author | stefank |
Tue, 23 Nov 2010 13:22:55 -0800 | |
changeset 7397 | 5b173b4ca846 |
parent 6453 | 970dc585ab63 |
child 8076 | 96d498ec7ae1 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
1 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
|
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
7397 | 25 |
#include "precompiled.hpp" |
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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#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" |
|
36 |
#include "oops/methodKlass.hpp" |
|
37 |
#include "oops/oop.inline.hpp" |
|
38 |
#include "oops/oop.inline2.hpp" |
|
39 |
#include "oops/symbolOop.hpp" |
|
40 |
#include "runtime/handles.inline.hpp" |
|
1 | 41 |
|
42 |
klassOop methodKlass::create_klass(TRAPS) { |
|
43 |
methodKlass o; |
|
44 |
KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
|
45 |
KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
|
46 |
// Make sure size calculation is right |
|
47 |
assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
|
48 |
java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
|
49 |
return k(); |
|
50 |
} |
|
51 |
||
52 |
||
53 |
int methodKlass::oop_size(oop obj) const { |
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54 |
assert(obj->is_method(), "must be method oop"); |
|
55 |
return methodOop(obj)->object_size(); |
|
56 |
} |
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57 |
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58 |
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59 |
bool methodKlass::oop_is_parsable(oop obj) const { |
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assert(obj->is_method(), "must be method oop"); |
|
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return methodOop(obj)->object_is_parsable(); |
|
62 |
} |
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63 |
||
64 |
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65 |
methodOop methodKlass::allocate(constMethodHandle xconst, |
|
66 |
AccessFlags access_flags, TRAPS) { |
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67 |
int size = methodOopDesc::object_size(access_flags.is_native()); |
|
68 |
KlassHandle h_k(THREAD, as_klassOop()); |
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69 |
assert(xconst()->is_parsable(), "possible publication protocol violation"); |
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70 |
methodOop m = (methodOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); |
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assert(!m->is_parsable(), "not expecting parsability yet."); |
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72 |
||
73 |
No_Safepoint_Verifier no_safepoint; // until m becomes parsable below |
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74 |
m->set_constMethod(xconst()); |
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75 |
m->set_access_flags(access_flags); |
|
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m->set_method_size(size); |
|
77 |
m->set_name_index(0); |
|
78 |
m->set_signature_index(0); |
|
79 |
#ifdef CC_INTERP |
|
80 |
m->set_result_index(T_VOID); |
|
81 |
#endif |
|
82 |
m->set_constants(NULL); |
|
83 |
m->set_max_stack(0); |
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m->set_max_locals(0); |
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m->set_intrinsic_id(vmIntrinsics::_none); |
1 | 86 |
m->set_method_data(NULL); |
87 |
m->set_interpreter_throwout_count(0); |
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m->set_vtable_index(methodOopDesc::garbage_vtable_index); |
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90 |
// Fix and bury in methodOop |
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m->set_interpreter_entry(NULL); // sets i2i entry and from_int |
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m->set_adapter_entry(NULL); |
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m->clear_code(); // from_c/from_i get set to c2i/i2i |
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95 |
if (access_flags.is_native()) { |
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m->clear_native_function(); |
|
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m->set_signature_handler(NULL); |
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} |
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100 |
NOT_PRODUCT(m->set_compiled_invocation_count(0);) |
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m->set_interpreter_invocation_count(0); |
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m->invocation_counter()->init(); |
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m->backedge_counter()->init(); |
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m->clear_number_of_breakpoints(); |
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assert(m->is_parsable(), "must be parsable here."); |
107 |
assert(m->size() == size, "wrong size for object"); |
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108 |
// We should not publish an uprasable object's reference |
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109 |
// into one that is parsable, since that presents problems |
|
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// for the concurrent parallel marking and precleaning phases |
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// of concurrent gc (CMS). |
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xconst->set_method(m); |
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return m; |
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} |
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115 |
||
116 |
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117 |
void methodKlass::oop_follow_contents(oop obj) { |
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118 |
assert (obj->is_method(), "object must be method"); |
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methodOop m = methodOop(obj); |
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120 |
// Performance tweak: We skip iterating over the klass pointer since we |
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// know that Universe::methodKlassObj never moves. |
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122 |
MarkSweep::mark_and_push(m->adr_constMethod()); |
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123 |
MarkSweep::mark_and_push(m->adr_constants()); |
|
124 |
if (m->method_data() != NULL) { |
|
125 |
MarkSweep::mark_and_push(m->adr_method_data()); |
|
126 |
} |
|
127 |
} |
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128 |
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129 |
#ifndef SERIALGC |
|
130 |
void methodKlass::oop_follow_contents(ParCompactionManager* cm, |
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131 |
oop obj) { |
|
132 |
assert (obj->is_method(), "object must be method"); |
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133 |
methodOop m = methodOop(obj); |
|
134 |
// Performance tweak: We skip iterating over the klass pointer since we |
|
135 |
// know that Universe::methodKlassObj never moves. |
|
136 |
PSParallelCompact::mark_and_push(cm, m->adr_constMethod()); |
|
137 |
PSParallelCompact::mark_and_push(cm, m->adr_constants()); |
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#ifdef COMPILER2 |
|
139 |
if (m->method_data() != NULL) { |
|
140 |
PSParallelCompact::mark_and_push(cm, m->adr_method_data()); |
|
141 |
} |
|
142 |
#endif // COMPILER2 |
|
143 |
} |
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144 |
#endif // SERIALGC |
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145 |
||
146 |
int methodKlass::oop_oop_iterate(oop obj, OopClosure* blk) { |
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147 |
assert (obj->is_method(), "object must be method"); |
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148 |
methodOop m = methodOop(obj); |
|
149 |
// Get size before changing pointers. |
|
150 |
// Don't call size() or oop_size() since that is a virtual call. |
|
151 |
int size = m->object_size(); |
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152 |
// Performance tweak: We skip iterating over the klass pointer since we |
|
153 |
// know that Universe::methodKlassObj never moves |
|
154 |
blk->do_oop(m->adr_constMethod()); |
|
155 |
blk->do_oop(m->adr_constants()); |
|
156 |
if (m->method_data() != NULL) { |
|
157 |
blk->do_oop(m->adr_method_data()); |
|
158 |
} |
|
159 |
return size; |
|
160 |
} |
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161 |
||
162 |
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163 |
int methodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { |
|
164 |
assert (obj->is_method(), "object must be method"); |
|
165 |
methodOop m = methodOop(obj); |
|
166 |
// Get size before changing pointers. |
|
167 |
// Don't call size() or oop_size() since that is a virtual call. |
|
168 |
int size = m->object_size(); |
|
169 |
// Performance tweak: We skip iterating over the klass pointer since we |
|
170 |
// know that Universe::methodKlassObj never moves. |
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171 |
oop* adr; |
|
172 |
adr = m->adr_constMethod(); |
|
173 |
if (mr.contains(adr)) blk->do_oop(adr); |
|
174 |
adr = m->adr_constants(); |
|
175 |
if (mr.contains(adr)) blk->do_oop(adr); |
|
176 |
if (m->method_data() != NULL) { |
|
177 |
adr = m->adr_method_data(); |
|
178 |
if (mr.contains(adr)) blk->do_oop(adr); |
|
179 |
} |
|
180 |
return size; |
|
181 |
} |
|
182 |
||
183 |
||
184 |
int methodKlass::oop_adjust_pointers(oop obj) { |
|
185 |
assert(obj->is_method(), "should be method"); |
|
186 |
methodOop m = methodOop(obj); |
|
187 |
// Get size before changing pointers. |
|
188 |
// Don't call size() or oop_size() since that is a virtual call. |
|
189 |
int size = m->object_size(); |
|
190 |
// Performance tweak: We skip iterating over the klass pointer since we |
|
191 |
// know that Universe::methodKlassObj never moves. |
|
192 |
MarkSweep::adjust_pointer(m->adr_constMethod()); |
|
193 |
MarkSweep::adjust_pointer(m->adr_constants()); |
|
194 |
if (m->method_data() != NULL) { |
|
195 |
MarkSweep::adjust_pointer(m->adr_method_data()); |
|
196 |
} |
|
197 |
return size; |
|
198 |
} |
|
199 |
||
200 |
#ifndef SERIALGC |
|
201 |
void methodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
|
202 |
assert(obj->is_method(), "should be method"); |
|
203 |
} |
|
204 |
||
205 |
int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
|
206 |
assert(obj->is_method(), "should be method"); |
|
207 |
methodOop m = methodOop(obj); |
|
208 |
PSParallelCompact::adjust_pointer(m->adr_constMethod()); |
|
209 |
PSParallelCompact::adjust_pointer(m->adr_constants()); |
|
210 |
#ifdef COMPILER2 |
|
211 |
if (m->method_data() != NULL) { |
|
212 |
PSParallelCompact::adjust_pointer(m->adr_method_data()); |
|
213 |
} |
|
214 |
#endif // COMPILER2 |
|
215 |
return m->object_size(); |
|
216 |
} |
|
217 |
||
218 |
int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, |
|
219 |
HeapWord* beg_addr, HeapWord* end_addr) { |
|
220 |
assert(obj->is_method(), "should be method"); |
|
221 |
||
222 |
oop* p; |
|
223 |
methodOop m = methodOop(obj); |
|
224 |
||
225 |
p = m->adr_constMethod(); |
|
226 |
PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); |
|
227 |
p = m->adr_constants(); |
|
228 |
PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); |
|
229 |
||
230 |
#ifdef COMPILER2 |
|
231 |
if (m->method_data() != NULL) { |
|
232 |
p = m->adr_method_data(); |
|
233 |
PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); |
|
234 |
} |
|
235 |
#endif // COMPILER2 |
|
236 |
return m->object_size(); |
|
237 |
} |
|
238 |
#endif // SERIALGC |
|
239 |
||
240 |
#ifndef PRODUCT |
|
241 |
||
242 |
// Printing |
|
243 |
||
244 |
void methodKlass::oop_print_on(oop obj, outputStream* st) { |
|
245 |
ResourceMark rm; |
|
246 |
assert(obj->is_method(), "must be method"); |
|
247 |
Klass::oop_print_on(obj, st); |
|
248 |
methodOop m = methodOop(obj); |
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// get the effect of PrintOopAddress, always, for methods: |
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250 |
st->print_cr(" - this oop: "INTPTR_FORMAT, (intptr_t)m); |
1 | 251 |
st->print (" - method holder: "); m->method_holder()->print_value_on(st); st->cr(); |
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252 |
st->print (" - constants: "INTPTR_FORMAT" ", (address)m->constants()); |
1 | 253 |
m->constants()->print_value_on(st); st->cr(); |
254 |
st->print (" - access: 0x%x ", m->access_flags().as_int()); m->access_flags().print_on(st); st->cr(); |
|
255 |
st->print (" - name: "); m->name()->print_value_on(st); st->cr(); |
|
256 |
st->print (" - signature: "); m->signature()->print_value_on(st); st->cr(); |
|
257 |
st->print_cr(" - max stack: %d", m->max_stack()); |
|
258 |
st->print_cr(" - max locals: %d", m->max_locals()); |
|
259 |
st->print_cr(" - size of params: %d", m->size_of_parameters()); |
|
260 |
st->print_cr(" - method size: %d", m->method_size()); |
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if (m->intrinsic_id() != vmIntrinsics::_none) |
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262 |
st->print_cr(" - intrinsic id: %d %s", m->intrinsic_id(), vmIntrinsics::name_at(m->intrinsic_id())); |
6453 | 263 |
if (m->highest_comp_level() != CompLevel_none) |
264 |
st->print_cr(" - highest level: %d", m->highest_comp_level()); |
|
1 | 265 |
st->print_cr(" - vtable index: %d", m->_vtable_index); |
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266 |
st->print_cr(" - i2i entry: " INTPTR_FORMAT, m->interpreter_entry()); |
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267 |
st->print_cr(" - adapter: " INTPTR_FORMAT, m->adapter()); |
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|
268 |
st->print_cr(" - compiled entry " INTPTR_FORMAT, m->from_compiled_entry()); |
1 | 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 |
} |
1 | 274 |
if (m->method_data() != NULL) { |
275 |
st->print_cr(" - method data: " INTPTR_FORMAT, (address)m->method_data()); |
|
276 |
} |
|
277 |
st->print_cr(" - checked ex length: %d", m->checked_exceptions_length()); |
|
278 |
if (m->checked_exceptions_length() > 0) { |
|
279 |
CheckedExceptionElement* table = m->checked_exceptions_start(); |
|
280 |
st->print_cr(" - checked ex start: " INTPTR_FORMAT, table); |
|
281 |
if (Verbose) { |
|
282 |
for (int i = 0; i < m->checked_exceptions_length(); i++) { |
|
283 |
st->print_cr(" - throws %s", m->constants()->printable_name_at(table[i].class_cp_index)); |
|
284 |
} |
|
285 |
} |
|
286 |
} |
|
287 |
if (m->has_linenumber_table()) { |
|
288 |
u_char* table = m->compressed_linenumber_table(); |
|
289 |
st->print_cr(" - linenumber start: " INTPTR_FORMAT, table); |
|
290 |
if (Verbose) { |
|
291 |
CompressedLineNumberReadStream stream(table); |
|
292 |
while (stream.read_pair()) { |
|
293 |
st->print_cr(" - line %d: %d", stream.line(), stream.bci()); |
|
294 |
} |
|
295 |
} |
|
296 |
} |
|
297 |
st->print_cr(" - localvar length: %d", m->localvariable_table_length()); |
|
298 |
if (m->localvariable_table_length() > 0) { |
|
299 |
LocalVariableTableElement* table = m->localvariable_table_start(); |
|
300 |
st->print_cr(" - localvar start: " INTPTR_FORMAT, table); |
|
301 |
if (Verbose) { |
|
302 |
for (int i = 0; i < m->localvariable_table_length(); i++) { |
|
303 |
int bci = table[i].start_bci; |
|
304 |
int len = table[i].length; |
|
305 |
const char* name = m->constants()->printable_name_at(table[i].name_cp_index); |
|
306 |
const char* desc = m->constants()->printable_name_at(table[i].descriptor_cp_index); |
|
307 |
int slot = table[i].slot; |
|
308 |
st->print_cr(" - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot); |
|
309 |
} |
|
310 |
} |
|
311 |
} |
|
312 |
if (m->code() != NULL) { |
|
313 |
st->print (" - compiled code: "); |
|
314 |
m->code()->print_value_on(st); |
|
315 |
st->cr(); |
|
316 |
} |
|
2534 | 317 |
if (m->is_method_handle_invoke()) { |
318 |
st->print_cr(" - invoke method type: " INTPTR_FORMAT, (address) m->method_handle_type()); |
|
319 |
// m is classified as native, but it does not have an interesting |
|
320 |
// native_function or signature handler |
|
321 |
} else if (m->is_native()) { |
|
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|
322 |
st->print_cr(" - native function: " INTPTR_FORMAT, m->native_function()); |
5c7b6f4ce0a1
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|
323 |
st->print_cr(" - signature handler: " INTPTR_FORMAT, m->signature_handler()); |
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|
324 |
} |
1 | 325 |
} |
326 |
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|
327 |
#endif //PRODUCT |
1 | 328 |
|
329 |
void methodKlass::oop_print_value_on(oop obj, outputStream* st) { |
|
330 |
assert(obj->is_method(), "must be method"); |
|
331 |
Klass::oop_print_value_on(obj, st); |
|
332 |
methodOop m = methodOop(obj); |
|
333 |
st->print(" "); |
|
334 |
m->name()->print_value_on(st); |
|
335 |
st->print(" "); |
|
336 |
m->signature()->print_value_on(st); |
|
337 |
st->print(" in "); |
|
338 |
m->method_holder()->print_value_on(st); |
|
339 |
if (WizardMode) st->print("[%d,%d]", m->size_of_parameters(), m->max_locals()); |
|
340 |
if (WizardMode && m->code() != NULL) st->print(" ((nmethod*)%p)", m->code()); |
|
341 |
} |
|
342 |
||
343 |
const char* methodKlass::internal_name() const { |
|
344 |
return "{method}"; |
|
345 |
} |
|
346 |
||
347 |
||
348 |
// Verification |
|
349 |
||
350 |
void methodKlass::oop_verify_on(oop obj, outputStream* st) { |
|
351 |
Klass::oop_verify_on(obj, st); |
|
352 |
guarantee(obj->is_method(), "object must be method"); |
|
353 |
if (!obj->partially_loaded()) { |
|
354 |
methodOop m = methodOop(obj); |
|
355 |
guarantee(m->is_perm(), "should be in permspace"); |
|
356 |
guarantee(m->name()->is_perm(), "should be in permspace"); |
|
357 |
guarantee(m->name()->is_symbol(), "should be symbol"); |
|
358 |
guarantee(m->signature()->is_perm(), "should be in permspace"); |
|
359 |
guarantee(m->signature()->is_symbol(), "should be symbol"); |
|
360 |
guarantee(m->constants()->is_perm(), "should be in permspace"); |
|
361 |
guarantee(m->constants()->is_constantPool(), "should be constant pool"); |
|
362 |
guarantee(m->constMethod()->is_constMethod(), "should be constMethodOop"); |
|
363 |
guarantee(m->constMethod()->is_perm(), "should be in permspace"); |
|
364 |
methodDataOop method_data = m->method_data(); |
|
365 |
guarantee(method_data == NULL || |
|
366 |
method_data->is_perm(), "should be in permspace"); |
|
367 |
guarantee(method_data == NULL || |
|
368 |
method_data->is_methodData(), "should be method data"); |
|
369 |
} |
|
370 |
} |
|
371 |
||
372 |
bool methodKlass::oop_partially_loaded(oop obj) const { |
|
373 |
assert(obj->is_method(), "object must be method"); |
|
374 |
methodOop m = methodOop(obj); |
|
375 |
constMethodOop xconst = m->constMethod(); |
|
376 |
assert(xconst != NULL, "const method must be set"); |
|
377 |
constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); |
|
378 |
return ck->oop_partially_loaded(xconst); |
|
379 |
} |
|
380 |
||
381 |
||
382 |
void methodKlass::oop_set_partially_loaded(oop obj) { |
|
383 |
assert(obj->is_method(), "object must be method"); |
|
384 |
methodOop m = methodOop(obj); |
|
385 |
constMethodOop xconst = m->constMethod(); |
|
386 |
assert(xconst != NULL, "const method must be set"); |
|
387 |
constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); |
|
388 |
ck->oop_set_partially_loaded(xconst); |
|
389 |
} |