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-rw-r--r--meta/classes/kernel-yocto.bbclass438
1 files changed, 203 insertions, 235 deletions
diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 53bc6d443c..50226f6d49 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -1,7 +1,7 @@
-S = "${WORKDIR}/linux"
-
# remove tasks that modify the source tree in case externalsrc is inherited
-SRCTREECOVEREDTASKS += "do_kernel_link_vmlinux do_kernel_configme do_validate_branches do_kernel_configcheck do_kernel_checkout do_patch"
+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
@@ -35,6 +35,7 @@ def find_kernel_feature_dirs(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:
@@ -53,11 +54,14 @@ def get_machine_branch(d, default):
parm = urldata.parm
if "branch" in parm:
branches = urldata.parm.get("branch").split(',')
- return branches[0]
+ btype = urldata.parm.get("type")
+ if btype != "kmeta":
+ return branches[0]
return default
-do_patch() {
+do_kernel_metadata() {
+ set +e
cd ${S}
export KMETA=${KMETA}
@@ -71,109 +75,147 @@ do_patch() {
fi
machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
-
- # if we have a defined/set meta branch we should not be generating
- # any meta data. The passed branch has what we need.
- if [ -n "${KMETA}" ]; then
- createme_flags="--disable-meta-gen --meta ${KMETA}"
+ machine_srcrev="${SRCREV_machine}"
+ if [ -z "${machine_srcrev}" ]; then
+ # fallback to SRCREV if a non machine_meta tree is being built
+ machine_srcrev="${SRCREV}"
fi
- createme ${createme_flags} ${ARCH} ${machine_branch}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not create ${machine_branch}"
- exit 1
+ # 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 '${KBUILD_DEFCONFIG}' was specified, but not present in the source tree"
+ fi
fi
- sccs="${@" ".join(find_sccs(d))}"
+ sccs="$sccs ${@" ".join(find_sccs(d))}"
patches="${@" ".join(find_patches(d))}"
feat_dirs="${@" ".join(find_kernel_feature_dirs(d))}"
- set +e
- # add any explicitly referenced features onto the end of the feature
- # list that is passed to the kernel build scripts.
- if [ -n "${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
+ 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}/$f"
+ includes="$includes -I${WORKDIR}/$f/kernel-meta"
+ elif [ -d "${WORKDIR}/$f" ]; then
+ includes="$includes -I${WORKDIR}/$f"
fi
- done
- 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=${LINUX_KERNEL_TYPE})
+ meta_dir=$(kgit --meta)
- if [ "${machine_branch}" != "${KBRANCH_DEFAULT}" ]; then
- updateme_flags="--branch ${machine_branch}"
+ # 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
- # 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
- echo "ERROR. Could not update ${machine_branch}"
- exit 1
+ # 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
+}
- # executes and modifies the source tree as required
- patchme ${KMACHINE}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not apply patches for ${KMACHINE}."
- echo " Patch failures can be resolved in the devshell (bitbake -c devshell ${PN})"
- exit 1
+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 ${S})"
+ fi
fi
- # Perform a final check. If something other than the default kernel
- # branch was requested, and that's not where we ended up, then we
- # should thrown an error, since we aren't building what was expected
- final_branch="$(git symbolic-ref HEAD 2>/dev/null)"
- final_branch=${final_branch##refs/heads/}
- if [ "${machine_branch}" != "${KBRANCH_DEFAULT}" ] &&
- [ "${final_branch}" != "${machine_branch}" ]; then
- echo "ERROR: branch ${machine_branch} was requested, but was not properly"
- echo " configured to be built. The current branch is ${final_branch}"
- exit 1
+ if [ -f "${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
- # A linux yocto SRC_URI should use the bareclone option. That
- # ensures that all the branches are available in the WORKDIR version
- # of the repository.
source_dir=`echo ${S} | sed 's%/$%%'`
source_workdir="${WORKDIR}/git"
- if [ -d "${WORKDIR}/git/" ] && [ -d "${WORKDIR}/git/.git" ]; then
- # case2: the repository is a non-bare clone
-
+ if [ -d "${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
- rm -rf ${S}
- mv ${WORKDIR}/git ${S}
+ if [ -d "${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 ${S}
- elif [ -d "${WORKDIR}/git/" ] && [ ! -d "${WORKDIR}/git/.git" ]; then
- # case2: the repository is a bare clone
-
- # if S is WORKDIR/git, then we shouldn't be moving or deleting the tree.
- if [ "${source_dir}" != "${source_workdir}" ]; then
- rm -rf ${S}
- mkdir -p ${S}/.git
- mv ${WORKDIR}/git/* ${S}/.git
- rm -rf ${WORKDIR}/git/
- fi
- cd ${S}
- git config core.bare false
else
- # case 3: we have no git repository at all.
