Mercurial > hg > graal-jvmci-8
annotate src/share/vm/oops/methodKlass.cpp @ 5150:fdd9dd4508fa
some GC fixes
avoid non-Java bytecodes in code() array passed to Graal
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Thu, 22 Mar 2012 18:54:02 -0700 |
parents | 18a5539bf19b |
children | af59b4dfc9e4 |
rev | line source |
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0 | 1 /* |
2227 | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "gc_implementation/shared/markSweep.inline.hpp" | |
28 #include "gc_interface/collectedHeap.inline.hpp" | |
29 #include "interpreter/interpreter.hpp" | |
30 #include "memory/gcLocker.hpp" | |
31 #include "memory/resourceArea.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/constMethodKlass.hpp" | |
34 #include "oops/klassOop.hpp" | |
35 #include "oops/methodDataOop.hpp" | |
36 #include "oops/methodKlass.hpp" | |
37 #include "oops/oop.inline.hpp" | |
38 #include "oops/oop.inline2.hpp" | |
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39 #include "oops/symbol.hpp" |
1972 | 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 |
0 | 45 |
46 klassOop methodKlass::create_klass(TRAPS) { | |
47 methodKlass o; | |
48 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
49 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
50 // Make sure size calculation is right | |
51 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
52 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
53 return k(); | |
54 } | |
55 | |
56 | |
57 int methodKlass::oop_size(oop obj) const { | |
58 assert(obj->is_method(), "must be method oop"); | |
59 return methodOop(obj)->object_size(); | |
60 } | |
61 | |
62 | |
63 bool methodKlass::oop_is_parsable(oop obj) const { | |
64 assert(obj->is_method(), "must be method oop"); | |
65 return methodOop(obj)->object_is_parsable(); | |
66 } | |
67 | |
68 | |
69 methodOop methodKlass::allocate(constMethodHandle xconst, | |
70 AccessFlags access_flags, TRAPS) { | |
71 int size = methodOopDesc::object_size(access_flags.is_native()); | |
72 KlassHandle h_k(THREAD, as_klassOop()); | |
73 assert(xconst()->is_parsable(), "possible publication protocol violation"); | |
74 methodOop m = (methodOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); | |
75 assert(!m->is_parsable(), "not expecting parsability yet."); | |
76 | |
77 No_Safepoint_Verifier no_safepoint; // until m becomes parsable below | |
78 m->set_constMethod(xconst()); | |
79 m->set_access_flags(access_flags); | |
80 m->set_method_size(size); | |
81 m->set_name_index(0); | |
82 m->set_signature_index(0); | |
83 #ifdef CC_INTERP | |
84 m->set_result_index(T_VOID); | |
85 #endif | |
86 m->set_constants(NULL); | |
87 m->set_max_stack(0); | |
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); |
0 | 91 m->set_method_data(NULL); |
92 m->set_interpreter_throwout_count(0); | |
93 m->set_vtable_index(methodOopDesc::garbage_vtable_index); | |
94 | |
95 // Fix and bury in methodOop | |
96 m->set_interpreter_entry(NULL); // sets i2i entry and from_int | |
97 m->set_adapter_entry(NULL); | |
98 m->clear_code(); // from_c/from_i get set to c2i/i2i | |
99 | |
100 if (access_flags.is_native()) { | |
101 m->clear_native_function(); | |
102 m->set_signature_handler(NULL); | |
103 } | |
104 | |
105 NOT_PRODUCT(m->set_compiled_invocation_count(0);) | |
106 m->set_interpreter_invocation_count(0); | |
107 m->invocation_counter()->init(); | |
108 m->backedge_counter()->init(); | |
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 #endif |
1783 | 113 |
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114 #ifdef TIERED |
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115 m->set_rate(0); |
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116 m->set_prev_event_count(0); |
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117 m->set_prev_time(0); |
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118 #endif |
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119 |
0 | 120 assert(m->is_parsable(), "must be parsable here."); |
121 assert(m->size() == size, "wrong size for object"); | |
122 // We should not publish an uprasable object's reference | |
123 // into one that is parsable, since that presents problems | |
124 // for the concurrent parallel marking and precleaning phases | |
125 // of concurrent gc (CMS). | |
126 xconst->set_method(m); | |
127 return m; | |
128 } | |
129 | |
130 | |
131 void methodKlass::oop_follow_contents(oop obj) { | |
132 assert (obj->is_method(), "object must be method"); | |
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 MarkSweep::mark_and_push(m->adr_constMethod()); | |
