Mercurial > hg > truffle
comparison src/share/vm/runtime/vframeArray.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | b109e761e927 |
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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); | |
64 assert(monitor->owner() == NULL || (!monitor->owner()->is_unlocked() && !monitor->owner()->has_bias_pattern()), "object must be null or locked, and unbiased"); | |
65 BasicObjectLock* dest = _monitors->at(index); | |
66 dest->set_obj(monitor->owner()); | |
67 monitor->lock()->move_to(monitor->owner(), dest->lock()); | |
68 } | |
69 } | |
70 | |
71 // Convert the vframe locals and expressions to off stack | |
72 // values. Because we will not gc all oops can be converted to | |
73 // intptr_t (i.e. a stack slot) and we are fine. This is | |
74 // good since we are inside a HandleMark and the oops in our | |
75 // collection would go away between packing them here and | |
76 // unpacking them in unpack_on_stack. | |
77 | |
78 // First the locals go off-stack | |
79 | |
80 // FIXME this seems silly it creates a StackValueCollection | |
81 // in order to get the size to then copy them and | |
82 // convert the types to intptr_t size slots. Seems like it | |
83 // could do it in place... Still uses less memory than the | |
84 // old way though | |
85 | |
86 StackValueCollection *locs = vf->locals(); | |
87 _locals = new StackValueCollection(locs->size()); | |
88 for(index = 0; index < locs->size(); index++) { | |
89 StackValue* value = locs->at(index); | |
90 switch(value->type()) { | |
91 case T_OBJECT: | |
92 // preserve object type | |
93 _locals->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT )); | |
94 break; | |
95 case T_CONFLICT: | |
96 // A dead local. Will be initialized to null/zero. | |
97 _locals->add( new StackValue()); | |
98 break; | |
99 case T_INT: | |
100 _locals->add( new StackValue(value->get_int())); | |
101 break; | |
102 default: | |
103 ShouldNotReachHere(); | |
104 } | |
105 } | |
106 | |
107 // Now the expressions off-stack | |
108 // Same silliness as above | |
109 | |
110 StackValueCollection *exprs = vf->expressions(); | |
111 _expressions = new StackValueCollection(exprs->size()); | |
112 for(index = 0; index < exprs->size(); index++) { | |
113 StackValue* value = exprs->at(index); | |
114 switch(value->type()) { | |
115 case T_OBJECT: | |
116 // preserve object type | |
117 _expressions->add( new StackValue((intptr_t) (value->get_obj()()), T_OBJECT )); | |
118 break; | |
119 case T_CONFLICT: | |
120 // A dead stack element. Will be initialized to null/zero. | |
121 // This can occur when the compiler emits a state in which stack | |
122 // elements are known to be dead (because of an imminent exception). | |
123 _expressions->add( new StackValue()); | |
124 break; | |
125 case T_INT: | |
126 _expressions->add( new StackValue(value->get_int())); | |
127 break; | |
128 default: | |
129 ShouldNotReachHere(); | |
130 } | |
131 } | |
132 } | |
133 | |
134 int unpack_counter = 0; | |
135 | |
136 void vframeArrayElement::unpack_on_stack(int callee_parameters, | |
137 int callee_locals, | |
138 frame* caller, | |
139 bool is_top_frame, | |
140 int exec_mode) { | |
141 JavaThread* thread = (JavaThread*) Thread::current(); | |
142 | |
143 // Look at bci and decide on bcp and continuation pc | |
144 address bcp; | |
145 // C++ interpreter doesn't need a pc since it will figure out what to do when it | |
146 // begins execution | |
147 address pc; | |
148 bool use_next_mdp; // true if we should use the mdp associated with the next bci | |
