+if [ -z "$base_dir" ]; then
+    base_dir="$git_topdir/build-perf-test"
+fi
+echo "Using working dir $base_dir"
+
+timestamp=`date "+%Y%m%d%H%M%S"`
+git_rev=$(git rev-parse --short HEAD)  || exit 1
+build_dir="$base_dir/build-$git_rev-$timestamp"
+results_dir="$base_dir/results-$git_rev-$timestamp"
+globalres_log="$base_dir/globalres.log"
+machine="qemux86"
+
+mkdir -p "$base_dir"
+source ./oe-init-build-env $build_dir >/dev/null || exit 1
+
+# Additional config
+auto_conf="$build_dir/conf/auto.conf"
+echo "MACHINE = \"$machine\"" > "$auto_conf"
+echo 'BB_NUMBER_THREADS = "8"' >> "$auto_conf"
+echo 'PARALLEL_MAKE = "-j 8"' >> "$auto_conf"
+echo "DL_DIR = \"$base_dir/downloads\"" >> "$auto_conf"
+# Disabling network sanity check slightly reduces the variance of timing results
+echo 'CONNECTIVITY_CHECK_URIS = ""' >> "$auto_conf"
+# Possibility to define extra settings
+if [ -f "$base_dir/auto.conf.extra" ]; then
+    cat "$base_dir/auto.conf.extra" >> "$auto_conf"
+fi
+
+# Run actual test script
+oe-build-perf-test --out-dir "$results_dir" \
+                   --globalres-file "$globalres_log" \
+                   --lock-file "$base_dir/oe-build-perf.lock" \
+                   "${commit_results[@]}" \
+                   --commit-results-branch "{tester_host}/{git_branch}/$machine" \
+                   --commit-results-tag "{tester_host}/{git_branch}/$machine/{git_commit_count}-g{git_commit}/{tag_num}"
+
+case $? in
+    1)  echo "ERROR: oe-build-perf-test script failed!"
+        exit 1
+        ;;
+    2)  echo "NOTE: some tests failed!"
+        ;;
+esac
+
+echo -ne "\n\n-----------------\n"
+echo "Global results file:"
+echo -ne "\n"
+
+cat "$globalres_log"
+
+if [ -n "$archive_dir" ]; then
+    echo -ne "\n\n-----------------\n"
+    echo "Archiving results in $archive_dir"
+    mkdir -p "$archive_dir"
+    results_basename=`basename "$results_dir"`
+    results_dirname=`dirname "$results_dir"`
+    tar -czf "$archive_dir/`uname -n`-${results_basename}.tar.gz" -C "$results_dirname" "$results_basename"
+fi
+
+rm -rf "$build_dir"
+rm -rf "$results_dir"
+
+echo "DONE"
diff --git a/import-layers/yocto-poky/scripts/contrib/ddimage b/import-layers/yocto-poky/scripts/contrib/ddimage
index a503f11..ab92995 100755
--- a/import-layers/yocto-poky/scripts/contrib/ddimage
+++ b/import-layers/yocto-poky/scripts/contrib/ddimage
@@ -100,5 +100,9 @@
 fi
 
 echo "Writing image..."
-dd if="$IMAGE" of="$DEVICE" bs="$BLOCKSIZE"
+if which pv >/dev/null 2>&1; then
+	pv "$IMAGE" | dd of="$DEVICE" bs="$BLOCKSIZE"
+else
+	dd if="$IMAGE" of="$DEVICE" bs="$BLOCKSIZE"
+fi
 sync
diff --git a/import-layers/yocto-poky/scripts/contrib/devtool-stress.py b/import-layers/yocto-poky/scripts/contrib/devtool-stress.py
index 8cf92ca..d555c51 100755
--- a/import-layers/yocto-poky/scripts/contrib/devtool-stress.py
+++ b/import-layers/yocto-poky/scripts/contrib/devtool-stress.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # devtool stress tester
 #
@@ -43,15 +43,15 @@
     tinfoil = bb.tinfoil.Tinfoil()
     tinfoil.prepare(False)
 
