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