mirror of
https://git.yoctoproject.org/poky
synced 2026-03-06 07:19:39 +01:00
654eadfa30
python deprecated logger.warn() in favour of logger.warning(). This is only used in bitbake code so we may as well just translate everything to avoid warnings under python 3. Its safe for python 2.7. (Bitbake rev: 676a5f592e8507e81b8f748d58acfea7572f8796) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
602 lines
22 KiB
Python
602 lines
22 KiB
Python
import hashlib
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import logging
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import os
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import re
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import tempfile
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import bb.data
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from bb.checksum import FileChecksumCache
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logger = logging.getLogger('BitBake.SigGen')
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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logger.info('Importing cPickle failed. Falling back to a very slow implementation.')
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def init(d):
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siggens = [obj for obj in globals().itervalues()
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if type(obj) is type and issubclass(obj, SignatureGenerator)]
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desired = d.getVar("BB_SIGNATURE_HANDLER", True) or "noop"
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for sg in siggens:
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if desired == sg.name:
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return sg(d)
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break
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else:
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logger.error("Invalid signature generator '%s', using default 'noop'\n"
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"Available generators: %s", desired,
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', '.join(obj.name for obj in siggens))
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return SignatureGenerator(d)
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class SignatureGenerator(object):
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"""
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"""
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name = "noop"
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def __init__(self, data):
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self.taskhash = {}
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self.runtaskdeps = {}
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self.file_checksum_values = {}
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self.taints = {}
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def finalise(self, fn, d, varient):
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return
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def get_taskhash(self, fn, task, deps, dataCache):
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return "0"
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def writeout_file_checksum_cache(self):
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"""Write/update the file checksum cache onto disk"""
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return
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def stampfile(self, stampbase, file_name, taskname, extrainfo):
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return ("%s.%s.%s" % (stampbase, taskname, extrainfo)).rstrip('.')
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def stampcleanmask(self, stampbase, file_name, taskname, extrainfo):
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return ("%s.%s.%s" % (stampbase, taskname, extrainfo)).rstrip('.')
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def dump_sigtask(self, fn, task, stampbase, runtime):
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return
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def invalidate_task(self, task, d, fn):
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bb.build.del_stamp(task, d, fn)
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def dump_sigs(self, dataCache, options):
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return
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def get_taskdata(self):
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return (self.runtaskdeps, self.taskhash, self.file_checksum_values, self.taints)
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def set_taskdata(self, data):
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self.runtaskdeps, self.taskhash, self.file_checksum_values, self.taints = data
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class SignatureGeneratorBasic(SignatureGenerator):
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"""
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"""
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name = "basic"
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def __init__(self, data):
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self.basehash = {}
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self.taskhash = {}
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self.taskdeps = {}
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self.runtaskdeps = {}
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self.file_checksum_values = {}
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self.taints = {}
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self.gendeps = {}
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self.lookupcache = {}
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self.pkgnameextract = re.compile("(?P<fn>.*)\..*")
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self.basewhitelist = set((data.getVar("BB_HASHBASE_WHITELIST", True) or "").split())
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self.taskwhitelist = None
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self.init_rundepcheck(data)
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checksum_cache_file = data.getVar("BB_HASH_CHECKSUM_CACHE_FILE", True)
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if checksum_cache_file:
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self.checksum_cache = FileChecksumCache()
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self.checksum_cache.init_cache(data, checksum_cache_file)
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else:
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self.checksum_cache = None
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def init_rundepcheck(self, data):
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self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST", True) or None
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if self.taskwhitelist:
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self.twl = re.compile(self.taskwhitelist)
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else:
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self.twl = None
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def _build_data(self, fn, d):
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tasklist, gendeps, lookupcache = bb.data.generate_dependencies(d)
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taskdeps = {}
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basehash = {}
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for task in tasklist:
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data = lookupcache[task]
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if data is None:
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bb.error("Task %s from %s seems to be empty?!" % (task, fn))
