sim-se: Add prlimit system call

[gem5.git] / src / sim / simulate.cc

diff --git a/src/sim/simulate.cc b/src/sim/simulate.cc
index 7d88dc11d3941e6e44e1360fe3e434f63322a69b..d3c27fa08c5708eeafafd96d190a247176fbc432 100644 (file)
--- a/src/sim/simulate.cc
+++ b/src/sim/simulate.cc
@@ -31,6 +31,8 @@
  *          Steve Reinhardt
  */
 
+#include "sim/simulate.hh"
+
 #include <mutex>
 #include <thread>
 
@@ -41,7 +43,6 @@
 #include "sim/eventq_impl.hh"
 #include "sim/sim_events.hh"
 #include "sim/sim_exit.hh"
-#include "sim/simulate.hh"
 #include "sim/stat_control.hh"
 
 //! Mutex for handling async events.
@@ -71,9 +72,11 @@ thread_loop(EventQueue *queue)
     }
 }
 
+GlobalSimLoopExitEvent *simulate_limit_event = nullptr;
+
 /** Simulate for num_cycles additional cycles.  If num_cycles is -1
  * (the default), do not limit simulation; some other event must
- * terminate the loop.  Exported to Python via SWIG.
+ * terminate the loop.  Exported to Python.
  * @return The SimLoopExitEvent that caused the loop to exit.
  */
 GlobalSimLoopExitEvent *
@@ -96,6 +99,9 @@ simulate(Tick num_cycles)
         }
 
         threads_initialized = true;
+        simulate_limit_event =
+            new GlobalSimLoopExitEvent(mainEventQueue[0]->getCurTick(),
+                                       "simulate() limit reached", 0);
     }
 
     inform("Entering event queue @ %d.  Starting simulation...\n", curTick());
@@ -105,8 +111,7 @@ simulate(Tick num_cycles)
     else // counter would roll over or be set to MaxTick anyhow
         num_cycles = MaxTick;
 
-    GlobalEvent *limit_event = new GlobalSimLoopExitEvent(num_cycles,
-                                "simulate() limit reached", 0, 0);
+    simulate_limit_event->reschedule(num_cycles);
 
     GlobalSyncEvent *quantum_event = NULL;
     if (numMainEventQueues > 1) {
@@ -137,13 +142,6 @@ simulate(Tick num_cycles)
         dynamic_cast<GlobalSimLoopExitEvent *>(global_event);
     assert(global_exit_event != NULL);
 
-    // if we didn't hit limit_event, delete it.
-    if (global_exit_event != limit_event) {
-        assert(limit_event->scheduled());
-        limit_event->deschedule();
-        delete limit_event;
-    }
-
     //! Delete the simulation quantum event.
     if (quantum_event != NULL) {
         quantum_event->deschedule();