Mercurial > hg > truffle
annotate src/share/vm/runtime/vframe.cpp @ 3763:e66f38dd58a9
Merge
author | ysr |
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date | Wed, 08 Jun 2011 08:39:53 -0700 |
parents | 1d1603768966 |
children | 0654ee04b214 1d7922586cf6 |
rev | line source |
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0 | 1 /* |
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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 "classfile/systemDictionary.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/codeCache.hpp" | |
30 #include "code/debugInfoRec.hpp" | |
31 #include "code/nmethod.hpp" | |
32 #include "code/pcDesc.hpp" | |
33 #include "code/scopeDesc.hpp" | |
34 #include "interpreter/interpreter.hpp" | |
35 #include "interpreter/oopMapCache.hpp" | |
36 #include "memory/resourceArea.hpp" | |
37 #include "oops/instanceKlass.hpp" | |
38 #include "oops/oop.inline.hpp" | |
39 #include "runtime/handles.inline.hpp" | |
40 #include "runtime/objectMonitor.hpp" | |
41 #include "runtime/objectMonitor.inline.hpp" | |
42 #include "runtime/signature.hpp" | |
43 #include "runtime/stubRoutines.hpp" | |
44 #include "runtime/synchronizer.hpp" | |
45 #include "runtime/vframe.hpp" | |
46 #include "runtime/vframeArray.hpp" | |
47 #include "runtime/vframe_hp.hpp" | |
0 | 48 |
49 vframe::vframe(const frame* fr, const RegisterMap* reg_map, JavaThread* thread) | |
50 : _reg_map(reg_map), _thread(thread) { | |
51 assert(fr != NULL, "must have frame"); | |
52 _fr = *fr; | |
53 } | |
54 | |
55 vframe::vframe(const frame* fr, JavaThread* thread) | |
56 : _reg_map(thread), _thread(thread) { | |
57 assert(fr != NULL, "must have frame"); | |
58 _fr = *fr; | |
59 } | |
60 | |
61 vframe* vframe::new_vframe(const frame* f, const RegisterMap* reg_map, JavaThread* thread) { | |
62 // Interpreter frame | |
63 if (f->is_interpreted_frame()) { | |
64 return new interpretedVFrame(f, reg_map, thread); | |
65 } | |
66 | |
67 // Compiled frame | |
68 CodeBlob* cb = f->cb(); | |
69 if (cb != NULL) { | |
70 if (cb->is_nmethod()) { | |
71 nmethod* nm = (nmethod*)cb; | |
72 return new compiledVFrame(f, reg_map, thread, nm); | |
73 } | |
74 | |
75 if (f->is_runtime_frame()) { | |
76 // Skip this frame and try again. | |
77 RegisterMap temp_map = *reg_map; | |
78 frame s = f->sender(&temp_map); | |
79 return new_vframe(&s, &temp_map, thread); | |
80 } | |
81 } | |
82 | |
83 // External frame | |
84 return new externalVFrame(f, reg_map, thread); | |
85 } | |
86 | |
87 vframe* vframe::sender() const { | |
88 RegisterMap temp_map = *register_map(); | |
89 assert(is_top(), "just checking"); | |
90 if (_fr.is_entry_frame() && _fr.is_first_frame()) return NULL; | |
91 frame s = _fr.real_sender(&temp_map); | |
92 if (s.is_first_frame()) return NULL; | |
93 return vframe::new_vframe(&s, &temp_map, thread()); | |
94 } | |
95 | |
96 vframe* vframe::top() const { | |
97 vframe* vf = (vframe*) this; | |
98 while (!vf->is_top()) vf = vf->sender(); | |
99 return vf; | |
100 } | |
101 | |
102 | |
103 javaVFrame* vframe::java_sender() const { | |
104 vframe* f = sender(); | |
105 while (f != NULL) { | |
106 if (f->is_java_frame()) return javaVFrame::cast(f); | |
107 f = f->sender(); | |
108 } | |
109 return NULL; | |
110 } | |
111 | |
112 // ------------- javaVFrame -------------- | |
113 | |
114 GrowableArray<MonitorInfo*>* javaVFrame::locked_monitors() { | |
115 assert(SafepointSynchronize::is_at_safepoint() || JavaThread::current() == thread(), | |
116 "must be at safepoint or it's a java frame of the current thread"); | |
117 | |
118 GrowableArray<MonitorInfo*>* mons = monitors(); | |
119 GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(mons->length()); | |
120 if (mons->is_empty()) return result; | |
121 | |
122 bool found_first_monitor = false; | |
123 ObjectMonitor *pending_monitor = thread()->current_pending_monitor(); | |
124 ObjectMonitor *waiting_monitor = thread()->current_waiting_monitor(); | |
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125 oop pending_obj = (pending_monitor != NULL ? (oop) pending_monitor->object() : (oop) NULL); |
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126 oop waiting_obj = (waiting_monitor != NULL ? (oop) waiting_monitor->object() : (oop) NULL); |
