Mercurial > hg > truffle
annotate src/share/vm/runtime/frame.cpp @ 8009:80518f4ecf32
Merge
author | jmasa |
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date | Mon, 04 Feb 2013 12:51:25 -0800 |
parents | d2f8c38e543d |
children | 291ffc492eb6 c40fbf634c90 |
rev | line source |
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0 | 1 /* |
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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" |
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26 #include "compiler/disassembler.hpp" |
1972 | 27 #include "gc_interface/collectedHeap.inline.hpp" |
28 #include "interpreter/interpreter.hpp" | |
29 #include "interpreter/oopMapCache.hpp" | |
30 #include "memory/resourceArea.hpp" | |
31 #include "memory/universe.inline.hpp" | |
32 #include "oops/markOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
1972 | 35 #include "oops/oop.inline.hpp" |
36 #include "oops/oop.inline2.hpp" | |
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37 #include "prims/methodHandles.hpp" |
1972 | 38 #include "runtime/frame.inline.hpp" |
39 #include "runtime/handles.inline.hpp" | |
40 #include "runtime/javaCalls.hpp" | |
41 #include "runtime/monitorChunk.hpp" | |
42 #include "runtime/sharedRuntime.hpp" | |
43 #include "runtime/signature.hpp" | |
44 #include "runtime/stubCodeGenerator.hpp" | |
45 #include "runtime/stubRoutines.hpp" | |
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46 #include "utilities/decoder.hpp" |
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47 |
1972 | 48 #ifdef TARGET_ARCH_x86 |
49 # include "nativeInst_x86.hpp" | |
50 #endif | |
51 #ifdef TARGET_ARCH_sparc | |
52 # include "nativeInst_sparc.hpp" | |
53 #endif | |
54 #ifdef TARGET_ARCH_zero | |
55 # include "nativeInst_zero.hpp" | |
56 #endif | |
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57 #ifdef TARGET_ARCH_arm |
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58 # include "nativeInst_arm.hpp" |
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59 #endif |
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60 #ifdef TARGET_ARCH_ppc |
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61 # include "nativeInst_ppc.hpp" |
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62 #endif |
0 | 63 |
64 RegisterMap::RegisterMap(JavaThread *thread, bool update_map) { | |
65 _thread = thread; | |
66 _update_map = update_map; | |
67 clear(); | |
68 debug_only(_update_for_id = NULL;) | |
69 #ifndef PRODUCT | |
70 for (int i = 0; i < reg_count ; i++ ) _location[i] = NULL; | |
71 #endif /* PRODUCT */ | |
72 } | |
73 | |
74 RegisterMap::RegisterMap(const RegisterMap* map) { | |
75 assert(map != this, "bad initialization parameter"); | |
76 assert(map != NULL, "RegisterMap must be present"); | |
77 _thread = map->thread(); | |
78 _update_map = map->update_map(); | |
79 _include_argument_oops = map->include_argument_oops(); | |
80 debug_only(_update_for_id = map->_update_for_id;) | |
81 pd_initialize_from(map); | |
82 if (update_map()) { | |
83 for(int i = 0; i < location_valid_size; i++) { | |
84 LocationValidType bits = !update_map() ? 0 : map->_location_valid[i]; | |
85 _location_valid[i] = bits; | |
86 // for whichever bits are set, pull in the corresponding map->_location | |
87 int j = i*location_valid_type_size; | |
88 while (bits != 0) { | |
89 if ((bits & 1) != 0) { | |
90 assert(0 <= j && j < reg_count, "range check"); | |
91 _location[j] = map->_location[j]; | |
92 } | |
93 bits >>= 1; | |
94 j += 1; | |
95 } | |
96 } | |
97 } | |
98 } | |
99 | |
100 void RegisterMap::clear() { | |
101 set_include_argument_oops(true); | |
102 if (_update_map) { | |
103 for(int i = 0; i < location_valid_size; i++) { | |
104 _location_valid[i] = 0; | |
105 } | |
106 pd_clear(); | |
107 } else { | |
108 pd_initialize(); | |
109 } | |
110 } | |
111 | |
112 #ifndef PRODUCT | |
113 | |
114 void RegisterMap::print_on(outputStream* st) const { | |
115 st->print_cr("Register map"); | |
116 for(int i = 0; i < reg_count; i++) { | |
117 | |
118 VMReg r = VMRegImpl::as_VMReg(i); | |
119 intptr_t* src = (intptr_t*) location(r); | |
120 if (src != NULL) { | |
121 | |
417 | 122 r->print_on(st); |
123 st->print(" [" INTPTR_FORMAT "] = ", src); | |
0 | 124 if (((uintptr_t)src & (sizeof(*src)-1)) != 0) { |
417 | 125 st->print_cr("<misaligned>"); |
0 | 126 } else { |
417 | 127 st->print_cr(INTPTR_FORMAT, *src); |
0 | 128 } |
129 } | |
130 } | |
131 } | |
132 | |
133 void RegisterMap::print() const { | |
134 print_on(tty); | |
135 } | |
136 | |
137 #endif | |
138 // This returns the pc that if you were in the debugger you'd see. Not | |
139 // the idealized value in the frame object. This undoes the magic conversion | |
140 // that happens for deoptimized frames. In addition it makes the value the | |
141 // hardware would want to see in the native frame. The only user (at this point) | |
142 // is deoptimization. It likely no one else should ever use it. | |
143 | |
144 address frame::raw_pc() const { | |
145 if (is_deoptimized_frame()) { | |
1204 | 146 nmethod* nm = cb()->as_nmethod_or_null(); |
147 if (nm->is_method_handle_return(pc())) | |
148 return nm->deopt_mh_handler_begin() - pc_return_offset; | |
149 else | |
150 return nm->deopt_handler_begin() - pc_return_offset; | |
0 | 151 } else { |
152 return (pc() - pc_return_offset); | |
153 } | |
154 } | |
155 | |
156 // Change the pc in a frame object. This does not change the actual pc in | |
157 // actual frame. To do that use patch_pc. | |
158 // | |
159 void frame::set_pc(address newpc ) { | |
160 #ifdef ASSERT | |
161 if (_cb != NULL && _cb->is_nmethod()) { | |
162 assert(!((nmethod*)_cb)->is_deopt_pc(_pc), "invariant violation"); | |
163 } | |
164 #endif // ASSERT | |
165 | |
166 // Unsafe to use the is_deoptimzed tester after changing pc | |
167 _deopt_state = unknown; | |
168 _pc = newpc; | |
169 _cb = CodeCache::find_blob_unsafe(_pc); | |
170 | |
171 } | |
172 | |
173 // type testers | |
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174 bool frame::is_ignored_frame() const { |
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175 return false; // FIXME: some LambdaForm frames should be ignored |
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176 } |
0 | 177 bool frame::is_deoptimized_frame() const { |
178 assert(_deopt_state != unknown, "not answerable"); | |
179 return _deopt_state == is_deoptimized; | |
180 } | |
181 | |
182 bool frame::is_native_frame() const { | |
183 return (_cb != NULL && | |
184 _cb->is_nmethod() && | |
185 ((nmethod*)_cb)->is_native_method()); | |
186 } | |
187 | |
188 bool frame::is_java_frame() const { | |
189 if (is_interpreted_frame()) return true; | |
190 if (is_compiled_frame()) return true; | |
191 return false; | |
192 } | |
193 | |
194 | |
195 bool frame::is_compiled_frame() const { | |
196 if (_cb != NULL && | |
197 _cb->is_nmethod() && | |
198 ((nmethod*)_cb)->is_java_method()) { | |
199 return true; | |
200 } | |
201 return false; | |
202 } | |
203 | |
204 | |
205 bool frame::is_runtime_frame() const { | |
206 return (_cb != NULL && _cb->is_runtime_stub()); | |
207 } | |
208 | |
209 bool frame::is_safepoint_blob_frame() const { | |
210 return (_cb != NULL && _cb->is_safepoint_stub()); | |
211 } | |
212 | |
213 // testers | |
214 | |
215 bool frame::is_first_java_frame() const { | |
216 RegisterMap map(JavaThread::current(), false); // No update | |
217 frame s; | |
218 for (s = sender(&map); !(s.is_java_frame() || s.is_first_frame()); s = s.sender(&map)); | |
219 return s.is_first_frame(); | |
220 } | |
221 | |
222 | |
223 bool frame::entry_frame_is_first() const { | |
224 return entry_frame_call_wrapper()->anchor()->last_Java_sp() == NULL; | |
225 } | |
226 | |
227 | |
228 bool frame::should_be_deoptimized() const { | |
229 if (_deopt_state == is_deoptimized || | |
230 !is_compiled_frame() ) return false; | |
231 assert(_cb != NULL && _cb->is_nmethod(), "must be an nmethod"); | |
232 nmethod* nm = (nmethod *)_cb; | |
233 if (TraceDependencies) { | |
234 tty->print("checking (%s) ", nm->is_marked_for_deoptimization() ? "true" : "false"); | |
235 nm->print_value_on(tty); | |
236 tty->cr(); | |
237 } | |
238 | |
239 if( !nm->is_marked_for_deoptimization() ) | |
240 return false; | |
241 | |
242 // If at the return point, then the frame has already been popped, and | |
243 // only the return needs to be executed. Don't deoptimize here. | |
244 return !nm->is_at_poll_return(pc()); | |
245 } | |
246 | |
247 bool frame::can_be_deoptimized() const { | |
248 if (!is_compiled_frame()) return false; | |
249 nmethod* nm = (nmethod*)_cb; | |
250 | |
251 if( !nm->can_be_deoptimized() ) | |
252 return false; | |
253 | |
254 return !nm->is_at_poll_return(pc()); | |
255 } | |
256 | |
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257 void frame::deoptimize(JavaThread* thread) { |
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258 // Schedule deoptimization of an nmethod activation with this frame. |
0 | 259 assert(_cb != NULL && _cb->is_nmethod(), "must be"); |
260 nmethod* nm = (nmethod*)_cb; | |
261 | |
262 // This is a fix for register window patching race | |
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263 if (NeedsDeoptSuspend && Thread::current() != thread) { |
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264 assert(SafepointSynchronize::is_at_safepoint(), |
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265 "patching other threads for deopt may only occur at a safepoint"); |
0 | 266 |
267 // It is possible especially with DeoptimizeALot/DeoptimizeRandom that | |
268 // we could see the frame again and ask for it to be deoptimized since | |
269 // it might move for a long time. That is harmless and we just ignore it. | |
