502 lines
18 KiB
Plaintext
502 lines
18 KiB
Plaintext
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#!/usr/bin/env python3
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import os
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import sys
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import warnings
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sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
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from bb import fetch2
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import logging
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import bb
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import select
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import errno
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import signal
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import pickle
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import traceback
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import queue
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from multiprocessing import Lock
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from threading import Thread
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if sys.getfilesystemencoding() != "utf-8":
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sys.exit("Please use a locale setting which supports UTF-8 (such as LANG=en_US.UTF-8).\nPython can't change the filesystem locale after loading so we need a UTF-8 when Python starts or things won't work.")
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# Users shouldn't be running this code directly
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if len(sys.argv) != 2 or not sys.argv[1].startswith("decafbad"):
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print("bitbake-worker is meant for internal execution by bitbake itself, please don't use it standalone.")
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sys.exit(1)
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profiling = False
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if sys.argv[1].startswith("decafbadbad"):
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profiling = True
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try:
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import cProfile as profile
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except:
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import profile
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# Unbuffer stdout to avoid log truncation in the event
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# of an unorderly exit as well as to provide timely
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# updates to log files for use with tail
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try:
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if sys.stdout.name == '<stdout>':
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import fcntl
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fl = fcntl.fcntl(sys.stdout.fileno(), fcntl.F_GETFL)
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fl |= os.O_SYNC
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fcntl.fcntl(sys.stdout.fileno(), fcntl.F_SETFL, fl)
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#sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
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except:
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pass
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logger = logging.getLogger("BitBake")
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worker_pipe = sys.stdout.fileno()
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bb.utils.nonblockingfd(worker_pipe)
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# Need to guard against multiprocessing being used in child processes
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# and multiple processes trying to write to the parent at the same time
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worker_pipe_lock = None
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handler = bb.event.LogHandler()
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logger.addHandler(handler)
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if 0:
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# Code to write out a log file of all events passing through the worker
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logfilename = "/tmp/workerlogfile"
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format_str = "%(levelname)s: %(message)s"
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conlogformat = bb.msg.BBLogFormatter(format_str)
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consolelog = logging.FileHandler(logfilename)
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bb.msg.addDefaultlogFilter(consolelog)
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consolelog.setFormatter(conlogformat)
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logger.addHandler(consolelog)
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worker_queue = queue.Queue()
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def worker_fire(event, d):
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data = b"<event>" + pickle.dumps(event) + b"</event>"
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worker_fire_prepickled(data)
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def worker_fire_prepickled(event):
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global worker_queue
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worker_queue.put(event)
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#
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# We can end up with write contention with the cooker, it can be trying to send commands
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# and we can be trying to send event data back. Therefore use a separate thread for writing
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# back data to cooker.
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#
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worker_thread_exit = False
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def worker_flush(worker_queue):
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worker_queue_int = b""
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global worker_pipe, worker_thread_exit
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while True:
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try:
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worker_queue_int = worker_queue_int + worker_queue.get(True, 1)
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except queue.Empty:
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pass
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while (worker_queue_int or not worker_queue.empty()):
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try:
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(_, ready, _) = select.select([], [worker_pipe], [], 1)
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if not worker_queue.empty():
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worker_queue_int = worker_queue_int + worker_queue.get()
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written = os.write(worker_pipe, worker_queue_int)
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worker_queue_int = worker_queue_int[written:]
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except (IOError, OSError) as e:
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if e.errno != errno.EAGAIN and e.errno != errno.EPIPE:
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raise
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if worker_thread_exit and worker_queue.empty() and not worker_queue_int:
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return
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worker_thread = Thread(target=worker_flush, args=(worker_queue,))
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worker_thread.start()
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def worker_child_fire(event, d):
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global worker_pipe
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global worker_pipe_lock
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data = b"<event>" + pickle.dumps(event) + b"</event>"
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try:
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worker_pipe_lock.acquire()
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worker_pipe.write(data)
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worker_pipe_lock.release()
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except IOError:
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sigterm_handler(None, None)
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raise
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bb.event.worker_fire = worker_fire
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lf = None
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#lf = open("/tmp/workercommandlog", "w+")
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def workerlog_write(msg):
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if lf:
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lf.write(msg)
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lf.flush()
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def sigterm_handler(signum, frame):
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signal.signal(signal.SIGTERM, signal.SIG_DFL)
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os.killpg(0, signal.SIGTERM)
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sys.exit()
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def fork_off_task(cfg, data, databuilder, workerdata, fn, task, taskname, appends, taskdepdata, extraconfigdata, quieterrors=False, dry_run_exec=False):
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# We need to setup the environment BEFORE the fork, since
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# a fork() or exec*() activates PSEUDO...