149 // rather than the one associated with bcp | |
150 if (raw_bci() == SynchronizationEntryBCI) { | |
151 // We are deoptimizing while hanging in prologue code for synchronized method | |
152 bcp = method()->bcp_from(0); // first byte code | |
153 pc = Interpreter::deopt_entry(vtos, 0); // step = 0 since we don't skip current bytecode | |
154 use_next_mdp = false; | |
155 } else { | |
156 bcp = method()->bcp_from(bci()); | |
157 pc = Interpreter::continuation_for(method(), bcp, callee_parameters, is_top_frame, use_next_mdp); | |
158 } | |
159 assert(Bytecodes::is_defined(*bcp), "must be a valid bytecode"); | |
160 | |
161 // Monitorenter and pending exceptions: | |
162 // | |
163 // For Compiler2, there should be no pending exception when deoptimizing at monitorenter | |
164 // because there is no safepoint at the null pointer check (it is either handled explicitly | |
165 // or prior to the monitorenter) and asynchronous exceptions are not made "pending" by the | |
166 // runtime interface for the slow case (see JRT_ENTRY_FOR_MONITORENTER). If an asynchronous | |
167 // exception was processed, the bytecode pointer would have to be extended one bytecode beyond | |
168 // the monitorenter to place it in the proper exception range. | |
169 // | |
170 // For Compiler1, deoptimization can occur while throwing a NullPointerException at monitorenter, | |
171 // in which case bcp should point to the monitorenter since it is within the exception's range. | |
172 | |
173 assert(*bcp != Bytecodes::_monitorenter || is_top_frame, "a _monitorenter must be a top frame"); | |
174 // TIERED Must know the compiler of the deoptee QQQ | |
175 COMPILER2_PRESENT(guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception, | |
176 "shouldn't get exception during monitorenter");) | |
177 | |
178 int popframe_preserved_args_size_in_bytes = 0; | |
179 int popframe_preserved_args_size_in_words = 0; | |
180 if (is_top_frame) { | |
181 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
182 if (JvmtiExport::can_pop_frame() && | |
183 (thread->has_pending_popframe() || thread->popframe_forcing_deopt_reexecution())) { | |
184 if (thread->has_pending_popframe()) { | |
185 // Pop top frame after deoptimization | |
186 #ifndef CC_INTERP | |
187 pc = Interpreter::remove_activation_preserving_args_entry(); | |
188 #else | |
189 // Do an uncommon trap type entry. c++ interpreter will know | |
190 // to pop frame and preserve the args | |
191 pc = Interpreter::deopt_entry(vtos, 0); | |
192 use_next_mdp = false; | |
193 #endif | |
194 } else { | |
195 // Reexecute invoke in top frame | |
196 pc = Interpreter::deopt_entry(vtos, 0); | |
197 use_next_mdp = false; | |
198 popframe_preserved_args_size_in_bytes = in_bytes(thread->popframe_preserved_args_size()); | |
199 // Note: the PopFrame-related extension of the expression stack size is done in | |
200 // Deoptimization::fetch_unroll_info_helper | |
201 popframe_preserved_args_size_in_words = in_words(thread->popframe_preserved_args_size_in_words()); | |
202 } | |
203 } else if (JvmtiExport::can_force_early_return() && state != NULL && state->is_earlyret_pending()) { | |
204 // Force early return from top frame after deoptimization | |
205 #ifndef CC_INTERP | |
206 pc = Interpreter::remove_activation_early_entry(state->earlyret_tos()); | |
207 #else | |
208 // TBD: Need to implement ForceEarlyReturn for CC_INTERP (ia64) | |
209 #endif | |
210 } else { | |
211 // Possibly override the previous pc computation of the top (youngest) frame | |