270 if (id() == thread->must_deopt_id()) { | |
271 assert(thread->is_deopt_suspend(), "lost suspension"); | |
272 return; | |
273 } | |
274 | |
275 // We are at a safepoint so the target thread can only be | |
276 // in 4 states: | |
277 // blocked - no problem | |
278 // blocked_trans - no problem (i.e. could have woken up from blocked | |
279 // during a safepoint). | |
280 // native - register window pc patching race | |
281 // native_trans - momentary state | |
282 // | |
283 // We could just wait out a thread in native_trans to block. | |
284 // Then we'd have all the issues that the safepoint code has as to | |
285 // whether to spin or block. It isn't worth it. Just treat it like | |
286 // native and be done with it. | |
287 // | |
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288 // Examine the state of the thread at the start of safepoint since |
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289 // threads that were in native at the start of the safepoint could |
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290 // come to a halt during the safepoint, changing the current value |
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291 // of the safepoint_state. |
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292 JavaThreadState state = thread->safepoint_state()->orig_thread_state(); |
0 | 293 if (state == _thread_in_native || state == _thread_in_native_trans) { |
294 // Since we are at a safepoint the target thread will stop itself | |
295 // before it can return to java as long as we remain at the safepoint. | |
296 // Therefore we can put an additional request for the thread to stop | |
297 // no matter what no (like a suspend). This will cause the thread | |
298 // to notice it needs to do the deopt on its own once it leaves native. | |
299 // | |
300 // The only reason we must do this is because on machine with register | |
301 // windows we have a race with patching the return address and the | |
302 // window coming live as the thread returns to the Java code (but still | |
303 // in native mode) and then blocks. It is only this top most frame | |
304 // that is at risk. So in truth we could add an additional check to | |
305 // see if this frame is one that is at risk. | |
306 RegisterMap map(thread, false); | |
307 frame at_risk = thread->last_frame().sender(&map); | |
308 if (id() == at_risk.id()) { | |
309 thread->set_must_deopt_id(id()); | |
310 thread->set_deopt_suspend(); | |
311 return; | |
312 } | |
313 } | |
314 } // NeedsDeoptSuspend | |
315 | |
316 | |
1204 | 317 // If the call site is a MethodHandle call site use the MH deopt |
318 // handler. | |
319 address deopt = nm->is_method_handle_return(pc()) ? | |
320 nm->deopt_mh_handler_begin() : | |
321 nm->deopt_handler_begin(); | |
322 | |
0 | 323 // Save the original pc before we patch in the new one |
324 nm->set_original_pc(this, pc()); | |
325 patch_pc(thread, deopt); | |
1204 | 326 |
0 | 327 #ifdef ASSERT |
328 { | |
329 RegisterMap map(thread, false); | |
330 frame check = thread->last_frame(); | |
331 while (id() != check.id()) { | |
332 check = check.sender(&map); | |
333 } | |
334 assert(check.is_deoptimized_frame(), "missed deopt"); | |
335 } | |
336 #endif // ASSERT | |
337 } | |
338 | |
339 frame frame::java_sender() const { | |
340 RegisterMap map(JavaThread::current(), false); | |
341 frame s; | |
342 for (s = sender(&map); !(s.is_java_frame() || s.is_first_frame()); s = s.sender(&map)) ; | |
343 guarantee(s.is_java_frame(), "tried to get caller of first java frame"); | |
344 return s; | |
345 } | |
346 | |
347 frame frame::real_sender(RegisterMap* map) const { | |
348 frame result = sender(map); | |
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349 while (result.is_runtime_frame() || |
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350 result.is_ignored_frame()) { |
0 | 351 result = result.sender(map); |
352 } | |
353 return result; | |
354 } | |
355 | |
356 // Note: called by profiler - NOT for current thread | |
357 frame frame::profile_find_Java_sender_frame(JavaThread *thread) { | |
358 // If we don't recognize this frame, walk back up the stack until we do | |
359 RegisterMap map(thread, false); | |
360 frame first_java_frame = frame(); | |
361 | |
362 // Find the first Java frame on the stack starting with input frame | |
363 if (is_java_frame()) { | |
364 // top frame is compiled frame or deoptimized frame | |
365 first_java_frame = *this; | |
366 } else if (safe_for_sender(thread)) { | |
367 for (frame sender_frame = sender(&map); | |
368 sender_frame.safe_for_sender(thread) && !sender_frame.is_first_frame(); | |
369 sender_frame = sender_frame.sender(&map)) { | |
370 if (sender_frame.is_java_frame()) { | |
371 first_java_frame = sender_frame; | |
372 break; | |
373 } | |
374 } | |
375 } | |
376 return first_java_frame; | |
377 } | |
378 | |
379 // Interpreter frames | |
380 | |
381 | |
382 void frame::interpreter_frame_set_locals(intptr_t* locs) { | |
383 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
384 *interpreter_frame_locals_addr() = locs; | |
385 } | |
386 | |
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387 Method* frame::interpreter_frame_method() const { |
0 | 388 assert(is_interpreted_frame(), "interpreted frame expected"); |
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389 Method* m = *interpreter_frame_method_addr(); |
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390 assert(m->is_metadata(), "bad Method* in interpreter frame"); |
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391 assert(m->is_method(), "not a Method*"); |
0 | 392 return m; |
393 } | |
394 | |
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395 void frame::interpreter_frame_set_method(Method* method) { |
0 | 396 assert(is_interpreted_frame(), "interpreted frame expected"); |
397 *interpreter_frame_method_addr() = method; | |
398 } | |
399 | |
400 void frame::interpreter_frame_set_bcx(intptr_t bcx) { | |
401 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
402 if (ProfileInterpreter) { | |
403 bool formerly_bci = is_bci(interpreter_frame_bcx()); | |
404 bool is_now_bci = is_bci(bcx); | |
405 *interpreter_frame_bcx_addr() = bcx; | |
406 | |
407 intptr_t mdx = interpreter_frame_mdx(); | |
408 | |
409 if (mdx != 0) { | |
410 if (formerly_bci) { | |
411 if (!is_now_bci) { | |
412 // The bcx was just converted from bci to bcp. | |
413 // Convert the mdx in parallel. | |
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414 MethodData* mdo = interpreter_frame_method()->method_data(); |
0 | 415 assert(mdo != NULL, ""); |
416 int mdi = mdx - 1; // We distinguish valid mdi from zero by adding one. | |
417 address mdp = mdo->di_to_dp(mdi); | |
418 interpreter_frame_set_mdx((intptr_t)mdp); | |
419 } | |
420 } else { | |
421 if (is_now_bci) { | |
422 // The bcx was just converted from bcp to bci. | |
423 // Convert the mdx in parallel. | |
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424 MethodData* mdo = interpreter_frame_method()->method_data(); |
0 | 425 assert(mdo != NULL, ""); |
426 int mdi = mdo->dp_to_di((address)mdx); | |
427 interpreter_frame_set_mdx((intptr_t)mdi + 1); // distinguish valid from 0. | |
428 } | |
429 } | |
430 } | |
431 } else { | |
432 *interpreter_frame_bcx_addr() = bcx; | |
433 } | |
434 } | |
435 | |
436 jint frame::interpreter_frame_bci() const { | |
437 assert(is_interpreted_frame(), "interpreted frame expected"); | |
438 intptr_t bcx = interpreter_frame_bcx(); | |
439 return is_bci(bcx) ? bcx : interpreter_frame_method()->bci_from((address)bcx); | |
440 } | |
441 | |
442 void frame::interpreter_frame_set_bci(jint bci) { | |
443 assert(is_interpreted_frame(), "interpreted frame expected"); | |
444 assert(!is_bci(interpreter_frame_bcx()), "should not set bci during GC"); | |
445 interpreter_frame_set_bcx((intptr_t)interpreter_frame_method()->bcp_from(bci)); | |
446 } | |
447 | |
448 address frame::interpreter_frame_bcp() const { | |
449 assert(is_interpreted_frame(), "interpreted frame expected"); | |
450 intptr_t bcx = interpreter_frame_bcx(); | |
451 return is_bci(bcx) ? interpreter_frame_method()->bcp_from(bcx) : (address)bcx; | |
452 } | |
453 | |
454 void frame::interpreter_frame_set_bcp(address bcp) { | |
455 assert(is_interpreted_frame(), "interpreted frame expected"); | |
456 assert(!is_bci(interpreter_frame_bcx()), "should not set bcp during GC"); | |
457 interpreter_frame_set_bcx((intptr_t)bcp); | |
458 } | |
459 | |
460 void frame::interpreter_frame_set_mdx(intptr_t mdx) { | |
461 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
462 assert(ProfileInterpreter, "must be profiling interpreter"); | |
463 *interpreter_frame_mdx_addr() = mdx; | |
464 } | |
465 | |
466 address frame::interpreter_frame_mdp() const { | |
467 assert(ProfileInterpreter, "must be profiling interpreter"); | |
468 assert(is_interpreted_frame(), "interpreted frame expected"); | |
469 intptr_t bcx = interpreter_frame_bcx(); | |
470 intptr_t mdx = interpreter_frame_mdx(); | |
471 | |
472 assert(!is_bci(bcx), "should not access mdp during GC"); | |
473 return (address)mdx; | |
474 } | |
475 | |
476 void frame::interpreter_frame_set_mdp(address mdp) { | |
477 assert(is_interpreted_frame(), "interpreted frame expected"); | |
478 if (mdp == NULL) { | |
479 // Always allow the mdp to be cleared. | |
480 interpreter_frame_set_mdx((intptr_t)mdp); | |
481 } | |
482 intptr_t bcx = interpreter_frame_bcx(); | |
483 assert(!is_bci(bcx), "should not set mdp during GC"); | |
484 interpreter_frame_set_mdx((intptr_t)mdp); | |
485 } | |
486 | |
487 BasicObjectLock* frame::next_monitor_in_interpreter_frame(BasicObjectLock* current) const { | |
488 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
489 #ifdef ASSERT | |
