cpu: remove legion tracer

If someone wants to debug with legion again they can restore the
code from the repository, but no need to have it hang around indefinately.

1 files changed, 0 insertions, 590 deletions

diff --git a/src/cpu/legiontrace.cc b/src/cpu/legiontrace.cc
deleted file mode 100644
index b94b8f5fe..000000000
--- a/src/cpu/legiontrace.cc
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * 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 "config/the_isa.hh"
-#if THE_ISA != SPARC_ISA
-    #error Legion tracing only works with SPARC simulations!
-#endif
-
-#include <sys/ipc.h>
-#include <sys/shm.h>
-
-#include <cstdio>
-#include <iomanip>
-
-#include "arch/sparc/decoder.hh"
-#include "arch/sparc/registers.hh"
-#include "arch/sparc/utility.hh"
-#include "arch/tlb.hh"
-#include "base/socket.hh"
-#include "cpu/base.hh"
-#include "cpu/legiontrace.hh"
-#include "cpu/static_inst.hh"
-#include "cpu/thread_context.hh"
-#include "sim/full_system.hh"
-#include "sim/system.hh"
-
-//XXX This is temporary
-#include "cpu/m5legion_interface.h"
-
-using namespace std;
-using namespace TheISA;
-
-static int diffcount = 0;
-static bool wasMicro = false;
-
-namespace Trace {
-SharedData *shared_data = NULL;
-
-void
-setupSharedData()
-{
-    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;
-}
-
-////////////////////////////////////////////////////////////////////////
-//
-//  Utility methods for pretty printing a report about a difference
-//
-
-inline char * genCenteredLabel(int length, char * buffer, const 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, const 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");
-}
-
-void
-Trace::LegionTraceRecord::dump()
-{
-    ostream &outs = Trace::output();
-
-    // Compare
-    bool compared = false;
-    bool diffPC   = false;
-    bool diffCC   = false;
-    bool diffInst = false;
-    bool diffIntRegs = false;
-    bool diffFpRegs = false;
-    bool diffTpc = false;
-    bool diffTnpc = false;
-    bool diffTstate = false;
-    bool diffTt = false;
-    bool diffTba M5_VAR_USED = false;
-    bool diffHpstate = false;
-    bool diffHtstate = false;
-    bool diffHtba = false;
-    bool diffPstate = false;
-    bool diffY = false;
-    bool diffFsr = 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 (!shared_data)
-        setupSharedData();
-
-    // We took a trap on a micro-op...
-    if (wasMicro && !staticInst->isMicroop())
-    {
-        // let's skip comparing this tick
-        while (!compared)
-            if (shared_data->flags == OWN_M5) {
-                shared_data->flags = OWN_LEGION;
-                compared = true;
-            }
-        compared = false;
-        wasMicro = false;
-    }
-
-    if (staticInst->isLastMicroop())
-        wasMicro = false;
-    else if (staticInst->isMicroop())
-        wasMicro = true;
-
-
-    if(!staticInst->isMicroop() || staticInst->isLastMicroop()) {
-        while (!compared) {
-            if (shared_data->flags == OWN_M5) {
-                m5Pc = pc.instAddr() & SparcISA::PAddrImplMask;
-                if (bits(shared_data->pstate,3,3)) {
-                    m5Pc &= mask(32);
-                }
-                lgnPc = shared_data->pc & SparcISA::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;
-                }
-                // assume we have %g0 working correctly
-                for (int i = 1; i < TheISA::NumIntArchRegs; i++) {
-                    if (thread->readIntReg(i) != shared_data->intregs[i]) {
-                        diffIntRegs = true;
-                    }
-                }
-                for (int i = 0; i < TheISA::NumFloatRegs/2; i++) {
-                    if (thread->readFloatRegBits(i*2) !=
-                            shared_data->fpregs[i]) {
-                        diffFpRegs = true;
-                    }
-                }
-                        uint64_t oldTl =
-                            thread->readMiscRegNoEffect(MISCREG_TL);
-                if (oldTl != shared_data->tl)
-                    diffTl = true;
-                for (int i = 1; i <= MaxTL; i++) {
-                    thread->setMiscRegNoEffect(MISCREG_TL, i);
-                    if (thread->readMiscRegNoEffect(MISCREG_TPC) !=
-                            shared_data->tpc[i-1])
-                        diffTpc = true;
-                    if (thread->readMiscRegNoEffect(MISCREG_TNPC) !=
-                            shared_data->tnpc[i-1])
-                        diffTnpc = true;
-                    if (thread->readMiscRegNoEffect(MISCREG_TSTATE) !=
-                            shared_data->tstate[i-1])
-                        diffTstate = true;
-                    if (thread->readMiscRegNoEffect(MISCREG_TT) !=
-                            shared_data->tt[i-1])
-                        diffTt = true;
-                    if (thread->readMiscRegNoEffect(MISCREG_HTSTATE) !=
-                            shared_data->htstate[i-1])
-                        diffHtstate = true;
-                }
-                thread->setMiscRegNoEffect(MISCREG_TL, oldTl);
-
