Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 52b4284cb496 327e7269f90d |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2014, 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 // no precompiled headers |
| 26 #include "classfile/vmSymbols.hpp" | |
| 27 #include "gc_interface/collectedHeap.hpp" | |
| 28 #include "interpreter/bytecodeHistogram.hpp" | |
| 29 #include "interpreter/bytecodeInterpreter.hpp" | |
| 30 #include "interpreter/bytecodeInterpreter.inline.hpp" | |
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31 #include "interpreter/bytecodeInterpreterProfiling.hpp" |
| 1972 | 32 #include "interpreter/interpreter.hpp" |
| 33 #include "interpreter/interpreterRuntime.hpp" | |
| 34 #include "memory/resourceArea.hpp" | |
| 10233 | 35 #include "oops/methodCounters.hpp" |
| 1972 | 36 #include "oops/objArrayKlass.hpp" |
| 37 #include "oops/oop.inline.hpp" | |
| 38 #include "prims/jvmtiExport.hpp" | |
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39 #include "prims/jvmtiThreadState.hpp" |
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40 #include "runtime/biasedLocking.hpp" |
| 1972 | 41 #include "runtime/frame.inline.hpp" |
| 42 #include "runtime/handles.inline.hpp" | |
| 43 #include "runtime/interfaceSupport.hpp" | |
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44 #include "runtime/orderAccess.inline.hpp" |
| 1972 | 45 #include "runtime/sharedRuntime.hpp" |
| 46 #include "runtime/threadCritical.hpp" | |
| 47 #include "utilities/exceptions.hpp" | |
| 0 | 48 |
| 49 // no precompiled headers | |
| 50 #ifdef CC_INTERP | |
| 51 | |
| 52 /* | |
| 53 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
| 54 * rather -then a switch statement. This improves performance because it | |
| 55 * gives us the oportunity to have the instructions that calculate the | |
| 56 * next opcode to jump to be intermixed with the rest of the instructions | |
| 57 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
| 58 */ | |
| 59 #undef USELABELS | |
| 60 #ifdef __GNUC__ | |
| 61 /* | |
| 62 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
| 63 don't use the computed goto approach. | |
| 64 */ | |
| 65 #ifndef ASSERT | |
| 66 #define USELABELS | |
| 67 #endif | |
| 68 #endif | |
| 69 | |
| 70 #undef CASE | |
| 71 #ifdef USELABELS | |
| 72 #define CASE(opcode) opc ## opcode | |
| 73 #define DEFAULT opc_default | |
| 74 #else | |
| 75 #define CASE(opcode) case Bytecodes:: opcode | |
| 76 #define DEFAULT default | |
| 77 #endif | |
| 78 | |
| 79 /* | |
| 80 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
| 81 * opcode before going back to the top of the while loop, rather then having | |
| 82 * the top of the while loop handle it. This provides a better opportunity | |
| 83 * for instruction scheduling. Some compilers just do this prefetch | |
| 84 * automatically. Some actually end up with worse performance if you | |
| 85 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
| 86 */ | |
| 87 #undef PREFETCH_OPCCODE | |
| 88 #define PREFETCH_OPCCODE | |
| 89 | |
| 90 /* | |
| 91 Interpreter safepoint: it is expected that the interpreter will have no live | |
| 92 handles of its own creation live at an interpreter safepoint. Therefore we | |
| 93 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
| 94 since the JavaCalls::call_helper invocation that initiated the chain. | |
| 95 There really shouldn't be any handles remaining to trash but this is cheap | |
| 96 in relation to a safepoint. | |
| 97 */ | |
| 98 #define SAFEPOINT \ | |
| 99 if ( SafepointSynchronize::is_synchronizing()) { \ | |
| 100 { \ | |
| 101 /* zap freed handles rather than GC'ing them */ \ | |
| 102 HandleMarkCleaner __hmc(THREAD); \ | |
| 103 } \ | |
| 104 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
| 105 } | |
| 106 | |
| 107 /* | |
| 108 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
| 109 * the interpreter loop. Should really be a CALL_VM but there | |
| 110 * is no entry point to do the transition to vm so we just | |
| 111 * do it by hand here. | |
| 112 */ | |
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113 #define VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
| 0 | 114 DECACHE_STATE(); \ |
| 115 SET_LAST_JAVA_FRAME(); \ | |
| 116 { \ | |
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117 InterpreterRuntime::note_a_trap(THREAD, istate->method(), BCI()); \ |
| 0 | 118 ThreadInVMfromJava trans(THREAD); \ |
| 119 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
| 120 } \ | |
| 121 RESET_LAST_JAVA_FRAME(); \ | |
| 122 CACHE_STATE(); | |
| 123 | |
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124 // Normal throw of a java error. |
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125 #define VM_JAVA_ERROR(name, msg, note_a_trap) \ |
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126 VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
| 0 | 127 goto handle_exception; |
| 128 | |
| 129 #ifdef PRODUCT | |
| 130 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
| 131 #else | |
| 132 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
| 133 { \ | |
| 134 BytecodeCounter::_counter_value++; \ | |
| 135 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
| 136 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
| 137 if (TraceBytecodes) { \ | |
| 138 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
| 139 topOfStack[Interpreter::expr_index_at(1)], \ | |
| 140 topOfStack[Interpreter::expr_index_at(2)]), \ | |
| 141 handle_exception); \ | |
| 142 } \ | |
| 143 } | |
| 144 #endif | |
| 145 | |
| 146 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
| 147 #ifdef VM_JVMTI | |
| 148 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
| 149 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
| 150 breakpoint opcode to get inserted at the current PC to allow the | |
| 151 debugger to coalesce single-step events. | |
| 152 | |
| 153 As a result if we call at_single_stepping_point() we refetch opcode | |
| 154 to get the current opcode. This will override any other prefetching | |
| 155 that might have occurred. | |
| 156 */ | |
| 157 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
| 158 { \ | |
| 159 if (_jvmti_interp_events) { \ | |
| 160 if (JvmtiExport::should_post_single_step()) { \ | |
| 161 DECACHE_STATE(); \ | |
| 162 SET_LAST_JAVA_FRAME(); \ | |
| 163 ThreadInVMfromJava trans(THREAD); \ | |
| 164 JvmtiExport::at_single_stepping_point(THREAD, \ | |
| 165 istate->method(), \ | |
| 166 pc); \ | |
| 167 RESET_LAST_JAVA_FRAME(); \ | |
| 168 CACHE_STATE(); \ | |
| 169 if (THREAD->pop_frame_pending() && \ | |
| 170 !THREAD->pop_frame_in_process()) { \ | |
| 171 goto handle_Pop_Frame; \ | |
| 172 } \ | |
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173 if (THREAD->jvmti_thread_state() && \ |
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174 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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175 goto handle_Early_Return; \ |
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176 } \ |
| 0 | 177 opcode = *pc; \ |
| 178 } \ | |
| 179 } \ | |
| 180 } | |
| 181 #else | |
| 182 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
| 183 #endif | |
| 184 | |
| 185 /* | |
| 186 * CONTINUE - Macro for executing the next opcode. | |
| 187 */ | |
| 188 #undef CONTINUE | |
| 189 #ifdef USELABELS | |
| 190 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
| 191 // initialization (which is is the initialization of the table pointer...) | |
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192 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
| 0 | 193 #define CONTINUE { \ |
| 194 opcode = *pc; \ | |
| 195 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 196 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 197 DISPATCH(opcode); \ | |
| 198 } | |
| 199 #else | |
| 200 #ifdef PREFETCH_OPCCODE | |
| 201 #define CONTINUE { \ | |
| 202 opcode = *pc; \ | |
| 203 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 204 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 205 continue; \ | |
| 206 } | |
| 207 #else | |
| 208 #define CONTINUE { \ | |
| 209 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 210 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 211 continue; \ | |
| 212 } | |
| 213 #endif | |
| 214 #endif | |
| 215 | |
| 216 | |
| 217 #define UPDATE_PC(opsize) {pc += opsize; } | |
| 218 /* | |
| 219 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
| 220 */ | |
| 221 #undef UPDATE_PC_AND_TOS | |
| 222 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
| 223 {pc += opsize; MORE_STACK(stack); } | |
| 224 | |
| 225 /* | |
| 226 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
| 227 * and executing the next opcode. It's somewhat similar to the combination | |
| 228 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
| 229 */ | |
| 230 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
| 231 #ifdef USELABELS | |
| 232 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 233 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 234 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 235 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 236 DISPATCH(opcode); \ | |
| 237 } | |
| 238 | |
| 239 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 240 pc += opsize; opcode = *pc; \ | |
| 241 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 242 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 243 DISPATCH(opcode); \ | |
| 244 } | |
| 245 #else | |
| 246 #ifdef PREFETCH_OPCCODE | |