490 interpreter_frame_verify_monitor(current); | |
491 #endif | |
492 BasicObjectLock* next = (BasicObjectLock*) (((intptr_t*) current) + interpreter_frame_monitor_size()); | |
493 return next; | |
494 } | |
495 | |
496 BasicObjectLock* frame::previous_monitor_in_interpreter_frame(BasicObjectLock* current) const { | |
497 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
498 #ifdef ASSERT | |
499 // // This verification needs to be checked before being enabled | |
500 // interpreter_frame_verify_monitor(current); | |
501 #endif | |
502 BasicObjectLock* previous = (BasicObjectLock*) (((intptr_t*) current) - interpreter_frame_monitor_size()); | |
503 return previous; | |
504 } | |
505 | |
506 // Interpreter locals and expression stack locations. | |
507 | |
508 intptr_t* frame::interpreter_frame_local_at(int index) const { | |
509 const int n = Interpreter::local_offset_in_bytes(index)/wordSize; | |
510 return &((*interpreter_frame_locals_addr())[n]); | |
511 } | |
512 | |
513 intptr_t* frame::interpreter_frame_expression_stack_at(jint offset) const { | |
514 const int i = offset * interpreter_frame_expression_stack_direction(); | |
1506 | 515 const int n = i * Interpreter::stackElementWords; |
0 | 516 return &(interpreter_frame_expression_stack()[n]); |
517 } | |
518 | |
519 jint frame::interpreter_frame_expression_stack_size() const { | |
520 // Number of elements on the interpreter expression stack | |
521 // Callers should span by stackElementWords | |
1506 | 522 int element_size = Interpreter::stackElementWords; |
0 | 523 if (frame::interpreter_frame_expression_stack_direction() < 0) { |
524 return (interpreter_frame_expression_stack() - | |
525 interpreter_frame_tos_address() + 1)/element_size; | |
526 } else { | |
527 return (interpreter_frame_tos_address() - | |
528 interpreter_frame_expression_stack() + 1)/element_size; | |
529 } | |
530 } | |
531 | |
532 | |
533 // (frame::interpreter_frame_sender_sp accessor is in frame_<arch>.cpp) | |
534 | |
535 const char* frame::print_name() const { | |
536 if (is_native_frame()) return "Native"; | |
537 if (is_interpreted_frame()) return "Interpreted"; | |
538 if (is_compiled_frame()) { | |
539 if (is_deoptimized_frame()) return "Deoptimized"; | |
540 return "Compiled"; | |
541 } | |
542 if (sp() == NULL) return "Empty"; | |
543 return "C"; | |
544 } | |
545 | |
546 void frame::print_value_on(outputStream* st, JavaThread *thread) const { | |
547 NOT_PRODUCT(address begin = pc()-40;) | |
548 NOT_PRODUCT(address end = NULL;) | |
549 | |
550 st->print("%s frame (sp=" INTPTR_FORMAT " unextended sp=" INTPTR_FORMAT, print_name(), sp(), unextended_sp()); | |
551 if (sp() != NULL) | |
552 st->print(", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT, fp(), pc()); | |
553 | |
554 if (StubRoutines::contains(pc())) { | |
555 st->print_cr(")"); | |
556 st->print("("); | |
557 StubCodeDesc* desc = StubCodeDesc::desc_for(pc()); | |
558 st->print("~Stub::%s", desc->name()); | |
559 NOT_PRODUCT(begin = desc->begin(); end = desc->end();) | |
560 } else if (Interpreter::contains(pc())) { | |
561 st->print_cr(")"); | |
562 st->print("("); | |
563 InterpreterCodelet* desc = Interpreter::codelet_containing(pc()); | |
564 if (desc != NULL) { | |
565 st->print("~"); | |
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566 desc->print_on(st); |
0 | 567 NOT_PRODUCT(begin = desc->code_begin(); end = desc->code_end();) |
568 } else { | |
569 st->print("~interpreter"); | |
570 } | |
571 } | |
572 st->print_cr(")"); | |
573 | |
574 if (_cb != NULL) { | |
575 st->print(" "); | |
576 _cb->print_value_on(st); | |
577 st->cr(); | |
578 #ifndef PRODUCT | |
579 if (end == NULL) { | |
1748 | 580 begin = _cb->code_begin(); |
581 end = _cb->code_end(); | |
0 | 582 } |
583 #endif | |
584 } | |
585 NOT_PRODUCT(if (WizardMode && Verbose) Disassembler::decode(begin, end);) | |
586 } | |
587 | |
588 | |
589 void frame::print_on(outputStream* st) const { | |
590 print_value_on(st,NULL); | |
591 if (is_interpreted_frame()) { | |
592 interpreter_frame_print_on(st); | |
593 } | |
594 } | |
595 | |
596 | |
597 void frame::interpreter_frame_print_on(outputStream* st) const { | |
598 #ifndef PRODUCT | |
599 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
600 jint i; | |
601 for (i = 0; i < interpreter_frame_method()->max_locals(); i++ ) { | |
602 intptr_t x = *interpreter_frame_local_at(i); | |
603 st->print(" - local [" INTPTR_FORMAT "]", x); | |
604 st->fill_to(23); | |
605 st->print_cr("; #%d", i); | |
606 } | |
607 for (i = interpreter_frame_expression_stack_size() - 1; i >= 0; --i ) { | |
608 intptr_t x = *interpreter_frame_expression_stack_at(i); | |
609 st->print(" - stack [" INTPTR_FORMAT "]", x); | |
610 st->fill_to(23); | |
611 st->print_cr("; #%d", i); | |
612 } | |
613 // locks for synchronization | |
614 for (BasicObjectLock* current = interpreter_frame_monitor_end(); | |
615 current < interpreter_frame_monitor_begin(); | |
616 current = next_monitor_in_interpreter_frame(current)) { | |
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617 st->print(" - obj ["); |
0 | 618 current->obj()->print_value_on(st); |
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619 st->print_cr("]"); |
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620 st->print(" - lock ["); |
0 | 621 current->lock()->print_on(st); |
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622 st->print_cr("]"); |
0 | 623 } |
624 // monitor | |
625 st->print_cr(" - monitor[" INTPTR_FORMAT "]", interpreter_frame_monitor_begin()); | |
626 // bcp | |
627 st->print(" - bcp [" INTPTR_FORMAT "]", interpreter_frame_bcp()); | |
628 st->fill_to(23); | |
629 st->print_cr("; @%d", interpreter_frame_bci()); | |
630 // locals | |
631 st->print_cr(" - locals [" INTPTR_FORMAT "]", interpreter_frame_local_at(0)); | |
632 // method | |
633 st->print(" - method [" INTPTR_FORMAT "]", (address)interpreter_frame_method()); | |
634 st->fill_to(23); | |
635 st->print("; "); | |
636 interpreter_frame_method()->print_name(st); | |
637 st->cr(); | |
638 #endif | |
639 } | |
640 | |
641 // Return whether the frame is in the VM or os indicating a Hotspot problem. | |
642 // Otherwise, it's likely a bug in the native library that the Java code calls, | |
643 // hopefully indicating where to submit bugs. | |
644 static void print_C_frame(outputStream* st, char* buf, int buflen, address pc) { | |
645 // C/C++ frame | |
646 bool in_vm = os::address_is_in_vm(pc); | |
647 st->print(in_vm ? "V" : "C"); | |
648 | |
649 int offset; | |
650 bool found; | |
651 | |
652 // libname | |
653 found = os::dll_address_to_library_name(pc, buf, buflen, &offset); | |
654 if (found) { | |
655 // skip directory names | |
656 const char *p1, *p2; | |
657 p1 = buf; | |
658 int len = (int)strlen(os::file_separator()); | |
659 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
660 st->print(" [%s+0x%x]", p1, offset); | |
661 } else { | |
662 st->print(" " PTR_FORMAT, pc); | |
663 } | |
664 | |
665 // function name - os::dll_address_to_function_name() may return confusing | |
666 // names if pc is within jvm.dll or libjvm.so, because JVM only has | |
667 // JVM_xxxx and a few other symbols in the dynamic symbol table. Do this | |
668 // only for native libraries. | |
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669 if (!in_vm || Decoder::can_decode_C_frame_in_vm()) { |
0 | 670 found = os::dll_address_to_function_name(pc, buf, buflen, &offset); |
671 | |
672 if (found) { | |
673 st->print(" %s+0x%x", buf, offset); | |
674 } | |
675 } | |
676 } | |
677 | |
678 // frame::print_on_error() is called by fatal error handler. Notice that we may | |
679 // crash inside this function if stack frame is corrupted. The fatal error | |
680 // handler can catch and handle the crash. Here we assume the frame is valid. | |
681 // | |
682 // First letter indicates type of the frame: | |
683 // J: Java frame (compiled) | |
684 // j: Java frame (interpreted) | |
685 // V: VM frame (C/C++) | |
686 // v: Other frames running VM generated code (e.g. stubs, adapters, etc.) | |
687 // C: C/C++ frame | |
688 // | |
689 // We don't need detailed frame type as that in frame::print_name(). "C" | |
690 // suggests the problem is in user lib; everything else is likely a VM bug. | |
691 | |
692 void frame::print_on_error(outputStream* st, char* buf, int buflen, bool verbose) const { | |
693 if (_cb != NULL) { | |
694 if (Interpreter::contains(pc())) { | |
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695 Method* m = this->interpreter_frame_method(); |
0 | 696 if (m != NULL) { |
697 m->name_and_sig_as_C_string(buf, buflen); | |
698 st->print("j %s", buf); | |
699 st->print("+%d", this->interpreter_frame_bci()); | |
700 } else { | |
701 st->print("j " PTR_FORMAT, pc()); | |
702 } | |
703 } else if (StubRoutines::contains(pc())) { | |
704 StubCodeDesc* desc = StubCodeDesc::desc_for(pc()); | |
705 if (desc != NULL) { | |
706 st->print("v ~StubRoutines::%s", desc->name()); | |
707 } else { | |
708 st->print("v ~StubRoutines::" PTR_FORMAT, pc()); | |
709 } | |
710 } else if (_cb->is_buffer_blob()) { | |
711 st->print("v ~BufferBlob::%s", ((BufferBlob *)_cb)->name()); | |
712 } else if (_cb->is_nmethod()) { | |
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713 Method* m = ((nmethod *)_cb)->method(); |
0 | 714 if (m != NULL) { |
715 m->name_and_sig_as_C_string(buf, buflen); | |
716 st->print("J %s", buf); | |
717 } else { | |
718 st->print("J " PTR_FORMAT, pc()); | |
719 } | |
720 } else if (_cb->is_runtime_stub()) { | |
721 st->print("v ~RuntimeStub::%s", ((RuntimeStub *)_cb)->name()); | |
722 } else if (_cb->is_deoptimization_stub()) { | |
723 st->print("v ~DeoptimizationBlob"); | |
724 } else if (_cb->is_exception_stub()) { | |