212 switch (exec_mode) { | |
213 case Deoptimization::Unpack_deopt: | |
214 // use what we've got | |
215 break; | |
216 case Deoptimization::Unpack_exception: | |
217 // exception is pending | |
218 pc = SharedRuntime::raw_exception_handler_for_return_address(pc); | |
219 // [phh] We're going to end up in some handler or other, so it doesn't | |
220 // matter what mdp we point to. See exception_handler_for_exception() | |
221 // in interpreterRuntime.cpp. | |
222 break; | |
223 case Deoptimization::Unpack_uncommon_trap: | |
224 case Deoptimization::Unpack_reexecute: | |
225 // redo last byte code | |
226 pc = Interpreter::deopt_entry(vtos, 0); | |
227 use_next_mdp = false; | |
228 break; | |
229 default: | |
230 ShouldNotReachHere(); | |
231 } | |
232 } | |
233 } | |
234 | |
235 // Setup the interpreter frame | |
236 | |
237 assert(method() != NULL, "method must exist"); | |
238 int temps = expressions()->size(); | |
239 | |
240 int locks = monitors() == NULL ? 0 : monitors()->number_of_monitors(); | |
241 | |
242 Interpreter::layout_activation(method(), | |
243 temps + callee_parameters, | |
244 popframe_preserved_args_size_in_words, | |
245 locks, | |
246 callee_parameters, | |
247 callee_locals, | |
248 caller, | |
249 iframe(), | |
250 is_top_frame); | |
251 | |
252 // Update the pc in the frame object and overwrite the temporary pc | |
253 // we placed in the skeletal frame now that we finally know the | |
254 // exact interpreter address we should use. | |
255 | |
256 _frame.patch_pc(thread, pc); | |
257 | |
258 assert (!method()->is_synchronized() || locks > 0, "synchronized methods must have monitors"); | |
259 | |
260 BasicObjectLock* top = iframe()->interpreter_frame_monitor_begin(); | |
261 for (int index = 0; index < locks; index++) { | |
262 top = iframe()->previous_monitor_in_interpreter_frame(top); | |
263 BasicObjectLock* src = _monitors->at(index); | |
264 top->set_obj(src->obj()); | |
265 src->lock()->move_to(src->obj(), top->lock()); | |
266 } | |
267 if (ProfileInterpreter) { | |
268 iframe()->interpreter_frame_set_mdx(0); // clear out the mdp. | |
269 } | |
270 iframe()->interpreter_frame_set_bcx((intptr_t)bcp); // cannot use bcp because frame is not initialized yet | |
271 if (ProfileInterpreter) { | |
272 methodDataOop mdo = method()->method_data(); | |
273 if (mdo != NULL) { | |
274 int bci = iframe()->interpreter_frame_bci(); | |
275 if (use_next_mdp) ++bci; | |
276 address mdp = mdo->bci_to_dp(bci); | |
277 iframe()->interpreter_frame_set_mdp(mdp); | |
278 } | |
279 } | |
280 | |
281 // Unpack expression stack | |
282 // If this is an intermediate frame (i.e. not top frame) then this | |
283 // only unpacks the part of the expression stack not used by callee | |
284 // as parameters. The callee parameters are unpacked as part of the | |
285 // callee locals. | |
286 int i; | |
287 for(i = 0; i < expressions()->size(); i++) { | |
288 StackValue *value = expressions()->at(i); | |
289 intptr_t* addr = iframe()->interpreter_frame_expression_stack_at(i); | |
290 switch(value->type()) { | |
291 case T_INT: | |
292 *addr = value->get_int(); | |
293 break; | |
294 case T_OBJECT: | |
295 *addr = value->get_int(T_OBJECT); | |
296 break; | |
297 case T_CONFLICT: | |
298 // A dead stack slot. Initialize to null in case it is an oop. | |
299 *addr = NULL_WORD; | |
300 break; | |
301 default: | |
302 ShouldNotReachHere(); | |
303 } | |
304 if (TaggedStackInterpreter) { | |
305 // Write tag to the stack | |
306 iframe()->interpreter_frame_set_expression_stack_tag(i, | |
