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 #include "precompiled.hpp" 26 #include "runtime/jniHandles.hpp" 27 #include "runtime/jniHandles.inline.hpp" 28 #include "oops/typeArrayOop.inline.hpp" 29 #include "prims/foreign_globals.hpp" 30 #include "prims/foreign_globals.inline.hpp" 31 32 bool ABIDescriptor::is_volatile_reg(Register reg) const { 33 return _integer_argument_registers.contains(reg) 34 || _integer_additional_volatile_registers.contains(reg); 35 } 36 37 bool ABIDescriptor::is_volatile_reg(FloatRegister reg) const { 38 return _vector_argument_registers.contains(reg) 39 || _vector_additional_volatile_registers.contains(reg); 40 } 41 42 #define INTEGER_TYPE 0 43 #define VECTOR_TYPE 1 44 45 const ABIDescriptor ForeignGlobals::parse_abi_descriptor_impl(jobject jabi) const { 46 oop abi_oop = JNIHandles::resolve_non_null(jabi); 47 ABIDescriptor abi; 48 constexpr Register (*to_Register)(int) = as_Register; 49 50 objArrayOop inputStorage = cast<objArrayOop>(abi_oop->obj_field(ABI.inputStorage_offset)); 51 loadArray(inputStorage, INTEGER_TYPE, abi._integer_argument_registers, to_Register); 52 loadArray(inputStorage, VECTOR_TYPE, abi._vector_argument_registers, as_FloatRegister); 53 54 objArrayOop outputStorage = cast<objArrayOop>(abi_oop->obj_field(ABI.outputStorage_offset)); 55 loadArray(outputStorage, INTEGER_TYPE, abi._integer_return_registers, to_Register); 56 loadArray(outputStorage, VECTOR_TYPE, abi._vector_return_registers, as_FloatRegister); 57 58 objArrayOop volatileStorage = cast<objArrayOop>(abi_oop->obj_field(ABI.volatileStorage_offset)); 59 loadArray(volatileStorage, INTEGER_TYPE, abi._integer_additional_volatile_registers, to_Register); 60 loadArray(volatileStorage, VECTOR_TYPE, abi._vector_additional_volatile_registers, as_FloatRegister); 61 62 abi._stack_alignment_bytes = abi_oop->int_field(ABI.stackAlignment_offset); 63 abi._shadow_space_bytes = abi_oop->int_field(ABI.shadowSpace_offset); 64 65 return abi; 66 } 67 68 const BufferLayout ForeignGlobals::parse_buffer_layout_impl(jobject jlayout) const { 69 oop layout_oop = JNIHandles::resolve_non_null(jlayout); 70 BufferLayout layout; 71 72 layout.stack_args_bytes = layout_oop->long_field(BL.stack_args_bytes_offset); 73 layout.stack_args = layout_oop->long_field(BL.stack_args_offset); 74 layout.arguments_next_pc = layout_oop->long_field(BL.arguments_next_pc_offset); 75 76 typeArrayOop input_offsets = cast<typeArrayOop>(layout_oop->obj_field(BL.input_type_offsets_offset)); 77 layout.arguments_integer = (size_t) input_offsets->long_at(INTEGER_TYPE); 78 layout.arguments_vector = (size_t) input_offsets->long_at(VECTOR_TYPE); 79 80 typeArrayOop output_offsets = cast<typeArrayOop>(layout_oop->obj_field(BL.output_type_offsets_offset)); 81 layout.returns_integer = (size_t) output_offsets->long_at(INTEGER_TYPE); 82 layout.returns_vector = (size_t) output_offsets->long_at(VECTOR_TYPE); 83 84 layout.buffer_size = layout_oop->long_field(BL.size_offset); 85 86 return layout; 87 } 88 89 const CallRegs ForeignGlobals::parse_call_regs_impl(jobject jconv) const { 90 ShouldNotCallThis(); 91 return {}; 92 }