author | coleenp |
Mon, 04 Jun 2018 10:18:43 -0400 | |
changeset 50380 | bec342339138 |
parent 49480 | d7df2dd501ce |
child 54523 | 5df03f58d25b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
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* Copyright (c) 2014, Red Hat Inc. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "asm/macroAssembler.inline.hpp" |
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#include "interpreter/interp_masm.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "interpreter/interpreterRuntime.hpp" |
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#include "memory/allocation.inline.hpp" |
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#include "memory/universe.hpp" |
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#include "oops/method.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/icache.hpp" |
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#include "runtime/interfaceSupport.inline.hpp" |
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#include "runtime/signature.hpp" |
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#define __ _masm-> |
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// Implementation of SignatureHandlerGenerator |
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Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rlocals; } |
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Register InterpreterRuntime::SignatureHandlerGenerator::to() { return sp; } |
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Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; } |
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InterpreterRuntime::SignatureHandlerGenerator::SignatureHandlerGenerator( |
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const methodHandle& method, CodeBuffer* buffer) : NativeSignatureIterator(method) { |
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_masm = new MacroAssembler(buffer); |
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_num_int_args = (method->is_static() ? 1 : 0); |
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_num_fp_args = 0; |
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_stack_offset = 0; |
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} |
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void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { |
56 |
const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
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switch (_num_int_args) { |
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case 0: |
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__ ldr(c_rarg1, src); |
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_num_int_args++; |
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break; |
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case 1: |
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__ ldr(c_rarg2, src); |
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_num_int_args++; |
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break; |
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case 2: |
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__ ldr(c_rarg3, src); |
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_num_int_args++; |
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break; |
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case 3: |
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__ ldr(c_rarg4, src); |
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_num_int_args++; |
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break; |
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case 4: |
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__ ldr(c_rarg5, src); |
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_num_int_args++; |
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break; |
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case 5: |
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__ ldr(c_rarg6, src); |
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_num_int_args++; |
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break; |
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case 6: |
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__ ldr(c_rarg7, src); |
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_num_int_args++; |
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break; |
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default: |
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__ ldr(r0, src); |
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__ str(r0, Address(to(), _stack_offset)); |
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_stack_offset += wordSize; |
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_num_int_args++; |
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break; |
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} |
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} |
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void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { |
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const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
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switch (_num_int_args) { |
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case 0: |
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__ ldr(c_rarg1, src); |
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_num_int_args++; |
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break; |
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case 1: |
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__ ldr(c_rarg2, src); |
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_num_int_args++; |
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break; |
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case 2: |
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__ ldr(c_rarg3, src); |
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_num_int_args++; |
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break; |
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case 3: |
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__ ldr(c_rarg4, src); |
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_num_int_args++; |
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break; |
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case 4: |
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__ ldr(c_rarg5, src); |
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_num_int_args++; |
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break; |
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case 5: |
