Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/frame.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | aa3d708d67c4 |
| children | 957c266d8bc5 da91efe96a93 |
| rev | line source |
|---|---|
| 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" |
| 26 #include "gc_interface/collectedHeap.inline.hpp" | |
| 27 #include "interpreter/interpreter.hpp" | |
| 28 #include "interpreter/oopMapCache.hpp" | |
| 29 #include "memory/resourceArea.hpp" | |
| 30 #include "memory/universe.inline.hpp" | |
| 31 #include "oops/markOop.hpp" | |
| 32 #include "oops/methodDataOop.hpp" | |
| 33 #include "oops/methodOop.hpp" | |
| 34 #include "oops/oop.inline.hpp" | |
| 35 #include "oops/oop.inline2.hpp" | |
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36 #include "prims/methodHandles.hpp" |
| 1972 | 37 #include "runtime/frame.inline.hpp" |
| 38 #include "runtime/handles.inline.hpp" | |
| 39 #include "runtime/javaCalls.hpp" | |
| 40 #include "runtime/monitorChunk.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 42 #include "runtime/signature.hpp" | |
| 43 #include "runtime/stubCodeGenerator.hpp" | |
| 44 #include "runtime/stubRoutines.hpp" | |
|
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45 #include "utilities/decoder.hpp" |
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46 |
| 1972 | 47 #ifdef TARGET_ARCH_x86 |
| 48 # include "nativeInst_x86.hpp" | |
| 49 #endif | |
| 50 #ifdef TARGET_ARCH_sparc | |
| 51 # include "nativeInst_sparc.hpp" | |
| 52 #endif | |
| 53 #ifdef TARGET_ARCH_zero | |
| 54 # include "nativeInst_zero.hpp" | |
| 55 #endif | |
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56 #ifdef TARGET_ARCH_arm |
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57 # include "nativeInst_arm.hpp" |
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58 #endif |
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59 #ifdef TARGET_ARCH_ppc |
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60 # include "nativeInst_ppc.hpp" |
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61 #endif |
| 0 | 62 |
| 63 RegisterMap::RegisterMap(JavaThread *thread, bool update_map) { | |
| 64 _thread = thread; | |
| 65 _update_map = update_map; | |
| 66 clear(); | |
| 67 debug_only(_update_for_id = NULL;) | |
| 68 #ifndef PRODUCT | |
| 69 for (int i = 0; i < reg_count ; i++ ) _location[i] = NULL; | |
| 70 #endif /* PRODUCT */ | |
| 71 } | |
| 72 | |
| 73 RegisterMap::RegisterMap(const RegisterMap* map) { | |
| 74 assert(map != this, "bad initialization parameter"); | |
| 75 assert(map != NULL, "RegisterMap must be present"); | |
| 76 _thread = map->thread(); | |
| 77 _update_map = map->update_map(); | |
| 78 _include_argument_oops = map->include_argument_oops(); | |
| 79 debug_only(_update_for_id = map->_update_for_id;) | |
| 80 pd_initialize_from(map); | |
| 81 if (update_map()) { | |
| 82 for(int i = 0; i < location_valid_size; i++) { | |
| 83 LocationValidType bits = !update_map() ? 0 : map->_location_valid[i]; | |
| 84 _location_valid[i] = bits; | |
| 85 // for whichever bits are set, pull in the corresponding map->_location | |
| 86 int j = i*location_valid_type_size; | |
| 87 while (bits != 0) { | |
| 88 if ((bits & 1) != 0) { | |
| 89 assert(0 <= j && j < reg_count, "range check"); | |
| 90 _location[j] = map->_location[j]; | |
| 91 } | |
| 92 bits >>= 1; | |
| 93 j += 1; | |
| 94 } | |
| 95 } | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 void RegisterMap::clear() { | |
| 100 set_include_argument_oops(true); | |
| 101 if (_update_map) { | |
| 102 for(int i = 0; i < location_valid_size; i++) { | |
| 103 _location_valid[i] = 0; | |
| 104 } | |
| 105 pd_clear(); | |
| 106 } else { | |
| 107 pd_initialize(); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 #ifndef PRODUCT | |
| 112 | |
| 113 void RegisterMap::print_on(outputStream* st) const { | |
| 114 st->print_cr("Register map"); | |
| 115 for(int i = 0; i < reg_count; i++) { | |
| 116 | |
| 117 VMReg r = VMRegImpl::as_VMReg(i); | |
| 118 intptr_t* src = (intptr_t*) location(r); | |
| 119 if (src != NULL) { | |
| 120 | |
| 417 | 121 r->print_on(st); |
| 122 st->print(" [" INTPTR_FORMAT "] = ", src); | |
| 0 | 123 if (((uintptr_t)src & (sizeof(*src)-1)) != 0) { |
| 417 | 124 st->print_cr("<misaligned>"); |
| 0 | 125 } else { |
| 417 | 126 st->print_cr(INTPTR_FORMAT, *src); |
| 0 | 127 } |
| 128 } | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 void RegisterMap::print() const { | |
| 133 print_on(tty); | |
| 134 } | |
| 135 | |
| 136 #endif | |
| 137 // This returns the pc that if you were in the debugger you'd see. Not | |
| 138 // the idealized value in the frame object. This undoes the magic conversion | |
| 139 // that happens for deoptimized frames. In addition it makes the value the | |
| 140 // hardware would want to see in the native frame. The only user (at this point) | |
| 141 // is deoptimization. It likely no one else should ever use it. | |
| 142 | |
| 143 address frame::raw_pc() const { | |
| 144 if (is_deoptimized_frame()) { | |
| 1204 | 145 nmethod* nm = cb()->as_nmethod_or_null(); |
| 146 if (nm->is_method_handle_return(pc())) | |
| 147 return nm->deopt_mh_handler_begin() - pc_return_offset; | |
| 148 else | |
| 149 return nm->deopt_handler_begin() - pc_return_offset; | |
| 0 | 150 } else { |
| 151 return (pc() - pc_return_offset); | |
| 152 } | |
| 153 } | |
| 154 | |
| 155 // Change the pc in a frame object. This does not change the actual pc in | |
| 156 // actual frame. To do that use patch_pc. | |
| 157 // | |
| 158 void frame::set_pc(address newpc ) { | |
| 159 #ifdef ASSERT | |
| 160 if (_cb != NULL && _cb->is_nmethod()) { | |
| 161 assert(!((nmethod*)_cb)->is_deopt_pc(_pc), "invariant violation"); | |
| 162 } | |
| 163 #endif // ASSERT | |
| 164 | |
| 165 // Unsafe to use the is_deoptimzed tester after changing pc | |
| 166 _deopt_state = unknown; | |
| 167 _pc = newpc; | |
| 168 _cb = CodeCache::find_blob_unsafe(_pc); | |
| 169 | |
| 170 } | |
| 171 | |
| 172 // type testers | |
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173 bool frame::is_ignored_frame() const { |
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174 return false; // FIXME: some LambdaForm frames should be ignored |
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175 } |
| 0 | 176 bool frame::is_deoptimized_frame() const { |
| 177 assert(_deopt_state != unknown, "not answerable"); | |
| 178 return _deopt_state == is_deoptimized; | |
| 179 } | |
| 180 | |
| 181 bool frame::is_native_frame() const { | |
| 182 return (_cb != NULL && | |
| 183 _cb->is_nmethod() && | |
| 184 ((nmethod*)_cb)->is_native_method()); | |
| 185 } | |
| 186 | |
| 187 bool frame::is_java_frame() const { | |
| 188 if (is_interpreted_frame()) return true; | |
| 189 if (is_compiled_frame()) return true; | |
| 190 return false; | |
| 191 } | |
| 192 | |
| 193 | |
| 194 bool frame::is_compiled_frame() const { | |
| 195 if (_cb != NULL && | |
| 196 _cb->is_nmethod() && | |
| 197 ((nmethod*)_cb)->is_java_method()) { | |
| 198 return true; | |
| 199 } | |
| 200 return false; | |
| 201 } | |
| 202 | |
| 203 | |
| 204 bool frame::is_runtime_frame() const { | |
| 205 return (_cb != NULL && _cb->is_runtime_stub()); | |
| 206 } | |
| 207 | |
| 208 bool frame::is_safepoint_blob_frame() const { | |
| 209 return (_cb != NULL && _cb->is_safepoint_stub()); | |
| 210 } | |
| 211 | |
| 212 // testers | |
| 213 | |
| 214 bool frame::is_first_java_frame() const { | |
| 215 RegisterMap map(JavaThread::current(), false); // No update | |
| 216 frame s; | |
| 217 for (s = sender(&map); !(s.is_java_frame() || s.is_first_frame()); s = s.sender(&map)); | |
| 218 return s.is_first_frame(); | |
| 219 } | |
| 220 | |
| 221 | |
| 222 bool frame::entry_frame_is_first() const { | |
| 223 return entry_frame_call_wrapper()->anchor()->last_Java_sp() == NULL; | |
| 224 } | |
| 225 | |
| 226 | |
| 227 bool frame::should_be_deoptimized() const { | |
| 228 if (_deopt_state == is_deoptimized || | |
| 229 !is_compiled_frame() ) return false; | |
| 230 assert(_cb != NULL && _cb->is_nmethod(), "must be an nmethod"); | |
| 231 nmethod* nm = (nmethod *)_cb; | |
| 232 if (TraceDependencies) { | |
| 233 tty->print("checking (%s) ", nm->is_marked_for_deoptimization() ? "true" : "false"); | |
| 234 nm->print_value_on(tty); | |
| 235 tty->cr(); | |
| 236 } | |
| 237 | |
| 238 if( !nm->is_marked_for_deoptimization() ) | |
| 239 return false; | |
| 240 | |
| 241 // If at the return point, then the frame has already been popped, and | |
| 242 // only the return needs to be executed. Don't deoptimize here. | |
| 243 return !nm->is_at_poll_return(pc()); | |
| 244 } | |
| 245 | |
| 246 bool frame::can_be_deoptimized() const { | |
| 247 if (!is_compiled_frame()) return false; | |
| 248 nmethod* nm = (nmethod*)_cb; | |
| 249 | |
| 250 if( !nm->can_be_deoptimized() ) | |
| 251 return false; | |
| 252 | |
| 253 return !nm->is_at_poll_return(pc()); | |
| 254 } | |
| 255 | |
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256 void frame::deoptimize(JavaThread* thread) { |
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257 // Schedule deoptimization of an nmethod activation with this frame. |
| 0 | 258 assert(_cb != NULL && _cb->is_nmethod(), "must be"); |
| 259 nmethod* nm = (nmethod*)_cb; | |
| 260 | |
| 261 // This is a fix for register window patching race | |
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262 if (NeedsDeoptSuspend && Thread::current() != thread) { |
