1 /* 2 * Copyright (c) 1998, 2010, 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 #ifndef CPU_X86_VM_INTERPRETERRT_X86_HPP 26 #define CPU_X86_VM_INTERPRETERRT_X86_HPP 27 28 #include "memory/allocation.hpp" 29 30 // native method calls 31 32 class SignatureHandlerGenerator: public NativeSignatureIterator { 33 private: 34 MacroAssembler* _masm; 35 #ifdef AMD64 36 #ifdef _WIN64 37 unsigned int _num_args; 38 #else 39 unsigned int _num_fp_args; 40 unsigned int _num_int_args; 41 #endif // _WIN64 42 int _stack_offset; 43 #else 44 void move(int from_offset, int to_offset); 45 void box(int from_offset, int to_offset); 46 #endif // AMD64 47 48 void pass_int(); 49 void pass_long(); 50 void pass_float(); 51 #ifdef AMD64 52 void pass_double(); 53 #endif // AMD64 54 void pass_object(); 55 56 public: 57 // Creation 58 SignatureHandlerGenerator(const methodHandle& method, CodeBuffer* buffer) : NativeSignatureIterator(method) { 59 _masm = new MacroAssembler(buffer); 60 #ifdef AMD64 61 #ifdef _WIN64 62 _num_args = (method->is_static() ? 1 : 0); 63 _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address 64 #else 65 _num_int_args = (method->is_static() ? 1 : 0); 66 _num_fp_args = 0; 67 _stack_offset = wordSize; // don't overwrite return address 68 #endif // _WIN64 69 #endif // AMD64 70 } 71 72 // Code generation 73 void generate(uint64_t fingerprint); 74 75 // Code generation support 76 static Register from(); 77 static Register to(); 78 static Register temp(); 79 }; 80 81 #endif // CPU_X86_VM_INTERPRETERRT_X86_HPP