diff --git a/src/systemc/core/SConscript b/src/systemc/core/SConscript
index 4cc6b68..e12ed59 100644
--- a/src/systemc/core/SConscript
+++ b/src/systemc/core/SConscript
@@ -44,4 +44,5 @@
     Source('sc_process_handle.cc')
     Source('sc_prim.cc')
     Source('sc_sensitive.cc')
+    Source('sc_spawn.cc')
     Source('sc_time.cc')
diff --git a/src/systemc/core/sc_spawn.cc b/src/systemc/core/sc_spawn.cc
new file mode 100644
index 0000000..fd7dc0a
--- /dev/null
+++ b/src/systemc/core/sc_spawn.cc
@@ -0,0 +1,163 @@
+/*
+ * 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
+ */
+
+#include "base/logging.hh"
+#include "systemc/ext/core/sc_spawn.hh"
+
+namespace sc_core
+{
+
+sc_spawn_options::sc_spawn_options()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+
+void
+sc_spawn_options::spawn_method()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::dont_initialize()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::set_stack_size(int)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+
+void
+sc_spawn_options::set_sensitivity(const sc_event *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::set_sensitivity(sc_port_base *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::set_sensitivity(sc_export_base *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::set_sensitivity(sc_interface *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::set_sensitivity(sc_event_finder *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+
+void
+sc_spawn_options::reset_signal_is(const sc_in<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::reset_signal_is(const sc_inout<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::reset_signal_is(const sc_out<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::reset_signal_is(const sc_signal_in_if<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+
+void
+sc_spawn_options::async_reset_signal_is(const sc_in<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::async_reset_signal_is(const sc_inout<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::async_reset_signal_is(const sc_out<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_spawn_options::async_reset_signal_is(const sc_signal_in_if<bool> &, bool)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+
+void
+sc_spawn_warn_unimpl(const char *func)
+{
+    warn("%s not implemented.\n", func);
+}
+
+} // namespace sc_core
+
+namespace sc_unnamed
+{
+
+ImplementationDefined _1;
+ImplementationDefined _2;
+ImplementationDefined _3;
+ImplementationDefined _4;
+ImplementationDefined _5;
+ImplementationDefined _6;
+ImplementationDefined _7;
+ImplementationDefined _8;
+ImplementationDefined _9;
+
+} // namespace sc_unnamed
diff --git a/src/systemc/ext/core/sc_spawn.hh b/src/systemc/ext/core/sc_spawn.hh
new file mode 100644
index 0000000..f1b110b
--- /dev/null
+++ b/src/systemc/ext/core/sc_spawn.hh
@@ -0,0 +1,129 @@
+/*
+ * 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_SPAWN_HH__
+#define __SYSTEMC_EXT_CORE_SC_SPAWN_HH__
+
+#include "sc_process_handle.hh"
+
+namespace sc_core
+{
+
+template <class T>
+class sc_in;
+template <class T>
+class sc_inout;
+template <class T>
+class sc_out;
+template <class T>
+class sc_signal_in_if;
+
+class sc_event;
+class sc_event_finder;
+class sc_export_base;
+class sc_interface;
+class sc_port_base;
+
+class sc_spawn_options
+{
+  public:
+    sc_spawn_options();
+
+    void spawn_method();
+    void dont_initialize();
+    void set_stack_size(int);
+
+    void set_sensitivity(const sc_event *);
+    void set_sensitivity(sc_port_base *);
+    void set_sensitivity(sc_export_base *);
+    void set_sensitivity(sc_interface *);
+    void set_sensitivity(sc_event_finder *);
+
+    void reset_signal_is(const sc_in<bool> &, bool);
+    void reset_signal_is(const sc_inout<bool> &, bool);
+    void reset_signal_is(const sc_out<bool> &, bool);
+    void reset_signal_is(const sc_signal_in_if<bool> &, bool);
+
+    void async_reset_signal_is(const sc_in<bool> &, bool);
+    void async_reset_signal_is(const sc_inout<bool> &, bool);
+    void async_reset_signal_is(const sc_out<bool> &, bool);
+    void async_reset_signal_is(const sc_signal_in_if<bool> &, bool);
+
+  private:
+    // Disabled
+    sc_spawn_options(const sc_spawn_options &) {}
+    sc_spawn_options &operator = (const sc_spawn_options &) { return *this; }
+};
+
+void sc_spawn_warn_unimpl(const char *func);
+
+template <typename T>
+sc_process_handle
+sc_spawn(T object, const char *name_p=nullptr,
+         const sc_spawn_options *opt_p=nullptr)
+{
+    sc_spawn_warn_unimpl(__PRETTY_FUNCTION__);
+    return sc_process_handle();
+}
+
+template <typename T>
+sc_process_handle
+sc_spawn(typename T::result_type *r_p, T object, const char *name_p=nullptr,
+         const sc_spawn_options *opt_p=nullptr)
+{
+    sc_spawn_warn_unimpl(__PRETTY_FUNCTION__);
+    return sc_process_handle();
+}
+
+#define sc_bind boost::bind
+#define sc_ref(r) boost::ref(r)
+#define sc_cref(r) boost::cref(r)
+
+#define SC_FORK /* Implementation defined */
+#define SC_JOIN /* Implementation defined */
+
+} // namespace sc_core
+
+namespace sc_unnamed
+{
+
+typedef int ImplementationDefined;
+extern ImplementationDefined _1;
+extern ImplementationDefined _2;
+extern ImplementationDefined _3;
+extern ImplementationDefined _4;
+extern ImplementationDefined _5;
+extern ImplementationDefined _6;
+extern ImplementationDefined _7;
+extern ImplementationDefined _8;
+extern ImplementationDefined _9;
+
+} // namespace sc_unnamed
+
+#endif  //__SYSTEMC_EXT_CORE_SC_SPAWN_HH__