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Change-Id: Ibb405af54a46a93706a6f476b5314491e84be0c8
Reviewed-on: https://gem5-review.googlesource.com/3081
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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Remove SWIG-specific Python code.
Change-Id: If1d1b253d84021c9a8f9a64027ea7a94f2336dff
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2922
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
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Swig wrappers for native objects currently share the _m5.internal name
space with Python code. This is undesirable if we ever want to switch
from Swig to some other framework for native binding (e.g., PyBind11
or Boost::Python). This changeset moves all of such wrappers to the
_m5 namespace, which is now reserved for native code.
Change-Id: I2d2bc12dbc05b57b7c5a75f072e08124413d77f3
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
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This changeset updates the dot output to bail out if it is unable to
resolve the voltage or clock domains (which will cause it to raise an
AttributeError). Additionally, the DVFS dot output is disabled by
default for speed purposes.
Minor fixup for 0aeca8f.
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This patch adds a secondary dot output file which shows the DVFS domains. This
has been done separately for now to avoid cluttering the already existing
diagram. Due to the way that the clock domains are assigned to components in
gem5, this output must be generated after the C++ objects have been
instantiated. This further motivates the need to generate this file separately
to the current dot output, and not to replace it entirely.
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This changeset adds forking capabilities to the gem5 python scripts. A fork
method is added to simulate.py. This method is responsible for forking the
simulator itself, and will direct all output files to a new output directory
based on the fork sequence number. The default name of the output directory is
the same as the parent with the suffix ".fN" added where N is the fork sequence
number. The fork method provides the option to specify if the system should be
drained prior to forking, or not. By default the system is drained to ensure
that there are no in-flight transactions.
When forking the simulator, the fork method returns the PID of the child
process, or returns 0 if running in the child. This is in line with the standard
Python forking interface.
Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
[sascha.bischoff@arm.com: Rebased patches onto a newer gem5 version]
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
[andreas.sandberg@arm.com: Updated to comply with modern draining semantics ]
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
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When forking a gem5 process, some objects need to clean up resources
(mainly file descriptions) shared between the child and the parent of
the fork. This changeset adds the notifyFork() method to Drainable,
which is called in the child process.
Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
[sascha.bischoff@arm.com: Rebased patches onto a newer gem5 version]
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
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Draining is currently done by traversing the SimObject graph and
calling drain()/drainResume() on the SimObjects. This is not ideal
when non-SimObjects (e.g., ports) need draining since this means that
SimObjects owning those objects need to be aware of this.
This changeset moves the responsibility for finding objects that need
draining from SimObjects and the Python-side of the simulator to the
DrainManager. The DrainManager now maintains a set of all objects that
need draining. To reduce the overhead in classes owning non-SimObjects
that need draining, objects inheriting from Drainable now
automatically register with the DrainManager. If such an object is
destroyed, it is automatically unregistered. This means that drain()
and drainResume() should never be called directly on a Drainable
object.
While implementing the new functionality, the DrainManager has now
been made thread safe. In practice, this means that it takes a lock
whenever it manipulates the set of Drainable objects since SimObjects
in different threads may create Drainable objects
dynamically. Similarly, the drain counter is now an atomic_uint, which
ensures that it is manipulated correctly when objects signal that they
are done draining.
A nice side effect of these changes is that it makes the drain state
changes stricter, which the simulation scripts can exploit to avoid
redundant drains.
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When the Python helper code switches CPU models, it sometimes also
needs to change the memory mode of the simulator. When this happens,
it accidentally tried to drain the simulator despite having done so
already. This changeset removes the redundant drain.
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fix draining bug where multiple cores hit max_insts_any_thread simultaneously
Committed by: Nilay Vaish <nilay@cs.wisc.edu>
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The probe patch is motivated by the desire to move analytical and trace code
away from functional code. This is achieved by the probe interface which is
essentially a glorified observer model.
What this means to users:
* add a probe point and a "notify" call at the source of an "event"
* add an isolated module, that is being used to carry out *your* analysis (e.g. generate a trace)
* register that module as a probe listener
Note: an example is given for reference in src/cpu/o3/simple_trace.[hh|cc] and src/cpu/SimpleTrace.py
What is happening under the hood:
* every SimObject maintains has a ProbeManager.
