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#
# Copyright 2009 - 2013 Clark Williams <williams@redhat.com>
# Copyright 2012 - 2013 David Sommerseth <davids@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# For the avoidance of doubt the "preferred form" of this code is one which
# is in an open unpatent encumbered format. Where cryptographic key signing
# forms part of the process of creating an executable the information
# including keys needed to generate an equivalently functional executable
# are deemed to be part of the source code.
#
import sys, os, glob, subprocess
from signal import SIGTERM
from rteval.modules import rtevalRuntimeError
from rteval.modules.loads import CommandLineLoad
from rteval.Log import Log
kernel_prefix="linux-2.6"
class Kcompile(CommandLineLoad):
def __init__(self, config, logger):
CommandLineLoad.__init__(self, "kcompile", config, logger)
def _WorkloadSetup(self):
# find our source tarball
if self._cfg.has_key('tarball'):
tarfile = os.path.join(self.srcdir, self._cfg.tarfile)
if not os.path.exists(tarfile):
raise rtevalRuntimeError(self, " tarfile %s does not exist!" % tarfile)
self.source = tarfile
else:
tarfiles = glob.glob(os.path.join(self.srcdir, "%s*" % kernel_prefix))
if len(tarfiles):
self.source = tarfiles[0]
else:
raise rtevalRuntimeError(self, " no kernel tarballs found in %s" % self.srcdir)
# check for existing directory
kdir=None
names=os.listdir(self.builddir)
for d in names:
if d.startswith(kernel_prefix):
kdir=d
break
if kdir == None:
self._log(Log.DEBUG, "unpacking kernel tarball")
tarargs = ['tar', '-C', self.builddir, '-x']
if self.source.endswith(".bz2"):
tarargs.append("-j")
elif self.source.endswith(".gz"):
tarargs.append("-z")
tarargs.append("-f")
tarargs.append(self.source)
try:
subprocess.call(tarargs)
except:
self._log(Log.DEBUG, "untar'ing kernel self.source failed!")
sys.exit(-1)
names = os.listdir(self.builddir)
for d in names:
self._log(Log.DEBUG, "checking %s" % d)
if d.startswith(kernel_prefix):
kdir=d
break
if kdir == None:
raise rtevalRuntimeError(self, "Can't find kernel directory!")
self.jobs = 1 # We only run one instance of the kcompile job
self.mydir = os.path.join(self.builddir, kdir)
self._log(Log.DEBUG, "mydir = %s" % self.mydir)
def _WorkloadBuild(self):
self._log(Log.DEBUG, "setting up all module config file in %s" % self.mydir)
null = os.open("/dev/null", os.O_RDWR)
if self._logging:
out = self.open_logfile("kcompile-build.stdout")
err = self.open_logfile("kcompile-build.stderr")
else:
out = err = null
# clean up from potential previous run
try:
ret = subprocess.call(["make", "-C", self.mydir, "mrproper", "allmodconfig"],
stdin=null, stdout=out, stderr=err)
if ret:
raise rtevalRuntimeError(self, "kcompile setup failed: %d" % ret)
except KeyboardInterrupt, m:
self._log(Log.DEBUG, "keyboard interrupt, aborting")
return
self._log(Log.DEBUG, "ready to run")
os.close(null)
if self._logging:
os.close(out)
os.close(err)
self._setReady()
def __calc_numjobs(self):
mult = int(self._cfg.setdefault('jobspercore', 1))
mem = self.memsize[0]
if self.memsize[1] == 'KB':
mem = mem / (1024.0 * 1024.0)
elif self.memsize[1] == 'MB':
mem = mem / 1024.0
elif self.memsize[1] == 'TB':
mem = mem * 1024
ratio = float(mem) / float(self.num_cpus)
if ratio > 1.0:
njobs = self.num_cpus * mult
else:
self._log(Log.DEBUG, "Low memory system (%f GB/core)! Dropping jobs to one per core" % ratio)
njobs = self.num_cpus
return njobs
def _WorkloadPrepare(self):
self.__nullfd = os.open("/dev/null", os.O_RDWR)
if self._logging:
self.__outfd = self.open_logfile("kcompile.stdout")
self.__errfd = self.open_logfile("kcompile.stderr")
else:
self.__outfd = self.__errfd = self.__nullfd
self.jobs = self.__calc_numjobs()
self._log(Log.DEBUG, "starting loop (jobs: %d)" % self.jobs)
self.args = ["make", "-C", self.mydir,
"-j%d" % self.jobs ]
self.__kcompileproc = None
def _WorkloadTask(self):
if not self.__kcompileproc or self.__kcompileproc.poll() is not None:
# If kcompile has not been kicked off yet, or have completed,
# restart it
self._log(Log.DEBUG, "Kicking off kcompile: %s" % " ".join(self.args))
self.__kcompileproc = subprocess.Popen(self.args,
stdin=self.__nullfd,
stdout=self.__outfd,
stderr=self.__errfd)
def WorkloadAlive(self):
# Let _WorkloadTask() kick off new runs, if it stops - thus
# kcompile will always be alive
return True
def _WorkloadCleanup(self):
self._log(Log.DEBUG, "out of stopevent loop")
if self.__kcompileproc.poll() == None:
self._log(Log.DEBUG, "killing compile job with SIGTERM")
os.kill(self.__kcompileproc.pid, SIGTERM)
self.__kcompileproc.wait()
os.close(self.__nullfd)
del self.__nullfd
if self._logging:
os.close(self.__outfd)
del self.__outfd
os.close(self.__errfd)
del self.__errfd
del self.__kcompileproc
self._setFinished()
def ModuleParameters():
return {"source": {"descr": "Source tar ball",
"default": "linux-2.6.21.tar.bz2",
"metavar": "TARBALL"},
"jobspercore": {"descr": "Number of working threads per core",
"default": 2,
"metavar": "NUM"}
}
def create(config, logger):
return Kcompile(config, logger)
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