647 lines
28 KiB
Python
647 lines
28 KiB
Python
#!/usr/bin/env python
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# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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"""
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BitBake 'RunQueue' implementation
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Handles preparation and execution of a queue of tasks
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"""
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# Copyright (C) 2006-2007 Richard Purdie
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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from bb import msg, data, event, mkdirhier, utils
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from sets import Set
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import bb, os, sys
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import signal
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class TaskFailure(Exception):
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"""Exception raised when a task in a runqueue fails"""
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def __init__(self, x):
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self.args = x
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class RunQueueStats:
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"""
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Holds statistics on the tasks handled by the associated runQueue
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"""
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def __init__(self):
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self.completed = 0
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self.skipped = 0
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self.failed = 0
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def taskFailed(self):
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self.failed = self.failed + 1
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def taskCompleted(self):
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self.completed = self.completed + 1
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def taskSkipped(self):
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self.skipped = self.skipped + 1
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class RunQueue:
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"""
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BitBake Run Queue implementation
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"""
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def __init__(self, cooker, cfgData, dataCache, taskData, targets):
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self.reset_runqueue()
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self.cooker = cooker
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self.dataCache = dataCache
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self.taskData = taskData
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self.targets = targets
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self.number_tasks = int(bb.data.getVar("BB_NUMBER_THREADS", cfgData) or 1)
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self.multi_provider_whitelist = (bb.data.getVar("MULTI_PROVIDER_WHITELIST", cfgData) or "").split()
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def reset_runqueue(self):
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self.runq_fnid = []
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self.runq_task = []
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self.runq_depends = []
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self.runq_revdeps = []
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self.runq_weight = []
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self.prio_map = []
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def get_user_idstring(self, task):
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fn = self.taskData.fn_index[self.runq_fnid[task]]
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taskname = self.runq_task[task]
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return "%s, %s" % (fn, taskname)
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def prepare_runqueue(self):
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"""
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Turn a set of taskData into a RunQueue and compute data needed
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to optimise the execution order.
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"""
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depends = []
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runq_weight1 = []
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runq_build = []
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runq_done = []
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taskData = self.taskData
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if len(taskData.tasks_name) == 0:
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# Nothing to do
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return
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bb.msg.note(1, bb.msg.domain.RunQueue, "Preparing runqueue")
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for task in range(len(taskData.tasks_name)):
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fnid = taskData.tasks_fnid[task]
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fn = taskData.fn_index[fnid]
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task_deps = self.dataCache.task_deps[fn]
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if fnid not in taskData.failed_fnids:
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depends = taskData.tasks_tdepends[task]
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# Resolve Depends
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if 'deptask' in task_deps and taskData.tasks_name[task] in task_deps['deptask']:
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taskname = task_deps['deptask'][taskData.tasks_name[task]]
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for depid in taskData.depids[fnid]:
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# Won't be in build_targets if ASSUME_PROVIDED
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if depid in taskData.build_targets:
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depdata = taskData.build_targets[depid][0]
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if depdata is not None:
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dep = taskData.fn_index[depdata]
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depends.append(taskData.gettask_id(dep, taskname))
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# Resolve Runtime Depends
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if 'rdeptask' in task_deps and taskData.tasks_name[task] in task_deps['rdeptask']:
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taskname = task_deps['rdeptask'][taskData.tasks_name[task]]
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for depid in taskData.rdepids[fnid]:
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if depid in taskData.run_targets:
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depdata = taskData.run_targets[depid][0]
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if depdata is not None:
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dep = taskData.fn_index[depdata]
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depends.append(taskData.gettask_id(dep, taskname))
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idepends = taskData.tasks_idepends[task]
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for idepend in idepends:
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depid = int(idepend.split(":")[0])
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if depid in taskData.build_targets:
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# Won't be in build_targets if ASSUME_PROVIDED
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depdata = taskData.build_targets[depid][0]
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if depdata is not None:
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dep = taskData.fn_index[depdata]
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depends.append(taskData.gettask_id(dep, idepend.split(":")[1]))
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def add_recursive_build(depid, depfnid):
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"""
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Add build depends of depid to depends
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(if we've not see it before)
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(calls itself recursively)
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"""
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if str(depid) in dep_seen:
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return
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dep_seen.append(depid)
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if depid in taskData.build_targets:
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depdata = taskData.build_targets[depid][0]
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if depdata is not None:
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dep = taskData.fn_index[depdata]
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idepends = []
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# Need to avoid creating new tasks here
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taskid = taskData.gettask_id(dep, taskname, False)
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if taskid is not None:
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depends.append(taskid)
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fnid = taskData.tasks_fnid[taskid]
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idepends = taskData.tasks_idepends[taskid]
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#print "Added %s (%s) due to %s" % (taskid, taskData.fn_index[fnid], taskData.fn_index[depfnid])
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else:
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fnid = taskData.getfn_id(dep)
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for nextdepid in taskData.depids[fnid]:
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if nextdepid not in dep_seen:
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add_recursive_build(nextdepid, fnid)
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for nextdepid in taskData.rdepids[fnid]:
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if nextdepid not in rdep_seen:
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add_recursive_run(nextdepid, fnid)
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for idepend in idepends:
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nextdepid = int(idepend.split(":")[0])
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if nextdepid not in dep_seen:
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add_recursive_build(nextdepid, fnid)
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def add_recursive_run(rdepid, depfnid):
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"""
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Add runtime depends of rdepid to depends
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(if we've not see it before)
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(calls itself recursively)
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"""
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if str(rdepid) in rdep_seen:
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return
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rdep_seen.append(rdepid)
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if rdepid in taskData.run_targets:
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depdata = taskData.run_targets[rdepid][0]
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if depdata is not None:
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dep = taskData.fn_index[depdata]
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idepends = []
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# Need to avoid creating new tasks here
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taskid = taskData.gettask_id(dep, taskname, False)
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if taskid is not None:
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depends.append(taskid)
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fnid = taskData.tasks_fnid[taskid]
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idepends = taskData.tasks_idepends[taskid]
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#print "Added %s (%s) due to %s" % (taskid, taskData.fn_index[fnid], taskData.fn_index[depfnid])
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else:
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fnid = taskData.getfn_id(dep)
