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/*
* Copyright (c) 2017, 2019 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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.
*/
#include "cpu/exetrace.hh"
#include <iomanip>
#include <sstream>
#include "base/loader/symtab.hh"
#include "cpu/base.hh"
#include "cpu/static_inst.hh"
#include "cpu/thread_context.hh"
#include "debug/ExecAll.hh"
#include "debug/FmtTicksOff.hh"
#include "enums/OpClass.hh"
namespace gem5
{
namespace trace {
void
ExeTracerRecord::traceInst(const StaticInstPtr &inst, bool ran)
{
std::stringstream outs;
const bool in_user_mode = thread->getIsaPtr()->inUserMode();
if (in_user_mode && !debug::ExecUser)
return;
if (!in_user_mode && !debug::ExecKernel)
return;
if (debug::ExecAsid) {
outs << "A" << std::dec <<
thread->getIsaPtr()->getExecutingAsid() << " ";
}
if (debug::ExecThread)
outs << "T" << thread->threadId() << " : ";
Addr cur_pc = pc->instAddr();
loader::SymbolTable::const_iterator it;
ccprintf(outs, "%#x", cur_pc);
if (debug::ExecSymbol && (!FullSystem || !in_user_mode) &&
(it = loader::debugSymbolTable.findNearest(cur_pc)) !=
loader::debugSymbolTable.end()) {
Addr delta = cur_pc - it->address;
if (delta)
ccprintf(outs, " @%s+%d", it->name, delta);
else
ccprintf(outs, " @%s", it->name);
}
if (inst->isMicroop()) {
ccprintf(outs, ".%2d", pc->microPC());
} else {
ccprintf(outs, " ");
}
ccprintf(outs, " : ");
//
// Print decoded instruction
//
outs << std::setw(26) << std::left;
outs << inst->disassemble(cur_pc, &loader::debugSymbolTable);
if (ran) {
outs << " : ";
if (debug::ExecOpClass) {
outs << enums::OpClassStrings[inst->opClass()] << " : ";
}
if (debug::ExecResult && !predicate) {
outs << "Predicated False";
}
if (debug::ExecResult && dataStatus != DataInvalid) {
if (dataStatus == DataReg)
ccprintf(outs, " D=%s", data.asReg.asString());
else
ccprintf(outs, " D=%#018x", data.asInt);
}
if (debug::ExecEffAddr && getMemValid())
outs << " A=0x" << std::hex << addr;
if (debug::ExecFetchSeq && fetch_seq_valid)
outs << " FetchSeq=" << std::dec << fetch_seq;
if (debug::ExecCPSeq && cp_seq_valid)
outs << " CPSeq=" << std::dec << cp_seq;
if (debug::ExecFlags) {
outs << " flags=(";
inst->printFlags(outs, "|");
outs << ")";
}
}
//
// End of line...
//
outs << std::endl;
trace::getDebugLogger()->dprintf_flag(
when, thread->getCpuPtr()->name(), "ExecEnable", "%s",
outs.str().c_str());
}
void
ExeTracerRecord::dump()
{
/*
* The behavior this check tries to achieve is that if ExecMacro is on,
* the macroop will be printed. If it's on and microops are also on, it's
* printed before the microops start printing to give context. If the
* microops aren't printed, then it's printed only when the final microop
* finishes. Macroops then behave like regular instructions and don't
* complete/print when they fault.
*/
if (debug::ExecMacro && staticInst->isMicroop() &&
((debug::ExecMicro &&
macroStaticInst && staticInst->isFirstMicroop()) ||
(!debug::ExecMicro &&
macroStaticInst && staticInst->isLastMicroop()))) {
traceInst(macroStaticInst, false);
}
if (debug::ExecMicro || !staticInst->isMicroop()) {
traceInst(staticInst, true);
}
}
} // namespace trace
} // namespace gem5