Mercurial > hg > truffle
annotate src/share/vm/oops/methodKlass.cpp @ 6027:8a2e5a6a19a4
7143490: G1: Remove HeapRegion::_top_at_conc_mark_count
Summary: Removed the HeapRegion::_top_at_conc_mark_count field. It is no longer needed as a result of the changes for 6888336 and 7127706. Refactored the closures that finalize and verify the liveness counting data so that common functionality was placed into a base class.
Reviewed-by: brutisso, tonyp
author | johnc |
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date | Wed, 25 Apr 2012 10:23:12 -0700 |
parents | 94ec88ca68e2 |
children | 33df1aeaebbf 2fe087c3e814 |
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" |
0 | 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 { | |
54 assert(obj->is_method(), "must be method oop"); | |
55 return methodOop(obj)->object_size(); | |
56 } | |
57 | |
58 | |
59 bool methodKlass::oop_is_parsable(oop obj) const { | |
60 assert(obj->is_method(), "must be method oop"); | |
61 return methodOop(obj)->object_is_parsable(); | |
62 } | |
63 | |
64 | |
65 methodOop methodKlass::allocate(constMethodHandle xconst, | |
66 AccessFlags access_flags, TRAPS) { | |
67 int size = methodOopDesc::object_size(access_flags.is_native()); | |
68 KlassHandle h_k(THREAD, as_klassOop()); | |
69 assert(xconst()->is_parsable(), "possible publication protocol violation"); | |
70 methodOop m = (methodOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); | |
71 assert(!m->is_parsable(), "not expecting parsability yet."); | |
72 | |
73 No_Safepoint_Verifier no_safepoint; // until m becomes parsable below | |
74 m->set_constMethod(xconst()); | |
75 m->set_access_flags(access_flags); | |
76 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); | |
84 m->set_max_locals(0); | |
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85 m->set_intrinsic_id(vmIntrinsics::_none); |
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86 m->set_jfr_towrite(false); |
0 | 87 m->set_method_data(NULL); |
88 m->set_interpreter_throwout_count(0); | |
89 m->set_vtable_index(methodOopDesc::garbage_vtable_index); | |
90 | |
91 // Fix and bury in methodOop | |
92 m->set_interpreter_entry(NULL); // sets i2i entry and from_int | |
93 m->set_adapter_entry(NULL); | |
94 m->clear_code(); // from_c/from_i get set to c2i/i2i | |
95 | |
96 if (access_flags.is_native()) { | |
97 m->clear_native_function(); | |
98 m->set_signature_handler(NULL); | |
99 } | |
100 | |
101 NOT_PRODUCT(m->set_compiled_invocation_count(0);) | |
102 m->set_interpreter_invocation_count(0); | |
103 m->invocation_counter()->init(); | |
104 m->backedge_counter()->init(); | |
105 m->clear_number_of_breakpoints(); | |
1783 | 106 |
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107 #ifdef TIERED |
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108 m->set_rate(0); |
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109 m->set_prev_event_count(0); |
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110 m->set_prev_time(0); |
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111 #endif |
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112 |
0 | 113 assert(m->is_parsable(), "must be parsable here."); |
114 assert(m->size() == size, "wrong size for object"); | |
115 // We should not publish an uprasable object's reference | |
116 // into one that is parsable, since that presents problems | |
117 // for the concurrent parallel marking and precleaning phases | |
118 // of concurrent gc (CMS). | |
119 xconst->set_method(m); | |
120 return m; | |
121 } | |
122 | |
123 | |
124 void methodKlass::oop_follow_contents(oop obj) { | |
125 assert (obj->is_method(), "object must be method"); | |
126 methodOop m = methodOop(obj); | |
127 // Performance tweak: We skip iterating over the klass pointer since we | |
128 // know that Universe::methodKlassObj never moves. | |
