misc: Reorder sources in util/tlm and rewrite build scripts

* Use one SConstruct to build everything instead of one SConstruct for
  each example.
* Introduce SConscripts for sub-directories.
* Build in 'build' instead of the source tree.
* Build and link to SystemC from the ext/systemc directory. This
  ensures that SystemC does not need to be installed on the host and
  avoids possible issues caused by an incompatible SystemC build.
* Update the README and add some minor fixes

Change-Id: I641ed94f542626864fb7af499ad1be8fd4ad929f
Reviewed-on: https://gem5-review.googlesource.com/3480
Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 0 insertions, 129 deletions

diff --git a/util/tlm/sim_control.hh b/util/tlm/sim_control.hh
deleted file mode 100644
index 399372c7f..000000000
--- a/util/tlm/sim_control.hh
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Copyright (c) 2015, University of Kaiserslautern
- * Copyright (c) 2016, Dresden University of Technology (TU Dresden)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *
- * 2. 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.
- *
- * 3. Neither the name of the copyright holder 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 HOLDER
- * 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: Matthias Jung
- *          Christian Menard
- */
-
-#ifndef __SC_SIM_CONTROL_HH__
-#define __SC_SIM_CONTROL_HH__
-
-#include <tlm_utils/simple_target_socket.h>
-
-#include <systemc>
-#include <tlm>
-
-#include "sc_logger.hh"
-#include "sc_module.hh"
-#include "sim/cxx_manager.hh"
-#include "sim/system.hh"
-#include "sim_control_if.hh"
-
-namespace Gem5SystemC
-{
-
-/**
- * This is the central SystemC module that orchestrates the gem5 simulation.
- *
- * The module is responsible for loading the configuration file, setting up and
- * maintaining the event queues, as well as starting and ending the simulation.
- * While it is mandatory to have one instance of this class for running a gem5
- * simulation in SystemC, it is not allowed to have multiple instances!
- */
-class Gem5SimControl : public Module, public Gem5SimControlInterface
-{
-  protected:
-    CxxConfigManager* config_manager;
-    Gem5SystemC::Logger logger;
-
-    Tick simulationEnd;
-
-    /*
-     * Keep track of the slave and master ports that are created by gem5
-     * according to the config file.
-     */
-    std::map<const std::string, SCSlavePort*> slavePorts;
-    std::map<const std::string, SCMasterPort*> masterPorts;
-
-    /// Pointer to a previously created instance.
-    static Gem5SimControl* instance;
-
-    /** A callback that is called from the run thread before gem5 simulation is
-     * started.
-     *
-     * A derived class may use this to perform any additional initializations
-     * prior simulation.
-     */
-    virtual void beforeSimulate() {}
-
-    /** A callback that is called from the run thread after gem5 simulation
-     * completed.
-     *
-     * A derived class may use this to perform any additional tasks after gem5
-     * exits. For instance, a derived class could use this to call sc_stop().
-     */
-    virtual void afterSimulate() {}
-
-  public:
-    SC_HAS_PROCESS(Gem5SimControl);
-
-    /**
-     * Constructor.
-     *
-     * This class has a public constructor although the class is actually a
-     * singleton. The public constructor is required to ensure compatibility
-     * to external SystemC based tools. For the same reason, the constructor
-     * parameters are basic types (int, string).
-     *
-     * @param configFile     location of the gem5 configuration file
-     * @param simulationEnd  number of ticks to simulate
-     * @param gem5DebugFlags a space separated list of gem5 debug flags to be
-     *                       set, a prepended '-' clears the flag
-     */
-    Gem5SimControl(sc_core::sc_module_name name,
-                   const std::string& configFile,
-                   uint64_t simulationEnd,
-                   const std::string& gem5DebugFlags);
-
-    void registerSlavePort(const std::string& name, SCSlavePort* port);
-    void registerMasterPort(const std::string& name, SCMasterPort* port);
-    SCSlavePort* getSlavePort(const std::string& name) override;
-    SCMasterPort* getMasterPort(const std::string& name) override;
-
-    void end_of_elaboration();
-
-    void run();
-};
-
-}
-
-#endif