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263 assert(SafepointSynchronize::is_at_safepoint(), |
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264 "patching other threads for deopt may only occur at a safepoint"); |
| 0 | 265 |
| 266 // It is possible especially with DeoptimizeALot/DeoptimizeRandom that | |
| 267 // we could see the frame again and ask for it to be deoptimized since | |
| 268 // it might move for a long time. That is harmless and we just ignore it. | |
| 269 if (id() == thread->must_deopt_id()) { | |
| 270 assert(thread->is_deopt_suspend(), "lost suspension"); | |
| 271 return; | |
| 272 } | |
| 273 | |
| 274 // We are at a safepoint so the target thread can only be | |
| 275 // in 4 states: | |
| 276 // blocked - no problem | |
| 277 // blocked_trans - no problem (i.e. could have woken up from blocked | |
| 278 // during a safepoint). | |
| 279 // native - register window pc patching race | |
| 280 // native_trans - momentary state | |
| 281 // | |
| 282 // We could just wait out a thread in native_trans to block. | |
| 283 // Then we'd have all the issues that the safepoint code has as to | |
| 284 // whether to spin or block. It isn't worth it. Just treat it like | |
| 285 // native and be done with it. | |
| 286 // | |
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287 // Examine the state of the thread at the start of safepoint since |
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288 // threads that were in native at the start of the safepoint could |
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289 // come to a halt during the safepoint, changing the current value |
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290 // of the safepoint_state. |
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291 JavaThreadState state = thread->safepoint_state()->orig_thread_state(); |
| 0 | 292 if (state == _thread_in_native || state == _thread_in_native_trans) { |
| 293 // Since we are at a safepoint the target thread will stop itself | |
| 294 // before it can return to java as long as we remain at the safepoint. | |
| 295 // Therefore we can put an additional request for the thread to stop | |
| 296 // no matter what no (like a suspend). This will cause the thread | |
| 297 // to notice it needs to do the deopt on its own once it leaves native. | |
| 298 // | |
| 299 // The only reason we must do this is because on machine with register | |
| 300 // windows we have a race with patching the return address and the | |
| 301 // window coming live as the thread returns to the Java code (but still | |
| 302 // in native mode) and then blocks. It is only this top most frame | |
| 303 // that is at risk. So in truth we could add an additional check to | |
| 304 // see if this frame is one that is at risk. | |
| 305 RegisterMap map(thread, false); | |
| 306 frame at_risk = thread->last_frame().sender(&map); | |
| 307 if (id() == at_risk.id()) { | |
| 308 thread->set_must_deopt_id(id()); | |
| 309 thread->set_deopt_suspend(); | |
| 310 return; | |
| 311 } | |
| 312 } | |
| 313 } // NeedsDeoptSuspend | |
| 314 | |
| 315 | |
| 1204 | 316 // If the call site is a MethodHandle call site use the MH deopt |
| 317 // handler. | |
| 318 address deopt = nm->is_method_handle_return(pc()) ? | |
| 319 nm->deopt_mh_handler_begin() : | |
| 320 nm->deopt_handler_begin(); | |
| 321 | |
| 0 | 322 // Save the original pc before we patch in the new one |
| 323 nm->set_original_pc(this, pc()); | |
| 324 patch_pc(thread, deopt); | |
| 1204 | 325 |
| 0 | 326 #ifdef ASSERT |
| 327 { | |
| 328 RegisterMap map(thread, false); | |
| 329 frame check = thread->last_frame(); | |
| 330 while (id() != check.id()) { | |
| 331 check = check.sender(&map); | |
| 332 } | |
| 333 assert(check.is_deoptimized_frame(), "missed deopt"); | |
| 334 } | |
| 335 #endif // ASSERT | |
| 336 } | |
| 337 | |
| 338 frame frame::java_sender() const { | |
| 339 RegisterMap map(JavaThread::current(), false); | |
| 340 frame s; | |
| 341 for (s = sender(&map); !(s.is_java_frame() || s.is_first_frame()); s = s.sender(&map)) ; | |
| 342 guarantee(s.is_java_frame(), "tried to get caller of first java frame"); | |
| 343 return s; | |
| 344 } | |
| 345 | |
| 346 frame frame::real_sender(RegisterMap* map) const { | |
| 347 frame result = sender(map); | |
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348 while (result.is_runtime_frame() || |
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349 result.is_ignored_frame()) { |
| 0 | 350 result = result.sender(map); |
| 351 } | |
| 352 return result; | |
| 353 } | |
| 354 | |
| 355 // Note: called by profiler - NOT for current thread | |
| 356 frame frame::profile_find_Java_sender_frame(JavaThread *thread) { | |
| 357 // If we don't recognize this frame, walk back up the stack until we do | |
| 358 RegisterMap map(thread, false); | |
| 359 frame first_java_frame = frame(); | |
| 360 | |
| 361 // Find the first Java frame on the stack starting with input frame | |
| 362 if (is_java_frame()) { | |
| 363 // top frame is compiled frame or deoptimized frame | |
| 364 first_java_frame = *this; | |
| 365 } else if (safe_for_sender(thread)) { | |
| 366 for (frame sender_frame = sender(&map); | |
| 367 sender_frame.safe_for_sender(thread) && !sender_frame.is_first_frame(); | |
| 368 sender_frame = sender_frame.sender(&map)) { | |
| 369 if (sender_frame.is_java_frame()) { | |
| 370 first_java_frame = sender_frame; | |
| 371 break; | |
| 372 } | |
| 373 } | |
| 374 } | |
| 375 return first_java_frame; | |
| 376 } | |
| 377 | |
| 378 // Interpreter frames | |
| 379 | |
| 380 | |
| 381 void frame::interpreter_frame_set_locals(intptr_t* locs) { | |
| 382 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 383 *interpreter_frame_locals_addr() = locs; | |
| 384 } | |
| 385 | |
| 386 methodOop frame::interpreter_frame_method() const { | |
| 387 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 388 methodOop m = *interpreter_frame_method_addr(); | |
| 389 assert(m->is_perm(), "bad methodOop in interpreter frame"); | |
| 390 assert(m->is_method(), "not a methodOop"); | |
| 391 return m; | |
| 392 } | |
| 393 | |
| 394 void frame::interpreter_frame_set_method(methodOop method) { | |
| 395 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 396 *interpreter_frame_method_addr() = method; | |
| 397 } | |
| 398 | |
| 399 void frame::interpreter_frame_set_bcx(intptr_t bcx) { | |
| 400 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 401 if (ProfileInterpreter) { | |
| 402 bool formerly_bci = is_bci(interpreter_frame_bcx()); | |
| 403 bool is_now_bci = is_bci(bcx); | |
| 404 *interpreter_frame_bcx_addr() = bcx; | |
| 405 | |
| 406 intptr_t mdx = interpreter_frame_mdx(); | |
| 407 | |
| 408 if (mdx != 0) { | |
| 409 if (formerly_bci) { | |
| 410 if (!is_now_bci) { | |
| 411 // The bcx was just converted from bci to bcp. | |
| 412 // Convert the mdx in parallel. | |
| 413 methodDataOop mdo = interpreter_frame_method()->method_data(); | |
| 414 assert(mdo != NULL, ""); | |
| 415 int mdi = mdx - 1; // We distinguish valid mdi from zero by adding one. | |
| 416 address mdp = mdo->di_to_dp(mdi); | |
| 417 interpreter_frame_set_mdx((intptr_t)mdp); | |
| 418 } | |
| 419 } else { | |
| 420 if (is_now_bci) { | |
| 421 // The bcx was just converted from bcp to bci. | |
| 422 // Convert the mdx in parallel. | |
| 423 methodDataOop mdo = interpreter_frame_method()->method_data(); | |
| 424 assert(mdo != NULL, ""); | |
| 425 int mdi = mdo->dp_to_di((address)mdx); | |
| 426 interpreter_frame_set_mdx((intptr_t)mdi + 1); // distinguish valid from 0. | |
| 427 } | |
| 428 } | |
| 429 } | |
| 430 } else { | |
| 431 *interpreter_frame_bcx_addr() = bcx; | |
| 432 } | |
| 433 } | |
| 434 | |
| 435 jint frame::interpreter_frame_bci() const { | |
| 436 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 437 intptr_t bcx = interpreter_frame_bcx(); | |
| 438 return is_bci(bcx) ? bcx : interpreter_frame_method()->bci_from((address)bcx); | |
| 439 } | |
| 440 | |
| 441 void frame::interpreter_frame_set_bci(jint bci) { | |
| 442 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 443 assert(!is_bci(interpreter_frame_bcx()), "should not set bci during GC"); | |
| 444 interpreter_frame_set_bcx((intptr_t)interpreter_frame_method()->bcp_from(bci)); | |
| 445 } | |
| 446 | |
| 447 address frame::interpreter_frame_bcp() const { | |
| 448 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 449 intptr_t bcx = interpreter_frame_bcx(); | |
| 450 return is_bci(bcx) ? interpreter_frame_method()->bcp_from(bcx) : (address)bcx; | |
| 451 } | |
| 452 | |
| 453 void frame::interpreter_frame_set_bcp(address bcp) { | |
| 454 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 455 assert(!is_bci(interpreter_frame_bcx()), "should not set bcp during GC"); | |
| 456 interpreter_frame_set_bcx((intptr_t)bcp); | |
| 457 } | |
| 458 | |
| 459 void frame::interpreter_frame_set_mdx(intptr_t mdx) { | |
| 460 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 461 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 462 *interpreter_frame_mdx_addr() = mdx; | |
| 463 } | |
| 464 | |
| 465 address frame::interpreter_frame_mdp() const { | |
| 466 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 467 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 468 intptr_t bcx = interpreter_frame_bcx(); | |
| 469 intptr_t mdx = interpreter_frame_mdx(); | |
