Files
gem5/src/cpu/exetrace.cc
Ali Saidi a8b2d66661 change when legion-lock causes the simulation to die. It now happens after two consuctive differences since we compare stuff
at slightly different times interrupts are seen the cycle before they happen in m5 so the pc gets changed early.

--HG--
extra : convert_revision : f237363eababb2aad67e5b41670cf40be048a042
2007-01-08 17:11:10 -05:00

731 lines
30 KiB
C++

/*
* Copyright (c) 2001-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Steve Reinhardt
* Lisa Hsu
* Nathan Binkert
* Steve Raasch
*/
#include <fstream>
#include <iomanip>
#include <sys/ipc.h>
#include <sys/shm.h>
#include "arch/regfile.hh"
#include "arch/utility.hh"
#include "base/loader/symtab.hh"
#include "config/full_system.hh"
#include "cpu/base.hh"
#include "cpu/exetrace.hh"
#include "cpu/static_inst.hh"
#include "sim/param.hh"
#include "sim/system.hh"
#if FULL_SYSTEM
#include "arch/tlb.hh"
#endif
//XXX This is temporary
#include "arch/isa_specific.hh"
#include "cpu/m5legion_interface.h"
using namespace std;
using namespace TheISA;
#if THE_ISA == SPARC_ISA && FULL_SYSTEM
static int diffcount = 0;
#endif
namespace Trace {
SharedData *shared_data = NULL;
}
////////////////////////////////////////////////////////////////////////
//
// Methods for the InstRecord object
//
#if THE_ISA == SPARC_ISA
inline char * genCenteredLabel(int length, char * buffer, char * label)
{
int labelLength = strlen(label);
assert(labelLength <= length);
int leftPad = (length - labelLength) / 2;
int rightPad = length - leftPad - labelLength;
char format[64];
sprintf(format, "%%%ds%%s%%%ds", leftPad, rightPad);
sprintf(buffer, format, "", label, "");
return buffer;
}
inline void printRegPair(ostream & os, char const * title, uint64_t a, uint64_t b)
{
ccprintf(os, " %16s | %#018x %s %#-018x \n",
title, a, (a == b) ? "|" : "X", b);
}
inline void printColumnLabels(ostream & os)
{
static char * regLabel = genCenteredLabel(16, new char[17], "Register");
static char * m5Label = genCenteredLabel(18, new char[18], "M5");
static char * legionLabel = genCenteredLabel(18, new char[18], "Legion");
ccprintf(os, " %s | %s | %s \n", regLabel, m5Label, legionLabel);
ccprintf(os, "--------------------+-----------------------+-----------------------\n");
}
inline void printSectionHeader(ostream & os, char * name)
{
char sectionString[70];
genCenteredLabel(69, sectionString, name);
ccprintf(os, "====================================================================\n");
ccprintf(os, "%69s\n", sectionString);
ccprintf(os, "====================================================================\n");
}
inline void printLevelHeader(ostream & os, int level)
{
char sectionString[70];
char levelName[70];
sprintf(levelName, "Trap stack level %d", level);
genCenteredLabel(69, sectionString, levelName);
ccprintf(os, "====================================================================\n");
ccprintf(os, "%69s\n", sectionString);
ccprintf(os, "====================================================================\n");
}
#endif
void
Trace::InstRecord::dump(ostream &outs)
{
if (flags[PRINT_REG_DELTA])
{
#if THE_ISA == SPARC_ISA
//Don't print what happens for each micro-op, just print out
//once at the last op, and for regular instructions.