-    pkg_pn = tinfoil.cooker.recipecache.pkg_pn
-    (latest_versions, preferred_versions) = bb.providers.findProviders(tinfoil.config_data, tinfoil.cooker.recipecache, pkg_pn)
+    pkg_pn = tinfoil.cooker.recipecaches[''].pkg_pn
+    (latest_versions, preferred_versions) = bb.providers.findProviders(tinfoil.config_data, tinfoil.cooker.recipecaches[''], pkg_pn)
 
     skip_classes = args.skip_classes.split(',')
 
     recipelist = []
     for pn in sorted(pkg_pn):
         pref = preferred_versions[pn]
-        inherits = [os.path.splitext(os.path.basename(f))[0] for f in tinfoil.cooker.recipecache.inherits[pref[1]]]
+        inherits = [os.path.splitext(os.path.basename(f))[0] for f in tinfoil.cooker.recipecaches[''].inherits[pref[1]]]
         for cls in skip_classes:
             if cls in inherits:
                 break
@@ -121,14 +121,18 @@
             sys.stdout.write('Testing %s ' % (pn + ' ').ljust(40, '.'))
             sys.stdout.flush()
             failed = False
+            skipped = None
 
             srctree = os.path.join(tmpdir, pn)
             try:
                 bb.process.run('devtool extract %s %s' % (pn, srctree))
-            except bb.process.CmdError as exc:
-                failed = True
-                with open('stress_%s_extract.log' % pn, 'w') as f:
-                    f.write(str(exc))
+            except bb.process.ExecutionError as exc:
+                if exc.exitcode == 4:
+                    skipped = 'incompatible'
+                else:
+                    failed = True
+                    with open('stress_%s_extract.log' % pn, 'w') as f:
+                        f.write(str(exc))
 
             if os.path.exists(srctree):
                 shutil.rmtree(srctree)
@@ -136,6 +140,8 @@
             if failed:
                 print('failed')
                 failures += 1
+            elif skipped:
+                print('skipped (%s)' % skipped)
             else:
                 print('ok')
     except KeyboardInterrupt:
@@ -162,29 +168,34 @@
             sys.stdout.flush()
             failed = False
             reset = True
+            skipped = None
 
             srctree = os.path.join(tmpdir, pn)
             try:
                 bb.process.run('devtool modify -x %s %s' % (pn, srctree))
-            except bb.process.CmdError as exc:
-                with open('stress_%s_modify.log' % pn, 'w') as f:
-                    f.write(str(exc))
-                failed = 'modify'
-                reset = False
-
-            if not failed:
-                try:
-                    bb.process.run('bitbake -c install %s' % pn)
-                except bb.process.CmdError as exc:
-                    with open('stress_%s_install.log' % pn, 'w') as f:
+            except bb.process.ExecutionError as exc:
+                if exc.exitcode == 4:
+                    skipped = 'incompatible'
+                else:
+                    with open('stress_%s_modify.log' % pn, 'w') as f:
                         f.write(str(exc))
-                    failed = 'build'
-            if reset:
-                try:
-                    bb.process.run('devtool reset %s' % pn)
-                except bb.process.CmdError as exc:
-                    print('devtool reset failed: %s' % str(exc))
-                    break
+                    failed = 'modify'
+                    reset = False
+
+            if not skipped:
+                if not failed:
+                    try:
+                        bb.process.run('bitbake -c install %s' % pn)
+                    except bb.process.CmdError as exc:
+                        with open('stress_%s_install.log' % pn, 'w') as f:
+                            f.write(str(exc))
+                        failed = 'build'
+                if reset:
+                    try:
+                        bb.process.run('devtool reset %s' % pn)
+                    except bb.process.CmdError as exc:
+                        print('devtool reset failed: %s' % str(exc))
+                        break
 