| 470 | |
| 471 assert(!is_bci(bcx), "should not access mdp during GC"); | |
| 472 return (address)mdx; | |
| 473 } | |
| 474 | |
| 475 void frame::interpreter_frame_set_mdp(address mdp) { | |
| 476 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 477 if (mdp == NULL) { | |
| 478 // Always allow the mdp to be cleared. | |
| 479 interpreter_frame_set_mdx((intptr_t)mdp); | |
| 480 } | |
| 481 intptr_t bcx = interpreter_frame_bcx(); | |
| 482 assert(!is_bci(bcx), "should not set mdp during GC"); | |
| 483 interpreter_frame_set_mdx((intptr_t)mdp); | |
| 484 } | |
| 485 | |
| 486 BasicObjectLock* frame::next_monitor_in_interpreter_frame(BasicObjectLock* current) const { | |
| 487 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 488 #ifdef ASSERT | |
| 489 interpreter_frame_verify_monitor(current); | |
| 490 #endif | |
| 491 BasicObjectLock* next = (BasicObjectLock*) (((intptr_t*) current) + interpreter_frame_monitor_size()); | |
| 492 return next; | |
| 493 } | |
| 494 | |
| 495 BasicObjectLock* frame::previous_monitor_in_interpreter_frame(BasicObjectLock* current) const { | |
| 496 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 497 #ifdef ASSERT | |
| 498 // // This verification needs to be checked before being enabled | |
| 499 // interpreter_frame_verify_monitor(current); | |
| 500 #endif | |
| 501 BasicObjectLock* previous = (BasicObjectLock*) (((intptr_t*) current) - interpreter_frame_monitor_size()); | |
| 502 return previous; | |
| 503 } | |
| 504 | |
| 505 // Interpreter locals and expression stack locations. | |
| 506 | |
| 507 intptr_t* frame::interpreter_frame_local_at(int index) const { | |
| 508 const int n = Interpreter::local_offset_in_bytes(index)/wordSize; | |
| 509 return &((*interpreter_frame_locals_addr())[n]); | |
| 510 } | |
| 511 | |
| 512 intptr_t* frame::interpreter_frame_expression_stack_at(jint offset) const { | |
| 513 const int i = offset * interpreter_frame_expression_stack_direction(); | |
| 1506 | 514 const int n = i * Interpreter::stackElementWords; |
| 0 | 515 return &(interpreter_frame_expression_stack()[n]); |
| 516 } | |
| 517 | |
| 518 jint frame::interpreter_frame_expression_stack_size() const { | |
| 519 // Number of elements on the interpreter expression stack | |
| 520 // Callers should span by stackElementWords | |
| 1506 | 521 int element_size = Interpreter::stackElementWords; |
| 0 | 522 if (frame::interpreter_frame_expression_stack_direction() < 0) { |
| 523 return (interpreter_frame_expression_stack() - | |
| 524 interpreter_frame_tos_address() + 1)/element_size; | |
| 525 } else { | |
| 526 return (interpreter_frame_tos_address() - | |
| 527 interpreter_frame_expression_stack() + 1)/element_size; | |
| 528 } | |
| 529 } | |
| 530 | |
| 531 | |
| 532 // (frame::interpreter_frame_sender_sp accessor is in frame_<arch>.cpp) | |
| 533 | |
| 534 const char* frame::print_name() const { | |
| 535 if (is_native_frame()) return "Native"; | |
| 536 if (is_interpreted_frame()) return "Interpreted"; | |
| 537 if (is_compiled_frame()) { | |
| 538 if (is_deoptimized_frame()) return "Deoptimized"; | |
| 539 return "Compiled"; | |
| 540 } | |
| 541 if (sp() == NULL) return "Empty"; | |
| 542 return "C"; | |
| 543 } | |
| 544 | |
| 545 void frame::print_value_on(outputStream* st, JavaThread *thread) const { | |
| 546 NOT_PRODUCT(address begin = pc()-40;) | |
| 547 NOT_PRODUCT(address end = NULL;) | |
| 548 | |
| 549 st->print("%s frame (sp=" INTPTR_FORMAT " unextended sp=" INTPTR_FORMAT, print_name(), sp(), unextended_sp()); | |
| 550 if (sp() != NULL) | |
| 551 st->print(", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT, fp(), pc()); | |
| 552 | |
| 553 if (StubRoutines::contains(pc())) { | |
| 554 st->print_cr(")"); | |
| 555 st->print("("); | |
| 556 StubCodeDesc* desc = StubCodeDesc::desc_for(pc()); | |
| 557 st->print("~Stub::%s", desc->name()); | |
| 558 NOT_PRODUCT(begin = desc->begin(); end = desc->end();) | |
| 559 } else if (Interpreter::contains(pc())) { | |
| 560 st->print_cr(")"); | |
| 561 st->print("("); | |
| 562 InterpreterCodelet* desc = Interpreter::codelet_containing(pc()); | |
| 563 if (desc != NULL) { | |
| 564 st->print("~"); | |
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565 desc->print_on(st); |
| 0 | 566 NOT_PRODUCT(begin = desc->code_begin(); end = desc->code_end();) |
| 567 } else { | |
| 568 st->print("~interpreter"); | |
| 569 } | |
| 570 } | |
| 571 st->print_cr(")"); | |
| 572 | |
| 573 if (_cb != NULL) { | |
| 574 st->print(" "); | |
| 575 _cb->print_value_on(st); | |
| 576 st->cr(); | |
| 577 #ifndef PRODUCT | |
| 578 if (end == NULL) { | |
| 1748 | 579 begin = _cb->code_begin(); |
| 580 end = _cb->code_end(); | |
| 0 | 581 } |
| 582 #endif | |
| 583 } | |
| 584 NOT_PRODUCT(if (WizardMode && Verbose) Disassembler::decode(begin, end);) | |
| 585 } | |
| 586 | |
| 587 | |
| 588 void frame::print_on(outputStream* st) const { | |
| 589 print_value_on(st,NULL); | |
| 590 if (is_interpreted_frame()) { | |
| 591 interpreter_frame_print_on(st); | |
| 592 } | |
| 593 } | |
| 594 | |
| 595 | |
| 596 void frame::interpreter_frame_print_on(outputStream* st) const { | |
| 597 #ifndef PRODUCT | |
| 598 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 599 jint i; | |
| 600 for (i = 0; i < interpreter_frame_method()->max_locals(); i++ ) { | |
| 601 intptr_t x = *interpreter_frame_local_at(i); | |
| 602 st->print(" - local [" INTPTR_FORMAT "]", x); | |
| 603 st->fill_to(23); | |
| 604 st->print_cr("; #%d", i); | |
| 605 } | |
| 606 for (i = interpreter_frame_expression_stack_size() - 1; i >= 0; --i ) { | |
| 607 intptr_t x = *interpreter_frame_expression_stack_at(i); | |
| 608 st->print(" - stack [" INTPTR_FORMAT "]", x); | |
| 609 st->fill_to(23); | |
| 610 st->print_cr("; #%d", i); | |
| 611 } | |
| 612 // locks for synchronization | |
| 613 for (BasicObjectLock* current = interpreter_frame_monitor_end(); | |
| 614 current < interpreter_frame_monitor_begin(); | |
| 615 current = next_monitor_in_interpreter_frame(current)) { | |
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616 st->print(" - obj ["); |
| 0 | 617 current->obj()->print_value_on(st); |
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618 st->print_cr("]"); |
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619 st->print(" - lock ["); |
| 0 | 620 current->lock()->print_on(st); |
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621 st->print_cr("]"); |
| 0 | 622 } |
| 623 // monitor | |
| 624 st->print_cr(" - monitor[" INTPTR_FORMAT "]", interpreter_frame_monitor_begin()); | |
| 625 // bcp | |
| 626 st->print(" - bcp [" INTPTR_FORMAT "]", interpreter_frame_bcp()); | |
| 627 st->fill_to(23); | |
| 628 st->print_cr("; @%d", interpreter_frame_bci()); | |
| 629 // locals | |
| 630 st->print_cr(" - locals [" INTPTR_FORMAT "]", interpreter_frame_local_at(0)); | |
| 631 // method | |
| 632 st->print(" - method [" INTPTR_FORMAT "]", (address)interpreter_frame_method()); | |
| 633 st->fill_to(23); | |
| 634 st->print("; "); | |
| 635 interpreter_frame_method()->print_name(st); | |
| 636 st->cr(); | |
| 637 #endif | |
| 638 } | |
| 639 | |
| 640 // Return whether the frame is in the VM or os indicating a Hotspot problem. | |
| 641 // Otherwise, it's likely a bug in the native library that the Java code calls, | |
| 642 // hopefully indicating where to submit bugs. | |
| 643 static void print_C_frame(outputStream* st, char* buf, int buflen, address pc) { | |
| 644 // C/C++ frame | |
| 645 bool in_vm = os::address_is_in_vm(pc); | |
| 646 st->print(in_vm ? "V" : "C"); | |
| 647 | |
| 648 int offset; | |
| 649 bool found; | |
| 650 | |
| 651 // libname | |
| 652 found = os::dll_address_to_library_name(pc, buf, buflen, &offset); | |
| 653 if (found) { | |
| 654 // skip directory names | |
| 655 const char *p1, *p2; | |
| 656 p1 = buf; | |
| 657 int len = (int)strlen(os::file_separator()); | |
| 658 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
| 659 st->print(" [%s+0x%x]", p1, offset); | |
| 660 } else { | |
| 661 st->print(" " PTR_FORMAT, pc); | |
| 662 } | |
| 663 | |
| 664 // function name - os::dll_address_to_function_name() may return confusing | |
| 665 // names if pc is within jvm.dll or libjvm.so, because JVM only has | |
| 666 // JVM_xxxx and a few other symbols in the dynamic symbol table. Do this | |
| 667 // only for native libraries. | |
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668 if (!in_vm || Decoder::can_decode_C_frame_in_vm()) { |
| 0 | 669 found = os::dll_address_to_function_name(pc, buf, buflen, &offset); |
| 670 | |
| 671 if (found) { | |
| 672 st->print(" %s+0x%x", buf, offset); | |
| 673 } | |
| 674 } | |
| 675 } | |
| 676 | |
| 677 // frame::print_on_error() is called by fatal error handler. Notice that we may | |
| 678 // crash inside this function if stack frame is corrupted. The fatal error | |
| 679 // handler can catch and handle the crash. Here we assume the frame is valid. | |
| 680 // | |
| 681 // First letter indicates type of the frame: | |
| 682 // J: Java frame (compiled) | |
| 683 // j: Java frame (interpreted) | |
| 684 // V: VM frame (C/C++) | |
| 685 // v: Other frames running VM generated code (e.g. stubs, adapters, etc.) | |
| 686 // C: C/C++ frame | |
| 687 // | |
| 688 // We don't need detailed frame type as that in frame::print_name(). "C" | |
| 689 // suggests the problem is in user lib; everything else is likely a VM bug. | |
| 690 | |
