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diff --git a/src/systemc/core/sc_main_fiber.hh b/src/systemc/core/sc_main_fiber.hh
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+/*
+ * 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_CORE_SC_MAIN_FIBER_HH__
+#define __SYSTEMC_CORE_SC_MAIN_FIBER_HH__
+
+#include "base/fiber.hh"
+#include "base/logging.hh"
+
+namespace sc_gem5
+{
+
+class ScMainFiber : public Fiber
+{
+  private:
+    int _argc = 0;
+    char **_argv = NULL;
+    std::string _resultStr;
+    int _resultInt = 1;
+
+    bool _called = false;
+
+  public:
+    int argc() { return _argc; }
+    const char *const *argv() { return _argv; }
+    std::string resultStr() { return _resultStr; }
+    int resultInt() { return _resultInt; }
+    bool called() { return _called; }
+
+    void
+    setArgs(int new_argc, char **new_argv)
+    {
+        _argc = new_argc;
+        _argv = new_argv;
+    }
+
+    void main() override;
+};
+
+extern ScMainFiber scMainFiber;
+
+} // namespace sc_gem5
+
+#endif // __SYSTEMC_CORE_SC_MAIN_FIBER_HH__