347 lines
11 KiB
Plaintext
347 lines
11 KiB
Plaintext
S = "${WORKDIR}/linux"
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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.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'):
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sources_list.append(s)
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return sources_list
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# this is different from find_patches, in that it returns a colon separated
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# list of <patches>:<subdir> instead of just a list of patches
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def find_urls(d):
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patches=src_patches(d)
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fetch = bb.fetch2.Fetch([], d)
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patch_list=[]
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for p in patches:
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_, _, local, _, _, _ = bb.decodeurl(p)
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for url in fetch.urls:
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urldata = fetch.ud[url]
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if urldata.localpath == local:
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patch_list.append(local+':'+urldata.path)
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return patch_list
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do_patch() {
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cd ${S}
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if [ -f ${WORKDIR}/defconfig ]; then
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defconfig=${WORKDIR}/defconfig
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fi
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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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kbranch=${KBRANCH}
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if [ -n "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ]; then
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# switch from a generic to a specific branch
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kbranch=${YOCTO_KERNEL_EXTERNAL_BRANCH}
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fi
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# simply ensures that a branch of the right name has been created
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if [ -n "${YOCTO_KERNEL_META_DATA}" ]; then
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createme_flags="--disable-meta-gen"
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fi
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createme ${createme_flags} ${ARCH} ${kbranch} ${defconfig}
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if [ $? -ne 0 ]; then
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echo "ERROR. Could not create ${kbranch}"
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exit 1
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fi
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sccs="${@" ".join(find_sccs(d))}"
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patches_and_dirs="${@" ".join(find_urls(d))}"
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# This loops through all patches, and looks for directories that do
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# not already have feature descriptions. If a directory doesn't have
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# a feature description, we switch to the ${WORKDIR} variant of the
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# feature (so we can write to it) and generate a feature for those
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# patches. The generated feature will respect the patch order.
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#
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# By leaving source patch directories that already have .scc files
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# as-is it means that a SRC_URI can only contain a .scc file, and all
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# patches that the .scc references will be picked up, without having
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# to be repeated on the SRC_URI line .. which is more intutive
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set +e
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patch_dirs=
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for pp in ${patches_and_dirs}; do
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p=`echo $pp | cut -f1 -d:`
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wp=`echo $pp | cut -f2 -d:`
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pdir=`dirname ${p}`
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pname=`basename ${p}`
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scc=`find ${pdir} -maxdepth 1 -name '*.scc'`
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if [ -z "${scc}" ]; then
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# there is no scc file. We need to switch to someplace that we know
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# we can create content (the workdir)
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workdir_subdir=`dirname ${wp}`
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suggested_dir="${WORKDIR}/${workdir_subdir}"
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echo ${gen_feature_dirs} | grep -q ${suggested_dir}
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if [ $? -ne 0 ]; then
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gen_feature_dirs="${gen_feature_dirs} ${suggested_dir}"
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fi
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# we call the file *.scc_tmp, so the test above will continue to find
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# that patches from a common subdirectory don't have a scc file and
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# they'll be placed in order, into this file. We'll rename it later.
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gen_feature_name="gen_`echo ${workdir_subdir} | sed 's%/%%g'`_desc.scc_tmp"
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echo "patch ${pname}" >> ${WORKDIR}/${workdir_subdir}/${gen_feature_name}
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else
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suggested_dir="${pdir}"
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fi
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echo ${patch_dirs} | grep -q ${suggested_dir}
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if [ $? -ne 0 ]; then
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patch_dirs="${patch_dirs} ${suggested_dir}"
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fi
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done
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# look for any found scc files, and ensure they are added to the list
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# of directories passsed to updateme
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for s in ${sccs}; do
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sdir=`dirname ${s}`
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echo ${patch_dirs} | grep -q ${sdir}
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if [ $? -ne 0 ]; then
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patch_dirs="${patch_dirs} ${sdir}"
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fi
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done
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# go through the patch directories and look for any scc feature files
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# that were constructed above. If one is found, rename it to ".scc" so
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# the kernel patching can see it.
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for pdir in ${patch_dirs}; do
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scc=`find ${pdir} -maxdepth 1 -name '*.scc_tmp'`
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if [ -n "${scc}" ]; then
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new_scc=`echo ${scc} | sed 's/_tmp//'`
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mv -f ${scc} ${new_scc}
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fi
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done
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patch_dirs="${patch_dirs} ${WORKDIR}"
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# add any explicitly referenced features onto the end of the feature
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# list that is passed to the kernel build scripts.
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if [ -n "${KERNEL_FEATURES}" ]; then
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for feat in ${KERNEL_FEATURES}; do
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addon_features="$addon_features --feature $feat"
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done
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fi
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# updates or generates the target description
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updateme --branch ${kbranch} -DKDESC=${KMACHINE}:${LINUX_KERNEL_TYPE} \
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${addon_features} ${ARCH} ${KMACHINE} ${patch_dirs}
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if [ $? -ne 0 ]; then
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echo "ERROR. Could not update ${kbranch}"
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exit 1
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fi
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# executes and modifies the source tree as required
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patchme ${kbranch}
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if [ $? -ne 0 ]; then
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echo "ERROR. Could not modify ${kbranch}"
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exit 1
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fi
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}
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do_kernel_checkout() {
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set +e
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# A linux yocto SRC_URI should use the bareclone option. That
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# ensures that all the branches are available in the WORKDIR version
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# of the repository. If it wasn't passed, we should detect it, and put
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# out a useful error message
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if [ -d "${WORKDIR}/git/" ] && [ -d "${WORKDIR}/git/.git" ]; then
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# we build out of {S}, so ensure that ${S} is clean and present
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rm -rf ${S}
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mkdir -p ${S}/.git
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echo "WARNING. ${WORKDIR}/git is not a bare clone."