             if os.path.exists(srctree):
                 shutil.rmtree(srctree)
@@ -192,6 +203,8 @@
             if failed:
                 print('failed (%s)' % failed)
                 failures += 1
+            elif skipped:
+                print('skipped (%s)' % skipped)
             else:
                 print('ok')
     except KeyboardInterrupt:
@@ -210,9 +223,10 @@
     parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true')
     parser.add_argument('-r', '--resume-from', help='Resume from specified recipe', metavar='PN')
     parser.add_argument('-o', '--only', help='Only test specified recipes (comma-separated without spaces, wildcards allowed)', metavar='PNLIST')
-    parser.add_argument('-s', '--skip', help='Skip specified recipes (comma-separated without spaces, wildcards allowed)', metavar='PNLIST')
+    parser.add_argument('-s', '--skip', help='Skip specified recipes (comma-separated without spaces, wildcards allowed)', metavar='PNLIST', default='gcc-source-*,kernel-devsrc,package-index,perf,meta-world-pkgdata,glibc-locale,glibc-mtrace,glibc-scripts,os-release')
     parser.add_argument('-c', '--skip-classes', help='Skip recipes inheriting specified classes (comma-separated) - default %(default)s', metavar='CLASSLIST', default='native,nativesdk,cross,cross-canadian,image,populate_sdk,meta,packagegroup')
     subparsers = parser.add_subparsers(title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
 
     parser_modify = subparsers.add_parser('modify',
                                           help='Run "devtool modify" followed by a build with bitbake on matching recipes',
diff --git a/import-layers/yocto-poky/scripts/contrib/graph-tool b/import-layers/yocto-poky/scripts/contrib/graph-tool
index 6dc7d33..1df5b8c 100755
--- a/import-layers/yocto-poky/scripts/contrib/graph-tool
+++ b/import-layers/yocto-poky/scripts/contrib/graph-tool
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Simple graph query utility
 # useful for getting answers from .dot files produced by bitbake -g
@@ -30,8 +30,7 @@
         print('ERROR: Please install the networkx python module')
         sys.exit(1)
 
-    graph = networkx.DiGraph(networkx.read_dot(dotfile))
-
+    graph = networkx.DiGraph(networkx.nx_pydot.read_dot(dotfile))
     def node_missing(node):
         import difflib
         close_matches = difflib.get_close_matches(node, graph.nodes(), cutoff=0.7)
@@ -53,11 +52,11 @@
 
     fromnode = args[1]
     tonode = args[2]
-    paths = list(get_path_networkx(args[0], fromnode, tonode))
-    if paths:
-        for path in paths:
-            print ' -> '.join(path)
-    else:
+
+    path = None
+    for path in get_path_networkx(args[0], fromnode, tonode):
+        print(" -> ".join(map(str, path)))
+    if not path:
         print("ERROR: no path from %s to %s in graph" % (fromnode, tonode))
         sys.exit(1)
 
diff --git a/import-layers/yocto-poky/scripts/contrib/list-packageconfig-flags.py b/import-layers/yocto-poky/scripts/contrib/list-packageconfig-flags.py
index 2f3b8b0..389fb97 100755
--- a/import-layers/yocto-poky/scripts/contrib/list-packageconfig-flags.py
+++ b/import-layers/yocto-poky/scripts/contrib/list-packageconfig-flags.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -37,7 +37,6 @@
     sys.stderr.write("Unable to find bitbake by searching parent directory of this script or PATH\n")
     sys.exit(1)
 
-import bb.cache
 import bb.cooker
 import bb.providers
 import bb.tinfoil
@@ -45,7 +44,7 @@
 def get_fnlist(bbhandler, pkg_pn, preferred):
     ''' Get all recipe file names '''
     if preferred:
-        (latest_versions, preferred_versions) = bb.providers.findProviders(bbhandler.config_data, bbhandler.cooker.recipecache, pkg_pn)
+        (latest_versions, preferred_versions) = bb.providers.findProviders(bbhandler.config_data, bbhandler.cooker.recipecaches[''], pkg_pn)
 
     fn_list = []
     for pn in sorted(pkg_pn):
@@ -58,11 +57,11 @@
 
 def get_recipesdata(bbhandler, preferred):
     ''' Get data of all available recipes which have PACKAGECONFIG flags '''
-    pkg_pn = bbhandler.cooker.recipecache.pkg_pn
+    pkg_pn = bbhandler.cooker.recipecaches[''].pkg_pn
 