-                if(shared_data->tba != thread->readMiscRegNoEffect(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->readMiscRegNoEffect(MISCREG_HPSTATE))
-                    diffHpstate = true;
-                if(shared_data->htba !=
-                        thread->readMiscRegNoEffect(MISCREG_HTBA))
-                    diffHtba = true;
-                if(shared_data->pstate !=
-                        thread->readMiscRegNoEffect(MISCREG_PSTATE))
-                    diffPstate = true;
-                //if(shared_data->y !=
-                //        thread->readMiscRegNoEffect(MISCREG_Y))
-                if(shared_data->y !=
-                        thread->readIntReg(NumIntArchRegs + 1))
-                    diffY = true;
-                if(shared_data->fsr !=
-                        thread->readMiscRegNoEffect(MISCREG_FSR)) {
-                    diffFsr = true;
-                    if (mbits(shared_data->fsr, 63,10) ==
-                            mbits(thread->readMiscRegNoEffect(MISCREG_FSR),
-                                63,10)) {
-                        thread->setMiscRegNoEffect(MISCREG_FSR,
-                                shared_data->fsr);
-                        diffFsr = false;
-                    }
-                }
-                //if(shared_data->ccr !=
-                //        thread->readMiscRegNoEffect(MISCREG_CCR))
-                if(shared_data->ccr !=
-                        thread->readIntReg(NumIntArchRegs + 2))
-                    diffCcr = true;
-                if(shared_data->gl !=
-                        thread->readMiscRegNoEffect(MISCREG_GL))
-                    diffGl = true;
-                if(shared_data->asi !=
-                        thread->readMiscRegNoEffect(MISCREG_ASI))
-                    diffAsi = true;
-                if(shared_data->pil !=
-                        thread->readMiscRegNoEffect(MISCREG_PIL))
-                    diffPil = true;
-                if(shared_data->cwp !=
-                        thread->readMiscRegNoEffect(MISCREG_CWP))
-                    diffCwp = true;
-                //if(shared_data->cansave !=
-                //        thread->readMiscRegNoEffect(MISCREG_CANSAVE))
-                if(shared_data->cansave !=
-                        thread->readIntReg(NumIntArchRegs + 3))
-                    diffCansave = true;
-                //if(shared_data->canrestore !=
-                //        thread->readMiscRegNoEffect(MISCREG_CANRESTORE))
-                if(shared_data->canrestore !=
-                        thread->readIntReg(NumIntArchRegs + 4))
-                    diffCanrestore = true;
-                //if(shared_data->otherwin !=
-                //        thread->readMiscRegNoEffect(MISCREG_OTHERWIN))
-                if(shared_data->otherwin !=
-                        thread->readIntReg(NumIntArchRegs + 6))
-                    diffOtherwin = true;
-                //if(shared_data->cleanwin !=
-                //        thread->readMiscRegNoEffect(MISCREG_CLEANWIN))
-                if(shared_data->cleanwin !=
-                        thread->readIntReg(NumIntArchRegs + 5))
-                    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 ||
-                    diffIntRegs || diffFpRegs ||
-                    diffTpc || diffTnpc || diffTstate || diffTt ||
-                    diffHpstate || diffHtstate || diffHtba ||
-                    diffPstate || diffY || diffCcr || diffTl || diffFsr ||
-                    diffGl || diffAsi || diffPil || diffCwp ||
-                    diffCansave || diffCanrestore ||
-                    diffOtherwin || diffCleanwin || diffTlb) {
-
-                    outs << "Differences found between M5 and Legion:";
-                    if (diffPC)
-                        outs << " [PC]";
-                    if (diffCC)
-                        outs << " [CC]";
-                    if (diffInst)
-                        outs << " [Instruction]";
-                    if (diffIntRegs)
-                        outs << " [IntRegs]";
-                    if (diffFpRegs)
-                        outs << " [FpRegs]";
-                    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 (diffFsr)
-                        outs << " [FSR]";
-                    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;
-
-                    TheISA::Decoder *decoder = thread->getDecoderPtr();
-                    decoder->moreBytes(m5Pc, m5Pc, shared_data->instruction);
-
-                    assert(decoder->instReady());
-
-                    PCState tempPC = pc;
-                    StaticInstPtr legionInst = decoder->decode(tempPC);
-                    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->readMiscRegNoEffect(MISCREG_HPSTATE),
-                            shared_data->hpstate | (1 << 11));
-                    printRegPair(outs, "Htba",
-                            thread->readMiscRegNoEffect(MISCREG_HTBA),
-                            shared_data->htba);
-                    printRegPair(outs, "Pstate",
-                            thread->readMiscRegNoEffect(MISCREG_PSTATE),