0 | 127 |
128 for (int index = (mons->length()-1); index >= 0; index--) { | |
129 MonitorInfo* monitor = mons->at(index); | |
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130 if (monitor->eliminated() && is_compiled_frame()) continue; // skip eliminated monitor |
0 | 131 oop obj = monitor->owner(); |
132 if (obj == NULL) continue; // skip unowned monitor | |
133 // | |
134 // Skip the monitor that the thread is blocked to enter or waiting on | |
135 // | |
136 if (!found_first_monitor && (obj == pending_obj || obj == waiting_obj)) { | |
137 continue; | |
138 } | |
139 found_first_monitor = true; | |
140 result->append(monitor); | |
141 } | |
142 return result; | |
143 } | |
144 | |
145 static void print_locked_object_class_name(outputStream* st, Handle obj, const char* lock_state) { | |
146 if (obj.not_null()) { | |
147 st->print("\t- %s <" INTPTR_FORMAT "> ", lock_state, (address)obj()); | |
1142 | 148 if (obj->klass() == SystemDictionary::Class_klass()) { |
0 | 149 klassOop target_klass = java_lang_Class::as_klassOop(obj()); |
150 st->print_cr("(a java.lang.Class for %s)", instanceKlass::cast(target_klass)->external_name()); | |
151 } else { | |
152 Klass* k = Klass::cast(obj->klass()); | |
153 st->print_cr("(a %s)", k->external_name()); | |
154 } | |
155 } | |
156 } | |
157 | |
158 void javaVFrame::print_lock_info_on(outputStream* st, int frame_count) { | |
159 ResourceMark rm; | |
160 | |
161 // If this is the first frame, and java.lang.Object.wait(...) then print out the receiver. | |
162 if (frame_count == 0) { | |
163 if (method()->name() == vmSymbols::wait_name() && | |
164 instanceKlass::cast(method()->method_holder())->name() == vmSymbols::java_lang_Object()) { | |
165 StackValueCollection* locs = locals(); | |
166 if (!locs->is_empty()) { | |
167 StackValue* sv = locs->at(0); | |
168 if (sv->type() == T_OBJECT) { | |
169 Handle o = locs->at(0)->get_obj(); | |
170 print_locked_object_class_name(st, o, "waiting on"); | |
171 } | |
172 } | |
173 } else if (thread()->current_park_blocker() != NULL) { | |
174 oop obj = thread()->current_park_blocker(); | |
175 Klass* k = Klass::cast(obj->klass()); | |
176 st->print_cr("\t- %s <" INTPTR_FORMAT "> (a %s)", "parking to wait for ", (address)obj, k->external_name()); | |
177 } | |
178 } | |
179 | |
180 | |
181 // Print out all monitors that we have locked or are trying to lock | |
182 GrowableArray<MonitorInfo*>* mons = monitors(); | |
183 if (!mons->is_empty()) { | |
184 bool found_first_monitor = false; | |
185 for (int index = (mons->length()-1); index >= 0; index--) { | |
186 MonitorInfo* monitor = mons->at(index); | |
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187 if (monitor->eliminated() && is_compiled_frame()) { // Eliminated in compiled code |
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188 if (monitor->owner_is_scalar_replaced()) { |
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189 Klass* k = Klass::cast(monitor->owner_klass()); |
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190 st->print("\t- eliminated <owner is scalar replaced> (a %s)", k->external_name()); |
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191 } else { |
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192 oop obj = monitor->owner(); |
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193 if (obj != NULL) { |
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194 print_locked_object_class_name(st, obj, "eliminated"); |
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195 } |
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196 } |
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197 continue; |
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198 } |
0 | 199 if (monitor->owner() != NULL) { |
200 | |
201 // First, assume we have the monitor locked. If we haven't found an | |
202 // owned monitor before and this is the first frame, then we need to | |
203 // see if we have completed the lock or we are blocked trying to | |
204 // acquire it - we can only be blocked if the monitor is inflated | |
205 | |
206 const char *lock_state = "locked"; // assume we have the monitor locked | |
