- Clean up and factor out all of the binning code into a

single place so it's easier to work with.
-  Add support for binning kernel/user/idle time separately from
lisa's binning stuff, but make the two compatible.
-  KernelStats used to directly implement the pImpl idiom, but
it makes more sense to just remove the level of indirection and
make the exec context have a pointer to the stats.
-  Factor common code out of LinuxSystem and Tru64System and put
it into the System base class.  While doing that, make all
constructors take a pointer to a parameter struct instead of
naming the parameters individually to make it much easier to add
parameters to these classes.

SConscript:
    Move the function tracking and binning stuff around.
arch/alpha/ev5.cc:
    kernelStats is now a pointer
arch/alpha/pseudo_inst.cc:
    kernelStats is now a pointer
    the parameters to the system have been moved into their own
    struct
base/trace.hh:
    provide a little functor class for wrapping a string that
    can allow you to define name() in any scope very simply
    for use with DPRINTF
cpu/base_cpu.cc:
    New order of arguments for consistency.
cpu/exec_context.cc:
    kernelStats no longer has the level of indirection in it,
    execContext has the indirection now.  so, kernelStats is a pointer.
    We also need a pointer to the kernelBinning stuff from the system
    and we need to figure out if we want to do binning or not.
    Move a whole bunch of code into kern_binning.cc so it's all
    in the same place.
cpu/exec_context.hh:
    We want pointers to the kernel binning/stats stuff and we'll
    have the exec_context and system have the level of indirection
    instead of having the extra layer in the kernel stats class.
cpu/simple_cpu/simple_cpu.cc:
    call through the exec context to do the special binning
    stuff.
kern/kernel_stats.cc:
kern/kernel_stats.hh:
    Re-organize the stats stuff and remove the level of indirection
    (that was there to simplify building) and move the binning stuff
    into its own class/file.
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
kern/tru64/tru64_system.cc:
kern/tru64/tru64_system.hh:
sim/system.cc:
sim/system.hh:
    move lots of common system code into the base system class so
    that it can be shared between linux, tru64, and whatever else
    we decide to support in the future.

    Make the constructor take a pointer to a parameter struct so that
    it is easier to pass parameters to the parent.
kern/system_events.cc:
    move the majority of the binning code into the Kernel::Binning class
    in the kern_binning file
kern/system_events.hh:
    FnEvents only need to know the bin
    create the Idle start event to find the PCBB of the idle
    process when it starts.
kern/tru64/tru64_events.cc:
    memCtrl -> memctrl
sim/process.cc:
sim/process.hh:
    re-order args for consistency

--HG--
extra : convert_revision : 86cb39738c41fcd680f2aad125c9dde000227b2b

1 files changed, 153 insertions, 179 deletions

diff --git a/sim/system.cc b/sim/system.cc
index b5a0e7a56..2d91e187b 100644
--- a/sim/system.cc
+++ b/sim/system.cc
@@ -26,7 +26,13 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "base/loader/object_file.hh"
+#include "base/loader/symtab.hh"
+#include "base/remote_gdb.hh"
 #include "cpu/exec_context.hh"
+#include "kern/kernel_stats.hh"
+#include "mem/functional_mem/memory_control.hh"
+#include "mem/functional_mem/physical_memory.hh"
 #include "targetarch/vtophys.hh"
 #include "sim/param.hh"
 #include "sim/system.hh"
@@ -38,82 +44,160 @@ vector<System *> System::systemList;
 
 int System::numSystemsRunning = 0;
 
-System::System(const std::string _name,
-               const uint64_t _init_param,
-               MemoryController *_memCtrl,
-               PhysicalMemory *_physmem,
-               const bool _bin,
-               const std::vector<string> &binned_fns)
-
-    : SimObject(_name),
-      init_param(_init_param),
-      memCtrl(_memCtrl),
-      physmem(_physmem),
-      bin(_bin),
-      binned_fns(binned_fns)
-{
-    // increment the number of running systems
-    numSystemsRunning++;
+extern SymbolTable *debugSymbolTable;
 
