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_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP
  26 #define CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP
  27 
  28 #include "asm/macroAssembler.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "oops/access.hpp"
  31 
  32 class InterpreterMacroAssembler;
  33 
  34 class BarrierSetAssembler: public CHeapObj<mtGC> {
  35 private:
  36   void incr_allocated_bytes(MacroAssembler* masm, Register thread,
  37                             Register var_size_in_bytes,
  38                             int con_size_in_bytes,
  39                             Register t1);
  40 
  41 public:
  42   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  43                                   Register src, Register dst, Register count) {}
  44   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  45                                   Register src, Register dst, Register count) {}
  46 
  47   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  48                        Register dst, Address src, Register tmp1, Register tmp_thread);
  49   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  50                         Address dst, Register val, Register tmp1, Register tmp2);
  51 
  52 #ifndef _LP64
  53   virtual void obj_equals(MacroAssembler* masm,
  54                           Address obj1, jobject obj2);
  55   virtual void obj_equals(MacroAssembler* masm,
  56                           Register obj1, jobject obj2);
  57 #endif
  58 
  59   virtual void obj_equals(MacroAssembler* masm,
  60                           Register obj1, Register obj2);
  61   virtual void obj_equals(MacroAssembler* masm,
  62                           Register obj1, Address obj2);
  63 
  64   // Support for jniFastGetField to try resolving a jobject/jweak in native
  65   virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
  66                                              Register obj, Register tmp, Label& slowpath);
  67 
  68   virtual void tlab_allocate(MacroAssembler* masm,
  69                              Register thread, Register obj,
  70                              Register var_size_in_bytes,
  71                              int con_size_in_bytes,
  72                              Register t1, Register t2,
  73                              Label& slow_case);
  74   virtual void eden_allocate(MacroAssembler* masm,
  75                              Register thread, Register obj,
  76                              Register var_size_in_bytes,
  77                              int con_size_in_bytes,
  78                              Register t1,
  79                              Label& slow_case);
  80 
  81   virtual void barrier_stubs_init() {}
  82 };
  83 
  84 #endif // CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP