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-rw-r--r--configs/common/Simulation.py20
-rw-r--r--configs/example/memtest-ruby.py2
-rw-r--r--configs/example/memtest.py2
-rw-r--r--configs/example/rubytest.py2
-rw-r--r--configs/splash2/cluster.py2
-rw-r--r--configs/splash2/run.py2
-rw-r--r--src/python/m5/SimObject.py2
-rw-r--r--src/python/m5/simulate.py14
-rw-r--r--src/sim/Root.py25
-rw-r--r--tests/run.py2
10 files changed, 53 insertions, 20 deletions
diff --git a/configs/common/Simulation.py b/configs/common/Simulation.py
index 905e435d3..0393b0dfa 100644
--- a/configs/common/Simulation.py
+++ b/configs/common/Simulation.py
@@ -190,7 +190,7 @@ def run(options, root, testsys, cpu_class):
for i in xrange(np):
testsys.cpu[i].max_insts_any_thread = offset
- m5.instantiate(root)
+ m5.instantiate()
if options.checkpoint_restore != None:
from os.path import isdir, exists
@@ -207,7 +207,7 @@ def run(options, root, testsys, cpu_class):
fatal("Unable to find checkpoint directory %s", checkpoint_dir)
print "Restoring checkpoint ..."
- m5.restoreCheckpoint(root, checkpoint_dir)
+ m5.restoreCheckpoint(checkpoint_dir)
print "Done."
elif options.simpoint:
# assume workload 0 has the simpoint
@@ -224,7 +224,7 @@ def run(options, root, testsys, cpu_class):
options.bench, options.checkpoint_restore)
print "Restoring checkpoint ..."
- m5.restoreCheckpoint(root,checkpoint_dir)
+ m5.restoreCheckpoint(checkpoint_dir)
print "Done."
else:
dirs = listdir(cptdir)
@@ -246,8 +246,8 @@ def run(options, root, testsys, cpu_class):
maxtick = maxtick - int(cpts[cpt_num - 1])
## Restore the checkpoint
- m5.restoreCheckpoint(root,
- joinpath(cptdir, "cpt.%s" % cpts[cpt_num - 1]))
+ m5.restoreCheckpoint(joinpath(cptdir,
+ "cpt.%s" % cpts[cpt_num - 1]))
if options.standard_switch or cpu_class:
if options.standard_switch:
@@ -324,7 +324,7 @@ def run(options, root, testsys, cpu_class):
if exit_event.getCause() == \
"a thread reached the max instruction count":
- m5.checkpoint(root, joinpath(cptdir, "cpt.%s.%d" % \
+ m5.checkpoint(joinpath(cptdir, "cpt.%s.%d" % \
(options.bench, checkpoint_inst)))
print "Checkpoint written."
num_checkpoints += 1
@@ -341,7 +341,7 @@ def run(options, root, testsys, cpu_class):
exit_event = m5.simulate(when - m5.curTick())
if exit_event.getCause() == "simulate() limit reached":
- m5.checkpoint(root, joinpath(cptdir, "cpt.%d"))
+ m5.checkpoint(joinpath(cptdir, "cpt.%d"))
num_checkpoints += 1
sim_ticks = when
@@ -358,7 +358,7 @@ def run(options, root, testsys, cpu_class):
while exit_event.getCause() == "checkpoint":
exit_event = m5.simulate(sim_ticks - m5.curTick())
if exit_event.getCause() == "simulate() limit reached":
- m5.checkpoint(root, joinpath(cptdir, "cpt.%d"))
+ m5.checkpoint(joinpath(cptdir, "cpt.%d"))
num_checkpoints += 1
if exit_event.getCause() != "simulate() limit reached":
@@ -371,7 +371,7 @@ def run(options, root, testsys, cpu_class):
exit_event = m5.simulate(maxtick)
while exit_event.getCause() == "checkpoint":
- m5.checkpoint(root, joinpath(cptdir, "cpt.%d"))
+ m5.checkpoint(joinpath(cptdir, "cpt.%d"))
num_checkpoints += 1
if num_checkpoints == max_checkpoints:
exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
@@ -385,5 +385,5 @@ def run(options, root, testsys, cpu_class):
print 'Exiting @ cycle %i because %s' % (m5.curTick(), exit_cause)
if options.checkpoint_at_end:
- m5.checkpoint(root, joinpath(cptdir, "cpt.%d"))
+ m5.checkpoint(joinpath(cptdir, "cpt.%d"))
diff --git a/configs/example/memtest-ruby.py b/configs/example/memtest-ruby.py
index 709d31844..16d86f0bc 100644
--- a/configs/example/memtest-ruby.py
+++ b/configs/example/memtest-ruby.py
@@ -129,7 +129,7 @@ else:
m5.ticks.setGlobalFrequency('1ns')
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(options.maxtick)
diff --git a/configs/example/memtest.py b/configs/example/memtest.py
index d4497092b..0713dd241 100644
--- a/configs/example/memtest.py
+++ b/configs/example/memtest.py
@@ -181,7 +181,7 @@ else:
m5.ticks.setGlobalFrequency('1ns')