* during initialization (src/python/m5/simulate.py) first regProbePoints and
the regProbeListeners is called on each SimObject. this hooks up the probe
point notify calls with the listeners.
FAQs:
Why did you develop probe points:
* to remove trace, stats gathering, analytical code out of the functional code.
* the belief that probes could be generically useful.
What is a probe point:
* a probe point is used to notify upon a given event (e.g. cpu commits an instruction)
What is a probe listener:
* a class that handles whatever the user wishes to do when they are notified
about an event.
What can be passed on notify:
* probe points are templates, and so the user can generate probes that pass any
type of argument (by const reference) to a listener.
What relationships can be generated (1:1, 1:N, N:M etc):
* there isn't a restriction. You can hook probe points and listeners up in a
1:1, 1:N, N:M relationship. They become useful when a number of modules
listen to the same probe points. The idea being that you can add a small
number of probes into the source code and develop a larger number of useful
analysis modules that use information passed by the probes.
Can you give examples:
* adding a probe point to the cpu's commit method allows you to build a trace
module (outputting assembler), you could re-use this to gather instruction
distribution (arithmetic, load/store, conditional, control flow) stats.
Why is the probe interface currently restricted to passing a const reference:
* the desire, initially at least, is to allow an interface to observe
functionality, but not to change functionality.
* of course this can be subverted by const-casting.
What is the performance impact of adding probes:
* when nothing is actively listening to the probes they should have a
relatively minor impact. Profiling has suggested even with a large number of
probes (60) the impact of them (when not active) is very minimal (<1%).
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Currently statistics are reset after the initial / checkpoint state
has been loaded. But ruby does some checkpoint processing in its
startup() function. So the stats need to be reset after the startup()
function has been called. This patch moves the class to stats.reset()
to achieve this change in functionality.
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This patch adds support for simulating with multiple threads, each of
which operates on an event queue. Each sim object specifies which eventq
is would like to be on. A custom barrier implementation is being added
using which eventqs synchronize.
The patch was tested in two different configurations:
1. ruby_network_test.py: in this simulation L1 cache controllers receive
requests from the cpu. The requests are replied to immediately without
any communication taking place with any other level.
2. twosys-tsunami-simple-atomic: this configuration simulates a client-server
system which are connected by an ethernet link.
We still lack the ability to communicate using message buffers or ports. But
other things like simulation start and end, synchronizing after every quantum
are working.
Committed by: Nilay Vaish
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The output from the switcheroo tests is voluminous and
(because it includes timestamps) highly sensitive to
minor changes, leading to extremely large updates to the
reference outputs. This patch addresses this problem
by suppressing output from the tests. An internal
parameter can be set to enable the output. Wiring that
up to a command-line flag (perhaps even the rudimantary
-v/-q options in m5/main.py) is left for future work.
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This patch aligns the MaxTick in Python with the one in C++. Thus,
both reflect the maximum value that an unsigned 64-bit integer can
have.
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Virtualized CPUs and the fastmem mode of the atomic CPU require direct
access to physical memory. We currently require caches to be disabled
when using them to prevent chaos. This is not ideal when switching
between hardware virutalized CPUs and other CPU models as it would
require a configuration change on each switch. This changeset
introduces a new version of the atomic memory mode,
'atomic_noncaching', where memory accesses are inserted into the
memory system as atomic accesses, but bypass caches.
To make memory mode tests cleaner, the following methods are added to
the System class:
* isAtomicMode() -- True if the memory mode is 'atomic' or 'direct'.
* isTimingMode() -- True if the memory mode is 'timing'.
* bypassCaches() -- True if caches should be bypassed.
The old getMemoryMode() and setMemoryMode() methods should never be
used from the C++ world anymore.
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CPU switching consists of the following steps:
1. Drain the system
2. Switch out old CPUs (cpu.switchOut())
3. Change the system timing mode to the mode the new CPUs require
4. Flush caches if switching to hardware virtualization
5. Inform new CPUs of the handover (cpu.takeOverFrom())
6. Resume the system
m5.switchCpus() previously only did step 2 & 5. Since information
about the new processors' memory system requirements is now exposed,
do all of the steps above.