| 691 void frame::print_on_error(outputStream* st, char* buf, int buflen, bool verbose) const { | |
| 692 if (_cb != NULL) { | |
| 693 if (Interpreter::contains(pc())) { | |
| 694 methodOop m = this->interpreter_frame_method(); | |
| 695 if (m != NULL) { | |
| 696 m->name_and_sig_as_C_string(buf, buflen); | |
| 697 st->print("j %s", buf); | |
| 698 st->print("+%d", this->interpreter_frame_bci()); | |
| 699 } else { | |
| 700 st->print("j " PTR_FORMAT, pc()); | |
| 701 } | |
| 702 } else if (StubRoutines::contains(pc())) { | |
| 703 StubCodeDesc* desc = StubCodeDesc::desc_for(pc()); | |
| 704 if (desc != NULL) { | |
| 705 st->print("v ~StubRoutines::%s", desc->name()); | |
| 706 } else { | |
| 707 st->print("v ~StubRoutines::" PTR_FORMAT, pc()); | |
| 708 } | |
| 709 } else if (_cb->is_buffer_blob()) { | |
| 710 st->print("v ~BufferBlob::%s", ((BufferBlob *)_cb)->name()); | |
| 711 } else if (_cb->is_nmethod()) { | |
| 712 methodOop m = ((nmethod *)_cb)->method(); | |
| 713 if (m != NULL) { | |
| 714 m->name_and_sig_as_C_string(buf, buflen); | |
| 715 st->print("J %s", buf); | |
| 716 } else { | |
| 717 st->print("J " PTR_FORMAT, pc()); | |
| 718 } | |
| 719 } else if (_cb->is_runtime_stub()) { | |
| 720 st->print("v ~RuntimeStub::%s", ((RuntimeStub *)_cb)->name()); | |
| 721 } else if (_cb->is_deoptimization_stub()) { | |
| 722 st->print("v ~DeoptimizationBlob"); | |
| 723 } else if (_cb->is_exception_stub()) { | |
| 724 st->print("v ~ExceptionBlob"); | |
| 725 } else if (_cb->is_safepoint_stub()) { | |
| 726 st->print("v ~SafepointBlob"); | |
| 727 } else { | |
| 728 st->print("v blob " PTR_FORMAT, pc()); | |
| 729 } | |
| 730 } else { | |
| 731 print_C_frame(st, buf, buflen, pc()); | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 | |
| 736 /* | |
| 737 The interpreter_frame_expression_stack_at method in the case of SPARC needs the | |
| 738 max_stack value of the method in order to compute the expression stack address. | |
| 739 It uses the methodOop in order to get the max_stack value but during GC this | |
| 740 methodOop value saved on the frame is changed by reverse_and_push and hence cannot | |
| 741 be used. So we save the max_stack value in the FrameClosure object and pass it | |
| 742 down to the interpreter_frame_expression_stack_at method | |
| 743 */ | |
| 744 class InterpreterFrameClosure : public OffsetClosure { | |
| 745 private: | |
| 746 frame* _fr; | |
| 747 OopClosure* _f; | |
| 748 int _max_locals; | |
| 749 int _max_stack; | |
| 750 | |
| 751 public: | |
| 752 InterpreterFrameClosure(frame* fr, int max_locals, int max_stack, | |
| 753 OopClosure* f) { | |
| 754 _fr = fr; | |
| 755 _max_locals = max_locals; | |
| 756 _max_stack = max_stack; | |
| 757 _f = f; | |
| 758 } | |
| 759 | |
| 760 void offset_do(int offset) { | |
| 761 oop* addr; | |
| 762 if (offset < _max_locals) { | |
| 763 addr = (oop*) _fr->interpreter_frame_local_at(offset); | |
| 764 assert((intptr_t*)addr >= _fr->sp(), "must be inside the frame"); | |
| 765 _f->do_oop(addr); | |
| 766 } else { | |
| 767 addr = (oop*) _fr->interpreter_frame_expression_stack_at((offset - _max_locals)); | |
| 768 // In case of exceptions, the expression stack is invalid and the esp will be reset to express | |
| 769 // this condition. Therefore, we call f only if addr is 'inside' the stack (i.e., addr >= esp for Intel). | |
| 770 bool in_stack; | |
| 771 if (frame::interpreter_frame_expression_stack_direction() > 0) { | |
| 772 in_stack = (intptr_t*)addr <= _fr->interpreter_frame_tos_address(); | |
| 773 } else { | |
| 774 in_stack = (intptr_t*)addr >= _fr->interpreter_frame_tos_address(); | |
| 775 } | |
| 776 if (in_stack) { | |
| 777 _f->do_oop(addr); | |
| 778 } | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 int max_locals() { return _max_locals; } | |
| 783 frame* fr() { return _fr; } | |
| 784 }; | |
| 785 | |
| 786 | |
| 787 class InterpretedArgumentOopFinder: public SignatureInfo { | |
| 788 private: | |
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789 OopClosure* _f; // Closure to invoke |
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790 int _offset; // TOS-relative offset, decremented with each argument |
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791 bool _has_receiver; // true if the callee has a receiver |
| 0 | 792 frame* _fr; |
| 793 | |
| 794 void set(int size, BasicType type) { | |
| 795 _offset -= size; | |
| 796 if (type == T_OBJECT || type == T_ARRAY) oop_offset_do(); | |
| 797 } | |
| 798 | |
| 799 void oop_offset_do() { | |
| 800 oop* addr; | |
| 801 addr = (oop*)_fr->interpreter_frame_tos_at(_offset); | |
| 802 _f->do_oop(addr); | |
| 803 } | |
| 804 | |
| 805 public: | |
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806 InterpretedArgumentOopFinder(Symbol* signature, bool has_receiver, frame* fr, OopClosure* f) : SignatureInfo(signature), _has_receiver(has_receiver) { |
| 0 | 807 // compute size of arguments |
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808 int args_size = ArgumentSizeComputer(signature).size() + (has_receiver ? 1 : 0); |
| 0 | 809 assert(!fr->is_interpreted_frame() || |
| 810 args_size <= fr->interpreter_frame_expression_stack_size(), | |
| 811 "args cannot be on stack anymore"); | |
| 812 // initialize InterpretedArgumentOopFinder | |
| 813 _f = f; | |
| 814 _fr = fr; | |
| 815 _offset = args_size; | |
| 816 } | |
| 817 | |
| 818 void oops_do() { | |
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819 if (_has_receiver) { |
| 0 | 820 --_offset; |
| 821 oop_offset_do(); | |
| 822 } | |
| 823 iterate_parameters(); | |
| 824 } | |
| 825 }; | |
| 826 | |
| 827 | |
| 828 // Entry frame has following form (n arguments) | |
| 829 // +-----------+ | |
| 830 // sp -> | last arg | | |
| 831 // +-----------+ | |
| 832 // : ::: : | |
| 833 // +-----------+ | |
| 834 // (sp+n)->| first arg| | |
| 835 // +-----------+ | |
| 836 | |
| 837 | |
| 838 | |
| 839 // visits and GC's all the arguments in entry frame | |
| 840 class EntryFrameOopFinder: public SignatureInfo { | |
| 841 private: | |
| 842 bool _is_static; | |
| 843 int _offset; | |
| 844 frame* _fr; | |
| 845 OopClosure* _f; | |
| 846 | |
| 847 void set(int size, BasicType type) { | |
| 848 assert (_offset >= 0, "illegal offset"); | |
| 849 if (type == T_OBJECT || type == T_ARRAY) oop_at_offset_do(_offset); | |
| 850 _offset -= size; | |
| 851 } | |
| 852 | |
| 853 void oop_at_offset_do(int offset) { | |
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854 assert (offset >= 0, "illegal offset"); |
| 0 | 855 oop* addr = (oop*) _fr->entry_frame_argument_at(offset); |
| 856 _f->do_oop(addr); | |
| 857 } | |
| 858 | |
| 859 public: | |
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860 EntryFrameOopFinder(frame* frame, Symbol* signature, bool is_static) : SignatureInfo(signature) { |
| 0 | 861 _f = NULL; // will be set later |
| 862 _fr = frame; | |
| 863 _is_static = is_static; | |
| 864 _offset = ArgumentSizeComputer(signature).size() - 1; // last parameter is at index 0 | |
| 865 } | |
| 866 | |
| 867 void arguments_do(OopClosure* f) { | |
| 868 _f = f; | |
| 869 if (!_is_static) oop_at_offset_do(_offset+1); // do the receiver | |
| 870 iterate_parameters(); | |
| 871 } | |
| 872 | |
| 873 }; | |
| 874 | |
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875 oop* frame::interpreter_callee_receiver_addr(Symbol* signature) { |
| 0 | 876 ArgumentSizeComputer asc(signature); |
| 877 int size = asc.size(); | |
| 878 return (oop *)interpreter_frame_tos_at(size); | |
| 879 } | |
| 880 | |
| 881 | |
| 882 void frame::oops_interpreted_do(OopClosure* f, const RegisterMap* map, bool query_oop_map_cache) { | |
| 883 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 884 assert(map != NULL, "map must be set"); | |
| 885 Thread *thread = Thread::current(); | |
| 886 methodHandle m (thread, interpreter_frame_method()); | |
| 887 jint bci = interpreter_frame_bci(); | |
| 888 | |
| 889 assert(Universe::heap()->is_in(m()), "must be valid oop"); | |
| 890 assert(m->is_method(), "checking frame value"); | |
| 891 assert((m->is_native() && bci == 0) || (!m->is_native() && bci >= 0 && bci < m->code_size()), "invalid bci value"); | |
| 892 | |
| 893 // Handle the monitor elements in the activation | |
| 894 for ( | |
| 895 BasicObjectLock* current = interpreter_frame_monitor_end(); | |
| 896 current < interpreter_frame_monitor_begin(); | |
| 897 current = next_monitor_in_interpreter_frame(current) | |
| 898 ) { | |
| 899 #ifdef ASSERT | |
| 900 interpreter_frame_verify_monitor(current); | |
| 901 #endif | |
| 902 current->oops_do(f); | |
| 903 } | |
| 904 | |
| 905 // process fixed part | |
| 906 f->do_oop((oop*)interpreter_frame_method_addr()); | |
| 907 f->do_oop((oop*)interpreter_frame_cache_addr()); | |
| 908 | |
| 909 // Hmm what about the mdp? | |
| 910 #ifdef CC_INTERP | |
| 911 // Interpreter frame in the midst of a call have a methodOop within the | |
| 912 // object. | |
| 913 interpreterState istate = get_interpreterState(); | |
| 914 if (istate->msg() == BytecodeInterpreter::call_method) { | |
| 915 f->do_oop((oop*)&istate->_result._to_call._callee); | |
| 916 } | |
| 917 | |
| 918 #endif /* CC_INTERP */ | |
| 919 | |
| 1908 | 920 #if !defined(PPC) || defined(ZERO) |
| 0 | 921 if (m->is_native()) { |
| 922 #ifdef CC_INTERP | |
| 923 f->do_oop((oop*)&istate->_oop_temp); | |
| 924 #else | |
| 925 f->do_oop((oop*)( fp() + interpreter_frame_oop_temp_offset )); | |
