yocto-poky/meta/classes/populate_sdk_ext.bbclass - openbmc/openbmc - Gitiles

 # Extensible SDK

 inherit populate_sdk_base

 # NOTE: normally you cannot use task overrides for this kind of thing - this
 # only works because of get_sdk_ext_rdepends()

 TOOLCHAIN_HOST_TASK_task-populate-sdk-ext = " \
     meta-environment-extsdk-${MACHINE} \
     "

 TOOLCHAIN_TARGET_TASK_task-populate-sdk-ext = ""

 SDK_RDEPENDS_append_task-populate-sdk-ext = " ${SDK_TARGETS}"

 SDK_RELOCATE_AFTER_INSTALL_task-populate-sdk-ext = "0"

 SDK_LOCAL_CONF_WHITELIST ?= ""
 SDK_LOCAL_CONF_BLACKLIST ?= "CONF_VERSION BB_NUMBER_THREADS PARALLEL_MAKE PRSERV_HOST"
 SDK_INHERIT_BLACKLIST ?= "buildhistory icecc"
 SDK_UPDATE_URL ?= ""

 SDK_TARGETS ?= "${PN}"
 OE_INIT_ENV_SCRIPT ?= "oe-init-build-env"

 # The files from COREBASE that you want preserved in the COREBASE copied
 # into the sdk. This allows someone to have their own setup scripts in
 # COREBASE be preserved as well as untracked files.
 COREBASE_FILES ?= " \
     oe-init-build-env \
     oe-init-build-env-memres \
     scripts \
     LICENSE \
     .templateconf \
 "

 SDK_DIR_task-populate-sdk-ext = "${WORKDIR}/sdk-ext"
 B_task-populate-sdk-ext = "${SDK_DIR}"
 TOOLCHAIN_OUTPUTNAME_task-populate-sdk-ext = "${SDK_NAME}-toolchain-ext-${SDK_VERSION}"

 SDK_TITLE_task-populate-sdk-ext = "${@d.getVar('DISTRO_NAME', True) or d.getVar('DISTRO', True)} Extensible SDK"

 python copy_buildsystem () {
     import re
     import oe.copy_buildsystem

     oe_init_env_script = d.getVar('OE_INIT_ENV_SCRIPT', True)

     conf_bbpath = ''
     conf_initpath = ''
     core_meta_subdir = ''

     # Copy in all metadata layers + bitbake (as repositories)
     buildsystem = oe.copy_buildsystem.BuildSystem('extensible SDK', d)
     baseoutpath = d.getVar('SDK_OUTPUT', True) + '/' + d.getVar('SDKPATH', True)
     layers_copied = buildsystem.copy_bitbake_and_layers(baseoutpath + '/layers')

     sdkbblayers = []
     corebase = os.path.basename(d.getVar('COREBASE', True))
     for layer in layers_copied:
         if corebase == os.path.basename(layer):
             conf_bbpath = os.path.join('layers', layer, 'bitbake')
         else:
             sdkbblayers.append(layer)

     for path in os.listdir(baseoutpath + '/layers'):
         relpath = os.path.join('layers', path, oe_init_env_script)
         if os.path.exists(os.path.join(baseoutpath, relpath)):
             conf_initpath = relpath

         relpath = os.path.join('layers', path, 'scripts', 'devtool')
         if os.path.exists(os.path.join(baseoutpath, relpath)):
             scriptrelpath = os.path.dirname(relpath)

         relpath = os.path.join('layers', path, 'meta')
         if os.path.exists(os.path.join(baseoutpath, relpath, 'lib', 'oe')):
             core_meta_subdir = relpath

     d.setVar('oe_init_build_env_path', conf_initpath)
     d.setVar('scriptrelpath', scriptrelpath)