| 247 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 248 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 249 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 250 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 251 goto do_continue; \ | |
| 252 } | |
| 253 | |
| 254 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 255 pc += opsize; opcode = *pc; \ | |
| 256 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 257 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 258 goto do_continue; \ | |
| 259 } | |
| 260 #else | |
| 261 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 262 pc += opsize; MORE_STACK(stack); \ | |
| 263 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 264 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 265 goto do_continue; \ | |
| 266 } | |
| 267 | |
| 268 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 269 pc += opsize; \ | |
| 270 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 271 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 272 goto do_continue; \ | |
| 273 } | |
| 274 #endif /* PREFETCH_OPCCODE */ | |
| 275 #endif /* USELABELS */ | |
| 276 | |
| 277 // About to call a new method, update the save the adjusted pc and return to frame manager | |
| 278 #define UPDATE_PC_AND_RETURN(opsize) \ | |
| 279 DECACHE_TOS(); \ | |
| 280 istate->set_bcp(pc+opsize); \ | |
| 281 return; | |
| 282 | |
| 283 | |
| 284 #define METHOD istate->method() | |
| 10233 | 285 #define GET_METHOD_COUNTERS(res) \ |
| 286 res = METHOD->method_counters(); \ | |
| 287 if (res == NULL) { \ | |
| 288 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
| 289 } | |
| 290 | |
| 0 | 291 #define OSR_REQUEST(res, branch_pc) \ |
| 292 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
| 293 /* | |
| 294 * For those opcodes that need to have a GC point on a backwards branch | |
| 295 */ | |
| 296 | |
| 297 // Backedge counting is kind of strange. The asm interpreter will increment | |
| 298 // the backedge counter as a separate counter but it does it's comparisons | |
| 299 // to the sum (scaled) of invocation counter and backedge count to make | |
| 300 // a decision. Seems kind of odd to sum them together like that | |
| 301 | |
| 302 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
| 303 | |
| 304 | |
| 305 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
| 306 if ((skip) <= 0) { \ | |
| 10233 | 307 MethodCounters* mcs; \ |
| 308 GET_METHOD_COUNTERS(mcs); \ | |
| 1078 | 309 if (UseLoopCounter) { \ |
| 0 | 310 bool do_OSR = UseOnStackReplacement; \ |
| 10233 | 311 mcs->backedge_counter()->increment(); \ |
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312 if (ProfileInterpreter) { \ |
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313 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); \ |
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314 /* Check for overflow against MDO count. */ \ |
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315 do_OSR = do_OSR \ |
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316 && (mdo_last_branch_taken_count >= (uint)InvocationCounter::InterpreterBackwardBranchLimit)\ |
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317 /* When ProfileInterpreter is on, the backedge_count comes */ \ |
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318 /* from the methodDataOop, which value does not get reset on */ \ |
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319 /* the call to frequency_counter_overflow(). To avoid */ \ |
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320 /* excessive calls to the overflow routine while the method is */ \ |
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321 /* being compiled, add a second test to make sure the overflow */ \ |
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322 /* function is called only once every overflow_frequency. */ \ |
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323 && (!(mdo_last_branch_taken_count & 1023)); \ |
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324 } else { \ |
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325 /* check for overflow of backedge counter */ \ |
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326 do_OSR = do_OSR \ |
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327 && mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter()); \ |
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328 } \ |
| 0 | 329 if (do_OSR) { \ |
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330 nmethod* osr_nmethod; \ |
| 0 | 331 OSR_REQUEST(osr_nmethod, branch_pc); \ |
| 332 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
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333 intptr_t* buf; \ |
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334 /* Call OSR migration with last java frame only, no checks. */ \ |
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335 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
| 0 | 336 istate->set_msg(do_osr); \ |
| 337 istate->set_osr_buf((address)buf); \ | |
| 338 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
| 339 return; \ | |
| 340 } \ | |
| 341 } \ | |
| 342 } /* UseCompiler ... */ \ | |
| 343 SAFEPOINT; \ | |
| 344 } | |
| 345 | |
| 346 /* | |
| 347 * For those opcodes that need to have a GC point on a backwards branch | |
| 348 */ | |
| 349 | |
| 350 /* | |
| 351 * Macros for caching and flushing the interpreter state. Some local | |
| 352 * variables need to be flushed out to the frame before we do certain | |
| 353 * things (like pushing frames or becomming gc safe) and some need to | |
| 354 * be recached later (like after popping a frame). We could use one | |
| 355 * macro to cache or decache everything, but this would be less then | |
| 356 * optimal because we don't always need to cache or decache everything | |
| 357 * because some things we know are already cached or decached. | |
| 358 */ | |
| 359 #undef DECACHE_TOS | |
| 360 #undef CACHE_TOS | |
| 361 #undef CACHE_PREV_TOS | |
| 362 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
| 363 | |
| 364 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
| 365 | |
| 366 #undef DECACHE_PC | |
| 367 #undef CACHE_PC | |
| 368 #define DECACHE_PC() istate->set_bcp(pc); | |
| 369 #define CACHE_PC() pc = istate->bcp(); | |
| 370 #define CACHE_CP() cp = istate->constants(); | |
| 371 #define CACHE_LOCALS() locals = istate->locals(); | |
| 372 #undef CACHE_FRAME | |
| 373 #define CACHE_FRAME() | |
| 374 | |
|
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375 // BCI() returns the current bytecode-index. |
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376 #undef BCI |
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377 #define BCI() ((int)(intptr_t)(pc - (intptr_t)istate->method()->code_base())) |
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378 |
| 0 | 379 /* |
| 380 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
| 381 * passed is a null ref. | |
| 382 * On some architectures/platforms it should be possible to do this implicitly | |
| 383 */ | |
| 384 #undef CHECK_NULL | |
| 14462 | 385 #define CHECK_NULL(obj_) \ |
| 386 if ((obj_) == NULL) { \ | |
| 387 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), NULL, note_nullCheck_trap); \ | |
| 388 } \ | |
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389 VERIFY_OOP(obj_) |
| 0 | 390 |
| 391 #define VMdoubleConstZero() 0.0 | |
| 392 #define VMdoubleConstOne() 1.0 | |
| 393 #define VMlongConstZero() (max_jlong-max_jlong) | |
| 394 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
| 395 | |
| 396 /* | |
| 397 * Alignment | |
| 398 */ | |
| 399 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
| 400 | |
| 401 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
| 402 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
| 403 | |
| 404 // Reload interpreter state after calling the VM or a possible GC | |
| 405 #define CACHE_STATE() \ | |
| 406 CACHE_TOS(); \ | |
| 407 CACHE_PC(); \ | |
| 408 CACHE_CP(); \ | |
| 409 CACHE_LOCALS(); | |
| 410 | |
|
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411 // Call the VM with last java frame only. |
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412 #define CALL_VM_NAKED_LJF(func) \ |
|
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413 DECACHE_STATE(); \ |
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414 SET_LAST_JAVA_FRAME(); \ |
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415 func; \ |
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416 RESET_LAST_JAVA_FRAME(); \ |
|
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417 CACHE_STATE(); |
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418 |
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419 // Call the VM. Don't check for pending exceptions. |
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420 #define CALL_VM_NOCHECK(func) \ |
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421 CALL_VM_NAKED_LJF(func) \ |
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422 if (THREAD->pop_frame_pending() && \ |
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423 !THREAD->pop_frame_in_process()) { \ |
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424 goto handle_Pop_Frame; \ |
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425 } \ |
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426 if (THREAD->jvmti_thread_state() && \ |
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427 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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428 goto handle_Early_Return; \ |
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429 } |
| 0 | 430 |