| 926 #endif /* CC_INTERP */ | |
| 927 } | |
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928 #else // PPC |
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929 if (m->is_native() && m->is_static()) { |
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930 f->do_oop(interpreter_frame_mirror_addr()); |
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931 } |
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932 #endif // PPC |
| 0 | 933 |
| 934 int max_locals = m->is_native() ? m->size_of_parameters() : m->max_locals(); | |
| 935 | |
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936 Symbol* signature = NULL; |
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937 bool has_receiver = false; |
| 0 | 938 |
| 939 // Process a callee's arguments if we are at a call site | |
| 940 // (i.e., if we are at an invoke bytecode) | |
| 941 // This is used sometimes for calling into the VM, not for another | |
| 942 // interpreted or compiled frame. | |
| 943 if (!m->is_native()) { | |
| 2142 | 944 Bytecode_invoke call = Bytecode_invoke_check(m, bci); |
| 945 if (call.is_valid()) { | |
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946 signature = call.signature(); |
| 2142 | 947 has_receiver = call.has_receiver(); |
| 0 | 948 if (map->include_argument_oops() && |
| 949 interpreter_frame_expression_stack_size() > 0) { | |
| 950 ResourceMark rm(thread); // is this right ??? | |
| 951 // we are at a call site & the expression stack is not empty | |
| 952 // => process callee's arguments | |
| 953 // | |
| 954 // Note: The expression stack can be empty if an exception | |
| 605 | 955 // occurred during method resolution/execution. In all |
| 0 | 956 // cases we empty the expression stack completely be- |
| 957 // fore handling the exception (the exception handling | |
| 958 // code in the interpreter calls a blocking runtime | |
| 959 // routine which can cause this code to be executed). | |
| 960 // (was bug gri 7/27/98) | |
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961 oops_interpreted_arguments_do(signature, has_receiver, f); |
| 0 | 962 } |
| 963 } | |
| 964 } | |
| 965 | |
| 1506 | 966 InterpreterFrameClosure blk(this, max_locals, m->max_stack(), f); |
| 967 | |
| 968 // process locals & expression stack | |
| 969 InterpreterOopMap mask; | |
| 970 if (query_oop_map_cache) { | |
| 971 m->mask_for(bci, &mask); | |
| 0 | 972 } else { |
| 1506 | 973 OopMapCache::compute_one_oop_map(m, bci, &mask); |
| 0 | 974 } |
| 1506 | 975 mask.iterate_oop(&blk); |
| 0 | 976 } |
| 977 | |
| 978 | |
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979 void frame::oops_interpreted_arguments_do(Symbol* signature, bool has_receiver, OopClosure* f) { |
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980 InterpretedArgumentOopFinder finder(signature, has_receiver, this, f); |
| 0 | 981 finder.oops_do(); |
| 982 } | |
| 983 | |
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984 void frame::oops_code_blob_do(OopClosure* f, CodeBlobClosure* cf, const RegisterMap* reg_map) { |
| 0 | 985 assert(_cb != NULL, "sanity check"); |
| 986 if (_cb->oop_maps() != NULL) { | |
| 987 OopMapSet::oops_do(this, reg_map, f); | |
| 988 | |
| 989 // Preserve potential arguments for a callee. We handle this by dispatching | |
| 990 // on the codeblob. For c2i, we do | |
| 991 if (reg_map->include_argument_oops()) { | |
| 992 _cb->preserve_callee_argument_oops(*this, reg_map, f); | |
| 993 } | |
| 994 } | |
| 995 // In cases where perm gen is collected, GC will want to mark | |
| 996 // oops referenced from nmethods active on thread stacks so as to | |
| 997 // prevent them from being collected. However, this visit should be | |
| 998 // restricted to certain phases of the collection only. The | |
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999 // closure decides how it wants nmethods to be traced. |
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1000 if (cf != NULL) |
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1001 cf->do_code_blob(_cb); |
| 0 | 1002 } |
| 1003 | |
| 1004 class CompiledArgumentOopFinder: public SignatureInfo { | |
| 1005 protected: | |
| 1006 OopClosure* _f; | |
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1007 int _offset; // the current offset, incremented with each argument |
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1008 bool _has_receiver; // true if the callee has a receiver |
| 0 | 1009 frame _fr; |
| 1010 RegisterMap* _reg_map; | |
| 1011 int _arg_size; | |
| 1012 VMRegPair* _regs; // VMReg list of arguments | |
| 1013 | |
| 1014 void set(int size, BasicType type) { | |
| 1015 if (type == T_OBJECT || type == T_ARRAY) handle_oop_offset(); | |
| 1016 _offset += size; | |
| 1017 } | |
| 1018 | |
| 1019 virtual void handle_oop_offset() { | |
| 1020 // Extract low order register number from register array. | |
| 1021 // In LP64-land, the high-order bits are valid but unhelpful. | |
| 1022 VMReg reg = _regs[_offset].first(); | |
| 1023 oop *loc = _fr.oopmapreg_to_location(reg, _reg_map); | |
| 1024 _f->do_oop(loc); | |
| 1025 } | |
| 1026 | |
| 1027 public: | |
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1028 CompiledArgumentOopFinder(Symbol* signature, bool has_receiver, OopClosure* f, frame fr, const RegisterMap* reg_map) |
| 0 | 1029 : SignatureInfo(signature) { |
| 1030 | |
| 1031 // initialize CompiledArgumentOopFinder | |
| 1032 _f = f; | |
| 1033 _offset = 0; | |
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1034 _has_receiver = has_receiver; |
| 0 | 1035 _fr = fr; |
| 1036 _reg_map = (RegisterMap*)reg_map; | |
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1037 _arg_size = ArgumentSizeComputer(signature).size() + (has_receiver ? 1 : 0); |
| 0 | 1038 |
| 1039 int arg_size; | |
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1040 _regs = SharedRuntime::find_callee_arguments(signature, has_receiver, &arg_size); |
| 0 | 1041 assert(arg_size == _arg_size, "wrong arg size"); |
| 1042 } | |
| 1043 | |
| 1044 void oops_do() { | |
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1045 if (_has_receiver) { |
| 0 | 1046 handle_oop_offset(); |
| 1047 _offset++; | |
| 1048 } | |
| 1049 iterate_parameters(); | |
| 1050 } | |
| 1051 }; | |
| 1052 | |
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1053 void frame::oops_compiled_arguments_do(Symbol* signature, bool has_receiver, const RegisterMap* reg_map, OopClosure* f) { |
| 0 | 1054 ResourceMark rm; |
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1055 CompiledArgumentOopFinder finder(signature, has_receiver, f, *this, reg_map); |
| 0 | 1056 finder.oops_do(); |
| 1057 } | |
| 1058 | |
| 1059 | |
| 1060 // Get receiver out of callers frame, i.e. find parameter 0 in callers | |
| 1061 // frame. Consult ADLC for where parameter 0 is to be found. Then | |
| 1062 // check local reg_map for it being a callee-save register or argument | |
| 1063 // register, both of which are saved in the local frame. If not found | |
| 1064 // there, it must be an in-stack argument of the caller. | |
| 1065 // Note: caller.sp() points to callee-arguments | |
| 1066 oop frame::retrieve_receiver(RegisterMap* reg_map) { | |
| 1067 frame caller = *this; | |
| 1068 | |
| 1069 // First consult the ADLC on where it puts parameter 0 for this signature. | |
| 1070 VMReg reg = SharedRuntime::name_for_receiver(); | |
| 1071 oop r = *caller.oopmapreg_to_location(reg, reg_map); | |
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1072 assert(Universe::heap()->is_in_or_null(r), err_msg("bad receiver: " INTPTR_FORMAT " (" INTX_FORMAT ")", (intptr_t) r, (intptr_t) r)); |
| 0 | 1073 return r; |
| 1074 } | |
| 1075 | |
| 1076 | |
| 1077 oop* frame::oopmapreg_to_location(VMReg reg, const RegisterMap* reg_map) const { | |
| 1078 if(reg->is_reg()) { | |
| 1079 // If it is passed in a register, it got spilled in the stub frame. | |
| 1080 return (oop *)reg_map->location(reg); | |
| 1081 } else { | |
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1082 int sp_offset_in_bytes = reg->reg2stack() * VMRegImpl::stack_slot_size; |
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1083 return (oop*)(((address)unextended_sp()) + sp_offset_in_bytes); |
| 0 | 1084 } |
| 1085 } | |
| 1086 | |
| 2019 | 1087 BasicLock* frame::get_native_monitor() { |
| 1088 nmethod* nm = (nmethod*)_cb; | |
| 1089 assert(_cb != NULL && _cb->is_nmethod() && nm->method()->is_native(), | |
| 1090 "Should not call this unless it's a native nmethod"); | |
| 1091 int byte_offset = in_bytes(nm->native_basic_lock_sp_offset()); | |
| 0 | 1092 assert(byte_offset >= 0, "should not see invalid offset"); |
| 1093 return (BasicLock*) &sp()[byte_offset / wordSize]; | |
| 1094 } | |
| 1095 | |
| 2019 | 1096 oop frame::get_native_receiver() { |
| 1097 nmethod* nm = (nmethod*)_cb; | |
| 1098 assert(_cb != NULL && _cb->is_nmethod() && nm->method()->is_native(), | |
| 1099 "Should not call this unless it's a native nmethod"); | |
| 1100 int byte_offset = in_bytes(nm->native_receiver_sp_offset()); | |
| 0 | 1101 assert(byte_offset >= 0, "should not see invalid offset"); |
| 1102 oop owner = ((oop*) sp())[byte_offset / wordSize]; | |
| 1103 assert( Universe::heap()->is_in(owner), "bad receiver" ); | |
| 1104 return owner; | |
| 1105 } | |
| 1106 | |
| 1107 void frame::oops_entry_do(OopClosure* f, const RegisterMap* map) { | |
| 1108 assert(map != NULL, "map must be set"); | |
| 1109 if (map->include_argument_oops()) { | |
