1 /*
   2  * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2012, 2013 SAP AG. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_PPC_VM_INTERPRETERRT_PPC_HPP
  27 #define CPU_PPC_VM_INTERPRETERRT_PPC_HPP
  28 
  29 #include "memory/allocation.hpp"
  30 
  31 // native method calls
  32 
  33 class SignatureHandlerGenerator: public NativeSignatureIterator {
  34  private:
  35   MacroAssembler* _masm;
  36   // number of already used floating-point argument registers
  37   int _num_used_fp_arg_regs;
  38 
  39   void pass_int();
  40   void pass_long();
  41   void pass_double();
  42   void pass_float();
  43   void pass_object();
  44 
  45  public:
  46   // Creation
  47   SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
  48     _masm = new MacroAssembler(buffer);
  49     _num_used_fp_arg_regs = 0;
  50   }
  51 
  52   // Code generation
  53   void generate(uint64_t fingerprint);
  54 };
  55 
  56 // Support for generate_slow_signature_handler.
  57 static address get_result_handler(JavaThread* thread, Method* method);
  58 
  59 // A function to get the signature.
  60 static address get_signature(JavaThread* thread, Method* method);
  61 
  62 #endif // CPU_PPC_VM_INTERPRETERRT_PPC_HPP