Mercurial > hg > truffle
annotate src/share/vm/runtime/vframeArray.cpp @ 839:bb18957ad21e
Merge
author | ysr |
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date | Fri, 10 Jul 2009 16:01:20 -0700 |
parents | b109e761e927 |
children | bd02caa94611 9987d9d5eb0e |
rev | line source |
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0 | 1 /* |
2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_vframeArray.cpp.incl" | |
27 | |
28 | |
29 int vframeArrayElement:: bci(void) const { return (_bci == SynchronizationEntryBCI ? 0 : _bci); } | |
30 | |
31 void vframeArrayElement::free_monitors(JavaThread* jt) { | |
32 if (_monitors != NULL) { | |
33 MonitorChunk* chunk = _monitors; | |
34 _monitors = NULL; | |
35 jt->remove_monitor_chunk(chunk); | |
36 delete chunk; | |
37 } | |
38 } | |
39 | |
40 void vframeArrayElement::fill_in(compiledVFrame* vf) { | |
41 | |
42 // Copy the information from the compiled vframe to the | |
43 // interpreter frame we will be creating to replace vf | |
44 | |
45 _method = vf->method(); | |
46 _bci = vf->raw_bci(); | |
47 | |
48 int index; | |
49 | |
50 // Get the monitors off-stack | |
51 | |
52 GrowableArray<MonitorInfo*>* list = vf->monitors(); | |
53 if (list->is_empty()) { | |
54 _monitors = NULL; | |
55 } else { | |
56 | |
57 // Allocate monitor chunk | |
58 _monitors = new MonitorChunk(list->length()); | |
59 vf->thread()->add_monitor_chunk(_monitors); | |
60 | |
61 // Migrate the BasicLocks from the stack to the monitor chunk | |
62 for (index = 0; index < list->length(); index++) { | |
63 MonitorInfo* monitor = list->at(index); | |
818
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6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
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64 assert(!monitor->owner_is_scalar_replaced(), "object should be reallocated already"); |
0 | 65 assert(monitor->owner() == NULL || (!monitor->owner()->is_unlocked() && !monitor->owner()->has_bias_pattern()), "object must be null or locked, and unbiased"); |
66 BasicObjectLock* dest = _monitors->at(index); | |
67 dest->set_obj(monitor->owner()); | |
68 monitor->lock()->move_to(monitor->owner(), dest->lock()); | |
69 } | |
70 } | |
71 | |
72 // Convert the vframe locals and expressions to off stack | |
73 // values. Because we will not gc all oops can be converted to | |
74 // intptr_t (i.e. a stack slot) and we are fine. This is | |
75 // good since we are inside a HandleMark and the oops in our | |
76 // collection would go away between packing them here and | |
77 // unpacking them in unpack_on_stack. | |
78 | |
79 // First the locals go off-stack | |
80 | |
81 // FIXME this seems silly it creates a StackValueCollection | |
82 // in order to get the size to then copy them and | |
83 // convert the types to intptr_t size slots. Seems like it | |
84 // could do it in place... Still uses less memory than the | |
85 // old way though | |
86 | |
87 StackValueCollection *locs = vf->locals(); | |
88 _locals = new StackValueCollection(locs->size()); | |
89 for(index = 0; index < locs->size(); index++) { | |
90 StackValue* value = locs->at(index); | |
91 switch(value->type()) { | |
92 case T_OBJECT: | |
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93 assert(!value->obj_is_scalar_replaced(), "object should be reallocated already"); |
0 | 94 // preserve object type |
95 _locals->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT )); | |
96 break; | |
97 case T_CONFLICT: | |
98 // A dead local. Will be initialized to null/zero. | |
99 _locals->add( new StackValue()); | |
100 break; | |
101 case T_INT: | |
102 _locals->add( new StackValue(value->get_int())); | |
103 break; | |
104 default: | |
105 ShouldNotReachHere(); | |
106 } | |
107 } | |
108 | |
109 // Now the expressions off-stack | |
110 // Same silliness as above | |
111 | |
112 StackValueCollection *exprs = vf->expressions(); | |