-                            shared_data->pstate);
-                    printRegPair(outs, "Y",
-                            //thread->readMiscRegNoEffect(MISCREG_Y),
-                            thread->readIntReg(NumIntArchRegs + 1),
-                            shared_data->y);
-                    printRegPair(outs, "FSR",
-                            thread->readMiscRegNoEffect(MISCREG_FSR),
-                            shared_data->fsr);
-                    printRegPair(outs, "Ccr",
-                            //thread->readMiscRegNoEffect(MISCREG_CCR),
-                            thread->readIntReg(NumIntArchRegs + 2),
-                            shared_data->ccr);
-                    printRegPair(outs, "Tl",
-                            thread->readMiscRegNoEffect(MISCREG_TL),
-                            shared_data->tl);
-                    printRegPair(outs, "Gl",
-                            thread->readMiscRegNoEffect(MISCREG_GL),
-                            shared_data->gl);
-                    printRegPair(outs, "Asi",
-                            thread->readMiscRegNoEffect(MISCREG_ASI),
-                            shared_data->asi);
-                    printRegPair(outs, "Pil",
-                            thread->readMiscRegNoEffect(MISCREG_PIL),
-                            shared_data->pil);
-                    printRegPair(outs, "Cwp",
-                            thread->readMiscRegNoEffect(MISCREG_CWP),
-                            shared_data->cwp);
-                    printRegPair(outs, "Cansave",
-                            //thread->readMiscRegNoEffect(MISCREG_CANSAVE),
-                            thread->readIntReg(NumIntArchRegs + 3),
-                            shared_data->cansave);
-                    printRegPair(outs, "Canrestore",
-                            //thread->readMiscRegNoEffect(MISCREG_CANRESTORE),
-                            thread->readIntReg(NumIntArchRegs + 4),
-                            shared_data->canrestore);
-                    printRegPair(outs, "Otherwin",
-                            //thread->readMiscRegNoEffect(MISCREG_OTHERWIN),
-                            thread->readIntReg(NumIntArchRegs + 6),
-                            shared_data->otherwin);
-                    printRegPair(outs, "Cleanwin",
-                            //thread->readMiscRegNoEffect(MISCREG_CLEANWIN),
-                            thread->readIntReg(NumIntArchRegs + 5),
-                            shared_data->cleanwin);
-                    outs << endl;
-                    for (int i = 1; i <= MaxTL; i++) {
-                        printLevelHeader(outs, i);
-                        printColumnLabels(outs);
-                        thread->setMiscRegNoEffect(MISCREG_TL, i);
-                        printRegPair(outs, "Tpc",
-                                thread->readMiscRegNoEffect(MISCREG_TPC),
-                                shared_data->tpc[i-1]);
-                        printRegPair(outs, "Tnpc",
-                                thread->readMiscRegNoEffect(MISCREG_TNPC),
-                                shared_data->tnpc[i-1]);
-                        printRegPair(outs, "Tstate",
-                                thread->readMiscRegNoEffect(MISCREG_TSTATE),
-                                shared_data->tstate[i-1]);
-                        printRegPair(outs, "Tt",
-                                thread->readMiscRegNoEffect(MISCREG_TT),
-                                shared_data->tt[i-1]);
-                        printRegPair(outs, "Htstate",
-                                thread->readMiscRegNoEffect(MISCREG_HTSTATE),
-                                shared_data->htstate[i-1]);
-                    }
-                    thread->setMiscRegNoEffect(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]);
-                        }
-                    }
-                    if (diffFpRegs) {
-                        for (int x = 0; x < 32; x++) {
-                            char label[8];
-                            sprintf(label, "%%f%d", x);
-                            printRegPair(outs, label,
-                                thread->readFloatRegBits(x*2),
-                                shared_data->fpregs[x]);
-                        }
-                    }
-                    if (diffTlb) {
-                        printColumnLabels(outs);
-                        char label[9];
-                        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 > 3)
-                        fatal("Differences found between Legion and M5\n");
-                } else
-                    diffcount = 0;
-
-                compared = true;
-                shared_data->flags = OWN_LEGION;
-            }
-        } // while
-    } // if not microop
-}
-
-} // namespace Trace
-
-////////////////////////////////////////////////////////////////////////
-//
-//  ExeTracer Simulation Object
-//
-Trace::LegionTrace *
-LegionTraceParams::create()
-{
-    if (!FullSystem)
-        panic("Legion tracing only works in full system!");
-    return new Trace::LegionTrace(this);
-};