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for nextdepid in taskData.depids[fnid]:
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if nextdepid not in dep_seen:
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add_recursive_build(nextdepid, fnid)
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for nextdepid in taskData.rdepids[fnid]:
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if nextdepid not in rdep_seen:
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add_recursive_run(nextdepid, fnid)
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for idepend in idepends:
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nextdepid = int(idepend.split(":")[0])
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if nextdepid not in dep_seen:
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add_recursive_build(nextdepid, fnid)
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# Resolve Recursive Runtime Depends
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# Also includes all thier build depends, intertask depends and runtime depends
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if 'recrdeptask' in task_deps and taskData.tasks_name[task] in task_deps['recrdeptask']:
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for taskname in task_deps['recrdeptask'][taskData.tasks_name[task]].split():
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dep_seen = []
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rdep_seen = []
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idep_seen = []
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for depid in taskData.depids[fnid]:
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add_recursive_build(depid, fnid)
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for rdepid in taskData.rdepids[fnid]:
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add_recursive_run(rdepid, fnid)
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for idepend in idepends:
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depid = int(idepend.split(":")[0])
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add_recursive_build(depid, fnid)
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#Prune self references
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if task in depends:
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newdep = []
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bb.msg.debug(2, bb.msg.domain.RunQueue, "Task %s (%s %s) contains self reference! %s" % (task, taskData.fn_index[taskData.tasks_fnid[task]], taskData.tasks_name[task], depends))
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for dep in depends:
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if task != dep:
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newdep.append(dep)
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depends = newdep
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self.runq_fnid.append(taskData.tasks_fnid[task])
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self.runq_task.append(taskData.tasks_name[task])
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self.runq_depends.append(Set(depends))
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self.runq_revdeps.append(Set())
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self.runq_weight.append(0)
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runq_weight1.append(0)
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runq_build.append(0)
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runq_done.append(0)
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bb.msg.note(2, bb.msg.domain.RunQueue, "Marking Active Tasks")
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def mark_active(listid, depth):
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"""
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Mark an item as active along with its depends
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(calls itself recursively)
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"""
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if runq_build[listid] == 1:
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return
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runq_build[listid] = 1
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depends = self.runq_depends[listid]
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for depend in depends:
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mark_active(depend, depth+1)
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for target in self.targets:
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targetid = taskData.getbuild_id(target[0])
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if targetid not in taskData.build_targets:
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continue
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if targetid in taskData.failed_deps:
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continue
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fnid = taskData.build_targets[targetid][0]
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# Remove stamps for targets if force mode active
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if self.cooker.configuration.force:
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fn = taskData.fn_index[fnid]
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bb.msg.note(2, bb.msg.domain.RunQueue, "Remove stamp %s, %s" % (target[1], fn))
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bb.build.del_stamp(target[1], self.dataCache, fn)
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if fnid in taskData.failed_fnids:
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continue
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listid = taskData.tasks_lookup[fnid][target[1]]
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mark_active(listid, 1)
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# Prune inactive tasks
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maps = []
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delcount = 0
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for listid in range(len(self.runq_fnid)):
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if runq_build[listid-delcount] == 1:
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maps.append(listid-delcount)
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else:
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del self.runq_fnid[listid-delcount]
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del self.runq_task[listid-delcount]