| 431 // Call the VM and check for pending exceptions | |
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432 #define CALL_VM(func, label) { \ |
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433 CALL_VM_NOCHECK(func); \ |
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434 if (THREAD->has_pending_exception()) goto label; \ |
| 0 | 435 } |
| 436 | |
| 437 /* | |
| 438 * BytecodeInterpreter::run(interpreterState istate) | |
| 439 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
| 440 * | |
| 441 * The real deal. This is where byte codes actually get interpreted. | |
| 442 * Basically it's a big while loop that iterates until we return from | |
| 443 * the method passed in. | |
| 444 * | |
| 445 * The runWithChecks is used if JVMTI is enabled. | |
| 446 * | |
| 447 */ | |
| 448 #if defined(VM_JVMTI) | |
| 449 void | |
| 450 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
| 451 #else | |
| 452 void | |
| 453 BytecodeInterpreter::run(interpreterState istate) { | |
| 454 #endif | |
| 455 | |
| 456 // In order to simplify some tests based on switches set at runtime | |
| 457 // we invoke the interpreter a single time after switches are enabled | |
| 458 // and set simpler to to test variables rather than method calls or complex | |
| 459 // boolean expressions. | |
| 460 | |
| 461 static int initialized = 0; | |
| 462 static int checkit = 0; | |
| 463 static intptr_t* c_addr = NULL; | |
| 464 static intptr_t c_value; | |
| 465 | |
| 466 if (checkit && *c_addr != c_value) { | |
| 467 os::breakpoint(); | |
| 468 } | |
| 469 #ifdef VM_JVMTI | |
| 470 static bool _jvmti_interp_events = 0; | |
| 471 #endif | |
| 472 | |
| 473 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
| 474 | |
| 475 #ifdef ASSERT | |
| 476 if (istate->_msg != initialize) { | |
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477 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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478 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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479 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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480 // for the old JSR292 implementation. |
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481 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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482 // methodOopDesc::extra_stack_entries() because it is computed in |
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483 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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484 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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485 // account for extra_stack_entries() anymore because at the time when it is called |
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486 // EnableInvokeDynamic was already set to false. |
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487 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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488 // switched off because of the wrong classes. |
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489 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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490 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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491 } else { |
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492 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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493 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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494 + 1), "bad stack limit"); |
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495 } |
| 1729 | 496 #ifndef SHARK |
| 497 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
| 498 #endif // !SHARK | |
| 0 | 499 } |
| 500 // Verify linkages. | |
| 501 interpreterState l = istate; | |
| 502 do { | |
| 503 assert(l == l->_self_link, "bad link"); | |
| 504 l = l->_prev_link; | |
| 505 } while (l != NULL); | |
| 506 // Screwups with stack management usually cause us to overwrite istate | |
| 507 // save a copy so we can verify it. | |
| 508 interpreterState orig = istate; | |
| 509 #endif | |
| 510 | |
| 511 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
| 512 register address pc = istate->bcp(); | |
| 513 register jubyte opcode; | |
| 514 register intptr_t* locals = istate->locals(); | |
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515 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
| 0 | 516 #ifdef LOTS_OF_REGS |
| 517 register JavaThread* THREAD = istate->thread(); | |
| 518 #else | |
| 519 #undef THREAD | |
| 520 #define THREAD istate->thread() | |
| 521 #endif | |
| 522 | |
| 523 #ifdef USELABELS | |
| 524 const static void* const opclabels_data[256] = { | |
| 525 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
| 526 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
| 527 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
| 528 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
| 529 | |
| 530 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
| 531 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
| 532 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
| 533 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
| 534 | |
| 535 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
| 536 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
| 537 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
| 538 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
| 539 | |
| 540 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
| 541 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
| 542 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
| 543 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
| 544 | |
| 545 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
| 546 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
| 547 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
| 548 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
| 549 | |
| 550 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
| 551 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
| 552 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
| 553 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
| 554 | |
| 555 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
| 556 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
| 557 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
| 558 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
| 559 | |
| 560 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
| 561 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
| 562 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
| 563 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
| 564 | |
| 565 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
| 566 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
| 567 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
| 568 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
| 569 | |
| 570 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
| 571 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
| 572 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
| 573 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
| 574 | |
| 575 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
| 576 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
| 577 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
| 578 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
| 579 | |
| 580 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
| 581 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
| 2480 | 582 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
| 0 | 583 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
| 584 | |
| 585 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
| 586 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
| 123 | 587 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
| 588 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 589 | |
| 590 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 0 | 591 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 592 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 593 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 594 | |
| 595 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 2480 | 596 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
| 6926 | 597 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
| 0 | 598 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 599 | |
| 600 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 601 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 602 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 603 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
| 604 }; | |
| 605 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
| 606 #endif /* USELABELS */ | |
| 607 | |
| 608 #ifdef ASSERT | |
| 609 // this will trigger a VERIFY_OOP on entry | |
| 610 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
| 611 oop rcvr = LOCALS_OBJECT(0); | |
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612 VERIFY_OOP(rcvr); |
| 0 | 613 } |
| 614 #endif | |
| 615 // #define HACK | |
| 616 #ifdef HACK | |
| 617 bool interesting = false; | |
| 618 #endif // HACK | |
| 619 | |
| 620 /* QQQ this should be a stack method so we don't know actual direction */ | |
|
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621 guarantee(istate->msg() == initialize || |
| 0 | 622 topOfStack >= istate->stack_limit() && |
