9cd40842d2
The input (taken on stdin) is a gem5.opt --debug-flags=MemoryAccess trace (--format gem5), or a dump-trace output (--format dump) for easy trace synthesis (for testing purposes). gem5 format: Currently imports physical, not virtual memory addresses. dump format: Currently ignores extended trace information. Change-Id: Ic26a996d6fb9ce4175c855fadcbcff9ac9263888
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
#include <sstream>
|
|
#include <string>
|
|
#include "util/Logger.hpp"
|
|
#include "comm/TracePlugin.pb.h"
|
|
#include "DumpConverter.hpp"
|
|
|
|
using namespace fail;
|
|
using std::stringstream;
|
|
using std::endl;
|
|
using std::hex;
|
|
using std::dec;
|
|
|
|
static Logger LOG("DumpConverter", true);
|
|
|
|
// TODO: convert extended trace information, too
|
|
bool DumpConverter::convert()
|
|
{
|
|
char buf[2048], dummy[1024];
|
|
int64_t prev_cycle = 0, cycle;
|
|
|
|
while (m_input.getline(buf, sizeof(buf))) {
|
|
Trace_Event ev;
|
|
// IP 1035c9 t=0
|
|
// MEM R 123abc width 4 IP 1035c9 t=1
|
|
// MEM W 123abc width 4 IP 1035c9 t=1
|
|
|
|
std::stringstream ss(buf);
|
|
std::string ev_type;
|
|
ss >> ev_type;
|
|
|
|
if (ev_type == "MEM") {
|
|
std::string accesstype;
|
|
uint64_t data_address;
|
|
uint32_t data_width;
|
|
ss >> accesstype >> hex >> data_address >> dummy >> dec >> data_width >> ev_type;
|
|
if (!ss) {
|
|
LOG << "input mismatch (1), input = " << buf << endl;
|
|
continue;
|
|
}
|
|
ev.set_memaddr(data_address);
|
|
ev.set_width(data_width);
|
|
ev.set_accesstype(accesstype == "R" ? ev.READ : ev.WRITE);
|
|
}
|
|
assert(ev_type == "IP");
|
|
|
|
uint64_t instr_address;
|
|
ss >> hex >> instr_address >> dummy;
|
|
if (!ss || dummy[0] != 't' || dummy[1] != '=') {
|
|
LOG << "input mismatch (2), input = " << buf << endl;
|
|
continue;
|
|
}
|
|
ev.set_ip(instr_address);
|
|
ss.clear();
|
|
ss.str(dummy + 2);
|
|
ss >> dec >> cycle;
|
|
if (!ss) {
|
|
LOG << "input mismatch (3), input = " << buf << endl;
|
|
continue;
|
|
}
|
|
|
|
if (cycle - prev_cycle > 0) {
|
|
ev.set_time_delta(cycle - prev_cycle);
|
|
prev_cycle = cycle;
|
|
} else if (cycle - prev_cycle < 0) {
|
|
LOG << "ignoring time discontinuity " << dec << prev_cycle << " -> " << cycle << endl;
|
|
prev_cycle = cycle;
|
|
}
|
|
|
|
m_ps.writeMessage(&ev);
|
|
}
|
|
|
|
return true;
|
|
}
|