     data_dict = {}
     for fn in get_fnlist(bbhandler, pkg_pn, preferred):
-        data = bb.cache.Cache.loadDataFull(fn, bbhandler.cooker.collection.get_file_appends(fn), bbhandler.config_data)
+        data = bbhandler.parse_recipe_file(fn)
         flags = data.getVarFlags("PACKAGECONFIG")
         flags.pop('doc', None)
         if flags:
@@ -86,7 +85,7 @@
     ''' Collect available PACKAGECONFIG flags and all affected pkgs '''
     # flag_dict = {'flag': ['pkg1', 'pkg2',...]}
     flag_dict = {}
-    for pkgname, flaglist in pkg_dict.iteritems():
+    for pkgname, flaglist in pkg_dict.items():
         for flag in flaglist:
             if flag in flag_dict:
                 flag_dict[flag].append(pkgname)
@@ -104,8 +103,8 @@
     pkgname_len += 1
 
     header = '%-*s%s' % (pkgname_len, str("RECIPE NAME"), str("PACKAGECONFIG FLAGS"))
-    print header
-    print str("").ljust(len(header), '=')
+    print(header)
+    print(str("").ljust(len(header), '='))
     for pkgname in sorted(pkg_dict):
         print('%-*s%s' % (pkgname_len, pkgname, ' '.join(pkg_dict[pkgname])))
 
@@ -115,28 +114,28 @@
     flag_len = len("PACKAGECONFIG FLAG") + 5
 
     header = '%-*s%s' % (flag_len, str("PACKAGECONFIG FLAG"), str("RECIPE NAMES"))
-    print header
-    print str("").ljust(len(header), '=')
+    print(header)
+    print(str("").ljust(len(header), '='))
 
     for flag in sorted(flag_dict):
         print('%-*s%s' % (flag_len, flag, '  '.join(sorted(flag_dict[flag]))))
 
 def display_all(data_dict):
     ''' Display all pkgs and PACKAGECONFIG information '''
-    print str("").ljust(50, '=')
+    print(str("").ljust(50, '='))
     for fn in data_dict:
         print('%s' % data_dict[fn].getVar("P", True))
-        print fn
+        print(fn)
         packageconfig = data_dict[fn].getVar("PACKAGECONFIG", True) or ''
         if packageconfig.strip() == '':
             packageconfig = 'None'
         print('PACKAGECONFIG %s' % packageconfig)
 
-        for flag,flag_val in data_dict[fn].getVarFlags("PACKAGECONFIG").iteritems():
+        for flag,flag_val in data_dict[fn].getVarFlags("PACKAGECONFIG").items():
             if flag == "doc":
                 continue
             print('PACKAGECONFIG[%s] %s' % (flag, flag_val))
-        print ''
+        print('')
 
 def main():
     pkg_dict = {}
@@ -160,20 +159,20 @@
 
     options, args = parser.parse_args(sys.argv)
 
-    bbhandler = bb.tinfoil.Tinfoil()
-    bbhandler.prepare()
-    print("Gathering recipe data...")
-    data_dict = get_recipesdata(bbhandler, options.preferred)
+    with bb.tinfoil.Tinfoil() as bbhandler:
+        bbhandler.prepare()
+        print("Gathering recipe data...")
+        data_dict = get_recipesdata(bbhandler, options.preferred)
 
-    if options.listtype == 'flags':
-        pkg_dict = collect_pkgs(data_dict)
-        flag_dict = collect_flags(pkg_dict)
-        display_flags(flag_dict)
-    elif options.listtype == 'recipes':
-        pkg_dict = collect_pkgs(data_dict)
-        display_pkgs(pkg_dict)
-    elif options.listtype == 'all':
-        display_all(data_dict)
+        if options.listtype == 'flags':
+            pkg_dict = collect_pkgs(data_dict)
+            flag_dict = collect_flags(pkg_dict)
+            display_flags(flag_dict)
+        elif options.listtype == 'recipes':
+            pkg_dict = collect_pkgs(data_dict)
+            display_pkgs(pkg_dict)
+        elif options.listtype == 'all':
+            display_all(data_dict)
 