137 MarkSweep::mark_and_push(m->adr_constants()); | |
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138 #ifdef GRAAL |
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139 MarkSweep::mark_and_push(m->adr_graal_mirror()); |
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140 #endif |
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141 MarkSweep::mark_and_push(m->adr_method_data()); |
0 | 142 } |
143 | |
144 #ifndef SERIALGC | |
145 void methodKlass::oop_follow_contents(ParCompactionManager* cm, | |
146 oop obj) { | |
147 assert (obj->is_method(), "object must be method"); | |
148 methodOop m = methodOop(obj); | |
149 // Performance tweak: We skip iterating over the klass pointer since we | |
150 // know that Universe::methodKlassObj never moves. | |
151 PSParallelCompact::mark_and_push(cm, m->adr_constMethod()); | |
152 PSParallelCompact::mark_and_push(cm, m->adr_constants()); | |
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153 #ifdef GRAAL |
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154 PSParallelCompact::mark_and_push(cm, m->adr_graal_mirror()); |
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155 #endif |
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156 PSParallelCompact::mark_and_push(cm, m->adr_method_data()); |
0 | 157 } |
158 #endif // SERIALGC | |
159 | |
160 int methodKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
161 assert (obj->is_method(), "object must be method"); | |
162 methodOop m = methodOop(obj); | |
163 // Get size before changing pointers. | |
164 // Don't call size() or oop_size() since that is a virtual call. | |
165 int size = m->object_size(); | |
166 // Performance tweak: We skip iterating over the klass pointer since we | |
167 // know that Universe::methodKlassObj never moves | |
168 blk->do_oop(m->adr_constMethod()); | |
169 blk->do_oop(m->adr_constants()); | |
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170 #ifdef GRAAL |
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171 blk->do_oop(m->adr_graal_mirror()); |
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172 #endif |
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173 blk->do_oop(m->adr_method_data()); |
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174 |
0 | 175 return size; |
176 } | |
177 | |
178 | |
179 int methodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
180 assert (obj->is_method(), "object must be method"); | |
181 methodOop m = methodOop(obj); | |
182 // Get size before changing pointers. | |
183 // Don't call size() or oop_size() since that is a virtual call. | |
184 int size = m->object_size(); | |
185 // Performance tweak: We skip iterating over the klass pointer since we | |
186 // know that Universe::methodKlassObj never moves. | |
187 oop* adr; | |
188 adr = m->adr_constMethod(); | |
189 if (mr.contains(adr)) blk->do_oop(adr); | |
190 adr = m->adr_constants(); | |
191 if (mr.contains(adr)) blk->do_oop(adr); | |
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192 #ifdef GRAAL |
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193 adr = m->adr_graal_mirror(); |
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194 if (mr.contains(adr)) blk->do_oop(adr); |
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195 #endif |
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196 adr = m->adr_method_data(); |
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197 if (mr.contains(adr)) blk->do_oop(adr); |
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198 |
0 | 199 return size; |
200 } | |
201 | |
202 | |
203 int methodKlass::oop_adjust_pointers(oop obj) { | |
204 assert(obj->is_method(), "should be method"); | |
205 methodOop m = methodOop(obj); | |
206 // Get size before changing pointers. | |
207 // Don't call size() or oop_size() since that is a virtual call. | |
208 int size = m->object_size(); | |
209 // Performance tweak: We skip iterating over the klass pointer since we | |
210 // know that Universe::methodKlassObj never moves. | |
211 MarkSweep::adjust_pointer(m->adr_constMethod()); | |
212 MarkSweep::adjust_pointer(m->adr_constants()); | |
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213 #ifdef GRAAL |
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214 MarkSweep::adjust_pointer(m->adr_graal_mirror()); |
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215 #endif |
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216 MarkSweep::adjust_pointer(m->adr_method_data()); |
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217 |
0 | 218 return size; |
219 } | |
220 | |