207 if (!found_first_monitor && frame_count == 0) { | |
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208 markOop mark = monitor->owner()->mark(); |
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209 if (mark->has_monitor() && |
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210 mark->monitor() == thread()->current_pending_monitor()) { |
0 | 211 lock_state = "waiting to lock"; |
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212 } |
0 | 213 } |
214 | |
215 found_first_monitor = true; | |
216 print_locked_object_class_name(st, monitor->owner(), lock_state); | |
217 } | |
218 } | |
219 } | |
220 } | |
221 | |
222 // ------------- interpretedVFrame -------------- | |
223 | |
224 u_char* interpretedVFrame::bcp() const { | |
225 return fr().interpreter_frame_bcp(); | |
226 } | |
227 | |
228 void interpretedVFrame::set_bcp(u_char* bcp) { | |
229 fr().interpreter_frame_set_bcp(bcp); | |
230 } | |
231 | |
232 intptr_t* interpretedVFrame::locals_addr_at(int offset) const { | |
233 assert(fr().is_interpreted_frame(), "frame should be an interpreted frame"); | |
234 return fr().interpreter_frame_local_at(offset); | |
235 } | |
236 | |
237 | |
238 GrowableArray<MonitorInfo*>* interpretedVFrame::monitors() const { | |
239 GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(5); | |
240 for (BasicObjectLock* current = (fr().previous_monitor_in_interpreter_frame(fr().interpreter_frame_monitor_begin())); | |
241 current >= fr().interpreter_frame_monitor_end(); | |
242 current = fr().previous_monitor_in_interpreter_frame(current)) { | |
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243 result->push(new MonitorInfo(current->obj(), current->lock(), false, false)); |
0 | 244 } |
245 return result; | |
246 } | |
247 | |
248 int interpretedVFrame::bci() const { | |
249 return method()->bci_from(bcp()); | |
250 } | |
251 | |
252 methodOop interpretedVFrame::method() const { | |
253 return fr().interpreter_frame_method(); | |
254 } | |
255 | |
256 StackValueCollection* interpretedVFrame::locals() const { | |
257 int length = method()->max_locals(); | |
258 | |
259 if (method()->is_native()) { | |
260 // If the method is native, max_locals is not telling the truth. | |
261 // maxlocals then equals the size of parameters | |
262 length = method()->size_of_parameters(); | |
263 } | |
264 | |
265 StackValueCollection* result = new StackValueCollection(length); | |
266 | |
267 // Get oopmap describing oops and int for current bci | |
1506 | 268 InterpreterOopMap oop_mask; |
269 if (TraceDeoptimization && Verbose) { | |
270 methodHandle m_h(thread(), method()); | |
271 OopMapCache::compute_one_oop_map(m_h, bci(), &oop_mask); | |
0 | 272 } else { |
1506 | 273 method()->mask_for(bci(), &oop_mask); |
274 } | |
275 // handle locals | |
276 for(int i=0; i < length; i++) { | |
277 // Find stack location | |
278 intptr_t *addr = locals_addr_at(i); | |
0 | 279 |
1506 | 280 // Depending on oop/int put it in the right package |
281 StackValue *sv; | |
282 if (oop_mask.is_oop(i)) { | |
283 // oop value | |
284 Handle h(*(oop *)addr); | |
285 sv = new StackValue(h); | |
286 } else { | |
287 // integer | |
288 sv = new StackValue(*addr); | |
0 | 289 } |
1506 | 290 assert(sv != NULL, "sanity check"); |
291 result->add(sv); | |
0 | 292 } |
293 return result; | |
294 } | |
295 | |
296 void interpretedVFrame::set_locals(StackValueCollection* values) const { | |
297 if (values == NULL || values->size() == 0) return; | |
298 | |
299 int length = method()->max_locals(); | |
300 if (method()->is_native()) { | |
301 // If the method is native, max_locals is not telling the truth. | |
302 // maxlocals then equals the size of parameters | |
303 length = method()->size_of_parameters(); | |
304 } | |
305 | |
306 assert(length == values->size(), "Mismatch between actual stack format and supplied data"); | |
307 | |
308 // handle locals | |
309 for (int i = 0; i < length; i++) { | |
310 // Find stack location | |
311 intptr_t *addr = locals_addr_at(i); | |
312 | |
313 // Depending on oop/int put it in the right package | |
314 StackValue *sv = values->at(i); | |
315 assert(sv != NULL, "sanity check"); | |