 if __name__ == "__main__":
     main()
diff --git a/import-layers/yocto-poky/scripts/contrib/mkefidisk.sh b/import-layers/yocto-poky/scripts/contrib/mkefidisk.sh
index 333284f..d8db3c0 100755
--- a/import-layers/yocto-poky/scripts/contrib/mkefidisk.sh
+++ b/import-layers/yocto-poky/scripts/contrib/mkefidisk.sh
@@ -369,8 +369,8 @@
 # Installing to $DEVICE
 #
 debug "Mounting images and device in preparation for installation"
-mount -o loop $HDDIMG $HDDIMG_MNT >$OUT 2>&1 || error "Failed to mount $HDDIMG"
-mount -o loop $HDDIMG_MNT/rootfs.img $HDDIMG_ROOTFS_MNT >$OUT 2>&1 || error "Failed to mount rootfs.img"
+mount -o ro,loop $HDDIMG $HDDIMG_MNT >$OUT 2>&1 || error "Failed to mount $HDDIMG"
+mount -o ro,loop $HDDIMG_MNT/rootfs.img $HDDIMG_ROOTFS_MNT >$OUT 2>&1 || error "Failed to mount rootfs.img"
 mount $ROOTFS $ROOTFS_MNT >$OUT 2>&1 || error "Failed to mount $ROOTFS on $ROOTFS_MNT"
 mount $BOOTFS $BOOTFS_MNT >$OUT 2>&1 || error "Failed to mount $BOOTFS on $BOOTFS_MNT"
 
diff --git a/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-2.7.py b/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-2.7.py
index d93c943..f2ecf8d 100755
--- a/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-2.7.py
+++ b/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-2.7.py
@@ -97,7 +97,7 @@
         # generate package variables
         #
 
-        for name, data in sorted(self.packages.iteritems()):
+        for name, data in sorted(self.packages.items()):
             desc, deps, files = data
 
             #
@@ -130,7 +130,7 @@
         self.out( 'SUMMARY_${PN}-modules="All Python modules"' )
         line = 'RDEPENDS_${PN}-modules="'
 
-        for name, data in sorted(self.packages.iteritems()):
+        for name, data in sorted(self.packages.items()):
             if name not in ['${PN}-dev', '${PN}-distutils-staticdev']:
                 line += "%s " % name
 
@@ -153,7 +153,7 @@
             os.unlink(sys.argv[1])
         except Exception:
             sys.exc_clear()
-        outfile = file( sys.argv[1], "w" )
+        outfile = open( sys.argv[1], "w" )
     else:
         outfile = sys.stdout
 
diff --git a/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-3.5.py b/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-3.5.py
index 367b4b8..2906cc6 100755
--- a/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-3.5.py
+++ b/import-layers/yocto-poky/scripts/contrib/python/generate-manifest-3.5.py
@@ -100,7 +100,7 @@
         # generate package variables
         #
 
-        for name, data in sorted(self.packages.iteritems()):
+        for name, data in sorted(self.packages.items()):
             desc, deps, files = data
 
             #
@@ -133,7 +133,7 @@
         self.out( 'SUMMARY_${PN}-modules="All Python modules"' )
         line = 'RDEPENDS_${PN}-modules="'
 
-        for name, data in sorted(self.packages.iteritems()):
+        for name, data in sorted(self.packages.items()):
             if name not in ['${PN}-dev', '${PN}-distutils-staticdev']:
                 line += "%s " % name
 
@@ -156,7 +156,7 @@
             os.unlink(sys.argv[1])
         except Exception:
             sys.exc_clear()
-        outfile = file( sys.argv[1], "w" )
+        outfile = open( sys.argv[1], "w" )
     else:
         outfile = sys.stdout
 