     # Write out config file for devtool
     import ConfigParser
     config = ConfigParser.SafeConfigParser()
     config.add_section('General')
     config.set('General', 'bitbake_subdir', conf_bbpath)
     config.set('General', 'init_path', conf_initpath)
     config.set('General', 'core_meta_subdir', core_meta_subdir)
     config.add_section('SDK')
     config.set('SDK', 'sdk_targets', d.getVar('SDK_TARGETS', True))
     updateurl = d.getVar('SDK_UPDATE_URL', True)
     if updateurl:
         config.set('SDK', 'updateserver', updateurl)
     bb.utils.mkdirhier(os.path.join(baseoutpath, 'conf'))
     with open(os.path.join(baseoutpath, 'conf', 'devtool.conf'), 'w') as f:
         config.write(f)

     # Create a layer for new recipes / appends
     bbpath = d.getVar('BBPATH', True)
     bb.process.run(['devtool', '--bbpath', bbpath, '--basepath', baseoutpath, 'create-workspace', '--create-only', os.path.join(baseoutpath, 'workspace')])

     # Create bblayers.conf
     bb.utils.mkdirhier(baseoutpath + '/conf')
     with open(baseoutpath + '/conf/bblayers.conf', 'w') as f:
         f.write('# WARNING: this configuration has been automatically generated and in\n')
         f.write('# most cases should not be edited. If you need more flexibility than\n')
         f.write('# this configuration provides, it is strongly suggested that you set\n')
         f.write('# up a proper instance of the full build system and use that instead.\n\n')

         f.write('LCONF_VERSION = "%s"\n\n' % d.getVar('LCONF_VERSION', False))
         f.write('BBPATH = "$' + '{TOPDIR}"\n')
         f.write('SDKBASEMETAPATH = "$' + '{TOPDIR}"\n')
         f.write('BBLAYERS := " \\\n')
         for layerrelpath in sdkbblayers:
             f.write('    $' + '{SDKBASEMETAPATH}/layers/%s \\\n' % layerrelpath)
         f.write('    $' + '{SDKBASEMETAPATH}/workspace \\\n')
         f.write('    "\n')

     # Create local.conf
     local_conf_whitelist = (d.getVar('SDK_LOCAL_CONF_WHITELIST', True) or '').split()
     local_conf_blacklist = (d.getVar('SDK_LOCAL_CONF_BLACKLIST', True) or '').split()
     def handle_var(varname, origvalue, op, newlines):
         if varname in local_conf_blacklist or (origvalue.strip().startswith('/') and not varname in local_conf_whitelist):
             newlines.append('# Removed original setting of %s\n' % varname)
             return None, op, 0, True
         else:
             return origvalue, op, 0, True
     varlist = ['[^#=+ ]*']
     builddir = d.getVar('TOPDIR', True)
     with open(builddir + '/conf/local.conf', 'r') as f:
         oldlines = f.readlines()
     (updated, newlines) = bb.utils.edit_metadata(oldlines, varlist, handle_var)

     with open(baseoutpath + '/conf/local.conf', 'w') as f:
         f.write('# WARNING: this configuration has been automatically generated and in\n')
         f.write('# most cases should not be edited. If you need more flexibility than\n')
         f.write('# this configuration provides, it is strongly suggested that you set\n')
         f.write('# up a proper instance of the full build system and use that instead.\n\n')
         for line in newlines:
             if line.strip() and not line.startswith('#'):
                 f.write(line)

         f.write('INHERIT += "%s"\n\n' % 'uninative')
         f.write('CONF_VERSION = "%s"\n\n' % d.getVar('CONF_VERSION', False))

         # Some classes are not suitable for SDK, remove them from INHERIT
         f.write('INHERIT_remove = "%s"\n' % d.getVar('SDK_INHERIT_BLACKLIST'))

         # Bypass the default connectivity check if any
         f.write('CONNECTIVITY_CHECK_URIS = ""\n\n')

         # Another hack, but we want the native part of sstate to be kept the same
         # regardless of the host distro
         fixedlsbstring = 'SDK-Fixed'
         f.write('NATIVELSBSTRING_forcevariable = "%s"\n\n' % fixedlsbstring)

         # Ensure locked sstate cache objects are re-used without error
         f.write('SIGGEN_LOCKEDSIGS_CHECK_LEVEL = "none"\n\n')

