annotate src/cpu/ppc/vm/frame_ppc.inline.hpp @ 14726:92aa6797d639

Backed out merge changeset: b51e29501f30 Backed out merge revision to its first parent (8f483e200405)
author Doug Simon <doug.simon@oracle.com>
date Mon, 24 Mar 2014 21:30:43 +0100
parents 58cf34613a72
children
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1 /*
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2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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26 #ifndef CPU_PPC_VM_FRAME_PPC_INLINE_HPP
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27 #define CPU_PPC_VM_FRAME_PPC_INLINE_HPP
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28
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29 #ifndef CC_INTERP
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30 #error "CC_INTERP must be defined on PPC64"
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31 #endif
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32
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33 // Inline functions for ppc64 frames:
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34
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35 // Find codeblob and set deopt_state.
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36 inline void frame::find_codeblob_and_set_pc_and_deopt_state(address pc) {
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37 assert(pc != NULL, "precondition: must have PC");
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38
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39 _cb = CodeCache::find_blob(pc);
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40 _pc = pc; // Must be set for get_deopt_original_pc()
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41
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42 _fp = (intptr_t*)own_abi()->callers_sp;
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43 // Use _fp - frame_size, needs to be done between _cb and _pc initialization
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44 // and get_deopt_original_pc.
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45 adjust_unextended_sp();
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46
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47 address original_pc = nmethod::get_deopt_original_pc(this);
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48 if (original_pc != NULL) {
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49 _pc = original_pc;
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50 _deopt_state = is_deoptimized;
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51 } else {
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52 _deopt_state = not_deoptimized;
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53 }
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54
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55 assert(((uint64_t)_sp & 0xf) == 0, "SP must be 16-byte aligned");
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56 }
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57
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58 // Constructors
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59
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60 // Initialize all fields, _unextended_sp will be adjusted in find_codeblob_and_set_pc_and_deopt_state.
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61 inline frame::frame() : _sp(NULL), _unextended_sp(NULL), _fp(NULL), _cb(NULL), _pc(NULL), _deopt_state(unknown) {}
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62
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63 inline frame::frame(intptr_t* sp) : _sp(sp), _unextended_sp(sp) {
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64 find_codeblob_and_set_pc_and_deopt_state((address)own_abi()->lr); // also sets _fp and adjusts _unextended_sp
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65 }
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66
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67 inline frame::frame(intptr_t* sp, address pc) : _sp(sp), _unextended_sp(sp) {
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68 find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
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69 }
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70
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71 inline frame::frame(intptr_t* sp, address pc, intptr_t* unextended_sp) : _sp(sp), _unextended_sp(unextended_sp) {
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72 find_codeblob_and_set_pc_and_deopt_state(pc); // also sets _fp and adjusts _unextended_sp
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73 }
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74
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75 // Accessors
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76
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77 // Return unique id for this frame. The id must have a value where we
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78 // can distinguish identity and younger/older relationship. NULL
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79 // represents an invalid (incomparable) frame.
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80 inline intptr_t* frame::id(void) const {
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81 // Use _fp. _sp or _unextended_sp wouldn't be correct due to resizing.
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82 return _fp;
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83 }
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84
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85 // Return true if this frame is older (less recent activation) than
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86 // the frame represented by id.
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87 inline bool frame::is_older(intptr_t* id) const {
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88 assert(this->id() != NULL && id != NULL, "NULL frame id");
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89 // Stack grows towards smaller addresses on ppc64.
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90 return this->id() > id;
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91 }
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92
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93 inline int frame::frame_size(RegisterMap* map) const {
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94 // Stack grows towards smaller addresses on PPC64: sender is at a higher address.
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95 return sender_sp() - sp();
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96 }
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97
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98 // Return the frame's stack pointer before it has been extended by a
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99 // c2i adapter. This is needed by deoptimization for ignoring c2i adapter
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100 // frames.
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101 inline intptr_t* frame::unextended_sp() const {
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102 return _unextended_sp;
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103 }
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104
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105 // All frames have this field.
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106 inline address frame::sender_pc() const {
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107 return (address)callers_abi()->lr;
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108 }
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109 inline address* frame::sender_pc_addr() const {
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110 return (address*)&(callers_abi()->lr);
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111 }
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112
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113 // All frames have this field.