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data = ''
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gendeps[task] -= self.basewhitelist
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newdeps = gendeps[task]
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seen = set()
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while newdeps:
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nextdeps = newdeps
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seen |= nextdeps
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newdeps = set()
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for dep in nextdeps:
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if dep in self.basewhitelist:
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continue
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gendeps[dep] -= self.basewhitelist
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newdeps |= gendeps[dep]
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newdeps -= seen
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alldeps = sorted(seen)
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for dep in alldeps:
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data = data + dep
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var = lookupcache[dep]
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if var is not None:
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data = data + str(var)
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self.basehash[fn + "." + task] = hashlib.md5(data).hexdigest()
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taskdeps[task] = alldeps
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self.taskdeps[fn] = taskdeps
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self.gendeps[fn] = gendeps
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self.lookupcache[fn] = lookupcache
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return taskdeps
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def finalise(self, fn, d, variant):
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if variant:
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fn = "virtual:" + variant + ":" + fn
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try:
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taskdeps = self._build_data(fn, d)
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except:
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bb.warn("Error during finalise of %s" % fn)
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raise
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#Slow but can be useful for debugging mismatched basehashes
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#for task in self.taskdeps[fn]:
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# self.dump_sigtask(fn, task, d.getVar("STAMP", True), False)
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for task in taskdeps:
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d.setVar("BB_BASEHASH_task-%s" % task, self.basehash[fn + "." + task])
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def rundep_check(self, fn, recipename, task, dep, depname, dataCache):
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# Return True if we should keep the dependency, False to drop it
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# We only manipulate the dependencies for packages not in the whitelist
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if self.twl and not self.twl.search(recipename):
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# then process the actual dependencies
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if self.twl.search(depname):
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return False
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return True
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def read_taint(self, fn, task, stampbase):
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taint = None
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try:
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with open(stampbase + '.' + task + '.taint', 'r') as taintf:
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taint = taintf.read()
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except IOError:
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pass
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return taint
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def get_taskhash(self, fn, task, deps, dataCache):
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k = fn + "." + task
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data = dataCache.basetaskhash[k]
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self.runtaskdeps[k] = []
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self.file_checksum_values[k] = []
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recipename = dataCache.pkg_fn[fn]
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for dep in sorted(deps, key=clean_basepath):
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depname = dataCache.pkg_fn[self.pkgnameextract.search(dep).group('fn')]
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if not self.rundep_check(fn, recipename, task, dep, depname, dataCache):
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continue
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if dep not in self.taskhash:
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bb.fatal("%s is not in taskhash, caller isn't calling in dependency order?", dep)
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data = data + self.taskhash[dep]
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self.runtaskdeps[k].append(dep)
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if task in dataCache.file_checksums[fn]:
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if self.checksum_cache:
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checksums = self.checksum_cache.get_checksums(dataCache.file_checksums[fn][task], recipename)
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else:
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checksums = bb.fetch2.get_file_checksums(dataCache.file_checksums[fn][task], recipename)
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for (f,cs) in checksums:
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self.file_checksum_values[k].append((f,cs))
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if cs:
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data = data + cs
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taskdep = dataCache.task_deps[fn]
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if 'nostamp' in taskdep and task in taskdep['nostamp']:
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# Nostamp tasks need an implicit taint so that they force any dependent tasks to run
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import uuid
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taint = str(uuid.uuid4())
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data = data + taint
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self.taints[k] = "nostamp:" + taint
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taint = self.read_taint(fn, task, dataCache.stamp[fn])
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if taint:
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data = data + taint
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self.taints[k] = taint
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logger.warning("%s is tainted from a forced run" % k)
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h = hashlib.md5(data).hexdigest()
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self.taskhash[k] = h
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#d.setVar("BB_TASKHASH_task-%s" % task, taskhash[task])
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return h
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def writeout_file_checksum_cache(self):