@@ -167,7 +167,7 @@
     #
 
     m.addPackage( "${PN}-core", "Python interpreter and core modules", "${PN}-lang ${PN}-re ${PN}-reprlib ${PN}-codecs ${PN}-io ${PN}-math",
-    "__future__.* _abcoll.* abc.* ast.* copy.* copyreg.* ConfigParser.* " +
+    "__future__.* _abcoll.* abc.* ast.* copy.* copyreg.* configparser.* " +
     "genericpath.* getopt.* linecache.* new.* " +
     "os.* posixpath.* struct.* " +
     "warnings.* site.* stat.* " +
@@ -208,6 +208,9 @@
     m.addPackage( "${PN}-audio", "Python Audio Handling", "${PN}-core",
     "wave.* chunk.* sndhdr.* lib-dynload/ossaudiodev.*.so lib-dynload/audioop.*.so audiodev.* sunaudio.* sunau.* toaiff.*" )
 
+    m.addPackage( "${PN}-argparse", "Python command line argument parser", "${PN}-core ${PN}-codecs ${PN}-textutils",
+    "argparse.*" )
+
     m.addPackage( "${PN}-asyncio", "Python Asynchronous I/O, event loop, coroutines and tasks", "${PN}-core",
     "asyncio" )
 
@@ -217,8 +220,8 @@
     m.addPackage( "${PN}-compile", "Python bytecode compilation support", "${PN}-core",
     "py_compile.* compileall.*" )
 
-    m.addPackage( "${PN}-compression", "Python high-level compression support", "${PN}-core ${PN}-codecs",
-    "gzip.* zipfile.* tarfile.* lib-dynload/bz2.*.so" )
+    m.addPackage( "${PN}-compression", "Python high-level compression support", "${PN}-core ${PN}-codecs ${PN}-importlib ${PN}-threading ${PN}-shell",
+    "gzip.* zipfile.* tarfile.* lib-dynload/bz2.*.so lib-dynload/zlib.*.so" )
 
     m.addPackage( "${PN}-crypt", "Python basic cryptographic and hashing support", "${PN}-core",
     "hashlib.* md5.* sha.* lib-dynload/crypt.*.so lib-dynload/_hashlib.*.so lib-dynload/_sha256.*.so lib-dynload/_sha512.*.so" )
@@ -229,11 +232,11 @@
     m.addPackage( "${PN}-curses", "Python curses support", "${PN}-core",
     "curses lib-dynload/_curses.*.so lib-dynload/_curses_panel.*.so" ) # directory + low level module
 
-    m.addPackage( "${PN}-ctypes", "Python C types support", "${PN}-core",
+    m.addPackage( "${PN}-ctypes", "Python C types support", "${PN}-core ${PN}-subprocess",
     "ctypes lib-dynload/_ctypes.*.so lib-dynload/_ctypes_test.*.so" ) # directory + low level module
 
     m.addPackage( "${PN}-datetime", "Python calendar and time support", "${PN}-core ${PN}-codecs",
-    "_strptime.* calendar.* lib-dynload/datetime.*.so" )
+    "_strptime.* calendar.* datetime.* lib-dynload/_datetime.*.so" )
 
     m.addPackage( "${PN}-db", "Python file-based database support", "${PN}-core",
     "anydbm.* dumbdbm.* whichdb.* dbm lib-dynload/_dbm.*.so" )
@@ -256,13 +259,16 @@
     m.addPackage( "${PN}-email", "Python email support", "${PN}-core ${PN}-io ${PN}-re ${PN}-mime ${PN}-audio ${PN}-image ${PN}-netclient",
     "imaplib.* email" ) # package
 
+    m.addPackage( "${PN}-enum", "Python support for enumerations", "${PN}-core",
+    "enum.*" )
+
     m.addPackage( "${PN}-fcntl", "Python's fcntl interface", "${PN}-core",
     "lib-dynload/fcntl.*.so" )
 
     m.addPackage( "${PN}-html", "Python HTML processing support", "${PN}-core",
     "formatter.* htmlentitydefs.* htmllib.* markupbase.* sgmllib.* HTMLParser.* " )
 