725 st->print("v ~ExceptionBlob"); | |
726 } else if (_cb->is_safepoint_stub()) { | |
727 st->print("v ~SafepointBlob"); | |
728 } else { | |
729 st->print("v blob " PTR_FORMAT, pc()); | |
730 } | |
731 } else { | |
732 print_C_frame(st, buf, buflen, pc()); | |
733 } | |
734 } | |
735 | |
736 | |
737 /* | |
738 The interpreter_frame_expression_stack_at method in the case of SPARC needs the | |
739 max_stack value of the method in order to compute the expression stack address. | |
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740 It uses the Method* in order to get the max_stack value but during GC this |
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741 Method* value saved on the frame is changed by reverse_and_push and hence cannot |
0 | 742 be used. So we save the max_stack value in the FrameClosure object and pass it |
743 down to the interpreter_frame_expression_stack_at method | |
744 */ | |
745 class InterpreterFrameClosure : public OffsetClosure { | |
746 private: | |
747 frame* _fr; | |
748 OopClosure* _f; | |
749 int _max_locals; | |
750 int _max_stack; | |
751 | |
752 public: | |
753 InterpreterFrameClosure(frame* fr, int max_locals, int max_stack, | |
754 OopClosure* f) { | |
755 _fr = fr; | |
756 _max_locals = max_locals; | |
757 _max_stack = max_stack; | |
758 _f = f; | |
759 } | |
760 | |
761 void offset_do(int offset) { | |
762 oop* addr; | |
763 if (offset < _max_locals) { | |
764 addr = (oop*) _fr->interpreter_frame_local_at(offset); | |
765 assert((intptr_t*)addr >= _fr->sp(), "must be inside the frame"); | |
766 _f->do_oop(addr); | |
767 } else { | |
768 addr = (oop*) _fr->interpreter_frame_expression_stack_at((offset - _max_locals)); | |
769 // In case of exceptions, the expression stack is invalid and the esp will be reset to express | |
770 // this condition. Therefore, we call f only if addr is 'inside' the stack (i.e., addr >= esp for Intel). | |
771 bool in_stack; | |
772 if (frame::interpreter_frame_expression_stack_direction() > 0) { | |
773 in_stack = (intptr_t*)addr <= _fr->interpreter_frame_tos_address(); | |
774 } else { | |
775 in_stack = (intptr_t*)addr >= _fr->interpreter_frame_tos_address(); | |
776 } | |
777 if (in_stack) { | |
778 _f->do_oop(addr); | |
779 } | |
780 } | |
781 } | |
782 | |
783 int max_locals() { return _max_locals; } | |
784 frame* fr() { return _fr; } | |
785 }; | |
786 | |
787 | |
788 class InterpretedArgumentOopFinder: public SignatureInfo { | |
789 private: | |
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790 OopClosure* _f; // Closure to invoke |
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791 int _offset; // TOS-relative offset, decremented with each argument |
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792 bool _has_receiver; // true if the callee has a receiver |
0 | 793 frame* _fr; |
794 | |
795 void set(int size, BasicType type) { | |
796 _offset -= size; | |
797 if (type == T_OBJECT || type == T_ARRAY) oop_offset_do(); | |
798 } | |
799 | |
800 void oop_offset_do() { | |
801 oop* addr; | |
802 addr = (oop*)_fr->interpreter_frame_tos_at(_offset); | |
803 _f->do_oop(addr); | |
804 } | |
805 | |
806 public: | |
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807 InterpretedArgumentOopFinder(Symbol* signature, bool has_receiver, frame* fr, OopClosure* f) : SignatureInfo(signature), _has_receiver(has_receiver) { |
0 | 808 // compute size of arguments |
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809 int args_size = ArgumentSizeComputer(signature).size() + (has_receiver ? 1 : 0); |
0 | 810 assert(!fr->is_interpreted_frame() || |
811 args_size <= fr->interpreter_frame_expression_stack_size(), | |
812 "args cannot be on stack anymore"); | |
813 // initialize InterpretedArgumentOopFinder | |
814 _f = f; | |
815 _fr = fr; | |
816 _offset = args_size; | |
817 } | |
818 | |
819 void oops_do() { | |
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820 if (_has_receiver) { |
0 | 821 --_offset; |
822 oop_offset_do(); | |
823 } | |
824 iterate_parameters(); | |
825 } | |
826 }; | |
827 | |
828 | |
829 // Entry frame has following form (n arguments) | |
830 // +-----------+ | |
831 // sp -> | last arg | | |
832 // +-----------+ | |
833 // : ::: : | |
834 // +-----------+ | |
835 // (sp+n)->| first arg| | |
836 // +-----------+ | |
837 | |
838 | |
839 | |
840 // visits and GC's all the arguments in entry frame | |
841 class EntryFrameOopFinder: public SignatureInfo { | |
842 private: | |
843 bool _is_static; | |
844 int _offset; | |
845 frame* _fr; | |
846 OopClosure* _f; | |
847 | |
848 void set(int size, BasicType type) { | |
849 assert (_offset >= 0, "illegal offset"); | |
850 if (type == T_OBJECT || type == T_ARRAY) oop_at_offset_do(_offset); | |
851 _offset -= size; | |
852 } | |
853 | |
854 void oop_at_offset_do(int offset) { | |
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855 assert (offset >= 0, "illegal offset"); |
0 | 856 oop* addr = (oop*) _fr->entry_frame_argument_at(offset); |
857 _f->do_oop(addr); | |
858 } | |
859 | |
860 public: | |
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861 EntryFrameOopFinder(frame* frame, Symbol* signature, bool is_static) : SignatureInfo(signature) { |
0 | 862 _f = NULL; // will be set later |
863 _fr = frame; | |
864 _is_static = is_static; | |
865 _offset = ArgumentSizeComputer(signature).size() - 1; // last parameter is at index 0 | |
866 } | |
867 | |
868 void arguments_do(OopClosure* f) { | |
869 _f = f; | |
870 if (!_is_static) oop_at_offset_do(_offset+1); // do the receiver | |
871 iterate_parameters(); | |
872 } | |
873 | |
874 }; | |
875 | |
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876 oop* frame::interpreter_callee_receiver_addr(Symbol* signature) { |
0 | 877 ArgumentSizeComputer asc(signature); |
878 int size = asc.size(); | |
879 return (oop *)interpreter_frame_tos_at(size); | |
880 } | |
881 | |
882 | |
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883 void frame::oops_interpreted_do(OopClosure* f, CLDToOopClosure* cld_f, |
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884 const RegisterMap* map, bool query_oop_map_cache) { |
0 | 885 assert(is_interpreted_frame(), "Not an interpreted frame"); |
886 assert(map != NULL, "map must be set"); | |
887 Thread *thread = Thread::current(); | |
888 methodHandle m (thread, interpreter_frame_method()); | |
889 jint bci = interpreter_frame_bci(); | |
890 | |
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891 assert(!Universe::heap()->is_in(m()), |
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892 "must be valid oop"); |
0 | 893 assert(m->is_method(), "checking frame value"); |
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894 assert((m->is_native() && bci == 0) || |
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895 (!m->is_native() && bci >= 0 && bci < m->code_size()), |
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896 "invalid bci value"); |
0 | 897 |
898 // Handle the monitor elements in the activation | |
899 for ( | |
900 BasicObjectLock* current = interpreter_frame_monitor_end(); | |
901 current < interpreter_frame_monitor_begin(); | |
902 current = next_monitor_in_interpreter_frame(current) | |
903 ) { | |
904 #ifdef ASSERT | |
905 interpreter_frame_verify_monitor(current); | |
906 #endif | |
907 current->oops_do(f); | |
908 } | |
909 | |
910 // process fixed part | |
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911 if (cld_f != NULL) { |
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912 // The method pointer in the frame might be the only path to the method's |
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913 // klass, and the klass needs to be kept alive while executing. The GCs |
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914 // don't trace through method pointers, so typically in similar situations |
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915 // the mirror or the class loader of the klass are installed as a GC root. |
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916 // To minimze the overhead of doing that here, we ask the GC to pass down a |
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917 // closure that knows how to keep klasses alive given a ClassLoaderData. |
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918 cld_f->do_cld(m->method_holder()->class_loader_data()); |
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919 } |
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920 |
1908 | 921 #if !defined(PPC) || defined(ZERO) |
0 | 922 if (m->is_native()) { |
923 #ifdef CC_INTERP | |
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924 interpreterState istate = get_interpreterState(); |
0 | 925 f->do_oop((oop*)&istate->_oop_temp); |
926 #else | |
927 f->do_oop((oop*)( fp() + interpreter_frame_oop_temp_offset )); | |
928 #endif /* CC_INTERP */ | |
929 } | |
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930 #else // PPC |
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931 if (m->is_native() && m->is_static()) { |
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932 f->do_oop(interpreter_frame_mirror_addr()); |
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933 } |
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934 #endif // PPC |
0 | 935 |
936 int max_locals = m->is_native() ? m->size_of_parameters() : m->max_locals(); | |
937 | |
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938 Symbol* signature = NULL; |
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939 bool has_receiver = false; |
0 | 940 |
941 // Process a callee's arguments if we are at a call site | |
942 // (i.e., if we are at an invoke bytecode) | |
943 // This is used sometimes for calling into the VM, not for another | |