| 623 topOfStack < istate->stack_base(), | |
| 624 "Stack top out of range"); | |
| 625 | |
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626 #ifdef CC_INTERP_PROFILE |
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627 // MethodData's last branch taken count. |
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628 uint mdo_last_branch_taken_count = 0; |
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629 #else |
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630 const uint mdo_last_branch_taken_count = 0; |
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631 #endif |
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632 |
| 0 | 633 switch (istate->msg()) { |
| 634 case initialize: { | |
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635 if (initialized++) ShouldNotReachHere(); // Only one initialize call. |
| 0 | 636 _compiling = (UseCompiler || CountCompiledCalls); |
| 637 #ifdef VM_JVMTI | |
| 638 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
| 639 #endif | |
| 640 return; | |
| 641 } | |
| 642 break; | |
| 643 case method_entry: { | |
| 644 THREAD->set_do_not_unlock(); | |
| 645 // count invocations | |
| 646 assert(initialized, "Interpreter not initialized"); | |
| 647 if (_compiling) { | |
| 10233 | 648 MethodCounters* mcs; |
| 649 GET_METHOD_COUNTERS(mcs); | |
| 0 | 650 if (ProfileInterpreter) { |
| 10233 | 651 METHOD->increment_interpreter_invocation_count(THREAD); |
| 0 | 652 } |
| 10233 | 653 mcs->invocation_counter()->increment(); |
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654 if (mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter())) { |
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655 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
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656 // We no longer retry on a counter overflow. |
| 0 | 657 } |
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658 // Get or create profile data. Check for pending (async) exceptions. |
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659 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
| 0 | 660 SAFEPOINT; |
| 661 } | |
| 662 | |
| 663 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 664 // initialize | |
| 665 os::breakpoint(); | |
| 666 } | |
| 667 | |
| 668 #ifdef HACK | |
| 669 { | |
| 670 ResourceMark rm; | |
| 671 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 672 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 673 tty->print_cr("entering: depth %d bci: %d", | |
| 674 (istate->_stack_base - istate->_stack), | |
| 675 istate->_bcp - istate->_method->code_base()); | |
| 676 interesting = true; | |
| 677 } | |
| 678 } | |
| 679 #endif // HACK | |
| 680 | |
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681 // Lock method if synchronized. |
| 0 | 682 if (METHOD->is_synchronized()) { |
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683 // oop rcvr = locals[0].j.r; |
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684 oop rcvr; |
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685 if (METHOD->is_static()) { |
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686 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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687 } else { |
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688 rcvr = LOCALS_OBJECT(0); |
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689 VERIFY_OOP(rcvr); |
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690 } |
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691 // The initial monitor is ours for the taking. |
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692 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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693 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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694 mon->set_obj(rcvr); |
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695 bool success = false; |
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696 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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697 markOop mark = rcvr->mark(); |
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698 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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699 // Implies UseBiasedLocking. |
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700 if (mark->has_bias_pattern()) { |
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701 uintptr_t thread_ident; |
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702 uintptr_t anticipated_bias_locking_value; |
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703 thread_ident = (uintptr_t)istate->thread(); |
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704 anticipated_bias_locking_value = |
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705 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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706 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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707 |
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708 if (anticipated_bias_locking_value == 0) { |
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709 // Already biased towards this thread, nothing to do. |
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710 if (PrintBiasedLockingStatistics) { |
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711 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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712 } |
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713 success = true; |
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714 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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715 // Try to revoke bias. |
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716 markOop header = rcvr->klass()->prototype_header(); |
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717 if (hash != markOopDesc::no_hash) { |
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718 header = header->copy_set_hash(hash); |
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719 } |
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720 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
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721 if (PrintBiasedLockingStatistics) |
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722 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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723 } |
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724 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
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725 // Try to rebias. |
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726 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
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727 if (hash != markOopDesc::no_hash) { |
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728 new_header = new_header->copy_set_hash(hash); |
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729 } |
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730 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
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731 if (PrintBiasedLockingStatistics) { |
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732 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
| 0 | 733 } |
| 734 } else { | |
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735 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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736 } |
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737 success = true; |
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738 } else { |
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739 // Try to bias towards thread in case object is anonymously biased. |
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740 markOop header = (markOop) ((uintptr_t) mark & |
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741 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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742 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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743 if (hash != markOopDesc::no_hash) { |
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744 header = header->copy_set_hash(hash); |
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745 } |
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746 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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747 // Debugging hint. |
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748 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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749 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
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750 if (PrintBiasedLockingStatistics) { |
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751 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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752 } |
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753 } else { |
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754 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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755 } |
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756 success = true; |
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757 } |
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758 } |
