Files
poky/meta/classes/sstate.bbclass
Richard Purdie 129c98c182 sstate: Avoid contention between sstate packages
If several sstate packages are decompressing at the same time, they can
conflict over the "fixmepath". If two packages try to write to this at
the same time it results in an error. To avoid this we remove the file
once we've finished processing it.

(From OE-Core rev: c08d7093bf654ffedb155c5627972e9ecfeb0b60)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2011-09-07 23:39:59 +01:00

524 lines
19 KiB
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SSTATE_VERSION = "2"
SSTATE_MANIFESTS ?= "${TMPDIR}/sstate-control"
SSTATE_MANFILEBASE = "${SSTATE_MANIFESTS}/manifest-${SSTATE_MANMACH}-"
SSTATE_MANFILEPREFIX = "${SSTATE_MANFILEBASE}${PN}"
SSTATE_PKGARCH = "${PACKAGE_ARCH}"
SSTATE_PKGSPEC = "sstate-${PN}-${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}-${PV}-${PR}-${SSTATE_PKGARCH}-${SSTATE_VERSION}-"
SSTATE_PKGNAME = "${SSTATE_PKGSPEC}${BB_TASKHASH}"
SSTATE_PKG = "${SSTATE_DIR}/${SSTATE_PKGNAME}"
SSTATE_SCAN_CMD ?= "find ${SSTATE_BUILDDIR} \( -name "*.la" -o -name "*-config" \) -type f"
BB_HASHFILENAME = "${SSTATE_PKGNAME}"
SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
SSTATEPOSTINSTFUNCS ?= ""
python () {
if bb.data.inherits_class('native', d):
bb.data.setVar('SSTATE_PKGARCH', bb.data.getVar('BUILD_ARCH', d), d)
elif bb.data.inherits_class('cross', d):
bb.data.setVar('SSTATE_PKGARCH', bb.data.expand("${BUILD_ARCH}_${TUNE_PKGARCH}", d), d)
bb.data.setVar('SSTATE_MANMACH', bb.data.expand("${BUILD_ARCH}_${MACHINE}", d), d)
elif bb.data.inherits_class('crosssdk', d):
bb.data.setVar('SSTATE_PKGARCH', bb.data.expand("${BUILD_ARCH}_${PACKAGE_ARCH}", d), d)
elif bb.data.inherits_class('nativesdk', d):
bb.data.setVar('SSTATE_PKGARCH', bb.data.expand("${SDK_ARCH}", d), d)
elif bb.data.inherits_class('cross-canadian', d):
bb.data.setVar('SSTATE_PKGARCH', bb.data.expand("${SDK_ARCH}_${PACKAGE_ARCH}", d), d)
else:
bb.data.setVar('SSTATE_MANMACH', bb.data.expand("${MACHINE}", d), d)
# These classes encode staging paths into their scripts data so can only be
# reused if we manipulate the paths
if bb.data.inherits_class('native', d) or bb.data.inherits_class('cross', d) or bb.data.inherits_class('sdk', d) or bb.data.inherits_class('crosssdk', d):
scan_cmd = "grep -Irl ${STAGING_DIR} ${SSTATE_BUILDDIR}"
bb.data.setVar('SSTATE_SCAN_CMD', scan_cmd, d)
unique_tasks = set((bb.data.getVar('SSTATETASKS', d, True) or "").split())
d.setVar('SSTATETASKS', " ".join(unique_tasks))
namemap = []
for task in unique_tasks:
namemap.append(bb.data.getVarFlag(task, 'sstate-name', d))
funcs = bb.data.getVarFlag(task, 'prefuncs', d) or ""
funcs = "sstate_task_prefunc " + funcs
bb.data.setVarFlag(task, 'prefuncs', funcs, d)
funcs = bb.data.getVarFlag(task, 'postfuncs', d) or ""
funcs = funcs + " sstate_task_postfunc"
bb.data.setVarFlag(task, 'postfuncs', funcs, d)
d.setVar('SSTATETASKNAMES', " ".join(namemap))
}
def sstate_init(name, task, d):
ss = {}
ss['task'] = task
ss['name'] = name
ss['dirs'] = []
ss['plaindirs'] = []
ss['lockfiles'] = []
ss['lockfiles-shared'] = []
return ss
def sstate_state_fromvars(d, task = None):
if task is None:
task = bb.data.getVar('BB_CURRENTTASK', d, True)
if not task:
bb.fatal("sstate code running without task context?!")