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__ ldr(c_rarg6, src); |
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_num_int_args++; |
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break; |
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case 6: |
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__ ldr(c_rarg7, src); |
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_num_int_args++; |
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break; |
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default: |
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__ ldr(r0, src); |
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__ str(r0, Address(to(), _stack_offset)); |
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_stack_offset += wordSize; |
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_num_int_args++; |
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break; |
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} |
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} |
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void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { |
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const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
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if (_num_fp_args < Argument::n_float_register_parameters_c) { |
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__ ldrs(as_FloatRegister(_num_fp_args++), src); |
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} else { |
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__ ldrw(r0, src); |
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__ strw(r0, Address(to(), _stack_offset)); |
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_stack_offset += wordSize; |
146 |
_num_fp_args++; |
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} |
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} |
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void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { |
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const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
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if (_num_fp_args < Argument::n_float_register_parameters_c) { |
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__ ldrd(as_FloatRegister(_num_fp_args++), src); |
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} else { |
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__ ldr(r0, src); |
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__ str(r0, Address(to(), _stack_offset)); |
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_stack_offset += wordSize; |
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_num_fp_args++; |
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} |
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} |
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void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { |
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switch (_num_int_args) { |
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case 0: |
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assert(offset() == 0, "argument register 1 can only be (non-null) receiver"); |
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__ add(c_rarg1, from(), Interpreter::local_offset_in_bytes(offset())); |
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_num_int_args++; |
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break; |
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case 1: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg2, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg2, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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case 2: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg3, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg3, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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case 3: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg4, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg4, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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case 4: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg5, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg5, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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case 5: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg6, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg6, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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case 6: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ mov(c_rarg7, 0); |
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__ ldr(temp(), r0); |
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Label L; |
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__ cbz(temp(), L); |
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__ mov(c_rarg7, r0); |
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__ bind(L); |
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_num_int_args++; |
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break; |
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} |
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default: |
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{ |
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__ add(r0, from(), Interpreter::local_offset_in_bytes(offset())); |
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__ ldr(temp(), r0); |
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247 |
Label L; |
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248 |
__ cbnz(temp(), L); |
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__ mov(r0, zr); |
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__ bind(L); |
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__ str(r0, Address(to(), _stack_offset)); |
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_stack_offset += wordSize; |
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_num_int_args++; |
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break; |
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} |
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256 |
} |
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257 |
} |
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258 |
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259 |
void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { |
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260 |
