wmoo: experiment works locally
TODO: more result checking git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1093 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
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hsc
@ -102,6 +102,145 @@ bool WeathermonitorExperiment::run()
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#elif 0
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// STEP 3: The actual experiment.
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#if !LOCAL
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for (int i = 0; i < 500; ++i) {
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#endif
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log << "restoring state" << endl;
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sal::simulator.restore(statename);
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// get an experiment parameter set
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log << "asking job server for experiment parameters" << endl;
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WeathermonitorExperimentData param;
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#if !LOCAL
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if (!m_jc.getParam(param)) {
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log << "Dying." << endl;
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// communicate that we were told to die
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sal::simulator.terminate(1);
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}
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#else
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// XXX debug
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param.msg.set_instr_offset(1000);
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//param.msg.set_instr_address(12345);
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param.msg.set_mem_addr(0x00103bdc);
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param.msg.set_bit_offset(5);
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#endif
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int id = param.getWorkloadID();
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int instr_offset = param.msg.instr_offset();
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int mem_addr = param.msg.mem_addr();
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int bit_offset = param.msg.bit_offset();
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log << "job " << id << " instr " << instr_offset << " mem " << mem_addr << "+" << bit_offset << endl;
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// XXX debug
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/*
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std::stringstream fname;
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fname << "job." << ::getpid();
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std::ofstream job(fname.str().c_str());
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job << "job " << id << " instr " << instr_offset << " (" << param.msg.instr_address() << ") mem " << mem_addr << "+" << bit_offset << endl;
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job.close();
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*/
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// this marks THE END
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fi::BPEvent ev_end(fi::ANY_ADDR);
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ev_end.setCounter(WEATHER_NUMINSTR);
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sal::simulator.addEvent(&ev_end);
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// no need to wait if offset is 0
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if (instr_offset > 0) {
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// XXX could be improved with intermediate states (reducing runtime until injection)
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bp.setWatchInstructionPointer(fi::ANY_ADDR);
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bp.setCounter(instr_offset);
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sal::simulator.addEventAndWait(&bp);
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}
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// --- fault injection ---
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sal::MemoryManager& mm = sal::simulator.getMemoryManager();
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sal::byte_t data = mm.getByte(mem_addr);
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sal::byte_t newdata = data ^ (1 << bit_offset);
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mm.setByte(mem_addr, newdata);
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// note at what IP we did it
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int32_t injection_ip = sal::simulator.getRegisterManager().getInstructionPointer();
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param.msg.set_injection_ip(injection_ip);
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log << "fault injected @ ip " << injection_ip
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<< " 0x" << std::hex << ((int)data) << " -> 0x" << ((int)newdata) << endl;
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// sanity check
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if (param.msg.has_instr_address() &&
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injection_ip != param.msg.instr_address()) {
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std::stringstream ss;
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ss << "SANITY CHECK FAILED: " << injection_ip
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<< " != " << param.msg.instr_address();
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log << ss.str() << endl;
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param.msg.set_resulttype(param.msg.UNKNOWN);
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param.msg.set_latest_ip(injection_ip);
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param.msg.set_details(ss.str());
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sal::simulator.clearEvents();
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#if !LOCAL
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m_jc.sendResult(param);
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continue;
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#endif
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}
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// --- aftermath ---
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// four possible outcomes:
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// - trap, "crash"
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// - jump outside text segment
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// - (XXX unaligned jump inside text segment)
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// - (XXX weird instructions?)
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// - (XXX results displayed?)
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// - reaches THE END
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// catch traps as "extraordinary" ending
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fi::TrapEvent ev_trap(fi::ANY_TRAP);
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sal::simulator.addEvent(&ev_trap);
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// jump outside text segment
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fi::BPRangeEvent ev_below_text(fi::ANY_ADDR, WEATHER_TEXT_START - 1);
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fi::BPRangeEvent ev_beyond_text(WEATHER_TEXT_END + 1, fi::ANY_ADDR);
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sal::simulator.addEvent(&ev_below_text);
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sal::simulator.addEvent(&ev_beyond_text);
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#if LOCAL && 0
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// XXX debug
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log << "enabling tracing" << endl;
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TracingPlugin tp;
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tp.setLogIPOnly(true);
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tp.setOstream(&std::cout);
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// this must be done *after* configuring the plugin:
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sal::simulator.addFlow(&tp);
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#endif
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fi::BaseEvent* ev = sal::simulator.waitAny();
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// record latest IP regardless of result
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param.msg.set_latest_ip(sal::simulator.getRegisterManager().getInstructionPointer());
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if (ev == &ev_end) {
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log << "Result FINISHED" << endl;
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param.msg.set_resulttype(param.msg.FINISHED);
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} else if (ev == &ev_below_text || ev == &ev_beyond_text) {
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log << "Result OUTSIDE" << endl;
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param.msg.set_resulttype(param.msg.OUTSIDE);
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} else if (ev == &ev_trap) {
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log << std::dec << "Result TRAP #" << ev_trap.getTriggerNumber() << endl;
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param.msg.set_resulttype(param.msg.TRAP);
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std::stringstream ss;
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ss << ev_trap.getTriggerNumber();
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param.msg.set_details(ss.str());
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} else {
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log << "Result WTF?" << endl;
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param.msg.set_resulttype(param.msg.UNKNOWN);
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std::stringstream ss;
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ss << "eventid " << ev->getId() << " EIP " << sal::simulator.getRegisterManager().getInstructionPointer();
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param.msg.set_details(ss.str());
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}
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#if !LOCAL
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m_jc.sendResult(param);
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}
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#endif
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// XXX
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#endif
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@ -19,24 +19,15 @@ message WeathermonitorProtoMsg {
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enum ResultType {
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FINISHED = 1;
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TRAP = 2;
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HALT = 3;
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UNKNOWN = 4;
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OUTSIDE = 3;
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HALT = 4;
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UNKNOWN = 5;
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}
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optional ResultType resulttype = 6;
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// result details:
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// resultdata = result[0-2]
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repeated uint32 resultdata = 7 [packed=true];
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// was finish() ever reached?
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optional bool finish_reached = 8;
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// especially interesting for TRAP/ UNKNOWN: latest IP
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optional uint32 latest_ip = 9;
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// did ECC correct the fault?
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optional int32 error_corrected = 10;
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// especially interesting for TRAP/UNKNOWN: latest IP
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optional uint32 latest_ip = 7;
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// optional textual description of what happened
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optional string details = 11;
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optional string details = 8;
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}
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