christoph/fail
1
Fork 0
Code Actions Packages Releases Activity

wmoo: 1 job = 8 experiments (all bit positions for one address)

Browse Source 
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1098 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
hsc
2012-04-18 12:36:44 +00:00
parent 1027b9faf2
commit 63add607a0
2 changed files with 132 additions and 111 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
core/experiments/weathermonitor/experiment.cc
View File

@ -59,6 +59,8 @@ bool WeathermonitorExperiment::run()
log << "enabling tracing" << endl;
TracingPlugin tp;
// TODO: record max(ESP)
// restrict memory access logging to injection target
MemoryMap mm;
mm.add(WEATHER_DATA_START, WEATHER_DATA_END - WEATHER_DATA_START);
@ -123,14 +125,18 @@ bool WeathermonitorExperiment::run()
param.msg.set_instr_offset(1000);
//param.msg.set_instr_address(12345);
param.msg.set_mem_addr(0x00103bdc);
param.msg.set_bit_offset(5);
#endif
int id = param.getWorkloadID();
int instr_offset = param.msg.instr_offset();
int mem_addr = param.msg.mem_addr();
int bit_offset = param.msg.bit_offset();
log << "job " << id << " instr " << instr_offset << " mem " << mem_addr << "+" << bit_offset << endl;
// for each job we're actually doing *8* experiments (one for each bit)
for (int bit_offset = 0; bit_offset < 8; ++bit_offset) {
WeathermonitorProtoMsg_Result *result = param.msg.add_result();
result->set_bit_offset(bit_offset);
log << std::dec << "job " << id << " instr " << instr_offset
<< " mem " << mem_addr << "+" << bit_offset << endl;
// XXX debug
/*
@ -171,25 +177,26 @@ bool WeathermonitorExperiment::run()
ss << "SANITY CHECK FAILED: " << injection_ip
<< " != " << param.msg.instr_address();
log << ss.str() << endl;
param.msg.set_resulttype(param.msg.UNKNOWN);
param.msg.set_latest_ip(injection_ip);
param.msg.set_details(ss.str());
result->set_resulttype(result->UNKNOWN);
result->set_latest_ip(injection_ip);
result->set_details(ss.str());
result->set_num_iterations(666); // FIXME
sal::simulator.clearEvents();
#if !LOCAL
m_jc.sendResult(param);
continue;
#endif
}
// --- aftermath ---
// four possible outcomes:
// possible outcomes:
// - trap, "crash"
// - jump outside text segment
// - (XXX unaligned jump inside text segment)
// - (XXX weird instructions?)
// - (XXX results displayed?)
// - reaches THE END
// additional info:
// - (XXX #loop iterations?)
// - (XXX "sane" display?)
// catch traps as "extraordinary" ending
fi::TrapEvent ev_trap(fi::ANY_TRAP);
@ -213,35 +220,36 @@ bool WeathermonitorExperiment::run()
fi::BaseEvent* ev = sal::simulator.waitAny();
// record latest IP regardless of result
param.msg.set_latest_ip(sal::simulator.getRegisterManager().getInstructionPointer());
result->set_latest_ip(sal::simulator.getRegisterManager().getInstructionPointer());
if (ev == &ev_end) {
log << "Result FINISHED" << endl;
param.msg.set_resulttype(param.msg.FINISHED);
result->set_resulttype(result->FINISHED);
} else if (ev == &ev_below_text || ev == &ev_beyond_text) {
log << "Result OUTSIDE" << endl;
param.msg.set_resulttype(param.msg.OUTSIDE);
result->set_resulttype(result->OUTSIDE);
} else if (ev == &ev_trap) {
log << std::dec << "Result TRAP #" << ev_trap.getTriggerNumber() << endl;
param.msg.set_resulttype(param.msg.TRAP);
result->set_resulttype(result->TRAP);
std::stringstream ss;
ss << ev_trap.getTriggerNumber();
param.msg.set_details(ss.str());
result->set_details(ss.str());
} else {
log << "Result WTF?" << endl;
param.msg.set_resulttype(param.msg.UNKNOWN);
result->set_resulttype(result->UNKNOWN);
std::stringstream ss;
ss << "eventid " << ev->getId() << " EIP " << sal::simulator.getRegisterManager().getInstructionPointer();
param.msg.set_details(ss.str());
result->set_details(ss.str());
}
}
// FIXME do we have exactly 8 results? if (param.msg.
#if !LOCAL
m_jc.sendResult(param);
}
#endif
// XXX
#endif
// Explicitly terminate, or the simulator will continue to run.

27
core/experiments/weathermonitor/weathermonitor.proto
View File

@ -1,21 +1,30 @@
message WeathermonitorProtoMsg {
// Input: experiment parameters
// (client executes 8 experiments, one for each bit at mem_addr)
// FI at #instructions from experiment start
required int32 instr_offset = 1;
// the exact IP value at this point in time (from golden run)
optional int32 instr_address = 2; // for sanity checks
// address of the byte to inject bit-flips
required int32 mem_addr = 3;
required int32 bit_offset = 4;
// ----------------------------------------------------
// Output: experiment results
// (make these optional to reduce overhead for server->client communication)
// instruction pointer where injection was done
optional uint32 injection_ip = 5;
// IP where we did the injection: for debugging purposes, must be identical
// to instr_address
optional int32 injection_ip = 4;
repeated group Result = 5 {
// single experiment bit offset
required int32 bit_offset = 1;
// result type:
// FINISHED = planned number of instructions were executed
// TRAP = premature guest "crash"
// OUTSIDE = IP left text segment
enum ResultType {
FINISHED = 1;
TRAP = 2;
@ -23,11 +32,15 @@ message WeathermonitorProtoMsg {
HALT = 4;
UNKNOWN = 5;
}
optional ResultType resulttype = 6;
required ResultType resulttype = 2;
// especially interesting for TRAP/UNKNOWN: latest IP
optional uint32 latest_ip = 7;
required uint32 latest_ip = 3;
// total number of wmoo measuring/displaying iterations seen
required uint32 num_iterations = 4;
// optional textual description of what happened
optional string details = 8;
optional string details = 5;
}
}