+ # 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
@@ -183,34 +225,14 @@ do_kernel_checkout() {
cd ${S}
if [ ! -f "Makefile" ]; then
- echo "[ERROR]: S is not set to the linux source directory. Check "
- echo " the recipe and set S to the proper extracted subdirectory"
- exit 1
+ 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}"
- fi
- # end debare
-
- # If KMETA is defined, the branch must exist, but a machine branch
- # can be missing since it may be created later by the tools.
- if [ -n "${KMETA}" ]; then
- git branch -a --no-color | grep -q ${KMETA}
- if [ $? -ne 0 ]; then
- echo "ERROR. The branch '${KMETA}' is required and was not"
- echo "found. Ensure that the SRC_URI points to a valid linux-yocto"
- echo "kernel repository"
- exit 1
- fi
- fi
-
- machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
-
- if [ "${KBRANCH}" != "${machine_branch}" ]; then
- echo "WARNING: The SRC_URI machine branch and KBRANCH are not the same."
- echo " KBRANCH will be adjusted to match, but this typically is a"
- echo " misconfiguration and should be checked."
+ git clean -d -f
fi
# convert any remote branches to local tracking ones
@@ -223,190 +245,136 @@ do_kernel_checkout() {
done
# Create a working tree copy of the kernel by checking out a branch
- git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
- if [ $? -eq 0 ]; then
- # checkout and clobber any unimportant files
- git checkout -f ${machine_branch}
- else
- echo "Not checking out ${machine_branch}, it will be created later"
- git checkout -f master
- fi
+ machine_branch="${@ 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_patch after do_unpack
+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[dirs] += "${S} ${B}"
do_kernel_configme() {
- echo "[INFO] doing kernel configme"
- export KMETA=${KMETA}
+ set +e
- if [ -n ${KCONFIG_MODE} ]; then
- configmeflags=${KCONFIG_MODE}
- else
- # If a defconfig was passed, use =n as the baseline, which is achieved
- # via --allnoconfig
+ # 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
- configmeflags="--allnoconfig"
+ config_flags="-n"
fi
- fi
+ ;;
+ esac
cd ${S}
- PATH=${PATH}:${S}/scripts/util
- configme ${configmeflags} --reconfig --output ${B} ${LINUX_KERNEL_TYPE} ${KMACHINE}
+
+ meta_dir=$(kgit --meta)
+ configs="$(scc --configs -o ${meta_dir})"
+ if [ -z "${configs}" ]; then
+ bbfatal_log "Could not find configuration queue (${meta_dir}/config.queue)"
+ fi
+
+ CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
if [ $? -ne 0 ]; then
- echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
+ bbfatal_log "Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
fi
-
+
echo "# Global settings from linux recipe" >> ${B}/.config
echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
}
-addtask kernel_configme after do_patch
+addtask kernel_configme before do_configure after do_patch
python do_kernel_configcheck() {
import re, string, sys
- bb.plain("NOTE: validating kernel config, see log.do_kernel_configcheck for details")
-
# if KMETA isn't set globally by a recipe using this routine, we need to
# set the default to 'meta'. Otherwise, kconf_check is not passed a valid
# meta-series for processing
- kmeta = d.getVar( "KMETA", True ) or "meta"
+ kmeta = d.getVar("KMETA") or "meta"
if not os.path.exists(kmeta):
kmeta = "." + kmeta
- pathprefix = "export PATH=%s:%s; " % (d.getVar('PATH', True), "${S}/scripts/util/")
- cmd = d.expand("cd ${S}; kconf_check -config- %s/meta-series ${S} ${B}" % kmeta)
+ pathprefix = "export PATH=%s:%s; " % (d.getVar('PATH'), "${S}/scripts/util/")
+
+ cmd = d.expand("scc --configs -o ${S}/.kernel-meta")
+ ret, configs = oe.utils.getstatusoutput("%s%s" % (pathprefix, cmd))
+
+ cmd = d.expand("cd ${S}; kconf_check --report -o ${S}/%s/cfg/ ${B}/.config ${S} %s" % (kmeta,configs))
ret, result = oe.utils.getstatusoutput("%s%s" % (pathprefix, cmd))
- config_check_visibility = d.getVar( "KCONF_AUDIT_LEVEL", True ) or 1
- if config_check_visibility == 1:
- bb.debug( 1, "%s" % result )
- else:
- bb.note( "%s" % result )
+ config_check_visibility = int(d.getVar("KCONF_AUDIT_LEVEL") or 0)
+ bsp_check_visibility = int(d.getVar("KCONF_BSP_AUDIT_LEVEL") or 0)
+
+ # if config check visibility is non-zero, report dropped configuration values
+ mismatch_file = d.expand("${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)
}
# 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 ${S}
- export KMETA=${KMETA}
machine_branch="${@ get_machine_branch(d, "${KBRANCH}" )}"
+ machine_srcrev="${SRCREV_machine}"
- set +e
# if SRCREV is AUTOREV it shows up as AUTOINC there's nothing to
# check and we can exit early
- if [ "${SRCREV_machine}" = "AUTOINC" ] || [ "${SRCREV_machine}" = "INVALID" ] ||
- [ "${SRCREV_machine}" = "" ]; then
- return
- fi
-
- # If something other than the default branch was requested, it must
- # exist in the tree, and it's a hard error if it wasn't
- git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
- if [ $? -eq 1 ]; then
- if [ -n "${KBRANCH_DEFAULT}" ] &&
- [ "${machine_branch}" != "${KBRANCH_DEFAULT}" ]; then
- echo "ERROR: branch ${machine_branch} was set for kernel compilation, "
- echo " but it does not exist in the kernel repository."