| 1110 // must collect argument oops, as nobody else is doing it | |
| 1111 Thread *thread = Thread::current(); | |
| 1112 methodHandle m (thread, entry_frame_call_wrapper()->callee_method()); | |
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1113 EntryFrameOopFinder finder(this, m->signature(), m->is_static()); |
| 0 | 1114 finder.arguments_do(f); |
| 1115 } | |
| 1116 // Traverse the Handle Block saved in the entry frame | |
| 1117 entry_frame_call_wrapper()->oops_do(f); | |
| 1118 } | |
| 1119 | |
| 1120 | |
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1121 void frame::oops_do_internal(OopClosure* f, CodeBlobClosure* cf, RegisterMap* map, bool use_interpreter_oop_map_cache) { |
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1122 #ifndef PRODUCT |
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1123 // simulate GC crash here to dump java thread in error report |
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1124 if (CrashGCForDumpingJavaThread) { |
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1125 char *t = NULL; |
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1126 *t = 'c'; |
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1127 } |
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1128 #endif |
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1129 if (is_interpreted_frame()) { |
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1130 oops_interpreted_do(f, map, use_interpreter_oop_map_cache); |
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1131 } else if (is_entry_frame()) { |
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1132 oops_entry_do(f, map); |
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1133 } else if (CodeCache::contains(pc())) { |
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1134 oops_code_blob_do(f, cf, map); |
| 1692 | 1135 #ifdef SHARK |
| 1136 } else if (is_fake_stub_frame()) { | |
| 1137 // nothing to do | |
| 1138 #endif // SHARK | |
| 0 | 1139 } else { |
| 1140 ShouldNotReachHere(); | |
| 1141 } | |
| 1142 } | |
| 1143 | |
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1144 void frame::nmethods_do(CodeBlobClosure* cf) { |
| 0 | 1145 if (_cb != NULL && _cb->is_nmethod()) { |
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1146 cf->do_code_blob(_cb); |
| 0 | 1147 } |
| 1148 } | |
| 1149 | |
| 1150 | |
| 1151 void frame::gc_prologue() { | |
| 1152 if (is_interpreted_frame()) { | |
| 1153 // set bcx to bci to become methodOop position independent during GC | |
| 1154 interpreter_frame_set_bcx(interpreter_frame_bci()); | |
| 1155 } | |
| 1156 } | |
| 1157 | |
| 1158 | |
| 1159 void frame::gc_epilogue() { | |
| 1160 if (is_interpreted_frame()) { | |
| 1161 // set bcx back to bcp for interpreter | |
| 1162 interpreter_frame_set_bcx((intptr_t)interpreter_frame_bcp()); | |
| 1163 } | |
| 1164 // call processor specific epilog function | |
| 1165 pd_gc_epilog(); | |
| 1166 } | |
| 1167 | |
| 1168 | |
| 1169 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 1170 | |
| 1171 void frame::CheckValueClosure::do_oop(oop* p) { | |
| 1172 if (CheckOopishValues && Universe::heap()->is_in_reserved(*p)) { | |
| 1173 warning("value @ " INTPTR_FORMAT " looks oopish (" INTPTR_FORMAT ") (thread = " INTPTR_FORMAT ")", p, (address)*p, Thread::current()); | |
| 1174 } | |
| 1175 } | |
| 1176 frame::CheckValueClosure frame::_check_value; | |
| 1177 | |
| 1178 | |
| 1179 void frame::CheckOopClosure::do_oop(oop* p) { | |
| 1180 if (*p != NULL && !(*p)->is_oop()) { | |
| 1181 warning("value @ " INTPTR_FORMAT " should be an oop (" INTPTR_FORMAT ") (thread = " INTPTR_FORMAT ")", p, (address)*p, Thread::current()); | |
| 1182 } | |
| 1183 } | |
| 1184 frame::CheckOopClosure frame::_check_oop; | |
| 1185 | |
| 1186 void frame::check_derived_oop(oop* base, oop* derived) { | |
| 1187 _check_oop.do_oop(base); | |
| 1188 } | |
| 1189 | |
| 1190 | |
| 1191 void frame::ZapDeadClosure::do_oop(oop* p) { | |
| 1192 if (TraceZapDeadLocals) tty->print_cr("zapping @ " INTPTR_FORMAT " containing " INTPTR_FORMAT, p, (address)*p); | |
| 1193 // Need cast because on _LP64 the conversion to oop is ambiguous. Constant | |
| 1194 // can be either long or int. | |
| 1195 *p = (oop)(int)0xbabebabe; | |
| 1196 } | |
| 1197 frame::ZapDeadClosure frame::_zap_dead; | |
| 1198 | |
| 1199 void frame::zap_dead_locals(JavaThread* thread, const RegisterMap* map) { | |
| 1200 assert(thread == Thread::current(), "need to synchronize to do this to another thread"); | |
| 1201 // Tracing - part 1 | |
| 1202 if (TraceZapDeadLocals) { | |
| 1203 ResourceMark rm(thread); | |
| 1204 tty->print_cr("--------------------------------------------------------------------------------"); | |
| 1205 tty->print("Zapping dead locals in "); | |
| 1206 print_on(tty); | |
| 1207 tty->cr(); | |
| 1208 } | |
| 1209 // Zapping | |
| 1210 if (is_entry_frame ()) zap_dead_entry_locals (thread, map); | |
| 1211 else if (is_interpreted_frame()) zap_dead_interpreted_locals(thread, map); | |
| 1212 else if (is_compiled_frame()) zap_dead_compiled_locals (thread, map); | |
| 1213 | |
| 1214 else | |
| 1215 // could be is_runtime_frame | |
| 1216 // so remove error: ShouldNotReachHere(); | |
| 1217 ; | |
| 1218 // Tracing - part 2 | |
| 1219 if (TraceZapDeadLocals) { | |
| 1220 tty->cr(); | |
| 1221 } | |
| 1222 } | |
| 1223 | |
| 1224 | |
| 1225 void frame::zap_dead_interpreted_locals(JavaThread *thread, const RegisterMap* map) { | |
| 1226 // get current interpreter 'pc' | |
| 1227 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 1228 methodOop m = interpreter_frame_method(); | |
| 1229 int bci = interpreter_frame_bci(); | |
| 1230 | |
| 1231 int max_locals = m->is_native() ? m->size_of_parameters() : m->max_locals(); | |
| 1232 | |
| 1506 | 1233 // process dynamic part |
| 1234 InterpreterFrameClosure value_blk(this, max_locals, m->max_stack(), | |
| 1235 &_check_value); | |
| 1236 InterpreterFrameClosure oop_blk(this, max_locals, m->max_stack(), | |
| 1237 &_check_oop ); | |
| 1238 InterpreterFrameClosure dead_blk(this, max_locals, m->max_stack(), | |
| 1239 &_zap_dead ); | |
| 0 | 1240 |
| 1506 | 1241 // get frame map |
| 1242 InterpreterOopMap mask; | |
| 1243 m->mask_for(bci, &mask); | |
| 1244 mask.iterate_all( &oop_blk, &value_blk, &dead_blk); | |
| 0 | 1245 } |
| 1246 | |
| 1247 | |
| 1248 void frame::zap_dead_compiled_locals(JavaThread* thread, const RegisterMap* reg_map) { | |
| 1249 | |
| 1250 ResourceMark rm(thread); | |
| 1251 assert(_cb != NULL, "sanity check"); | |
| 1252 if (_cb->oop_maps() != NULL) { | |
|
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|
1253 OopMapSet::all_do(this, reg_map, &_check_oop, check_derived_oop, &_check_value); |
| 0 | 1254 } |
| 1255 } | |
| 1256 | |
| 1257 | |
| 1258 void frame::zap_dead_entry_locals(JavaThread*, const RegisterMap*) { | |
| 1259 if (TraceZapDeadLocals) warning("frame::zap_dead_entry_locals unimplemented"); | |
| 1260 } | |
| 1261 | |
| 1262 | |
| 1263 void frame::zap_dead_deoptimized_locals(JavaThread*, const RegisterMap*) { | |
| 1264 if (TraceZapDeadLocals) warning("frame::zap_dead_deoptimized_locals unimplemented"); | |
| 1265 } | |
| 1266 | |
| 1267 # endif // ENABLE_ZAP_DEAD_LOCALS | |
| 1268 | |
| 1269 void frame::verify(const RegisterMap* map) { | |
| 1270 // for now make sure receiver type is correct | |
| 1271 if (is_interpreted_frame()) { | |
| 1272 methodOop method = interpreter_frame_method(); | |
| 1273 guarantee(method->is_method(), "method is wrong in frame::verify"); | |
| 1274 if (!method->is_static()) { | |
| 1275 // fetch the receiver | |
| 1276 oop* p = (oop*) interpreter_frame_local_at(0); | |
| 1277 // make sure we have the right receiver type | |
| 1278 } | |
| 1279 } | |
| 1280 COMPILER2_PRESENT(assert(DerivedPointerTable::is_empty(), "must be empty before verify");) | |
|
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1281 oops_do_internal(&VerifyOopClosure::verify_oop, NULL, (RegisterMap*)map, false); |
| 0 | 1282 } |
| 1283 | |
| 1284 | |
| 1285 #ifdef ASSERT | |
| 1286 bool frame::verify_return_pc(address x) { | |
| 1287 if (StubRoutines::returns_to_call_stub(x)) { | |
| 1288 return true; | |
| 1289 } | |
| 1290 if (CodeCache::contains(x)) { | |
| 1291 return true; | |
| 1292 } | |
| 1293 if (Interpreter::contains(x)) { | |
| 1294 return true; | |
| 1295 } | |
| 1296 return false; | |
| 1297 } | |
| 1298 #endif | |
| 1299 | |
| 1300 #ifdef ASSERT | |
| 1301 void frame::interpreter_frame_verify_monitor(BasicObjectLock* value) const { | |
| 1302 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
| 1303 // verify that the value is in the right part of the frame | |
| 1304 address low_mark = (address) interpreter_frame_monitor_end(); | |
| 1305 address high_mark = (address) interpreter_frame_monitor_begin(); | |
| 1306 address current = (address) value; | |
| 1307 | |
| 1308 const int monitor_size = frame::interpreter_frame_monitor_size(); | |
| 1309 guarantee((high_mark - current) % monitor_size == 0 , "Misaligned top of BasicObjectLock*"); | |
| 1310 guarantee( high_mark > current , "Current BasicObjectLock* higher than high_mark"); | |
| 1311 | |
| 1312 guarantee((current - low_mark) % monitor_size == 0 , "Misaligned bottom of BasicObjectLock*"); | |
| 1313 guarantee( current >= low_mark , "Current BasicObjectLock* below than low_mark"); | |
| 1314 } | |
|
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1315 #endif |
|