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envbackup = {}
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fakeenv = {}
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umask = None
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taskdep = workerdata["taskdeps"][fn]
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if 'umask' in taskdep and taskname in taskdep['umask']:
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# umask might come in as a number or text string..
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try:
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umask = int(taskdep['umask'][taskname],8)
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except TypeError:
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umask = taskdep['umask'][taskname]
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dry_run = cfg.dry_run or dry_run_exec
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# We can't use the fakeroot environment in a dry run as it possibly hasn't been built
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if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not dry_run:
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envvars = (workerdata["fakerootenv"][fn] or "").split()
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for key, value in (var.split('=') for var in envvars):
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envbackup[key] = os.environ.get(key)
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os.environ[key] = value
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fakeenv[key] = value
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fakedirs = (workerdata["fakerootdirs"][fn] or "").split()
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for p in fakedirs:
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bb.utils.mkdirhier(p)
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logger.debug(2, 'Running %s:%s under fakeroot, fakedirs: %s' %
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(fn, taskname, ', '.join(fakedirs)))
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else:
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envvars = (workerdata["fakerootnoenv"][fn] or "").split()
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for key, value in (var.split('=') for var in envvars):
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envbackup[key] = os.environ.get(key)
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os.environ[key] = value
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fakeenv[key] = value
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sys.stdout.flush()
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sys.stderr.flush()
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try:
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pipein, pipeout = os.pipe()
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pipein = os.fdopen(pipein, 'rb', 4096)
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pipeout = os.fdopen(pipeout, 'wb', 0)
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pid = os.fork()
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except OSError as e:
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logger.critical("fork failed: %d (%s)" % (e.errno, e.strerror))
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sys.exit(1)
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if pid == 0:
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def child():
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global worker_pipe
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global worker_pipe_lock
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pipein.close()
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signal.signal(signal.SIGTERM, sigterm_handler)
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# Let SIGHUP exit as SIGTERM
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signal.signal(signal.SIGHUP, sigterm_handler)
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bb.utils.signal_on_parent_exit("SIGTERM")
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# Save out the PID so that the event can include it the
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# events
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bb.event.worker_pid = os.getpid()
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bb.event.worker_fire = worker_child_fire
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worker_pipe = pipeout
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worker_pipe_lock = Lock()
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# Make the child the process group leader and ensure no
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# child process will be controlled by the current terminal
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# This ensures signals sent to the controlling terminal like Ctrl+C
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# don't stop the child processes.