task = task.replace("_setscene", "")
name = bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-name', d), d)
inputs = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-inputdirs', d) or "", d)).split()
outputs = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-outputdirs', d) or "", d)).split()
plaindirs = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-plaindirs', d) or "", d)).split()
lockfiles = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-lockfile', d) or "", d)).split()
lockfilesshared = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-lockfile-shared', d) or "", d)).split()
interceptfuncs = (bb.data.expand(bb.data.getVarFlag("do_" + task, 'sstate-interceptfuncs', d) or "", d)).split()
if not name or len(inputs) != len(outputs):
bb.fatal("sstate variables not setup correctly?!")
ss = sstate_init(name, task, d)
for i in range(len(inputs)):
sstate_add(ss, inputs[i], outputs[i], d)
ss['lockfiles'] = lockfiles
ss['lockfiles-shared'] = lockfilesshared
ss['plaindirs'] = plaindirs
ss['interceptfuncs'] = interceptfuncs
return ss
def sstate_add(ss, source, dest, d):
srcbase = os.path.basename(source)
ss['dirs'].append([srcbase, source, dest])
return ss
def sstate_install(ss, d):
import oe.path
sharedfiles = []
shareddirs = []
bb.mkdirhier(bb.data.expand("${SSTATE_MANIFESTS}", d))
manifest = bb.data.expand("${SSTATE_MANFILEPREFIX}.%s" % ss['name'], d)
if os.access(manifest, os.R_OK):
bb.fatal("Package already staged (%s)?!" % manifest)
locks = []
for lock in ss['lockfiles-shared']:
locks.append(bb.utils.lockfile(lock, True))
for lock in ss['lockfiles']:
locks.append(bb.utils.lockfile(lock))
for state in ss['dirs']:
oe.path.copytree(state[1], state[2])
for walkroot, dirs, files in os.walk(state[1]):
for file in files:
srcpath = os.path.join(walkroot, file)
dstpath = srcpath.replace(state[1], state[2])
bb.debug(2, "Staging %s to %s" % (srcpath, dstpath))
sharedfiles.append(dstpath)
for dir in dirs:
srcdir = os.path.join(walkroot, dir)
dstdir = srcdir.replace(state[1], state[2])
bb.debug(2, "Staging %s to %s" % (srcdir, dstdir))
if not dstdir.endswith("/"):
dstdir = dstdir + "/"
shareddirs.append(dstdir)
f = open(manifest, "w")
for file in sharedfiles:
f.write(file + "\n")
# We want to ensure that directories appear at the end of the manifest
# so that when we test to see if they should be deleted any contents
# added by the task will have been removed first.
dirs = sorted(shareddirs, key=len)
# Must remove children first, which will have a longer path than the parent
for di in reversed(dirs):
f.write(di + "\n")
f.close()
for postinst in (bb.data.getVar('SSTATEPOSTINSTFUNCS', d, True) or '').split():
bb.build.exec_func(postinst, d)
for lock in locks:
bb.utils.unlockfile(lock)
def sstate_installpkg(ss, d):
import oe.path
def prepdir(dir):
# remove dir if it exists, ensure any parent directories do exist
if os.path.exists(dir):
oe.path.remove(dir)
bb.mkdirhier(dir)
oe.path.remove(dir)
sstateinst = bb.data.expand("${WORKDIR}/sstate-install-%s/" % ss['name'], d)
sstatepkg = bb.data.getVar('SSTATE_PKG', d, True) + '_' + ss['name'] + ".tgz"
if not os.path.exists(sstatepkg):
pstaging_fetch(sstatepkg, d)
if not os.path.isfile(sstatepkg):
bb.note("Staging package %s does not exist" % sstatepkg)
return False
sstate_clean(ss, d)
bb.data.setVar('SSTATE_INSTDIR', sstateinst, d)
bb.data.setVar('SSTATE_PKG', sstatepkg, d)
bb.build.exec_func('sstate_unpack_package', d)
