1 /* |
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2 * Copyright (c) 1997, 2014, 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 CC_INTERP |
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26 protected: |
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27 // Interpreter specific version of call_VM_base |
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28 virtual void call_VM_leaf_base( |
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29 address entry_point, |
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30 int number_of_arguments |
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31 ); |
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32 |
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33 virtual void call_VM_base( |
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34 Register oop_result, |
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35 Register java_thread, |
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36 Register last_java_sp, |
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37 address entry_point, |
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38 int number_of_arguments, |
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39 bool check_exceptions |
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40 ); |
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41 |
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42 virtual void check_and_handle_popframe(Register java_thread); |
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43 virtual void check_and_handle_earlyret(Register java_thread); |
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44 |
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45 // base routine for all dispatches |
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46 void dispatch_base(TosState state, address* table, bool verifyoop = true); |
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47 #endif /* CC_INTERP */ |
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48 |
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49 public: |
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50 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(rdi), _bcp_register(rsi) {} |
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51 |
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52 void load_earlyret_value(TosState state); |
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53 |
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54 // Interpreter-specific registers |
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55 #ifdef CC_INTERP |
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56 void save_bcp() { /* not needed in c++ interpreter and harmless */ } |
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57 void restore_bcp() { /* not needed in c++ interpreter and harmless */ } |
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58 |
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59 // Helpers for runtime call arguments/results |
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60 void get_method(Register reg); |
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61 |
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62 #else |
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63 |
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64 void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcp_offset * wordSize), rsi); } |
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65 void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcp_offset * wordSize)); } |
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66 void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } |
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67 |
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68 // Helpers for runtime call arguments/results |
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69 void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } |
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70 void get_const(Register reg) { get_method(reg); movptr(reg, Address(reg, Method::const_offset())); } |
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71 void get_constant_pool(Register reg) { get_const(reg); movptr(reg, Address(reg, ConstMethod::constants_offset())); } |
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72 void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes())); } |
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73 void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes())); |
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74 } |
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75 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); |
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76 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
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77 void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2)); |
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78 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); |
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79 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
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80 |
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81 // load cpool->resolved_references(index); |
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82 void load_resolved_reference_at_index(Register result, Register index); |
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83 |
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84 // Expression stack |
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85 void f2ieee(); // truncate ftos to 32bits |
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86 void d2ieee(); // truncate dtos to 64bits |
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87 |
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88 void pop_ptr(Register r = rax); |
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89 void pop_i(Register r = rax); |
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90 void pop_l(Register lo = rax, Register hi = rdx); |
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91 void pop_f(); |
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92 void pop_d(); |
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93 |
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94 void push_ptr(Register r = rax); |
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95 void push_i(Register r = rax); |
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96 void push_l(Register lo = rax, Register hi = rdx); |
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97 void push_d(Register r = rax); |
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98 void push_f(); |
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99 |
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100 void pop(TosState state); // transition vtos -> state |
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101 void push(TosState state); // transition state -> vtos |
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102 |
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103 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
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104 |
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105 void push(Register r ) { ((MacroAssembler*)this)->push(r); } |
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106 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } |
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107 |
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108 // These are dummies to prevent surprise implicit conversions to Register |
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109 void pop(void* v ); // Add unimplemented ambiguous method |
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110 void push(void* v ); // Add unimplemented ambiguous method |
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111 |
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112 void empty_expression_stack() { |
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113 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
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114 // NULL last_sp until next java call |
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115 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
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116 } |
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117 |
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118 // Helpers for swap and dup |
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119 void load_ptr(int n, Register val); |
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120 void store_ptr(int n, Register val); |
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121 |
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122 // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
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123 // a subtype of super_klass. EAX holds the super_klass. Blows ECX |
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124 // and EDI. Register sub_klass cannot be any of the above. |
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125 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); |
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126 |
