diff --git a/poky/meta/conf/bitbake.conf b/poky/meta/conf/bitbake.conf
index dcf2007..7f8b043 100644
--- a/poky/meta/conf/bitbake.conf
+++ b/poky/meta/conf/bitbake.conf
@@ -123,7 +123,7 @@
 TUNE_FEATURES ??= "${TUNE_FEATURES_tune-${DEFAULTTUNE}}"
 LIBCEXTENSION ??= ""
 ABIEXTENSION ??= ""
-USE_NLS ??= "${@bb.utils.contains('DISTRO_FEATURES', 'libc-locale-code', 'yes', 'no', d)}"
+USE_NLS ??= "yes"
 SDKUSE_NLS ??= "yes"
 
 TARGET_ARCH = "${TUNE_ARCH}"
@@ -199,9 +199,9 @@
 # Package default variables.
 ##################################################################
 
-PN = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[0] or 'defaultpkgname'}"
-PV = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[1] or '1.0'}"
-PR = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[2] or 'r0'}"
+PN = "${@bb.parse.vars_from_file(d.getVar('FILE', False),d)[0] or 'defaultpkgname'}"
+PV = "${@bb.parse.vars_from_file(d.getVar('FILE', False),d)[1] or '1.0'}"
+PR = "${@bb.parse.vars_from_file(d.getVar('FILE', False),d)[2] or 'r0'}"
 PE = ""
 PF = "${PN}-${EXTENDPE}${PV}-${PR}"
 EXTENDPE = "${@['','${PE}_'][int(d.getVar('PE') or 0) > 0]}"
@@ -237,6 +237,10 @@
 #SUMMARY_${PN} ?= "${SUMMARY}"
 #DESCRIPTION_${PN} ?= "${DESCRIPTION}"
 
+SUMMARY_${PN}-src ?= "${SUMMARY} - Source files"
+DESCRIPTION_${PN}-src ?= "${DESCRIPTION}  \
+This package contains sources for debugging purposes."
+
 SUMMARY_${PN}-dbg ?= "${SUMMARY} - Debugging files"
 DESCRIPTION_${PN}-dbg ?= "${DESCRIPTION}  \
 This package contains ELF symbols and related sources for debugging purposes."
@@ -282,8 +286,10 @@
 # at least means builds aren't completely broken and symlinks don't take up much space.
 SOLIBSDEV_darwin = ".dylibbroken"
 
+PACKAGE_DEBUG_SPLIT_STYLE ?= "debug-with-srcpkg"
+
 PACKAGE_BEFORE_PN ?= ""
-PACKAGES = "${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN}"
+PACKAGES = "${PN}-src ${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN}"
 PACKAGES_DYNAMIC = "^${PN}-locale-.*"
 FILES = ""
 
@@ -322,6 +328,11 @@
 SECTION_${PN}-dbg = "devel"
 ALLOW_EMPTY_${PN}-dbg = "1"
 
+# The files list for source packages are dynamically set based on
+# PACKAGE_DEBUG_SPLIT_STYLE
+FILES_${PN}-src = ""
+SECTION_${PN}-src = "devel"
+
 FILES_${PN}-locale = "${datadir}/locale"
 
 # File manifest
@@ -483,7 +494,7 @@
     fgrep file find flock g++ gawk gcc getconf getopt git grep gunzip gzip \
     head hostname id install ld ldd ln ls make makeinfo md5sum mkdir mknod \
     mktemp mv nm objcopy objdump od patch perl pod2man pr printf pwd python2 \
-    python2.7 python3 ranlib readelf readlink rm rmdir rpcgen sed sh sha256sum \
+    python2.7 python3 ranlib readelf readlink realpath rm rmdir rpcgen sed seq sh sha256sum \
     sleep sort split stat strings strip tail tar tee test touch tr true uname \
     uniq wc wget which xargs \
 "
@@ -492,7 +503,7 @@
 HOSTTOOLS += "${@'ip ping ps scp ssh stty' if (bb.utils.contains_any('IMAGE_CLASSES', 'testimage testsdk', True, False, d) or any(x in (d.getVar("BBINCLUDED") or "") for x in ["testimage.bbclass", "testsdk.bbclass"])) else ''}"
 