         # If you define a sdk_extraconf() function then it can contain additional config
         extraconf = (d.getVar('sdk_extraconf', True) or '').strip()
         if extraconf:
             # Strip off any leading / trailing spaces
             for line in extraconf.splitlines():
                 f.write(line.strip() + '\n')

         f.write('require conf/locked-sigs.inc\n')

     sigfile = d.getVar('WORKDIR', True) + '/locked-sigs.inc'
     oe.copy_buildsystem.generate_locked_sigs(sigfile, d)

     # Filter the locked signatures file to just the sstate tasks we are interested in
     allowed_tasks = ['do_populate_lic', 'do_populate_sysroot', 'do_packagedata', 'do_package_write_ipk', 'do_package_write_rpm', 'do_package_write_deb', 'do_package_qa', 'do_deploy']
     excluded_targets = d.getVar('SDK_TARGETS', True)
     lockedsigs_pruned = baseoutpath + '/conf/locked-sigs.inc'
     oe.copy_buildsystem.prune_lockedsigs(allowed_tasks,
                                          excluded_targets,
                                          sigfile,
                                          lockedsigs_pruned)

     sstate_out = baseoutpath + '/sstate-cache'
     bb.utils.remove(sstate_out, True)
     oe.copy_buildsystem.create_locked_sstate_cache(lockedsigs_pruned,
                                                    d.getVar('SSTATE_DIR', True),
                                                    sstate_out, d,
                                                    fixedlsbstring)
 }

 def extsdk_get_buildtools_filename(d):
     return '*-buildtools-nativesdk-standalone-*.sh'

 install_tools() {
 	install -d ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}
 	lnr ${SDK_OUTPUT}/${SDKPATH}/${scriptrelpath}/devtool ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/devtool
 	lnr ${SDK_OUTPUT}/${SDKPATH}/${scriptrelpath}/recipetool ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/recipetool
 	touch ${SDK_OUTPUT}/${SDKPATH}/.devtoolbase

 	# find latest buildtools-tarball and install it
 	buildtools_path=`ls -t1 ${SDK_DEPLOY}/${@extsdk_get_buildtools_filename(d)} | head -n1`
 	install $buildtools_path ${SDK_OUTPUT}/${SDKPATH}

 	install ${SDK_DEPLOY}/${BUILD_ARCH}-nativesdk-libc.tar.bz2 ${SDK_OUTPUT}/${SDKPATH}

 	install -m 0755 ${COREBASE}/meta/files/ext-sdk-prepare.sh ${SDK_OUTPUT}/${SDKPATH}
 }

 # Since bitbake won't run as root it doesn't make sense to try and install
 # the extensible sdk as root.
 sdk_ext_preinst() {
 	if [ "`id -u`" = "0" ]; then
 		echo "ERROR: The extensible sdk cannot be installed as root."
 		exit 1
 	fi
 	SDK_EXTENSIBLE="1"
 }
 SDK_PRE_INSTALL_COMMAND_task-populate-sdk-ext = "${sdk_ext_preinst}"

 # FIXME this preparation should be done as part of the SDK construction
 sdk_ext_postinst() {
 	printf "\nExtracting buildtools...\n"
 	cd $target_sdk_dir
 	printf "buildtools\ny" | ./*buildtools-nativesdk-standalone* > /dev/null || ( printf 'ERROR: buildtools installation failed\n' ; exit 1 )

 	# Make sure when the user sets up the environment, they also get
 	# the buildtools-tarball tools in their path.
 	env_setup_script="$target_sdk_dir/environment-setup-${REAL_MULTIMACH_TARGET_SYS}"
 	echo ". $target_sdk_dir/buildtools/environment-setup*" >> $env_setup_script

 	# Allow bitbake environment setup to be ran as part of this sdk.
 	echo "export OE_SKIP_SDK_CHECK=1" >> $env_setup_script