307 frame::tag_for_basic_type(value->type())); | |
308 } | |
309 } | |
310 | |
311 | |
312 // Unpack the locals | |
313 for(i = 0; i < locals()->size(); i++) { | |
314 StackValue *value = locals()->at(i); | |
315 intptr_t* addr = iframe()->interpreter_frame_local_at(i); | |
316 switch(value->type()) { | |
317 case T_INT: | |
318 *addr = value->get_int(); | |
319 break; | |
320 case T_OBJECT: | |
321 *addr = value->get_int(T_OBJECT); | |
322 break; | |
323 case T_CONFLICT: | |
324 // A dead location. If it is an oop then we need a NULL to prevent GC from following it | |
325 *addr = NULL_WORD; | |
326 break; | |
327 default: | |
328 ShouldNotReachHere(); | |
329 } | |
330 if (TaggedStackInterpreter) { | |
331 // Write tag to stack | |
332 iframe()->interpreter_frame_set_local_tag(i, | |
333 frame::tag_for_basic_type(value->type())); | |
334 } | |
335 } | |
336 | |
337 if (is_top_frame && JvmtiExport::can_pop_frame() && thread->popframe_forcing_deopt_reexecution()) { | |
338 // An interpreted frame was popped but it returns to a deoptimized | |
339 // frame. The incoming arguments to the interpreted activation | |
340 // were preserved in thread-local storage by the | |
341 // remove_activation_preserving_args_entry in the interpreter; now | |
342 // we put them back into the just-unpacked interpreter frame. | |
343 // Note that this assumes that the locals arena grows toward lower | |
344 // addresses. | |
345 if (popframe_preserved_args_size_in_words != 0) { | |
346 void* saved_args = thread->popframe_preserved_args(); | |
347 assert(saved_args != NULL, "must have been saved by interpreter"); | |
348 #ifdef ASSERT | |
349 int stack_words = Interpreter::stackElementWords(); | |
350 assert(popframe_preserved_args_size_in_words <= | |
351 iframe()->interpreter_frame_expression_stack_size()*stack_words, | |
352 "expression stack size should have been extended"); | |
353 #endif // ASSERT | |
354 int top_element = iframe()->interpreter_frame_expression_stack_size()-1; | |
355 intptr_t* base; | |
356 if (frame::interpreter_frame_expression_stack_direction() < 0) { | |
357 base = iframe()->interpreter_frame_expression_stack_at(top_element); | |
358 } else { | |
359 base = iframe()->interpreter_frame_expression_stack(); | |
360 } | |
361 Copy::conjoint_bytes(saved_args, | |
362 base, | |
363 popframe_preserved_args_size_in_bytes); | |
364 thread->popframe_free_preserved_args(); | |
365 } | |
366 } | |
367 | |
368 #ifndef PRODUCT | |
369 if (TraceDeoptimization && Verbose) { | |
370 ttyLocker ttyl; | |
371 tty->print_cr("[%d Interpreted Frame]", ++unpack_counter); | |
372 iframe()->print_on(tty); | |
373 RegisterMap map(thread); | |
374 vframe* f = vframe::new_vframe(iframe(), &map, thread); | |
375 f->print(); | |
376 iframe()->interpreter_frame_print_on(tty); | |
377 | |
378 tty->print_cr("locals size %d", locals()->size()); | |
379 tty->print_cr("expression size %d", expressions()->size()); | |
380 | |
381 method()->print_value(); | |
382 tty->cr(); | |
383 // method()->print_codes(); | |
384 } else if (TraceDeoptimization) { | |
385 tty->print(" "); | |
386 method()->print_value(); | |
387 Bytecodes::Code code = Bytecodes::java_code_at(bcp); | |
388 int bci = method()->bci_from(bcp); | |
389 tty->print(" - %s", Bytecodes::name(code)); | |
390 tty->print(" @ bci %d ", bci); | |
391 tty->print_cr("sp = " PTR_FORMAT, iframe()->sp()); | |
392 } | |
393 #endif // PRODUCT | |
394 | |
395 // The expression stack and locals are in the resource area don't leave | |
396 // a dangling pointer in the vframeArray we leave around for debug | |
