# remove tasks that modify the source tree in case externalsrc is inherited SRCTREECOVEREDTASKS += "do_kernel_configme do_validate_branches do_kernel_configcheck do_kernel_checkout do_fetch do_unpack do_patch" PATCH_GIT_USER_EMAIL ?= "kernel-yocto@oe" PATCH_GIT_USER_NAME ?= "OpenEmbedded" # returns local (absolute) path names for all valid patches in the # src_uri def find_patches(d): patches = src_patches(d) patch_list=[] for p in patches: _, _, local, _, _, _ = bb.fetch.decodeurl(p) patch_list.append(local) return patch_list # returns all the elements from the src uri that are .scc files def find_sccs(d): sources=src_patches(d, True) sources_list=[] for s in sources: base, ext = os.path.splitext(os.path.basename(s)) if ext and ext in [".scc", ".cfg"]: sources_list.append(s) elif base and base in 'defconfig': sources_list.append(s) return sources_list # check the SRC_URI for "kmeta" type'd git repositories. Return the name of # the repository as it will be found in WORKDIR def find_kernel_feature_dirs(d): feature_dirs=[] fetch = bb.fetch2.Fetch([], d) for url in fetch.urls: urldata = fetch.ud[url] parm = urldata.parm type="" if "type" in parm: type = parm["type"] if "destsuffix" in parm: destdir = parm["destsuffix"] if type == "kmeta": feature_dirs.append(destdir) return feature_dirs # find the master/machine source branch. In the same way that the fetcher proceses # git repositories in the SRC_URI we take the first repo found, first branch. def get_machine_branch(d, default): fetch = bb.fetch2.Fetch([], d) for url in fetch.urls: urldata = fetch.ud[url] parm = urldata.parm if "branch" in parm: branches = urldata.parm.get("branch").split(',') btype = urldata.parm.get("type") if btype != "kmeta": return branches[0] return default do_kernel_metadata() { set +e cd ${S} export KMETA=${KMETA} # if kernel tools are available in-tree, they are preferred # and are placed on the path before any external tools. Unless # the external tools flag is set, in that case we do nothing. if [ -f "${S}/scripts/util/configme" ]; then if [ -z "${EXTERNAL_KERNEL_TOOLS}" ]; then PATH=${S}/scripts/util:${PATH} fi fi machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}" machine_srcrev="${SRCREV_machine}" if [ -z "${machine_srcrev}" ]; then # fallback to SRCREV if a non machine_meta tree is being built machine_srcrev="${SRCREV}" fi # In a similar manner to the kernel itself: # # defconfig: $(obj)/conf # ifeq ($(KBUILD_DEFCONFIG),) # $< --defconfig $(Kconfig) # else # @echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" # $(Q)$< --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) # endif # # If a defconfig is specified via the KBUILD_DEFCONFIG variable, we copy it # from the source tree, into a common location and normalized "defconfig" name, # where the rest of the process will include and incoroporate it into the build # # If the fetcher has already placed a defconfig in WORKDIR (from the SRC_URI), # we don't overwrite it, but instead warn the user that SRC_URI defconfigs take # precendence. # if [ -n "${KBUILD_DEFCONFIG}" ]; then if [ -f "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}" ]; then if [ -f "${WORKDIR}/defconfig" ]; then # If the two defconfig's are different, warn that we didn't overwrite the # one already placed in WORKDIR by the fetcher. cmp "${WORKDIR}/defconfig" "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}" if [ $? -ne 0 ]; then bbwarn "defconfig detected in WORKDIR. ${KBUILD_DEFCONFIG} skipped" else cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig fi else cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig fi sccs="${WORKDIR}/defconfig" else bbfatal "A KBUILD_DEFCONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree" fi fi sccs_from_src_uri="${@" ".join(find_sccs(d))}" patches="${@" ".join(find_patches(d))}" feat_dirs="${@" ".join(find_kernel_feature_dirs(d))}" # a quick check to make sure we don't have duplicate defconfigs # If there's a defconfig in the SRC_URI, did we also have one from # the KBUILD_DEFCONFIG processing above ? if [ -n "$sccs" ]; then # we did have a defconfig from above. remove any that might be in the src_uri sccs_from_src_uri=$(echo $sccs_from_src_uri | awk '{ if ($0!