- echo " Check the value of KBRANCH and ensure that it describes"
- echo " a valid banch in the source kernel repository"
- exit 1
+ if [ "${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
- fi
-
- if [ -z "${SRCREV_machine}" ]; then
- target_branch_head="${SRCREV}"
else
- target_branch_head="${SRCREV_machine}"
- fi
-
- # $SRCREV could have also been AUTOINC, so check again
- if [ "${target_branch_head}" = "AUTOINC" ]; then
- return
- fi
-
- ref=`git show ${target_branch_head} 2>&1 | head -n1 || true`
- if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
- echo "ERROR ${target_branch_head} is not a valid commit ID."
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
-
- containing_branches=`git branch --contains $target_branch_head | sed 's/^..//'`
- if [ -z "$containing_branches" ]; then
- echo "ERROR: SRCREV was set to \"$target_branch_head\", but no branches"
- echo " contain this commit"
- exit 1
- fi
-
- # force the SRCREV in each branch that contains the specified
- # SRCREV (if it isn't the current HEAD of that branch)
- git checkout -q master
- for b in $containing_branches; do
- branch_head=`git show-ref -s --heads ${b}`
- if [ "$branch_head" != "$target_branch_head" ]; then
- echo "[INFO] Setting branch $b to ${target_branch_head}"
- if [ "$b" = "master" ]; then
- git reset --hard $target_branch_head > /dev/null
- else
- git branch -D $b > /dev/null
- git branch $b $target_branch_head > /dev/null
- fi
- fi
- done
-
- ## KMETA branch validation.
- ## We do validation if the meta branch exists, and AUTOREV hasn't been set
- meta_head=`git show-ref -s --heads ${KMETA}`
- target_meta_head="${SRCREV_meta}"
- git show-ref --quiet --verify -- "refs/heads/${KMETA}"
- if [ $? -eq 0 ] && [ "${target_meta_head}" != "AUTOINC" ]; then
- if [ "$meta_head" != "$target_meta_head" ]; then
- ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
- if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
- echo "ERROR ${target_meta_head} is not a valid commit ID"
- echo "The kernel source tree may be out of sync"
- exit 1
- else
- echo "[INFO] Setting branch ${KMETA} to ${target_meta_head}"
- git branch -m ${KMETA} ${KMETA}-orig
- git checkout -q -b ${KMETA} ${target_meta_head}
- if [ $? -ne 0 ];then
- echo "ERROR: could not checkout ${KMETA} branch from known hash ${target_meta_head}"
- exit 1
- fi
- fi
+ 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=${machine_srcrev}
fi
- git show-ref --quiet --verify -- "refs/heads/${machine_branch}"
- if [ $? -eq 0 ]; then
- # restore the branch for builds
- git checkout -q -f ${machine_branch}
- else
- git checkout -q master
- fi
-}
-
-# Many scripts want to look in arch/$arch/boot for the bootable
-# image. This poses a problem for vmlinux based booting. This
-# task arranges to have vmlinux appear in the normalized directory
-# location.
-do_kernel_link_vmlinux() {
- if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
- mkdir ${B}/arch/${ARCH}/boot
+ 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
- cd ${B}/arch/${ARCH}/boot
- ln -sf ../../../vmlinux
}
-OE_TERMINAL_EXPORTS += "GUILT_BASE KBUILD_OUTPUT"
-GUILT_BASE = "meta"
+OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT"
KBUILD_OUTPUT = "${B}"
python () {
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-30 09:30:06 +0000