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os.setsid()
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# No stdin
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newsi = os.open(os.devnull, os.O_RDWR)
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os.dup2(newsi, sys.stdin.fileno())
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if umask:
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os.umask(umask)
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try:
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bb_cache = bb.cache.NoCache(databuilder)
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(realfn, virtual, mc) = bb.cache.virtualfn2realfn(fn)
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the_data = databuilder.mcdata[mc]
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the_data.setVar("BB_WORKERCONTEXT", "1")
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the_data.setVar("BB_TASKDEPDATA", taskdepdata)
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if cfg.limited_deps:
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the_data.setVar("BB_LIMITEDDEPS", "1")
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the_data.setVar("BUILDNAME", workerdata["buildname"])
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the_data.setVar("DATE", workerdata["date"])
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the_data.setVar("TIME", workerdata["time"])
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for varname, value in extraconfigdata.items():
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the_data.setVar(varname, value)
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bb.parse.siggen.set_taskdata(workerdata["sigdata"])
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ret = 0
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the_data = bb_cache.loadDataFull(fn, appends)
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the_data.setVar('BB_TASKHASH', workerdata["runq_hash"][task])
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bb.utils.set_process_name("%s:%s" % (the_data.getVar("PN"), taskname.replace("do_", "")))
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# exported_vars() returns a generator which *cannot* be passed to os.environ.update()
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# successfully. We also need to unset anything from the environment which shouldn't be there
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exports = bb.data.exported_vars(the_data)
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bb.utils.empty_environment()
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for e, v in exports:
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os.environ[e] = v
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for e in fakeenv:
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os.environ[e] = fakeenv[e]
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the_data.setVar(e, fakeenv[e])
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the_data.setVarFlag(e, 'export', "1")
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task_exports = the_data.getVarFlag(taskname, 'exports')
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if task_exports:
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for e in task_exports.split():
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the_data.setVarFlag(e, 'export', '1')
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v = the_data.getVar(e)
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if v is not None:
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os.environ[e] = v
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if quieterrors:
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the_data.setVarFlag(taskname, "quieterrors", "1")
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except Exception:
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if not quieterrors:
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logger.critical(traceback.format_exc())
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os._exit(1)
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try:
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if dry_run:
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return 0
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return bb.build.exec_task(fn, taskname, the_data, cfg.profile)
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except:
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os._exit(1)
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if not profiling:
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os._exit(child())
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else:
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profname = "profile-%s.log" % (fn.replace("/", "-") + "-" + taskname)
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prof = profile.Profile()
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try:
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ret = profile.Profile.runcall(prof, child)
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finally:
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prof.dump_stats(profname)
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bb.utils.process_profilelog(profname)
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os._exit(ret)
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else:
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for key, value in iter(envbackup.items()):
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if value is None:
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del os.environ[key]
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else:
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os.environ[key] = value
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return pid, pipein, pipeout
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class runQueueWorkerPipe():
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"""
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Abstraction for a pipe between a worker thread and the worker server
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"""
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def __init__(self, pipein, pipeout):
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self.input = pipein
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if pipeout:
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pipeout.close()
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bb.utils.nonblockingfd(self.input)
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self.queue = b""
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def read(self):
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start = len(self.queue)
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try:
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self.queue = self.queue + (self.input.read(102400) or b"")
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except (OSError, IOError) as e:
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if e.errno != errno.EAGAIN:
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raise
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end = len(self.queue)
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index = self.queue.find(b"</event>")
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while index != -1:
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worker_fire_prepickled(self.queue[:index+8])
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self.queue = self.queue[index+8:]
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index = self.queue.find(b"</event>")
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return (end > start)
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def close(self):
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while self.read():
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continue
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if len(self.queue) > 0:
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print("Warning, worker child left partial message: %s" % self.queue)
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self.input.close()
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normalexit = False
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class BitbakeWorker(object):
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def __init__(self, din):
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self.input = din
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bb.utils.nonblockingfd(self.input)
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self.queue = b""
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self.cookercfg = None
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self.databuilder = None
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self.data = None
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self.extraconfigdata = None
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self.build_pids = {}
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self.build_pipes = {}
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signal.signal(signal.SIGTERM, self.sigterm_exception)
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# Let SIGHUP exit as SIGTERM
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signal.signal(signal.SIGHUP, self.sigterm_exception)
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if "beef" in sys.argv[1]:
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bb.utils.set_process_name("Worker (Fakeroot)")
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else:
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bb.utils.set_process_name("Worker")
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def sigterm_exception(self, signum, stackframe):
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if signum == signal.SIGTERM:
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bb.warn("Worker received SIGTERM, shutting down...")