129 MarkSweep::mark_and_push(m->adr_constMethod()); | |
130 MarkSweep::mark_and_push(m->adr_constants()); | |
131 if (m->method_data() != NULL) { | |
132 MarkSweep::mark_and_push(m->adr_method_data()); | |
133 } | |
134 } | |
135 | |
136 #ifndef SERIALGC | |
137 void methodKlass::oop_follow_contents(ParCompactionManager* cm, | |
138 oop obj) { | |
139 assert (obj->is_method(), "object must be method"); | |
140 methodOop m = methodOop(obj); | |
141 // Performance tweak: We skip iterating over the klass pointer since we | |
142 // know that Universe::methodKlassObj never moves. | |
143 PSParallelCompact::mark_and_push(cm, m->adr_constMethod()); | |
144 PSParallelCompact::mark_and_push(cm, m->adr_constants()); | |
145 #ifdef COMPILER2 | |
146 if (m->method_data() != NULL) { | |
147 PSParallelCompact::mark_and_push(cm, m->adr_method_data()); | |
148 } | |
149 #endif // COMPILER2 | |
150 } | |
151 #endif // SERIALGC | |
152 | |
153 int methodKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
154 assert (obj->is_method(), "object must be method"); | |
155 methodOop m = methodOop(obj); | |
156 // Get size before changing pointers. | |
157 // Don't call size() or oop_size() since that is a virtual call. | |
158 int size = m->object_size(); | |
159 // Performance tweak: We skip iterating over the klass pointer since we | |
160 // know that Universe::methodKlassObj never moves | |
161 blk->do_oop(m->adr_constMethod()); | |
162 blk->do_oop(m->adr_constants()); | |
163 if (m->method_data() != NULL) { | |
164 blk->do_oop(m->adr_method_data()); | |
165 } | |
166 return size; | |
167 } | |
168 | |
169 | |
170 int methodKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
171 assert (obj->is_method(), "object must be method"); | |
172 methodOop m = methodOop(obj); | |
173 // Get size before changing pointers. | |
174 // Don't call size() or oop_size() since that is a virtual call. | |
175 int size = m->object_size(); | |
176 // Performance tweak: We skip iterating over the klass pointer since we | |
177 // know that Universe::methodKlassObj never moves. | |
178 oop* adr; | |
179 adr = m->adr_constMethod(); | |
180 if (mr.contains(adr)) blk->do_oop(adr); | |
181 adr = m->adr_constants(); | |
182 if (mr.contains(adr)) blk->do_oop(adr); | |
183 if (m->method_data() != NULL) { | |
184 adr = m->adr_method_data(); | |
185 if (mr.contains(adr)) blk->do_oop(adr); | |
186 } | |
187 return size; | |
188 } | |
189 | |
190 | |
191 int methodKlass::oop_adjust_pointers(oop obj) { | |
192 assert(obj->is_method(), "should be method"); | |
193 methodOop m = methodOop(obj); | |
194 // Get size before changing pointers. | |
195 // Don't call size() or oop_size() since that is a virtual call. | |
196 int size = m->object_size(); | |
197 // Performance tweak: We skip iterating over the klass pointer since we | |
198 // know that Universe::methodKlassObj never moves. | |
199 MarkSweep::adjust_pointer(m->adr_constMethod()); | |
200 MarkSweep::adjust_pointer(m->adr_constants()); | |
201 if (m->method_data() != NULL) { | |
202 MarkSweep::adjust_pointer(m->adr_method_data()); | |
203 } | |
204 return size; | |
205 } | |
206 | |
207 #ifndef SERIALGC | |
208 void methodKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
209 assert(obj->is_method(), "should be method"); | |
210 } | |
211 | |
212 int methodKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
213 assert(obj->is_method(), "should be method"); | |
214 methodOop m = methodOop(obj); | |
215 PSParallelCompact::adjust_pointer(m->adr_constMethod()); | |
216 PSParallelCompact::adjust_pointer(m->adr_constants()); | |
217 #ifdef COMPILER2 | |
218 if (m->method_data() != NULL) { | |
219 PSParallelCompact::adjust_pointer(m->adr_method_data()); | |
220 } | |
221 #endif // COMPILER2 | |
222 return m->object_size(); | |
223 } | |
224 #endif // SERIALGC | |
225 | |
226 #ifndef PRODUCT | |