316 if (sv->type() == T_OBJECT) { | |
317 *(oop *) addr = (sv->get_obj())(); | |
318 } else { // integer | |
319 *addr = sv->get_int(); | |
320 } | |
321 } | |
322 } | |
323 | |
324 StackValueCollection* interpretedVFrame::expressions() const { | |
325 int length = fr().interpreter_frame_expression_stack_size(); | |
326 if (method()->is_native()) { | |
327 // If the method is native, there is no expression stack | |
328 length = 0; | |
329 } | |
330 | |
331 int nof_locals = method()->max_locals(); | |
332 StackValueCollection* result = new StackValueCollection(length); | |
333 | |
1506 | 334 InterpreterOopMap oop_mask; |
335 // Get oopmap describing oops and int for current bci | |
336 if (TraceDeoptimization && Verbose) { | |
337 methodHandle m_h(method()); | |
338 OopMapCache::compute_one_oop_map(m_h, bci(), &oop_mask); | |
0 | 339 } else { |
1506 | 340 method()->mask_for(bci(), &oop_mask); |
341 } | |
342 // handle expressions | |
343 for(int i=0; i < length; i++) { | |
344 // Find stack location | |
345 intptr_t *addr = fr().interpreter_frame_expression_stack_at(i); | |
0 | 346 |
1506 | 347 // Depending on oop/int put it in the right package |
348 StackValue *sv; | |
349 if (oop_mask.is_oop(i + nof_locals)) { | |
350 // oop value | |
351 Handle h(*(oop *)addr); | |
352 sv = new StackValue(h); | |
353 } else { | |
354 // integer | |
355 sv = new StackValue(*addr); | |
0 | 356 } |
1506 | 357 assert(sv != NULL, "sanity check"); |
358 result->add(sv); | |
0 | 359 } |
360 return result; | |
361 } | |
362 | |
363 | |
364 // ------------- cChunk -------------- | |
365 | |
366 entryVFrame::entryVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread) | |
367 : externalVFrame(fr, reg_map, thread) {} | |
368 | |
369 | |
370 void vframeStreamCommon::found_bad_method_frame() { | |
371 // 6379830 Cut point for an assertion that occasionally fires when | |
372 // we are using the performance analyzer. | |
373 // Disable this assert when testing the analyzer with fastdebug. | |
374 // -XX:SuppressErrorAt=vframe.cpp:XXX (XXX=following line number) | |
375 assert(false, "invalid bci or invalid scope desc"); | |
376 } | |
377 | |
378 // top-frame will be skipped | |
379 vframeStream::vframeStream(JavaThread* thread, frame top_frame, | |
380 bool stop_at_java_call_stub) : vframeStreamCommon(thread) { | |
381 _stop_at_java_call_stub = stop_at_java_call_stub; | |
382 | |
383 // skip top frame, as it may not be at safepoint | |
384 _frame = top_frame.sender(&_reg_map); | |
385 while (!fill_from_frame()) { | |
386 _frame = _frame.sender(&_reg_map); | |
387 } | |
388 } | |
389 | |
390 | |
391 // Step back n frames, skip any pseudo frames in between. | |
392 // This function is used in Class.forName, Class.newInstance, Method.Invoke, | |
393 // AccessController.doPrivileged. | |
394 // | |
395 // NOTE that in JDK 1.4 this has been exposed to Java as | |
396 // sun.reflect.Reflection.getCallerClass(), which can be inlined. | |
397 // Inlined versions must match this routine's logic. | |
398 // Native method prefixing logic does not need to match since | |
399 // the method names don't match and inlining will not occur. | |
400 // See, for example, | |
401 // Parse::inline_native_Reflection_getCallerClass in | |
402 // opto/library_call.cpp. | |
403 void vframeStreamCommon::security_get_caller_frame(int depth) { | |
404 bool use_new_reflection = JDK_Version::is_gte_jdk14x_version() && UseNewReflection; | |
405 | |
406 while (!at_end()) { | |
407 if (Universe::reflect_invoke_cache()->is_same_method(method())) { | |
408 // This is Method.invoke() -- skip it | |
409 } else if (use_new_reflection && | |
410 Klass::cast(method()->method_holder()) | |
1142 | 411 ->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass())) { |
0 | 412 // This is an auxilary frame -- skip it |
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413 } else if (method()->is_method_handle_adapter()) { |
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414 // This is an internal adapter frame from the MethodHandleCompiler -- skip it |
0 | 415 } else { |
416 // This is non-excluded frame, we need to count it against the depth | |
417 if (depth-- <= 0) { | |