+System::System(Params *p)
+    : SimObject(p->name), memctrl(p->memctrl), physmem(p->physmem),
+      init_param(p->init_param), params(p)
+{
     // add self to global system list
     systemList.push_back(this);
-    if (bin == true) {
-        Kernel = new Stats::MainBin("non TCPIP Kernel stats");
-        Kernel->activate();
-        User = new Stats::MainBin("User stats");
-
-        int end = binned_fns.size();
-        assert(!(end & 1));
 
-        Stats::MainBin *Bin;
-
-        fnEvents.resize(end>>1);
+    kernelSymtab = new SymbolTable;
+    consoleSymtab = new SymbolTable;
+    debugSymbolTable = kernelSymtab;
+
+    /**
+     * Load the kernel, pal, and console code into memory
+     */
+    // Load kernel code
+    kernel = createObjectFile(params->kernel_path);
+    if (kernel == NULL)
+        fatal("Could not load kernel file %s", params->kernel_path);
+
+    // Load Console Code
+    console = createObjectFile(params->console_path);
+    if (console == NULL)
+        fatal("Could not load console file %s", params->console_path);
+
+    // Load pal file
+    pal = createObjectFile(params->palcode);
+    if (pal == NULL)
+        fatal("Could not load PALcode file %s", params->palcode);
+
+
+    // Load program sections into memory
+    pal->loadSections(physmem, true);
+    console->loadSections(physmem, true);
+    kernel->loadSections(physmem, true);
+
+    // setup entry points
+    kernelStart = kernel->textBase();
+    kernelEnd = kernel->bssBase() + kernel->bssSize();
+    kernelEntry = kernel->entryPoint();
+
+    // load symbols
+    if (!kernel->loadGlobalSymbols(kernelSymtab))
+        panic("could not load kernel symbols\n");
+        debugSymbolTable = kernelSymtab;
+
+    if (!kernel->loadLocalSymbols(kernelSymtab))
+        panic("could not load kernel local symbols\n");
+
+    if (!console->loadGlobalSymbols(consoleSymtab))
+        panic("could not load console symbols\n");
+
+    DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
+    DPRINTF(Loader, "Kernel end   = %#x\n", kernelEnd);
+    DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
+    DPRINTF(Loader, "Kernel loaded...\n");
+
+    Addr addr = 0;
+#ifdef DEBUG
+    consolePanicEvent = new BreakPCEvent(&pcEventQueue, "console panic");
+    if (consoleSymtab->findAddress("panic", addr))
+        consolePanicEvent->schedule(addr);
+#endif
+
+    /**
+     * Copy the osflags (kernel arguments) into the consoles
+     * memory. (Presently Linux does not use the console service
+     * routine to get these command line arguments, but Tru64 and
+     * others do.)
+     */
+    if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+        char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
+
+        if (osflags)
+              strcpy(osflags, params->boot_osflags.c_str());
+    }
 
-        for (int i = 0; i < end; i +=2) {
-            Bin = new Stats::MainBin(binned_fns[i]);
-            fnBins.insert(make_pair(binned_fns[i], Bin));
+    /**
+     * Set the hardware reset parameter block system type and revision
+     * information to Tsunami.
+     */
+    if (consoleSymtab->findAddress("xxm_rpb", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+        char *hwrpb = (char *)physmem->dma_addr(paddr, sizeof(uint64_t));
 
-            fnEvents[(i>>1)] = new FnEvent(&pcEventQueue, binned_fns[i], this);
+        if (!hwrpb)
+            panic("could not translate hwrpb addr\n");
 
-            if (binned_fns[i+1] == "null")
-                populateMap(binned_fns[i], "");
-            else
-                populateMap(binned_fns[i], binned_fns[i+1]);
-        }
+        *(uint64_t*)(hwrpb+0x50) = params->system_type;
+        *(uint64_t*)(hwrpb+0x58) = params->system_rev;
+    } else
+        panic("could not find hwrpb\n");
 