// generate code to handle arguments |
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iterate(fingerprint); |
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262 |
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263 |
// set the call format |
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// n.b. allow extra 1 for the JNI_Env in c_rarg0 |
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unsigned int call_format = ((_num_int_args + 1) << 6) | (_num_fp_args << 2); |
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266 |
||
267 |
switch (method()->result_type()) { |
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268 |
case T_VOID: |
|
269 |
call_format |= MacroAssembler::ret_type_void; |
|
270 |
break; |
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271 |
case T_FLOAT: |
|
272 |
call_format |= MacroAssembler::ret_type_float; |
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273 |
break; |
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274 |
case T_DOUBLE: |
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275 |
call_format |= MacroAssembler::ret_type_double; |
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276 |
break; |
|
277 |
default: |
|
278 |
call_format |= MacroAssembler::ret_type_integral; |
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279 |
break; |
|
280 |
} |
|
281 |
||
282 |
// // store the call format in the method |
|
283 |
// __ movw(r0, call_format); |
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284 |
// __ str(r0, Address(rmethod, Method::call_format_offset())); |
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285 |
||
286 |
// return result handler |
|
287 |
__ lea(r0, ExternalAddress(Interpreter::result_handler(method()->result_type()))); |
|
288 |
__ ret(lr); |
|
289 |
||
290 |
__ flush(); |
|
291 |
} |
|
292 |
||
293 |
||
294 |
// Implementation of SignatureHandlerLibrary |
|
295 |
||
296 |
void SignatureHandlerLibrary::pd_set_handler(address handler) {} |
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297 |
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298 |
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299 |
class SlowSignatureHandler |
|
300 |
: public NativeSignatureIterator { |
|
301 |
private: |
|
302 |
address _from; |
|
303 |
intptr_t* _to; |
|
304 |
intptr_t* _int_args; |
|
305 |
intptr_t* _fp_args; |
|
306 |
intptr_t* _fp_identifiers; |
|
307 |
unsigned int _num_int_args; |
|
308 |
unsigned int _num_fp_args; |
|
309 |
||
310 |
virtual void pass_int() |
|
311 |
{ |
|
312 |
jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
|
313 |
_from -= Interpreter::stackElementSize; |
|
314 |
||
315 |
if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
|
316 |
*_int_args++ = from_obj; |
|
317 |
_num_int_args++; |
|
318 |
} else { |
|
319 |
*_to++ = from_obj; |
|
320 |
_num_int_args++; |
|
321 |
} |
|
322 |
} |
|
323 |
||
324 |
virtual void pass_long() |
|
325 |
{ |
|
326 |
intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
|
327 |
_from -= 2*Interpreter::stackElementSize; |
|
328 |
||
329 |
if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
|
330 |
*_int_args++ = from_obj; |
|
331 |
_num_int_args++; |
|
332 |
} else { |
|
333 |
*_to++ = from_obj; |
|
334 |
_num_int_args++; |
|
335 |
} |
|
336 |
} |
|
337 |
||
338 |
virtual void pass_object() |
|
339 |
{ |
|
340 |
intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
|
341 |
_from -= Interpreter::stackElementSize; |
|
342 |
||
343 |
if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
|
344 |
*_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr; |
|
345 |
_num_int_args++; |
|
346 |
} else { |
|
347 |
*_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
|
348 |
_num_int_args++; |
|
349 |
} |
|
350 |
} |
|
351 |
||
352 |
virtual void pass_float() |
|
353 |
{ |
|
354 |
jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0)); |
|
355 |
_from -= Interpreter::stackElementSize; |
|
356 |
||
357 |
if (_num_fp_args < Argument::n_float_register_parameters_c) { |
|
358 |
*_fp_args++ = from_obj; |
|
359 |
_num_fp_args++; |
|
360 |
} else { |
|
361 |
*_to++ = from_obj; |
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362 |
_num_fp_args++; |
29183 | 363 |
} |
364 |
} |
|
365 |
||
366 |
virtual void pass_double() |
|
367 |
{ |
|
368 |
intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
|
369 |
_from -= 2*Interpreter::stackElementSize; |
|
370 |
||
371 |
if (_num_fp_args < Argument::n_float_register_parameters_c) { |
|
372 |
*_fp_args++ = from_obj; |
|
373 |
*_fp_identifiers |= (1 << _num_fp_args); // mark as double |
|
374 |
_num_fp_args++; |
|
375 |
} else { |
|
376 |
*_to++ = from_obj; |
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377 |
_num_fp_args++; |
29183 | 378 |
} |
379 |
} |
|
380 |
||
381 |
public: |
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382 |
SlowSignatureHandler(const methodHandle& method, address from, intptr_t* to) |
29183 | 383 |
: NativeSignatureIterator(method) |
384 |
{ |
|
385 |
_from = from; |
|
386 |
_to = to; |
|
387 |
||
388 |
_int_args = to - (method->is_static() ? 16 : 17); |
|
389 |
_fp_args = to - 8; |
|
390 |
_fp_identifiers = to - 9; |
|
391 |
*(int*) _fp_identifiers = 0; |
|
392 |
_num_int_args = (method->is_static() ? 1 : 0); |
|
393 |
_num_fp_args = 0; |
|
394 |
} |
|
395 |
||
396 |
// n.b. allow extra 1 for the JNI_Env in c_rarg0 |
|
397 |
unsigned int get_call_format() |
|
398 |
{ |
|
399 |
unsigned int call_format = ((_num_int_args + 1) << 6) | (_num_fp_args << 2); |
|
400 |
||
401 |
switch (method()->result_type()) { |
|
402 |
case T_VOID: |
|
403 |
call_format |= MacroAssembler::ret_type_void; |
|
404 |
break; |
|
405 |
case T_FLOAT: |
|
406 |
call_format |= MacroAssembler::ret_type_float; |
|
407 |
break; |
|
408 |
case T_DOUBLE: |
|
409 |
call_format |= MacroAssembler::ret_type_double; |
|
410 |
break; |
|
411 |
default: |
|
412 |
call_format |= MacroAssembler::ret_type_integral; |
|
413 |
break; |
|
414 |
} |
|
415 |
||
416 |
return call_format; |
|
417 |
} |
|
418 |
}; |
|
419 |
||
420 |
||
421 |
IRT_ENTRY(address, |
|
422 |
InterpreterRuntime::slow_signature_handler(JavaThread* thread, |
|
423 |
Method* method, |
|
424 |
intptr_t* from, |
|
425 |
intptr_t* to)) |
|
426 |
methodHandle m(thread, (Method*)method); |
|
427 |
assert(m->is_native(), "sanity check"); |
|
428 |
||
429 |
// handle arguments |
|
430 |
SlowSignatureHandler ssh(m, (address)from, to); |
|
431 |
ssh.iterate(UCONST64(-1)); |
|
432 |
||
433 |
// // set the call format |
|
434 |
// method->set_call_format(ssh.get_call_format()); |
|
435 |
||
436 |
// return result handler |
|
437 |
return Interpreter::result_handler(m->result_type()); |
|
438 |
IRT_END |