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plugin/tracing: merge full-tracing plugin into generic version

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The full-tracing plugin was used in the DSN paper. It additionally
traces the data that was accessed/written on a memory access and the
contents of some CPU registers.

Change-Id: I61f5230699009ce523aba341985b98148160556d
This commit is contained in:
Christian Dietrich
2013-03-15 15:35:37 +01:00
committed by Gerrit Code Review
parent cffafa411c
commit 4e8098a636
7 changed files with 281 additions and 186 deletions
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50
src/plugins/tracing/TracingPlugin.cc
View File

@ -1,7 +1,9 @@
#include <iostream>
#include <assert.h>
#include "sal/SALInst.hpp"
#include "sal/Register.hpp"
#include "sal/Memory.hpp"
#include "sal/Listener.hpp"
#include "TracingPlugin.hpp"
@ -10,6 +12,8 @@ using namespace fail;
bool TracingPlugin::run()
{
MemoryManager& mm = simulator.getMemoryManager();
MemAccessListener ev_mem(ANY_ADDR);
BPSingleListener ev_step(ANY_ADDR);
BaseListener *ev;
@ -23,13 +27,24 @@ bool TracingPlugin::run()
if(m_protoStreamFile) {
ps = new ProtoOStream(m_protoStreamFile);
}
#ifdef BUILD_X86
size_t ids[] = {RID_CSP, RID_CBP, RID_FLAGS};
#else
size_t ids[] = {};
#endif
Register *regs[sizeof(ids)/sizeof(*ids)];
for (unsigned i = 0; i < sizeof(ids)/sizeof(*ids); ++i)
regs[i] = simulator.getCPU(0).getRegister(ids[i]);
while (true) {
ev = simulator.resume();
if (ev == &ev_step) {
simulator.addListener(&ev_step);
address_t ip = ev_step.getTriggerInstructionPointer();
if (m_ipMap && !m_ipMap->isMatching(ip)) {
continue;
@ -49,15 +64,15 @@ bool TracingPlugin::run()
address_t addr = ev_mem.getTriggerAddress();
size_t width = ev_mem.getTriggerWidth();
if ((m_ipMap && !m_ipMap->isMatching(ip)) ||
(m_memMap && !m_memMap->isMatching(addr, width))) {
(m_memMap && !m_memMap->isMatching(addr, width))) {
continue;
}
if (m_os)
*m_os << hex << "[Tracing] MEM "
<< ((ev_mem.getTriggerAccessType() &
MemAccessEvent::MEM_READ) ? "R " : "W ")
<< addr << " width " << width << " IP " << ip << "\n";
<< ((ev_mem.getTriggerAccessType() &
MemAccessEvent::MEM_READ) ? "R " : "W ")
<< addr << " width " << width << " IP " << ip << "\n";
if (m_protoStreamFile) {
Trace_Event e;
e.set_ip(ip);
@ -66,6 +81,29 @@ bool TracingPlugin::run()
e.set_accesstype(
(ev_mem.getTriggerAccessType() & MemAccessEvent::MEM_READ) ?
e.READ : e.WRITE);
/* When we're doing a full trace, we log more data in
the case of a memory event */
if (m_full_trace) {
Trace_Event_Extended &ext = *e.mutable_trace_ext();
// Read the accessed data
assert(width <= 8);
uint64_t data = 0;
mm.getBytes(addr, width, &data);
ext.set_data(data);
for (unsigned i = 0; i < sizeof(ids)/sizeof(*ids); ++i) {
Trace_Event_Extended_Registers *er = ext.add_registers();
er->set_id(ids[i]);
er->set_value(simulator.getCPU(0).getRegisterContent(regs[i]));
if (er->value() <= mm.getPoolSize() - width) {
uint32_t value_deref;
mm.getBytes(er->value(), 4, &value_deref);
er->set_value_deref(value_deref);
}
}
}
ps->writeMessage(&e);
}
} else {