944 // interpreted or compiled frame. | |
945 if (!m->is_native()) { | |
2142 | 946 Bytecode_invoke call = Bytecode_invoke_check(m, bci); |
947 if (call.is_valid()) { | |
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948 signature = call.signature(); |
2142 | 949 has_receiver = call.has_receiver(); |
0 | 950 if (map->include_argument_oops() && |
951 interpreter_frame_expression_stack_size() > 0) { | |
952 ResourceMark rm(thread); // is this right ??? | |
953 // we are at a call site & the expression stack is not empty | |
954 // => process callee's arguments | |
955 // | |
956 // Note: The expression stack can be empty if an exception | |
605 | 957 // occurred during method resolution/execution. In all |
0 | 958 // cases we empty the expression stack completely be- |
959 // fore handling the exception (the exception handling | |
960 // code in the interpreter calls a blocking runtime | |
961 // routine which can cause this code to be executed). | |
962 // (was bug gri 7/27/98) | |
1138
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963 oops_interpreted_arguments_do(signature, has_receiver, f); |
0 | 964 } |
965 } | |
966 } | |
967 | |
1506 | 968 InterpreterFrameClosure blk(this, max_locals, m->max_stack(), f); |
969 | |
970 // process locals & expression stack | |
971 InterpreterOopMap mask; | |
972 if (query_oop_map_cache) { | |
973 m->mask_for(bci, &mask); | |
0 | 974 } else { |
1506 | 975 OopMapCache::compute_one_oop_map(m, bci, &mask); |
0 | 976 } |
1506 | 977 mask.iterate_oop(&blk); |
0 | 978 } |
979 | |
980 | |
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981 void frame::oops_interpreted_arguments_do(Symbol* signature, bool has_receiver, OopClosure* f) { |
1138
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982 InterpretedArgumentOopFinder finder(signature, has_receiver, this, f); |
0 | 983 finder.oops_do(); |
984 } | |
985 | |
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986 void frame::oops_code_blob_do(OopClosure* f, CodeBlobClosure* cf, const RegisterMap* reg_map) { |
0 | 987 assert(_cb != NULL, "sanity check"); |
988 if (_cb->oop_maps() != NULL) { | |
989 OopMapSet::oops_do(this, reg_map, f); | |
990 | |
991 // Preserve potential arguments for a callee. We handle this by dispatching | |
992 // on the codeblob. For c2i, we do | |
993 if (reg_map->include_argument_oops()) { | |
994 _cb->preserve_callee_argument_oops(*this, reg_map, f); | |
995 } | |
996 } | |
997 // In cases where perm gen is collected, GC will want to mark | |
998 // oops referenced from nmethods active on thread stacks so as to | |
999 // prevent them from being collected. However, this visit should be | |
1000 // restricted to certain phases of the collection only. The | |
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1001 // closure decides how it wants nmethods to be traced. |
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1002 if (cf != NULL) |
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1003 cf->do_code_blob(_cb); |
0 | 1004 } |
1005 | |
1006 class CompiledArgumentOopFinder: public SignatureInfo { | |
1007 protected: | |
1008 OopClosure* _f; | |
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1009 int _offset; // the current offset, incremented with each argument |
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1010 bool _has_receiver; // true if the callee has a receiver |
0 | 1011 frame _fr; |
1012 RegisterMap* _reg_map; | |
1013 int _arg_size; | |
1014 VMRegPair* _regs; // VMReg list of arguments | |
1015 | |
1016 void set(int size, BasicType type) { | |
1017 if (type == T_OBJECT || type == T_ARRAY) handle_oop_offset(); | |
1018 _offset += size; | |
1019 } | |
1020 | |
1021 virtual void handle_oop_offset() { | |
1022 // Extract low order register number from register array. | |
1023 // In LP64-land, the high-order bits are valid but unhelpful. | |
1024 VMReg reg = _regs[_offset].first(); | |
1025 oop *loc = _fr.oopmapreg_to_location(reg, _reg_map); | |
1026 _f->do_oop(loc); | |
1027 } | |
1028 | |
1029 public: | |
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1030 CompiledArgumentOopFinder(Symbol* signature, bool has_receiver, OopClosure* f, frame fr, const RegisterMap* reg_map) |
0 | 1031 : SignatureInfo(signature) { |
1032 | |
1033 // initialize CompiledArgumentOopFinder | |
1034 _f = f; | |
1035 _offset = 0; | |
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1036 _has_receiver = has_receiver; |
0 | 1037 _fr = fr; |
1038 _reg_map = (RegisterMap*)reg_map; | |
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1039 _arg_size = ArgumentSizeComputer(signature).size() + (has_receiver ? 1 : 0); |
0 | 1040 |
1041 int arg_size; | |
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1042 _regs = SharedRuntime::find_callee_arguments(signature, has_receiver, &arg_size); |
0 | 1043 assert(arg_size == _arg_size, "wrong arg size"); |
1044 } | |
1045 | |
1046 void oops_do() { | |
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1047 if (_has_receiver) { |
0 | 1048 handle_oop_offset(); |
1049 _offset++; | |
1050 } | |
1051 iterate_parameters(); | |
1052 } | |
1053 }; | |
1054 | |
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1055 void frame::oops_compiled_arguments_do(Symbol* signature, bool has_receiver, const RegisterMap* reg_map, OopClosure* f) { |
0 | 1056 ResourceMark rm; |
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1057 CompiledArgumentOopFinder finder(signature, has_receiver, f, *this, reg_map); |
0 | 1058 finder.oops_do(); |
1059 } | |
1060 | |
1061 | |
1062 // Get receiver out of callers frame, i.e. find parameter 0 in callers | |
1063 // frame. Consult ADLC for where parameter 0 is to be found. Then | |
1064 // check local reg_map for it being a callee-save register or argument | |
1065 // register, both of which are saved in the local frame. If not found | |
1066 // there, it must be an in-stack argument of the caller. | |
1067 // Note: caller.sp() points to callee-arguments | |
1068 oop frame::retrieve_receiver(RegisterMap* reg_map) { | |
1069 frame caller = *this; | |
1070 | |
1071 // First consult the ADLC on where it puts parameter 0 for this signature. | |
1072 VMReg reg = SharedRuntime::name_for_receiver(); | |
1073 oop r = *caller.oopmapreg_to_location(reg, reg_map); | |
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1074 assert(Universe::heap()->is_in_or_null(r), err_msg("bad receiver: " INTPTR_FORMAT " (" INTX_FORMAT ")", (intptr_t) r, (intptr_t) r)); |
0 | 1075 return r; |
1076 } | |
1077 | |
1078 | |
1079 oop* frame::oopmapreg_to_location(VMReg reg, const RegisterMap* reg_map) const { | |
1080 if(reg->is_reg()) { | |
1081 // If it is passed in a register, it got spilled in the stub frame. | |
1082 return (oop *)reg_map->location(reg); | |
1083 } else { | |
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1084 int sp_offset_in_bytes = reg->reg2stack() * VMRegImpl::stack_slot_size; |
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1085 return (oop*)(((address)unextended_sp()) + sp_offset_in_bytes); |
0 | 1086 } |
1087 } | |
1088 | |
2019 | 1089 BasicLock* frame::get_native_monitor() { |
1090 nmethod* nm = (nmethod*)_cb; | |
1091 assert(_cb != NULL && _cb->is_nmethod() && nm->method()->is_native(), | |
1092 "Should not call this unless it's a native nmethod"); | |
1093 int byte_offset = in_bytes(nm->native_basic_lock_sp_offset()); | |
0 | 1094 assert(byte_offset >= 0, "should not see invalid offset"); |
1095 return (BasicLock*) &sp()[byte_offset / wordSize]; | |
1096 } | |
1097 | |
2019 | 1098 oop frame::get_native_receiver() { |
1099 nmethod* nm = (nmethod*)_cb; | |
1100 assert(_cb != NULL && _cb->is_nmethod() && nm->method()->is_native(), | |
1101 "Should not call this unless it's a native nmethod"); | |
1102 int byte_offset = in_bytes(nm->native_receiver_sp_offset()); | |
0 | 1103 assert(byte_offset >= 0, "should not see invalid offset"); |
1104 oop owner = ((oop*) sp())[byte_offset / wordSize]; | |
1105 assert( Universe::heap()->is_in(owner), "bad receiver" ); | |
1106 return owner; | |
1107 } | |
1108 | |
1109 void frame::oops_entry_do(OopClosure* f, const RegisterMap* map) { | |
1110 assert(map != NULL, "map must be set"); | |
1111 if (map->include_argument_oops()) { | |
1112 // must collect argument oops, as nobody else is doing it | |
1113 Thread *thread = Thread::current(); | |
1114 methodHandle m (thread, entry_frame_call_wrapper()->callee_method()); | |
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1115 EntryFrameOopFinder finder(this, m->signature(), m->is_static()); |
0 | 1116 finder.arguments_do(f); |
1117 } | |
1118 // Traverse the Handle Block saved in the entry frame | |
1119 entry_frame_call_wrapper()->oops_do(f); | |
1120 } | |
1121 | |
1122 | |
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1123 void frame::oops_do_internal(OopClosure* f, CLDToOopClosure* cld_f, CodeBlobClosure* cf, RegisterMap* map, bool use_interpreter_oop_map_cache) { |
1119
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1124 #ifndef PRODUCT |
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1125 // simulate GC crash here to dump java thread in error report |
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1126 if (CrashGCForDumpingJavaThread) { |
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1127 char *t = NULL; |
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1128 *t = 'c'; |
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1129 } |
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1130 #endif |
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1131 if (is_interpreted_frame()) { |
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1132 oops_interpreted_do(f, cld_f, map, use_interpreter_oop_map_cache); |
1119