# Fixup hardcoded paths
fixmefn = sstateinst + "fixmepath"
if os.path.isfile(fixmefn):
staging = bb.data.getVar('STAGING_DIR', d, True)
staging_target = bb.data.getVar('STAGING_DIR_TARGET', d, True)
staging_host = bb.data.getVar('STAGING_DIR_HOST', d, True)
fixmefd = open(fixmefn, "r")
fixmefiles = fixmefd.readlines()
fixmefd.close()
for file in fixmefiles:
os.system("sed -i -e s:FIXMESTAGINGDIRTARGET:%s:g %s" % (staging_target, sstateinst + file))
os.system("sed -i -e s:FIXMESTAGINGDIRHOST:%s:g %s" % (staging_host, sstateinst + file))
os.system("sed -i -e s:FIXMESTAGINGDIR:%s:g %s" % (staging, sstateinst + file))
# Need to remove this or we'd copy it into the target directory and may
# conflict with another writer
os.remove(fixmefn)
for state in ss['dirs']:
prepdir(state[1])
os.rename(sstateinst + state[0], state[1])
sstate_install(ss, d)
for plain in ss['plaindirs']:
workdir = d.getVar('WORKDIR', True)
src = sstateinst + "/" + plain.replace(workdir, '')
dest = plain
bb.mkdirhier(src)
prepdir(dest)
os.rename(src, dest)
return True
def sstate_clean_cachefile(ss, d):
import oe.path
sstatepkgdir = bb.data.getVar('SSTATE_DIR', d, True)
sstatepkgfile = sstatepkgdir + '/' + bb.data.getVar('SSTATE_PKGSPEC', d, True) + "*_" + ss['name'] + ".tgz*"
bb.note("Removing %s" % sstatepkgfile)
oe.path.remove(sstatepkgfile)
def sstate_clean_cachefiles(d):
for task in (bb.data.getVar('SSTATETASKS', d, True) or "").split():
ss = sstate_state_fromvars(d, task[3:])
sstate_clean_cachefile(ss, d)
def sstate_clean_manifest(manifest, d):
import oe.path
mfile = open(manifest)
entries = mfile.readlines()
mfile.close()
for entry in entries:
entry = entry.strip()
bb.debug(2, "Removing manifest: %s" % entry)
# We can race against another package populating directories as we're removing them
# so we ignore errors here.
try:
if entry.endswith("/"):
if os.path.islink(entry[:-1]):
os.remove(entry[:-1])
elif os.path.exists(entry) and len(os.listdir(entry)) == 0:
os.rmdir(entry[:-1])
else:
oe.path.remove(entry)
except OSError:
pass
oe.path.remove(manifest)
def sstate_clean(ss, d):
import oe.path
manifest = bb.data.expand("${SSTATE_MANFILEPREFIX}.%s" % ss['name'], d)
if os.path.exists(manifest):
locks = []
for lock in ss['lockfiles-shared']:
locks.append(bb.utils.lockfile(lock))
for lock in ss['lockfiles']:
locks.append(bb.utils.lockfile(lock))
sstate_clean_manifest(manifest, d)
for lock in locks:
bb.utils.unlockfile(lock)
stfile = d.getVar("STAMP", True) + ".do_" + ss['task']
oe.path.remove(stfile)
oe.path.remove(stfile + "_setscene")
oe.path.remove(stfile + ".*")
oe.path.remove(stfile + "_setscene" + ".*")
CLEANFUNCS += "sstate_cleanall"
python sstate_cleanall() {
import fnmatch
bb.note("Removing shared state for package %s" % bb.data.getVar('PN', d, True))
manifest_dir = bb.data.getVar('SSTATE_MANIFESTS', d, True)
manifest_prefix = bb.data.getVar("SSTATE_MANFILEPREFIX", d, True)
manifest_pattern = os.path.basename(manifest_prefix) + ".*"
if not os.path.exists(manifest_dir):
return
for manifest in (os.listdir(manifest_dir)):
if fnmatch.fnmatch(manifest, manifest_pattern):
name = manifest.replace(manifest_pattern[:-1], "")
namemap = d.getVar('SSTATETASKNAMES', True).split()
tasks = d.getVar('SSTATETASKS', True).split()
if name not in namemap:
continue
taskname = tasks[namemap.index(name)]
shared_state = sstate_state_fromvars(d, taskname[3:])
sstate_clean(shared_state, d)
}
def sstate_hardcode_path(d):