-        fnCalls
-            .name(name() + ":fnCalls")
-            .desc("all fn calls being tracked")
-            ;
+    // increment the number of running systms
+    numSystemsRunning++;
 
-    } else
-        Kernel = NULL;
+    kernelBinning = new Kernel::Binning(this);
 }
 
-
 System::~System()
 {
-    if (bin == true) {
-        int end = fnEvents.size();
-        for (int i = 0; i < end; ++i) {
-            delete fnEvents[i];
-        }
-        fnEvents.clear();
-    }
+    delete kernelSymtab;
+    delete consoleSymtab;
+    delete kernel;
+    delete console;
+    delete pal;
+
+    delete kernelBinning;
+
+#ifdef DEBUG
+    delete consolePanicEvent;
+#endif
 }
 
+bool
+System::breakpoint()
+{
+    return remoteGDB[0]->trap(ALPHA_KENTRY_INT);
+}
 
 int
 System::registerExecContext(ExecContext *xc)
 {
-    int myIndex = execContexts.size();
+    int xcIndex = execContexts.size();
     execContexts.push_back(xc);
-    return myIndex;
-}
 
+    if (xcIndex == 0) {
+        // activate with zero delay so that we start ticking right
+        // away on cycle 0
+        xc->activate(0);
+    }
+
+    RemoteGDB *rgdb = new RemoteGDB(this, xc);
+    GDBListener *gdbl = new GDBListener(rgdb, 7000 + xcIndex);
+    gdbl->listen();
+    /**
+     * Uncommenting this line waits for a remote debugger to connect
+     * to the simulator before continuing.
+     */
+    //gdbl->accept();
+
+    if (remoteGDB.size() <= xcIndex) {
+        remoteGDB.resize(xcIndex+1);
+    }
+
+    remoteGDB[xcIndex] = rgdb;
+
+    return xcIndex;
+}
 
 void
-System::replaceExecContext(int xcIndex, ExecContext *xc)
+System::replaceExecContext(ExecContext *xc, int xcIndex)
 {
     if (xcIndex >= execContexts.size()) {
         panic("replaceExecContext: bad xcIndex, %d >= %d\n",
@@ -121,154 +205,44 @@ System::replaceExecContext(int xcIndex, ExecContext *xc)
     }
 
     execContexts[xcIndex] = xc;
+    remoteGDB[xcIndex]->replaceExecContext(xc);
 }
 
-
-void
-System::printSystems()
-{
-    vector<System *>::iterator i = systemList.begin();
-    vector<System *>::iterator end = systemList.end();
-    for (; i != end; ++i) {
-        System *sys = *i;
-        cerr << "System " << sys->name() << ": " << hex << sys << endl;
-    }
-}
-
-extern "C"
 void
-printSystems()
+System::regStats()
 {
-    System::printSystems();
+    kernelBinning->regStats(name() + ".kern");
 }
 
 void
-System::populateMap(std::string callee, std::string caller)
+System::serialize(ostream &os)
 {
-    multimap<const string, string>::const_iterator i;
-    i = callerMap.insert(make_pair(callee, caller));
-    assert(i != callerMap.end() && "should not fail populating callerMap");
+    kernelBinning->serialize(os);
 }
 
