4 files changed, 95 insertions, 0 deletions
diff --git a/src/sim/SConscript b/src/sim/SConscript
index c36b33b51..a3d5464e8 100644
--- a/src/sim/SConscript
+++ b/src/sim/SConscript
@@ -66,6 +66,7 @@ Source('stat_control.cc')
 Source('stat_register.cc', skip_no_python=True)
 Source('clock_domain.cc')
 Source('voltage_domain.cc')
+Source('se_signal.cc')
 Source('linear_solver.cc')
 Source('system.cc')
 Source('dvfs_handler.cc')
diff --git a/src/sim/se_signal.cc b/src/sim/se_signal.cc
new file mode 100644
index 000000000..f448c761e
--- /dev/null
+++ b/src/sim/se_signal.cc
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2017 Advanced Micro Devices, Inc.
+ * 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.
+ *
+ * Author: Brandon Potter
+ */
+
+#include "sim/se_signal.hh"
+
+BasicSignal::BasicSignal(Process *send, Process *receive, int signal_val)
+    : sender(send),
+      receiver(receive),
+      signalValue(signal_val)
+{
+}
+
+
+BasicSignal::~BasicSignal()
+{
+}
diff --git a/src/sim/se_signal.hh b/src/sim/se_signal.hh
new file mode 100644
index 000000000..e3241f5f9
--- /dev/null
+++ b/src/sim/se_signal.hh
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2017 Advanced Micro Devices, Inc.
+ * 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.
+ *
+ * Author: Brandon Potter
+ */
+
+#ifndef __SE_SIGNAL_HH__
+#define __SE_SIGNAL_HH__
+
+class Process;
+
+class BasicSignal {
+  public:
+    Process *sender;
+    Process *receiver;
+    int signalValue;
+
+    BasicSignal(Process *sender, Process *receiver, int signal_val);
+    ~BasicSignal();
+};
+
+#endif // __SE_SIGNAL_HH__
diff --git a/src/sim/system.hh b/src/sim/system.hh
index 3954b35c2..7584cebc9 100644
--- a/src/sim/system.hh
+++ b/src/sim/system.hh
@@ -61,6 +61,7 @@
 #include "mem/port_proxy.hh"
 #include "mem/physical.hh"
 #include "params/System.hh"
+#include "sim/se_signal.hh"
 
 /**
  * To avoid linking errors with LTO, only include the header if we
@@ -556,6 +557,10 @@ class System : public MemObject
     /** Process set to track which PIDs have already been allocated */
     std::set<int> PIDs;
 
+    // By convention, all signals are owned by the receiving process. The
+    // receiver will delete the signal upon reception.
+    std::list<BasicSignal> signalList;
+
   protected:
 
     /**