 # Link to these if present
-HOSTTOOLS_NONFATAL += "aws ccache gcc-ar gpg ld.bfd ld.gold nc pigz sftp socat ssh sudo"
+HOSTTOOLS_NONFATAL += "aws gcc-ar gpg ld.bfd ld.gold nc pigz sftp socat ssh sudo"
 
 # Temporary add few more detected in bitbake world
 HOSTTOOLS_NONFATAL += "join nl size yes zcat"
@@ -504,10 +515,6 @@
 HOSTTOOLS_NONFATAL += "scp"
 
 CCACHE ??= ""
-# ccache < 3.1.10 will create CCACHE_DIR on startup even if disabled, and
-# autogen sets HOME=/dev/null so in certain situations builds can fail.
-# Explicitly export CCACHE_DIR until we can assume ccache >3.1.10 on the host.
-export CCACHE_DIR ??= "${@os.getenv('HOME')}/.ccache"
 
 TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_TARGET}"
 
@@ -517,9 +524,9 @@
 export CPP = "${HOST_PREFIX}gcc -E${TOOLCHAIN_OPTIONS} ${HOST_CC_ARCH}"
 export LD = "${HOST_PREFIX}ld${TOOLCHAIN_OPTIONS} ${HOST_LD_ARCH}"
 export CCLD = "${CC}"
-export AR = "${HOST_PREFIX}ar"
+export AR = "${HOST_PREFIX}gcc-ar"
 export AS = "${HOST_PREFIX}as ${HOST_AS_ARCH}"
-export RANLIB = "${HOST_PREFIX}ranlib"
+export RANLIB = "${HOST_PREFIX}gcc-ranlib"
 export STRIP = "${HOST_PREFIX}strip"
 export OBJCOPY = "${HOST_PREFIX}objcopy"
 export OBJDUMP = "${HOST_PREFIX}objdump"
@@ -562,7 +569,7 @@
 export TARGET_CPPFLAGS = ""
 
 export BUILD_CFLAGS = "${BUILD_CPPFLAGS} ${BUILD_OPTIMIZATION}"
-BUILDSDK_CFLAGS = "${BUILDSDK_CPPFLAGS} ${BUILD_OPTIMIZATION}"
+BUILDSDK_CFLAGS = "${BUILDSDK_CPPFLAGS} ${BUILD_OPTIMIZATION} ${DEBUG_PREFIX_MAP}"
 export CFLAGS = "${TARGET_CFLAGS}"
 export TARGET_CFLAGS = "${TARGET_CPPFLAGS} ${SELECTED_OPTIMIZATION}"
 
@@ -573,6 +580,7 @@
 
 export BUILD_LDFLAGS = "-L${STAGING_LIBDIR_NATIVE} \
                         -L${STAGING_BASE_LIBDIR_NATIVE} \
+                        -Wl,--enable-new-dtags \
                         -Wl,-rpath-link,${STAGING_LIBDIR_NATIVE} \
                         -Wl,-rpath-link,${STAGING_BASE_LIBDIR_NATIVE} \
                         -Wl,-rpath,${STAGING_LIBDIR_NATIVE} \
@@ -602,7 +610,8 @@
 # Optimization flags.
 ##################################################################
 # Beware: applied last to first
-DEBUG_PREFIX_MAP ?= "-fdebug-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
+DEBUG_PREFIX_MAP ?= "-fmacro-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
+                     -fdebug-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
                      -fdebug-prefix-map=${STAGING_DIR_HOST}= \
                      -fdebug-prefix-map=${STAGING_DIR_NATIVE}= \
 "
@@ -610,10 +619,11 @@
 