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1133 } else if (is_entry_frame()) { |
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1134 oops_entry_do(f, map); |
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1135 } else if (CodeCache::contains(pc())) { |
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1136 oops_code_blob_do(f, cf, map); |
1692 | 1137 #ifdef SHARK |
1138 } else if (is_fake_stub_frame()) { | |
1139 // nothing to do | |
1140 #endif // SHARK | |
0 | 1141 } else { |
1142 ShouldNotReachHere(); | |
1143 } | |
1144 } | |
1145 | |
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1146 void frame::nmethods_do(CodeBlobClosure* cf) { |
0 | 1147 if (_cb != NULL && _cb->is_nmethod()) { |
989
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1148 cf->do_code_blob(_cb); |
0 | 1149 } |
1150 } | |
1151 | |
1152 | |
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1153 // call f() on the interpreted Method*s in the stack. |
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1154 // Have to walk the entire code cache for the compiled frames Yuck. |
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1155 void frame::metadata_do(void f(Metadata*)) { |
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1156 if (_cb != NULL && Interpreter::contains(pc())) { |
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1157 Method* m = this->interpreter_frame_method(); |
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1158 assert(m != NULL, "huh?"); |
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1159 f(m); |
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1160 } |
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1161 } |
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1162 |
0 | 1163 void frame::gc_prologue() { |
1164 if (is_interpreted_frame()) { | |
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1165 // set bcx to bci to become Method* position independent during GC |
0 | 1166 interpreter_frame_set_bcx(interpreter_frame_bci()); |
1167 } | |
1168 } | |
1169 | |
1170 | |
1171 void frame::gc_epilogue() { | |
1172 if (is_interpreted_frame()) { | |
1173 // set bcx back to bcp for interpreter | |
1174 interpreter_frame_set_bcx((intptr_t)interpreter_frame_bcp()); | |
1175 } | |
1176 // call processor specific epilog function | |
1177 pd_gc_epilog(); | |
1178 } | |
1179 | |
1180 | |
1181 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1182 | |
1183 void frame::CheckValueClosure::do_oop(oop* p) { | |
1184 if (CheckOopishValues && Universe::heap()->is_in_reserved(*p)) { | |
1185 warning("value @ " INTPTR_FORMAT " looks oopish (" INTPTR_FORMAT ") (thread = " INTPTR_FORMAT ")", p, (address)*p, Thread::current()); | |
1186 } | |
1187 } | |
1188 frame::CheckValueClosure frame::_check_value; | |
1189 | |
1190 | |
1191 void frame::CheckOopClosure::do_oop(oop* p) { | |
1192 if (*p != NULL && !(*p)->is_oop()) { | |
1193 warning("value @ " INTPTR_FORMAT " should be an oop (" INTPTR_FORMAT ") (thread = " INTPTR_FORMAT ")", p, (address)*p, Thread::current()); | |
1194 } | |
1195 } | |
1196 frame::CheckOopClosure frame::_check_oop; | |
1197 | |
1198 void frame::check_derived_oop(oop* base, oop* derived) { | |
1199 _check_oop.do_oop(base); | |
1200 } | |
1201 | |
1202 | |
1203 void frame::ZapDeadClosure::do_oop(oop* p) { | |
1204 if (TraceZapDeadLocals) tty->print_cr("zapping @ " INTPTR_FORMAT " containing " INTPTR_FORMAT, p, (address)*p); | |
1205 // Need cast because on _LP64 the conversion to oop is ambiguous. Constant | |
1206 // can be either long or int. | |
1207 *p = (oop)(int)0xbabebabe; | |
1208 } | |
1209 frame::ZapDeadClosure frame::_zap_dead; | |
1210 | |
1211 void frame::zap_dead_locals(JavaThread* thread, const RegisterMap* map) { | |
1212 assert(thread == Thread::current(), "need to synchronize to do this to another thread"); | |
1213 // Tracing - part 1 | |
1214 if (TraceZapDeadLocals) { | |
1215 ResourceMark rm(thread); | |
1216 tty->print_cr("--------------------------------------------------------------------------------"); | |
1217 tty->print("Zapping dead locals in "); | |
1218 print_on(tty); | |
1219 tty->cr(); | |
1220 } | |
1221 // Zapping | |
1222 if (is_entry_frame ()) zap_dead_entry_locals (thread, map); | |
1223 else if (is_interpreted_frame()) zap_dead_interpreted_locals(thread, map); | |
1224 else if (is_compiled_frame()) zap_dead_compiled_locals (thread, map); | |
1225 | |
1226 else | |
1227 // could be is_runtime_frame | |
1228 // so remove error: ShouldNotReachHere(); | |
1229 ; | |
1230 // Tracing - part 2 | |
1231 if (TraceZapDeadLocals) { | |
1232 tty->cr(); | |
1233 } | |
1234 } | |
1235 | |
1236 | |
1237 void frame::zap_dead_interpreted_locals(JavaThread *thread, const RegisterMap* map) { | |
1238 // get current interpreter 'pc' | |
1239 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
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1240 Method* m = interpreter_frame_method(); |
0 | 1241 int bci = interpreter_frame_bci(); |
1242 | |
1243 int max_locals = m->is_native() ? m->size_of_parameters() : m->max_locals(); | |
1244 | |
1506 | 1245 // process dynamic part |
1246 InterpreterFrameClosure value_blk(this, max_locals, m->max_stack(), | |
1247 &_check_value); | |
1248 InterpreterFrameClosure oop_blk(this, max_locals, m->max_stack(), | |
1249 &_check_oop ); | |
1250 InterpreterFrameClosure dead_blk(this, max_locals, m->max_stack(), | |
1251 &_zap_dead ); | |
0 | 1252 |
1506 | 1253 // get frame map |
1254 InterpreterOopMap mask; | |
1255 m->mask_for(bci, &mask); | |
1256 mask.iterate_all( &oop_blk, &value_blk, &dead_blk); | |
0 | 1257 } |
1258 | |
1259 | |
1260 void frame::zap_dead_compiled_locals(JavaThread* thread, const RegisterMap* reg_map) { | |
1261 | |
1262 ResourceMark rm(thread); | |
1263 assert(_cb != NULL, "sanity check"); | |
1264 if (_cb->oop_maps() != NULL) { | |
113
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1265 OopMapSet::all_do(this, reg_map, &_check_oop, check_derived_oop, &_check_value); |
0 | 1266 } |
1267 } | |
1268 | |
1269 | |
1270 void frame::zap_dead_entry_locals(JavaThread*, const RegisterMap*) { | |
1271 if (TraceZapDeadLocals) warning("frame::zap_dead_entry_locals unimplemented"); | |
1272 } | |
1273 | |
1274 | |
1275 void frame::zap_dead_deoptimized_locals(JavaThread*, const RegisterMap*) { | |
1276 if (TraceZapDeadLocals) warning("frame::zap_dead_deoptimized_locals unimplemented"); | |
1277 } | |
1278 | |
1279 # endif // ENABLE_ZAP_DEAD_LOCALS | |
1280 | |
1281 void frame::verify(const RegisterMap* map) { | |
1282 // for now make sure receiver type is correct | |
1283 if (is_interpreted_frame()) { | |
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1284 Method* method = interpreter_frame_method(); |
0 | 1285 guarantee(method->is_method(), "method is wrong in frame::verify"); |
1286 if (!method->is_static()) { | |
1287 // fetch the receiver | |
1288 oop* p = (oop*) interpreter_frame_local_at(0); | |
1289 // make sure we have the right receiver type | |
1290 } | |
1291 } | |
1292 COMPILER2_PRESENT(assert(DerivedPointerTable::is_empty(), "must be empty before verify");) | |
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1293 oops_do_internal(&VerifyOopClosure::verify_oop, NULL, NULL, (RegisterMap*)map, false); |
0 | 1294 } |
1295 | |
1296 | |
1297 #ifdef ASSERT | |
1298 bool frame::verify_return_pc(address x) { | |
1299 if (StubRoutines::returns_to_call_stub(x)) { | |
1300 return true; | |
1301 } | |
1302 if (CodeCache::contains(x)) { | |
1303 return true; | |
1304 } | |
1305 if (Interpreter::contains(x)) { | |
1306 return true; | |
1307 } | |
1308 return false; | |
1309 } | |
1310 #endif | |
1311 | |
1312 #ifdef ASSERT | |
1313 void frame::interpreter_frame_verify_monitor(BasicObjectLock* value) const { | |
1314 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
1315 // verify that the value is in the right part of the frame | |
1316 address low_mark = (address) interpreter_frame_monitor_end(); | |
1317 address high_mark = (address) interpreter_frame_monitor_begin(); | |
1318 address current = (address) value; | |
1319 | |
1320 const int monitor_size = frame::interpreter_frame_monitor_size(); | |
1321 guarantee((high_mark - current) % monitor_size == 0 , "Misaligned top of BasicObjectLock*"); | |
1322 guarantee( high_mark > current , "Current BasicObjectLock* higher than high_mark"); | |
1323 | |
1324 guarantee((current - low_mark) % monitor_size == 0 , "Misaligned bottom of BasicObjectLock*"); | |
1325 guarantee( current >= low_mark , "Current BasicObjectLock* below than low_mark"); | |
1326 } | |
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1327 #endif |
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1328 |
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1329 #ifndef PRODUCT |
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1330 void frame::describe(FrameValues& values, int frame_no) { |
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1331 // boundaries: sp and the 'real' frame pointer |
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1332 values.describe(-1, sp(), err_msg("sp for #%d", frame_no), 1); |
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1333 intptr_t* frame_pointer = real_fp(); // Note: may differ from fp() |
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1334 |
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1335 // print frame info at the highest boundary |
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1336 intptr_t* info_address = MAX2(sp(), frame_pointer); |
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1337 |
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1338 if (info_address != frame_pointer) { |
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1339 // print frame_pointer explicitly if not marked by the frame info |