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759 |
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760 // Traditional lightweight locking. |
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761 if (!success) { |
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762 markOop displaced = rcvr->mark()->set_unlocked(); |
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763 mon->lock()->set_displaced_header(displaced); |
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764 bool call_vm = UseHeavyMonitors; |
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765 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
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766 // Is it simple recursive case? |
|
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|
767 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
|
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768 mon->lock()->set_displaced_header(NULL); |
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769 } else { |
|
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770 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
| 0 | 771 } |
| 772 } | |
|
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773 } |
| 0 | 774 } |
| 775 THREAD->clr_do_not_unlock(); | |
| 776 | |
| 777 // Notify jvmti | |
| 778 #ifdef VM_JVMTI | |
| 779 if (_jvmti_interp_events) { | |
| 780 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 781 // entry/exit events are sent for that thread to track stack depth. | |
| 782 if (THREAD->is_interp_only_mode()) { | |
| 783 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
| 784 handle_exception); | |
| 785 } | |
| 786 } | |
| 787 #endif /* VM_JVMTI */ | |
| 788 | |
| 789 goto run; | |
| 790 } | |
| 791 | |
| 792 case popping_frame: { | |
| 793 // returned from a java call to pop the frame, restart the call | |
| 794 // clear the message so we don't confuse ourselves later | |
| 795 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
| 796 istate->set_msg(no_request); | |
|
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797 if (_compiling) { |
|
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798 // Set MDX back to the ProfileData of the invoke bytecode that will be |
|
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799 // restarted. |
|
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800 SET_MDX(NULL); |
|
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801 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
|
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802 } |
| 0 | 803 THREAD->clr_pop_frame_in_process(); |
| 804 goto run; | |
| 805 } | |
| 806 | |
| 807 case method_resume: { | |
| 808 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 809 // resume | |
| 810 os::breakpoint(); | |
| 811 } | |
| 812 #ifdef HACK | |
| 813 { | |
| 814 ResourceMark rm; | |
| 815 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 816 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 817 tty->print_cr("resume: depth %d bci: %d", | |
| 818 (istate->_stack_base - istate->_stack) , | |
| 819 istate->_bcp - istate->_method->code_base()); | |
| 820 interesting = true; | |
| 821 } | |
| 822 } | |
| 823 #endif // HACK | |
| 824 // returned from a java call, continue executing. | |
| 825 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
| 826 goto handle_Pop_Frame; | |
| 827 } | |
|
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828 if (THREAD->jvmti_thread_state() && |
|
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|
829 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
|
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830 goto handle_Early_Return; |
|
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|
831 } |
| 0 | 832 |
| 833 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 834 // Update the pc by the saved amount of the invoke bytecode size | |
| 835 UPDATE_PC(istate->bcp_advance()); | |
|
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836 |
|
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837 if (_compiling) { |
|
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838 // Get or create profile data. Check for pending (async) exceptions. |
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839 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
|
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840 } |
| 0 | 841 goto run; |
| 842 } | |
| 843 | |
| 844 case deopt_resume2: { | |
| 845 // Returned from an opcode that will reexecute. Deopt was | |
| 846 // a result of a PopFrame request. | |
| 847 // | |
|
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848 |
|
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849 if (_compiling) { |
|
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850 // Get or create profile data. Check for pending (async) exceptions. |
|
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851 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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852 } |
| 0 | 853 goto run; |
| 854 } | |
| 855 | |
| 856 case deopt_resume: { | |
| 857 // Returned from an opcode that has completed. The stack has | |
| 858 // the result all we need to do is skip across the bytecode | |
| 859 // and continue (assuming there is no exception pending) | |
| 860 // | |
| 861 // compute continuation length | |
| 862 // | |
| 863 // Note: it is possible to deopt at a return_register_finalizer opcode | |
| 864 // because this requires entering the vm to do the registering. While the | |
| 865 // opcode is complete we can't advance because there are no more opcodes | |
| 866 // much like trying to deopt at a poll return. In that has we simply | |
| 867 // get out of here | |
| 868 // | |
| 2142 | 869 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
| 0 | 870 // this will do the right thing even if an exception is pending. |
| 871 goto handle_return; | |
| 872 } | |
| 2142 | 873 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
| 0 | 874 if (THREAD->has_pending_exception()) goto handle_exception; |
|
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875 |
|
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|
876 if (_compiling) { |
|
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877 // Get or create profile data. Check for pending (async) exceptions. |
|
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878 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
|
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879 } |
| 0 | 880 goto run; |
| 881 } | |
| 882 case got_monitors: { | |
| 883 // continue locking now that we have a monitor to use | |
| 884 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
| 885 oop lockee = STACK_OBJECT(-1); | |
|
1681
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|
886 VERIFY_OOP(lockee); |
| 0 | 887 // derefing's lockee ought to provoke implicit null check |
| 888 // find a free monitor | |
| 889 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
| 890 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
| 891 entry->set_obj(lockee); | |
|
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|
892 bool success = false; |
|
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|
893 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
|
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changeset
|
894 |
|
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|
895 markOop mark = lockee->mark(); |
|
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|
896 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
|
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|
897 // implies UseBiasedLocking |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
898 if (mark->has_bias_pattern()) { |
|
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|
899 uintptr_t thread_ident; |
|
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|
900 uintptr_t anticipated_bias_locking_value; |
|
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|
901 thread_ident = (uintptr_t)istate->thread(); |
|
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|
902 anticipated_bias_locking_value = |
|
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|
903 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
904 ~((uintptr_t) markOopDesc::age_mask_in_place); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
905 |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
906 if (anticipated_bias_locking_value == 0) { |
|
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|
907 // already biased towards this thread, nothing to do |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
908 if (PrintBiasedLockingStatistics) { |
|
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|
909 (* BiasedLocking::biased_lock_entry_count_addr())++; |
|
48d3d0eb193b
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|
910 } |
|
48d3d0eb193b
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changeset
|
911 success = true; |
|
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|
912 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
|
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|
913 // try revoke bias |
|
48d3d0eb193b
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changeset
|
914 markOop header = lockee->klass()->prototype_header(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
915 if (hash != markOopDesc::no_hash) { |
|
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changeset
|
916 header = header->copy_set_hash(hash); |
|
48d3d0eb193b
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diff
