5383e1ada4
This changeset adds support for changing the simulator output directory. This can be useful when the simulation goes through several stages (e.g., a warming phase, a simulation phase, and a verification phase) since it allows the output from each stage to be located in a different directory. Relocation is done by calling core.setOutputDir() from Python or simout.setOutputDirectory() from C++. This change affects several parts of the design of the gem5's output subsystem. First, files returned by an OutputDirectory instance (e.g., simout) are of the type OutputStream instead of a std::ostream. This allows us to do some more book keeping and control re-opening of files when the output directory is changed. Second, new subdirectories are OutputDirectory instances, which should be used to create files in that sub-directory. 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>
134 lines
4.7 KiB
C++
134 lines
4.7 KiB
C++
/*
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* Copyright (c) 2010-2013 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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*/
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#ifndef __ARCH_ARM_LINUX_SYSTEM_HH__
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#define __ARCH_ARM_LINUX_SYSTEM_HH__
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#include <cstdio>
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#include <map>
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#include <string>
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#include <vector>
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#include "arch/arm/system.hh"
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#include "base/output.hh"
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#include "kern/linux/events.hh"
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#include "params/LinuxArmSystem.hh"
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#include "sim/core.hh"
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class DumpStatsPCEvent;
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class LinuxArmSystem : public GenericArmSystem
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{
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protected:
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DumpStatsPCEvent *dumpStatsPCEvent;
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public:
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/** Boilerplate params code */
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typedef LinuxArmSystemParams Params;
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const Params *
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params() const
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{
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return dynamic_cast<const Params *>(_params);
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}
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/** When enabled, dump stats/task info on context switches for
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* Streamline and per-thread cache occupancy studies, etc. */
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bool enableContextSwitchStatsDump;
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/** This map stores a mapping of OS process IDs to internal Task IDs. The
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* mapping is done because the stats system doesn't tend to like vectors
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* that are much greater than 1000 items and the entire process space is
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* 65K. */
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std::map<uint32_t, uint32_t> taskMap;
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/** This is a file that is placed in the run directory that prints out
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* mappings between taskIds and OS process IDs */
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OutputStream* taskFile;
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LinuxArmSystem(Params *p);
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~LinuxArmSystem();
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void initState();
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void startup();
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/** This function creates a new task Id for the given pid.
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* @param tc thread context that is currentyl executing */
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void mapPid(ThreadContext* tc, uint32_t pid);
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private:
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/** Event to halt the simulator if the kernel calls panic() */
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PCEvent *kernelPanicEvent;
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/** Event to halt the simulator if the kernel calls oopses */
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PCEvent *kernelOopsEvent;
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/**
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* PC based event to skip udelay(<time>) calls and quiesce the
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* processor for the appropriate amount of time. This is not functionally
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* required but does speed up simulation.
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*/
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Linux::UDelayEvent *uDelaySkipEvent;
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/** Another PC based skip event for const_udelay(). Similar to the udelay
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* skip, but this function precomputes the first multiply that is done
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* in the generic case since the parameter is known at compile time.
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* Thus we need to do some division to get back to us.
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*/
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Linux::UDelayEvent *constUDelaySkipEvent;
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};
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class DumpStatsPCEvent : public PCEvent
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{
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public:
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DumpStatsPCEvent(PCEventQueue *q, const std::string &desc, Addr addr)
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: PCEvent(q, desc, addr)
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{}
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virtual void process(ThreadContext* tc);
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};
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#endif // __ARCH_ARM_LINUX_SYSTEM_HH__
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