christoph/fail
1
Fork 0
Code Releases Activity

Adjust instruction tracing

Browse Source 
write a trace file that can be input to the *-trace FAIL tools

Change-Id: Iaa13fab5bcba86f3d940831d9ea583a458998191
This commit is contained in:
Björn Döbel
2013-08-28 10:16:13 +02:00
parent 6ddc7d911b
commit 2a06b97480
3 changed files with 20 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/experiments/l4-sys/experiment.cc
View File

@ -19,6 +19,8 @@
#include "sal/Memory.hpp"
#include "sal/Listener.hpp"
#include "config/FailConfig.hpp"
#include "util/ProtoStream.hpp"
#include "TracePlugin.pb.h"
#include "l4sys.pb.h"
@ -235,6 +237,9 @@ void L4SysExperiment::collectInstructionTrace(fail::BPSingleListener& bp)
map<address_t, unsigned> times_called_map;
bool injecting = false;
std::ofstream out("trace.pb");
ProtoOStream *os = new ProtoOStream(&out);
while (bp.getTriggerInstructionPointer() != L4SYS_FUNC_EXIT) {
simulator.addListenerAndResume(&bp);
count++;
@ -260,13 +265,24 @@ void L4SysExperiment::collectInstructionTrace(fail::BPSingleListener& bp)
reinterpret_cast<char const*>(calculateInstructionAddress()))
) {
accepted++;
// 1) The 'old' way of logging instructions -> DEPRECATE soon
TraceInstr new_instr;
log << "writing IP " << hex << curr_addr << " counter "
<< dec << times_called << endl;
<< dec << times_called << "(" << hex << BX_CPU(0)->cr3 << ")"
<< endl;
new_instr.trigger_addr = curr_addr;
new_instr.bp_counter = times_called;
instr_list_file.write(reinterpret_cast<char*>(&new_instr), sizeof(TraceInstr));
// 2) The 'new' way -> generate Events that can be processed by
// the generic *-trace tools
// XXX: need to log CR3 if we want multiple binaries here
Trace_Event e;
e.set_ip(curr_addr);
os->writeMessage(&e);
}
}
log << "saving instructions triggered during normal execution" << endl;