This patch adds automatic memory system switching and flush (if
needed) to switchCpus(). Additionally, it adds optional draining to
switchCpus(). This has the following implications:
* changeToTiming and changeToAtomic are no longer needed, so they have
been removed.
* changeMemoryMode is only used internally, so it is has been renamed
to be private.
* switchCpus requires a reference to the system containing the CPUs as
its first parameter.
WARNING: This changeset breaks compatibility with existing
configuration scripts since it changes the signature of
m5.switchCpus().
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This patch introduces the following sanity checks when switching
between CPUs:
* Check that the set of new and old CPUs do not overlap. Having an
overlap between the set of new CPUs and the set of old CPUs is
currently not supported. Doing such a switch used to result in the
following assertion error:
BaseCPU::takeOverFrom(BaseCPU*): \
Assertion `!new_itb_port->isConnected()' failed.
* Check that all new CPUs are in the switched out state.
* Check that all old CPUs are in the switched in state.
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This patch adds the following two methods to the Drainable base class:
memWriteback() - Write back all dirty cache lines to memory using
functional accesses.
memInvalidate() - Invalidate memory system buffers. Dirty data
won't be written back.
Specifying calling memWriteback() after draining will allow us to
checkpoint systems with caches. memInvalidate() can be used to drop
memory system buffers in preparation for switching to an accelerated
CPU model that bypasses the gem5 memory system (e.g., hardware
virtualized CPUs).
Note: This patch only adds the methods to Drainable, the code for
flushing the TLB and the cache is committed separately.
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There is no point in exporting the old drain() method in
Simulate.py. It should only be used internally by doDrain(). This
patch moves the old drain() method into doDrain() and renames
doDrain() to drain().
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changeToAtomic and changeToTiming both do essentially the same thing,
they check the type of their input argument, drain the system, and
switch to the desired memory mode. This patch moves all of that code
to a separate method (changeMemoryMode) and calls that from both
changeToAtomic and changeToTiming.
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This patch moves the draining interface from SimObject to a separate
class that can be used by any object needing draining. However,
objects not visible to the Python code (i.e., objects not deriving
from SimObject) still depend on their parents informing them when to
drain. This patch also gets rid of the CountedDrainEvent (which isn't
really an event) and replaces it with a DrainManager.
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Changeset 4f54b0f229b5 removed the call to doDrain in changeToTiming
based on the assumption that the system does not need draining when
running in atomic mode. This is a false assumption since at least the
System class requires the system to be drained before it allows
switching of memory modes. This patch reverts that part of the
changeset.
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This patch adds a function, periodicStatDump(long long period), which will dump
and reset the statistics every period. This function is designed to be called
from the python configuration scripts. This allows the periodic stats dumping to
be configured more easilly at run time.
The period is currently specified as a long long as there are issues passing
Tick into the C++ from the python as they have conflicting definitions. If the
period is less than curTick, the first occurance occurs at curTick. If the
period is set to 0, then the event is descheduled and the stats are not
periodically dumped.
Due to issues when resumung from a checkpoint, the StatDump event must be moved
forward such that it occues AFTER the current tick. As the function is called
from the python, the event is scheduled before the system resumes from the
checkpoint. Therefore, the event is moved using the updateEvents() function.
This is called from simulate.py once the system has resumed from the checkpoint.
NOTE: It should be noted that this is a fairly temporary patch which re-adds the
capability to extract temporal information from the communication monitors. It
should not be used at the same time as anything that relies on dumping the
statistics based on in simulation events i.e. a context switch.
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Remove SimObject::setMemoryMode from the main SimObject class since it
is only valid for the System class. In addition to removing the method
from the C++ sources, this patch also removes getMemoryMode and
changeTiming from SimObject.py and updates the simulation code to call
the (get|set)MemoryMode method on the System object instead.
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When switching from an atomic CPU to any of the timing CPUs, a drain is
unnecessary since no events are scheduled in atomic mode. However, when
trying to switch CPUs starting with a timing CPU, there may be events
scheduled. This change ensures that all events are drained from the system
by calling m5.drain before switching CPUs.