-    m.addPackage( "${PN}-importlib", "Python import implementation library", "${PN}-core",
+    m.addPackage( "${PN}-importlib", "Python import implementation library", "${PN}-core ${PN}-lang",
     "importlib" )
 
     m.addPackage( "${PN}-gdbm", "Python GNU database support", "${PN}-core",
@@ -278,10 +284,10 @@
     m.addPackage( "${PN}-json", "Python JSON support", "${PN}-core ${PN}-math ${PN}-re",
     "json lib-dynload/_json.*.so" ) # package
 
-    m.addPackage( "${PN}-lang", "Python low-level language support", "${PN}-core",
+    m.addPackage( "${PN}-lang", "Python low-level language support", "${PN}-core ${PN}-importlib",
     "lib-dynload/_bisect.*.so lib-dynload/_collections.*.so lib-dynload/_heapq.*.so lib-dynload/_weakref.*.so lib-dynload/_functools.*.so " +
     "lib-dynload/array.*.so lib-dynload/itertools.*.so lib-dynload/operator.*.so lib-dynload/parser.*.so " +
-    "atexit.* bisect.* code.* codeop.* collections.* _collections_abc.* dis.* functools.* heapq.* inspect.* keyword.* opcode.* symbol.* repr.* token.* " +
+    "atexit.* bisect.* code.* codeop.* collections.* _collections_abc.* contextlib.* dis.* functools.* heapq.* inspect.* keyword.* opcode.* operator.* symbol.* repr.* token.* " +
     "tokenize.* traceback.* weakref.*" )
 
     m.addPackage( "${PN}-logging", "Python logging support", "${PN}-core ${PN}-io ${PN}-lang ${PN}-pickle ${PN}-stringold",
@@ -290,7 +296,7 @@
     m.addPackage( "${PN}-mailbox", "Python mailbox format support", "${PN}-core ${PN}-mime",
     "mailbox.*" )
 
-    m.addPackage( "${PN}-math", "Python math support", "${PN}-core",
+    m.addPackage( "${PN}-math", "Python math support", "${PN}-core ${PN}-crypt",
     "lib-dynload/cmath.*.so lib-dynload/math.*.so lib-dynload/_random.*.so random.* sets.*" )
 
     m.addPackage( "${PN}-mime", "Python MIME handling APIs", "${PN}-core ${PN}-io",
@@ -336,11 +342,17 @@
     m.addPackage( "${PN}-resource", "Python resource control interface", "${PN}-core",
     "lib-dynload/resource.*.so" )
 
-    m.addPackage( "${PN}-shell", "Python shell-like functionality", "${PN}-core ${PN}-re",
+    m.addPackage( "${PN}-selectors", "Python High-level I/O multiplexing", "${PN}-core",
+    "selectors.*" )
+
+    m.addPackage( "${PN}-shell", "Python shell-like functionality", "${PN}-core ${PN}-re ${PN}-compression",
     "cmd.* commands.* dircache.* fnmatch.* glob.* popen2.* shlex.* shutil.*" )
 
-    m.addPackage( "${PN}-subprocess", "Python subprocess support", "${PN}-core ${PN}-io ${PN}-re ${PN}-fcntl ${PN}-pickle",
-    "subprocess.*" )
+    m.addPackage( "${PN}-signal", "Python set handlers for asynchronous events support", "${PN}-core ${PN}-enum",
+    "signal.*" )
+
+    m.addPackage( "${PN}-subprocess", "Python subprocess support", "${PN}-core ${PN}-io ${PN}-re ${PN}-fcntl ${PN}-pickle ${PN}-threading ${PN}-signal ${PN}-selectors",
+    "subprocess.* lib-dynload/_posixsubprocess.*.so" )
 
     m.addPackage( "${PN}-sqlite3", "Python Sqlite3 database support", "${PN}-core ${PN}-datetime ${PN}-lang ${PN}-crypt ${PN}-io ${PN}-threading",
     "lib-dynload/_sqlite3.*.so sqlite3/dbapi2.* sqlite3/__init__.* sqlite3/dump.*" )
@@ -361,7 +373,7 @@
     "test" ) # package
 
