1 /*
   2  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "interpreter/bytecodeInterpreter.hpp"
  27 #include "interpreter/cppInterpreterGenerator.hpp"
  28 #include "interpreter/interpreter.hpp"
  29 #include "interpreter/interpreterRuntime.hpp"
  30 #include "memory/resourceArea.hpp"
  31 #include "runtime/logTimer.hpp"
  32 
  33 #ifdef CC_INTERP
  34 
  35 #ifdef ZERO
  36 # include "entry_zero.hpp"
  37 #else
  38 #error "Only Zero CppInterpreter is supported"
  39 #endif
  40 
  41 void CppInterpreter::initialize() {
  42   if (_code != NULL) return;
  43   AbstractInterpreter::initialize();
  44 
  45   // generate interpreter
  46   { ResourceMark rm;
  47     TraceStartupTime timer("Interpreter generation");
  48     int code_size = InterpreterCodeSize;
  49     NOT_PRODUCT(code_size *= 4;)  // debug uses extra interpreter code space
  50     _code = new StubQueue(new InterpreterCodeletInterface, code_size, NULL,
  51                            "Interpreter");
  52     CppInterpreterGenerator g(_code);
  53     if (PrintInterpreter) print();
  54   }
  55 
  56   // Allow c++ interpreter to do one initialization now that switches are set, etc.
  57   BytecodeInterpreter start_msg(BytecodeInterpreter::initialize);
  58   if (JvmtiExport::can_post_interpreter_events())
  59     BytecodeInterpreter::runWithChecks(&start_msg);
  60   else
  61     BytecodeInterpreter::run(&start_msg);
  62 }
  63 
  64 
  65 void CppInterpreter::invoke_method(Method* method, address entry_point, TRAPS) {
  66   ((ZeroEntry *) entry_point)->invoke(method, THREAD);
  67 }
  68 
  69 void CppInterpreter::invoke_osr(Method* method,
  70                                 address   entry_point,
  71                                 address   osr_buf,
  72                                 TRAPS) {
  73   ((ZeroEntry *) entry_point)->invoke_osr(method, osr_buf, THREAD);
  74 }
  75 
  76 
  77 
  78 InterpreterCodelet* CppInterpreter::codelet_containing(address pc) {
  79   // FIXME: I'm pretty sure _code is null and this is never called, which is why it's copied.
  80   return (InterpreterCodelet*)_code->stub_containing(pc);
  81 }
  82 
  83 #endif // CC_INTERP