 	# A bit of another hack, but we need this in the path only for devtool
 	# so put it at the end of $PATH.
 	echo "export PATH=\$PATH:$target_sdk_dir/sysroots/${SDK_SYS}/${bindir_nativesdk}" >> $env_setup_script

 	echo "printf 'SDK environment now set up; additionally you may now run devtool to perform development tasks.\nRun devtool --help for further details.\n'" >> $env_setup_script

 	# Warn if trying to use external bitbake and the ext SDK together
 	echo "(which bitbake > /dev/null 2>&1 && echo 'WARNING: attempting to use the extensible SDK in an environment set up to run bitbake - this may lead to unexpected results. Please source this script in a new shell session instead.') || true" >> $env_setup_script

 	# For now this is where uninative.bbclass expects the tarball
 	mv *-nativesdk-libc.tar.* $target_sdk_dir/`dirname ${oe_init_build_env_path}`

 	if [ "$prepare_buildsystem" != "no" ]; then
 		printf "Preparing build system...\n"
 		# dash which is /bin/sh on Ubuntu will not preserve the
 		# current working directory when first ran, nor will it set $1 when
 		# sourcing a script. That is why this has to look so ugly.
 		LOGFILE="$target_sdk_dir/preparing_build_system.log"
 		sh -c ". buildtools/environment-setup* > $LOGFILE && cd $target_sdk_dir/`dirname ${oe_init_build_env_path}` && set $target_sdk_dir && . $target_sdk_dir/${oe_init_build_env_path} $target_sdk_dir >> $LOGFILE && $target_sdk_dir/ext-sdk-prepare.sh $target_sdk_dir '${SDK_TARGETS}' >> $LOGFILE 2>&1" || { echo "ERROR: SDK preparation failed: see $LOGFILE"; echo "printf 'ERROR: this SDK was not fully installed and needs reinstalling\n'" >> $env_setup_script ; exit 1 ; }
 	fi
 	rm -f $target_sdk_dir/ext-sdk-prepare.sh
 	echo done
 }

 SDK_POST_INSTALL_COMMAND_task-populate-sdk-ext = "${sdk_ext_postinst}"

 SDK_POSTPROCESS_COMMAND_prepend_task-populate-sdk-ext = "copy_buildsystem; install_tools; "

 fakeroot python do_populate_sdk_ext() {
     # FIXME hopefully we can remove this restriction at some point, but uninative
     # currently forces this upon us
     if d.getVar('SDK_ARCH', True) != d.getVar('BUILD_ARCH', True):
         bb.fatal('The extensible SDK can currently only be built for the same architecture as the machine being built on - SDK_ARCH is set to %s (likely via setting SDKMACHINE) which is different from the architecture of the build machine (%s). Unable to continue.' % (d.getVar('SDK_ARCH', True), d.getVar('BUILD_ARCH', True)))

     bb.build.exec_func("do_populate_sdk", d)
 }

 def get_sdk_ext_rdepends(d):
     localdata = d.createCopy()
     localdata.appendVar('OVERRIDES', ':task-populate-sdk-ext')
     bb.data.update_data(localdata)
     return localdata.getVarFlag('do_populate_sdk', 'rdepends', True)

 do_populate_sdk_ext[dirs] = "${@d.getVarFlag('do_populate_sdk', 'dirs', False)}"
 do_populate_sdk_ext[depends] += "${@d.getVarFlag('do_populate_sdk', 'depends', False)}"
 do_populate_sdk_ext[rdepends] = "${@get_sdk_ext_rdepends(d)}"
 do_populate_sdk_ext[recrdeptask] += "${@d.getVarFlag('do_populate_sdk', 'recrdeptask', False)}"


 do_populate_sdk_ext[depends] += "buildtools-tarball:do_populate_sdk uninative-tarball:do_populate_sdk"

 do_populate_sdk_ext[rdepends] += "${@' '.join([x + ':do_build' for x in d.getVar('SDK_TARGETS', True).split()])}"
 do_populate_sdk_ext[recrdeptask] += "do_populate_lic do_package_qa do_populate_sysroot do_deploy"