113 _expressions = new StackValueCollection(exprs->size()); | |
114 for(index = 0; index < exprs->size(); index++) { | |
115 StackValue* value = exprs->at(index); | |
116 switch(value->type()) { | |
117 case T_OBJECT: | |
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6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
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118 assert(!value->obj_is_scalar_replaced(), "object should be reallocated already"); |
0 | 119 // preserve object type |
120 _expressions->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT )); | |
121 break; | |
122 case T_CONFLICT: | |
123 // A dead stack element. Will be initialized to null/zero. | |
124 // This can occur when the compiler emits a state in which stack | |
125 // elements are known to be dead (because of an imminent exception). | |
126 _expressions->add( new StackValue()); | |
127 break; | |
128 case T_INT: | |
129 _expressions->add( new StackValue(value->get_int())); | |
130 break; | |
131 default: | |
132 ShouldNotReachHere(); | |
133 } | |
134 } | |
135 } | |
136 | |
137 int unpack_counter = 0; | |
138 | |
139 void vframeArrayElement::unpack_on_stack(int callee_parameters, | |
140 int callee_locals, | |
141 frame* caller, | |
142 bool is_top_frame, | |
143 int exec_mode) { | |
144 JavaThread* thread = (JavaThread*) Thread::current(); | |
145 | |
146 // Look at bci and decide on bcp and continuation pc | |
147 address bcp; | |
148 // C++ interpreter doesn't need a pc since it will figure out what to do when it | |
149 // begins execution | |
150 address pc; | |
151 bool use_next_mdp; // true if we should use the mdp associated with the next bci | |
152 // rather than the one associated with bcp | |
153 if (raw_bci() == SynchronizationEntryBCI) { | |
154 // We are deoptimizing while hanging in prologue code for synchronized method | |
155 bcp = method()->bcp_from(0); // first byte code | |
156 pc = Interpreter::deopt_entry(vtos, 0); // step = 0 since we don't skip current bytecode | |
157 use_next_mdp = false; | |
158 } else { | |
159 bcp = method()->bcp_from(bci()); | |
160 pc = Interpreter::continuation_for(method(), bcp, callee_parameters, is_top_frame, use_next_mdp); | |
161 } | |
162 assert(Bytecodes::is_defined(*bcp), "must be a valid bytecode"); | |
163 | |
164 // Monitorenter and pending exceptions: | |
165 // | |
166 // For Compiler2, there should be no pending exception when deoptimizing at monitorenter | |
167 // because there is no safepoint at the null pointer check (it is either handled explicitly | |
168 // or prior to the monitorenter) and asynchronous exceptions are not made "pending" by the | |
169 // runtime interface for the slow case (see JRT_ENTRY_FOR_MONITORENTER). If an asynchronous | |
170 // exception was processed, the bytecode pointer would have to be extended one bytecode beyond | |
171 // the monitorenter to place it in the proper exception range. | |
172 // | |
173 // For Compiler1, deoptimization can occur while throwing a NullPointerException at monitorenter, | |
174 // in which case bcp should point to the monitorenter since it is within the exception's range. | |
175 | |
176 assert(*bcp != Bytecodes::_monitorenter || is_top_frame, "a _monitorenter must be a top frame"); | |
177 // TIERED Must know the compiler of the deoptee QQQ | |
178 COMPILER2_PRESENT(guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception, | |
179 "shouldn't get exception during monitorenter");) | |
180 | |
181 int popframe_preserved_args_size_in_bytes = 0; | |
182 int popframe_preserved_args_size_in_words = 0; | |
183 if (is_top_frame) { | |
184 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
185 if (JvmtiExport::can_pop_frame() && | |
186 (thread->has_pending_popframe() || thread->popframe_forcing_deopt_reexecution())) { | |
187 if (thread->has_pending_popframe()) { | |