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echo "Ensure that the SRC_URI includes the 'bareclone=1' option."
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# we can fix up the kernel repository, but at the least the meta
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# branch must be present. The machine branch may be created later.
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mv ${WORKDIR}/git/.git ${S}
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rm -rf ${WORKDIR}/git/
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cd ${S}
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if [ -n "${YOCTO_KERNEL_META_DATA}" ] && [ -n "${KMETA}" ]; then
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git branch -a | grep -q ${KMETA}
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if [ $? -ne 0 ]; then
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echo "ERROR. The branch '${KMETA}' is required and was not"
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echo "found. Ensure that the SRC_URI points to a valid linux-yocto"
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echo "kernel repository"
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exit 1
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fi
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fi
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if [ -z "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ] && [ -n "${KBRANCH}" ] ; then
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git branch -a | grep -q ${KBRANCH}
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if [ $? -ne 0 ]; then
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echo "ERROR. The branch '${KBRANCH}' is required and was not"
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echo "found. Ensure that the SRC_URI points to a valid linux-yocto"
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echo "kernel repository"
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exit 1
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fi
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fi
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fi
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if [ -d "${WORKDIR}/git/" ] && [ ! -d "${WORKDIR}/git/.git" ]; then
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# we build out of {S}, so ensure that ${S} is clean and present
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rm -rf ${S}
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mkdir -p ${S}/.git
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mv ${WORKDIR}/git/* ${S}/.git
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rm -rf ${WORKDIR}/git/
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cd ${S}
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git config core.bare false
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fi
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# end debare
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# convert any remote branches to local tracking ones
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for i in `git branch -a | 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 $i > /dev/null
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fi
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done
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# Create a working tree copy of the kernel by checkout out a branch
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git show-ref --quiet --verify -- "refs/heads/${KBRANCH}"
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if [ $? -eq 0 ]; then
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# checkout and clobber and unimportant files
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git checkout -f ${KBRANCH}
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else
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echo "Not checking out ${KBRANCH}, it will be created later"
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git checkout -f master
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fi
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}
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do_kernel_checkout[dirs] = "${S}"
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addtask kernel_checkout before do_patch after do_unpack
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do_kernel_configme[dirs] = "${CCACHE_DIR} ${S} ${B}"
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do_kernel_configme() {
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echo "[INFO] doing kernel configme"
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if [ -n ${KCONFIG_MODE} ]; then
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configmeflags=${KCONFIG_MODE}
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else
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# If a defconfig was passed, use =n as the baseline, which is achieved
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# via --allnoconfig
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if [ -f ${WORKDIR}/defconfig ]; then
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configmeflags="--allnoconfig"
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fi
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fi
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cd ${S}
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PATH=${PATH}:${S}/scripts/util
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configme ${configmeflags} --reconfig --output ${B} ${KBRANCH} ${KMACHINE}
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if [ $? -ne 0 ]; then
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echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
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exit 1
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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}\" >> ${B}/.config
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}
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python do_kernel_configcheck() {
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import bb, re, string, sys, commands
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bb.plain("NOTE: validating kernel configuration")
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pathprefix = "export PATH=%s:%s; " % (d.getVar('PATH', True), "${S}/scripts/util/")
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cmd = d.expand("cd ${B}/..; kconf_check -config- ${B} ${S} ${B} ${KBRANCH}")
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ret, result = commands.getstatusoutput("%s%s" % (pathprefix, cmd))
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bb.plain( "%s" % result )
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}
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# Ensure that the branches (BSP and meta) are on the locatios specified by
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# their SRCREV values. If they are NOT on the right commits, the branches
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# are reset to the correct commit.
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do_validate_branches() {
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cd ${S}
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# nothing to do if bootstrapping
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if [ -n "${YOCTO_KERNEL_EXTERNAL_BRANCH}" ]; then
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return
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fi
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# nothing to do if SRCREV is AUTOREV
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if [ "${SRCREV_machine}" = "AUTOINC" ]; then
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# restore the branch for builds
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git checkout -f ${KBRANCH}
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return
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fi
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branch_head=`git show-ref -s --heads ${KBRANCH}`
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meta_head=`git show-ref -s --heads ${KMETA}`
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target_branch_head="${SRCREV_machine}"
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target_meta_head="${SRCREV_meta}"
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current=`git branch |grep \*|sed 's/^\* //'`
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if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
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if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
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ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
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if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
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echo "ERROR ${target_branch_head} is not a valid commit ID."
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echo "The kernel source tree may be out of sync"
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exit 1
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else
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echo "Forcing branch $current to ${target_branch_head}"
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git branch -m $current $current-orig
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git checkout -b $current ${target_branch_head}
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fi
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fi
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fi
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if [ "$meta_head" != "$target_meta_head" ]; then
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if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
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ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
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if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
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echo "ERROR ${target_meta_head} is not a valid commit ID"
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echo "The kernel source tree may be out of sync"
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exit 1
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else
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echo "Forcing branch meta to ${target_meta_head}"
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git branch -m ${KMETA} ${KMETA}-orig
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git checkout -b ${KMETA} ${target_meta_head}
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fi
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fi
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fi
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# restore the branch for builds
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git checkout -f ${KBRANCH}
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}
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# Many scripts want to look in arch/$arch/boot for the bootable
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# image. This poses a problem for vmlinux based booting. This
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# task arranges to have vmlinux appear in the normalized directory
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# location.
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do_kernel_link_vmlinux() {
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if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
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mkdir ${B}/arch/${ARCH}/boot
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fi
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cd ${B}/arch/${ARCH}/boot
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ln -sf ../../../vmlinux
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}
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