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114 inline intptr_t* frame::sender_sp() const {
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115 return (intptr_t*)callers_abi();
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116 }
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117
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118 // All frames have this field.
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119 inline intptr_t* frame::link() const {
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120 return (intptr_t*)callers_abi()->callers_sp;
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121 }
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122
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123 inline intptr_t* frame::real_fp() const {
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124 return fp();
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125 }
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126
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127 #ifdef CC_INTERP
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128
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129 inline interpreterState frame::get_interpreterState() const {
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130 return (interpreterState)(((address)callers_abi())
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131 - frame::interpreter_frame_cinterpreterstate_size_in_bytes());
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132 }
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133
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134 inline intptr_t** frame::interpreter_frame_locals_addr() const {
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135 interpreterState istate = get_interpreterState();
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136 return (intptr_t**)&istate->_locals;
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137 }
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138
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139 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
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140 interpreterState istate = get_interpreterState();
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141 return (intptr_t*)&istate->_bcp;
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142 }
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143
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144 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
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145 interpreterState istate = get_interpreterState();
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146 return (intptr_t*)&istate->_mdx;
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147 }
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148
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149 inline intptr_t* frame::interpreter_frame_expression_stack() const {
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150 return (intptr_t*)interpreter_frame_monitor_end() - 1;
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151 }
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152
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153 inline jint frame::interpreter_frame_expression_stack_direction() {
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154 return -1;
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155 }
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156
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157 // top of expression stack
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158 inline intptr_t* frame::interpreter_frame_tos_address() const {
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159 interpreterState istate = get_interpreterState();
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160 return istate->_stack + 1;
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161 }
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162
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163 inline intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
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164 return &interpreter_frame_tos_address()[offset];
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165 }
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166
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167 // monitor elements
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168
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169 // in keeping with Intel side: end is lower in memory than begin;
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170 // and beginning element is oldest element
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171 // Also begin is one past last monitor.
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172
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173 inline BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
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174 return get_interpreterState()->monitor_base();
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175 }
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176
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177 inline BasicObjectLock* frame::interpreter_frame_monitor_end() const {
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178 return (BasicObjectLock*)get_interpreterState()->stack_base();
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179 }
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180
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181 inline int frame::interpreter_frame_cinterpreterstate_size_in_bytes() {
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182 // Size of an interpreter object. Not aligned with frame size.
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183 return round_to(sizeof(BytecodeInterpreter), 8);
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184 }
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185
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186 inline Method** frame::interpreter_frame_method_addr() const {
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187 interpreterState istate = get_interpreterState();
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188 return &istate->_method;
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189 }
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190
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191 // Constant pool cache
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192
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193 inline ConstantPoolCache** frame::interpreter_frame_cpoolcache_addr() const {
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194 interpreterState istate = get_interpreterState();
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195 return &istate->_constants; // should really use accessor
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196 }
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197
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198 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
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199 interpreterState istate = get_interpreterState();
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200 return &istate->_constants;
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201 }
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202 #endif // CC_INTERP
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203
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204 inline int frame::interpreter_frame_monitor_size() {
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205 // Number of stack slots for a monitor.
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206 return round_to(BasicObjectLock::size(), // number of stack slots
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207 WordsPerLong); // number of stack slots for a Java long
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208 }
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209
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210 inline int frame::interpreter_frame_monitor_size_in_bytes() {
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211 return frame::interpreter_frame_monitor_size() * wordSize;
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212 }
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213
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214 // entry frames
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215
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216 inline intptr_t* frame::entry_frame_argument_at(int offset) const {
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217 // Since an entry frame always calls the interpreter first, the
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218 // parameters are on the stack and relative to known register in the
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219 // entry frame.
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220 intptr_t* tos = (intptr_t*)get_entry_frame_locals()->arguments_tos_address;
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221 return &tos[offset + 1]; // prepushed tos
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222 }
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223
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224 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {
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225 return (JavaCallWrapper**)&get_entry_frame_locals()->call_wrapper_address;
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226 }
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227
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228 inline oop frame::saved_oop_result(RegisterMap* map) const {
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229 return *((oop*)map->location(R3->as_VMReg()));
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230 }
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231
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232 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
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233 *((oop*)map->location(R3->as_VMReg())) = obj;
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234 }
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235
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236 #endif // CPU_PPC_VM_FRAME_PPC_INLINE_HPP