systemc: Seperate the "external" header interface.

Most (but not all) of the SystemC headers are part of the "external"
interface that an existing, standard compliant module would include
through <systemc.h> or <systemc>. Since those follow slightly different
rules (relative includes, no gem5 includes), this change separates them
out so that they're easier to identify.

Also, this change moves the other files into a "core" subdirectory,
with the intention to add a "dt", aka data type, directory some time in
the future when those standard defined types are implemented.

Change-Id: Ida63f9cc0bc0431024d4dd691cc5b22b944a99a8
Reviewed-on: https://gem5-review.googlesource.com/10835
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/src/systemc/ext/core/sc_export.hh b/src/systemc/ext/core/sc_export.hh
new file mode 100644
index 000000000..dc2176492
--- /dev/null
+++ b/src/systemc/ext/core/sc_export.hh
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * 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.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
+#define __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
+
+#include "sc_object.hh"
+
+namespace sc_core
+{
+
+class sc_interface;
+
+class sc_export_base : public sc_object
+{
+  public:
+    void warn_unimpl(const char *func) const;
+};
+
+template <class IF>
+class sc_export : public sc_export_base
+{
+  public:
+    sc_export() { warn_unimpl(__PRETTY_FUNCTION__); }
+    explicit sc_export(const char *) { warn_unimpl(__PRETTY_FUNCTION__); }
+    virtual ~sc_export() { warn_unimpl(__PRETTY_FUNCTION__); };
+
+    virtual const char *kind() const { return "sc_export"; }
+
+    void operator () (IF &) { warn_unimpl(__PRETTY_FUNCTION__); };
+    virtual void bind(IF &) { warn_unimpl(__PRETTY_FUNCTION__); };
+    operator IF & () { warn_unimpl(__PRETTY_FUNCTION__); };
+    operator const IF & () const { warn_unimpl(__PRETTY_FUNCTION__); };
+
+    IF *
+    operator -> ()
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+        return nullptr;
+    }
+    const IF *
+    operator -> () const
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+        return nullptr;
+    }
+
+    virtual sc_interface *
+    get_iterface()
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+        return nullptr;
+    }
+    virtual const sc_interface *
+    get_interface() const
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+        return nullptr;
+    }
+
+  protected:
+    virtual void before_end_of_elaboration() {}
+    virtual void end_of_elaboration() {}
+    virtual void start_of_simulation() {}
+    virtual void end_of_simulation() {}
+
+  private:
+    // Disabled
+    sc_export(const sc_export<IF> &);
+    sc_export<IF> &operator = (const sc_export<IF> &);
+};
+
+} // namespace sc_core
+
+#endif  //__SYSTEMC_EXT_CORE_SC_EXPORT_HH__