| /* |
| * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "asm/assembler.hpp" |
| #include "assembler_arm.inline.hpp" |
| #include "code/icBuffer.hpp" |
| #include "gc/shared/collectedHeap.inline.hpp" |
| #include "interpreter/bytecodes.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "nativeInst_arm.hpp" |
| #include "oops/oop.inline.hpp" |
| |
| #define __ masm-> |
| |
| int InlineCacheBuffer::ic_stub_code_size() { |
| return (AARCH64_ONLY(8) NOT_AARCH64(4)) * Assembler::InstructionSize; |
| } |
| |
| void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, void* cached_value, address entry_point) { |
| ResourceMark rm; |
| CodeBuffer code(code_begin, ic_stub_code_size()); |
| MacroAssembler* masm = new MacroAssembler(&code); |
| |
| InlinedAddress oop_literal((address) cached_value); |
| __ ldr_literal(Ricklass, oop_literal); |
| // FIXME: OK to remove reloc here? |
| __ patchable_jump(entry_point, relocInfo::runtime_call_type, Rtemp); |
| __ bind_literal(oop_literal); |
| __ flush(); |
| } |
| |
| address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) { |
| address jump_address; |
| jump_address = code_begin + NativeInstruction::instruction_size; |
| NativeJump* jump = nativeJump_at(jump_address); |
| return jump->jump_destination(); |
| } |
| |
| void* InlineCacheBuffer::ic_buffer_cached_value(address code_begin) { |
| NativeMovConstReg* move = nativeMovConstReg_at(code_begin); |
| return (void*)move->data(); |
| } |
| |
| #undef __ |