 # Make sure codes change in copy_buildsystem can result in rebuilt
 do_populate_sdk_ext[vardeps] += "copy_buildsystem"

 addtask populate_sdk_ext
	# Extensible SDK

	inherit populate_sdk_base

	# NOTE: normally you cannot use task overrides for this kind of thing - this
	# only works because of get_sdk_ext_rdepends()

	TOOLCHAIN_HOST_TASK_task-populate-sdk-ext = " \
	meta-environment-extsdk-${MACHINE} \
	"

	TOOLCHAIN_TARGET_TASK_task-populate-sdk-ext = ""

	SDK_RDEPENDS_append_task-populate-sdk-ext = " ${SDK_TARGETS}"

	SDK_RELOCATE_AFTER_INSTALL_task-populate-sdk-ext = "0"

	SDK_LOCAL_CONF_WHITELIST ?= ""
	SDK_LOCAL_CONF_BLACKLIST ?= "CONF_VERSION BB_NUMBER_THREADS PARALLEL_MAKE PRSERV_HOST"
	SDK_INHERIT_BLACKLIST ?= "buildhistory icecc"
	SDK_UPDATE_URL ?= ""

	SDK_TARGETS ?= "${PN}"
	OE_INIT_ENV_SCRIPT ?= "oe-init-build-env"

	# The files from COREBASE that you want preserved in the COREBASE copied
	# into the sdk. This allows someone to have their own setup scripts in
	# COREBASE be preserved as well as untracked files.
	COREBASE_FILES ?= " \
	oe-init-build-env \
	oe-init-build-env-memres \
	scripts \
	LICENSE \
	.templateconf \
	"

	SDK_DIR_task-populate-sdk-ext = "${WORKDIR}/sdk-ext"
	B_task-populate-sdk-ext = "${SDK_DIR}"
	TOOLCHAIN_OUTPUTNAME_task-populate-sdk-ext = "${SDK_NAME}-toolchain-ext-${SDK_VERSION}"

	SDK_TITLE_task-populate-sdk-ext = "${@d.getVar('DISTRO_NAME', True) or d.getVar('DISTRO', True)} Extensible SDK"

	python copy_buildsystem () {
	import re
	import oe.copy_buildsystem

	oe_init_env_script = d.getVar('OE_INIT_ENV_SCRIPT', True)

	conf_bbpath = ''
	conf_initpath = ''
	core_meta_subdir = ''

	# Copy in all metadata layers + bitbake (as repositories)
	buildsystem = oe.copy_buildsystem.BuildSystem('extensible SDK', d)
	baseoutpath = d.getVar('SDK_OUTPUT', True) + '/' + d.getVar('SDKPATH', True)
	layers_copied = buildsystem.copy_bitbake_and_layers(baseoutpath + '/layers')

	sdkbblayers = []
	corebase = os.path.basename(d.getVar('COREBASE', True))
	for layer in layers_copied:
	if corebase == os.path.basename(layer):
	conf_bbpath = os.path.join('layers', layer, 'bitbake')
	else:
	sdkbblayers.append(layer)

	for path in os.listdir(baseoutpath + '/layers'):
	relpath = os.path.join('layers', path, oe_init_env_script)
	if os.path.exists(os.path.join(baseoutpath, relpath)):
	conf_initpath = relpath

	relpath = os.path.join('layers', path, 'scripts', 'devtool')
	if os.path.exists(os.path.join(baseoutpath, relpath)):
	scriptrelpath = os.path.dirname(relpath)

	relpath = os.path.join('layers', path, 'meta')
	if os.path.exists(os.path.join(baseoutpath, relpath, 'lib', 'oe')):
	core_meta_subdir = relpath

	d.setVar('oe_init_build_env_path', conf_initpath)
	d.setVar('scriptrelpath', scriptrelpath)