227 | |
228 // Printing | |
229 | |
230 void methodKlass::oop_print_on(oop obj, outputStream* st) { | |
231 ResourceMark rm; | |
232 assert(obj->is_method(), "must be method"); | |
233 Klass::oop_print_on(obj, st); | |
234 methodOop m = methodOop(obj); | |
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235 // get the effect of PrintOopAddress, always, for methods: |
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236 st->print_cr(" - this oop: "INTPTR_FORMAT, (intptr_t)m); |
0 | 237 st->print (" - method holder: "); m->method_holder()->print_value_on(st); st->cr(); |
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238 st->print (" - constants: "INTPTR_FORMAT" ", (address)m->constants()); |
0 | 239 m->constants()->print_value_on(st); st->cr(); |
240 st->print (" - access: 0x%x ", m->access_flags().as_int()); m->access_flags().print_on(st); st->cr(); | |
241 st->print (" - name: "); m->name()->print_value_on(st); st->cr(); | |
242 st->print (" - signature: "); m->signature()->print_value_on(st); st->cr(); | |
243 st->print_cr(" - max stack: %d", m->max_stack()); | |
244 st->print_cr(" - max locals: %d", m->max_locals()); | |
245 st->print_cr(" - size of params: %d", m->size_of_parameters()); | |
246 st->print_cr(" - method size: %d", m->method_size()); | |
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247 if (m->intrinsic_id() != vmIntrinsics::_none) |
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248 st->print_cr(" - intrinsic id: %d %s", m->intrinsic_id(), vmIntrinsics::name_at(m->intrinsic_id())); |
1783 | 249 if (m->highest_comp_level() != CompLevel_none) |
250 st->print_cr(" - highest level: %d", m->highest_comp_level()); | |
0 | 251 st->print_cr(" - vtable index: %d", m->_vtable_index); |
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252 st->print_cr(" - i2i entry: " INTPTR_FORMAT, m->interpreter_entry()); |
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253 st->print_cr(" - adapter: " INTPTR_FORMAT, m->adapter()); |
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254 st->print_cr(" - compiled entry " INTPTR_FORMAT, m->from_compiled_entry()); |
0 | 255 st->print_cr(" - code size: %d", m->code_size()); |
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256 if (m->code_size() != 0) { |
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257 st->print_cr(" - code start: " INTPTR_FORMAT, m->code_base()); |
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258 st->print_cr(" - code end (excl): " INTPTR_FORMAT, m->code_base() + m->code_size()); |
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259 } |
0 | 260 if (m->method_data() != NULL) { |
261 st->print_cr(" - method data: " INTPTR_FORMAT, (address)m->method_data()); | |
262 } | |
263 st->print_cr(" - checked ex length: %d", m->checked_exceptions_length()); | |
264 if (m->checked_exceptions_length() > 0) { | |
265 CheckedExceptionElement* table = m->checked_exceptions_start(); | |
266 st->print_cr(" - checked ex start: " INTPTR_FORMAT, table); | |
267 if (Verbose) { | |
268 for (int i = 0; i < m->checked_exceptions_length(); i++) { | |
269 st->print_cr(" - throws %s", m->constants()->printable_name_at(table[i].class_cp_index)); | |
270 } | |
271 } | |
272 } | |
273 if (m->has_linenumber_table()) { | |
274 u_char* table = m->compressed_linenumber_table(); | |
275 st->print_cr(" - linenumber start: " INTPTR_FORMAT, table); | |
276 if (Verbose) { | |
277 CompressedLineNumberReadStream stream(table); | |
278 while (stream.read_pair()) { | |
279 st->print_cr(" - line %d: %d", stream.line(), stream.bci()); | |
280 } | |
281 } | |
282 } | |
283 st->print_cr(" - localvar length: %d", m->localvariable_table_length()); | |
284 if (m->localvariable_table_length() > 0) { | |
285 LocalVariableTableElement* table = m->localvariable_table_start(); | |
286 st->print_cr(" - localvar start: " INTPTR_FORMAT, table); | |