188 // Pop top frame after deoptimization | |
189 #ifndef CC_INTERP | |
190 pc = Interpreter::remove_activation_preserving_args_entry(); | |
191 #else | |
192 // Do an uncommon trap type entry. c++ interpreter will know | |
193 // to pop frame and preserve the args | |
194 pc = Interpreter::deopt_entry(vtos, 0); | |
195 use_next_mdp = false; | |
196 #endif | |
197 } else { | |
198 // Reexecute invoke in top frame | |
199 pc = Interpreter::deopt_entry(vtos, 0); | |
200 use_next_mdp = false; | |
201 popframe_preserved_args_size_in_bytes = in_bytes(thread->popframe_preserved_args_size()); | |
202 // Note: the PopFrame-related extension of the expression stack size is done in | |
203 // Deoptimization::fetch_unroll_info_helper | |
204 popframe_preserved_args_size_in_words = in_words(thread->popframe_preserved_args_size_in_words()); | |
205 } | |
206 } else if (JvmtiExport::can_force_early_return() && state != NULL && state->is_earlyret_pending()) { | |
207 // Force early return from top frame after deoptimization | |
208 #ifndef CC_INTERP | |
209 pc = Interpreter::remove_activation_early_entry(state->earlyret_tos()); | |
210 #else | |
211 // TBD: Need to implement ForceEarlyReturn for CC_INTERP (ia64) | |
212 #endif | |
213 } else { | |
214 // Possibly override the previous pc computation of the top (youngest) frame | |
215 switch (exec_mode) { | |
216 case Deoptimization::Unpack_deopt: | |
217 // use what we've got | |
218 break; | |
219 case Deoptimization::Unpack_exception: | |
220 // exception is pending | |
221 pc = SharedRuntime::raw_exception_handler_for_return_address(pc); | |
222 // [phh] We're going to end up in some handler or other, so it doesn't | |
223 // matter what mdp we point to. See exception_handler_for_exception() | |
224 // in interpreterRuntime.cpp. | |
225 break; | |
226 case Deoptimization::Unpack_uncommon_trap: | |
227 case Deoptimization::Unpack_reexecute: | |
228 // redo last byte code | |
229 pc = Interpreter::deopt_entry(vtos, 0); | |
230 use_next_mdp = false; | |
231 break; | |
232 default: | |
233 ShouldNotReachHere(); | |
234 } | |
235 } | |
236 } | |
237 | |
238 // Setup the interpreter frame | |
239 | |
240 assert(method() != NULL, "method must exist"); | |
241 int temps = expressions()->size(); | |
242 | |
243 int locks = monitors() == NULL ? 0 : monitors()->number_of_monitors(); | |
244 | |
245 Interpreter::layout_activation(method(), | |
246 temps + callee_parameters, | |
247 popframe_preserved_args_size_in_words, | |
248 locks, | |
249 callee_parameters, | |
250 callee_locals, | |
251 caller, | |
252 iframe(), | |
253 is_top_frame); | |
254 | |
255 // Update the pc in the frame object and overwrite the temporary pc | |
256 // we placed in the skeletal frame now that we finally know the | |
257 // exact interpreter address we should use. | |
258 | |
259 _frame.patch_pc(thread, pc); | |
260 | |
261 assert (!method()->is_synchronized() || locks > 0, "synchronized methods must have monitors"); | |
262 | |
263 BasicObjectLock* top = iframe()->interpreter_frame_monitor_begin(); | |
264 for (int index = 0; index < locks; index++) { | |
265 top = iframe()->previous_monitor_in_interpreter_frame(top); | |
266 BasicObjectLock* src = _monitors->at(index); | |
267 top->set_obj(src->obj()); | |
268 src->lock()->move_to(src->obj(), top->lock()); | |
269 } | |
270 if (ProfileInterpreter) { | |
271 iframe()->interpreter_frame_set_mdx(0); // clear out the mdp. | |
272 } | |
273 iframe()->interpreter_frame_set_bcx((intptr_t)bcp); // cannot use bcp because frame is not initialized yet | |
274 if (ProfileInterpreter) { | |
275 methodDataOop mdo = method()->method_data(); | |
276 if (mdo != NULL) { | |
277 int bci = iframe()->interpreter_frame_bci(); | |
278 if (use_next_mdp) ++bci; | |
279 address mdp = mdo->bci_to_dp(bci); | |
280 iframe()->interpreter_frame_set_mdp(mdp); | |
281 } | |
282 } | |
283 | |
