Mercurial > hg > truffle
annotate src/share/vm/runtime/vframe.cpp @ 15313:74c3ceb55e57
Override asNode() in FloatingNode and FixedWithNextNode.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Tue, 22 Apr 2014 16:21:37 +0200 |
parents | 4ca6dc0799b6 |
children | 89152779163c |
rev | line source |
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0 | 1 /* |
14909 | 2 * Copyright (c) 1997, 2012, 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()) { |
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149 Klass* target_klass = java_lang_Class::as_Klass(obj()); |
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150 st->print_cr("(a java.lang.Class for %s)", InstanceKlass::cast(target_klass)->external_name()); |
0 | 151 } else { |
6983 | 152 Klass* k = obj->klass(); |
0 | 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() && | |
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164 method()->method_holder()->name() == vmSymbols::java_lang_Object()) { |
0 | 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(); | |
6983 | 175 Klass* k = obj->klass(); |
0 | 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 = java_lang_Class::as_Klass(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 | |
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252 Method* interpretedVFrame::method() const { |
0 | 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; |
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269 if ((TraceDeoptimization && Verbose) GRAAL_ONLY( || PrintDeoptimizationDetails)) { |
1506 | 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 | |
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336 if ((TraceDeoptimization && Verbose) GRAAL_ONLY( || PrintDeoptimizationDetails)) { |
1506 | 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 void vframeStreamCommon::security_get_caller_frame(int depth) { | |
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395 assert(depth >= 0, err_msg("invalid depth: %d", depth)); |
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396 for (int n = 0; !at_end(); security_next()) { |
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397 if (!method()->is_ignored_by_security_stack_walk()) { |
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398 if (n == depth) { |
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399 // We have reached the desired depth; return. |
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400 return; |
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401 } |
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402 n++; // this is a non-skipped frame; count it against the depth |
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403 } |
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404 } |
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405 // NOTE: At this point there were not enough frames on the stack |
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406 // to walk to depth. Callers of this method have to check for at_end. |
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407 } |
0 | 408 |
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409 |
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410 void vframeStreamCommon::security_next() { |
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411 if (method()->is_prefixed_native()) { |
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412 skip_prefixed_method_and_wrappers(); // calls next() |
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413 } else { |
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414 next(); |
0 | 415 } |
416 } | |
417 | |
418 | |
419 void vframeStreamCommon::skip_prefixed_method_and_wrappers() { | |
420 ResourceMark rm; | |
421 HandleMark hm; | |
422 | |
423 int method_prefix_count = 0; | |
424 char** method_prefixes = JvmtiExport::get_all_native_method_prefixes(&method_prefix_count); | |
425 KlassHandle prefixed_klass(method()->method_holder()); | |
426 const char* prefixed_name = method()->name()->as_C_string(); | |
427 size_t prefixed_name_len = strlen(prefixed_name); | |
428 int prefix_index = method_prefix_count-1; | |
429 | |
430 while (!at_end()) { | |
431 next(); | |
432 if (method()->method_holder() != prefixed_klass()) { | |
433 break; // classes don't match, can't be a wrapper | |
434 } | |
435 const char* name = method()->name()->as_C_string(); | |
436 size_t name_len = strlen(name); | |
437 size_t prefix_len = prefixed_name_len - name_len; | |
438 if (prefix_len <= 0 || strcmp(name, prefixed_name + prefix_len) != 0) { | |
439 break; // prefixed name isn't prefixed version of method name, can't be a wrapper | |
440 } | |
441 for (; prefix_index >= 0; --prefix_index) { | |
442 const char* possible_prefix = method_prefixes[prefix_index]; | |
443 size_t possible_prefix_len = strlen(possible_prefix); | |
444 if (possible_prefix_len == prefix_len && | |
445 strncmp(possible_prefix, prefixed_name, prefix_len) == 0) { | |
446 break; // matching prefix found | |
447 } | |
448 } | |
449 if (prefix_index < 0) { | |
450 break; // didn't find the prefix, can't be a wrapper | |
451 } | |
452 prefixed_name = name; | |
453 prefixed_name_len = name_len; | |
454 } | |
455 } | |
456 | |
457 | |
458 void vframeStreamCommon::skip_reflection_related_frames() { | |
459 while (!at_end() && | |
460 (JDK_Version::is_gte_jdk14x_version() && UseNewReflection && | |
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461 (method()->method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass()) || |
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462 method()->method_holder()->is_subclass_of(SystemDictionary::reflect_ConstructorAccessorImpl_klass())))) { |
0 | 463 next(); |
464 } | |
465 } | |
466 | |
467 | |
468 #ifndef PRODUCT | |
469 void vframe::print() { | |
470 if (WizardMode) _fr.print_value_on(tty,NULL); | |
471 } | |
472 | |
473 | |
474 void vframe::print_value() const { | |
475 ((vframe*)this)->print(); | |