397 // purposes | |
398 | |
399 _locals = _expressions = NULL; | |
400 | |
401 } | |
402 | |
403 int vframeArrayElement::on_stack_size(int callee_parameters, | |
404 int callee_locals, | |
405 bool is_top_frame, | |
406 int popframe_extra_stack_expression_els) const { | |
407 assert(method()->max_locals() == locals()->size(), "just checking"); | |
408 int locks = monitors() == NULL ? 0 : monitors()->number_of_monitors(); | |
409 int temps = expressions()->size(); | |
410 return Interpreter::size_activation(method(), | |
411 temps + callee_parameters, | |
412 popframe_extra_stack_expression_els, | |
413 locks, | |
414 callee_parameters, | |
415 callee_locals, | |
416 is_top_frame); | |
417 } | |
418 | |
419 | |
420 | |
421 vframeArray* vframeArray::allocate(JavaThread* thread, int frame_size, GrowableArray<compiledVFrame*>* chunk, | |
422 RegisterMap *reg_map, frame sender, frame caller, frame self) { | |
423 | |
424 // Allocate the vframeArray | |
425 vframeArray * result = (vframeArray*) AllocateHeap(sizeof(vframeArray) + // fixed part | |
426 sizeof(vframeArrayElement) * (chunk->length() - 1), // variable part | |
427 "vframeArray::allocate"); | |
428 result->_frames = chunk->length(); | |
429 result->_owner_thread = thread; | |
430 result->_sender = sender; | |
431 result->_caller = caller; | |
432 result->_original = self; | |
433 result->set_unroll_block(NULL); // initialize it | |
434 result->fill_in(thread, frame_size, chunk, reg_map); | |
435 return result; | |
436 } | |
437 | |
438 void vframeArray::fill_in(JavaThread* thread, | |
439 int frame_size, | |
440 GrowableArray<compiledVFrame*>* chunk, | |
441 const RegisterMap *reg_map) { | |
442 // Set owner first, it is used when adding monitor chunks | |
443 | |
444 _frame_size = frame_size; | |
445 for(int i = 0; i < chunk->length(); i++) { | |
446 element(i)->fill_in(chunk->at(i)); | |
447 } | |
448 | |
449 // Copy registers for callee-saved registers | |
450 if (reg_map != NULL) { | |
451 for(int i = 0; i < RegisterMap::reg_count; i++) { | |
452 #ifdef AMD64 | |
453 // The register map has one entry for every int (32-bit value), so | |
454 // 64-bit physical registers have two entries in the map, one for | |
455 // each half. Ignore the high halves of 64-bit registers, just like | |
456 // frame::oopmapreg_to_location does. | |
457 // | |
458 // [phh] FIXME: this is a temporary hack! This code *should* work | |
459 // correctly w/o this hack, possibly by changing RegisterMap::pd_location | |
460 // in frame_amd64.cpp and the values of the phantom high half registers | |
461 // in amd64.ad. | |
462 // if (VMReg::Name(i) < SharedInfo::stack0 && is_even(i)) { | |
463 intptr_t* src = (intptr_t*) reg_map->location(VMRegImpl::as_VMReg(i)); | |
464 _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
465 // } else { | |
466 // jint* src = (jint*) reg_map->location(VMReg::Name(i)); | |
467 // _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
468 // } | |
469 #else | |
470 jint* src = (jint*) reg_map->location(VMRegImpl::as_VMReg(i)); | |
471 _callee_registers[i] = src != NULL ? *src : NULL_WORD; | |
472 #endif | |
473 if (src == NULL) { | |
474 set_location_valid(i, false); | |
475 } else { | |
476 set_location_valid(i, true); | |
477 jint* dst = (jint*) register_location(i); | |
478 *dst = *src; | |
479 } | |
480 } | |
481 } | |
482 } | |
483 | |
484 void vframeArray::unpack_to_stack(frame &unpack_frame, int exec_mode) { | |
485 // stack picture | |
486 // unpack_frame | |