# Need to remove hardcoded paths and fix these when we install the
# staging packages.
sstate_scan_cmd = bb.data.getVar('SSTATE_SCAN_CMD', d, True)
p = os.popen("%s" % sstate_scan_cmd)
file_list = p.read()
if file_list == "":
p.close()
return
staging = bb.data.getVar('STAGING_DIR', d, True)
staging_target = bb.data.getVar('STAGING_DIR_TARGET', d, True)
staging_host = bb.data.getVar('STAGING_DIR_HOST', d, True)
sstate_builddir = bb.data.getVar('SSTATE_BUILDDIR', d, True)
for i in file_list.split('\n'):
if not i:
continue
if bb.data.inherits_class('native', d) or bb.data.inherits_class('nativesdk', d) or bb.data.inherits_class('crosssdk', d) or bb.data.inherits_class('cross-canadian', d):
cmd = "sed -i -e s:%s:FIXMESTAGINGDIR:g %s" % (staging, i)
elif bb.data.inherits_class('cross', d):
cmd = "sed -i -e s:%s:FIXMESTAGINGDIRTARGET:g %s \
sed -i -e s:%s:FIXMESTAGINGDIR:g %s" % (staging_target, i, staging, i)
else:
cmd = "sed -i -e s:%s:FIXMESTAGINGDIRHOST:g %s" % (staging_host, i)
os.system(cmd)
os.system("echo %s | sed -e 's:%s::' >> %sfixmepath" % (i, sstate_builddir, sstate_builddir))
p.close()
def sstate_package(ss, d):
import oe.path
def make_relative_symlink(path, outputpath, d):
# Replace out absolute TMPDIR paths in symlinks with relative ones
if not os.path.islink(path):
return
link = os.readlink(path)
if not os.path.isabs(link):
return
if not link.startswith(tmpdir):
return
depth = link.rpartition(tmpdir)[2].count('/')
base = link.partition(tmpdir)[2].strip()
while depth > 1:
base = "../" + base
depth -= 1
bb.debug(2, "Replacing absolute path %s with relative path %s" % (link, base))
os.remove(path)
os.symlink(base, path)
tmpdir = bb.data.getVar('TMPDIR', d, True)
sstatebuild = bb.data.expand("${WORKDIR}/sstate-build-%s/" % ss['name'], d)
sstatepkg = bb.data.getVar('SSTATE_PKG', d, True) + '_'+ ss['name'] + ".tgz"
bb.mkdirhier(sstatebuild)
bb.mkdirhier(os.path.dirname(sstatepkg))
for state in ss['dirs']:
srcbase = state[0].rstrip("/").rsplit('/', 1)[0]
for walkroot, dirs, files in os.walk(state[1]):
for file in files:
srcpath = os.path.join(walkroot, file)
dstpath = srcpath.replace(state[1], sstatebuild + state[0])
bb.debug(2, "Preparing %s for packaging at %s" % (srcpath, dstpath))
make_relative_symlink(srcpath, dstpath, d)
for dir in dirs:
srcpath = os.path.join(walkroot, dir)
dstpath = srcpath.replace(state[1], sstatebuild + state[0])
make_relative_symlink(srcpath, dstpath, d)
oe.path.copytree(state[1], sstatebuild + state[0])
workdir = bb.data.getVar('WORKDIR', d, True)
for plain in ss['plaindirs']:
pdir = plain.replace(workdir, sstatebuild)
bb.mkdirhier(plain)
bb.mkdirhier(pdir)
oe.path.copytree(plain, pdir)
bb.data.setVar('SSTATE_BUILDDIR', sstatebuild, d)
bb.data.setVar('SSTATE_PKG', sstatepkg, d)
sstate_hardcode_path(d)
bb.build.exec_func('sstate_create_package', d)
bb.siggen.dump_this_task(sstatepkg + ".siginfo", d)
return
def pstaging_fetch(sstatepkg, d):
import bb.fetch2
# Only try and fetch if the user has configured a mirror
mirrors = bb.data.getVar('SSTATE_MIRRORS', d, True)
if not mirrors:
return
# Copy the data object and override DL_DIR and SRC_URI
localdata = bb.data.createCopy(d)
bb.data.update_data(localdata)
dldir = bb.data.expand("${SSTATE_DIR}", localdata)
srcuri = "file://" + os.path.basename(sstatepkg)
bb.mkdirhier(dldir)
bb.data.setVar('DL_DIR', dldir, localdata)