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"""Write/update the file checksum cache onto disk"""
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if self.checksum_cache:
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self.checksum_cache.save_extras()
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self.checksum_cache.save_merge()
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else:
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bb.fetch2.fetcher_parse_save()
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bb.fetch2.fetcher_parse_done()
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def dump_sigtask(self, fn, task, stampbase, runtime):
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k = fn + "." + task
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referencestamp = stampbase
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if isinstance(runtime, str) and runtime.startswith("customfile"):
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sigfile = stampbase
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referencestamp = runtime[11:]
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elif runtime and k in self.taskhash:
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sigfile = stampbase + "." + task + ".sigdata" + "." + self.taskhash[k]
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else:
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sigfile = stampbase + "." + task + ".sigbasedata" + "." + self.basehash[k]
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bb.utils.mkdirhier(os.path.dirname(sigfile))
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data = {}
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data['task'] = task
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data['basewhitelist'] = self.basewhitelist
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data['taskwhitelist'] = self.taskwhitelist
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data['taskdeps'] = self.taskdeps[fn][task]
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data['basehash'] = self.basehash[k]
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data['gendeps'] = {}
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data['varvals'] = {}
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data['varvals'][task] = self.lookupcache[fn][task]
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for dep in self.taskdeps[fn][task]:
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if dep in self.basewhitelist:
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continue
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data['gendeps'][dep] = self.gendeps[fn][dep]
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data['varvals'][dep] = self.lookupcache[fn][dep]
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if runtime and k in self.taskhash:
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data['runtaskdeps'] = self.runtaskdeps[k]
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data['file_checksum_values'] = [(os.path.basename(f), cs) for f,cs in self.file_checksum_values[k]]
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data['runtaskhashes'] = {}
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for dep in data['runtaskdeps']:
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data['runtaskhashes'][dep] = self.taskhash[dep]
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data['taskhash'] = self.taskhash[k]
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taint = self.read_taint(fn, task, referencestamp)
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if taint:
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data['taint'] = taint
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if runtime and k in self.taints:
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if 'nostamp:' in self.taints[k]:
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data['taint'] = self.taints[k]
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fd, tmpfile = tempfile.mkstemp(dir=os.path.dirname(sigfile), prefix="sigtask.")
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try:
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with os.fdopen(fd, "wb") as stream:
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p = pickle.dump(data, stream, -1)
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stream.flush()
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os.chmod(tmpfile, 0664)
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os.rename(tmpfile, sigfile)
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except (OSError, IOError) as err:
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try:
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os.unlink(tmpfile)
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except OSError:
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pass
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raise err
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computed_basehash = calc_basehash(data)
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if computed_basehash != self.basehash[k]:
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bb.error("Basehash mismatch %s verses %s for %s" % (computed_basehash, self.basehash[k], k))
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if k in self.taskhash:
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computed_taskhash = calc_taskhash(data)
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if computed_taskhash != self.taskhash[k]:
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bb.error("Taskhash mismatch %s verses %s for %s" % (computed_taskhash, self.taskhash[k], k))
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def dump_sigs(self, dataCache, options):
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for fn in self.taskdeps:
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for task in self.taskdeps[fn]:
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k = fn + "." + task
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if k not in self.taskhash:
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continue
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if dataCache.basetaskhash[k] != self.basehash[k]:
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bb.error("Bitbake's cached basehash does not match the one we just generated (%s)!" % k)
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bb.error("The mismatched hashes were %s and %s" % (dataCache.basetaskhash[k], self.basehash[k]))
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self.dump_sigtask(fn, task, dataCache.stamp[fn], True)
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class SignatureGeneratorBasicHash(SignatureGeneratorBasic):
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name = "basichash"
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def stampfile(self, stampbase, fn, taskname, extrainfo, clean=False):
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if taskname != "do_setscene" and taskname.endswith("_setscene"):
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k = fn + "." + taskname[:-9]
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else:
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k = fn + "." + taskname
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if clean:
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h = "*"
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elif k in self.taskhash:
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h = self.taskhash[k]
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else:
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# If k is not in basehash, then error
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h = self.basehash[k]
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return ("%s.%s.%s.%s" % (stampbase, taskname, h, extrainfo)).rstrip('.')