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Simulation objects normally register derived statistics, presumably
what regFormulas originally was meant for, in regStats(). This patch
removes regRegformulas since there is no need to have a separate
method call to register formulas.
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Revised system visualization to reflect structure and memory hierarchy.
Improved visualization: less congested and cluttered; more colorful.
Nodes reflect components; directed edges reflect dirctional relation, from
a master port to a slave port. Requires pydot.
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Fixed broken code which visualizes the system configuration by generating a
tree from each component's children, starting from root.
Requires DOT (hence pydot).
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this allows things to be overridden at startup (e.g. for tests)
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This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
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Meant to add these with the previous batch of csets.
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Replace direct call to unserialize() on each SimObject with a pair of
calls for better control over initialization in both ckpt and non-ckpt
cases.
If restoring from a checkpoint, loadState(ckpt) is called on each
SimObject. The default implementation simply calls unserialize() if
there is a corresponding checkpoint section, so we get backward
compatibility for existing objects. However, objects can override
loadState() to get other behaviors, e.g., doing other programmed
initializations after unserialize(), or complaining if no checkpoint
section is found. (Note that the default warning for a missing
checkpoint section is now gone.)
If not restoring from a checkpoint, we call the new initState() method
on each SimObject instead. This provides a hook for state
initializations that are only required when *not* restoring from a
checkpoint.
Given this new framework, do some cleanup of LiveProcess subclasses
and X86System, which were (in some cases) emulating initState()
behavior in startup via a local flag or (in other cases) erroneously
doing initializations in startup() that clobbered state loaded earlier
by unserialize().
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The separate restoreCheckpoint() call is gone; just pass
the checkpoint dir as an optional arg to instantiate().
This change is a precursor to some more extensive
reworking of the startup code.
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The old code for handling SimObject children was kind of messy,
with children stored both in _values and _children, and
inconsistent and potentially buggy handling of SimObject
vectors. Now children are always stored in _children, and
SimObject vectors are consistently handled using the
SimObjectVector class.
Also, by deferring the parenting of SimObject-valued parameters
until the end (instead of doing it at assignment), we eliminate
the hole where one could assign a vector of SimObjects to a
parameter then append to that vector, with the appended objects
never getting parented properly.
This patch induces small stats changes in tests with data races
due to changes in the object creation & initialization order.
The new code does object vectors in order and so should be more
stable.
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Enforce that the Python Root SimObject is instantiated only
once. The C++ Root object already panics if more than one is
created. This change avoids the need to track what the root
object is, since it's available from Root.getInstance() (if it
exists). It's now redundant to have the user pass the root
object to functions like instantiate(), checkpoint(), and
restoreCheckpoint(), so that arg is gone. Users who use
configs/common/Simulate.py should not notice.
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There used to be a reason to have StartupCallback
be a separate object, but not any more. Now
it's just confusing.
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Also, make Formulas work on AverageVector. First, Stat::Average (and thus
Stats::AverageVector) was broken when coming out of a checkpoint and on resets,
this fixes that. Formulas also didn't work with AverageVector, but added
support for that.
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Get rid of misc.py and just stick misc things in __init__.py
Move utility functions out of SCons files and into m5.util
Move utility type stuff from m5/__init__.py to m5/util/__init__.py
Remove buildEnv from m5 and allow access only from m5.defines
Rename AddToPath to addToPath while we're moving it to m5.util
Rename read_command to readCommand while we're moving it
Rename compare_versions to compareVersions while we're moving it.
--HG--
rename : src/python/m5/convert.py => src/python/m5/util/convert.py
rename : src/python/m5/smartdict.py => src/python/m5/util/smartdict.py
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Enable more or less takes the place of check, but also allows stats to
do some other configuration. Prepare moves all of the code that readies
a stat for dumping into a separate function in preparation for supporting
serialization of certain pieces of statistics data.
While we're at it, clean up the visitor code and some of the python code.