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elif signum == signal.SIGHUP:
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bb.warn("Worker received SIGHUP, shutting down...")
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self.handle_finishnow(None)
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signal.signal(signal.SIGTERM, signal.SIG_DFL)
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os.kill(os.getpid(), signal.SIGTERM)
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def serve(self):
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while True:
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(ready, _, _) = select.select([self.input] + [i.input for i in self.build_pipes.values()], [] , [], 1)
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if self.input in ready:
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try:
|
||
|
|
r = self.input.read()
|
||
|
|
if len(r) == 0:
|
||
|
|
# EOF on pipe, server must have terminated
|
||
|
|
self.sigterm_exception(signal.SIGTERM, None)
|
||
|
|
self.queue = self.queue + r
|
||
|
|
except (OSError, IOError):
|
||
|
|
pass
|
||
|
|
if len(self.queue):
|
||
|
|
self.handle_item(b"cookerconfig", self.handle_cookercfg)
|
||
|
|
self.handle_item(b"extraconfigdata", self.handle_extraconfigdata)
|
||
|
|
self.handle_item(b"workerdata", self.handle_workerdata)
|
||
|
|
self.handle_item(b"runtask", self.handle_runtask)
|
||
|
|
self.handle_item(b"finishnow", self.handle_finishnow)
|
||
|
|
self.handle_item(b"ping", self.handle_ping)
|
||
|
|
self.handle_item(b"quit", self.handle_quit)
|
||
|
|
|
||
|
|
for pipe in self.build_pipes:
|
||
|
|
if self.build_pipes[pipe].input in ready:
|
||
|
|
self.build_pipes[pipe].read()
|
||
|
|
if len(self.build_pids):
|
||
|
|
while self.process_waitpid():
|
||
|
|
continue
|
||
|
|
|
||
|
|
|
||
|
|
def handle_item(self, item, func):
|
||
|
|
if self.queue.startswith(b"<" + item + b">"):
|
||
|
|
index = self.queue.find(b"</" + item + b">")
|
||
|
|
while index != -1:
|
||
|
|
func(self.queue[(len(item) + 2):index])
|
||
|
|
self.queue = self.queue[(index + len(item) + 3):]
|
||
|
|
index = self.queue.find(b"</" + item + b">")
|
||
|
|
|
||
|
|
def handle_cookercfg(self, data):
|
||
|
|
self.cookercfg = pickle.loads(data)
|
||
|
|
self.databuilder = bb.cookerdata.CookerDataBuilder(self.cookercfg, worker=True)
|
||
|
|
self.databuilder.parseBaseConfiguration()
|
||
|
|
self.data = self.databuilder.data
|
||
|
|
|
||
|
|
def handle_extraconfigdata(self, data):
|
||
|
|
self.extraconfigdata = pickle.loads(data)
|
||
|
|
|
||
|
|
def handle_workerdata(self, data):
|
||
|
|
self.workerdata = pickle.loads(data)
|
||
|
|
bb.msg.loggerDefaultDebugLevel = self.workerdata["logdefaultdebug"]
|
||
|
|
bb.msg.loggerDefaultVerbose = self.workerdata["logdefaultverbose"]
|
||
|
|
bb.msg.loggerVerboseLogs = self.workerdata["logdefaultverboselogs"]
|
||
|
|
bb.msg.loggerDefaultDomains = self.workerdata["logdefaultdomain"]
|
||
|
|
for mc in self.databuilder.mcdata:
|
||
|
|
self.databuilder.mcdata[mc].setVar("PRSERV_HOST", self.workerdata["prhost"])
|
||
|
|
|
||
|
|
def handle_ping(self, _):
|
||
|
|
workerlog_write("Handling ping\n")
|
||
|
|
|
||
|
|
logger.warning("Pong from bitbake-worker!")