if(!staticInst->isMicroOp() || staticInst->isLastMicroOp())
{
static uint64_t regs[32] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
static uint64_t ccr = 0;
static uint64_t y = 0;
static uint64_t floats[32];
uint64_t newVal;
static const char * prefixes[4] = {"G", "O", "L", "I"};
outs << hex;
outs << "PC = " << thread->readNextPC();
outs << " NPC = " << thread->readNextNPC();
newVal = thread->readMiscReg(SparcISA::MISCREG_CCR);
if(newVal != ccr)
{
outs << " CCR = " << newVal;
ccr = newVal;
}
newVal = thread->readMiscReg(SparcISA::MISCREG_Y);
if(newVal != y)
{
outs << " Y = " << newVal;
y = newVal;
}
for(int y = 0; y < 4; y++)
{
for(int x = 0; x < 8; x++)
{
int index = x + 8 * y;
newVal = thread->readIntReg(index);
if(regs[index] != newVal)
{
outs << " " << prefixes[y] << dec << x << " = " << hex << newVal;
regs[index] = newVal;
}
}
}
for(int y = 0; y < 32; y++)
{
newVal = thread->readFloatRegBits(2 * y, 64);
if(floats[y] != newVal)
{
outs << " F" << dec << (2 * y) << " = " << hex << newVal;
floats[y] = newVal;
}
}
outs << dec << endl;
}
#endif
}
else if (flags[INTEL_FORMAT]) {
#if FULL_SYSTEM
bool is_trace_system = (thread->getCpuPtr()->system->name() == trace_system);
#else
bool is_trace_system = true;
#endif
if (is_trace_system) {
ccprintf(outs, "%7d ) ", cycle);
outs << "0x" << hex << PC << ":\t";
if (staticInst->isLoad()) {
outs << "<RD 0x" << hex << addr;
outs << ">";
} else if (staticInst->isStore()) {
outs << "<WR 0x" << hex << addr;
outs << ">";
}
outs << endl;
}
} else {
if (flags[PRINT_CYCLE])
ccprintf(outs, "%7d: ", cycle);
outs << thread->getCpuPtr()->name() << " ";
if (flags[TRACE_MISSPEC])
outs << (misspeculating ? "-" : "+") << " ";
if (flags[PRINT_THREAD_NUM])
outs << "T" << thread->getThreadNum() << " : ";
std::string sym_str;
Addr sym_addr;
if (debugSymbolTable
&& debugSymbolTable->findNearestSymbol(PC, sym_str, sym_addr)
&& flags[PC_SYMBOL]) {
if (PC != sym_addr)
sym_str += csprintf("+%d", PC - sym_addr);
outs << "@" << sym_str << " : ";
}
else {
outs << "0x" << hex << PC << " : ";
}
//
// Print decoded instruction
//
#if defined(__GNUC__) && (__GNUC__ < 3)
// There's a bug in gcc 2.x library that prevents setw()
// from working properly on strings
string mc(staticInst->disassemble(PC, debugSymbolTable));
while (mc.length() < 26)
mc += " ";
outs << mc;
#else
outs << setw(26) << left << staticInst->disassemble(PC, debugSymbolTable);
#endif
outs << " : ";
if (flags[PRINT_OP_CLASS]) {
outs << opClassStrings[staticInst->opClass()] << " : ";
}
if (flags[PRINT_RESULT_DATA] && data_status != DataInvalid) {
outs << " D=";
#if 0
if (data_status == DataDouble)
ccprintf(outs, "%f", data.as_double);
else
ccprintf(outs, "%#018x", data.as_int);
#else
ccprintf(outs, "%#018x", data.as_int);
#endif
}
if (flags[PRINT_EFF_ADDR] && addr_valid)
outs << " A=0x" << hex << addr;
if (flags[PRINT_INT_REGS] && regs_valid) {
for (int i = 0; i < TheISA::NumIntRegs;)
for (int j = i + 1; i <= j; i++)
ccprintf(outs, "r%02d = %#018x%s", i,
iregs->regs.readReg(i),
((i == j) ? "\n" : " "));
outs << "\n";
}
if (flags[PRINT_FETCH_SEQ] && fetch_seq_valid)
outs << " FetchSeq=" << dec << fetch_seq;
if (flags[PRINT_CP_SEQ] && cp_seq_valid)
outs << " CPSeq=" << dec << cp_seq;
//
// End of line...