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--HG--
rename : tests/long/00.gzip/ref/alpha/tru64/o3-timing/stderr => tests/long/00.gzip/ref/alpha/tru64/o3-timing/simerr
rename : tests/long/00.gzip/ref/alpha/tru64/o3-timing/stdout => tests/long/00.gzip/ref/alpha/tru64/o3-timing/simout
rename : tests/long/00.gzip/ref/alpha/tru64/o3-timing/m5stats.txt => tests/long/00.gzip/ref/alpha/tru64/o3-timing/stats.txt
rename : tests/long/00.gzip/ref/alpha/tru64/simple-atomic/stderr => tests/long/00.gzip/ref/alpha/tru64/simple-atomic/simerr
rename : tests/long/00.gzip/ref/alpha/tru64/simple-atomic/stdout => tests/long/00.gzip/ref/alpha/tru64/simple-atomic/simout
rename : tests/long/00.gzip/ref/alpha/tru64/simple-atomic/m5stats.txt => tests/long/00.gzip/ref/alpha/tru64/simple-atomic/stats.txt
rename : tests/long/00.gzip/ref/alpha/tru64/simple-timing/stderr => tests/long/00.gzip/ref/alpha/tru64/simple-timing/simerr
rename : tests/long/00.gzip/ref/alpha/tru64/simple-timing/stdout => tests/long/00.gzip/ref/alpha/tru64/simple-timing/simout
rename : tests/long/00.gzip/ref/alpha/tru64/simple-timing/m5stats.txt => tests/long/00.gzip/ref/alpha/tru64/simple-timing/stats.txt
rename : tests/long/00.gzip/ref/sparc/linux/o3-timing/stderr => tests/long/00.gzip/ref/sparc/linux/o3-timing/simerr
rename : tests/long/00.gzip/ref/sparc/linux/o3-timing/stdout => tests/long/00.gzip/ref/sparc/linux/o3-timing/simout
rename : tests/long/00.gzip/ref/sparc/linux/o3-timing/m5stats.txt => tests/long/00.gzip/ref/sparc/linux/o3-timing/stats.txt
rename : tests/long/00.gzip/ref/sparc/linux/simple-atomic/stderr => tests/long/00.gzip/ref/sparc/linux/simple-atomic/simerr
rename : tests/long/00.gzip/ref/sparc/linux/simple-atomic/stdout => tests/long/00.gzip/ref/sparc/linux/simple-atomic/simout
rename : tests/long/00.gzip/ref/sparc/linux/simple-atomic/m5stats.txt => tests/long/00.gzip/ref/sparc/linux/simple-atomic/stats.txt
rename : tests/long/00.gzip/ref/sparc/linux/simple-timing/stderr => tests/long/00.gzip/ref/sparc/linux/simple-timing/simerr
rename : tests/long/00.gzip/ref/sparc/linux/simple-timing/stdout => tests/long/00.gzip/ref/sparc/linux/simple-timing/simout
rename : tests/long/00.gzip/ref/sparc/linux/simple-timing/m5stats.txt => tests/long/00.gzip/ref/sparc/linux/simple-timing/stats.txt
rename : tests/long/00.gzip/ref/x86/linux/simple-atomic/stderr => tests/long/00.gzip/ref/x86/linux/simple-atomic/simerr
rename : tests/long/00.gzip/ref/x86/linux/simple-atomic/stdout => tests/long/00.gzip/ref/x86/linux/simple-atomic/simout
rename : tests/long/00.gzip/ref/x86/linux/simple-atomic/m5stats.txt => tests/long/00.gzip/ref/x86/linux/simple-atomic/stats.txt
rename : tests/long/00.gzip/ref/x86/linux/simple-timing/stderr => tests/long/00.gzip/ref/x86/linux/simple-timing/simerr
rename : tests/long/00.gzip/ref/x86/linux/simple-timing/stdout => tests/long/00.gzip/ref/x86/linux/simple-timing/simout
rename : tests/long/00.gzip/ref/x86/linux/simple-timing/m5stats.txt => tests/long/00.gzip/ref/x86/linux/simple-timing/stats.txt
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/stderr => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/simerr
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/stdout => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/simout
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/m5stats.txt => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3-dual/stats.txt
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/stderr => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/simerr
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/stdout => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/simout
rename : tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/m5stats.txt => tests/long/10.linux-boot/ref/alpha/linux/tsunami-o3/stats.txt
rename : tests/long/10.mcf/ref/sparc/linux/simple-atomic/stderr => tests/long/10.mcf/ref/sparc/linux/simple-atomic/simerr
rename : tests/long/10.mcf/ref/sparc/linux/simple-atomic/stdout => tests/long/10.mcf/ref/sparc/linux/simple-atomic/simout
