# 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_shared_workdir do_fetch do_unpack do_patch" # 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" fi else cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig sccs="${WORKDIR}/defconfig" fi else bbfatal "A KBUILD_DECONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree" fi fi sccs="$sccs ${@" ".join(find_sccs(d))}" patches="${@" ".join(find_patches(d))}" feat_dirs="${@" ".join(find_kernel_feature_dirs(d))}" # add any explicitly referenced features onto the end of the feature # list that is passed to the kernel build scripts. if [ -n "${KERNEL_FEATURES}" ]; then for feat in ${KERNEL_FEATURES}; do addon_features="$addon_features --feature $feat" done fi # check for feature directories/repos/branches that were part of the # SRC_URI. If they were supplied, we convert them into include directives # for the update part of the process if [ -n "${feat_dirs}" ]; then for f in ${feat_dirs}; do if [ -d "${WORKDIR}/$f/meta" ]; then includes="$includes -I${WORKDIR}/$f/meta" elif [ -d "${WORKDIR}/$f" ]; then includes="$includes -I${WORKDIR}/$f" fi done fi # updates or generates the target description updateme ${updateme_flags} -DKDESC=${KMACHINE}:${LINUX_KERNEL_TYPE} \ ${includes} ${addon_features} ${ARCH} ${KMACHINE} ${sccs} ${patches} if [ $? -ne 0 ]; then bbfatal_log "Could not update ${machine_branch}" fi } do_patch() { cd ${S} # executes and modifies the source tree as required patchme ${KMACHINE} if [ $? -ne 0 ]; then bberror "Could not apply patches for ${KMACHINE}." bbfatal_log "Patch failures can be resolved in the linux source directory ${S})" fi # check to see if the specified SRCREV is reachable from the final branch. # if it wasn't something wrong has happened, and we should error. machine_srcrev="${SRCREV_machine}" if [ -z "${machine_srcrev}" ]; then # fallback to SRCREV if a non machine_meta tree is being built machine_srcrev="${SRCREV}" # if SRCREV cannot be reached something is wrong. if [ -z "${machine_srcrev}" ]; then bbfatal "Neither SRCREV_machine or SRCREV was specified!" fi fi if [ "${machine_srcrev}" != "AUTOINC" ]; then if ! [ "$(git rev-parse --verify ${machine_srcrev}~0)" = "$(git merge-base ${machine_srcrev} HEAD)" ]; then bberror "SRCREV ${machine_srcrev} was specified, but is not reachable" bbfatal "Check the BSP description for incorrect branch selection, or other errors." fi 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 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_kernel_configme[dirs] += "${S} ${B}" do_kernel_configme() { bbnote "kernel configme" export KMETA=${KMETA} if [ -n "${KCONFIG_MODE}" ]; then configmeflags=${KCONFIG_MODE} else # If a defconfig was passed, use =n as the baseline, which is achieved # via --allnoconfig if [ -f ${WORKDIR}/defconfig ]; then configmeflags="--allnoconfig" fi fi cd ${S} PATH=${PATH}:${S}/scripts/util configme ${configmeflags} --reconfig --output ${B} ${LINUX_KERNEL_TYPE} ${KMACHINE} 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}\" >> ${B}/.config } addtask kernel_configme before do_configure after do_patch python do_kernel_configcheck() { import re, string, sys # if KMETA isn't set globally by a recipe using this routine, we need to # set the default to 'meta'. Otherwise, kconf_check is not passed a valid # meta-series for processing kmeta = d.getVar( "KMETA", True ) or "meta" if not os.path.exists(kmeta): kmeta = "." + kmeta pathprefix = "export PATH=%s:%s; " % (d.getVar('PATH', True), "${S}/scripts/util/") cmd = d.expand("cd ${S}; kconf_check -config %s/meta-series ${S} ${B}" % kmeta) ret, result = oe.utils.getstatusoutput("%s%s" % (pathprefix, cmd)) config_check_visibility = int(d.getVar( "KCONF_AUDIT_LEVEL", True ) or 0) bsp_check_visibility = int(d.getVar( "KCONF_BSP_AUDIT_LEVEL", True ) or 0) # if config check visibility is non-zero, report dropped configuration values mismatch_file = "${S}/" + kmeta + "/" + "mismatch.cfg" 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) # if config check visibility is level 2 or higher, report non-hardware options nonhw_file = "${S}/" + kmeta + "/" + "nonhw_report.cfg" if os.path.exists(nonhw_file): if config_check_visibility > 1: with open (nonhw_file, "r") as myfile: results = myfile.read() bb.warn( "[kernel config]: BSP specified non-hw configuration:\n\n%s" % results) bsp_desc = "${S}/" + kmeta + "/" + "top_tgt" if os.path.exists(bsp_desc) and bsp_check_visibility > 1: with open (bsp_desc, "r") as myfile: bsp_tgt = myfile.read() m = re.match("^(.*)scratch.obj(.*)$", bsp_tgt) if not m is None: bb.warn( "[kernel]: An auto generated BSP description was used, this normally indicates a misconfiguration.\n" + "Check that your machine (%s) has an associated kernel description." % "${MACHINE}" ) } # 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_<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 ${force_srcrev} fi fi } OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT" KBUILD_OUTPUT = "${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) }