1 /*

     2  * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2014, Red Hat Inc. 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_AARCH64_VM_INTERPRETERRT_AARCH64_HPP

    27 #define CPU_AARCH64_VM_INTERPRETERRT_AARCH64_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   unsigned int _call_format;

    38   unsigned int _num_fp_args;

    39   unsigned int _num_int_args;

    40   int _stack_offset;

    41 

    42   void pass_int();

    43   void pass_long();

    44   void pass_float();

    45   void pass_double();

    46   void pass_object();

    47 

    48  public:

    49   // Creation

    50   SignatureHandlerGenerator(const methodHandle& method, CodeBuffer* buffer) : NativeSignatureIterator(method) {

    51     _masm = new MacroAssembler(buffer);

    52     _num_int_args = (method->is_static() ? 1 : 0);

    53     _num_fp_args = 0;

    54     _stack_offset = 0;

    55   }

    56 

    57   // Code generation

    58   void generate(uint64_t fingerprint);

    59 

    60   // Code generation support

    61   static Register from();

    62   static Register to();

    63   static Register temp();

    64 };

    65 

    66 #endif // CPU_AARCH64_VM_INTERPRETERRT_AARCH64_HPP