1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2019, Arm Limited. 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 #ifndef CPU_AARCH64_VM_FOREIGN_GLOBALS_AARCH64_HPP 26 #define CPU_AARCH64_VM_FOREIGN_GLOBALS_AARCH64_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "utilities/growableArray.hpp" 30 31 constexpr size_t float_reg_size = 16; // bytes 32 33 struct ABIDescriptor { 34 GrowableArray<Register> _integer_argument_registers; 35 GrowableArray<Register> _integer_return_registers; 36 GrowableArray<FloatRegister> _vector_argument_registers; 37 GrowableArray<FloatRegister> _vector_return_registers; 38 39 GrowableArray<Register> _integer_additional_volatile_registers; 40 GrowableArray<FloatRegister> _vector_additional_volatile_registers; 41 42 int32_t _stack_alignment_bytes; 43 int32_t _shadow_space_bytes; 44 45 bool is_volatile_reg(Register reg) const; 46 bool is_volatile_reg(FloatRegister reg) const; 47 }; 48 49 struct BufferLayout { 50 size_t stack_args_bytes; 51 size_t stack_args; 52 size_t arguments_vector; 53 size_t arguments_integer; 54 size_t arguments_next_pc; 55 size_t returns_vector; 56 size_t returns_integer; 57 size_t buffer_size; 58 }; 59 60 #endif // CPU_AARCH64_VM_FOREIGN_GLOBALS_AARCH64_HPP