Add functions to System object to set up function-based events,

including automatically fixing up addresses to deal with
optionally executed Alpha gp update prolog.

SConscript:
    Remove freebsd_events.cc and linux_events.cc.
base/remote_gdb.cc:
cpu/pc_event.cc:
kern/system_events.cc:
kern/system_events.hh:
    PCEvents now schedule themselves in constructor.
cpu/pc_event.hh:
    PCEvents now schedule themselves in the constructor.
    Get rid of constructor versions that don't take an address and
    all the schedule() methods that are now unnecessary.
kern/freebsd/freebsd_system.cc:
kern/freebsd/freebsd_system.hh:
    Use new System methods to schedule function-based events.
    Move FreeBSD-specific function event classes into FreebsdSystem.
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
    Use new System methods to schedule function-based events.
    Move Linux-specific function event classes into LinuxSystem.
kern/tru64/tru64_events.hh:
    PCEvents now schedule themselves in constructor.
    Add DebugPrintfrEvent to encapsulate raw setting as new type
    (to work better with new System function-event method.)
kern/tru64/tru64_system.cc:
    Use new System methods to schedule function-based events.
kern/tru64/tru64_system.hh:
    Add DebugPrintfrEvent to encapsulate raw setting as new type
    (to work better with new System function-event method.)
sim/system.cc:
sim/system.hh:
    Add functions to set up function-based events, including
    automatically fixing up addresses to deal with optionally
    executed Alpha gp update prolog.

--HG--
extra : convert_revision : c2cf09144297b6602afe755a34a0a2227023783f

1 files changed, 49 insertions, 2 deletions

diff --git a/sim/system.hh b/sim/system.hh
index 870805e4c..c4ecc9458 100644
--- a/sim/system.hh
+++ b/sim/system.hh
@@ -33,6 +33,7 @@
 #include <vector>
 
 #include "base/statistics.hh"
+#include "base/loader/symtab.hh"
 #include "cpu/pc_event.hh"
 #include "kern/system_events.hh"
 #include "sim/sim_object.hh"
@@ -45,7 +46,6 @@ class ObjectFile;
 class PhysicalMemory;
 class Platform;
 class RemoteGDB;
-class SymbolTable;
 namespace Kernel { class Binning; }
 
 class System : public SimObject
@@ -68,7 +68,7 @@ class System : public SimObject
         return numcpus;
     }
 
-    /** kernel Symbol table */
+    /** kernel symbol table */
     SymbolTable *kernelSymtab;
 
     /** console symbol table */
@@ -102,6 +102,53 @@ class System : public SimObject
     BreakPCEvent *consolePanicEvent;
 #endif
 
+  protected:
+
+    /**
+     * Fix up an address used to match PCs for hooking simulator
+     * events on to target function executions.  See comment in
+     * system.cc for details.
+     */
+    Addr fixFuncEventAddr(Addr addr);
+
+    /**
+     * Add a function-based event to the given function, to be looked
+     * up in the specified symbol table.
+     */
+    template <class T>
+    T *System::addFuncEvent(SymbolTable *symtab, const char *lbl)
+    {
+        Addr addr;
+
+        if (symtab->findAddress(lbl, addr)) {
+            T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr));
+            return ev;
+        }
+
+        return NULL;
+    }
+
+    /** Add a function-based event to kernel code. */
+    template <class T>
+    T *System::addKernelFuncEvent(const char *lbl)
+    {
+        return addFuncEvent<T>(kernelSymtab, lbl);
+    }
+
+    /** Add a function-based event to PALcode. */
+    template <class T>
+    T *System::addPalFuncEvent(const char *lbl)
+    {
+        return addFuncEvent<T>(palSymtab, lbl);
+    }
+
+    /** Add a function-based event to the console code. */
+    template <class T>
+    T *System::addConsoleFuncEvent(const char *lbl)
+    {
+        return addFuncEvent<T>(consoleSymtab, lbl);
+    }
+
   public:
     std::vector<RemoteGDB *> remoteGDB;
     std::vector<GDBListener *> gdbListen;