systemc: Add some "implementation defined" stuff to sc_attr_cltn.

These "impelementation defined" methods are tested by the regression
tests, so we need to have them. We might as well have the same
general interface as the Accellera implementation since nothing there
seems overly specialized for that environment.

Change-Id: Ief6567fcd9d99d3a0f526cfa3b65043b2c828efa
Reviewed-on: https://gem5-review.googlesource.com/11185
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/core/sc_attr.cc

@@ -89,4 +89,53 @@ sc_attr_cltn::end() const
     return (const_iterator)nullptr;
 }
 
+sc_attr_cltn::sc_attr_cltn()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_attr_cltn::sc_attr_cltn(const sc_attr_cltn &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_attr_cltn::~sc_attr_cltn()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+bool
+sc_attr_cltn::push_back(sc_attr_base *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return false;
+}
+
+sc_attr_base *
+sc_attr_cltn::operator [] (const std::string &name)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return nullptr;
+}
+
+const sc_attr_base *
+sc_attr_cltn::operator [] (const std::string &name) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return nullptr;
+}
+
+sc_attr_base *
+sc_attr_cltn::remove(const std::string &name)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return nullptr;
+}
+
+void
+sc_attr_cltn::remove_all()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
 } // namespace sc_core

src/systemc/ext/core/sc_attr.hh

@@ -31,6 +31,7 @@
 #define __SYSTEMC_EXT_CORE_SC_ATTR_HH__
 
 #include <string>
+#include <vector>
 
 namespace sc_core
 {
@@ -91,6 +92,33 @@ class sc_attr_cltn
     const_iterator begin() const;
     iterator end();
     const_iterator end() const;
+
+  private:
+    // Disabled
+    sc_attr_cltn &operator = (const sc_attr_cltn &);
+
+    // "Impelemtation defined" members required by the regression tests.
+  public:
+    sc_attr_cltn();
+
+    // It's non-standard for this not to be disabled.
+    sc_attr_cltn(const sc_attr_cltn &);
+
+    ~sc_attr_cltn();
+
+    bool push_back(sc_attr_base *);
+
+    sc_attr_base *operator [] (const std::string &name);
+    const sc_attr_base *operator [] (const std::string &name) const;
+
+    sc_attr_base *remove(const std::string &name);
+
+    void remove_all();
+
+    int size() const { return cltn.size(); }
+
+  private:
+    std::vector<sc_attr_base *> cltn;
 };
 
 } // namespace sc_core

src/systemc/ext/core/sc_process_handle.hh

@@ -66,10 +66,15 @@ class sc_unwind_exception : public std::exception
     virtual const char *what() const throw();
     virtual bool is_reset() const;
 
-  protected:
-    sc_unwind_exception();
+    // Nonstandard.
+    // These should be protected, but I think this is to enable catch by
+    // value.
+  public:
     sc_unwind_exception(const sc_unwind_exception &);
     virtual ~sc_unwind_exception() throw();
+
+  protected:
+    sc_unwind_exception();
 };
 
 class sc_process_handle