annotate src/share/vm/oops/methodKlass.cpp @ 6275:957c266d8bc5

Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Tue, 21 Aug 2012 10:39:19 +0200
parents af59b4dfc9e4 1d7922586cf6
children
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1 /*
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2 * Copyright (c) 1997, 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 #include "precompiled.hpp"
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26 #include "classfile/javaClasses.hpp"
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27 #include "gc_implementation/shared/markSweep.inline.hpp"
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28 #include "gc_interface/collectedHeap.inline.hpp"
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29 #include "interpreter/interpreter.hpp"
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30 #include "memory/gcLocker.hpp"
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31 #include "memory/resourceArea.hpp"
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32 #include "memory/universe.inline.hpp"
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33 #include "oops/constMethodKlass.hpp"
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34 #include "oops/klassOop.hpp"
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35 #include "oops/methodDataOop.hpp"
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36 #include "oops/methodKlass.hpp"
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37 #include "oops/oop.inline.hpp"
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38 #include "oops/oop.inline2.hpp"
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39 #include "oops/symbol.hpp"
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40 #include "runtime/handles.inline.hpp"
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41 #ifndef SERIALGC
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42 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
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43 #include "oops/oop.pcgc.inline.hpp"
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44 #endif
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45
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46 klassOop methodKlass::create_klass(TRAPS) {
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47 methodKlass o;
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48 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
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49 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
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50 // Make sure size calculation is right
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51 assert(k()->size() == align_object_size(header_size()), "wrong size for object");
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52 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
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53 return k();
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54 }
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55
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56
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57 int methodKlass::oop_size(oop obj) const {
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58 assert(obj->is_method(), "must be method oop");
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59 return methodOop(obj)->object_size();
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60 }
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61
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62
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63 bool methodKlass::oop_is_parsable(oop obj) const {
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64 assert(obj->is_method(), "must be method oop");
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65 return methodOop(obj)->object_is_parsable();
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66 }
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67
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68
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69 methodOop methodKlass::allocate(constMethodHandle xconst,
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70 AccessFlags access_flags, TRAPS) {
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71 int size = methodOopDesc::object_size(access_flags.is_native());
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72 KlassHandle h_k(THREAD, as_klassOop());
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73 assert(xconst()->is_parsable(), "possible publication protocol violation");
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74 methodOop m = (methodOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL);
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75 assert(!m->is_parsable(), "not expecting parsability yet.");
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76
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77 No_Safepoint_Verifier no_safepoint; // until m becomes parsable below
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78 m->set_constMethod(xconst());
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79 m->set_access_flags(access_flags);
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80 m->set_method_size(size);
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81 m->set_name_index(0);
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82 m->set_signature_index(0);
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83 #ifdef CC_INTERP
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84 m->set_result_index(T_VOID);
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85 #endif
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86 m->set_constants(NULL);
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87 m->set_max_stack(0);
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88 m->set_max_locals(0);
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89 m->set_intrinsic_id(vmIntrinsics::_none);
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90 m->set_jfr_towrite(false);
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91 m->set_method_data(NULL);
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92 m->set_interpreter_throwout_count(0);
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93 m->set_vtable_index(methodOopDesc::garbage_vtable_index);
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94
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95 // Fix and bury in methodOop
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96 m->set_interpreter_entry(NULL); // sets i2i entry and from_int
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97 m->set_adapter_entry(NULL);
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98 m->clear_code(); // from_c/from_i get set to c2i/i2i
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99
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100 if (access_flags.is_native()) {
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101 m->clear_native_function();
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102 m->set_signature_handler(NULL);
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103 }
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104
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105 NOT_PRODUCT(m->set_compiled_invocation_count(0);)
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106 m->set_interpreter_invocation_count(0);
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107 m->invocation_counter()->init();
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108 m->backedge_counter()->init();
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109 m->clear_number_of_breakpoints();
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110 #ifdef GRAAL
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111 m->set_graal_mirror(NULL);
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112 m->set_graal_invocation_time(0);
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113 m->set_graal_priority(1000000);
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114 #endif
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115
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116 #ifdef TIERED
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117 m->set_rate(0);
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118 m->set_prev_event_count(0);
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119 m->set_prev_time(0);
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120 #endif
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121
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122 assert(m->is_parsable(), "must be parsable here.");
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123 assert(m->size() == size, "wrong size for object");
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124 return m;
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125 }
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126
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127
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128 void methodKlass::oop_follow_contents(oop obj) {
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129 assert (obj->is_method(), "object must be method");
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130 methodOop m = methodOop(obj);
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131 // Performance tweak: We skip iterating over the klass pointer since we
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132 // know that Universe::methodKlassObj never moves.