418 // we have reached the desired depth, we are done | |
419 break; | |
420 } | |
421 } | |
422 if (method()->is_prefixed_native()) { | |
423 skip_prefixed_method_and_wrappers(); | |
424 } else { | |
425 next(); | |
426 } | |
427 } | |
428 } | |
429 | |
430 | |
431 void vframeStreamCommon::skip_prefixed_method_and_wrappers() { | |
432 ResourceMark rm; | |
433 HandleMark hm; | |
434 | |
435 int method_prefix_count = 0; | |
436 char** method_prefixes = JvmtiExport::get_all_native_method_prefixes(&method_prefix_count); | |
437 KlassHandle prefixed_klass(method()->method_holder()); | |
438 const char* prefixed_name = method()->name()->as_C_string(); | |
439 size_t prefixed_name_len = strlen(prefixed_name); | |
440 int prefix_index = method_prefix_count-1; | |
441 | |
442 while (!at_end()) { | |
443 next(); | |
444 if (method()->method_holder() != prefixed_klass()) { | |
445 break; // classes don't match, can't be a wrapper | |
446 } | |
447 const char* name = method()->name()->as_C_string(); | |
448 size_t name_len = strlen(name); | |
449 size_t prefix_len = prefixed_name_len - name_len; | |
450 if (prefix_len <= 0 || strcmp(name, prefixed_name + prefix_len) != 0) { | |
451 break; // prefixed name isn't prefixed version of method name, can't be a wrapper | |
452 } | |
453 for (; prefix_index >= 0; --prefix_index) { | |
454 const char* possible_prefix = method_prefixes[prefix_index]; | |
455 size_t possible_prefix_len = strlen(possible_prefix); | |
456 if (possible_prefix_len == prefix_len && | |
457 strncmp(possible_prefix, prefixed_name, prefix_len) == 0) { | |
458 break; // matching prefix found | |
459 } | |
460 } | |
461 if (prefix_index < 0) { | |
462 break; // didn't find the prefix, can't be a wrapper | |
463 } | |
464 prefixed_name = name; | |
465 prefixed_name_len = name_len; | |
466 } | |
467 } | |
468 | |
469 | |
470 void vframeStreamCommon::skip_reflection_related_frames() { | |
471 while (!at_end() && | |
472 (JDK_Version::is_gte_jdk14x_version() && UseNewReflection && | |
1142 | 473 (Klass::cast(method()->method_holder())->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass()) || |
474 Klass::cast(method()->method_holder())->is_subclass_of(SystemDictionary::reflect_ConstructorAccessorImpl_klass())))) { | |
0 | 475 next(); |
476 } | |
477 } | |
478 | |
479 | |
480 #ifndef PRODUCT | |
481 void vframe::print() { | |
482 if (WizardMode) _fr.print_value_on(tty,NULL); | |
483 } | |
484 | |
485 | |
486 void vframe::print_value() const { | |
487 ((vframe*)this)->print(); | |
488 } | |
489 | |
490 | |
491 void entryVFrame::print_value() const { | |
492 ((entryVFrame*)this)->print(); | |
493 } | |
494 | |
495 void entryVFrame::print() { | |
496 vframe::print(); | |
497 tty->print_cr("C Chunk inbetween Java"); | |
498 tty->print_cr("C link " INTPTR_FORMAT, _fr.link()); | |
499 } | |
500 | |
501 | |
502 // ------------- javaVFrame -------------- | |
503 | |
504 static void print_stack_values(const char* title, StackValueCollection* values) { | |
505 if (values->is_empty()) return; | |
506 tty->print_cr("\t%s:", title); | |
507 values->print(); | |
508 } | |
509 | |
510 | |
511 void javaVFrame::print() { | |
512 ResourceMark rm; | |
513 vframe::print(); | |
514 tty->print("\t"); | |
515 method()->print_value(); | |
516 tty->cr(); | |
517 tty->print_cr("\tbci: %d", bci()); | |
518 | |
519 print_stack_values("locals", locals()); | |
520 print_stack_values("expressions", expressions()); | |
521 | |
522 GrowableArray<MonitorInfo*>* list = monitors(); | |
523 if (list->is_empty()) return; | |
524 tty->print_cr("\tmonitor list:"); | |
525 for (int index = (list->length()-1); index >= 0; index--) { | |
526 MonitorInfo* monitor = list->at(index); | |
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527 tty->print("\t obj\t"); |
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528 if (monitor->owner_is_scalar_replaced()) { |
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529 Klass* k = Klass::cast(monitor->owner_klass()); |
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530 tty->print("( is scalar replaced %s)", k->external_name()); |
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531 } else if (monitor->owner() == NULL) { |