287 if (Verbose) { | |
288 for (int i = 0; i < m->localvariable_table_length(); i++) { | |
289 int bci = table[i].start_bci; | |
290 int len = table[i].length; | |
291 const char* name = m->constants()->printable_name_at(table[i].name_cp_index); | |
292 const char* desc = m->constants()->printable_name_at(table[i].descriptor_cp_index); | |
293 int slot = table[i].slot; | |
294 st->print_cr(" - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot); | |
295 } | |
296 } | |
297 } | |
298 if (m->code() != NULL) { | |
299 st->print (" - compiled code: "); | |
300 m->code()->print_value_on(st); | |
301 st->cr(); | |
302 } | |
710 | 303 if (m->is_method_handle_invoke()) { |
304 st->print_cr(" - invoke method type: " INTPTR_FORMAT, (address) m->method_handle_type()); | |
305 // m is classified as native, but it does not have an interesting | |
306 // native_function or signature handler | |
307 } else if (m->is_native()) { | |
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308 st->print_cr(" - native function: " INTPTR_FORMAT, m->native_function()); |
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309 st->print_cr(" - signature handler: " INTPTR_FORMAT, m->signature_handler()); |
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310 } |
0 | 311 } |
312 | |
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313 #endif //PRODUCT |
0 | 314 |
315 void methodKlass::oop_print_value_on(oop obj, outputStream* st) { | |
316 assert(obj->is_method(), "must be method"); | |
317 Klass::oop_print_value_on(obj, st); | |
318 methodOop m = methodOop(obj); | |
319 st->print(" "); | |
320 m->name()->print_value_on(st); | |
321 st->print(" "); | |
322 m->signature()->print_value_on(st); | |
323 st->print(" in "); | |
324 m->method_holder()->print_value_on(st); | |
325 if (WizardMode) st->print("[%d,%d]", m->size_of_parameters(), m->max_locals()); | |
326 if (WizardMode && m->code() != NULL) st->print(" ((nmethod*)%p)", m->code()); | |
327 } | |
328 | |
329 const char* methodKlass::internal_name() const { | |
330 return "{method}"; | |
331 } | |
332 | |
333 | |
334 // Verification | |
335 | |
336 void methodKlass::oop_verify_on(oop obj, outputStream* st) { | |
337 Klass::oop_verify_on(obj, st); | |
338 guarantee(obj->is_method(), "object must be method"); | |
339 if (!obj->partially_loaded()) { | |
340 methodOop m = methodOop(obj); | |
341 guarantee(m->is_perm(), "should be in permspace"); | |
342 guarantee(m->constants()->is_perm(), "should be in permspace"); | |
343 guarantee(m->constants()->is_constantPool(), "should be constant pool"); | |
344 guarantee(m->constMethod()->is_constMethod(), "should be constMethodOop"); | |
345 guarantee(m->constMethod()->is_perm(), "should be in permspace"); | |
346 methodDataOop method_data = m->method_data(); | |
347 guarantee(method_data == NULL || | |
348 method_data->is_perm(), "should be in permspace"); | |
349 guarantee(method_data == NULL || | |
350 method_data->is_methodData(), "should be method data"); | |
351 } | |
352 } | |
353 | |
354 bool methodKlass::oop_partially_loaded(oop obj) const { | |
355 assert(obj->is_method(), "object must be method"); | |
356 methodOop m = methodOop(obj); | |
357 constMethodOop xconst = m->constMethod(); | |
358 assert(xconst != NULL, "const method must be set"); | |
359 constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); | |
360 return ck->oop_partially_loaded(xconst); | |
361 } | |
362 | |
363 | |
364 void methodKlass::oop_set_partially_loaded(oop obj) { | |
365 assert(obj->is_method(), "object must be method"); | |
366 methodOop m = methodOop(obj); | |
367 constMethodOop xconst = m->constMethod(); | |
368 assert(xconst != NULL, "const method must be set"); | |
369 constMethodKlass* ck = constMethodKlass::cast(xconst->klass()); | |
370 ck->oop_set_partially_loaded(xconst); | |
371 } |