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1340 values.describe(-1, frame_pointer, err_msg("frame pointer for #%d", frame_no), 1); |
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1341 } |
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|
1342 |
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1343 if (is_entry_frame() || is_compiled_frame() || is_interpreted_frame() || is_native_frame()) { |
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1344 // Label values common to most frames |
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1345 values.describe(-1, unextended_sp(), err_msg("unextended_sp for #%d", frame_no)); |
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1346 } |
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1347 |
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1348 if (is_interpreted_frame()) { |
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1349 Method* m = interpreter_frame_method(); |
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1350 int bci = interpreter_frame_bci(); |
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1351 |
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|
1352 // Label the method and current bci |
4818
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1353 values.describe(-1, info_address, |
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1354 FormatBuffer<1024>("#%d method %s @ %d", frame_no, m->name_and_sig_as_C_string(), bci), 2); |
4818
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1355 values.describe(-1, info_address, |
3336
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1356 err_msg("- %d locals %d max stack", m->max_locals(), m->max_stack()), 1); |
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1357 if (m->max_locals() > 0) { |
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1358 intptr_t* l0 = interpreter_frame_local_at(0); |
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1359 intptr_t* ln = interpreter_frame_local_at(m->max_locals() - 1); |
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1360 values.describe(-1, MAX2(l0, ln), err_msg("locals for #%d", frame_no), 1); |
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1361 // Report each local and mark as owned by this frame |
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1362 for (int l = 0; l < m->max_locals(); l++) { |
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1363 intptr_t* l0 = interpreter_frame_local_at(l); |
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1364 values.describe(frame_no, l0, err_msg("local %d", l)); |
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1365 } |
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|
1366 } |
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|
1367 |
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1368 // Compute the actual expression stack size |
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1369 InterpreterOopMap mask; |
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1370 OopMapCache::compute_one_oop_map(m, bci, &mask); |
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1371 intptr_t* tos = NULL; |
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1372 // Report each stack element and mark as owned by this frame |
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1373 for (int e = 0; e < mask.expression_stack_size(); e++) { |
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1374 tos = MAX2(tos, interpreter_frame_expression_stack_at(e)); |
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1375 values.describe(frame_no, interpreter_frame_expression_stack_at(e), |
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1376 err_msg("stack %d", e)); |
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1377 } |
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1378 if (tos != NULL) { |
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1379 values.describe(-1, tos, err_msg("expression stack for #%d", frame_no), 1); |
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1380 } |
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1381 if (interpreter_frame_monitor_begin() != interpreter_frame_monitor_end()) { |
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1382 values.describe(frame_no, (intptr_t*)interpreter_frame_monitor_begin(), "monitors begin"); |
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1383 values.describe(frame_no, (intptr_t*)interpreter_frame_monitor_end(), "monitors end"); |
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1384 } |
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1385 } else if (is_entry_frame()) { |
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1386 // For now just label the frame |
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1387 values.describe(-1, info_address, err_msg("#%d entry frame", frame_no), 2); |
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1388 } else if (is_compiled_frame()) { |
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1389 // For now just label the frame |
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1390 nmethod* nm = cb()->as_nmethod_or_null(); |
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1391 values.describe(-1, info_address, |
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1392 FormatBuffer<1024>("#%d nmethod " INTPTR_FORMAT " for method %s%s", frame_no, |
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1393 nm, nm->method()->name_and_sig_as_C_string(), |
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1394 (_deopt_state == is_deoptimized) ? |
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1395 " (deoptimized)" : |
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1396 ((_deopt_state == unknown) ? " (state unknown)" : "")), |
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1397 2); |
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1398 } else if (is_native_frame()) { |
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1399 // For now just label the frame |
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1400 nmethod* nm = cb()->as_nmethod_or_null(); |
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1401 values.describe(-1, info_address, |
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1402 FormatBuffer<1024>("#%d nmethod " INTPTR_FORMAT " for native method %s", frame_no, |
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1403 nm, nm->method()->name_and_sig_as_C_string()), 2); |
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1404 } else { |
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1405 // provide default info if not handled before |
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1406 char *info = (char *) "special frame"; |
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1407 if ((_cb != NULL) && |
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1408 (_cb->name() != NULL)) { |
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1409 info = (char *)_cb->name(); |
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1410 } |
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1411 values.describe(-1, info_address, err_msg("#%d <%s>", frame_no, info), 2); |
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1412 } |
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1413 |
82e5a84b7436
7120450: complete information dumped by frame_describe
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|
1414 // platform dependent additional data |
3336
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|
1415 describe_pd(values, frame_no); |
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|
1416 } |
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|
1417 |
0 | 1418 #endif |
1419 | |
1420 | |
1421 //----------------------------------------------------------------------------------- | |
1422 // StackFrameStream implementation | |
1423 | |
1424 StackFrameStream::StackFrameStream(JavaThread *thread, bool update) : _reg_map(thread, update) { | |
1425 assert(thread->has_last_Java_frame(), "sanity check"); | |
1426 _fr = thread->last_frame(); | |
1427 _is_done = false; | |
1428 } | |
3336
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|
1429 |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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parents:
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diff
changeset
|
1430 |
4824
5dbed2f542ff
7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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changeset
|
1431 #ifndef PRODUCT |
3336
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|
1432 |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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|
1433 void FrameValues::describe(int owner, intptr_t* location, const char* description, int priority) { |
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|
1434 FrameValue fv; |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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|
1435 fv.location = location; |
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|
1436 fv.owner = owner; |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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changeset
|
1437 fv.priority = priority; |
2e038ad0c1d0
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diff
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|
1438 fv.description = NEW_RESOURCE_ARRAY(char, strlen(description) + 1); |
2e038ad0c1d0
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|
1439 strcpy(fv.description, description); |
2e038ad0c1d0
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|