//
outs << endl;
}
#if THE_ISA == SPARC_ISA && FULL_SYSTEM
// Compare
if (flags[LEGION_LOCKSTEP])
{
bool compared = false;
bool diffPC = false;
bool diffCC = false;
bool diffInst = false;
bool diffRegs = false;
bool diffTpc = false;
bool diffTnpc = false;
bool diffTstate = false;
bool diffTt = false;
bool diffTba = false;
bool diffHpstate = false;
bool diffHtstate = false;
bool diffHtba = false;
bool diffPstate = false;
bool diffY = false;
bool diffCcr = false;
bool diffTl = false;
bool diffGl = false;
bool diffAsi = false;
bool diffPil = false;
bool diffCwp = false;
bool diffCansave = false;
bool diffCanrestore = false;
bool diffOtherwin = false;
bool diffCleanwin = false;
bool diffTlb = false;
Addr m5Pc, lgnPc;
if(!staticInst->isMicroOp() || staticInst->isLastMicroOp()) {
while (!compared) {
if (shared_data->flags == OWN_M5) {
m5Pc = PC & TheISA::PAddrImplMask;
lgnPc = shared_data->pc & TheISA::PAddrImplMask;
if (lgnPc != m5Pc)
diffPC = true;
if (shared_data->cycle_count !=
thread->getCpuPtr()->instCount())
diffCC = true;
if (shared_data->instruction !=
(SparcISA::MachInst)staticInst->machInst) {
diffInst = true;
}
for (int i = 0; i < TheISA::NumIntArchRegs; i++) {
if (thread->readIntReg(i) != shared_data->intregs[i]) {
diffRegs = true;
}
}
uint64_t oldTl = thread->readMiscReg(MISCREG_TL);
if (oldTl != shared_data->tl)
diffTl = true;
for (int i = 1; i <= MaxTL; i++) {
thread->setMiscReg(MISCREG_TL, i);
if (thread->readMiscReg(MISCREG_TPC) !=
shared_data->tpc[i-1])
diffTpc = true;
if (thread->readMiscReg(MISCREG_TNPC) !=
shared_data->tnpc[i-1])
diffTnpc = true;
if (thread->readMiscReg(MISCREG_TSTATE) !=
shared_data->tstate[i-1])
diffTstate = true;
if (thread->readMiscReg(MISCREG_TT) !=
shared_data->tt[i-1])
diffTt = true;
if (thread->readMiscReg(MISCREG_HTSTATE) !=
shared_data->htstate[i-1])
diffHtstate = true;
}
thread->setMiscReg(MISCREG_TL, oldTl);
if(shared_data->tba != thread->readMiscReg(MISCREG_TBA))
diffTba = true;
//When the hpstate register is read by an instruction,
//legion has bit 11 set. When it's in storage, it doesn't.
//Since we don't directly support seperate interpretations
//of the registers like that, the bit is always set to 1 and
//we just don't compare it. It's not supposed to matter
//anyway.
if((shared_data->hpstate | (1 << 11)) != thread->readMiscReg(MISCREG_HPSTATE))
diffHpstate = true;
if(shared_data->htba != thread->readMiscReg(MISCREG_HTBA))
diffHtba = true;
if(shared_data->pstate != thread->readMiscReg(MISCREG_PSTATE))
diffPstate = true;
if(shared_data->y != thread->readMiscReg(MISCREG_Y))
diffY = true;
if(shared_data->ccr != thread->readMiscReg(MISCREG_CCR))
diffCcr = true;
if(shared_data->gl != thread->readMiscReg(MISCREG_GL))
diffGl = true;
if(shared_data->asi != thread->readMiscReg(MISCREG_ASI))
diffAsi = true;
if(shared_data->pil != thread->readMiscReg(MISCREG_PIL))
diffPil = true;
if(shared_data->cwp != thread->readMiscReg(MISCREG_CWP))
diffCwp = true;
if(shared_data->cansave != thread->readMiscReg(MISCREG_CANSAVE))
diffCansave = true;
if(shared_data->canrestore !=
thread->readMiscReg(MISCREG_CANRESTORE))
diffCanrestore = true;