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|
917 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
918 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
919 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
920 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
921 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
922 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
923 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
924 // try rebias |
|
48d3d0eb193b
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changeset
|
925 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
926 if (hash != markOopDesc::no_hash) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
927 new_header = new_header->copy_set_hash(hash); |
|
48d3d0eb193b
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diff
changeset
|
928 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
929 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
930 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
931 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
932 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
933 } else { |
|
48d3d0eb193b
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diff
changeset
|
934 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
|
48d3d0eb193b
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|
935 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
936 success = true; |
| 0 | 937 } else { |
|
14395
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changeset
|
938 // try to bias towards thread in case object is anonymously biased |
|
48d3d0eb193b
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diff
changeset
|
939 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
940 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
|
48d3d0eb193b
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|
941 if (hash != markOopDesc::no_hash) { |
|
48d3d0eb193b
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diff
changeset
|
942 header = header->copy_set_hash(hash); |
|
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diff
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|
943 } |
|
48d3d0eb193b
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diff
changeset
|
944 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
|
48d3d0eb193b
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diff
changeset
|
945 // debugging hint |
|
48d3d0eb193b
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diff
changeset
|
946 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
947 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
948 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
949 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
950 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
951 } else { |
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952 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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953 } |
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954 success = true; |
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955 } |
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956 } |
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957 |
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958 // traditional lightweight locking |
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959 if (!success) { |
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960 markOop displaced = lockee->mark()->set_unlocked(); |
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961 entry->lock()->set_displaced_header(displaced); |
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962 bool call_vm = UseHeavyMonitors; |
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963 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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964 // Is it simple recursive case? |
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965 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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966 entry->lock()->set_displaced_header(NULL); |
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967 } else { |
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968 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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969 } |
| 0 | 970 } |
| 971 } | |
| 972 UPDATE_PC_AND_TOS(1, -1); | |
| 973 goto run; | |
| 974 } | |
| 975 default: { | |
| 976 fatal("Unexpected message from frame manager"); | |
| 977 } | |
| 978 } | |
| 979 | |
| 980 run: | |
| 981 | |
| 982 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
| 983 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 984 #ifdef PREFETCH_OPCCODE | |
| 985 opcode = *pc; /* prefetch first opcode */ | |
| 986 #endif | |
| 987 | |
| 988 #ifndef USELABELS | |
| 989 while (1) | |
| 990 #endif | |
| 991 { | |
| 992 #ifndef PREFETCH_OPCCODE | |
| 993 opcode = *pc; | |
| 994 #endif | |
| 995 // Seems like this happens twice per opcode. At worst this is only | |
| 996 // need at entry to the loop. | |
| 997 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 998 /* Using this labels avoids double breakpoints when quickening and | |
| 999 * when returing from transition frames. | |
| 1000 */ | |
| 1001 opcode_switch: | |
| 1002 assert(istate == orig, "Corrupted istate"); | |
| 1003 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
| 1004 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
| 1005 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
| 1006 | |
| 1007 #ifdef USELABELS | |
| 1008 DISPATCH(opcode); | |
| 1009 #else | |
| 1010 switch (opcode) | |
| 1011 #endif | |
| 1012 { | |
| 1013 CASE(_nop): | |
| 1014 UPDATE_PC_AND_CONTINUE(1); | |
| 1015 | |
| 1016 /* Push miscellaneous constants onto the stack. */ | |
| 1017 | |
| 1018 CASE(_aconst_null): | |
| 1019 SET_STACK_OBJECT(NULL, 0); | |
| 1020 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1021 | |
| 1022 #undef OPC_CONST_n | |
| 1023 #define OPC_CONST_n(opcode, const_type, value) \ | |
| 1024 CASE(opcode): \ | |
| 1025 SET_STACK_ ## const_type(value, 0); \ | |
| 1026 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1027 | |
| 1028 OPC_CONST_n(_iconst_m1, INT, -1); | |
| 1029 OPC_CONST_n(_iconst_0, INT, 0); | |
| 1030 OPC_CONST_n(_iconst_1, INT, 1); | |
| 1031 OPC_CONST_n(_iconst_2, INT, 2); | |
| 1032 OPC_CONST_n(_iconst_3, INT, 3); | |
| 1033 OPC_CONST_n(_iconst_4, INT, 4); | |
| 1034 OPC_CONST_n(_iconst_5, INT, 5); | |
| 1035 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
| 1036 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
| 1037 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
| 1038 | |
| 1039 #undef OPC_CONST2_n | |
| 1040 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
| 1041 CASE(_##opcname): \ | |
| 1042 { \ | |
| 1043 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
| 1044 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1045 } | |
| 1046 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
| 1047 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
| 1048 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
| 1049 OPC_CONST2_n(lconst_1, One, long, LONG); | |
| 1050 | |
| 1051 /* Load constant from constant pool: */ | |
| 1052 | |
| 1053 /* Push a 1-byte signed integer value onto the stack. */ | |
| 1054 CASE(_bipush): | |
| 1055 SET_STACK_INT((jbyte)(pc[1]), 0); | |
| 1056 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1057 | |
| 1058 /* Push a 2-byte signed integer constant onto the stack. */ | |
| 1059 CASE(_sipush): | |
| 1060 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
| 1061 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 1062 | |
| 1063 /* load from local variable */ | |
| 1064 | |
| 1065 CASE(_aload): | |
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1066 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
| 0 | 1067 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
| 1068 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1069 | |
| 1070 CASE(_iload): | |
| 1071 CASE(_fload): | |
| 1072 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
| 1073 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1074 | |
| 1075 CASE(_lload): | |
| 1076 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
| 1077 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1078 | |
| 1079 CASE(_dload): | |
| 1080 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
| 1081 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1082 | |
| 1083 #undef OPC_LOAD_n | |
| 1084 #define OPC_LOAD_n(num) \ | |
| 1085 CASE(_aload_##num): \ | |
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1086 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
| 0 | 1087 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
| 1088 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1089 \ | |
| 1090 CASE(_iload_##num): \ | |
| 1091 CASE(_fload_##num): \ | |
| 1092 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
| 1093 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1094 \ | |
| 1095 CASE(_lload_##num): \ | |
| 1096 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
| 1097 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1098 CASE(_dload_##num): \ | |
| 1099 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
| 1100 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1101 | |
| 1102 OPC_LOAD_n(0); | |
| 1103 OPC_LOAD_n(1); | |
| 1104 OPC_LOAD_n(2); | |
| 1105 OPC_LOAD_n(3); | |
| 1106 | |
| 1107 /* store to a local variable */ | |
| 1108 | |
| 1109 CASE(_astore): | |
| 1110 astore(topOfStack, -1, locals, pc[1]); | |