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def stampcleanmask(self, stampbase, fn, taskname, extrainfo):
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return self.stampfile(stampbase, fn, taskname, extrainfo, clean=True)
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def invalidate_task(self, task, d, fn):
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bb.note("Tainting hash to force rebuild of task %s, %s" % (fn, task))
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bb.build.write_taint(task, d, fn)
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def dump_this_task(outfile, d):
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import bb.parse
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fn = d.getVar("BB_FILENAME", True)
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task = "do_" + d.getVar("BB_CURRENTTASK", True)
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referencestamp = bb.build.stamp_internal(task, d, None, True)
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bb.parse.siggen.dump_sigtask(fn, task, outfile, "customfile:" + referencestamp)
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def clean_basepath(a):
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b = a.rsplit("/", 2)[1] + a.rsplit("/", 2)[2]
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if a.startswith("virtual:"):
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b = b + ":" + a.rsplit(":", 1)[0]
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return b
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def clean_basepaths(a):
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b = {}
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for x in a:
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b[clean_basepath(x)] = a[x]
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return b
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def clean_basepaths_list(a):
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b = []
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for x in a:
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b.append(clean_basepath(x))
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return b
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def compare_sigfiles(a, b, recursecb = None):
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output = []
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p1 = pickle.Unpickler(open(a, "rb"))
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a_data = p1.load()
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p2 = pickle.Unpickler(open(b, "rb"))
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b_data = p2.load()
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def dict_diff(a, b, whitelist=set()):
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sa = set(a.keys())
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sb = set(b.keys())
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common = sa & sb
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changed = set()
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for i in common:
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if a[i] != b[i] and i not in whitelist:
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changed.add(i)
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added = sb - sa
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removed = sa - sb
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return changed, added, removed
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def file_checksums_diff(a, b):
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from collections import Counter
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# Handle old siginfo format
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if isinstance(a, dict):
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a = [(os.path.basename(f), cs) for f, cs in a.items()]
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if isinstance(b, dict):
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b = [(os.path.basename(f), cs) for f, cs in b.items()]
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# Compare lists, ensuring we can handle duplicate filenames if they exist
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removedcount = Counter(a)
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removedcount.subtract(b)
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addedcount = Counter(b)
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addedcount.subtract(a)
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added = []
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for x in b:
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if addedcount[x] > 0:
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addedcount[x] -= 1
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added.append(x)
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removed = []
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changed = []
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for x in a:
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if removedcount[x] > 0:
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removedcount[x] -= 1
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for y in added:
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if y[0] == x[0]:
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changed.append((x[0], x[1], y[1]))
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added.remove(y)
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break
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else:
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removed.append(x)
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added = [x[0] for x in added]