	# Write out config file for devtool
	import ConfigParser
	config = ConfigParser.SafeConfigParser()
	config.add_section('General')
	config.set('General', 'bitbake_subdir', conf_bbpath)
	config.set('General', 'init_path', conf_initpath)
	config.set('General', 'core_meta_subdir', core_meta_subdir)
	config.add_section('SDK')
	config.set('SDK', 'sdk_targets', d.getVar('SDK_TARGETS', True))
	updateurl = d.getVar('SDK_UPDATE_URL', True)
	if updateurl:
	config.set('SDK', 'updateserver', updateurl)
	bb.utils.mkdirhier(os.path.join(baseoutpath, 'conf'))
	with open(os.path.join(baseoutpath, 'conf', 'devtool.conf'), 'w') as f:
	config.write(f)

	# Create a layer for new recipes / appends
	bbpath = d.getVar('BBPATH', True)
	bb.process.run(['devtool', '--bbpath', bbpath, '--basepath', baseoutpath, 'create-workspace', '--create-only', os.path.join(baseoutpath, 'workspace')])

	# Create bblayers.conf
	bb.utils.mkdirhier(baseoutpath + '/conf')
	with open(baseoutpath + '/conf/bblayers.conf', 'w') as f:
	f.write('# WARNING: this configuration has been automatically generated and in\n')
	f.write('# most cases should not be edited. If you need more flexibility than\n')
	f.write('# this configuration provides, it is strongly suggested that you set\n')
	f.write('# up a proper instance of the full build system and use that instead.\n\n')

	f.write('LCONF_VERSION = "%s"\n\n' % d.getVar('LCONF_VERSION', False))
	f.write('BBPATH = "$' + '{TOPDIR}"\n')
	f.write('SDKBASEMETAPATH = "$' + '{TOPDIR}"\n')
	f.write('BBLAYERS := " \\\n')
	for layerrelpath in sdkbblayers:
	f.write(' $' + '{SDKBASEMETAPATH}/layers/%s \\\n' % layerrelpath)
	f.write(' $' + '{SDKBASEMETAPATH}/workspace \\\n')
	f.write(' "\n')

	# Create local.conf
	local_conf_whitelist = (d.getVar('SDK_LOCAL_CONF_WHITELIST', True) or '').split()
	local_conf_blacklist = (d.getVar('SDK_LOCAL_CONF_BLACKLIST', True) or '').split()
	def handle_var(varname, origvalue, op, newlines):
	if varname in local_conf_blacklist or (origvalue.strip().startswith('/') and not varname in local_conf_whitelist):
	newlines.append('# Removed original setting of %s\n' % varname)
	return None, op, 0, True
	else:
	return origvalue, op, 0, True
	varlist = ['[^#=+ ]*']
	builddir = d.getVar('TOPDIR', True)
	with open(builddir + '/conf/local.conf', 'r') as f:
	oldlines = f.readlines()
	(updated, newlines) = bb.utils.edit_metadata(oldlines, varlist, handle_var)

	with open(baseoutpath + '/conf/local.conf', 'w') as f:
	f.write('# WARNING: this configuration has been automatically generated and in\n')
	f.write('# most cases should not be edited. If you need more flexibility than\n')
	f.write('# this configuration provides, it is strongly suggested that you set\n')
	f.write('# up a proper instance of the full build system and use that instead.\n\n')
	for line in newlines:
	if line.strip() and not line.startswith('#'):
	f.write(line)

	f.write('INHERIT += "%s"\n\n' % 'uninative')
	f.write('CONF_VERSION = "%s"\n\n' % d.getVar('CONF_VERSION', False))

	# Some classes are not suitable for SDK, remove them from INHERIT
	f.write('INHERIT_remove = "%s"\n' % d.getVar('SDK_INHERIT_BLACKLIST'))

	# Bypass the default connectivity check if any
	f.write('CONNECTIVITY_CHECK_URIS = ""\n\n')

	# Another hack, but we want the native part of sstate to be kept the same
	# regardless of the host distro
	fixedlsbstring = 'SDK-Fixed'
	f.write('NATIVELSBSTRING_forcevariable = "%s"\n\n' % fixedlsbstring)

