gem5/kern/tru64/tru64_events.cc

156 lines
4.7 KiB
C++
Raw Normal View History

/*
* Copyright (c) 2003 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/exec_context.hh"
#include "cpu/base_cpu.hh"
#include "cpu/full_cpu/bpred.hh"
#include "cpu/full_cpu/full_cpu.hh"
#include "kern/tru64/dump_mbuf.hh"
#include "kern/tru64/printf.hh"
#include "kern/tru64/tru64_events.hh"
#include "mem/functional_mem/memory_control.hh"
#include "targetarch/arguments.hh"
Add the ability to track stats in user defined sets of function calls. code can be generated via the base/instrum_codegen.pl script to easily change the functions being tracked. the only thing the user needs to do is add code in tru64System to change how the callerMap is populated. command line: m5.* <config file> <args> --server.system:bin=true to track function calls in the server m5.* <config file> <args> --client.system:bin=true to track function calls in the client base/statistics.cc: make an adjustment to the way stats are printed for FS_MEASURE base/statistics.hh: add a name() virtual function to GenBin. add a debug printf for activate(). add amake MainBin the default bin when FS_MEASURE. cpu/exec_context.cc: initialize swCtx to null upon creation of an xc cpu/exec_context.hh: add a SWContext pointer to every execution context. cpu/simple_cpu/simple_cpu.cc: process calls and returns for FS_MEASURE cpu/simple_cpu/simple_cpu.hh: add this so idleCycles will not be accessed before all stats are constructed kern/tru64/tru64_events.cc: add a FnEvent that fires whenever a function we're tracking is called. implement the process() virtual function for it. kern/tru64/tru64_events.hh: add FnEvent kern/tru64/tru64_system.cc: send bin parameter to System constructor. add bin parameter to Tru64System object. initialize all the FnEvent and MainBin members of Tru64system. also, populate the calling map that indicates whether a function call is on the path we're tracking. kern/tru64/tru64_system.hh: modify the Tru64System class to support FS_MEASURE sim/system.cc: add a bin parameter to System class. initialize a MainBin to hold the stats for nonPath. sim/system.hh: add a map of to match bins to function names. add a swCtx map to map pcb addresses to SWContext *s. Add some supporting functions. --HG-- extra : convert_revision : af3eadd798cb2d2aed9b54e1059dcedf244dd526
2003-11-04 21:15:12 +01:00
#ifdef FS_MEASURE
#include "sim/system.hh"
#include "sim/sw_context.hh"
#endif
void
SkipFuncEvent::process(ExecContext *xc)
{
Addr newpc = xc->regs.intRegFile[ReturnAddressReg];
DPRINTF(PCEvent, "skipping %s: pc=%x, newpc=%x\n", description,
xc->regs.pc, newpc);
xc->regs.pc = newpc;
xc->regs.npc = xc->regs.pc + sizeof(MachInst);
BranchPred *bp = xc->cpu->getBranchPred();
if (bp != NULL) {
bp->popRAS(xc->thread_num);
}
}
void
BadAddrEvent::process(ExecContext *xc)
{
// The following gross hack is the equivalent function to the
// annotation for vmunix::badaddr in:
// simos/simulation/apps/tcl/osf/tlaser.tcl
uint64_t a0 = xc->regs.intRegFile[ArgumentReg0];
if (a0 < ALPHA_K0SEG_BASE || a0 >= ALPHA_K1SEG_BASE ||
xc->memCtrl->badaddr(ALPHA_K0SEG_TO_PHYS(a0) & PA_IMPL_MASK)) {
DPRINTF(BADADDR, "badaddr arg=%#x bad\n", a0);
xc->regs.intRegFile[ReturnValueReg] = 0x1;
SkipFuncEvent::process(xc);
}
else
DPRINTF(BADADDR, "badaddr arg=%#x good\n", a0);
}
void
PrintfEvent::process(ExecContext *xc)
{
if (DTRACE(Printf)) {
DebugOut() << curTick << ": " << xc->cpu->name() << ": ";
AlphaArguments args(xc);
tru64::Printf(args);
}
}
void
DebugPrintfEvent::process(ExecContext *xc)
{
if (DTRACE(DebugPrintf)) {
if (!raw)
DebugOut() << curTick << ": " << xc->cpu->name() << ": ";
AlphaArguments args(xc);
tru64::Printf(args);
}
}
void
DumpMbufEvent::process(ExecContext *xc)
{
if (DTRACE(DebugPrintf)) {
AlphaArguments args(xc);
tru64::DumpMbuf(args);
}
}
Add the ability to track stats in user defined sets of function calls. code can be generated via the base/instrum_codegen.pl script to easily change the functions being tracked. the only thing the user needs to do is add code in tru64System to change how the callerMap is populated. command line: m5.* <config file> <args> --server.system:bin=true to track function calls in the server m5.* <config file> <args> --client.system:bin=true to track function calls in the client base/statistics.cc: make an adjustment to the way stats are printed for FS_MEASURE base/statistics.hh: add a name() virtual function to GenBin. add a debug printf for activate(). add amake MainBin the default bin when FS_MEASURE. cpu/exec_context.cc: initialize swCtx to null upon creation of an xc cpu/exec_context.hh: add a SWContext pointer to every execution context. cpu/simple_cpu/simple_cpu.cc: process calls and returns for FS_MEASURE cpu/simple_cpu/simple_cpu.hh: add this so idleCycles will not be accessed before all stats are constructed kern/tru64/tru64_events.cc: add a FnEvent that fires whenever a function we're tracking is called. implement the process() virtual function for it. kern/tru64/tru64_events.hh: add FnEvent kern/tru64/tru64_system.cc: send bin parameter to System constructor. add bin parameter to Tru64System object. initialize all the FnEvent and MainBin members of Tru64system. also, populate the calling map that indicates whether a function call is on the path we're tracking. kern/tru64/tru64_system.hh: modify the Tru64System class to support FS_MEASURE sim/system.cc: add a bin parameter to System class. initialize a MainBin to hold the stats for nonPath. sim/system.hh: add a map of to match bins to function names. add a swCtx map to map pcb addresses to SWContext *s. Add some supporting functions. --HG-- extra : convert_revision : af3eadd798cb2d2aed9b54e1059dcedf244dd526
2003-11-04 21:15:12 +01:00
#ifdef FS_MEASURE
FnEvent::FnEvent(PCEventQueue *q, const std::string & desc, System *system)
: PCEvent(q, desc), _name(desc)
{
myBin = system->getBin(desc);
assert(myBin);
}
void
FnEvent::process(ExecContext *xc)
{
if (xc->misspeculating())
return;
assert(xc->system->bin && "FnEvent must be in a binned system");
SWContext *ctx = xc->swCtx;
DPRINTF(TCPIP, "%s: %s Event!!!\n", xc->system->name(), description);
if (ctx && !ctx->callStack.empty()) {
fnCall *last = ctx->callStack.top();
if (!xc->system->findCaller(myname(), last->name)) {
return;
}
ctx->calls--;
} else {
if (!xc->system->findCaller(myname(), "")) {
return;
}
if (!ctx) {
DPRINTF(TCPIP, "creating new context for %s\n", myname());
ctx = new SWContext;
xc->swCtx = ctx;
}
}
DPRINTF(TCPIP, "adding fn %s to context\n", myname());
fnCall *call = new fnCall;
call->myBin = myBin;
call->name = myname();
ctx->callStack.push(call);
myBin->activate();
xc->system->fnCalls++;
xc->system->dumpState(xc);
}
#endif //FS_MEASURE