487 // [new interpreter frames ] (frames are skeletal but walkable) | |
488 // caller_frame | |
489 // | |
490 // This routine fills in the missing data for the skeletal interpreter frames | |
491 // in the above picture. | |
492 | |
493 // Find the skeletal interpreter frames to unpack into | |
494 RegisterMap map(JavaThread::current(), false); | |
495 // Get the youngest frame we will unpack (last to be unpacked) | |
496 frame me = unpack_frame.sender(&map); | |
497 int index; | |
498 for (index = 0; index < frames(); index++ ) { | |
499 *element(index)->iframe() = me; | |
500 // Get the caller frame (possibly skeletal) | |
501 me = me.sender(&map); | |
502 } | |
503 | |
504 frame caller_frame = me; | |
505 | |
506 // Do the unpacking of interpreter frames; the frame at index 0 represents the top activation, so it has no callee | |
507 | |
508 // Unpack the frames from the oldest (frames() -1) to the youngest (0) | |
509 | |
510 for (index = frames() - 1; index >= 0 ; index--) { | |
511 int callee_parameters = index == 0 ? 0 : element(index-1)->method()->size_of_parameters(); | |
512 int callee_locals = index == 0 ? 0 : element(index-1)->method()->max_locals(); | |
513 element(index)->unpack_on_stack(callee_parameters, | |
514 callee_locals, | |
515 &caller_frame, | |
516 index == 0, | |
517 exec_mode); | |
518 if (index == frames() - 1) { | |
519 Deoptimization::unwind_callee_save_values(element(index)->iframe(), this); | |
520 } | |
521 caller_frame = *element(index)->iframe(); | |
522 } | |
523 | |
524 | |
525 deallocate_monitor_chunks(); | |
526 } | |
527 | |
528 void vframeArray::deallocate_monitor_chunks() { | |
529 JavaThread* jt = JavaThread::current(); | |
530 for (int index = 0; index < frames(); index++ ) { | |
531 element(index)->free_monitors(jt); | |
532 } | |
533 } | |
534 | |
535 #ifndef PRODUCT | |
536 | |
537 bool vframeArray::structural_compare(JavaThread* thread, GrowableArray<compiledVFrame*>* chunk) { | |
538 if (owner_thread() != thread) return false; | |
539 int index = 0; | |
540 #if 0 // FIXME can't do this comparison | |
541 | |
542 // Compare only within vframe array. | |
543 for (deoptimizedVFrame* vf = deoptimizedVFrame::cast(vframe_at(first_index())); vf; vf = vf->deoptimized_sender_or_null()) { | |
544 if (index >= chunk->length() || !vf->structural_compare(chunk->at(index))) return false; | |
545 index++; | |
546 } | |
547 if (index != chunk->length()) return false; | |
548 #endif | |
549 | |
550 return true; | |
551 } | |
552 | |
553 #endif | |
554 | |
555 address vframeArray::register_location(int i) const { | |
556 assert(0 <= i && i < RegisterMap::reg_count, "index out of bounds"); | |
557 return (address) & _callee_registers[i]; | |
558 } | |
559 | |
560 | |
561 #ifndef PRODUCT | |
562 | |
563 // Printing | |
564 | |
565 // Note: we cannot have print_on as const, as we allocate inside the method | |
566 void vframeArray::print_on_2(outputStream* st) { | |
567 st->print_cr(" - sp: " INTPTR_FORMAT, sp()); | |
568 st->print(" - thread: "); | |
569 Thread::current()->print(); | |
570 st->print_cr(" - frame size: %d", frame_size()); | |
571 for (int index = 0; index < frames() ; index++ ) { | |
572 element(index)->print(st); | |
573 } | |
574 } | |
575 | |
576 void vframeArrayElement::print(outputStream* st) { | |
577 st->print_cr(" - interpreter_frame -> sp: ", INTPTR_FORMAT, iframe()->sp()); | |
578 } | |
579 | |
580 void vframeArray::print_value_on(outputStream* st) const { | |
581 st->print_cr("vframeArray [%d] ", frames()); | |
582 } | |
583 | |
584 | |
585 #endif |