="defconfig") { print $0 } }' RS=' ') fi sccs="$sccs $sccs_from_src_uri" # check for feature directories/repos/branches that were part of the # SRC_URI. If they were supplied, we convert them into include directives # for the update part of the process for f in ${feat_dirs}; do if [ -d "${WORKDIR}/$f/meta" ]; then includes="$includes -I${WORKDIR}/$f/kernel-meta" elif [ -d "${WORKDIR}/$f" ]; then includes="$includes -I${WORKDIR}/$f" elif [ -d "${WORKDIR}/../oe-local-files/$f" ]; then includes="$includes -I${WORKDIR}/../oe-local-files/$f" fi done for s in ${sccs} ${patches}; do sdir=$(dirname $s) includes="$includes -I${sdir}" # if a SRC_URI passed patch or .scc has a subdir of "kernel-meta", # then we add it to the search path if [ -d "${sdir}/kernel-meta" ]; then includes="$includes -I${sdir}/kernel-meta" fi done # expand kernel features into their full path equivalents bsp_definition=$(spp ${includes} --find -DKMACHINE=${KMACHINE} -DKTYPE=${LINUX_KERNEL_TYPE}) if [ -z "$bsp_definition" ]; then echo "$sccs" | grep -q defconfig if [ $? -ne 0 ]; then bbfatal_log "Could not locate BSP definition for ${KMACHINE}/${LINUX_KERNEL_TYPE} and no defconfig was provided" fi fi meta_dir=$(kgit --meta) # run1: pull all the configuration fragments, no matter where they come from elements="`echo -n ${bsp_definition} ${sccs} ${patches} ${KERNEL_FEATURES}`" if [ -n "${elements}" ]; then echo "${bsp_definition}" > ${S}/${meta_dir}/bsp_definition scc --force -o ${S}/${meta_dir}:cfg,merge,meta ${includes} ${bsp_definition} ${sccs} ${patches} ${KERNEL_FEATURES} if [ $? -ne 0 ]; then bbfatal_log "Could not generate configuration queue for ${KMACHINE}." fi fi # run2: only generate patches for elements that have been passed on the SRC_URI elements="`echo -n ${sccs} ${patches} ${KERNEL_FEATURES}`" if [ -n "${elements}" ]; then scc --force -o ${S}/${meta_dir}:patch --cmds patch ${includes} ${sccs} ${patches} ${KERNEL_FEATURES} if [ $? -ne 0 ]; then bbfatal_log "Could not generate configuration queue for ${KMACHINE}." fi fi } do_patch() { set +e cd ${S} check_git_config meta_dir=$(kgit --meta) (cd ${meta_dir}; ln -sf patch.queue series) if [ -f "${meta_dir}/series" ]; then kgit-s2q --gen -v --patches .kernel-meta/ if [ $? -ne 0 ]; then bberror "Could not apply patches for ${KMACHINE}." bbfatal_log "Patch failures can be resolved in the linux source directory ${S})" fi fi if [ -f "${meta_dir}/merge.queue" ]; then # we need to merge all these branches for b in $(cat ${meta_dir}/merge.queue); do git show-ref --verify --quiet refs/heads/${b} if [ $? -eq 0 ]; then bbnote "Merging branch ${b}" git merge -q --no-ff -m "Merge branch ${b}" ${b} else bbfatal "branch ${b} does not exist, cannot merge" fi done fi } do_kernel_checkout() { set +e source_dir=`echo ${S} | sed 's%/$%%'` source_workdir="${WORKDIR}/git" if [ -d "${WORKDIR}/git/" ]; then # case: git repository # if S is WORKDIR/git, then we shouldn't be moving or deleting the tree. if [ "${source_dir}" != "${source_workdir}" ]; then if [ -d "${source_workdir}/.git" ]; then # regular git repository with .git rm -rf ${S} mv ${WORKDIR}/git ${S} else # create source for bare cloned git repository git clone ${WORKDIR}/git ${S} rm -rf ${WORKDIR}/git fi fi cd ${S} else # case: we have no git repository at all. # To support low bandwidth options for building the kernel, we'll just # convert the tree to a git repo and let the rest of the process work unchanged # if ${S} hasn't been set to the proper subdirectory a default of "linux" is # used, but we can't initialize that empty directory. So check it and throw a # clear error cd ${S} if [ ! -f "Makefile" ]; then bberror "S is not set to the linux source directory. Check " bbfatal "the recipe and set S to the proper extracted subdirectory" fi rm -f .gitignore git init check_git_config git add . git commit -q -m "baseline commit: creating repo for ${PN}-${PV}" git clean -d -f fi # convert any remote branches to local tracking ones for i in `git branch -a --no-color | grep remotes | grep -v HEAD`; do b=`echo $i | cut -d' ' -f2 | sed 's%remotes/origin/%%'`; git show-ref --quiet --verify -- "refs/heads/$b" if [ $? -ne 0 ]; then git branch $b $i > /dev/null fi done # Create a working tree copy of the kernel by checking out a branch machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}" # checkout and clobber any unimportant files git checkout -f ${machine_branch} } do_kernel_checkout[dirs] = "${S}" addtask kernel_checkout before do_kernel_metadata after do_unpack addtask kernel_metadata after do_validate_branches do_unpack before do_patch do_kernel_metadata[depends] = "kern-tools-native:do_populate_sysroot" do_validate_branches[depends] = "kern-tools-native:do_populate_sysroot" do_kernel_configme[depends] += "virtual/${TARGET_PREFIX}binutils:do_populate_sysroot" do_kernel_configme[depends] += "virtual/${TARGET_PREFIX}gcc:do_populate_sysroot" do_kernel_configme[depends] += "bc-native:do_populate_sysroot