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del self.runq_depends[listid-delcount]
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del self.runq_weight[listid-delcount]
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del runq_weight1[listid-delcount]
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del runq_build[listid-delcount]
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del runq_done[listid-delcount]
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del self.runq_revdeps[listid-delcount]
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delcount = delcount + 1
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maps.append(-1)
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if len(self.runq_fnid) == 0:
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if not taskData.abort:
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bb.msg.note(1, bb.msg.domain.RunQueue, "All possible tasks have been run but build incomplete (--continue mode). See errors above for incomplete tasks.")
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return
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bb.msg.fatal(bb.msg.domain.RunQueue, "No active tasks and not in --continue mode?! Please report this bug.")
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bb.msg.note(2, bb.msg.domain.RunQueue, "Pruned %s inactive tasks, %s left" % (delcount, len(self.runq_fnid)))
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for listid in range(len(self.runq_fnid)):
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newdeps = []
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origdeps = self.runq_depends[listid]
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for origdep in origdeps:
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if maps[origdep] == -1:
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bb.msg.fatal(bb.msg.domain.RunQueue, "Invalid mapping - Should never happen!")
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newdeps.append(maps[origdep])
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self.runq_depends[listid] = Set(newdeps)
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bb.msg.note(2, bb.msg.domain.RunQueue, "Assign Weightings")
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for listid in range(len(self.runq_fnid)):
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for dep in self.runq_depends[listid]:
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self.runq_revdeps[dep].add(listid)
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endpoints = []
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for listid in range(len(self.runq_fnid)):
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revdeps = self.runq_revdeps[listid]
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if len(revdeps) == 0:
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runq_done[listid] = 1
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self.runq_weight[listid] = 1
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endpoints.append(listid)
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for dep in revdeps:
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if dep in self.runq_depends[listid]:
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#self.dump_data(taskData)
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bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) has circular dependency on %s (%s)" % (taskData.fn_index[self.runq_fnid[dep]], self.runq_task[dep] , taskData.fn_index[self.runq_fnid[listid]], self.runq_task[listid]))
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runq_weight1[listid] = len(revdeps)
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bb.msg.note(2, bb.msg.domain.RunQueue, "Compute totals (have %s endpoint(s))" % len(endpoints))
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while 1:
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next_points = []
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for listid in endpoints:
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for revdep in self.runq_depends[listid]:
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self.runq_weight[revdep] = self.runq_weight[revdep] + self.runq_weight[listid]
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runq_weight1[revdep] = runq_weight1[revdep] - 1
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if runq_weight1[revdep] == 0:
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next_points.append(revdep)
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runq_done[revdep] = 1
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endpoints = next_points
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if len(next_points) == 0:
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break
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# Sanity Checks
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for task in range(len(self.runq_fnid)):
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if runq_done[task] == 0:
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seen = []
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deps_seen = []
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def print_chain(taskid, finish):
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seen.append(taskid)
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for revdep in self.runq_revdeps[taskid]:
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if runq_done[revdep] == 0 and revdep not in seen and not finish:
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bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) (depends: %s)" % (revdep, self.get_user_idstring(revdep), self.runq_depends[revdep]))
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if revdep in deps_seen:
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bb.msg.error(bb.msg.domain.RunQueue, "Chain ends at Task %s (%s)" % (revdep, self.get_user_idstring(revdep)))
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finish = True
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return
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for dep in self.runq_depends[revdep]:
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deps_seen.append(dep)
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print_chain(revdep, finish)
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print_chain(task, False)
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bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) not processed!\nThis is probably a circular dependency (the chain might be printed above)." % (task, self.get_user_idstring(task)))
