util/m5/src/call_type/semi.cc

   1 /*
   2  * Copyright 2020 Google Inc.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met: redistributions of source code must retain the above copyright
   7  * notice, this list of conditions and the following disclaimer;
   8  * redistributions in binary form must reproduce the above copyright
   9  * notice, this list of conditions and the following disclaimer in the
  10  * documentation and/or other materials provided with the distribution;
  11  * neither the name of the copyright holders nor the names of its
  12  * contributors may be used to endorse or promote products derived from
  13  * this software without specific prior written permission.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include <cstring>
  29
  30 #include "call_type.hh"
  31
  32 extern "C"
  33 {
  34 #define M5OP(name, func) __typeof__(name) M5OP_MERGE_TOKENS(name, _semi);
  35 M5OP_FOREACH
  36 #undef M5OP
  37 }
  38
  39 namespace
  40 {
  41
  42 DispatchTable semi_dispatch = {
  43 #define M5OP(name, func) .name = &::M5OP_MERGE_TOKENS(name, _semi),
  44 M5OP_FOREACH
  45 #undef M5OP
  46 };
  47
  48 class SemiCallType : public CallType
  49 {
  50   public:
  51     bool isDefault() const override { return CALL_TYPE_IS_DEFAULT; }
  52     const DispatchTable &getDispatch() const override { return semi_dispatch; }
  53
  54     bool
  55     checkArgs(Args &args) override
  56     {
  57         if (args.size() && args[0] == "--semi") {
  58             args.pop();
  59             return true;
  60         }
  61         return false;
  62     }
  63
  64     void printBrief(std::ostream &os) const override { os << "--semi"; }
  65     void
  66     printDesc(std::ostream &os) const override
  67     {
  68         os << "Use the semi-hosting based invocation method.";
  69     }
  70 } semi_call_type;
  71
  72 } // anonymous namespace