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133 MarkSweep::mark_and_push(m->adr_constMethod());
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134 #ifdef GRAAL
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135 MarkSweep::mark_and_push(m->adr_graal_mirror());
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136 #endif
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137 MarkSweep::mark_and_push(m->adr_method_data());
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138 }
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139
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140 #ifndef SERIALGC
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141 void methodKlass::oop_follow_contents(ParCompactionManager* cm,
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142 oop obj) {
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143 assert (obj->is_method(), "object must be method");
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144 methodOop m = methodOop(obj);
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145 // Performance tweak: We skip iterating over the klass pointer since we
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146 // know that Universe::methodKlassObj never moves.
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147 PSParallelCompact::mark_and_push(cm, m->adr_constMethod());
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148 #ifdef GRAAL
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149 PSParallelCompact::mark_and_push(cm, m->adr_graal_mirror());
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150 #endif
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151 PSParallelCompact::mark_and_push(cm, m->adr_method_data());
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152 }
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153 #endif // SERIALGC
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154
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155 int methodKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
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156 assert (obj->is_method(), "object must be method");
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157 methodOop m = methodOop(obj);
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158 // Get size before changing pointers.
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159 // Don't call size() or oop_size() since that is a virtual call.
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160 int size = m->object_size();
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161 // Performance tweak: We skip iterating over the klass pointer since we
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162 // know that Universe::methodKlassObj never moves
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163 blk->do_oop(m->adr_constMethod());
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164 #ifdef GRAAL
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165 blk->do_oop(m->adr_graal_mirror());
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166 #endif
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167 blk->do_oop(m->adr_method_data());
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168
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169 return size;
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170 }
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171
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172
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173 int methodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
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174 assert (obj->is_method(), "object must be method");
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175 methodOop m = methodOop(obj);
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176 // Get size before changing pointers.
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177 // Don't call size() or oop_size() since that is a virtual call.
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178 int size = m->object_size();
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179 // Performance tweak: We skip iterating over the klass pointer since we
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180 // know that Universe::methodKlassObj never moves.
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181 oop* adr;
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182 adr = m->adr_constMethod();
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183 if (mr.contains(adr)) blk->do_oop(adr);
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184 #ifdef GRAAL
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185 adr = m->adr_graal_mirror();
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186 if (mr.contains(adr)) blk->do_oop(adr);
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187 #endif
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188 adr = m->adr_method_data();
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189 if (mr.contains(adr)) blk->do_oop(adr);
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190
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191 return size;
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192 }
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193
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194
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195 int methodKlass::oop_adjust_pointers(oop obj) {
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196 assert(obj->is_method(), "should be method");
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197 methodOop m = methodOop(obj);
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198 // Get size before changing pointers.
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199 // Don't call size() or oop_size() since that is a virtual call.
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200 int size = m->object_size();
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201 // Performance tweak: We skip iterating over the klass pointer since we
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202 // know that Universe::methodKlassObj never moves.