	# Ensure locked sstate cache objects are re-used without error
	f.write('SIGGEN_LOCKEDSIGS_CHECK_LEVEL = "none"\n\n')

	# If you define a sdk_extraconf() function then it can contain additional config
	extraconf = (d.getVar('sdk_extraconf', True) or '').strip()
	if extraconf:
	# Strip off any leading / trailing spaces
	for line in extraconf.splitlines():
	f.write(line.strip() + '\n')

	f.write('require conf/locked-sigs.inc\n')

	sigfile = d.getVar('WORKDIR', True) + '/locked-sigs.inc'
	oe.copy_buildsystem.generate_locked_sigs(sigfile, d)

	# Filter the locked signatures file to just the sstate tasks we are interested in
	allowed_tasks = ['do_populate_lic', 'do_populate_sysroot', 'do_packagedata', 'do_package_write_ipk', 'do_package_write_rpm', 'do_package_write_deb', 'do_package_qa', 'do_deploy']
	excluded_targets = d.getVar('SDK_TARGETS', True)
	lockedsigs_pruned = baseoutpath + '/conf/locked-sigs.inc'
	oe.copy_buildsystem.prune_lockedsigs(allowed_tasks,
	excluded_targets,
	sigfile,
	lockedsigs_pruned)

	sstate_out = baseoutpath + '/sstate-cache'
	bb.utils.remove(sstate_out, True)
	oe.copy_buildsystem.create_locked_sstate_cache(lockedsigs_pruned,
	d.getVar('SSTATE_DIR', True),
	sstate_out, d,
	fixedlsbstring)
	}

	def extsdk_get_buildtools_filename(d):
	return '-buildtools-nativesdk-standalone-.sh'

	install_tools() {
	install -d ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}
	lnr ${SDK_OUTPUT}/${SDKPATH}/${scriptrelpath}/devtool ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/devtool
	lnr ${SDK_OUTPUT}/${SDKPATH}/${scriptrelpath}/recipetool ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/recipetool
	touch ${SDK_OUTPUT}/${SDKPATH}/.devtoolbase

	# find latest buildtools-tarball and install it
	buildtools_path=`ls -t1 ${SDK_DEPLOY}/${@extsdk_get_buildtools_filename(d)} \| head -n1`
	install $buildtools_path ${SDK_OUTPUT}/${SDKPATH}

	install ${SDK_DEPLOY}/${BUILD_ARCH}-nativesdk-libc.tar.bz2 ${SDK_OUTPUT}/${SDKPATH}

	install -m 0755 ${COREBASE}/meta/files/ext-sdk-prepare.sh ${SDK_OUTPUT}/${SDKPATH}
	}

	# Since bitbake won't run as root it doesn't make sense to try and install
	# the extensible sdk as root.
	sdk_ext_preinst() {
	if [ "`id -u`" = "0" ]; then
	echo "ERROR: The extensible sdk cannot be installed as root."
	exit 1
	fi
	SDK_EXTENSIBLE="1"
	}
	SDK_PRE_INSTALL_COMMAND_task-populate-sdk-ext = "${sdk_ext_preinst}"

	# FIXME this preparation should be done as part of the SDK construction
	sdk_ext_postinst() {
	printf "\nExtracting buildtools...\n"
	cd $target_sdk_dir
	printf "buildtools\ny" \| ./buildtools-nativesdk-standalone > /dev/null \|\| ( printf 'ERROR: buildtools installation failed\n' ; exit 1 )

	# Make sure when the user sets up the environment, they also get
	# the buildtools-tarball tools in their path.
	env_setup_script="$target_sdk_dir/environment-setup-${REAL_MULTIMACH_TARGET_SYS}"
	echo ". $target_sdk_dir/buildtools/environment-setup*" >> $env_setup_script

	# Allow bitbake environment setup to be ran as part of this sdk.
	echo "export OE_SKIP_SDK_CHECK=1" >> $env_setup_script

	# A bit of another hack, but we need this in the path only for devtool
	# so put it at the end of $PATH.
	echo "export PATH=\$PATH:$target_sdk_dir/sysroots/${SDK_SYS}/${bindir_nativesdk}" >> $env_setup_script

	echo "printf 'SDK environment now set up; additionally you may now run devtool to perform development tasks.\nRun devtool --help for further details.\n'" >> $env_setup_script