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1316 |
|
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1317 #ifndef PRODUCT |
|
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1318 void frame::describe(FrameValues& values, int frame_no) { |
|
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1319 // boundaries: sp and the 'real' frame pointer |
|
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|
1320 values.describe(-1, sp(), err_msg("sp for #%d", frame_no), 1); |
|
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1321 intptr_t* frame_pointer = real_fp(); // Note: may differ from fp() |
|
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|
1322 |
|
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|
1323 // print frame info at the highest boundary |
|
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|
1324 intptr_t* info_address = MAX2(sp(), frame_pointer); |
|
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|
1325 |
|
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|
1326 if (info_address != frame_pointer) { |
|
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|
1327 // print frame_pointer explicitly if not marked by the frame info |
|
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|
1328 values.describe(-1, frame_pointer, err_msg("frame pointer for #%d", frame_no), 1); |
|
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|
1329 } |
|
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|
1330 |
|
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|
1331 if (is_entry_frame() || is_compiled_frame() || is_interpreted_frame() || is_native_frame()) { |
|
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|
1332 // Label values common to most frames |
|
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|
1333 values.describe(-1, unextended_sp(), err_msg("unextended_sp for #%d", frame_no)); |
|
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|
1334 } |
|
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|
1335 |
|
3336
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|
1336 if (is_interpreted_frame()) { |
|
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|
1337 methodOop m = interpreter_frame_method(); |
|
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|
1338 int bci = interpreter_frame_bci(); |
|
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|
1339 |
|
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changeset
|
1340 // Label the method and current bci |
|
4818
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changeset
|
1341 values.describe(-1, info_address, |
|
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|
1342 FormatBuffer<1024>("#%d method %s @ %d", frame_no, m->name_and_sig_as_C_string(), bci), 2); |
|
4818
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changeset
|
1343 values.describe(-1, info_address, |
|
3336
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|
1344 err_msg("- %d locals %d max stack", m->max_locals(), m->max_stack()), 1); |
|
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|
1345 if (m->max_locals() > 0) { |
|
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|
1346 intptr_t* l0 = interpreter_frame_local_at(0); |
|
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changeset
|
1347 intptr_t* ln = interpreter_frame_local_at(m->max_locals() - 1); |
|
2e038ad0c1d0
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changeset
|
1348 values.describe(-1, MAX2(l0, ln), err_msg("locals for #%d", frame_no), 1); |
|
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|
1349 // Report each local and mark as owned by this frame |
|
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changeset
|
1350 for (int l = 0; l < m->max_locals(); l++) { |
|
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|
1351 intptr_t* l0 = interpreter_frame_local_at(l); |
|
2e038ad0c1d0
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|
1352 values.describe(frame_no, l0, err_msg("local %d", l)); |
|
2e038ad0c1d0
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|
1353 } |
|
2e038ad0c1d0
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|
1354 } |
|
2e038ad0c1d0
7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
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|
1355 |
|
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|
1356 // Compute the actual expression stack size |
|
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|
1357 InterpreterOopMap mask; |
|
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|
1358 OopMapCache::compute_one_oop_map(m, bci, &mask); |
|
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|
1359 intptr_t* tos = NULL; |
|
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|
1360 // Report each stack element and mark as owned by this frame |
|
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|
1361 for (int e = 0; e < mask.expression_stack_size(); e++) { |
|
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|
1362 tos = MAX2(tos, interpreter_frame_expression_stack_at(e)); |
|
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|
1363 values.describe(frame_no, interpreter_frame_expression_stack_at(e), |
|
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|
1364 err_msg("stack %d", e)); |
|
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|
1365 } |
|
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|
1366 if (tos != NULL) { |
|
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|
1367 values.describe(-1, tos, err_msg("expression stack for #%d", frame_no), 1); |
|
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|
1368 } |
|
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|
1369 if (interpreter_frame_monitor_begin() != interpreter_frame_monitor_end()) { |
|
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|
1370 values.describe(frame_no, (intptr_t*)interpreter_frame_monitor_begin(), "monitors begin"); |
|
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|
1371 values.describe(frame_no, (intptr_t*)interpreter_frame_monitor_end(), "monitors end"); |
|
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|
1372 } |
|
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|
1373 } else if (is_entry_frame()) { |
|
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|
1374 // For now just label the frame |
|
4818
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changeset
|
1375 values.describe(-1, info_address, err_msg("#%d entry frame", frame_no), 2); |
|
3336
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|
1376 } else if (is_compiled_frame()) { |
|
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|
1377 // For now just label the frame |
|
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|
1378 nmethod* nm = cb()->as_nmethod_or_null(); |
|
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|
1379 values.describe(-1, info_address, |
|
3336
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|
1380 FormatBuffer<1024>("#%d nmethod " INTPTR_FORMAT " for method %s%s", frame_no, |
|
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|
1381 nm, nm->method()->name_and_sig_as_C_string(), |
|
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|
1382 (_deopt_state == is_deoptimized) ? |
|
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|
1383 " (deoptimized)" : |
|
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|
1384 ((_deopt_state == unknown) ? " (state unknown)" : "")), |
|
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|
1385 2); |
|
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|
1386 } else if (is_native_frame()) { |
|
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|
1387 // For now just label the frame |
|
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|
1388 nmethod* nm = cb()->as_nmethod_or_null(); |
|
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|
1389 values.describe(-1, info_address, |
|
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|
1390 FormatBuffer<1024>("#%d nmethod " INTPTR_FORMAT " for native method %s", frame_no, |
|
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|
1391 nm, nm->method()->name_and_sig_as_C_string()), 2); |
|
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|
1392 } else { |
|
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|
1393 // provide default info if not handled before |
|
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|
1394 char *info = (char *) "special frame"; |
|
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|
1395 if ((_cb != NULL) && |
|
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|
1396 (_cb->name() != NULL)) { |
|
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diff
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|
1397 info = (char *)_cb->name(); |
|
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diff
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|
1398 } |
|
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changeset
|
1399 values.describe(-1, info_address, err_msg("#%d <%s>", frame_no, info), 2); |
|
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|
1400 } |
|
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|
1401 |
|
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changeset
|
1402 // platform dependent additional data |
|
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|
1403 describe_pd(values, frame_no); |
|
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|
