1010
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1 /*
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2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * Copyright 2007, 2008, 2009 Red Hat, Inc.
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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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
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22 * have any questions.
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23 *
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24 */
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25
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26 // Constructors
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27
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28 inline frame::frame() {
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29 _sp = NULL;
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30 _fp = NULL;
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31 _pc = NULL;
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32 _cb = NULL;
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33 _deopt_state = unknown;
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34 }
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35
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36 inline frame::frame(intptr_t* sp, intptr_t* fp) {
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37 _sp = sp;
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38 _fp = fp;
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39 switch (zeroframe()->type()) {
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40 case ZeroFrame::ENTRY_FRAME:
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41 _pc = StubRoutines::call_stub_return_pc();
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42 _cb = NULL;
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43 break;
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44
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45 case ZeroFrame::INTERPRETER_FRAME:
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46 _pc = NULL;
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47 _cb = NULL;
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48 break;
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49
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50 case ZeroFrame::SHARK_FRAME:
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51 _pc = zero_sharkframe()->pc();
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52 _cb = CodeCache::find_blob_unsafe(pc());
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53 break;
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54
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55 case ZeroFrame::FAKE_STUB_FRAME:
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56 _pc = NULL;
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57 _cb = NULL;
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58 break;
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59
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60 default:
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61 ShouldNotReachHere();
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62 }
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63 _deopt_state = not_deoptimized;
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64 }
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65
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66 // Accessors
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67
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68 inline intptr_t* frame::sender_sp() const {
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69 return (intptr_t *) zeroframe()->next();
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70 }
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71
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72 inline intptr_t* frame::link() const {
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73 ShouldNotCallThis();
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74 }
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75
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76 #ifdef CC_INTERP
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77 inline interpreterState frame::get_interpreterState() const {
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78 return zero_interpreterframe()->interpreter_state();
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79 }
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80
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81 inline intptr_t** frame::interpreter_frame_locals_addr() const {
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82 return &(get_interpreterState()->_locals);
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83 }
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84
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85 inline intptr_t* frame::interpreter_frame_bcx_addr() const {
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86 return (intptr_t*) &(get_interpreterState()->_bcp);
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87 }
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88
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89 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const {
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90 return &(get_interpreterState()->_constants);
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91 }
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92
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93 inline methodOop* frame::interpreter_frame_method_addr() const {
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94 return &(get_interpreterState()->_method);
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95 }
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96
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97 inline intptr_t* frame::interpreter_frame_mdx_addr() const {
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98 return (intptr_t*) &(get_interpreterState()->_mdx);
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99 }
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100
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101 inline intptr_t* frame::interpreter_frame_tos_address() const {
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102 return get_interpreterState()->_stack + 1;
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103 }
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104 #endif // CC_INTERP
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105
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106 inline int frame::interpreter_frame_monitor_size() {
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107 return BasicObjectLock::size();
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108 }
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109
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110 inline intptr_t* frame::interpreter_frame_expression_stack() const {
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111 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();
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112 return monitor_end - 1;
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113 }
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114
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115 inline jint frame::interpreter_frame_expression_stack_direction() {
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116 return -1;
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117 }
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118
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119 // Return a unique id for this frame. The id must have a value where
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120 // we can distinguish identity and younger/older relationship. NULL
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121 // represents an invalid (incomparable) frame.
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122 inline intptr_t* frame::id() const {
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123 return sp();
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124 }
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125
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126 inline JavaCallWrapper* frame::entry_frame_call_wrapper() const {
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127 return zero_entryframe()->call_wrapper();
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128 }
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129
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130 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
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131 ShouldNotCallThis();
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132 }
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133
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134 inline oop frame::saved_oop_result(RegisterMap* map) const {
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135 ShouldNotCallThis();
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136 }
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137
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138 inline bool frame::is_older(intptr_t* id) const {
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139 ShouldNotCallThis();
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140 }
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141
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142 inline intptr_t* frame::entry_frame_argument_at(int offset) const {
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143 ShouldNotCallThis();
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144 }
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145
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146 inline intptr_t* frame::unextended_sp() const {
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147 if (zeroframe()->is_shark_frame())
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148 return zero_sharkframe()->unextended_sp();
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149 else
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150 return (intptr_t *) -1;
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151 }
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