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532 tty->print("( null )"); |
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533 } else { |
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534 monitor->owner()->print_value(); |
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535 tty->print("(" INTPTR_FORMAT ")", (address)monitor->owner()); |
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536 } |
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537 if (monitor->eliminated() && is_compiled_frame()) |
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538 tty->print(" ( lock is eliminated )"); |
0 | 539 tty->cr(); |
540 tty->print("\t "); | |
541 monitor->lock()->print_on(tty); | |
542 tty->cr(); | |
543 } | |
544 } | |
545 | |
546 | |
547 void javaVFrame::print_value() const { | |
548 methodOop m = method(); | |
549 klassOop k = m->method_holder(); | |
550 tty->print_cr("frame( sp=" INTPTR_FORMAT ", unextended_sp=" INTPTR_FORMAT ", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT ")", | |
551 _fr.sp(), _fr.unextended_sp(), _fr.fp(), _fr.pc()); | |
552 tty->print("%s.%s", Klass::cast(k)->internal_name(), m->name()->as_C_string()); | |
553 | |
554 if (!m->is_native()) { | |
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555 Symbol* source_name = instanceKlass::cast(k)->source_file_name(); |
0 | 556 int line_number = m->line_number_from_bci(bci()); |
557 if (source_name != NULL && (line_number != -1)) { | |
558 tty->print("(%s:%d)", source_name->as_C_string(), line_number); | |
559 } | |
560 } else { | |
561 tty->print("(Native Method)"); | |
562 } | |
563 // Check frame size and print warning if it looks suspiciously large | |
564 if (fr().sp() != NULL) { | |
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565 RegisterMap map = *register_map(); |
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566 uint size = fr().frame_size(&map); |
0 | 567 #ifdef _LP64 |
568 if (size > 8*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); | |
569 #else | |
570 if (size > 4*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); | |
571 #endif | |
572 } | |
573 } | |
574 | |
575 | |
576 bool javaVFrame::structural_compare(javaVFrame* other) { | |
577 // Check static part | |
578 if (method() != other->method()) return false; | |
579 if (bci() != other->bci()) return false; | |
580 | |
581 // Check locals | |
582 StackValueCollection *locs = locals(); | |
583 StackValueCollection *other_locs = other->locals(); | |
584 assert(locs->size() == other_locs->size(), "sanity check"); | |
585 int i; | |
586 for(i = 0; i < locs->size(); i++) { | |
587 // it might happen the compiler reports a conflict and | |
588 // the interpreter reports a bogus int. | |
589 if ( is_compiled_frame() && locs->at(i)->type() == T_CONFLICT) continue; | |
590 if (other->is_compiled_frame() && other_locs->at(i)->type() == T_CONFLICT) continue; | |
591 | |
592 if (!locs->at(i)->equal(other_locs->at(i))) | |
593 return false; | |
594 } | |
595 | |
596 // Check expressions | |
597 StackValueCollection* exprs = expressions(); | |
598 StackValueCollection* other_exprs = other->expressions(); | |
599 assert(exprs->size() == other_exprs->size(), "sanity check"); | |
600 for(i = 0; i < exprs->size(); i++) { | |
601 if (!exprs->at(i)->equal(other_exprs->at(i))) | |
602 return false; | |
603 } | |
604 | |
605 return true; | |
606 } | |
607 | |
608 | |
609 void javaVFrame::print_activation(int index) const { | |
610 // frame number and method | |
611 tty->print("%2d - ", index); | |
612 ((vframe*)this)->print_value(); | |
613 tty->cr(); | |
614 | |
615 if (WizardMode) { | |
616 ((vframe*)this)->print(); | |
617 tty->cr(); | |
618 } | |
619 } | |
620 | |
621 | |
622 void javaVFrame::verify() const { | |
623 } | |
624 | |
625 | |
626 void interpretedVFrame::verify() const { | |
627 } | |
628 | |
629 | |
630 // ------------- externalVFrame -------------- | |
631 | |
632 void externalVFrame::print() { | |
633 _fr.print_value_on(tty,NULL); | |
634 } | |
635 | |
636 | |
637 void externalVFrame::print_value() const { | |
638 ((vframe*)this)->print(); | |
639 } | |
640 #endif // PRODUCT |