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L4-sys refactoring

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move preparation steps into separate functions

Change-Id: I4930ec38f003302596f215a08cd8bf455f525571
This commit is contained in:
Björn Döbel
2013-08-27 10:02:38 +02:00
parent 64840c02e4
commit da7f9caf64
2 changed files with 43 additions and 11 deletions
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39
src/experiments/l4-sys/experiment.cc
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@ -203,14 +203,9 @@ void L4SysExperiment::terminateWithError(string details, int reason) {
terminate(reason);
}
bool L4SysExperiment::run() {
BPSingleListener bp(0, L4SYS_ADDRESS_SPACE);
srand(time(NULL));
log << "startup" << endl;
#if PREPARATION_STEP == 1
// STEP 1: run until interesting function starts, and save state
void L4SysExperiment::startAndSaveInitState(fail::BPSingleListener& bp)
{
bp.setWatchInstructionPointer(L4SYS_FUNC_ENTRY);
simulator.addListenerAndResume(&bp);
@ -221,8 +216,10 @@ bool L4SysExperiment::run() {
<< endl;
log << "check the source code if the two instruction pointers are not equal" << endl;
simulator.save(L4SYS_STATE_FOLDER);
#elif PREPARATION_STEP == 2
// STEP 2: determine instructions executed
}
void L4SysExperiment::collectInstructionTrace(fail::BPSingleListener& bp)
{
log << "restoring state" << endl;
simulator.restore(L4SYS_STATE_FOLDER);
log << "EIP = " << hex
@ -288,9 +285,10 @@ bool L4SysExperiment::run() {
<< dec << count << " instructions; "
<< "ul: " << ul << ", kernel: " << kernel << endl;
#endif
}
#elif PREPARATION_STEP == 3
// STEP 3: determine the output of a "golden run"
void L4SysExperiment::goldenRun(fail::BPSingleListener& bp)
{
log << "restoring state" << endl;
simulator.restore(L4SYS_STATE_FOLDER);
log << "EIP = " << hex
@ -316,6 +314,25 @@ bool L4SysExperiment::run() {
log << "saving output generated during normal execution" << endl;
golden_run_file.close();
}
bool L4SysExperiment::run() {
BPSingleListener bp(0, L4SYS_ADDRESS_SPACE);
srand(time(NULL));
log << "startup" << endl;
#if PREPARATION_STEP == 1
// STEP 1: run until interesting function starts, and save state
startAndSaveInitState(bp);
#elif PREPARATION_STEP == 2
// STEP 2: determine instructions executed
collectInstructionTrace(bp);
#elif PREPARATION_STEP == 3
// STEP 3: determine the output of a "golden run"
goldenRun(bp);
#elif PREPARATION_STEP == 0
// LAST STEP: The actual experiment.