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127 // Dispatching |
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128 void dispatch_prolog(TosState state, int step = 0); |
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129 void dispatch_epilog(TosState state, int step = 0); |
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130 void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) |
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131 void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) |
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132 void dispatch_only_noverify(TosState state); |
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133 void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, |
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134 void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table |
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135 |
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136 |
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137 // jump to an invoked target |
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138 void prepare_to_jump_from_interpreted(); |
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139 void jump_from_interpreted(Register method, Register temp); |
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140 |
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141 // Returning from interpreted functions |
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142 // |
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143 // Removes the current activation (incl. unlocking of monitors) |
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144 // and sets up the return address. This code is also used for |
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145 // exception unwindwing. In that case, we do not want to throw |
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146 // IllegalMonitorStateExceptions, since that might get us into an |
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147 // infinite rethrow exception loop. |
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148 // Additionally this code is used for popFrame and earlyReturn. |
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149 // In popFrame case we want to skip throwing an exception, |
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150 // installing an exception, and notifying jvmdi. |
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151 // In earlyReturn case we only want to skip throwing an exception |
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152 // and installing an exception. |
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153 void remove_activation(TosState state, Register ret_addr, |
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154 bool throw_monitor_exception = true, |
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155 bool install_monitor_exception = true, |
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156 bool notify_jvmdi = true); |
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157 #endif /* !CC_INTERP */ |
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158 void get_method_counters(Register method, Register mcs, Label& skip); |
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159 |
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160 // Debugging |
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161 void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos |
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162 #ifndef CC_INTERP |
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163 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) |
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164 |
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165 #endif /* !CC_INTERP */ |
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166 |
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167 // Object locking |
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168 void lock_object (Register lock_reg); |
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169 void unlock_object(Register lock_reg); |
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170 |
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171 #ifndef CC_INTERP |
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172 |
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173 // Interpreter profiling operations |
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174 void set_method_data_pointer_for_bcp(); |
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175 void test_method_data_pointer(Register mdp, Label& zero_continue); |
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176 void verify_method_data_pointer(); |
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177 |
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178 void set_mdp_data_at(Register mdp_in, int constant, Register value); |
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179 void increment_mdp_data_at(Address data, bool decrement = false); |
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180 void increment_mdp_data_at(Register mdp_in, int constant, |
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181 bool decrement = false); |
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182 void increment_mdp_data_at(Register mdp_in, Register reg, int constant, |
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183 bool decrement = false); |
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184 void increment_mask_and_jump(Address counter_addr, |
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185 int increment, Address mask, |
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186 Register scratch, bool preloaded, |
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187 Condition cond, Label* where); |
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188 void set_mdp_flag_at(Register mdp_in, int flag_constant); |
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189 void test_mdp_data_at(Register mdp_in, int offset, Register value, |
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190 Register test_value_out, |
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191 Label& not_equal_continue); |
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192 |
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193 void record_klass_in_profile(Register receiver, Register mdp, |
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194 Register reg2, bool is_virtual_call); |
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195 void record_klass_in_profile_helper(Register receiver, Register mdp, |
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196 Register reg2, int start_row, |
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197 Label& done, bool is_virtual_call); |
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198 |
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199 void update_mdp_by_offset(Register mdp_in, int offset_of_offset); |
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200 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); |
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201 void update_mdp_by_constant(Register mdp_in, int constant); |
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202 void update_mdp_for_ret(Register return_bci); |
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203 |
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204 void profile_taken_branch(Register mdp, Register bumped_count); |
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205 void profile_not_taken_branch(Register mdp); |
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206 void profile_call(Register mdp); |
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207 void profile_final_call(Register mdp); |
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208 void profile_virtual_call(Register receiver, Register mdp, Register scratch2, |
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209 bool receiver_can_be_null = false); |
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210 void profile_ret(Register return_bci, Register mdp); |
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211 void profile_null_seen(Register mdp); |
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212 void profile_typecheck(Register mdp, Register klass, Register scratch); |
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213 void profile_typecheck_failed(Register mdp); |
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214 void profile_switch_default(Register mdp); |
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215 void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); |
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216 |
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217 #endif /* !CC_INTERP */ |
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218 |
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219 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; |
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220 |
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221 // support for jvmti |
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222 void notify_method_entry(); |
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223 void notify_method_exit(TosState state, NotifyMethodExitMode mode); |
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