blob: 54a1a1627ab930afbd749f5a9c75bb314a6c268d [file] [log] [blame]
# remove tasks that modify the source tree in case externalsrc is inherited
SRCTREECOVEREDTASKS += "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"
# The distro or local.conf should set this, but if nobody cares...
LINUX_KERNEL_TYPE ??= "standard"
# KMETA ?= ""
KBRANCH ?= "master"
KMACHINE ?= "${MACHINE}"
SRCREV_FORMAT ?= "meta_machine"
# LEVELS:
# 0: no reporting
# 1: report options that are specified, but not in the final config
# 2: report options that are not hardware related, but set by a BSP
KCONF_AUDIT_LEVEL ?= "1"
KCONF_BSP_AUDIT_LEVEL ?= "0"
KMETA_AUDIT ?= "yes"
# returns local (absolute) path names for all valid patches in the
# src_uri
def find_patches(d,subdir):
patches = src_patches(d)
patch_list=[]
for p in patches:
_, _, local, _, _, parm = bb.fetch.decodeurl(p)
# if patchdir has been passed, we won't be able to apply it so skip
# the patch for now, and special processing happens later
patchdir = ''
if "patchdir" in parm:
patchdir = parm["patchdir"]
if subdir:
if subdir == patchdir:
patch_list.append(local)
else:
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 'defconfig' in base:
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
# 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} ${WORKDIR}/defconfig
fi
in_tree_defconfig="${WORKDIR}/defconfig"
else
bbfatal "A KBUILD_DEFCONFIG '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree"
fi
fi
# was anyone trying to patch the kernel meta data ?, we need to do
# this here, since the scc commands migrate the .cfg fragments to the
# kernel source tree, where they'll be used later.
check_git_config
patches="${@" ".join(find_patches(d,'kernel-meta'))}"
for p in $patches; do
(
cd ${WORKDIR}/kernel-meta
git am -s $p
)
done
sccs_from_src_uri="${@" ".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 ?
src_uri_defconfig=$(echo $sccs_from_src_uri | awk '(match($0, "defconfig") != 0) { print $0 }' RS=' ')
# drop and defconfig's from the src_uri variable, we captured it just above here if it existed
sccs_from_src_uri=$(echo $sccs_from_src_uri | awk '(match($0, "defconfig") == 0) { print $0 }' RS=' ')
if [ -n "$in_tree_defconfig" ]; then
sccs_defconfig=$in_tree_defconfig
if [ -n "$src_uri_defconfig" ]; then
bbwarn "[NOTE]: defconfig was supplied both via KBUILD_DEFCONFIG and SRC_URI. Dropping SRC_URI defconfig"
fi
else
# if we didn't have an in-tree one, make our defconfig the one
# from the src_uri. Note: there may not have been one from the
# src_uri, so this can be an empty variable.
sccs_defconfig=$src_uri_defconfig
fi
sccs="$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 "${WORKDIR}/../oe-local-files/$f" ]; then
includes="$includes -I${WORKDIR}/../oe-local-files/$f"
elif [ -d "${WORKDIR}/$f" ]; then
includes="$includes -I${WORKDIR}/$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
if [ -z "$sccs_defconfig" ]; then
bbfatal_log "Could not locate BSP definition for ${KMACHINE}/${LINUX_KERNEL_TYPE} and no defconfig was provided"
fi
else
# if the bsp definition has "define KMETA_EXTERNAL_BSP t",
# then we need to set a flag that will instruct the next
# steps to use the BSP as both configuration and patches.
grep -q KMETA_EXTERNAL_BSP $bsp_definition
if [ $? -eq 0 ]; then
KMETA_EXTERNAL_BSPS="t"
fi
fi
meta_dir=$(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} $sccs_defconfig $bsp_definition $sccs $patches ${KERNEL_FEATURES}
if [ $? -ne 0 ]; then
bbfatal_log "Could not generate configuration queue for ${KMACHINE}."