bb.data.setVar('PREMIRRORS', mirrors, localdata)
bb.data.setVar('SRC_URI', srcuri, localdata)
# Try a fetch from the sstate mirror, if it fails just return and
# we will build the package
try:
fetcher = bb.fetch2.Fetch([srcuri], localdata, cache=False)
fetcher.download()
# Need to optimise this, if using file:// urls, the fetcher just changes the local path
# For now work around by symlinking
localpath = bb.data.expand(fetcher.localpath(srcuri), localdata)
if localpath != sstatepkg and os.path.exists(localpath) and not os.path.exists(sstatepkg):
os.symlink(localpath, sstatepkg)
except bb.fetch2.BBFetchException:
pass
def sstate_setscene(d):
shared_state = sstate_state_fromvars(d)
accelerate = sstate_installpkg(shared_state, d)
if not accelerate:
raise bb.build.FuncFailed("No suitable staging package found")
python sstate_task_prefunc () {
shared_state = sstate_state_fromvars(d)
sstate_clean(shared_state, d)
}
python sstate_task_postfunc () {
shared_state = sstate_state_fromvars(d)
sstate_install(shared_state, d)
for intercept in shared_state['interceptfuncs']:
bb.build.exec_func(intercept, d)
sstate_package(shared_state, d)
}
#
# Shell function to generate a sstate package from a directory
# set as SSTATE_BUILDDIR
#
sstate_create_package () {
cd ${SSTATE_BUILDDIR}
# Need to handle empty directories
if [ "$(ls -A)" ]; then
tar -czf ${SSTATE_PKG} *
else
tar -cz --file=${SSTATE_PKG} --files-from=/dev/null
fi
cd ${WORKDIR}
rm -rf ${SSTATE_BUILDDIR}
}
#
# Shell function to decompress and prepare a package for installation
#
sstate_unpack_package () {
mkdir -p ${SSTATE_INSTDIR}
cd ${SSTATE_INSTDIR}
tar -xvzf ${SSTATE_PKG}
}
BB_HASHCHECK_FUNCTION = "sstate_checkhashes"
def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
ret = []
# This needs to go away, FIXME
mapping = {
"do_populate_sysroot" : "populate-sysroot",
"do_populate_lic" : "populate-lic",
"do_package_write_ipk" : "deploy-ipk",
"do_package_write_deb" : "deploy-deb",
"do_package_write_rpm" : "deploy-rpm",
"do_package" : "package",
"do_deploy" : "deploy",
}
for task in range(len(sq_fn)):
sstatefile = bb.data.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz", d)
sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
if os.path.exists(sstatefile):
bb.debug(2, "SState: Found valid sstate file %s" % sstatefile)
ret.append(task)
continue
else:
bb.debug(2, "SState: Looked for but didn't find file %s" % sstatefile)
mirrors = bb.data.getVar("SSTATE_MIRRORS", d, True)
if mirrors:
# Copy the data object and override DL_DIR and SRC_URI
localdata = bb.data.createCopy(d)
bb.data.update_data(localdata)
dldir = bb.data.expand("${SSTATE_DIR}", localdata)
bb.data.setVar('DL_DIR', dldir, localdata)
bb.data.setVar('PREMIRRORS', mirrors, localdata)
bb.debug(2, "SState using premirror of: %s" % mirrors)
for task in range(len(sq_fn)):
if task in ret:
continue
sstatefile = bb.data.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz", d)
sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
srcuri = "file://" + os.path.basename(sstatefile)
bb.data.setVar('SRC_URI', srcuri, localdata)
bb.debug(2, "SState: Attempting to fetch %s" % srcuri)
try:
fetcher = bb.fetch2.Fetch(srcuri.split(), localdata)
fetcher.checkstatus()
bb.debug(2, "SState: Successful fetch test for %s" % srcuri)
ret.append(task)
except:
bb.debug(2, "SState: Unsuccessful fetch test for %s" % srcuri)
pass
return ret