bison-native:do_populate_sysroot" do_kernel_configme[dirs] += "${S} ${B}" do_kernel_configme() { set +e # translate the kconfig_mode into something that merge_config.sh # understands case ${KCONFIG_MODE} in *allnoconfig) config_flags="-n" ;; *alldefconfig) config_flags="" ;; *) if [ -f ${WORKDIR}/defconfig ]; then config_flags="-n" fi ;; esac cd ${S} meta_dir=$(kgit --meta) configs="$(scc --configs -o ${meta_dir})" if [ $? -ne 0 ]; then bberror "${configs}" bbfatal_log "Could not find configuration queue (${meta_dir}/config.queue)" fi CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}" CC="${KERNEL_CC}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1 if [ $? -ne 0 ]; then bbfatal_log "Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}" fi echo "# Global settings from linux recipe" >> ${B}/.config echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config } addtask kernel_configme before do_configure after do_patch python do_kernel_configcheck() { import re, string, sys, subprocess # if KMETA isn't set globally by a recipe using this routine, we need to # set the default to 'meta'. Otherwise, kconf_check is not passed a valid # meta-series for processing kmeta = d.getVar("KMETA") or "meta" if not os.path.exists(kmeta): kmeta = "." + kmeta s = d.getVar('S') env = os.environ.copy() env['PATH'] = "%s:%s%s" % (d.getVar('PATH'), s, "/scripts/util/") try: configs = subprocess.check_output(['scc', '--configs', '-o', s + '/.kernel-meta'], env=env).decode('utf-8') except subprocess.CalledProcessError: bb.fatal( "Cannot gather config fragments for audit: %s" % configs) try: subprocess.check_call(['kconf_check', '--report', '-o', '%s/%s/cfg' % (s, kmeta), d.getVar('B') + '/.config', s, configs], cwd=s, env=env) except subprocess.CalledProcessError: # The configuration gathering can return different exit codes, but # we interpret them based on the KCONF_AUDIT_LEVEL variable, so we catch # everything here, and let the run continue. pass config_check_visibility = int(d.getVar("KCONF_AUDIT_LEVEL") or 0) # if config check visibility is non-zero, report dropped configuration values mismatch_file = d.expand("${S}/%s/cfg/mismatch.txt" % kmeta) if os.path.exists(mismatch_file): if config_check_visibility: with open (mismatch_file, "r") as myfile: results = myfile.read() bb.warn( "[kernel config]: specified values did not make it into the kernel's final configuration:\n\n%s" % results) } # Ensure that the branches (BSP and meta) are on the locations specified by # their SRCREV values. If they are NOT on the right commits, the branches # are corrected to the proper commit. do_validate_branches() { set +e cd ${S} machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}" machine_srcrev="${SRCREV_machine}" # if SRCREV is AUTOREV it shows up as AUTOINC there's nothing to # check and we can exit early if [ "${machine_srcrev}" = "AUTOINC" ]; then bbnote "SRCREV validation is not required for AUTOREV" elif [ "${machine_srcrev}" = "" ]; then if [ "${SRCREV}" != "AUTOINC" ] && [ "${SRCREV}" != "INVALID" ]; then # SRCREV_machine_ was not set. This means that a custom recipe # that doesn't use the SRCREV_FORMAT "machine_meta" is being built. In # this case, we need to reset to the give SRCREV before heading to patching bbnote "custom recipe is being built, forcing SRCREV to ${SRCREV}" force_srcrev="${SRCREV}" fi else git cat-file -t ${machine_srcrev} > /dev/null if [ $? -ne 0 ]; then bberror "${machine_srcrev} is not a valid commit ID." bbfatal_log "The kernel source tree may be out of sync" fi force_srcrev=${machine_srcrev} fi git checkout -q -f ${machine_branch} if [ -n "${force_srcrev}" ]; then # see if the branch we are about to patch has been properly reset to the defined # SRCREV .. if not, we reset it. branch_head=`git rev-parse HEAD` if [ "${force_srcrev}" != "${branch_head}" ]; then current_branch=`git rev-parse --abbrev-ref HEAD` git branch "$current_branch-orig" git reset --hard ${force_srcrev} # We've checked out HEAD, make sure we cleanup kgit-s2q fence post check # so the patches are applied as expected otherwise no patching # would be done in some corner cases. kgit-s2q --clean fi fi } OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT" KBUILD_OUTPUT = "${B}" python () { # If diffconfig is available, ensure it runs after kernel_configme if 'do_diffconfig' in d: bb.build.addtask('do_diffconfig', None, 'do_kernel_configme', d) }