284 // Unpack expression stack | |
285 // If this is an intermediate frame (i.e. not top frame) then this | |
286 // only unpacks the part of the expression stack not used by callee | |
287 // as parameters. The callee parameters are unpacked as part of the | |
288 // callee locals. | |
289 int i; | |
290 for(i = 0; i < expressions()->size(); i++) { | |
291 StackValue *value = expressions()->at(i); | |
292 intptr_t* addr = iframe()->interpreter_frame_expression_stack_at(i); | |
293 switch(value->type()) { | |
294 case T_INT: | |
295 *addr = value->get_int(); | |
296 break; | |
297 case T_OBJECT: | |
298 *addr = value->get_int(T_OBJECT); | |
299 break; | |
300 case T_CONFLICT: | |
301 // A dead stack slot. Initialize to null in case it is an oop. | |
302 *addr = NULL_WORD; | |
303 break; | |
304 default: | |
305 ShouldNotReachHere(); | |
306 } | |
307 if (TaggedStackInterpreter) { | |
308 // Write tag to the stack | |
309 iframe()->interpreter_frame_set_expression_stack_tag(i, | |
310 frame::tag_for_basic_type(value->type())); | |
311 } | |
312 } | |
313 | |
314 | |
315 // Unpack the locals | |
316 for(i = 0; i < locals()->size(); i++) { | |
317 StackValue *value = locals()->at(i); | |
318 intptr_t* addr = iframe()->interpreter_frame_local_at(i); | |
319 switch(value->type()) { | |
320 case T_INT: | |
321 *addr = value->get_int(); | |
322 break; | |
323 case T_OBJECT: | |
324 *addr = value->get_int(T_OBJECT); | |
325 break; | |
326 case T_CONFLICT: | |
327 // A dead location. If it is an oop then we need a NULL to prevent GC from following it | |
328 *addr = NULL_WORD; | |
329 break; | |
330 default: | |
331 ShouldNotReachHere(); | |
332 } | |
333 if (TaggedStackInterpreter) { | |
334 // Write tag to stack | |
335 iframe()->interpreter_frame_set_local_tag(i, | |
336 frame::tag_for_basic_type(value->type())); | |
337 } | |
338 } | |
339 | |
340 if (is_top_frame && JvmtiExport::can_pop_frame() && thread->popframe_forcing_deopt_reexecution()) { | |
341 // An interpreted frame was popped but it returns to a deoptimized | |
342 // frame. The incoming arguments to the interpreted activation | |
343 // were preserved in thread-local storage by the | |
344 // remove_activation_preserving_args_entry in the interpreter; now | |
345 // we put them back into the just-unpacked interpreter frame. | |
346 // Note that this assumes that the locals arena grows toward lower | |
347 // addresses. | |
348 if (popframe_preserved_args_size_in_words != 0) { | |
349 void* saved_args = thread->popframe_preserved_args(); | |
350 assert(saved_args != NULL, "must have been saved by interpreter"); | |
351 #ifdef ASSERT | |
352 int stack_words = Interpreter::stackElementWords(); | |
353 assert(popframe_preserved_args_size_in_words <= | |
354 iframe()->interpreter_frame_expression_stack_size()*stack_words, | |
355 "expression stack size should have been extended"); | |
356 #endif // ASSERT | |
357 int top_element = iframe()->interpreter_frame_expression_stack_size()-1; | |
358 intptr_t* base; | |
359 if (frame::interpreter_frame_expression_stack_direction() < 0) { | |
360 base = iframe()->interpreter_frame_expression_stack_at(top_element); | |
361 } else { | |
362 base = iframe()->interpreter_frame_expression_stack(); | |
363 } | |
364 Copy::conjoint_bytes(saved_args, | |
365 base, | |
366 popframe_preserved_args_size_in_bytes); | |
367 thread->popframe_free_preserved_args(); | |
368 } | |
369 } | |
370 | |
371 #ifndef PRODUCT | |
372 if (TraceDeoptimization && Verbose) { | |
373 ttyLocker ttyl; | |
374 tty->print_cr("[%d Interpreted Frame]", ++unpack_counter); | |
375 iframe()->print_on(tty); | |
376 RegisterMap map(thread); | |
377 vframe* f = vframe::new_vframe(iframe(), &map, thread); | |
378 f->print(); | |
379 iframe()->interpreter_frame_print_on(tty); | |
380 | |
381 tty->print_cr("locals size %d", locals()->size()); | |