221 #ifndef SERIALGC | |
222 void methodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
223 assert(obj->is_method(), "should be method"); | |
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224 methodOop m = methodOop(obj); |
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225 #ifdef GRAAL |
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226 oop* adr = m->adr_graal_mirror(); |
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227 if(PSScavenge::should_scavenge(adr)) { |
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228 pm->claim_or_forward_depth(adr); |
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229 } |
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230 #endif |
0 | 231 } |
232 | |
233 int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
234 assert(obj->is_method(), "should be method"); | |
235 methodOop m = methodOop(obj); | |
236 PSParallelCompact::adjust_pointer(m->adr_constMethod()); | |
237 PSParallelCompact::adjust_pointer(m->adr_constants()); | |
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238 #ifdef GRAAL |
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239 PSParallelCompact::adjust_pointer(m->adr_graal_mirror()); |
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240 #endif |
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241 PSParallelCompact::adjust_pointer(m->adr_method_data()); |
0 | 242 return m->object_size(); |
243 } | |
244 #endif // SERIALGC | |
245 | |
246 #ifndef PRODUCT | |
247 | |
248 // Printing | |
249 | |
250 void methodKlass::oop_print_on(oop obj, outputStream* st) { | |
251 ResourceMark rm; | |
252 assert(obj->is_method(), "must be method"); | |
253 Klass::oop_print_on(obj, st); | |
254 methodOop m = methodOop(obj); | |
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255 // get the effect of PrintOopAddress, always, for methods: |
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256 st->print_cr(" - this oop: "INTPTR_FORMAT, (intptr_t)m); |
0 | 257 st->print (" - method holder: "); m->method_holder()->print_value_on(st); st->cr(); |
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258 st->print (" - constants: "INTPTR_FORMAT" ", (address)m->constants()); |
0 | 259 m->constants()->print_value_on(st); st->cr(); |
260 st->print (" - access: 0x%x ", m->access_flags().as_int()); m->access_flags().print_on(st); st->cr(); | |
261 st->print (" - name: "); m->name()->print_value_on(st); st->cr(); | |
262 st->print (" - signature: "); m->signature()->print_value_on(st); st->cr(); | |
263 st->print_cr(" - max stack: %d", m->max_stack()); | |
264 st->print_cr(" - max locals: %d", m->max_locals()); | |
265 st->print_cr(" - size of params: %d", m->size_of_parameters()); | |
266 st->print_cr(" - method size: %d", m->method_size()); | |
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267 if (m->intrinsic_id() != vmIntrinsics::_none) |
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268 st->print_cr(" - intrinsic id: %d %s", m->intrinsic_id(), vmIntrinsics::name_at(m->intrinsic_id())); |
1783 | 269 if (m->highest_comp_level() != CompLevel_none) |
270 st->print_cr(" - highest level: %d", m->highest_comp_level()); | |
0 | 271 st->print_cr(" - vtable index: %d", m->_vtable_index); |
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272 st->print_cr(" - i2i entry: " INTPTR_FORMAT, m->interpreter_entry()); |
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273 st->print_cr(" - adapter: " INTPTR_FORMAT, m->adapter()); |
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274 st->print_cr(" - compiled entry " INTPTR_FORMAT, m->from_compiled_entry()); |
0 | 275 st->print_cr(" - code size: %d", m->code_size()); |
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276 if (m->code_size() != 0) { |
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277 st->print_cr(" - code start: " INTPTR_FORMAT, m->code_base()); |
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278 st->print_cr(" - code end (excl): " INTPTR_FORMAT, m->code_base() + m->code_size()); |
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279 } |
0 | 280 if (m->method_data() != NULL) { |
281 st->print_cr(" - method data: " INTPTR_FORMAT, (address)m->method_data()); | |
282 } | |
283 st->print_cr(" - checked ex length: %d", m->checked_exceptions_length()); | |
284 if (m->checked_exceptions_length() > 0) { | |
285 CheckedExceptionElement* table = m->checked_exceptions_start(); | |
286 st->print_cr(" - checked ex start: " INTPTR_FORMAT, table); | |
287 if (Verbose) { | |
288 for (int i = 0; i < m->checked_exceptions_length(); i++) { | |