	# Warn if trying to use external bitbake and the ext SDK together
	echo "(which bitbake > /dev/null 2>&1 && echo 'WARNING: attempting to use the extensible SDK in an environment set up to run bitbake - this may lead to unexpected results. Please source this script in a new shell session instead.') \|\| true" >> $env_setup_script

	# For now this is where uninative.bbclass expects the tarball
	mv -nativesdk-libc.tar. $target_sdk_dir/`dirname ${oe_init_build_env_path}`

	if [ "$prepare_buildsystem" != "no" ]; then
	printf "Preparing build system...\n"
	# dash which is /bin/sh on Ubuntu will not preserve the
	# current working directory when first ran, nor will it set $1 when
	# sourcing a script. That is why this has to look so ugly.
	LOGFILE="$target_sdk_dir/preparing_build_system.log"
	sh -c ". buildtools/environment-setup* > $LOGFILE && cd $target_sdk_dir/`dirname ${oe_init_build_env_path}` && set $target_sdk_dir && . $target_sdk_dir/${oe_init_build_env_path} $target_sdk_dir >> $LOGFILE && $target_sdk_dir/ext-sdk-prepare.sh $target_sdk_dir '${SDK_TARGETS}' >> $LOGFILE 2>&1" \|\| { echo "ERROR: SDK preparation failed: see $LOGFILE"; echo "printf 'ERROR: this SDK was not fully installed and needs reinstalling\n'" >> $env_setup_script ; exit 1 ; }
	fi
	rm -f $target_sdk_dir/ext-sdk-prepare.sh
	echo done
	}

	SDK_POST_INSTALL_COMMAND_task-populate-sdk-ext = "${sdk_ext_postinst}"

	SDK_POSTPROCESS_COMMAND_prepend_task-populate-sdk-ext = "copy_buildsystem; install_tools; "

	fakeroot python do_populate_sdk_ext() {
	# FIXME hopefully we can remove this restriction at some point, but uninative
	# currently forces this upon us
	if d.getVar('SDK_ARCH', True) != d.getVar('BUILD_ARCH', True):
	bb.fatal('The extensible SDK can currently only be built for the same architecture as the machine being built on - SDK_ARCH is set to %s (likely via setting SDKMACHINE) which is different from the architecture of the build machine (%s). Unable to continue.' % (d.getVar('SDK_ARCH', True), d.getVar('BUILD_ARCH', True)))

	bb.build.exec_func("do_populate_sdk", d)
	}

	def get_sdk_ext_rdepends(d):
	localdata = d.createCopy()
	localdata.appendVar('OVERRIDES', ':task-populate-sdk-ext')
	bb.data.update_data(localdata)
	return localdata.getVarFlag('do_populate_sdk', 'rdepends', True)

	do_populate_sdk_ext[dirs] = "${@d.getVarFlag('do_populate_sdk', 'dirs', False)}"
	do_populate_sdk_ext[depends] += "${@d.getVarFlag('do_populate_sdk', 'depends', False)}"
	do_populate_sdk_ext[rdepends] = "${@get_sdk_ext_rdepends(d)}"
	do_populate_sdk_ext[recrdeptask] += "${@d.getVarFlag('do_populate_sdk', 'recrdeptask', False)}"


	do_populate_sdk_ext[depends] += "buildtools-tarball:do_populate_sdk uninative-tarball:do_populate_sdk"

	do_populate_sdk_ext[rdepends] += "${@' '.join([x + ':do_build' for x in d.getVar('SDK_TARGETS', True).split()])}"
	do_populate_sdk_ext[recrdeptask] += "do_populate_lic do_package_qa do_populate_sysroot do_deploy"

	# Make sure codes change in copy_buildsystem can result in rebuilt
	do_populate_sdk_ext[vardeps] += "copy_buildsystem"

	addtask populate_sdk_ext