if(shared_data->otherwin != thread->readMiscReg(MISCREG_OTHERWIN))
diffOtherwin = true;
if(shared_data->cleanwin != thread->readMiscReg(MISCREG_CLEANWIN))
diffCleanwin = true;
for (int i = 0; i < 64; i++) {
if (shared_data->itb[i] != thread->getITBPtr()->TteRead(i))
diffTlb = true;
if (shared_data->dtb[i] != thread->getDTBPtr()->TteRead(i))
diffTlb = true;
}
if ((diffPC || diffCC || diffInst || diffRegs || diffTpc ||
diffTnpc || diffTstate || diffTt || diffHpstate ||
diffHtstate || diffHtba || diffPstate || diffY ||
diffCcr || diffTl || diffGl || diffAsi || diffPil ||
diffCwp || diffCansave || diffCanrestore ||
diffOtherwin || diffCleanwin || diffTlb)
&& !((staticInst->machInst & 0xC1F80000) == 0x81D00000)
&& !(((staticInst->machInst & 0xC0000000) == 0xC0000000)
&& shared_data->tl == thread->readMiscReg(MISCREG_TL) + 1)
) {
outs << "Differences found between M5 and Legion:";
if (diffPC)
outs << " [PC]";
if (diffCC)
outs << " [CC]";
if (diffInst)
outs << " [Instruction]";
if (diffRegs)
outs << " [IntRegs]";
if (diffTpc)
outs << " [Tpc]";
if (diffTnpc)
outs << " [Tnpc]";
if (diffTstate)
outs << " [Tstate]";
if (diffTt)
outs << " [Tt]";
if (diffHpstate)
outs << " [Hpstate]";
if (diffHtstate)
outs << " [Htstate]";
if (diffHtba)
outs << " [Htba]";
if (diffPstate)
outs << " [Pstate]";
if (diffY)
outs << " [Y]";
if (diffCcr)
outs << " [Ccr]";
if (diffTl)
outs << " [Tl]";
if (diffGl)
outs << " [Gl]";
if (diffAsi)
outs << " [Asi]";
if (diffPil)
outs << " [Pil]";
if (diffCwp)
outs << " [Cwp]";
if (diffCansave)
outs << " [Cansave]";
if (diffCanrestore)
outs << " [Canrestore]";
if (diffOtherwin)
outs << " [Otherwin]";
if (diffCleanwin)
outs << " [Cleanwin]";
if (diffTlb)
outs << " [Tlb]";
outs << endl << endl;
outs << right << setfill(' ') << setw(15)
<< "M5 PC: " << "0x"<< setw(16) << setfill('0')
<< hex << m5Pc << endl;
outs << setfill(' ') << setw(15)
<< "Legion PC: " << "0x"<< setw(16) << setfill('0') << hex
<< lgnPc << endl << endl;
outs << right << setfill(' ') << setw(15)
<< "M5 CC: " << "0x"<< setw(16) << setfill('0')
<< hex << thread->getCpuPtr()->instCount() << endl;
outs << setfill(' ') << setw(15)
<< "Legion CC: " << "0x"<< setw(16) << setfill('0') << hex
<< shared_data->cycle_count << endl << endl;
outs << setfill(' ') << setw(15)
<< "M5 Inst: " << "0x"<< setw(8)
<< setfill('0') << hex << staticInst->machInst
<< staticInst->disassemble(m5Pc, debugSymbolTable)
<< endl;
StaticInstPtr legionInst =
StaticInst::decode(makeExtMI(shared_data->instruction,
thread));
outs << setfill(' ') << setw(15)
<< " Legion Inst: "
<< "0x" << setw(8) << setfill('0') << hex
<< shared_data->instruction
<< legionInst->disassemble(lgnPc, debugSymbolTable)
<< endl << endl;
printSectionHeader(outs, "General State");
printColumnLabels(outs);
printRegPair(outs, "HPstate",
thread->readMiscReg(MISCREG_HPSTATE),
shared_data->hpstate | (1 << 11));
printRegPair(outs, "Htba",
thread->readMiscReg(MISCREG_HTBA),
shared_data->htba);
printRegPair(outs, "Pstate",
thread->readMiscReg(MISCREG_PSTATE),
shared_data->pstate);
printRegPair(outs, "Y",
thread->readMiscReg(MISCREG_Y),
shared_data->y);
printRegPair(outs, "Ccr",
