29e34a739b
User script now invokes initialization and simulation loop after building configuration. These functions are exported from C++ to Python using SWIG. SConstruct: Set up SWIG builder & scanner. Set up symlinking of source files into build directory (by not disabling the default behavior). configs/test/test.py: Rewrite to use new script-driven interface. Include a sample option. src/SConscript: Set up symlinking of source files into build directory (by not disabling the default behavior). Add SWIG-generated main_wrap.cc to source list. src/arch/SConscript: Set up symlinking of source files into build directory (by not disabling the default behavior). src/arch/alpha/ev5.cc: src/arch/alpha/isa/decoder.isa: src/cpu/o3/alpha_cpu_impl.hh: src/cpu/trace/opt_cpu.cc: src/cpu/trace/trace_cpu.cc: src/sim/pseudo_inst.cc: src/sim/root.cc: src/sim/serialize.cc: src/sim/syscall_emul.cc: SimExit() is now exitSimLoop(). src/cpu/base.cc: SimExitEvent is now SimLoopExitEvent src/python/SConscript: Add SWIG build command for main.i. Use python/m5 in build dir as source for zip archive... easy now with file duplication enabled. src/python/m5/__init__.py: - Move copyright notice back to C++ so we can print it right away, even for interactive sessions. - Get rid of argument parsing code; just provide default option descriptors for user script to call optparse with. - Don't clutter m5 namespace by sucking in all of m5.config and m5.objects. - Move instantiate() function here from config.py. src/python/m5/config.py: - Move instantiate() function to __init__.py. - Param.Foo deferred type lookups must use m5.objects namespace now (not m5). src/python/m5/objects/AlphaConsole.py: src/python/m5/objects/AlphaFullCPU.py: src/python/m5/objects/AlphaTLB.py: src/python/m5/objects/BadDevice.py: src/python/m5/objects/BaseCPU.py: src/python/m5/objects/BaseCache.py: src/python/m5/objects/Bridge.py: src/python/m5/objects/Bus.py: src/python/m5/objects/CoherenceProtocol.py: src/python/m5/objects/Device.py: src/python/m5/objects/DiskImage.py: src/python/m5/objects/Ethernet.py: src/python/m5/objects/Ide.py: src/python/m5/objects/IntrControl.py: src/python/m5/objects/MemObject.py: src/python/m5/objects/MemTest.py: src/python/m5/objects/Pci.py: src/python/m5/objects/PhysicalMemory.py: src/python/m5/objects/Platform.py: src/python/m5/objects/Process.py: src/python/m5/objects/Repl.py: src/python/m5/objects/Root.py: src/python/m5/objects/SimConsole.py: src/python/m5/objects/SimpleDisk.py: src/python/m5/objects/System.py: src/python/m5/objects/Tsunami.py: src/python/m5/objects/Uart.py: Fix up imports (m5 namespace no longer includes m5.config). src/sim/eventq.cc: src/sim/eventq.hh: Support for Python-called simulate() function: - Use IsExitEvent flag to signal events that want to exit the simulation loop gracefully (instead of calling exit() to terminate the process). - Modify interface to hand exit event object back to caller so it can be inspected for cause. src/sim/host.hh: Add MaxTick constant. src/sim/main.cc: Move copyright notice back to C++ so we can print it right away, even for interactive sessions. Use PYTHONPATH environment var to set module path (instead of clunky code injection method). Move main control from here into Python: - Separate initialization code and simulation loop into separate functions callable from Python. - Make Python interpreter invocation more pure (more like directly invoking interpreter). Add -i and -p flags (only options on binary itself; other options processed by Python). Import readline package when using interactive mode. src/sim/sim_events.cc: SimExitEvent is now SimLoopExitEvent, and uses IsSimExit flag to terminate loop (instead of exiting simulator process). src/sim/sim_events.hh: SimExitEvent is now SimLoopExitEvent, and uses IsSimExit flag to terminate loop (instead of exiting simulator process). Get rid of a few unused constructors. src/sim/sim_exit.hh: SimExit() is now exitSimLoop(). Get rid of unused functions. Add comments. --HG-- extra : convert_revision : 280b0d671516b25545a6f24cefa64a68319ff3d4
161 lines
4.1 KiB
C++
161 lines
4.1 KiB
C++
/*
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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: Nathan Binkert
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*/
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#include <string>
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#include "base/callback.hh"
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#include "base/hostinfo.hh"
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#include "sim/eventq.hh"
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#include "sim/param.hh"
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#include "sim/sim_events.hh"
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#include "sim/sim_exit.hh"
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#include "sim/startup.hh"
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#include "sim/stats.hh"
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using namespace std;
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//
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// handle termination event
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//
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void
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SimLoopExitEvent::process()
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{
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// if this got scheduled on a different queue (e.g. the committed
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// instruction queue) then make a corresponding event on the main
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// queue.
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if (theQueue() != &mainEventQueue) {
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exitSimLoop(cause, code);
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delete this;
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}
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// otherwise do nothing... the IsExitEvent flag takes care of
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// exiting the simulation loop and returning this object to Python
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}
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const char *
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SimLoopExitEvent::description()
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{
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return "simulation loop exit";
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}
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void
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exitSimLoop(Tick when, const std::string &message, int exit_code)
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{
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new SimLoopExitEvent(when, message, exit_code);
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}
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void
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exitSimLoop(const std::string &message, int exit_code)
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{
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exitSimLoop(curTick, message, exit_code);
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}
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//
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// constructor: automatically schedules at specified time
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//
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CountedExitEvent::CountedExitEvent(EventQueue *q, const std::string &_cause,
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Tick _when, int &_downCounter)
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: Event(q, Sim_Exit_Pri),
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cause(_cause),
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downCounter(_downCounter)
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{
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// catch stupid mistakes
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assert(downCounter > 0);
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schedule(_when);
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}
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//
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// handle termination event
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//
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void
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CountedExitEvent::process()
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{
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if (--downCounter == 0) {
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exitSimLoop(cause, 0);
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}
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}
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const char *
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CountedExitEvent::description()
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{
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return "counted exit";
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}
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#ifdef CHECK_SWAP_CYCLES
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new CheckSwapEvent(&mainEventQueue, CHECK_SWAP_CYCLES);
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#endif
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void
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CheckSwapEvent::process()
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{
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/* Check the amount of free swap space */
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long swap;
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/* returns free swap in KBytes */
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swap = procInfo("/proc/meminfo", "SwapFree:");
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if (swap < 1000)
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ccprintf(cerr, "\a\a\aWarning! Swap space is low (%d)\n", swap);
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if (swap < 100) {
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cerr << "\a\aAborting Simulation! Inadequate swap space!\n\n";
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exitSimLoop("Lack of swap space");
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}
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schedule(curTick + interval);
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}
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const char *
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CheckSwapEvent::description()
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{
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return "check swap";
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}
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//
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// handle progress event: print message and reschedule
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//
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void
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ProgressEvent::process()
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{
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DPRINTFN("ProgressEvent\n");
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// reschedule for next interval
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schedule(curTick + interval);
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}
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const char *
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ProgressEvent::description()
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{
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return "progress message";
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}
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