duke@435: /*
duke@435:  * Copyright 1998-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // native method calls
duke@435: 
duke@435: class SignatureHandlerGenerator: public NativeSignatureIterator {
duke@435:  private:
duke@435:   MacroAssembler* _masm;
duke@435: #ifdef AMD64
duke@435: #ifdef _WIN64
duke@435:   unsigned int _num_args;
duke@435: #else
duke@435:   unsigned int _num_fp_args;
duke@435:   unsigned int _num_int_args;
duke@435: #endif // _WIN64
duke@435:   int _stack_offset;
duke@435: #else
duke@435:   void move(int from_offset, int to_offset);
duke@435:   void box(int from_offset, int to_offset);
duke@435: #endif // AMD64
duke@435: 
duke@435:   void pass_int();
duke@435:   void pass_long();
duke@435:   void pass_float();
duke@435: #ifdef AMD64
duke@435:   void pass_double();
duke@435: #endif // AMD64
duke@435:   void pass_object();
duke@435: 
duke@435:  public:
duke@435:   // Creation
duke@435:   SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
duke@435:     _masm = new MacroAssembler(buffer);
duke@435: #ifdef AMD64
duke@435: #ifdef _WIN64
duke@435:     _num_args = (method->is_static() ? 1 : 0);
duke@435:     _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address
duke@435: #else
duke@435:     _num_int_args = (method->is_static() ? 1 : 0);
duke@435:     _num_fp_args = 0;
duke@435:     _stack_offset = wordSize; // don't overwrite return address
duke@435: #endif // _WIN64
duke@435: #endif // AMD64
duke@435:   }
duke@435: 
duke@435:   // Code generation
duke@435:   void generate(uint64_t fingerprint);
duke@435: 
duke@435:   // Code generation support
duke@435:   static Register from();
duke@435:   static Register to();
duke@435:   static Register temp();
duke@435: };