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if runq_weight1[task] != 0:
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bb.msg.fatal(bb.msg.domain.RunQueue, "Task %s (%s) count not zero!" % (task, self.get_user_idstring(task)))
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# Check for mulitple taska building the same provider
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prov_list = {}
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seen_fn = []
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for task in range(len(self.runq_fnid)):
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fn = taskData.fn_index[self.runq_fnid[task]]
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if fn in seen_fn:
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continue
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seen_fn.append(fn)
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for prov in self.dataCache.fn_provides[fn]:
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if prov not in prov_list:
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prov_list[prov] = [fn]
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elif fn not in prov_list[prov]:
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prov_list[prov].append(fn)
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error = False
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for prov in prov_list:
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if len(prov_list[prov]) > 1 and prov not in self.multi_provider_whitelist:
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error = True
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bb.msg.error(bb.msg.domain.RunQueue, "Multiple files due to be built which all provide %s (%s)" % (prov, " ".join(prov_list[prov])))
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#if error:
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# bb.msg.fatal(bb.msg.domain.RunQueue, "Corrupted metadata configuration detected, aborting...")
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# Make a weight sorted map
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from copy import deepcopy
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sortweight = deepcopy(self.runq_weight)
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sortweight.sort()
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copyweight = deepcopy(self.runq_weight)
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self.prio_map = []
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for weight in sortweight:
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idx = copyweight.index(weight)
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self.prio_map.append(idx)
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copyweight[idx] = -1
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self.prio_map.reverse()
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#self.dump_data(taskData)
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def execute_runqueue(self):
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"""
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Run the tasks in a queue prepared by prepare_runqueue
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Upon failure, optionally try to recover the build using any alternate providers
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(if the abort on failure configuration option isn't set)
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"""
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failures = 0
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while 1:
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failed_fnids = []
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try:
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self.execute_runqueue_internal()
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finally:
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if self.master_process:
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failed_fnids = self.finish_runqueue()
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if len(failed_fnids) == 0:
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return failures
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if self.taskData.abort:
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raise bb.runqueue.TaskFailure(failed_fnids)
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for fnid in failed_fnids:
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#print "Failure: %s %s %s" % (fnid, self.taskData.fn_index[fnid], self.runq_task[fnid])
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self.taskData.fail_fnid(fnid)
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failures = failures + 1
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self.reset_runqueue()
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self.prepare_runqueue()
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def execute_runqueue_initVars(self):
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self.stats = RunQueueStats()
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self.active_builds = 0
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self.runq_buildable = []
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self.runq_running = []
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self.runq_complete = []
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self.build_pids = {}
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self.failed_fnids = []
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self.master_process = True
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# Mark initial buildable tasks
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for task in range(len(self.runq_fnid)):
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self.runq_running.append(0)
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self.runq_complete.append(0)
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if len(self.runq_depends[task]) == 0:
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self.runq_buildable.append(1)
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else:
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self.runq_buildable.append(0)
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def task_complete(self, task):
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"""
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Mark a task as completed
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|