| 1111 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1112 | |
| 1113 CASE(_istore): | |
| 1114 CASE(_fstore): | |
| 1115 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
| 1116 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1117 | |
| 1118 CASE(_lstore): | |
| 1119 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
| 1120 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1121 | |
| 1122 CASE(_dstore): | |
| 1123 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
| 1124 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1125 | |
| 1126 CASE(_wide): { | |
| 1127 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
| 1128 | |
| 1129 opcode = pc[1]; | |
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1130 |
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1131 // Wide and it's sub-bytecode are counted as separate instructions. If we |
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1132 // don't account for this here, the bytecode trace skips the next bytecode. |
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1133 DO_UPDATE_INSTRUCTION_COUNT(opcode); |
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1134 |
| 0 | 1135 switch(opcode) { |
| 1136 case Bytecodes::_aload: | |
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1137 VERIFY_OOP(LOCALS_OBJECT(reg)); |
| 0 | 1138 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
| 1139 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1140 | |
| 1141 case Bytecodes::_iload: | |
| 1142 case Bytecodes::_fload: | |
| 1143 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
| 1144 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1145 | |
| 1146 case Bytecodes::_lload: | |
| 1147 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1148 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1149 | |
| 1150 case Bytecodes::_dload: | |
| 1151 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1152 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1153 | |
| 1154 case Bytecodes::_astore: | |
| 1155 astore(topOfStack, -1, locals, reg); | |
| 1156 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1157 | |
| 1158 case Bytecodes::_istore: | |
| 1159 case Bytecodes::_fstore: | |
| 1160 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
| 1161 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1162 | |
| 1163 case Bytecodes::_lstore: | |
| 1164 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
| 1165 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1166 | |
| 1167 case Bytecodes::_dstore: | |
| 1168 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
| 1169 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1170 | |
| 1171 case Bytecodes::_iinc: { | |
| 1172 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
| 1173 // Be nice to see what this generates.... QQQ | |
| 1174 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
| 1175 UPDATE_PC_AND_CONTINUE(6); | |
| 1176 } | |
| 1177 case Bytecodes::_ret: | |
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1178 // Profile ret. |
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1179 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(reg)))); |
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1180 // Now, update the pc. |
| 0 | 1181 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); |
| 1182 UPDATE_PC_AND_CONTINUE(0); | |
| 1183 default: | |
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1184 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode", note_no_trap); |
| 0 | 1185 } |
| 1186 } | |
| 1187 | |
| 1188 | |
| 1189 #undef OPC_STORE_n | |
| 1190 #define OPC_STORE_n(num) \ | |
| 1191 CASE(_astore_##num): \ | |
| 1192 astore(topOfStack, -1, locals, num); \ | |
| 1193 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1194 CASE(_istore_##num): \ | |
| 1195 CASE(_fstore_##num): \ | |
| 1196 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
| 1197 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1198 | |
| 1199 OPC_STORE_n(0); | |
| 1200 OPC_STORE_n(1); | |
| 1201 OPC_STORE_n(2); | |
| 1202 OPC_STORE_n(3); | |
| 1203 | |
| 1204 #undef OPC_DSTORE_n | |
| 1205 #define OPC_DSTORE_n(num) \ | |
| 1206 CASE(_dstore_##num): \ | |
| 1207 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
| 1208 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1209 CASE(_lstore_##num): \ | |
| 1210 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
| 1211 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1212 | |
| 1213 OPC_DSTORE_n(0); | |
| 1214 OPC_DSTORE_n(1); | |
| 1215 OPC_DSTORE_n(2); | |
| 1216 OPC_DSTORE_n(3); | |
| 1217 | |
| 1218 /* stack pop, dup, and insert opcodes */ | |
| 1219 | |
| 1220 | |
| 1221 CASE(_pop): /* Discard the top item on the stack */ | |
| 1222 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1223 | |
| 1224 | |
| 1225 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
| 1226 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1227 | |
| 1228 | |
| 1229 CASE(_dup): /* Duplicate the top item on the stack */ | |
| 1230 dup(topOfStack); | |
| 1231 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1232 | |
| 1233 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
| 1234 dup2(topOfStack); | |
| 1235 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1236 | |
| 1237 CASE(_dup_x1): /* insert top word two down */ | |
| 1238 dup_x1(topOfStack); | |
| 1239 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1240 | |
| 1241 CASE(_dup_x2): /* insert top word three down */ | |
| 1242 dup_x2(topOfStack); | |
| 1243 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1244 | |
| 1245 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
| 1246 dup2_x1(topOfStack); | |
| 1247 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1248 | |
| 1249 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
| 1250 dup2_x2(topOfStack); | |
| 1251 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1252 | |
| 1253 CASE(_swap): { /* swap top two elements on the stack */ | |
| 1254 swap(topOfStack); | |
| 1255 UPDATE_PC_AND_CONTINUE(1); | |
| 1256 } | |
| 1257 | |
| 1258 /* Perform various binary integer operations */ | |
| 1259 | |
| 1260 #undef OPC_INT_BINARY | |
| 1261 #define OPC_INT_BINARY(opcname, opname, test) \ | |
| 1262 CASE(_i##opcname): \ | |
| 1263 if (test && (STACK_INT(-1) == 0)) { \ | |
| 1264 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1265 "/ by zero", note_div0Check_trap); \ |
| 0 | 1266 } \ |
| 1267 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1268 STACK_INT(-1)), \ | |
| 1269 -2); \ | |
| 1270 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1271 CASE(_l##opcname): \ | |
| 1272 { \ | |
| 1273 if (test) { \ | |
| 1274 jlong l1 = STACK_LONG(-1); \ | |
| 1275 if (VMlongEqz(l1)) { \ | |
| 1276 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1277 "/ by long zero", note_div0Check_trap); \ |
| 0 | 1278 } \ |
| 1279 } \ | |
| 1280 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
| 1281 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
| 1282 STACK_LONG(-1)), \ | |
| 1283 -3); \ | |
| 1284 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1285 } | |
| 1286 | |
| 1287 OPC_INT_BINARY(add, Add, 0); | |
| 1288 OPC_INT_BINARY(sub, Sub, 0); | |
| 1289 OPC_INT_BINARY(mul, Mul, 0); | |
| 1290 OPC_INT_BINARY(and, And, 0); | |
| 1291 OPC_INT_BINARY(or, Or, 0); | |
| 1292 OPC_INT_BINARY(xor, Xor, 0); | |
| 1293 OPC_INT_BINARY(div, Div, 1); | |
| 1294 OPC_INT_BINARY(rem, Rem, 1); | |
| 1295 | |
| 1296 | |
| 1297 /* Perform various binary floating number operations */ | |
| 1298 /* On some machine/platforms/compilers div zero check can be implicit */ | |
| 1299 | |
| 1300 #undef OPC_FLOAT_BINARY | |
| 1301 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
| 1302 CASE(_d##opcname): { \ | |
| 1303 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
| 1304 STACK_DOUBLE(-1)), \ | |
| 1305 -3); \ | |
| 1306 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1307 } \ | |
| 1308 CASE(_f##opcname): \ | |
| 1309 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
| 1310 STACK_FLOAT(-1)), \ | |
| 1311 -2); \ | |
| 1312 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1313 | |
| 1314 | |
| 1315 OPC_FLOAT_BINARY(add, Add); | |
| 1316 OPC_FLOAT_BINARY(sub, Sub); | |
| 1317 OPC_FLOAT_BINARY(mul, Mul); | |
| 1318 OPC_FLOAT_BINARY(div, Div); | |
| 1319 OPC_FLOAT_BINARY(rem, Rem); | |
| 1320 | |
| 1321 /* Shift operations | |
| 1322 * Shift left int and long: ishl, lshl | |
| 1323 * Logical shift right int and long w/zero extension: iushr, lushr | |
| 1324 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
| 1325 */ | |
| 1326 | |
| 1327 #undef OPC_SHIFT_BINARY | |
| 1328 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
| 1329 CASE(_i##opcname): \ | |
| 1330 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1331 STACK_INT(-1)), \ | |
| 1332 -2); \ | |
| 1333 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1334 CASE(_l##opcname): \ | |
| 1335 { \ | |
| 1336 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
| 1337 STACK_INT(-1)), \ | |
| 1338 -2); \ | |
| 1339 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1340 } | |
| 1341 | |
| 1342 OPC_SHIFT_BINARY(shl, Shl); | |
| 1343 OPC_SHIFT_BINARY(shr, Shr); | |
| 1344 OPC_SHIFT_BINARY(ushr, Ushr); | |
| 1345 | |
| 1346 /* Increment local variable by constant */ | |
| 1347 CASE(_iinc): | |
| 1348 { | |
| 1349 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
| 1350 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
| 1351 UPDATE_PC_AND_CONTINUE(3); | |
| 1352 } | |
| 1353 | |
| 1354 /* negate the value on the top of the stack */ | |
| 1355 | |
