*/
#include "base/misc.hh"
+#include "config/the_isa.hh"
#include "debug/TimeSync.hh"
#include "sim/full_system.hh"
#include "sim/root.hh"
void
Root::loadState(Checkpoint *cp)
{
+ SimObject::loadState(cp);
timeSyncEnable(params()->time_sync_enable);
}
+void
+Root::serialize(std::ostream &os)
+{
+ uint64_t cpt_ver = gem5CheckpointVersion;
+ SERIALIZE_SCALAR(cpt_ver);
+ SERIALIZE_SCALAR(FullSystem);
+ std::string isa = THE_ISA_STR;
+ SERIALIZE_SCALAR(isa);
+}
+
+void
+Root::unserialize(Checkpoint *cp, const std::string §ion)
+{
+ uint64_t cpt_ver = 0;
+ UNSERIALIZE_OPT_SCALAR(cpt_ver);
+ if (cpt_ver < gem5CheckpointVersion) {
+ warn("**********************************************************\n");
+ warn("!!!! Checkpoint ver %#x is older than current ver %#x !!!!\n",
+ cpt_ver, gem5CheckpointVersion);
+ warn("You might experience some issues when restoring and should run "
+ "the checkpoint upgrader (util/cpt_upgrade.py) on your "
+ "checkpoint\n");
+ warn("**********************************************************\n");
+ } else if (cpt_ver > gem5CheckpointVersion) {
+ warn("**********************************************************\n");
+ warn("!!!! Checkpoint ver %#x is newer than current ver %#x !!!!\n",
+ cpt_ver, gem5CheckpointVersion);
+ warn("Running a new checkpoint with an older version of gem5 is not "
+ "supported. While it might work, you may experience incorrect "
+ "behavior or crashes.\n");
+ warn("**********************************************************\n");
+ }
+}
+
+
bool FullSystem;
unsigned int FullSystemInt;
--- /dev/null
+#!/usr/bin/env python
+
+# Copyright (c) 2012 ARM Limited
+# All rights reserved
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder. You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Ali Saidi
+#
+
+import ConfigParser
+import sys, os
+import os.path as osp
+
+def from_0(cpt):
+ pass
+
+# An example of a translator
+def from_1(cpt):
+ if cpt.get('root','isa') == 'arm':
+ for sec in cpt.sections():
+ import re
+ # Search for all the execution contexts
+ if re.search('.*sys.*\.cpu.*\.x.\..*', sec):
+ # Update each one
+ mr = cpt.get(sec, 'miscRegs').split()
+ #mr.insert(21,0)
+ #mr.insert(26,0)
+ cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr))
+
+migrations = []
+migrations.append(from_0)
+migrations.append(from_1)
+
+verbose_print = False
+
+def verboseprint(*args):
+ if not verbose_print:
+ return
+ for arg in args:
+ print arg,
+ print
+
+def process_file(path, **kwargs):
+ if not osp.isfile(path):
+ import errno
+ raise IOError(ennro.ENOENT, "No such file", path)
+
+ verboseprint("Processing file %s...." % path)
+
+ if kwargs.get('backup', True):
+ import shutil
+ shutil.copyfile(path, path + '.bak')
+
+ cpt = ConfigParser.SafeConfigParser()
+
+ # gem5 is case sensitive with paramaters
+ cpt.optionxform = str
+
+ # Read the current data
+ cpt_file = file(path, 'r')
+ cpt.readfp(cpt_file)
+ cpt_file.close()
+
+ # Make sure we know what we're starting from
+ if not cpt.has_option('root','cpt_ver'):
+ raise LookupError("cannot determine version of checkpoint")
+
+ cpt_ver = cpt.getint('root','cpt_ver')
+
+ # If the current checkpoint is longer than the migrations list, we have a problem
+ # and someone didn't update this file
+ if cpt_ver > len(migrations):
+ raise ValueError("upgrade script is too old and needs updating")
+
+ verboseprint("\t...file is at version %#x" % cpt_ver)
+
+ if cpt_ver == len(migrations):
+ verboseprint("\t...nothing to do")
+ return
+
+ # Walk through every function from now until the end fixing the checkpoint
+ for v in xrange(cpt_ver,len(migrations)):
+ verboseprint("\t...migrating to version %#x" % (v + 1))
+ migrations[v](cpt)
+ cpt.set('root','cpt_ver', str(v + 1))
+
+ # Write the old data back
+ verboseprint("\t...completed")
+ cpt.write(file(path, 'w'))
+
+
+if __name__ == '__main__':
+ from optparse import OptionParser
+ parser = OptionParser("usage: %prog [options] <filename or directory>")
+ parser.add_option("-r", "--recurse", action="store_true",
+ help="Recurse through all subdirectories modifying "\
+ "each checkpoint that is found")
+ parser.add_option("-N", "--no-backup", action="store_false",
+ dest="backup", default=True,
+ help="Do no backup each checkpoint before modifying it")
+ parser.add_option("-v", "--verbose", action="store_true",
+ help="Print out debugging information as")
+
+ (options, args) = parser.parse_args()
+ if len(args) != 1:
+ parser.error("You must specify a checkpoint file to modify or a "\
+ "directory of checkpoints to recursively update")
+
+ verbose_print = options.verbose
+
+ # Deal with shell variables and ~
+ path = osp.expandvars(osp.expanduser(args[0]))
+
+ # Process a single file if we have it
+ if osp.isfile(path):
+ process_file(path, **vars(options))
+ # Process an entire directory
+ elif osp.isdir(path):
+ cpt_file = osp.join(path, 'm5.cpt')
+ if options.recurse:
+ # Visit very file and see if it matches
+ for root,dirs,files in os.walk(path):
+ for name in files:
+ if name == 'm5.cpt':
+ process_file(osp.join(root,name), **vars(options))
+ for dir in dirs:
+ pass
+ # Maybe someone passed a cpt.XXXXXXX directory and not m5.cpt
+ elif osp.isfile(cpt_file):
+ process_file(cpt_file, **vars(options))
+ else:
+ print "Error: checkpoint file not found at in %s " % path,
+ print "and recurse not specified"
+ sys.exit(1)
+ sys.exit(0)
+
projects / gem5.git / commitdiff