     m.addPackage( "${PN}-threading", "Python threading & synchronization support", "${PN}-core ${PN}-lang",
-    "_threading_local.* dummy_thread.* dummy_threading.* mutex.* threading.* Queue.*" )
+    "_threading_local.* dummy_thread.* dummy_threading.* mutex.* threading.* queue.*" )
 
     m.addPackage( "${PN}-tkinter", "Python Tcl/Tk bindings", "${PN}-core",
     "lib-dynload/_tkinter.*.so lib-tk tkinter" ) # package
diff --git a/import-layers/yocto-poky/scripts/contrib/uncovered b/import-layers/yocto-poky/scripts/contrib/uncovered
new file mode 100755
index 0000000..a8399ad
--- /dev/null
+++ b/import-layers/yocto-poky/scripts/contrib/uncovered
@@ -0,0 +1,39 @@
+#!/bin/bash -eur
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Find python modules uncovered by oe-seltest
+#
+# Copyright (c) 2016, Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Author: Ed Bartosh <ed.bartosh@linux.intel.com>
+#
+
+if [ ! "$#" -eq 1 -o -t 0 ] ; then
+    echo 'Usage: coverage report | ./scripts/contrib/uncovered <dir>' 1>&2
+    exit 1
+fi
+
+path=$(readlink -ev $1)
+
+if [ ! -d "$path" ] ; then
+    echo "directory $1 doesn't exist" 1>&2
+    exit 1
+fi
+
+diff -u <(grep "$path" | grep -v '0%$' | cut -f1 -d: | sort) \
+     <(find $path | xargs file | grep 'Python script' | cut -f1 -d:| sort) | \
+     grep "^+$path" | cut -c2-
diff --git a/import-layers/yocto-poky/scripts/contrib/verify-homepage.py b/import-layers/yocto-poky/scripts/contrib/verify-homepage.py
index 265ff65..d39dd1d 100755
--- a/import-layers/yocto-poky/scripts/contrib/verify-homepage.py
+++ b/import-layers/yocto-poky/scripts/contrib/verify-homepage.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # This script can be used to verify HOMEPAGE values for all recipes in
 # the current configuration.
@@ -7,7 +7,7 @@
 import sys
 import os
 import subprocess
-import urllib2
+import urllib.request
 
 
 # Allow importing scripts/lib modules
@@ -33,30 +33,30 @@
         return 0
 
 def verifyHomepage(bbhandler):
-    pkg_pn = bbhandler.cooker.recipecache.pkg_pn
+    pkg_pn = bbhandler.cooker.recipecaches[''].pkg_pn
     pnlist = sorted(pkg_pn)
     count = 0
     checked = []
     for pn in pnlist:
         for fn in pkg_pn[pn]:
             # There's no point checking multiple BBCLASSEXTENDed variants of the same recipe
-            realfn, _ = bb.cache.Cache.virtualfn2realfn(fn)
+            realfn, _, _ = bb.cache.virtualfn2realfn(fn)
             if realfn in checked:
                 continue
-            data = bb.cache.Cache.loadDataFull(realfn, bbhandler.cooker.collection.get_file_appends(realfn), bbhandler.config_data)
+            data = bbhandler.parse_recipe_file(realfn)
             homepage = data.getVar("HOMEPAGE", True)
             if homepage:
                 try:
-                    urllib2.urlopen(homepage, timeout=5)
+                    urllib.request.urlopen(homepage, timeout=5)
                 except Exception:
                     count = count + wgetHomepage(os.path.basename(realfn), homepage)
             checked.append(realfn)
     return count
 
 if __name__=='__main__':
-    bbhandler = bb.tinfoil.Tinfoil()
-    bbhandler.prepare()
-    logger.info("Start verifying HOMEPAGE:")
-    failcount = verifyHomepage(bbhandler)
-    logger.info("Finished verifying HOMEPAGE.")
-    logger.info("Summary: %s failed" % failcount)
+    with bb.tinfoil.Tinfoil() as bbhandler:
+        bbhandler.prepare()
+        logger.info("Start verifying HOMEPAGE:")
+        failcount = verifyHomepage(bbhandler)
+        logger.info("Finished verifying HOMEPAGE.")
+        logger.info("Summary: %s failed" % failcount)