476 } | |
477 | |
478 | |
479 void entryVFrame::print_value() const { | |
480 ((entryVFrame*)this)->print(); | |
481 } | |
482 | |
483 void entryVFrame::print() { | |
484 vframe::print(); | |
485 tty->print_cr("C Chunk inbetween Java"); | |
486 tty->print_cr("C link " INTPTR_FORMAT, _fr.link()); | |
487 } | |
488 | |
489 | |
490 // ------------- javaVFrame -------------- | |
491 | |
492 static void print_stack_values(const char* title, StackValueCollection* values) { | |
493 if (values->is_empty()) return; | |
494 tty->print_cr("\t%s:", title); | |
495 values->print(); | |
496 } | |
497 | |
498 | |
499 void javaVFrame::print() { | |
500 ResourceMark rm; | |
501 vframe::print(); | |
502 tty->print("\t"); | |
503 method()->print_value(); | |
504 tty->cr(); | |
505 tty->print_cr("\tbci: %d", bci()); | |
506 | |
507 print_stack_values("locals", locals()); | |
508 print_stack_values("expressions", expressions()); | |
509 | |
510 GrowableArray<MonitorInfo*>* list = monitors(); | |
511 if (list->is_empty()) return; | |
512 tty->print_cr("\tmonitor list:"); | |
513 for (int index = (list->length()-1); index >= 0; index--) { | |
514 MonitorInfo* monitor = list->at(index); | |
818
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515 tty->print("\t obj\t"); |
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516 if (monitor->owner_is_scalar_replaced()) { |
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517 Klass* k = java_lang_Class::as_Klass(monitor->owner_klass()); |
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518 tty->print("( is scalar replaced %s)", k->external_name()); |
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519 } else if (monitor->owner() == NULL) { |
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520 tty->print("( null )"); |
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521 } else { |
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522 monitor->owner()->print_value(); |
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523 tty->print("(" INTPTR_FORMAT ")", (address)monitor->owner()); |
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524 } |
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525 if (monitor->eliminated() && is_compiled_frame()) |
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526 tty->print(" ( lock is eliminated )"); |
0 | 527 tty->cr(); |
528 tty->print("\t "); | |
529 monitor->lock()->print_on(tty); | |
530 tty->cr(); | |
531 } | |
532 } | |
533 | |
534 | |
535 void javaVFrame::print_value() const { | |
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536 Method* m = method(); |
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537 InstanceKlass* k = m->method_holder(); |
0 | 538 tty->print_cr("frame( sp=" INTPTR_FORMAT ", unextended_sp=" INTPTR_FORMAT ", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT ")", |
539 _fr.sp(), _fr.unextended_sp(), _fr.fp(), _fr.pc()); | |
6983 | 540 tty->print("%s.%s", k->internal_name(), m->name()->as_C_string()); |
0 | 541 |
542 if (!m->is_native()) { | |
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543 Symbol* source_name = k->source_file_name(); |
0 | 544 int line_number = m->line_number_from_bci(bci()); |
545 if (source_name != NULL && (line_number != -1)) { | |
546 tty->print("(%s:%d)", source_name->as_C_string(), line_number); | |
547 } | |
548 } else { | |
549 tty->print("(Native Method)"); | |
550 } | |
551 // Check frame size and print warning if it looks suspiciously large | |
552 if (fr().sp() != NULL) { | |
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553 RegisterMap map = *register_map(); |
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554 uint size = fr().frame_size(&map); |
0 | 555 #ifdef _LP64 |
556 if (size > 8*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); | |
557 #else | |
558 if (size > 4*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size); | |
559 #endif | |
560 } | |
561 } | |
562 | |
563 | |
564 bool javaVFrame::structural_compare(javaVFrame* other) { | |
565 // Check static part | |
566 if (method() != other->method()) return false; | |
567 if (bci() != other->bci()) return false; | |
568 | |
569 // Check locals | |
570 StackValueCollection *locs = locals(); | |
571 StackValueCollection *other_locs = other->locals(); | |
572 assert(locs->size() == other_locs->size(), "sanity check"); | |
573 int i; | |
574 for(i = 0; i < locs->size(); i++) { | |
575 // it might happen the compiler reports a conflict and | |
576 // the interpreter reports a bogus int. | |
577 if ( is_compiled_frame() && locs->at(i)->type() == T_CONFLICT) continue; | |
578 if (other->is_compiled_frame() && other_locs->at(i)->type() == T_CONFLICT) continue; | |
579 | |
580 if (!locs->at(i)->equal(other_locs->at(i))) | |
581 return false; | |
582 } | |
583 | |
584 // Check expressions | |
585 StackValueCollection* exprs = expressions(); | |
586 StackValueCollection* other_exprs = other->expressions(); | |
587 assert(exprs->size() == other_exprs->size(), "sanity check"); | |
588 for(i = 0; i < exprs->size(); i++) { | |
589 if (!exprs->at(i)->equal(other_exprs->at(i))) | |
590 return false; | |
591 } | |
592 | |
593 return true; | |
594 } | |
595 | |
596 | |
597 void javaVFrame::print_activation(int index) const { | |
598 // frame number and method | |
599 tty->print("%2d - ", index); | |
600 ((vframe*)this)->print_value(); | |
601 tty->cr(); | |
602 | |
603 if (WizardMode) { | |
604 ((vframe*)this)->print(); | |
605 tty->cr(); | |
606 } | |
607 } | |
608 | |
609 | |
610 void javaVFrame::verify() const { | |
611 } | |
612 | |
613 | |
614 void interpretedVFrame::verify() const { | |
615 } | |
616 | |
617 | |
618 // ------------- externalVFrame -------------- | |
619 | |
620 void externalVFrame::print() { | |
621 _fr.print_value_on(tty,NULL); | |
622 } | |
623 | |
624 | |
625 void externalVFrame::print_value() const { | |
626 ((vframe*)this)->print(); | |
627 } | |
628 #endif // PRODUCT |