mem: Add Program Counter to MemTraceProbe

This commit is contained in:
Victor Garcia 2016-04-07 11:32:38 -05:00
parent a3bf4aa6ec
commit df5a811833
5 changed files with 21 additions and 4 deletions

View file

@ -46,6 +46,9 @@ class MemTraceProbe(BaseMemProbe):
# Boolean to compress the trace or not.
trace_compress = Param.Bool(True, "Enable trace compression")
# For requests with a valid PC, include the PC in the trace
with_pc = Param.Bool(False, "Include PC info in the trace")
# packet trace output file, disabled by default
trace_file = Param.String("", "Packet trace output file")

View file

@ -47,7 +47,8 @@
MemTraceProbe::MemTraceProbe(MemTraceProbeParams *p)
: BaseMemProbe(p),
traceStream(nullptr)
traceStream(nullptr),
withPC(p->with_pc)
{
std::string filename;
if (p->trace_file != "") {
@ -102,6 +103,8 @@ MemTraceProbe::handleRequest(const ProbePoints::PacketInfo &pkt_info)
pkt_msg.set_flags(pkt_info.flags);
pkt_msg.set_addr(pkt_info.addr);
pkt_msg.set_size(pkt_info.size);
if (withPC && pkt_info.pc != 0)
pkt_msg.set_pc(pkt_info.pc);
traceStream->write(pkt_msg);
}

View file

@ -64,6 +64,11 @@ class MemTraceProbe : public BaseMemProbe
/** Trace output stream */
ProtoOutputStream *traceStream;
private:
/** Include the Program Counter in the memory trace */
const bool withPC;
};
#endif //__MEM_PROBES_MEM_TRACE_HH__

View file

@ -56,12 +56,14 @@ struct PacketInfo {
Addr addr;
uint32_t size;
Request::FlagsType flags;
Addr pc;
explicit PacketInfo(const PacketPtr& pkt) :
cmd(pkt->cmd),
addr(pkt->getAddr()),
size(pkt->getSize()),
flags(pkt->req->getFlags()) { }
flags(pkt->req->getFlags()),
pc(pkt->req->hasPC() ? pkt->req->getPC() : 0) { }
};
/**

View file

@ -118,11 +118,15 @@ def main():
if packet.HasField('pkt_id'):
ascii_out.write('%s,' % (packet.pkt_id))
if packet.HasField('flags'):
ascii_out.write('%s,%s,%s,%s,%s\n' % (cmd, packet.addr, packet.size,
ascii_out.write('%s,%s,%s,%s,%s' % (cmd, packet.addr, packet.size,
packet.flags, packet.tick))
else:
ascii_out.write('%s,%s,%s,%s\n' % (cmd, packet.addr, packet.size,
ascii_out.write('%s,%s,%s,%s' % (cmd, packet.addr, packet.size,
packet.tick))
if packet.HasField('pc'):
ascii_out.write(',%s\n' % (packet.pc))
else:
ascii_out.write('\n')
print "Parsed packets:", num_packets