-bool
-System::findCaller(std::string callee, std::string caller) const
-{
-    typedef multimap<const std::string, std::string>::const_iterator iter;
-    pair<iter, iter> range;
-
-    range = callerMap.equal_range(callee);
-    for (iter i = range.first; i != range.second; ++i) {
-        if ((*i).second == caller)
-            return true;
-    }
-    return false;
-}
 
 void
-System::dumpState(ExecContext *xc) const
-{
-    if (xc->swCtx) {
-        stack<fnCall *> copy(xc->swCtx->callStack);
-        if (copy.empty())
-            return;
-        DPRINTF(TCPIP, "xc->swCtx, size: %d:\n", copy.size());
-        fnCall *top;
-        DPRINTF(TCPIP, "||     call : %d\n",xc->swCtx->calls);
-        for (top = copy.top(); !copy.empty(); copy.pop() ) {
-            top = copy.top();
-            DPRINTF(TCPIP, "||  %13s : %s \n", top->name, top->myBin->name());
-        }
-    }
-}
-
-Stats::MainBin *
-System::getBin(const std::string &name)
-{
-    std::map<const std::string, Stats::MainBin *>::const_iterator i;
-    i = fnBins.find(name);
-    if (i == fnBins.end())
-        panic("trying to getBin %s that is not on system map!", name);
-    return (*i).second;
-}
-
-SWContext *
-System::findContext(Addr pcb)
+System::unserialize(Checkpoint *cp, const string &section)
 {
-  std::map<Addr, SWContext *>::const_iterator iter;
-  iter = swCtxMap.find(pcb);
-  if (iter != swCtxMap.end()) {
-      SWContext *ctx = (*iter).second;
-      assert(ctx != NULL && "should never have a null ctx in ctxMap");
-      return ctx;
-  } else
-      return NULL;
+    kernelBinning->unserialize(cp, section);
 }
 
 void
-System::serialize(std::ostream &os)
+System::printSystems()
 {
-    if (bin == true) {
-        map<const Addr, SWContext *>::const_iterator iter, end;
-        iter = swCtxMap.begin();
-        end = swCtxMap.end();
-
-        int numCtxs = swCtxMap.size();
-        SERIALIZE_SCALAR(numCtxs);
-        SWContext *ctx;
-        for (int i = 0; iter != end; ++i, ++iter) {
-            paramOut(os, csprintf("Addr[%d]",i), (*iter).first);
-            ctx = (*iter).second;
-            paramOut(os, csprintf("calls[%d]",i), ctx->calls);
-
-            stack<fnCall *> *stack = &(ctx->callStack);
-            fnCall *top;
-            int size = stack->size();
-            paramOut(os, csprintf("stacksize[%d]",i), size);
-            for (int j=0; j<size; ++j) {
-                top = stack->top();
-                paramOut(os, csprintf("ctx[%d].stackpos[%d]",i,j),
-                         top->name);
-                delete top;
-                stack->pop();
-            }
-        }
+    vector<System *>::iterator i = systemList.begin();
+    vector<System *>::iterator end = systemList.end();
+    for (; i != end; ++i) {
+        System *sys = *i;
+        cerr << "System " << sys->name() << ": " << hex << sys << endl;
     }
 }
 
+extern "C"
 void
-System::unserialize(Checkpoint *cp, const std::string &section)
+printSystems()
 {
-    if (bin == true) {
-        int numCtxs;
-        UNSERIALIZE_SCALAR(numCtxs);
-
-        SWContext *ctx;
-        Addr addr;
-        int size;
-        for(int i = 0; i < numCtxs; ++i) {
-            ctx = new SWContext;
-            paramIn(cp, section, csprintf("Addr[%d]",i), addr);
-            paramIn(cp, section, csprintf("calls[%d]",i), ctx->calls);
-
-            paramIn(cp, section, csprintf("stacksize[%d]",i), size);
-
-            vector<fnCall *> calls;
-            fnCall *call;
-            for (int j = 0; j < size; ++j) {
-                call = new fnCall;
-                paramIn(cp, section, csprintf("ctx[%d].stackpos[%d]",i,j),
-                        call->name);
-                call->myBin = getBin(call->name);
-                calls.push_back(call);
-            }
-
-            for (int j=size-1; j>=0; --j) {
-                ctx->callStack.push(calls[j]);
-            }
-
-            addContext(addr, ctx);
-        }
-    }
+    System::printSystems();
 }
 
 DEFINE_SIM_OBJECT_CLASS_NAME("System", System)