1404 } |
|
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|
1405 |
| 0 | 1406 #endif |
| 1407 | |
| 1408 | |
| 1409 //----------------------------------------------------------------------------------- | |
| 1410 // StackFrameStream implementation | |
| 1411 | |
| 1412 StackFrameStream::StackFrameStream(JavaThread *thread, bool update) : _reg_map(thread, update) { | |
| 1413 assert(thread->has_last_Java_frame(), "sanity check"); | |
| 1414 _fr = thread->last_frame(); | |
| 1415 _is_done = false; | |
| 1416 } | |
|
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|
1417 |
|
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1418 |
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1419 #ifndef PRODUCT |
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1420 |
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1421 void FrameValues::describe(int owner, intptr_t* location, const char* description, int priority) { |
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1422 FrameValue fv; |
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1423 fv.location = location; |
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1424 fv.owner = owner; |
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1425 fv.priority = priority; |
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1426 fv.description = NEW_RESOURCE_ARRAY(char, strlen(description) + 1); |
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1427 strcpy(fv.description, description); |
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1428 _values.append(fv); |
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1429 } |
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|
1430 |
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|
1431 |
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|
1432 #ifdef ASSERT |
|
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|
1433 void FrameValues::validate() { |
|
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1434 _values.sort(compare); |
|
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|
1435 bool error = false; |
|
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|
1436 FrameValue prev; |
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|
1437 prev.owner = -1; |
|
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|
1438 for (int i = _values.length() - 1; i >= 0; i--) { |
|
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|
1439 FrameValue fv = _values.at(i); |
|
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|
1440 if (fv.owner == -1) continue; |
|
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|
1441 if (prev.owner == -1) { |
|
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|
1442 prev = fv; |
|
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|
1443 continue; |
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|
1444 } |
|
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|
1445 if (prev.location == fv.location) { |
|
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|
1446 if (fv.owner != prev.owner) { |
|
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|
1447 tty->print_cr("overlapping storage"); |
|
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|
1448 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", prev.location, *prev.location, prev.description); |
|
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|
1449 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", fv.location, *fv.location, fv.description); |
|
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|
1450 error = true; |
|
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|
1451 } |
|
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|
1452 } else { |
|
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|
1453 prev = fv; |
|
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|
1454 } |
|
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|
1455 } |
|
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|
1456 assert(!error, "invalid layout"); |
|
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|
1457 } |
|
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|
1458 #endif // ASSERT |
|
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|
1459 |
|
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|
1460 void FrameValues::print(JavaThread* thread) { |
|
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|
1461 _values.sort(compare); |
|
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changeset
|
1462 |
|
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|
1463 // Sometimes values like the fp can be invalid values if the |
|
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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changeset
|
1464 // register map wasn't updated during the walk. Trim out values |
|
3d2ab563047a
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changeset
|
1465 // that aren't actually in the stack of the thread. |
|
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changeset
|
1466 int min_index = 0; |
|
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changeset
|
1467 int max_index = _values.length() - 1; |
|
3d2ab563047a
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changeset
|
1468 intptr_t* v0 = _values.at(min_index).location; |
|
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changeset
|
1469 intptr_t* v1 = _values.at(max_index).location; |
|
4042
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changeset
|
1470 |
|
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|
1471 if (thread == Thread::current()) { |
|
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changeset
|
1472 while (!thread->is_in_stack((address)v0)) { |
|
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changeset
|
1473 v0 = _values.at(++min_index).location; |
|
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changeset
|
1474 } |
|
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changeset
|
1475 while (!thread->is_in_stack((address)v1)) { |
|
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changeset
|
1476 v1 = _values.at(--max_index).location; |
|
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|
1477 } |
|
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changeset
|
1478 } else { |
|
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changeset
|
1479 while (!thread->on_local_stack((address)v0)) { |
|
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changeset
|
1480 v0 = _values.at(++min_index).location; |
|
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|
1481 } |
|
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changeset
|
1482 while (!thread->on_local_stack((address)v1)) { |
|
b20d64f83668
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changeset
|
1483 v1 = _values.at(--max_index).location; |
|
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changeset
|
1484 } |
|
3369
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changeset
|
1485 } |
|
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|
1486 intptr_t* min = MIN2(v0, v1); |
|
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changeset
|
1487 intptr_t* max = MAX2(v0, v1); |
|
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changeset
|
1488 intptr_t* cur = max; |
|
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changeset
|
1489 intptr_t* last = NULL; |
|
3369
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changeset
|
1490 for (int i = max_index; i >= min_index; i--) { |
|
3336
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changeset
|
1491 FrameValue fv = _values.at(i); |
|
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changeset
|
1492 while (cur > fv.location) { |
|
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changeset
|
1493 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT, cur, *cur); |
|
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changeset
|
1494 cur--; |
|
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changeset
|
1495 } |
|
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changeset
|
1496 if (last == fv.location) { |
|
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changeset
|
1497 const char* spacer = " " LP64_ONLY(" "); |
|
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changeset
|
1498 tty->print_cr(" %s %s %s", spacer, spacer, fv.description); |
|
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changeset
|
1499 } else { |
|
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changeset
|
1500 tty->print_cr(" " INTPTR_FORMAT ": " INTPTR_FORMAT " %s", fv.location, *fv.location, fv.description); |
|
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changeset
|
1501 last = fv.location; |
|
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changeset
|
1502 cur--; |
|
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changeset
|
1503 } |
|
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changeset
|
1504 } |
|
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changeset
|
1505 } |
|
2e038ad0c1d0
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parents:
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diff
changeset
|
1506 |
|
4824
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7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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parents:
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diff
changeset
|
1507 #endif // ndef PRODUCT |