1440 _values.append(fv); |
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changeset
|
1441 } |
2e038ad0c1d0
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diff
changeset
|
1442 |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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diff
changeset
|
1443 |
4824
5dbed2f542ff
7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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parents:
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diff
changeset
|
1444 #ifdef ASSERT |
3365
3cfb240033d1
7043301: assert(locals < caller->fp() || locals > (caller->fp() + 16)) failed: locals in save area
never
parents:
3363
diff
changeset
|
1445 void FrameValues::validate() { |
3336
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|
1446 _values.sort(compare); |
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|
1447 bool error = false; |
2e038ad0c1d0
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|
1448 FrameValue prev; |
2e038ad0c1d0
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changeset
|
1449 prev.owner = -1; |
2e038ad0c1d0
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changeset
|
1450 for (int i = _values.length() - 1; i >= 0; i--) { |
2e038ad0c1d0
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changeset
|
1451 FrameValue fv = _values.at(i); |
2e038ad0c1d0
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|
1452 if (fv.owner == -1) continue; |
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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|
1453 if (prev.owner == -1) { |
2e038ad0c1d0
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changeset
|
1454 prev = fv; |
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changeset
|
1455 continue; |
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|
1456 } |
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changeset
|
1457 if (prev.location == fv.location) { |
2e038ad0c1d0
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changeset
|
1458 if (fv.owner != prev.owner) { |
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changeset
|
1459 tty->print_cr("overlapping storage"); |
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|
1460 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", prev.location, *prev.location, prev.description); |
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changeset
|
1461 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", fv.location, *fv.location, fv.description); |
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changeset
|
1462 error = true; |
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changeset
|
1463 } |
2e038ad0c1d0
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changeset
|
1464 } else { |
2e038ad0c1d0
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diff
changeset
|
1465 prev = fv; |
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|
1466 } |
2e038ad0c1d0
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diff
changeset
|
1467 } |
3365
3cfb240033d1
7043301: assert(locals < caller->fp() || locals > (caller->fp() + 16)) failed: locals in save area
never
parents:
3363
diff
changeset
|
1468 assert(!error, "invalid layout"); |
3336
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changeset
|
1469 } |
4824
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parents:
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diff
changeset
|
1470 #endif // ASSERT |
3336
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diff
changeset
|
1471 |
4042
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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parents:
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diff
changeset
|
1472 void FrameValues::print(JavaThread* thread) { |
3336
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|
1473 _values.sort(compare); |
3369
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7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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parents:
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diff
changeset
|
1474 |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3365
diff
changeset
|
1475 // Sometimes values like the fp can be invalid values if the |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3365
diff
changeset
|
1476 // register map wasn't updated during the walk. Trim out values |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
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diff
changeset
|
1477 // that aren't actually in the stack of the thread. |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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parents:
3365
diff
changeset
|
1478 int min_index = 0; |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3365
diff
changeset
|
1479 int max_index = _values.length() - 1; |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3365
diff
changeset
|
1480 intptr_t* v0 = _values.at(min_index).location; |
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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parents:
3365
diff
changeset
|
1481 intptr_t* v1 = _values.at(max_index).location; |
4042
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3369
diff
changeset
|
1482 |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3369
diff
changeset
|
1483 if (thread == Thread::current()) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3369
diff
changeset
|
1484 while (!thread->is_in_stack((address)v0)) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1485 v0 = _values.at(++min_index).location; |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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parents:
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diff
changeset
|
1486 } |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1487 while (!thread->is_in_stack((address)v1)) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1488 v1 = _values.at(--max_index).location; |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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parents:
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diff
changeset
|
1489 } |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1490 } else { |
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7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1491 while (!thread->on_local_stack((address)v0)) { |
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7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3369
diff
changeset
|
1492 v0 = _values.at(++min_index).location; |
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7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1493 } |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1494 while (!thread->on_local_stack((address)v1)) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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parents:
3369
diff
changeset
|
1495 v1 = _values.at(--max_index).location; |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
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diff
changeset
|
1496 } |
3369
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7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3365
diff
changeset
|
1497 } |
3336
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changeset
|
1498 intptr_t* min = MIN2(v0, v1); |
2e038ad0c1d0
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changeset
|
1499 intptr_t* max = MAX2(v0, v1); |
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2192
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changeset
|
1500 intptr_t* cur = max; |
2e038ad0c1d0
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changeset
|
1501 intptr_t* last = NULL; |
3369
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parents:
3365
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changeset
|
1502 for (int i = max_index; i >= min_index; i--) { |
3336
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|
1503 FrameValue fv = _values.at(i); |
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changeset
|
1504 while (cur > fv.location) { |
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parents:
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|
1505 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT, cur, *cur); |
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changeset
|
1506 cur--; |
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changeset
|
1507 } |
2e038ad0c1d0
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changeset
|
1508 if (last == fv.location) { |
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changeset
|
1509 const char* spacer = " " LP64_ONLY(" "); |
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changeset
|
1510 tty->print_cr(" %s %s %s", spacer, spacer, fv.description); |
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|
1511 } else { |
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diff
changeset
|
1512 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", fv.location, *fv.location, fv.description); |
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|
1513 last = fv.location; |
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changeset
|
1514 cur--; |
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changeset
|
1515 } |
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changeset
|
1516 } |
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changeset
|
1517 } |
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diff
changeset
|
1518 |
4824
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7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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diff
changeset
|
1519 #endif // ndef PRODUCT |