1 /*
   2  * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2012, 2014 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 "asm/macroAssembler.hpp"
  30 #include "memory/allocation.hpp"
  31 
  32 // native method calls
  33 
  34 class SignatureHandlerGenerator: public NativeSignatureIterator {
  35  private:
  36   MacroAssembler* _masm;
  37   // number of already used floating-point argument registers
  38   int _num_used_fp_arg_regs;
  39 
  40   void pass_int();
  41   void pass_long();
  42   void pass_double();
  43   void pass_float();
  44   void pass_object();
  45 
  46  public:
  47   // Creation
  48   SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
  49     _masm = new MacroAssembler(buffer);
  50     _num_used_fp_arg_regs = 0;
  51   }
  52 
  53   // Code generation
  54   void generate(uint64_t fingerprint);
  55 };
  56 
  57 // Support for generate_slow_signature_handler.
  58 static address get_result_handler(JavaThread* thread, Method* method);
  59 
  60 // A function to get the signature.
  61 static address get_signature(JavaThread* thread, Method* method);
  62 
  63 #endif // CPU_PPC_VM_INTERPRETERRT_PPC_HPP