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removed = [x[0] for x in removed]
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return changed, added, removed
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if 'basewhitelist' in a_data and a_data['basewhitelist'] != b_data['basewhitelist']:
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output.append("basewhitelist changed from '%s' to '%s'" % (a_data['basewhitelist'], b_data['basewhitelist']))
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if a_data['basewhitelist'] and b_data['basewhitelist']:
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output.append("changed items: %s" % a_data['basewhitelist'].symmetric_difference(b_data['basewhitelist']))
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if 'taskwhitelist' in a_data and a_data['taskwhitelist'] != b_data['taskwhitelist']:
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output.append("taskwhitelist changed from '%s' to '%s'" % (a_data['taskwhitelist'], b_data['taskwhitelist']))
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if a_data['taskwhitelist'] and b_data['taskwhitelist']:
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output.append("changed items: %s" % a_data['taskwhitelist'].symmetric_difference(b_data['taskwhitelist']))
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if a_data['taskdeps'] != b_data['taskdeps']:
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output.append("Task dependencies changed from:\n%s\nto:\n%s" % (sorted(a_data['taskdeps']), sorted(b_data['taskdeps'])))
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if a_data['basehash'] != b_data['basehash']:
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output.append("basehash changed from %s to %s" % (a_data['basehash'], b_data['basehash']))
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changed, added, removed = dict_diff(a_data['gendeps'], b_data['gendeps'], a_data['basewhitelist'] & b_data['basewhitelist'])
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if changed:
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for dep in changed:
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output.append("List of dependencies for variable %s changed from '%s' to '%s'" % (dep, a_data['gendeps'][dep], b_data['gendeps'][dep]))
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if a_data['gendeps'][dep] and b_data['gendeps'][dep]:
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output.append("changed items: %s" % a_data['gendeps'][dep].symmetric_difference(b_data['gendeps'][dep]))
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if added:
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for dep in added:
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output.append("Dependency on variable %s was added" % (dep))
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if removed:
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for dep in removed:
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output.append("Dependency on Variable %s was removed" % (dep))
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changed, added, removed = dict_diff(a_data['varvals'], b_data['varvals'])
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if changed:
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for dep in changed:
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output.append("Variable %s value changed from '%s' to '%s'" % (dep, a_data['varvals'][dep], b_data['varvals'][dep]))
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changed, added, removed = file_checksums_diff(a_data['file_checksum_values'], b_data['file_checksum_values'])
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if changed:
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for f, old, new in changed:
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|
output.append("Checksum for file %s changed from %s to %s" % (f, old, new))
|
|
if added:
|
|
for f in added:
|
|
output.append("Dependency on checksum of file %s was added" % (f))
|
|
if removed:
|
|
for f in removed:
|
|
output.append("Dependency on checksum of file %s was removed" % (f))
|
|
|
|
|
|
if len(a_data['runtaskdeps']) != len(b_data['runtaskdeps']):
|
|
changed = ["Number of task dependencies changed"]
|
|
else:
|
|
changed = []
|
|
for idx, task in enumerate(a_data['runtaskdeps']):
|
|
a = a_data['runtaskdeps'][idx]
|
|
b = b_data['runtaskdeps'][idx]
|
|
if a_data['runtaskhashes'][a] != b_data['runtaskhashes'][b]:
|
|
changed.append("%s with hash %s\n changed to\n%s with hash %s" % (a, a_data['runtaskhashes'][a], b, b_data['runtaskhashes'][b]))
|
|
|
|
if changed:
|
|
output.append("runtaskdeps changed from %s to %s" % (clean_basepaths_list(a_data['runtaskdeps']), clean_basepaths_list(b_data['runtaskdeps'])))
|
|
output.append("\n".join(changed))
|
|
|
|
|
|
if 'runtaskhashes' in a_data and 'runtaskhashes' in b_data:
|
|
a = a_data['runtaskhashes']
|
|
b = b_data['runtaskhashes']
|
|
changed, added, removed = dict_diff(a, b)
|
|
if added:
|
|
for dep in added:
|
|
bdep_found = False
|
|
if removed:
|
|
for bdep in removed:
|
|
if b[dep] == a[bdep]:
|
|
#output.append("Dependency on task %s was replaced by %s with same hash" % (dep, bdep))
|
|
bdep_found = True
|
|
if not bdep_found:
|
|
output.append("Dependency on task %s was added with hash %s" % (clean_basepath(dep), b[dep]))
|
|
if removed:
|
|
for dep in removed:
|
|
adep_found = False
|
|
if added:
|
|
for adep in added:
|
|
if b[adep] == a[dep]:
|
|
#output.append("Dependency on task %s was replaced by %s with same hash" % (adep, dep))
|
|
adep_found = True
|
|
if not adep_found:
|
|
output.append("Dependency on task %s was removed with hash %s" % (clean_basepath(dep), a[dep]))
|
|
if changed:
|
|
for dep in changed:
|
|
output.append("Hash for dependent task %s changed from %s to %s" % (clean_basepath(dep), a[dep], b[dep]))
|
|
if callable(recursecb):