382 tty->print_cr("expression size %d", expressions()->size()); | |
383 | |
384 method()->print_value(); | |
385 tty->cr(); | |
386 // method()->print_codes(); | |
387 } else if (TraceDeoptimization) { | |
388 tty->print(" "); | |
389 method()->print_value(); | |
390 Bytecodes::Code code = Bytecodes::java_code_at(bcp); | |
391 int bci = method()->bci_from(bcp); | |
392 tty->print(" - %s", Bytecodes::name(code)); | |
393 tty->print(" @ bci %d ", bci); | |
394 tty->print_cr("sp = " PTR_FORMAT, iframe()->sp()); | |
395 } | |
396 #endif // PRODUCT | |
397 | |
398 // The expression stack and locals are in the resource area don't leave | |
399 // a dangling pointer in the vframeArray we leave around for debug | |
400 // purposes | |
401 | |
402 _locals = _expressions = NULL; | |
403 | |
404 } | |
405 | |
406 int vframeArrayElement::on_stack_size(int callee_parameters, | |
407 int callee_locals, | |
408 bool is_top_frame, | |
409 int popframe_extra_stack_expression_els) const { | |
410 assert(method()->max_locals() == locals()->size(), "just checking"); | |
411 int locks = monitors() == NULL ? 0 : monitors()->number_of_monitors(); | |
412 int temps = expressions()->size(); | |
413 return Interpreter::size_activation(method(), | |
414 temps + callee_parameters, | |
415 popframe_extra_stack_expression_els, | |
416 locks, | |
417 callee_parameters, | |
418 callee_locals, | |
419 is_top_frame); | |
420 } | |
421 | |
422 | |
423 | |
424 vframeArray* vframeArray::allocate(JavaThread* thread, int frame_size, GrowableArray<compiledVFrame*>* chunk, | |
425 RegisterMap *reg_map, frame sender, frame caller, frame self) { | |
426 | |
427 // Allocate the vframeArray | |
428 vframeArray * result = (vframeArray*) AllocateHeap(sizeof(vframeArray) + // fixed part | |
429 sizeof(vframeArrayElement) * (chunk->length() - 1), // variable part | |
430 "vframeArray::allocate"); | |
431 result->_frames = chunk->length(); | |
432 result->_owner_thread = thread; | |
433 result->_sender = sender; | |
434 result->_caller = caller; | |
435 result->_original = self; | |
436 result->set_unroll_block(NULL); // initialize it | |
437 result->fill_in(thread, frame_size, chunk, reg_map); | |
438 return result; | |
439 } | |
440 | |
441 void vframeArray::fill_in(JavaThread* thread, | |
442 int frame_size, | |
443 GrowableArray<compiledVFrame*>* chunk, | |
444 const RegisterMap *reg_map) { | |
445 // Set owner first, it is used when adding monitor chunks | |
446 | |
447 _frame_size = frame_size; | |
448 for(int i = 0; i < chunk->length(); i++) { | |
449 element(i)->fill_in(chunk->at(i)); | |
450 } | |
451 | |
452 // Copy registers for callee-saved registers | |
453 if (reg_map != NULL) { | |
454 for(int i = 0; i < RegisterMap::reg_count; i++) { | |
455 #ifdef AMD64 | |
456 // The register map has one entry for every int (32-bit value), so | |
457 // 64-bit physical registers have two entries in the map, one for | |
458 // each half. Ignore the high halves of 64-bit registers, just like | |
459 // frame::oopmapreg_to_location does. | |
460 // | |
461 // [phh] FIXME: this is a temporary hack! This code *should* work | |
462 // correctly w/o this hack, possibly by changing RegisterMap::pd_location | |
463 // in frame_amd64.cpp and the values of the phantom high half registers | |
464 // in amd64.ad. | |
465 // if (VMReg::Name(i) < SharedInfo::stack0 && is_even(i)) { | |
466 intptr_t* src = (intptr_t*) reg_map->location(VMRegImpl::as_VMReg(i)); | |
467 _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
468 // } else { | |
469 // jint* src = (jint*) reg_map->location(VMReg::Name(i)); | |
470 // _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
471 // } | |
472 #else | |
473 jint* src = (jint*) reg_map->location(VMRegImpl::as_VMReg(i)); | |
474 _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
475 #endif | |
476 if (src == NULL) { | |
477 set_location_valid(i, false); | |