 # Disabled until the option works properly -feliminate-dwarf2-dups
 FULL_OPTIMIZATION = "-O2 -pipe ${DEBUG_FLAGS}"
-DEBUG_OPTIMIZATION = "-O -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe"
+DEBUG_OPTIMIZATION = "-Og ${DEBUG_FLAGS} -pipe"
 SELECTED_OPTIMIZATION = "${@d.getVar(oe.utils.vartrue('DEBUG_BUILD', 'DEBUG_OPTIMIZATION', 'FULL_OPTIMIZATION', d))}"
-SELECTED_OPTIMIZATION[vardeps] += "FULL_OPTIMIZATION DEBUG_OPTIMIZATION"
-BUILD_OPTIMIZATION = "${@oe.utils.vartrue('DEBUG_BUILD', '-O -g -feliminate-unused-debug-types -fno-omit-frame-pointer', '-O2', d)} -pipe"
+SELECTED_OPTIMIZATION[vardeps] += "FULL_OPTIMIZATION DEBUG_OPTIMIZATION DEBUG_BUILD"
+BUILD_OPTIMIZATION = "${@oe.utils.vartrue('DEBUG_BUILD', '-Og -g -feliminate-unused-debug-types', '-O2', d)} -pipe"
+BUILD_OPTIMIZATION[vardeps] += "DEBUG_BUILD"
 
 ##################################################################
 # Settings used by bitbake-layers.
@@ -791,6 +801,9 @@
 # Default to setting automatically based on cpu count
 PARALLEL_MAKE ?= "-j ${@oe.utils.cpu_count()}"
 
+# Default parallelism and resource usage for xz
+XZ_DEFAULTS ?= "--memlimit=50% --threads=${@oe.utils.cpu_count()}"
+
 ##################################################################
 # Magic Cookie for SANITY CHECK
 ##################################################################
@@ -816,7 +829,7 @@
 # Native distro features (will always be used for -native, even if they
 # are not enabled for target)
 DISTRO_FEATURES_NATIVE ?= "x11 ipv6 xattr"
-DISTRO_FEATURES_NATIVESDK ?= "x11 libc-charsets libc-locales libc-locale-code"
+DISTRO_FEATURES_NATIVESDK ?= "x11"
 
 # Normally target distro features will not be applied to native builds:
 # Native distro features on this list will use the target feature value
@@ -867,7 +880,9 @@
     STAMPS_DIR PRSERV_DUMPDIR PRSERV_DUMPFILE PRSERV_LOCKDOWN PARALLEL_MAKE \
     CCACHE_DIR EXTERNAL_TOOLCHAIN CCACHE CCACHE_NOHASHDIR LICENSE_PATH SDKPKGSUFFIX \
     WARN_QA ERROR_QA WORKDIR STAMPCLEAN PKGDATA_DIR BUILD_ARCH SSTATE_PKGARCH \
-    BB_WORKERCONTEXT BB_LIMITEDDEPS extend_recipe_sysroot DEPLOY_DIR"
+    BB_WORKERCONTEXT BB_LIMITEDDEPS BB_UNIHASH extend_recipe_sysroot DEPLOY_DIR \
+    SSTATE_HASHEQUIV_METHOD SSTATE_HASHEQUIV_SERVER SSTATE_HASHEQUIV_REPORT_TASKDATA \
+    SSTATE_HASHEQUIV_OWNER CCACHE_TOP_DIR"
 BB_HASHCONFIG_WHITELIST ?= "${BB_HASHBASE_WHITELIST} DATE TIME SSH_AGENT_PID \
     SSH_AUTH_SOCK PSEUDO_BUILD BB_ENV_EXTRAWHITE DISABLE_SANITY_CHECKS \
     PARALLEL_MAKE BB_NUMBER_THREADS BB_ORIGENV BB_INVALIDCONF BBINCLUDED \