Look at the reverse dependencies and mark any task with
|
|
completed dependencies as buildable
|
|
"""
|
|
self.runq_complete[task] = 1
|
|
for revdep in self.runq_revdeps[task]:
|
|
if self.runq_running[revdep] == 1:
|
|
continue
|
|
if self.runq_buildable[revdep] == 1:
|
|
continue
|
|
alldeps = 1
|
|
for dep in self.runq_depends[revdep]:
|
|
if self.runq_complete[dep] != 1:
|
|
alldeps = 0
|
|
if alldeps == 1:
|
|
self.runq_buildable[revdep] = 1
|
|
fn = self.taskData.fn_index[self.runq_fnid[revdep]]
|
|
taskname = self.runq_task[revdep]
|
|
bb.msg.debug(1, bb.msg.domain.RunQueue, "Marking task %s (%s, %s) as buildable" % (revdep, fn, taskname))
|
|
|
|
def get_next_task(self):
|
|
"""
|
|
Return the id of the highest priority task that is buildable
|
|
"""
|
|
for task1 in range(len(self.runq_fnid)):
|
|
task = self.prio_map[task1]
|
|
if self.runq_running[task] == 1:
|
|
continue
|
|
if self.runq_buildable[task] == 1:
|
|
return task
|
|
return None
|
|
|
|
def execute_runqueue_internal(self):
|
|
"""
|
|
Run the tasks in a queue prepared by prepare_runqueue
|
|
"""
|
|
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Executing runqueue")
|
|
|
|
self.execute_runqueue_initVars()
|
|
|
|
if len(self.runq_fnid) == 0:
|
|
# nothing to do
|
|
return []
|
|
|
|
def sigint_handler(signum, frame):
|
|
raise KeyboardInterrupt
|
|
|
|
# Find any tasks with current stamps and remove them from the queue
|
|
for task1 in range(len(self.runq_fnid)):
|
|
task = self.prio_map[task1]
|
|
fn = self.taskData.fn_index[self.runq_fnid[task]]
|
|
taskname = self.runq_task[task]
|
|
if bb.build.stamp_is_current(taskname, self.dataCache, fn):
|
|
bb.msg.debug(2, bb.msg.domain.RunQueue, "Stamp current task %s (%s)" % (task, self.get_user_idstring(task)))
|
|
self.runq_running[task] = 1
|
|
self.task_complete(task)
|
|
self.stats.taskCompleted()
|
|
self.stats.taskSkipped()
|
|
|
|
while True:
|
|
task = self.get_next_task()
|
|
if task is not None:
|
|
fn = self.taskData.fn_index[self.runq_fnid[task]]
|
|
|
|
taskname = self.runq_task[task]
|
|
if bb.build.stamp_is_current(taskname, self.dataCache, fn):
|
|
bb.msg.debug(2, bb.msg.domain.RunQueue, "Stamp current task %s (%s)" % (task, self.get_user_idstring(task)))
|
|
self.runq_running[task] = 1
|
|
self.task_complete(task)
|
|
self.stats.taskCompleted()
|
|
self.stats.taskSkipped()
|
|
continue
|
|
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Running task %d of %d (ID: %s, %s)" % (self.stats.completed + self.active_builds + 1, len(self.runq_fnid), task, self.get_user_idstring(task)))
|
|
try:
|
|
pid = os.fork()
|
|
except OSError, e:
|
|
bb.msg.fatal(bb.msg.domain.RunQueue, "fork failed: %d (%s)" % (e.errno, e.strerror))
|
|
if pid == 0:
|
|
# Bypass master process' handling
|
|
self.master_process = False
|
|
# Stop Ctrl+C being sent to children
|
|
# signal.signal(signal.SIGINT, signal.SIG_IGN)
|
|
# Make the child the process group leader
|
|
os.setpgid(0, 0)
|
|
newsi = os.open('/dev/null', os.O_RDWR)
|
|
os.dup2(newsi, sys.stdin.fileno())
|
|
self.cooker.configuration.cmd = taskname[3:]
|
|
try:
|
|
self.cooker.tryBuild(fn, False)
|
|
except bb.build.EventException:
|
|
bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
|
|
sys.exit(1)
|
|
except:
|
|
bb.msg.error(bb.msg.domain.Build, "Build of " + fn + " " + taskname + " failed")
|
|
raise
|
|
sys.exit(0)
|
|
self.build_pids[pid] = task
|
|
self.runq_running[task] = 1
|
|
self.active_builds = self.active_builds + 1
|
|
if self.active_builds < self.number_tasks:
|
|
continue
|
|
if self.active_builds > 0:
|
|
result = os.waitpid(-1, 0)
|
|
self.active_builds = self.active_builds - 1
|
|
task = self.build_pids[result[0]]
|
|
if result[1] != 0:
|
|
del self.build_pids[result[0]]
|
|
bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task)))
|
|
self.failed_fnids.append(self.runq_fnid[task])
|
|
self.stats.taskFailed()
|
|
break
|
|
self.task_complete(task)
|
|
self.stats.taskCompleted()
|
|
del self.build_pids[result[0]]
|
|
continue
|
|
return
|
|
|
|
def finish_runqueue(self):
|
|
try:
|
|
while self.active_builds > 0:
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Waiting for %s active tasks to finish" % self.active_builds)
|
|
tasknum = 1
|
|
for k, v in self.build_pids.iteritems():
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "%s: %s (%s)" % (tasknum, self.get_user_idstring(v), k))
|
|
tasknum = tasknum + 1
|
|
result = os.waitpid(-1, 0)
|
|
task = self.build_pids[result[0]]
|
|
if result[1] != 0:
|
|
bb.msg.error(bb.msg.domain.RunQueue, "Task %s (%s) failed" % (task, self.get_user_idstring(task)))
|
|
self.failed_fnids.append(self.runq_fnid[task])
|
|
self.stats.taskFailed()
|
|
del self.build_pids[result[0]]
|
|
self.active_builds = self.active_builds - 1
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed." % (self.stats.completed, self.stats.skipped, self.stats.failed))
|
|
return self.failed_fnids
|
|
except KeyboardInterrupt:
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Sending SIGINT to remaining %s tasks" % self.active_builds)
|
|
for k, v in self.build_pids.iteritems():
|
|
try:
|
|
os.kill(-k, signal.SIGINT)
|
|
except:
|
|
pass
|
|
raise
|
|
|
|
# Sanity Checks
|
|
for task in range(len(self.runq_fnid)):
|
|
if self.runq_buildable[task] == 0:
|
|
bb.msg.error(bb.msg.domain.RunQueue, "Task %s never buildable!" % task)
|
|
if self.runq_running[task] == 0:
|
|
bb.msg.error(bb.msg.domain.RunQueue, "Task %s never ran!" % task)
|
|
if self.runq_complete[task] == 0:
|
|
bb.msg.error(bb.msg.domain.RunQueue, "Task %s never completed!" % task)
|
|
|
|
bb.msg.note(1, bb.msg.domain.RunQueue, "Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed." % (self.stats.completed, self.stats.skipped, self.stats.failed))
|
|
|
|
return self.failed_fnids
|
|
|
|
def dump_data(self, taskQueue):
|
|
"""
|
|
Dump some debug information on the internal data structures
|
|
"""
|
|
bb.msg.debug(3, bb.msg.domain.RunQueue, "run_tasks:")
|
|
for task in range(len(self.runq_fnid)):
|
|
bb.msg.debug(3, bb.msg.domain.RunQueue, " (%s)%s - %s: %s Deps %s RevDeps %s" % (task,
|
|
taskQueue.fn_index[self.runq_fnid[task]],
|
|
self.runq_task[task],
|
|
self.runq_weight[task],
|
|
self.runq_depends[task],
|
|
self.runq_revdeps[task]))
|
|
|
|
bb.msg.debug(3, bb.msg.domain.RunQueue, "sorted_tasks:")
|
|
for task1 in range(len(self.runq_fnid)):
|
|
if task1 in self.prio_map:
|
|
task = self.prio_map[task1]
|
|
bb.msg.debug(3, bb.msg.domain.RunQueue, " (%s)%s - %s: %s Deps %s RevDeps %s" % (task,
|
|
taskQueue.fn_index[self.runq_fnid[task]],
|
|
self.runq_task[task],
|
|
self.runq_weight[task],
|
|
self.runq_depends[task],
|
|
self.runq_revdeps[task]))
|