thread->readMiscReg(MISCREG_CCR),
shared_data->ccr);
printRegPair(outs, "Tl",
thread->readMiscReg(MISCREG_TL),
shared_data->tl);
printRegPair(outs, "Gl",
thread->readMiscReg(MISCREG_GL),
shared_data->gl);
printRegPair(outs, "Asi",
thread->readMiscReg(MISCREG_ASI),
shared_data->asi);
printRegPair(outs, "Pil",
thread->readMiscReg(MISCREG_PIL),
shared_data->pil);
printRegPair(outs, "Cwp",
thread->readMiscReg(MISCREG_CWP),
shared_data->cwp);
printRegPair(outs, "Cansave",
thread->readMiscReg(MISCREG_CANSAVE),
shared_data->cansave);
printRegPair(outs, "Canrestore",
thread->readMiscReg(MISCREG_CANRESTORE),
shared_data->canrestore);
printRegPair(outs, "Otherwin",
thread->readMiscReg(MISCREG_OTHERWIN),
shared_data->otherwin);
printRegPair(outs, "Cleanwin",
thread->readMiscReg(MISCREG_CLEANWIN),
shared_data->cleanwin);
outs << endl;
for (int i = 1; i <= MaxTL; i++) {
printLevelHeader(outs, i);
printColumnLabels(outs);
thread->setMiscReg(MISCREG_TL, i);
printRegPair(outs, "Tpc",
thread->readMiscReg(MISCREG_TPC),
shared_data->tpc[i-1]);
printRegPair(outs, "Tnpc",
thread->readMiscReg(MISCREG_TNPC),
shared_data->tnpc[i-1]);
printRegPair(outs, "Tstate",
thread->readMiscReg(MISCREG_TSTATE),
shared_data->tstate[i-1]);
printRegPair(outs, "Tt",
thread->readMiscReg(MISCREG_TT),
shared_data->tt[i-1]);
printRegPair(outs, "Htstate",
thread->readMiscReg(MISCREG_HTSTATE),
shared_data->htstate[i-1]);
}
thread->setMiscReg(MISCREG_TL, oldTl);
outs << endl;
printSectionHeader(outs, "General Purpose Registers");
static const char * regtypes[4] = {"%g", "%o", "%l", "%i"};
for(int y = 0; y < 4; y++)
{
for(int x = 0; x < 8; x++)
{
char label[8];
sprintf(label, "%s%d", regtypes[y], x);
printRegPair(outs, label,
thread->readIntReg(y*8+x),
shared_data->intregs[y*8+x]);
/*outs << regtypes[y] << x << " " ;
outs << "0x" << hex << setw(16)
<< thread->readIntReg(y*8+x);
if (thread->readIntReg(y*8 + x)
!= shared_data->intregs[y*8+x])
outs << " X ";
else
outs << " | ";
outs << "0x" << setw(16) << hex
<< shared_data->intregs[y*8+x]
<< endl;*/
}
}
printColumnLabels(outs);
char label[8];
for (int x = 0; x < 64; x++) {
if (shared_data->itb[x] != ULL(0xFFFFFFFFFFFFFFFF) ||
thread->getITBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF)) {
sprintf(label, "I-TLB:%02d", x);
printRegPair(outs, label, thread->getITBPtr()->TteRead(x), shared_data->itb[x]);
}
}
for (int x = 0; x < 64; x++) {
if (shared_data->dtb[x] != ULL(0xFFFFFFFFFFFFFFFF) ||
thread->getDTBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF)) {
sprintf(label, "D-TLB:%02d", x);
printRegPair(outs, label, thread->getDTBPtr()->TteRead(x), shared_data->dtb[x]);
}
}
thread->getITBPtr()->dumpAll();
thread->getDTBPtr()->dumpAll();
diffcount++;
if (diffcount > 2)
fatal("Differences found between Legion and M5\n");
} else
diffcount = 0;
compared = true;
shared_data->flags = OWN_LEGION;
}
} // while
} // if not microop
}
#endif
}
vector<bool> Trace::InstRecord::flags(NUM_BITS);
string Trace::InstRecord::trace_system;
////////////////////////////////////////////////////////////////////////
//
// Parameter space for per-cycle execution address tracing options.
