1 /* 2 * Copyright (c) 2018, 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_ARM_GC_SHARED_BARRIERSETASSEMBLER_ARM_HPP 26 #define CPU_ARM_GC_SHARED_BARRIERSETASSEMBLER_ARM_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "memory/allocation.hpp" 30 #include "oops/access.hpp" 31 32 class BarrierSetAssembler: public CHeapObj<mtGC> { 33 private: 34 void incr_allocated_bytes(MacroAssembler* masm, 35 RegisterOrConstant size_in_bytes, 36 Register tmp 37 ); 38 39 public: 40 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 41 Register addr, Register count, int callee_saved_regs) {} 42 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 43 Register addr, Register count, Register tmp) {} 44 45 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 46 Register dst, Address src, Register tmp1, Register tmp2, Register tmp3); 47 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 48 Address obj, Register new_val, Register tmp1, Register tmp2, Register tmp3, bool is_null); 49 50 virtual void obj_equals(MacroAssembler* masm, 51 Register obj1, Register obj2); 52 53 virtual void eden_allocate(MacroAssembler* masm, 54 Register obj, // result: pointer to object after successful allocation 55 Register obj_end, // result: pointer to end of object after successful allocation 56 Register tmp1, // temp register 57 Register tmp2, // temp register 58 RegisterOrConstant size_expression, // size of object 59 Label& slow_case // continuation point if fast allocation fails 60 ); 61 62 virtual void tlab_allocate(MacroAssembler* masm, 63 Register obj, // result: pointer to object after successful allocation 64 Register obj_end, // result: pointer to end of object after successful allocation 65 Register tmp1, // temp register 66 RegisterOrConstant size_expression, // size of object 67 Label& slow_case // continuation point if fast allocation fails 68 ); 69 70 virtual void barrier_stubs_init() {} 71 72 virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj) { 73 // Default implementation does not need to do anything. 74 } 75 }; 76 77 #endif // CPU_ARM_GC_SHARED_BARRIERSETASSEMBLER_ARM_HPP