add in an init() callback for CPU's so that no stats are accessed prior to the end of the build process. (Done by doing the registerExecContext() calling sequence in the init() process rather than the create() process).

cpu/simple_cpu/simple_cpu.cc:
cpu/simple_cpu/simple_cpu.hh:
    same thing for simple cpu's.

--HG--
extra : convert_revision : aac9f91742866fb26f8cace622f9b88454a69662

2 files changed, 23 insertions, 8 deletions

diff --git a/cpu/simple_cpu/simple_cpu.cc b/cpu/simple_cpu/simple_cpu.cc
index d039890c7..721861dd5 100644
--- a/cpu/simple_cpu/simple_cpu.cc
+++ b/cpu/simple_cpu/simple_cpu.cc
@@ -120,7 +120,7 @@ SimpleCPU::SimpleCPU(const string &_name,
                      FunctionalMemory *mem,
                      MemInterface *icache_interface,
                      MemInterface *dcache_interface,
-                     Tick freq)
+                     bool _def_reg, Tick freq)
     : BaseCPU(_name, /* number_of_threads */ 1,
               max_insts_any_thread, max_insts_all_threads,
               max_loads_any_thread, max_loads_all_threads,
@@ -132,12 +132,14 @@ SimpleCPU::SimpleCPU(const string &_name, Process *_process,
                      Counter max_loads_any_thread,
                      Counter max_loads_all_threads,
                      MemInterface *icache_interface,
-                     MemInterface *dcache_interface)
+                     MemInterface *dcache_interface,
+                     bool _def_reg)
     : BaseCPU(_name, /* number_of_threads */ 1,
               max_insts_any_thread, max_insts_all_threads,
               max_loads_any_thread, max_loads_all_threads),
 #endif
-      tickEvent(this), xc(NULL), cacheCompletionEvent(this)
+      tickEvent(this), xc(NULL), defer_registration(_def_reg),
+      cacheCompletionEvent(this)
 {
     _status = Idle;
 #ifdef FULL_SYSTEM
@@ -171,6 +173,13 @@ SimpleCPU::~SimpleCPU()
 {
 }
 
+void SimpleCPU::init()
+{
+    if (!defer_registration) {
+        this->registerExecContexts();
+    }
+}
+
 void
 SimpleCPU::switchOut()
 {
@@ -810,6 +819,7 @@ CREATE_SIM_OBJECT(SimpleCPU)
                         itb, dtb, mem,
                         (icache) ? icache->getInterface() : NULL,
                         (dcache) ? dcache->getInterface() : NULL,
+                        defer_registration,
                         ticksPerSecond * mult);
 #else
 
@@ -817,14 +827,15 @@ CREATE_SIM_OBJECT(SimpleCPU)
                         max_insts_any_thread, max_insts_all_threads,
                         max_loads_any_thread, max_loads_all_threads,
                         (icache) ? icache->getInterface() : NULL,
-                        (dcache) ? dcache->getInterface() : NULL);
+                        (dcache) ? dcache->getInterface() : NULL,
+                        defer_registration);
 
 #endif // FULL_SYSTEM
-
+#if 0
     if (!defer_registration) {
         cpu->registerExecContexts();
     }
-
+#endif
     return cpu;
 }
 
diff --git a/cpu/simple_cpu/simple_cpu.hh b/cpu/simple_cpu/simple_cpu.hh
index 16753fa4f..4a9872e75 100644
--- a/cpu/simple_cpu/simple_cpu.hh
+++ b/cpu/simple_cpu/simple_cpu.hh
@@ -133,7 +133,7 @@ class SimpleCPU : public BaseCPU
               Counter max_loads_any_thread, Counter max_loads_all_threads,
               AlphaItb *itb, AlphaDtb *dtb, FunctionalMemory *mem,
               MemInterface *icache_interface, MemInterface *dcache_interface,
-              Tick freq);
+              bool _def_reg, Tick freq);
 
 #else
 
@@ -142,11 +142,13 @@ class SimpleCPU : public BaseCPU
               Counter max_insts_all_threads,
               Counter max_loads_any_thread,
               Counter max_loads_all_threads,
-              MemInterface *icache_interface, MemInterface *dcache_interface);
+              MemInterface *icache_interface, MemInterface *dcache_interface,
+              bool _def_reg);
 
 #endif
 
     virtual ~SimpleCPU();
+    virtual void init();
 
     // execution context
     ExecContext *xc;
@@ -166,6 +168,8 @@ class SimpleCPU : public BaseCPU
     // L1 data cache
     MemInterface *dcacheInterface;
 
+    bool defer_registration;
+
     // current instruction
     MachInst inst;