fi
fi
# if KMETA_EXTERNAL_BSPS has been set, or it has been detected from
# the bsp definition, then we inject the bsp_definition into the
# patch phase below. we'll piggy back on the sccs variable.
if [ -n "${KMETA_EXTERNAL_BSPS}" ]; then
sccs="${bsp_definition} ${sccs}"
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_symlink_kernsrc
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[depends] += "kern-tools-native:do_populate_sysroot"
do_kernel_configme[dirs] += "${S} ${B}"
do_kernel_configme() {
# 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="${KERNEL_CC}" LD="${KERNEL_LD}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
if [ $? -ne 0 -o ! -f ${B}/.config ]; then
bberror "Could not generate a .config for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
if [ ${KCONF_AUDIT_LEVEL} -gt 1 ]; then
bbfatal_log "`cat ${meta_dir}/cfg/merge_config_build.log`"
else
bbfatal_log "Details can be found at: ${S}/${meta_dir}/cfg/merge_config_build.log"
fi
fi
if [ ! -z "${LINUX_VERSION_EXTENSION}" ]; then
echo "# Global settings from linux recipe" >> ${B}/.config
echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
fi
}
addtask kernel_configme before do_configure after do_patch
python do_kernel_configcheck() {
import re, string, sys, subprocess
# if KMETA isn't set globally by a recipe using this routine, we need to
# set the default to 'meta'. Otherwise, kconf_check is not passed a valid
# meta-series for processing
kmeta = d.getVar("KMETA") or "meta"
if not os.path.exists(kmeta):
kmeta = "." + kmeta
s = d.getVar('S')
env = os.environ.copy()
env['PATH'] = "%s:%s%s" % (d.getVar('PATH'), s, "/scripts/util/")
env['LD'] = "${KERNEL_LD}"
try:
configs = subprocess.check_output(['scc', '--configs', '-o', s + '/.kernel-meta'], env=env).decode('utf-8')
except subprocess.CalledProcessError as e:
bb.fatal( "Cannot gather config fragments for audit: %s" % e.output.decode("utf-8") )
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)
bsp_check_visibility = int(d.getVar("KCONF_BSP_AUDIT_LEVEL") or 0)
# if config check visibility is non-zero, report dropped configuration values
mismatch_file = d.expand("${S}/%s/cfg/mismatch.txt" % kmeta)
if os.path.exists(mismatch_file):
if config_check_visibility:
with open (mismatch_file, "r") as myfile:
results = myfile.read()
bb.warn( "[kernel config]: specified values did not make it into the kernel's final configuration:\n\n%s" % results)
if bsp_check_visibility:
invalid_file = d.expand("${S}/%s/cfg/invalid.cfg" % kmeta)
if os.path.exists(invalid_file) and os.stat(invalid_file).st_size > 0:
with open (invalid_file, "r") as myfile:
results = myfile.read()
bb.warn( "[kernel config]: This BSP sets config options that are not offered anywhere within this kernel:\n\n%s" % results)
errors_file = d.expand("${S}/%s/cfg/fragment_errors.txt" % kmeta)
if os.path.exists(errors_file) and os.stat(errors_file).st_size > 0:
with open (errors_file, "r") as myfile:
results = myfile.read()
bb.warn( "[kernel config]: This BSP contains fragments with errors:\n\n%s" % results)
# if the audit level is greater than two, we report if a fragment has overriden
# a value from a base fragment. This is really only used for new kernel introduction
if bsp_check_visibility > 2:
redefinition_file = d.expand("${S}/%s/cfg/redefinition.txt" % kmeta)
if os.path.exists(redefinition_file) and os.stat(redefinition_file).st_size > 0:
with open (redefinition_file, "r") as myfile:
results = myfile.read()
bb.warn( "[kernel config]: This BSP has configuration options defined in more than one config, with differing values:\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_<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)
externalsrc = d.getVar('EXTERNALSRC')
if externalsrc:
# If we deltask do_patch, do_kernel_configme is left without
# dependencies and runs too early
d.setVarFlag('do_kernel_configme', 'deps', (d.getVarFlag('do_kernel_configme', 'deps', False) or []) + ['do_unpack'])
}
# extra tasks
addtask kernel_version_sanity_check after do_kernel_metadata do_kernel_checkout before do_compile
addtask validate_branches before do_patch after do_kernel_checkout
addtask kernel_configcheck after do_configure before do_compile