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203 MarkSweep::adjust_pointer(m->adr_constMethod());
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204 #ifdef GRAAL
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205 MarkSweep::adjust_pointer(m->adr_graal_mirror());
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206 #endif
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207 MarkSweep::adjust_pointer(m->adr_method_data());
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208
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209 return size;
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210 }
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211
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212 #ifndef SERIALGC
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213 void methodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
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214 assert(obj->is_method(), "should be method");
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215 methodOop m = methodOop(obj);
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216 #ifdef GRAAL
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217 oop* adr = m->adr_graal_mirror();
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218 if(PSScavenge::should_scavenge(adr)) {
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219 pm->claim_or_forward_depth(adr);
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220 }
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221 #endif
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222 }
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223
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224 int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
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225 assert(obj->is_method(), "should be method");
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226 methodOop m = methodOop(obj);
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227 PSParallelCompact::adjust_pointer(m->adr_constMethod());
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228 #ifdef GRAAL
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229 PSParallelCompact::adjust_pointer(m->adr_graal_mirror());
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230 #endif
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231 PSParallelCompact::adjust_pointer(m->adr_method_data());
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232 return m->object_size();
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233 }
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234 #endif // SERIALGC
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235
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236 #ifndef PRODUCT
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237
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238 // Printing
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239
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240 void methodKlass::oop_print_on(oop obj, outputStream* st) {
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241 ResourceMark rm;
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242 assert(obj->is_method(), "must be method");
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243 Klass::oop_print_on(obj, st);
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244 methodOop m = methodOop(obj);
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245 // get the effect of PrintOopAddress, always, for methods:
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246 st->print_cr(" - this oop: "INTPTR_FORMAT, (intptr_t)m);
0
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247 st->print (" - method holder: "); m->method_holder()->print_value_on(st); st->cr();
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248 st->print (" - constants: "INTPTR_FORMAT" ", (address)m->constants());
0
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249 m->constants()->print_value_on(st); st->cr();
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250 st->print (" - access: 0x%x ", m->access_flags().as_int()); m->access_flags().print_on(st); st->cr();
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251 st->print (" - name: "); m->name()->print_value_on(st); st->cr();
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252 st->print (" - signature: "); m->signature()->print_value_on(st); st->cr();
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253 st->print_cr(" - max stack: %d", m->max_stack());
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254 st->print_cr(" - max locals: %d", m->max_locals());
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255 st->print_cr(" - size of params: %d", m->size_of_parameters());
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256 st->print_cr(" - method size: %d", m->method_size());
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257 if (m->intrinsic_id() != vmIntrinsics::_none)
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258 st->print_cr(" - intrinsic id: %d %s", m->intrinsic_id(), vmIntrinsics::name_at(m->intrinsic_id()));
1783
d5d065957597 6953144: Tiered compilation
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diff changeset
259 if (m->highest_comp_level() != CompLevel_none)
d5d065957597 6953144: Tiered compilation
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260 st->print_cr(" - highest level: %d", m->highest_comp_level());
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261 st->print_cr(" - vtable index: %d", m->_vtable_index);
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262 st->print_cr(" - i2i entry: " INTPTR_FORMAT, m->interpreter_entry());
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263 st->print( " - adapters: ");
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264 if (m->adapter() == NULL)
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265 st->print_cr(INTPTR_FORMAT, m->adapter());
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266 else
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267 m->adapter()->print_adapter_on(st);
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268 st->print_cr(" - compiled entry " INTPTR_FORMAT, m->from_compiled_entry());
0
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269 st->print_cr(" - code size: %d", m->code_size());
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270 if (m->code_size() != 0) {
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271 st->print_cr(" - code start: " INTPTR_FORMAT, m->code_base());
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272 st->print_cr(" - code end (excl): " INTPTR_FORMAT, m->code_base() + m->code_size());
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273 }
0
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274 if (m->method_data() != NULL) {
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275 st->print_cr(" - method data: " INTPTR_FORMAT, (address)m->method_data());
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276 }
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277 st->print_cr(" - checked ex length: %d", m->checked_exceptions_length());
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278 if (m->checked_exceptions_length() > 0) {
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279 CheckedExceptionElement* table = m->checked_exceptions_start();
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280 st->print_cr(" - checked ex start: " INTPTR_FORMAT, table);
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281 if (Verbose) {
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282 for (int i = 0; i < m->checked_exceptions_length(); i++) {
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283 st->print_cr(" - throws %s", m->constants()->printable_name_at(table[i].class_cp_index));
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284 }
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285 }
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286 }
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287 if (m->has_linenumber_table()) {
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288 u_char* table = m->compressed_linenumber_table();
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289 st->print_cr(" - linenumber start: " INTPTR_FORMAT, table);