|
|
# If a dependent hash changed, might as well print the line above and then defer to the changes in
|
|
# that hash since in all likelyhood, they're the same changes this task also saw.
|
|
recout = recursecb(dep, a[dep], b[dep])
|
|
if recout:
|
|
output = [output[-1]] + recout
|
|
|
|
a_taint = a_data.get('taint', None)
|
|
b_taint = b_data.get('taint', None)
|
|
if a_taint != b_taint:
|
|
output.append("Taint (by forced/invalidated task) changed from %s to %s" % (a_taint, b_taint))
|
|
|
|
return output
|
|
|
|
|
|
def calc_basehash(sigdata):
|
|
task = sigdata['task']
|
|
basedata = sigdata['varvals'][task]
|
|
|
|
if basedata is None:
|
|
basedata = ''
|
|
|
|
alldeps = sigdata['taskdeps']
|
|
for dep in alldeps:
|
|
basedata = basedata + dep
|
|
val = sigdata['varvals'][dep]
|
|
if val is not None:
|
|
basedata = basedata + str(val)
|
|
|
|
return hashlib.md5(basedata).hexdigest()
|
|
|
|
def calc_taskhash(sigdata):
|
|
data = sigdata['basehash']
|
|
|
|
for dep in sigdata['runtaskdeps']:
|
|
data = data + sigdata['runtaskhashes'][dep]
|
|
|
|
for c in sigdata['file_checksum_values']:
|
|
data = data + c[1]
|
|
|
|
if 'taint' in sigdata:
|
|
if 'nostamp:' in sigdata['taint']:
|
|
data = data + sigdata['taint'][8:]
|
|
else:
|
|
data = data + sigdata['taint']
|
|
|
|
return hashlib.md5(data).hexdigest()
|
|
|
|
|
|
def dump_sigfile(a):
|
|
output = []
|
|
|
|
p1 = pickle.Unpickler(open(a, "rb"))
|
|
a_data = p1.load()
|
|
|
|
output.append("basewhitelist: %s" % (a_data['basewhitelist']))
|
|
|
|
output.append("taskwhitelist: %s" % (a_data['taskwhitelist']))
|
|
|
|
output.append("Task dependencies: %s" % (sorted(a_data['taskdeps'])))
|
|
|
|
output.append("basehash: %s" % (a_data['basehash']))
|
|
|
|
for dep in a_data['gendeps']:
|
|
output.append("List of dependencies for variable %s is %s" % (dep, a_data['gendeps'][dep]))
|
|
|
|
for dep in a_data['varvals']:
|
|
output.append("Variable %s value is %s" % (dep, a_data['varvals'][dep]))
|
|
|
|
if 'runtaskdeps' in a_data:
|
|
output.append("Tasks this task depends on: %s" % (a_data['runtaskdeps']))
|
|
|
|
if 'file_checksum_values' in a_data:
|
|
output.append("This task depends on the checksums of files: %s" % (a_data['file_checksum_values']))
|
|
|
|
if 'runtaskhashes' in a_data:
|
|
for dep in a_data['runtaskhashes']:
|
|
output.append("Hash for dependent task %s is %s" % (dep, a_data['runtaskhashes'][dep]))
|
|
|
|
if 'taint' in a_data:
|
|
output.append("Tainted (by forced/invalidated task): %s" % a_data['taint'])
|
|
|
|
if 'task' in a_data:
|
|
computed_basehash = calc_basehash(a_data)
|
|
output.append("Computed base hash is %s and from file %s" % (computed_basehash, a_data['basehash']))
|
|
else:
|
|
output.append("Unable to compute base hash")
|
|
|
|
computed_taskhash = calc_taskhash(a_data)
|
|
output.append("Computed task hash is %s" % computed_taskhash)
|
|
|
|
return output
|