rename : tests/long/10.mcf/ref/sparc/linux/simple-atomic/m5stats.txt => tests/long/10.mcf/ref/sparc/linux/simple-atomic/stats.txt
rename : tests/long/10.mcf/ref/sparc/linux/simple-timing/stderr => tests/long/10.mcf/ref/sparc/linux/simple-timing/simerr
rename : tests/long/10.mcf/ref/sparc/linux/simple-timing/stdout => tests/long/10.mcf/ref/sparc/linux/simple-timing/simout
rename : tests/long/10.mcf/ref/sparc/linux/simple-timing/m5stats.txt => tests/long/10.mcf/ref/sparc/linux/simple-timing/stats.txt
rename : tests/long/10.mcf/ref/x86/linux/simple-atomic/stderr => tests/long/10.mcf/ref/x86/linux/simple-atomic/simerr
rename : tests/long/10.mcf/ref/x86/linux/simple-atomic/stdout => tests/long/10.mcf/ref/x86/linux/simple-atomic/simout
rename : tests/long/10.mcf/ref/x86/linux/simple-atomic/m5stats.txt => tests/long/10.mcf/ref/x86/linux/simple-atomic/stats.txt
rename : tests/long/10.mcf/ref/x86/linux/simple-timing/stderr => tests/long/10.mcf/ref/x86/linux/simple-timing/simerr
rename : tests/long/10.mcf/ref/x86/linux/simple-timing/stdout => tests/long/10.mcf/ref/x86/linux/simple-timing/simout
rename : tests/long/10.mcf/ref/x86/linux/simple-timing/m5stats.txt => tests/long/10.mcf/ref/x86/linux/simple-timing/stats.txt
rename : tests/long/20.parser/ref/x86/linux/simple-atomic/stderr => tests/long/20.parser/ref/x86/linux/simple-atomic/simerr
rename : tests/long/20.parser/ref/x86/linux/simple-atomic/stdout => tests/long/20.parser/ref/x86/linux/simple-atomic/simout
rename : tests/long/20.parser/ref/x86/linux/simple-atomic/m5stats.txt => tests/long/20.parser/ref/x86/linux/simple-atomic/stats.txt
rename : tests/long/20.parser/ref/x86/linux/simple-timing/stderr => tests/long/20.parser/ref/x86/linux/simple-timing/simerr
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rename : tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/stderr => tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/simerr
rename : tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/stdout => tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/simout
rename : tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/m5stats.txt => tests/quick/30.eio-mp/ref/alpha/eio/simple-timing-mp/stats.txt
rename : tests/quick/50.memtest/ref/alpha/linux/memtest/stderr => tests/quick/50.memtest/ref/alpha/linux/memtest/simerr
rename : tests/quick/50.memtest/ref/alpha/linux/memtest/stdout => tests/quick/50.memtest/ref/alpha/linux/memtest/simout
rename : tests/quick/50.memtest/ref/alpha/linux/memtest/m5stats.txt => tests/quick/50.memtest/ref/alpha/linux/memtest/stats.txt
rename : tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/stderr => tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/simerr
rename : tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/stdout => tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/simout
rename : tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/m5stats.txt => tests/quick/80.netperf-stream/ref/alpha/linux/twosys-tsunami-simple-atomic/stats.txt
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When invoking several copies of m5 on the same machine at the same
time, there can be a race for TCP ports for the terminal connections
or remote gdb. Expose a function to disable those ports, and have the
regression scripts disable them. There are some SimObjects that have
no other function than to be used with ports (NativeTrace and
EtherTap), so they will panic if the ports are disabled.
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Using print >>ini_file syntax instead of reassigning sys.stdout
allows the python debugger to be used.
--HG--
extra : convert_revision : 63fc268f2e80f338ad1a7abe54b9e979e2239609
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This allows us to change memory modes as well.
Clean up the code while we're at it.
--HG--
extra : convert_revision : fc5fee9ffd08b791f0607ee2688f32aa65d15354
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