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(options.maxtick)
diff --git a/configs/example/rubytest.py b/configs/example/rubytest.py
index 13b862756..c9cf0aba4 100644
--- a/configs/example/rubytest.py
+++ b/configs/example/rubytest.py
@@ -118,7 +118,7 @@ root.system.mem_mode = 'timing'
m5.ticks.setGlobalFrequency('1ns')
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(options.maxtick)
diff --git a/configs/splash2/cluster.py b/configs/splash2/cluster.py
index 45c9ede82..77591dc62 100644
--- a/configs/splash2/cluster.py
+++ b/configs/splash2/cluster.py
@@ -292,7 +292,7 @@ if options.timing or options.detailed:
root.system.mem_mode = 'timing'
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
if options.maxtick:
diff --git a/configs/splash2/run.py b/configs/splash2/run.py
index 95ec790ba..24faade17 100644
--- a/configs/splash2/run.py
+++ b/configs/splash2/run.py
@@ -276,7 +276,7 @@ if options.timing or options.detailed:
root.system.mem_mode = 'timing'
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
if options.maxtick:
diff --git a/src/python/m5/SimObject.py b/src/python/m5/SimObject.py
index 3b84d6000..8e14b63d2 100644
--- a/src/python/m5/SimObject.py
+++ b/src/python/m5/SimObject.py
@@ -623,7 +623,7 @@ class SimObject(object):
def path(self):
if not self._parent:
- return 'root'
+ return '(orphan)'
ppath = self._parent.path()
if ppath == 'root':
return self._name
diff --git a/src/python/m5/simulate.py b/src/python/m5/simulate.py
index e43f90173..2db5c6952 100644
--- a/src/python/m5/simulate.py
+++ b/src/python/m5/simulate.py
@@ -39,13 +39,19 @@ from main import options
import SimObject
import ticks
import objects
+from util import fatal
# define a MaxTick parameter
MaxTick = 2**63 - 1
# The final hook to generate .ini files. Called from the user script
# once the config is built.
-def instantiate(root):
+def instantiate():
+ root = objects.Root.getInstance()
+
+ if not root:
+ fatal("Need to instantiate Root() before calling instantiate()")
+
# we need to fix the global frequency
ticks.fixGlobalFrequency()
@@ -136,7 +142,8 @@ def drain(root):
def resume(root):
root.resume()
-def checkpoint(root, dir):
+def checkpoint(dir):
+ root = objects.Root.getInstance()
if not isinstance(root, objects.Root):
raise TypeError, "Checkpoint must be called on a root object."
doDrain(root)
@@ -144,7 +151,8 @@ def checkpoint(root, dir):
internal.core.serializeAll(dir)
resume(root)
-def restoreCheckpoint(root, dir):
+def restoreCheckpoint(dir):
+ root = objects.Root.getInstance()
print "Restoring from checkpoint"
internal.core.unserializeAll(dir)
need_resume.append(root)
diff --git a/src/sim/Root.py b/src/sim/Root.py
index fff998e0d..c7404a11f 100644
--- a/src/sim/Root.py
+++ b/src/sim/Root.py
@@ -28,7 +28,32 @@
from m5.SimObject import SimObject
from m5.params import *
+from m5.util import fatal
class Root(SimObject):
+
+ _the_instance = None
+
+ def __new__(cls, **kwargs):
+ if Root._the_instance:
+ fatal("Attempt to allocate multiple instances of Root.")
+ return None
+
+ # first call: allocate the unique instance
+ #
+ # If SimObject ever implements __new__, we may want to pass
+ # kwargs here, but for now this goes straight to
+ # object.__new__ which prints an ugly warning if you pass it
+ # args. Seems like a bad design but that's the way it is.
+ Root._the_instance = SimObject.__new__(cls)
+ return Root._the_instance
+
+ @classmethod
+ def getInstance(cls):
+ return Root._the_instance
+
+ def path(self):
+ return 'root'
+
type = 'Root'
dummy = Param.Int(0, "We don't support objects without params")
diff --git a/tests/run.py b/tests/run.py
index 1e58f0283..f4105fb41 100644
--- a/tests/run.py
+++ b/tests/run.py
@@ -78,7 +78,7 @@ sys.path.append(joinpath(tests_root, category, name))
execfile(joinpath(tests_root, category, name, 'test.py'))
# instantiate configuration
-m5.instantiate(root)
+m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(maxtick)
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-16 11:33:49 +0000