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290 if (Verbose) {
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291 CompressedLineNumberReadStream stream(table);
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292 while (stream.read_pair()) {
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293 st->print_cr(" - line %d: %d", stream.line(), stream.bci());
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294 }
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295 }
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296 }
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297 st->print_cr(" - localvar length: %d", m->localvariable_table_length());
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298 if (m->localvariable_table_length() > 0) {
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299 LocalVariableTableElement* table = m->localvariable_table_start();
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300 st->print_cr(" - localvar start: " INTPTR_FORMAT, table);
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301 if (Verbose) {
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302 for (int i = 0; i < m->localvariable_table_length(); i++) {
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diff changeset
303 int bci = table[i].start_bci;
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diff changeset
304 int len = table[i].length;
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305 const char* name = m->constants()->printable_name_at(table[i].name_cp_index);
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306 const char* desc = m->constants()->printable_name_at(table[i].descriptor_cp_index);
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307 int slot = table[i].slot;
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308 st->print_cr(" - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot);
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309 }
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310 }
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311 }
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312 if (m->code() != NULL) {
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313 st->print (" - compiled code: ");
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314 m->code()->print_value_on(st);
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315 }
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diff changeset
316 if (m->is_native()) {
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317 st->print_cr(" - native function: " INTPTR_FORMAT, m->native_function());
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diff changeset
318 st->print_cr(" - signature handler: " INTPTR_FORMAT, m->signature_handler());
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diff changeset
319 }
0
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320 }
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321
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diff changeset
322 #endif //PRODUCT
0
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323
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324 void methodKlass::oop_print_value_on(oop obj, outputStream* st) {
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325 assert(obj->is_method(), "must be method");
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diff changeset
326 Klass::oop_print_value_on(obj, st);
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327 methodOop m = methodOop(obj);
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328 st->print(" ");
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329 m->name()->print_value_on(st);
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330 st->print(" ");
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331 m->signature()->print_value_on(st);
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332 st->print(" in ");
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diff changeset
333 m->method_holder()->print_value_on(st);
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334 if (WizardMode) st->print("[%d,%d]", m->size_of_parameters(), m->max_locals());
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diff changeset
335 if (WizardMode && m->code() != NULL) st->print(" ((nmethod*)%p)", m->code());
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336 }
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337
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338 const char* methodKlass::internal_name() const {
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339 return "{method}";
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340 }
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341
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342
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343 // Verification
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344
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diff changeset
345 void methodKlass::oop_verify_on(oop obj, outputStream* st) {
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346 Klass::oop_verify_on(obj, st);
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347 guarantee(obj->is_method(), "object must be method");
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diff changeset
348 if (!obj->partially_loaded()) {
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diff changeset
349 methodOop m = methodOop(obj);
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350 guarantee(m->is_perm(), "should be in permspace");
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diff changeset
351 guarantee(m->constMethod()->is_constMethod(), "should be constMethodOop");
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diff changeset
352 guarantee(m->constMethod()->is_perm(), "should be in permspace");
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353 methodDataOop method_data = m->method_data();
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354 guarantee(method_data == NULL ||
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diff changeset
355 method_data->is_perm(), "should be in permspace");
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356 guarantee(method_data == NULL ||
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diff changeset
357 method_data->is_methodData(), "should be method data");
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358 }
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359 }
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360
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diff changeset
361 bool methodKlass::oop_partially_loaded(oop obj) const {
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362 assert(obj->is_method(), "object must be method");
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363 methodOop m = methodOop(obj);
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364 constMethodOop xconst = m->constMethod();
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365 assert(xconst != NULL, "const method must be set");
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366 constMethodKlass* ck = constMethodKlass::cast(xconst->klass());
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367 return ck->oop_partially_loaded(xconst);
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368 }
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369
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370
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diff changeset
371 void methodKlass::oop_set_partially_loaded(oop obj) {
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diff changeset
372 assert(obj->is_method(), "object must be method");
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373 methodOop m = methodOop(obj);
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374 constMethodOop xconst = m->constMethod();
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375 assert(xconst != NULL, "const method must be set");
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376 constMethodKlass* ck = constMethodKlass::cast(xconst->klass());
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377 ck->oop_set_partially_loaded(xconst);
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378 }