// Derive from ParamContext so we can override checkParams() function.
//
class ExecutionTraceParamContext : public ParamContext
{
public:
ExecutionTraceParamContext(const string &_iniSection)
: ParamContext(_iniSection)
{
}
void checkParams(); // defined at bottom of file
};
ExecutionTraceParamContext exeTraceParams("exetrace");
Param<bool> exe_trace_spec(&exeTraceParams, "speculative",
"capture speculative instructions", true);
Param<bool> exe_trace_print_cycle(&exeTraceParams, "print_cycle",
"print cycle number", true);
Param<bool> exe_trace_print_opclass(&exeTraceParams, "print_opclass",
"print op class", true);
Param<bool> exe_trace_print_thread(&exeTraceParams, "print_thread",
"print thread number", true);
Param<bool> exe_trace_print_effaddr(&exeTraceParams, "print_effaddr",
"print effective address", true);
Param<bool> exe_trace_print_data(&exeTraceParams, "print_data",
"print result data", true);
Param<bool> exe_trace_print_iregs(&exeTraceParams, "print_iregs",
"print all integer regs", false);
Param<bool> exe_trace_print_fetchseq(&exeTraceParams, "print_fetchseq",
"print fetch sequence number", false);
Param<bool> exe_trace_print_cp_seq(&exeTraceParams, "print_cpseq",
"print correct-path sequence number", false);
Param<bool> exe_trace_print_reg_delta(&exeTraceParams, "print_reg_delta",
"print which registers changed to what", false);
Param<bool> exe_trace_pc_symbol(&exeTraceParams, "pc_symbol",
"Use symbols for the PC if available", true);
Param<bool> exe_trace_intel_format(&exeTraceParams, "intel_format",
"print trace in intel compatible format", false);
Param<bool> exe_trace_legion_lockstep(&exeTraceParams, "legion_lockstep",
"Compare sim state to legion state every cycle",
false);
Param<string> exe_trace_system(&exeTraceParams, "trace_system",
"print trace of which system (client or server)",
"client");
//
// Helper function for ExecutionTraceParamContext::checkParams() just
// to get us into the InstRecord namespace
//
void
Trace::InstRecord::setParams()
{
flags[TRACE_MISSPEC] = exe_trace_spec;
flags[PRINT_CYCLE] = exe_trace_print_cycle;
flags[PRINT_OP_CLASS] = exe_trace_print_opclass;
flags[PRINT_THREAD_NUM] = exe_trace_print_thread;
flags[PRINT_RESULT_DATA] = exe_trace_print_effaddr;
flags[PRINT_EFF_ADDR] = exe_trace_print_data;
flags[PRINT_INT_REGS] = exe_trace_print_iregs;
flags[PRINT_FETCH_SEQ] = exe_trace_print_fetchseq;
flags[PRINT_CP_SEQ] = exe_trace_print_cp_seq;
flags[PRINT_REG_DELTA] = exe_trace_print_reg_delta;
flags[PC_SYMBOL] = exe_trace_pc_symbol;
flags[INTEL_FORMAT] = exe_trace_intel_format;
flags[LEGION_LOCKSTEP] = exe_trace_legion_lockstep;
trace_system = exe_trace_system;
// If were going to be in lockstep with Legion
// Setup shared memory, and get otherwise ready
if (flags[LEGION_LOCKSTEP]) {
int shmfd = shmget('M' << 24 | getuid(), sizeof(SharedData), 0777);
if (shmfd < 0)
fatal("Couldn't get shared memory fd. Is Legion running?");
shared_data = (SharedData*)shmat(shmfd, NULL, SHM_RND);
if (shared_data == (SharedData*)-1)
fatal("Couldn't allocate shared memory");
if (shared_data->flags != OWN_M5)
fatal("Shared memory has invalid owner");
if (shared_data->version != VERSION)
fatal("Shared Data is wrong version! M5: %d Legion: %d", VERSION,
shared_data->version);
// step legion forward one cycle so we can get register values
shared_data->flags = OWN_LEGION;
}
}
void
ExecutionTraceParamContext::checkParams()
{
Trace::InstRecord::setParams();
}