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# Instructions to make this work:
#
# bitbake <targets>
# bitbake <targets> -S none
# bitbake meta-newsdk
#
# This will produce an installable SDK containing a copy of the build
# system whose output is locked at the point it was generated.
#
SUMMARY = "New SDK"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=4d92cd373abda3937c2bc47fbc49d690 \
file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
inherit populate_sdk
SRC_URI = "file://sdktool.py"
# Parts of this borrowed from buildtools-tarball
TOOLCHAIN_HOST_TASK = " \
nativesdk-qemu \
nativesdk-qemu-helper \
nativesdk-pseudo \
\
nativesdk-python-core \
nativesdk-python-textutils \
nativesdk-python-sqlite3 \
nativesdk-python-pickle \
nativesdk-python-logging \
nativesdk-python-elementtree \
nativesdk-python-curses \
nativesdk-python-compile \
nativesdk-python-compiler \
nativesdk-python-fcntl \
nativesdk-python-shell \
nativesdk-python-misc \
nativesdk-python-multiprocessing \
nativesdk-python-subprocess \
nativesdk-python-xmlrpc \
nativesdk-python-netclient \
nativesdk-python-netserver \
nativesdk-python-distutils \
nativesdk-python-unixadmin \
nativesdk-python-compression \
nativesdk-python-json \
nativesdk-python-unittest \
nativesdk-python-mmap \
nativesdk-python-difflib \
nativesdk-python-pprint \
nativesdk-python-git \
nativesdk-python-pkgutil \
nativesdk-ncurses-terminfo-base \
nativesdk-chrpath \
nativesdk-tar \
nativesdk-git \
nativesdk-pigz \
nativesdk-make \
nativesdk-wget \
"
TOOLCHAIN_TARGET_TASK = ""
SDK_META_CONF_WHITELIST ?= "MACHINE DISTRO PACKAGE_CLASSES"
SDK_TARGETS ?= "core-image-minimal"
python copy_buildsystem () {
import re
layerdirs = d.getVar('BBLAYERS', True).split()
res = re.search('([^:]*/bitbake/bin)', d.getVar('PATH', True))
if res:
bitbakepath = os.path.dirname(res.group(1))
layerdirs.append(bitbakepath)
else:
bb.fatal('Unable to find bitbake path!')
# Copy in all metadata layers + bitbake (as repositories)
baseoutpath = d.getVar('SDK_OUTPUT', True) + '/' + d.getVar('SDKPATH', True)
bb.utils.mkdirhier(baseoutpath + '/layers')
sdkbblayers = []
for layer in layerdirs:
stdout, stderr = bb.process.run("git rev-parse --show-toplevel", cwd=layer)
toplevel = stdout.strip()
sdkdestpath = baseoutpath + '/layers/' + os.path.basename(toplevel)
if os.path.exists(sdkdestpath):
bb.note("Skipping layer %s, already handled" % layer)
else:
bb.note("Cloning %s for %s..." % (toplevel, layer))
bb.process.run("git clone %s %s" % (toplevel, sdkdestpath))
bb.process.run("git gc --auto", cwd=sdkdestpath)
if layer != bitbakepath:
layerrelpath = os.path.relpath(layer, os.path.dirname(toplevel))
sdkbblayers.append(layerrelpath)
# Create a layer for new recipes / appends
bb.utils.mkdirhier(baseoutpath + '/workspace/conf')
with open(baseoutpath + '/workspace/conf/layer.conf', 'w') as f:
f.write('BBPATH =. "$' + '{LAYERDIR}:"\n')
f.write('BBFILES += "$' + '{LAYERDIR}/*/*.bb \\\n')
f.write(' $' + '{LAYERDIR}/*/*.bbappend"\n')
f.write('BBFILE_COLLECTIONS += "sdkworkspace"\n')
f.write('BBFILE_PATTERN_sdkworkspace = "^$' + '{LAYERDIR}/"\n')
f.write('BBFILE_PRIORITY_sdkworkspace = "99"\n')
# Create bblayers.conf
bb.utils.mkdirhier(baseoutpath + '/conf')
with open(baseoutpath + '/conf/bblayers.conf', 'w') as f:
f.write('LCONF_VERSION = "%s"\n\n' % d.getVar('LCONF_VERSION'))
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
with open(baseoutpath + '/conf/local.conf', 'w') as f:
f.write('CONF_VERSION = "%s"\n\n' % d.getVar('CONF_VERSION'))
# This is a bit of a hack, but we really don't want these dependencies
# (we're including them in the SDK as nativesdk- versions instead)
f.write('POKYQEMUDEPS_forcevariable = ""\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)
for varname in d.getVar('SDK_META_CONF_WHITELIST', True).split():
f.write('%s = "%s"\n' % (varname, d.getVar(varname, True)))
f.write('\nINHERIT += "externalsrc"\n\n')
f.write('require conf/locked-sigs.inc\n')
f.write('require conf/work-config.inc\n')
# 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', 'do_package_qa', 'do_deploy']
inputfile = d.getVar('TOPDIR', True) + '/locked-sigs.inc'
with open(inputfile, 'r') as infile:
with open(baseoutpath + '/conf/locked-sigs.inc', 'w') as f:
invalue = False
for line in infile:
if invalue:
if line.endswith('\\\n'):
for task in allowed_tasks:
if task in line:
f.write(line)
break
else:
f.write(line)
break
elif line.startswith('SIGGEN_LOCKEDSIGS'):
invalue = True
f.write(line)
# Create a dummy config file for additional settings
with open(baseoutpath + '/conf/work-config.inc', 'w') as f:
pass
# Create a filtered sstate cache containing only the items in the filtered list
bb.utils.mkdirhier(baseoutpath + '/sstate-cache')
bb.note('Generating sstate-cache...')
bb.process.run("gen-lockedsig-cache %s %s %s" % (baseoutpath + '/conf/locked-sigs.inc', d.getVar('SSTATE_DIR', True), baseoutpath + '/sstate-cache'))
os.rename(baseoutpath + '/sstate-cache/' + d.getVar('NATIVELSBSTRING', True), baseoutpath + '/sstate-cache/' + fixedlsbstring)
}
install_sdktool() {
install -d ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}
install -m 0755 ${WORKDIR}/sdktool.py ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/sdktool
}
toolchain_create_sdk_env_script () {
# Create minimal environment setup script
script=${SDK_OUTPUT}/${SDKPATH}/environment-setup-newsdk
rm -f $script
touch $script
EXTRAPATH=""
for i in ${CANADIANEXTRAOS}; do
EXTRAPATH="$EXTRAPATH:${SDKPATHNATIVE}${bindir_nativesdk}/${TARGET_ARCH}${TARGET_VENDOR}-$i"
done
echo 'export PATH=${SDKPATHNATIVE}${bindir_nativesdk}:${SDKPATHNATIVE}${bindir_nativesdk}/${TARGET_SYS}'$EXTRAPATH':$PATH' >> $script
echo 'export OECORE_NATIVE_SYSROOT="${SDKPATHNATIVE}"' >> $script
echo 'export PYTHONHOME=${SDKPATHNATIVE}${prefix_nativesdk}' >> $script
}
# FIXME this preparation should be done as part of the SDK construction
sdk_postinst() {
echo done
printf "Preparing build system..."
cd $target_sdk_dir
sh -c ". layers/poky/oe-init-build-env . > /dev/null && bitbake ${SDK_TARGETS} > /dev/null"
}
SDK_POST_INSTALL_COMMAND = "${sdk_postinst}"
SDK_POSTPROCESS_COMMAND_prepend = "copy_buildsystem; install_sdktool; "
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