systemc: Stub out the predefined channels.

Change-Id: Ie030aad26875bd49e54981ec1e9076b7b5af6630
Reviewed-on: https://gem5-review.googlesource.com/10839
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/src/systemc/ext/channel/sc_semaphore_if.hh b/src/systemc/ext/channel/sc_semaphore_if.hh
new file mode 100644
index 000000000..2beb9b76b
--- /dev/null
+++ b/src/systemc/ext/channel/sc_semaphore_if.hh
@@ -0,0 +1,57 @@
+/*
+ * 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_CHANNEL_SC_SEMAPHORE_IF_HH__
+#define __SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_IF_HH__
+
+#include "../core/sc_interface.hh"
+
+namespace sc_core
+{
+
+class sc_semaphore_if : virtual public sc_interface
+{
+  public:
+    virtual int wait() = 0;
+    virtual int trywait() = 0;
+    virtual int post() = 0;
+    virtual int get_value() const = 0;
+
+  protected:
+    sc_semaphore_if() : sc_interface() {}
+
+  private:
+    // Disabled
+    sc_semaphore_if(const sc_semaphore_if &) : sc_interface() {}
+    sc_semaphore_if &operator = (const sc_semaphore_if &) { return *this; }
+};
+
+} // namespace sc_core
+
+#endif  //__SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_IF_HH__