systemc: Add nonstandard sc_trace-s for sc_event and sc_time.

These are not in the standard but are defined by Accellera and are
used in the regression tests.

Change-Id: Idb8358530b1135526c52733e628461a17308e216
Reviewed-on: https://gem5-review.googlesource.com/11259
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/ext/utils/sc_trace_file.hh

diff --git a/src/systemc/ext/utils/sc_trace_file.hh b/src/systemc/ext/utils/sc_trace_file.hh
index 9e9e75b..9281d47 100644
--- a/src/systemc/ext/utils/sc_trace_file.hh
+++ b/src/systemc/ext/utils/sc_trace_file.hh
@@ -58,6 +58,9 @@
 template <class T>
 class sc_signal_in_if;
 
+class sc_event;
+class sc_time;
+
 class sc_trace_file
 {
   public:
@@ -108,6 +111,14 @@
               const std::string &);
 
 
+// Nonstandard
+// sc_trace overloads for sc_event and sc_time.
+void sc_trace(sc_trace_file *, const sc_event &, const std::string &);
+void sc_trace(sc_trace_file *, const sc_event *, const std::string &);
+void sc_trace(sc_trace_file *, const sc_time &, const std::string &);
+void sc_trace(sc_trace_file *, const sc_time *, const std::string &);
+
+
 // Nonstandard - unsigned versions necessary to avoid ambiguous overload
 // resolution.
 void sc_trace(sc_trace_file *, const unsigned char &,

src/systemc/utils/sc_trace_file.cc

diff --git a/src/systemc/utils/sc_trace_file.cc b/src/systemc/utils/sc_trace_file.cc
index 66f7fef..9cae922 100644
--- a/src/systemc/utils/sc_trace_file.cc
+++ b/src/systemc/utils/sc_trace_file.cc
@@ -221,6 +221,30 @@
 }
 
 void
+sc_trace(sc_trace_file *, const sc_event &, const std::string &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_trace(sc_trace_file *, const sc_event *, const std::string &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_trace(sc_trace_file *, const sc_time &, const std::string &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_trace(sc_trace_file *, const sc_time *, const std::string &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
 sc_trace(sc_trace_file *, const unsigned char &,
          const std::string &, int width)
 {