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ecos: fix golden-run runtime conversion

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BochsController::getTimerTicksPerSecond() only works reliably when the
simulation is already running (e.g., after a restore()).  This broke
timeout conditions for the very first experiment in a FailBochs instance.

Change-Id: Ice5f0aa0c6759f2d9341ad4f21d5c346307b4c12
This commit is contained in:
Horst Schirmeier
2014-04-15 17:30:05 +02:00
parent b1c9c295ca
commit 07968377b3
2 changed files with 11 additions and 4 deletions
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4
src/core/sal/bochs/BochsController.hpp
View File

@ -116,6 +116,10 @@ public:
*/
void fireInterruptDone();
virtual simtime_t getTimerTicks() { return bx_pc_system.time_ticks(); }
/**
* Only works reliably when the simulation has already begun, e.g., after
* calling simulator.restore().
*/
virtual simtime_t getTimerTicksPerSecond() { return bx_pc_system.time_ticks() / bx_pc_system.time_usec() * 1000000; /* imprecise hack */ }
/* ********************************************************************
* BochsController-specific (not implemented in SimulatorController!):

11
src/experiments/ecos_kernel_test/experiment.cc
View File

@ -507,10 +507,7 @@ bool EcosKernelTestExperiment::faultInjection() {
readTraceInfo(goldenrun_instr_counter, goldenrun_runtime_ticks,
mem1_low, mem1_high, mem2_low, mem2_high, m_variant, m_benchmark);
// convert to microseconds
goldenrun_runtime = (unsigned)
(goldenrun_runtime_ticks * 1000000.0 / simulator.getTimerTicksPerSecond());
timeout_runtime = goldenrun_runtime + 1000000/18.2; // + 1 timer tick
if (!readELFSymbols(addr_entry, addr_finish,
addr_testdata, addr_testdata_size, addr_test_output,
addr_errors_corrected, addr_panic, addr_text_start, addr_text_end,
@ -555,6 +552,12 @@ bool EcosKernelTestExperiment::faultInjection() {
log << "restoring state" << endl;
simulator.restore(statename);
// convert to microseconds (simulator.getTimerTicksPerSecond() only
// works reliably when simulation has begun)
goldenrun_runtime = (unsigned)
(goldenrun_runtime_ticks * 1000000.0 / simulator.getTimerTicksPerSecond());
timeout_runtime = goldenrun_runtime + 1000000/18.2; // + 1 timer tick
// the outcome of ecos' test case
bool ecos_test_passed = false;
bool ecos_test_failed = false;