|
||
|
|
|
||
|
|
def handle_quit(self, data):
|
||
|
|
workerlog_write("Handling quit\n")
|
||
|
|
|
||
|
|
global normalexit
|
||
|
|
normalexit = True
|
||
|
|
sys.exit(0)
|
||
|
|
|
||
|
|
def handle_runtask(self, data):
|
||
|
|
fn, task, taskname, quieterrors, appends, taskdepdata, dry_run_exec = pickle.loads(data)
|
||
|
|
workerlog_write("Handling runtask %s %s %s\n" % (task, fn, taskname))
|
||
|
|
|
||
|
|
pid, pipein, pipeout = fork_off_task(self.cookercfg, self.data, self.databuilder, self.workerdata, fn, task, taskname, appends, taskdepdata, self.extraconfigdata, quieterrors, dry_run_exec)
|
||
|
|
|
||
|
|
self.build_pids[pid] = task
|
||
|
|
self.build_pipes[pid] = runQueueWorkerPipe(pipein, pipeout)
|
||
|
|
|
||
|
|
def process_waitpid(self):
|
||
|
|
"""
|
||
|
|
Return none is there are no processes awaiting result collection, otherwise
|
||
|
|
collect the process exit codes and close the information pipe.
|
||
|
|
"""
|
||
|
|
try:
|
||
|
|
pid, status = os.waitpid(-1, os.WNOHANG)
|
||
|
|
if pid == 0 or os.WIFSTOPPED(status):
|
||
|
|
return False
|
||
|
|
except OSError:
|
||
|
|
return False
|
||
|
|
|
||
|
|
workerlog_write("Exit code of %s for pid %s\n" % (status, pid))
|
||
|
|
|
||
|
|
if os.WIFEXITED(status):
|
||
|
|
status = os.WEXITSTATUS(status)
|
||
|
|
elif os.WIFSIGNALED(status):
|
||
|
|
# Per shell conventions for $?, when a process exits due to
|
||
|
|
# a signal, we return an exit code of 128 + SIGNUM
|
||
|
|
status = 128 + os.WTERMSIG(status)
|
||
|
|
|
||
|
|
task = self.build_pids[pid]
|
||
|
|
del self.build_pids[pid]
|
||
|
|
|
||
|
|
self.build_pipes[pid].close()
|
||
|
|
del self.build_pipes[pid]
|
||
|
|
|
||
|
|
worker_fire_prepickled(b"<exitcode>" + pickle.dumps((task, status)) + b"</exitcode>")
|
||
|
|
|
||
|
|
return True
|
||
|
|
|
||
|
|
def handle_finishnow(self, _):
|
||
|
|
if self.build_pids:
|
||
|
|
logger.info("Sending SIGTERM to remaining %s tasks", len(self.build_pids))
|
||
|
|
for k, v in iter(self.build_pids.items()):
|
||
|
|
try:
|
||
|
|
os.kill(-k, signal.SIGTERM)
|
||
|
|
os.waitpid(-1, 0)
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
for pipe in self.build_pipes:
|
||
|
|
self.build_pipes[pipe].read()
|
||
|
|
|
||
|
|
try:
|
||
|
|
worker = BitbakeWorker(os.fdopen(sys.stdin.fileno(), 'rb'))
|
||
|
|
if not profiling:
|
||
|
|
worker.serve()
|
||
|
|
else:
|
||
|
|
profname = "profile-worker.log"
|
||
|
|
prof = profile.Profile()
|
||
|
|
try:
|
||
|
|
profile.Profile.runcall(prof, worker.serve)
|
||
|
|
finally:
|
||
|
|
prof.dump_stats(profname)
|
||
|
|
bb.utils.process_profilelog(profname)
|
||
|
|
except BaseException as e:
|
||
|
|
if not normalexit:
|
||
|
|
import traceback
|
||
|
|
sys.stderr.write(traceback.format_exc())
|
||
|
|
sys.stderr.write(str(e))
|
||
|
|
|
||
|
|
worker_thread_exit = True
|
||
|
|
worker_thread.join()
|
||
|
|
|
||
|
|
workerlog_write("exitting")
|
||
|
|
sys.exit(0)
|