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annotate src/share/vm/c1/c1_MacroAssembler.hpp @ 14662:3c3953fb3f2a

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8033380: Experimental VM flag to enforce access atomicity Summary: -XX:+AlwaysAtomicAccesses to unconditionally enforce the access atomicity. Reviewed-by: roland, kvn, iveresov
author shade
date Mon, 03 Mar 2014 15:54:45 +0400
parents cd3d6a6b95d9
children 0bf37f737702
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1 /*
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2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_C1_C1_MACROASSEMBLER_HPP
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26 #define SHARE_VM_C1_C1_MACROASSEMBLER_HPP
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27
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28 #include "asm/macroAssembler.hpp"
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29 #include "asm/macroAssembler.inline.hpp"
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30
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31 class CodeEmitInfo;
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32
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33 class C1_MacroAssembler: public MacroAssembler {
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34 public:
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35 // creation
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36 C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); }
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37
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38 //----------------------------------------------------
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39 void explicit_null_check(Register base);
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40
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41 void inline_cache_check(Register receiver, Register iCache);
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42 void build_frame(int frame_size_in_bytes);
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43 void remove_frame(int frame_size_in_bytes);
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44
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45 void unverified_entry(Register receiver, Register ic_klass);
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46 void verified_entry();
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47 void verify_stack_oop(int offset) PRODUCT_RETURN;
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48 void verify_not_null_oop(Register r) PRODUCT_RETURN;
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49
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50 #ifdef TARGET_ARCH_x86
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51 # include "c1_MacroAssembler_x86.hpp"
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52 #endif
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53 #ifdef TARGET_ARCH_sparc
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54 # include "c1_MacroAssembler_sparc.hpp"
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55 #endif
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56 #ifdef TARGET_ARCH_arm
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57 # include "c1_MacroAssembler_arm.hpp"
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58 #endif
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59 #ifdef TARGET_ARCH_ppc
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60 # include "c1_MacroAssembler_ppc.hpp"
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61 #endif
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62
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63 };
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66
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67 // A StubAssembler is a MacroAssembler w/ extra functionality for runtime
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68 // stubs. Currently it 'knows' some stub info. Eventually, the information
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69 // may be set automatically or can be asserted when using specialised
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70 // StubAssembler functions.
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71
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72 class StubAssembler: public C1_MacroAssembler {
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73 private:
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74 const char* _name;
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75 bool _must_gc_arguments;
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76 int _frame_size;
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77 int _num_rt_args;
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78 int _stub_id;
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79
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80 public:
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81 // creation
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82 StubAssembler(CodeBuffer* code, const char * name, int stub_id);
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83 void set_info(const char* name, bool must_gc_arguments);
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84
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85 void set_frame_size(int size);
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86 void set_num_rt_args(int args);
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87
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88 // accessors
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89 const char* name() const { return _name; }
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90 bool must_gc_arguments() const { return _must_gc_arguments; }
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91 int frame_size() const { return _frame_size; }
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92 int num_rt_args() const { return _num_rt_args; }
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93 int stub_id() const { return _stub_id; }
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94
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95 // runtime calls (return offset of call to be used by GC map)
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96 int call_RT(Register oop_result1, Register metadata_result, address entry, int args_size = 0);
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97 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1);
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98 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2);
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99 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3);
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100 };
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101
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102 #endif // SHARE_VM_C1_C1_MACROASSEMBLER_HPP