289 st->print_cr(" - throws %s", m->constants()->printable_name_at(table[i].class_cp_index)); | |
290 } | |
291 } | |
292 } | |
293 if (m->has_linenumber_table()) { | |
294 u_char* table = m->compressed_linenumber_table(); | |
295 st->print_cr(" - linenumber start: " INTPTR_FORMAT, table); | |
296 if (Verbose) { | |
297 CompressedLineNumberReadStream stream(table); | |
298 while (stream.read_pair()) { | |
299 st->print_cr(" - line %d: %d", stream.line(), stream.bci()); | |
300 } | |
301 } | |
302 } | |
303 st->print_cr(" - localvar length: %d", m->localvariable_table_length()); | |
304 if (m->localvariable_table_length() > 0) { | |
305 LocalVariableTableElement* table = m->localvariable_table_start(); | |
306 st->print_cr(" - localvar start: " INTPTR_FORMAT, table); | |
307 if (Verbose) { | |
308 for (int i = 0; i < m->localvariable_table_length(); i++) { | |
309 int bci = table[i].start_bci; | |
310 int len = table[i].length; | |
311 const char* name = m->constants()->printable_name_at(table[i].name_cp_index); | |
312 const char* desc = m->constants()->printable_name_at(table[i].descriptor_cp_index); | |
313 int slot = table[i].slot; | |
314 st->print_cr(" - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot); | |
315 } | |
316 } | |
317 } | |
318 if (m->code() != NULL) { | |
319 st->print (" - compiled code: "); | |
320 m->code()->print_value_on(st); | |
321 st->cr(); | |
322 } | |
710 | 323 if (m->is_method_handle_invoke()) { |
324 st->print_cr(" - invoke method type: " INTPTR_FORMAT, (address) m->method_handle_type()); | |
325 // m is classified as native, but it does not have an interesting | |
326 // native_function or signature handler | |
327 } else if (m->is_native()) { | |
665
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328 st->print_cr(" - native function: " INTPTR_FORMAT, m->native_function()); |
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329 st->print_cr(" - signature handler: " INTPTR_FORMAT, m->signature_handler()); |
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330 } |
0 | 331 } |
332 | |
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333 #endif //PRODUCT |
0 | 334 |
335 void methodKlass::oop_print_value_on(oop obj, outputStream* st) { | |
336 assert(obj->is_method(), "must be method"); | |
337 Klass::oop_print_value_on(obj, st); | |
338 methodOop m = methodOop(obj); | |
339 st->print(" "); | |
340 m->name()->print_value_on(st); | |
341 st->print(" "); | |
342 m->signature()->print_value_on(st); | |
343 st->print(" in "); | |
344 m->method_holder()->print_value_on(st); | |
345 if (WizardMode) st->print("[%d,%d]", m->size_of_parameters(), m->max_locals()); | |
346 if (WizardMode && m->code() != NULL) st->print(" ((nmethod*)%p)", m->code()); | |
347 } | |
348 | |
349 const char* methodKlass::internal_name() const { | |
350 return "{method}"; | |
351 } | |
352 | |
353 | |
354 // Verification | |
355 | |
356 void methodKlass::oop_verify_on(oop obj, outputStream* st) { | |
357 Klass::oop_verify_on(obj, st); | |
358 guarantee(obj->is_method(), "object must be method"); | |
359 if (!obj->partially_loaded()) { | |
360 methodOop m = methodOop(obj); | |
361 guarantee(m->is_perm(), "should be in permspace"); | |
362 guarantee(m->constants()->is_perm(), "should be in permspace"); | |
363 guarantee(m->constants()->is_constantPool(), "should be constant pool"); | |
364 guarantee(m->constMethod()->is_constMethod(), "should be constMethodOop"); | |
365 guarantee(m->constMethod()->is_perm(), "should be in permspace"); | |
366 methodDataOop method_data = m->method_data(); | |
367 guarantee(method_data == NULL || | |
368 method_data->is_perm(), "should be in permspace"); | |
369 guarantee(method_data == NULL || | |
370 method_data->is_methodData(), "should be method data"); | |
371 } | |
372 } | |
373 | |
374 bool methodKlass::oop_partially_loaded(oop obj) const { | |
375 assert(obj->is_method(), "object must be method"); | |
376 methodOop m = methodOop(obj); | |
377 constMethodOop xconst = m->constMethod(); | |
378 assert(xconst != NULL, "const method must be set"); | |
379 constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); | |
380 return ck->oop_partially_loaded(xconst); | |
381 } | |
382 | |
383 | |
384 void methodKlass::oop_set_partially_loaded(oop obj) { | |
385 assert(obj->is_method(), "object must be method"); | |
386 methodOop m = methodOop(obj); | |
387 constMethodOop xconst = m->constMethod(); | |
388 assert(xconst != NULL, "const method must be set"); | |
389 constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); | |
390 ck->oop_set_partially_loaded(xconst); | |
391 } |