478 } else { | |
479 set_location_valid(i, true); | |
480 jint* dst = (jint*) register_location(i); | |
481 *dst = *src; | |
482 } | |
483 } | |
484 } | |
485 } | |
486 | |
487 void vframeArray::unpack_to_stack(frame &unpack_frame, int exec_mode) { | |
488 // stack picture | |
489 // unpack_frame | |
490 // [new interpreter frames ] (frames are skeletal but walkable) | |
491 // caller_frame | |
492 // | |
493 // This routine fills in the missing data for the skeletal interpreter frames | |
494 // in the above picture. | |
495 | |
496 // Find the skeletal interpreter frames to unpack into | |
497 RegisterMap map(JavaThread::current(), false); | |
498 // Get the youngest frame we will unpack (last to be unpacked) | |
499 frame me = unpack_frame.sender(&map); | |
500 int index; | |
501 for (index = 0; index < frames(); index++ ) { | |
502 *element(index)->iframe() = me; | |
503 // Get the caller frame (possibly skeletal) | |
504 me = me.sender(&map); | |
505 } | |
506 | |
507 frame caller_frame = me; | |
508 | |
509 // Do the unpacking of interpreter frames; the frame at index 0 represents the top activation, so it has no callee | |
510 | |
511 // Unpack the frames from the oldest (frames() -1) to the youngest (0) | |
512 | |
513 for (index = frames() - 1; index >= 0 ; index--) { | |
514 int callee_parameters = index == 0 ? 0 : element(index-1)->method()->size_of_parameters(); | |
515 int callee_locals = index == 0 ? 0 : element(index-1)->method()->max_locals(); | |
516 element(index)->unpack_on_stack(callee_parameters, | |
517 callee_locals, | |
518 &caller_frame, | |
519 index == 0, | |
520 exec_mode); | |
521 if (index == frames() - 1) { | |
522 Deoptimization::unwind_callee_save_values(element(index)->iframe(), this); | |
523 } | |
524 caller_frame = *element(index)->iframe(); | |
525 } | |
526 | |
527 | |
528 deallocate_monitor_chunks(); | |
529 } | |
530 | |
531 void vframeArray::deallocate_monitor_chunks() { | |
532 JavaThread* jt = JavaThread::current(); | |
533 for (int index = 0; index < frames(); index++ ) { | |
534 element(index)->free_monitors(jt); | |
535 } | |
536 } | |
537 | |
538 #ifndef PRODUCT | |
539 | |
540 bool vframeArray::structural_compare(JavaThread* thread, GrowableArray<compiledVFrame*>* chunk) { | |
541 if (owner_thread() != thread) return false; | |
542 int index = 0; | |
543 #if 0 // FIXME can't do this comparison | |
544 | |
545 // Compare only within vframe array. | |
546 for (deoptimizedVFrame* vf = deoptimizedVFrame::cast(vframe_at(first_index())); vf; vf = vf->deoptimized_sender_or_null()) { | |
547 if (index >= chunk->length() || !vf->structural_compare(chunk->at(index))) return false; | |
548 index++; | |
549 } | |
550 if (index != chunk->length()) return false; | |
551 #endif | |
552 | |
553 return true; | |
554 } | |
555 | |
556 #endif | |
557 | |
558 address vframeArray::register_location(int i) const { | |
559 assert(0 <= i && i < RegisterMap::reg_count, "index out of bounds"); | |
560 return (address) & _callee_registers[i]; | |
561 } | |
562 | |
563 | |
564 #ifndef PRODUCT | |
565 | |
566 // Printing | |
567 | |
568 // Note: we cannot have print_on as const, as we allocate inside the method | |
569 void vframeArray::print_on_2(outputStream* st) { | |
570 st->print_cr(" - sp: " INTPTR_FORMAT, sp()); | |
571 st->print(" - thread: "); | |
572 Thread::current()->print(); | |
573 st->print_cr(" - frame size: %d", frame_size()); | |
574 for (int index = 0; index < frames() ; index++ ) { | |
575 element(index)->print(st); | |
576 } | |
577 } | |
578 | |
579 void vframeArrayElement::print(outputStream* st) { | |
580 st->print_cr(" - interpreter_frame -> sp: ", INTPTR_FORMAT, iframe()->sp()); | |
581 } | |
582 | |
583 void vframeArray::print_value_on(outputStream* st) const { | |
584 st->print_cr("vframeArray [%d] ", frames()); | |
585 } | |
586 | |
587 | |
588 #endif |