| 1356 CASE(_ineg): | |
| 1357 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
| 1358 UPDATE_PC_AND_CONTINUE(1); | |
| 1359 | |
| 1360 CASE(_fneg): | |
| 1361 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
| 1362 UPDATE_PC_AND_CONTINUE(1); | |
| 1363 | |
| 1364 CASE(_lneg): | |
| 1365 { | |
| 1366 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
| 1367 UPDATE_PC_AND_CONTINUE(1); | |
| 1368 } | |
| 1369 | |
| 1370 CASE(_dneg): | |
| 1371 { | |
| 1372 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
| 1373 UPDATE_PC_AND_CONTINUE(1); | |
| 1374 } | |
| 1375 | |
| 1376 /* Conversion operations */ | |
| 1377 | |
| 1378 CASE(_i2f): /* convert top of stack int to float */ | |
| 1379 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
| 1380 UPDATE_PC_AND_CONTINUE(1); | |
| 1381 | |
| 1382 CASE(_i2l): /* convert top of stack int to long */ | |
| 1383 { | |
| 1384 // this is ugly QQQ | |
| 1385 jlong r = VMint2Long(STACK_INT(-1)); | |
| 1386 MORE_STACK(-1); // Pop | |
| 1387 SET_STACK_LONG(r, 1); | |
| 1388 | |
| 1389 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1390 } | |
| 1391 | |
| 1392 CASE(_i2d): /* convert top of stack int to double */ | |
| 1393 { | |
| 1394 // this is ugly QQQ (why cast to jlong?? ) | |
| 1395 jdouble r = (jlong)STACK_INT(-1); | |
| 1396 MORE_STACK(-1); // Pop | |
| 1397 SET_STACK_DOUBLE(r, 1); | |
| 1398 | |
| 1399 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1400 } | |
| 1401 | |
| 1402 CASE(_l2i): /* convert top of stack long to int */ | |
| 1403 { | |
| 1404 jint r = VMlong2Int(STACK_LONG(-1)); | |
| 1405 MORE_STACK(-2); // Pop | |
| 1406 SET_STACK_INT(r, 0); | |
| 1407 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1408 } | |
| 1409 | |
| 1410 CASE(_l2f): /* convert top of stack long to float */ | |
| 1411 { | |
| 1412 jlong r = STACK_LONG(-1); | |
| 1413 MORE_STACK(-2); // Pop | |
| 1414 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
| 1415 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1416 } | |
| 1417 | |
| 1418 CASE(_l2d): /* convert top of stack long to double */ | |
| 1419 { | |
| 1420 jlong r = STACK_LONG(-1); | |
| 1421 MORE_STACK(-2); // Pop | |
| 1422 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
| 1423 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1424 } | |
| 1425 | |
| 1426 CASE(_f2i): /* Convert top of stack float to int */ | |
| 1427 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
| 1428 UPDATE_PC_AND_CONTINUE(1); | |
| 1429 | |
| 1430 CASE(_f2l): /* convert top of stack float to long */ | |
| 1431 { | |
| 1432 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
| 1433 MORE_STACK(-1); // POP | |
| 1434 SET_STACK_LONG(r, 1); | |
| 1435 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1436 } | |
| 1437 | |
| 1438 CASE(_f2d): /* convert top of stack float to double */ | |
| 1439 { | |
| 1440 jfloat f; | |
| 1441 jdouble r; | |
| 1442 f = STACK_FLOAT(-1); | |
| 1443 r = (jdouble) f; | |
| 1444 MORE_STACK(-1); // POP | |
| 1445 SET_STACK_DOUBLE(r, 1); | |
| 1446 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1447 } | |
| 1448 | |
| 1449 CASE(_d2i): /* convert top of stack double to int */ | |
| 1450 { | |
| 1451 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
| 1452 MORE_STACK(-2); | |
| 1453 SET_STACK_INT(r1, 0); | |
| 1454 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1455 } | |
| 1456 | |
| 1457 CASE(_d2f): /* convert top of stack double to float */ | |
| 1458 { | |
| 1459 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
| 1460 MORE_STACK(-2); | |
| 1461 SET_STACK_FLOAT(r1, 0); | |
| 1462 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1463 } | |
| 1464 | |
| 1465 CASE(_d2l): /* convert top of stack double to long */ | |
| 1466 { | |
| 1467 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
| 1468 MORE_STACK(-2); | |
| 1469 SET_STACK_LONG(r1, 1); | |
| 1470 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1471 } | |
| 1472 | |
| 1473 CASE(_i2b): | |
| 1474 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
| 1475 UPDATE_PC_AND_CONTINUE(1); | |
| 1476 | |
| 1477 CASE(_i2c): | |
| 1478 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
| 1479 UPDATE_PC_AND_CONTINUE(1); | |
| 1480 | |
| 1481 CASE(_i2s): | |
| 1482 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
| 1483 UPDATE_PC_AND_CONTINUE(1); | |
| 1484 | |
| 1485 /* comparison operators */ | |
| 1486 | |
| 1487 | |
| 1488 #define COMPARISON_OP(name, comparison) \ | |
| 1489 CASE(_if_icmp##name): { \ | |
|
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1490 const bool cmp = (STACK_INT(-2) comparison STACK_INT(-1)); \ |
|
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1491 int skip = cmp \ |
| 0 | 1492 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1493 address branch_pc = pc; \ | |
|
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1494 /* Profile branch. */ \ |
|
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1495 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1496 UPDATE_PC_AND_TOS(skip, -2); \ |
| 1497 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1498 CONTINUE; \ | |
| 1499 } \ | |
| 1500 CASE(_if##name): { \ | |
|
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1501 const bool cmp = (STACK_INT(-1) comparison 0); \ |
|
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1502 int skip = cmp \ |
| 0 | 1503 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1504 address branch_pc = pc; \ | |
|
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1505 /* Profile branch. */ \ |
|
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1506 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1507 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1508 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1509 CONTINUE; \ | |
| 1510 } | |
| 1511 | |
| 1512 #define COMPARISON_OP2(name, comparison) \ | |
| 1513 COMPARISON_OP(name, comparison) \ | |
| 1514 CASE(_if_acmp##name): { \ | |
|
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1515 const bool cmp = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)); \ |
|
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1516 int skip = cmp \ |
| 0 | 1517 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1518 address branch_pc = pc; \ | |
|
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1519 /* Profile branch. */ \ |
|
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1520 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1521 UPDATE_PC_AND_TOS(skip, -2); \ |
| 1522 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1523 CONTINUE; \ | |
| 1524 } | |
| 1525 | |
| 1526 #define NULL_COMPARISON_NOT_OP(name) \ | |
| 1527 CASE(_if##name): { \ | |
|
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1528 const bool cmp = (!(STACK_OBJECT(-1) == NULL)); \ |
|
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1529 int skip = cmp \ |
| 0 | 1530 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1531 address branch_pc = pc; \ | |
|
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1532 /* Profile branch. */ \ |
|
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1533 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1534 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1535 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1536 CONTINUE; \ | |
| 1537 } | |
| 1538 | |
| 1539 #define NULL_COMPARISON_OP(name) \ | |
| 1540 CASE(_if##name): { \ | |
|
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1541 const bool cmp = ((STACK_OBJECT(-1) == NULL)); \ |
|
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1542 int skip = cmp \ |
| 0 | 1543 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1544 address branch_pc = pc; \ | |
|
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1545 /* Profile branch. */ \ |
|
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1546 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1547 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1548 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1549 CONTINUE; \ | |
| 1550 } | |
| 1551 COMPARISON_OP(lt, <); | |
| 1552 COMPARISON_OP(gt, >); | |
| 1553 COMPARISON_OP(le, <=); | |
| 1554 COMPARISON_OP(ge, >=); | |
| 1555 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
| 1556 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
| 1557 NULL_COMPARISON_OP(null); | |
| 1558 NULL_COMPARISON_NOT_OP(nonnull); | |
| 1559 | |
| 1560 /* Goto pc at specified offset in switch table. */ | |
| 1561 | |
| 1562 CASE(_tableswitch): { | |
| 1563 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1564 int32_t key = STACK_INT(-1); | |
| 1565 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
| 1566 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
| 1567 int32_t skip; | |
| 1568 key -= low; | |
|
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1569 if (((uint32_t) key > (uint32_t)(high - low))) { |
|
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1570 key = -1; |
|
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1571 skip = Bytes::get_Java_u4((address)&lpc[0]); |
|
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|
1572 } else { |
|
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1573 skip = Bytes::get_Java_u4((address)&lpc[key + 3]); |
|
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|
1574 } |
|
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|
1575 // Profile switch. |
|
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|
1576 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/key); |
|
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1577 // Does this really need a full backedge check (osr)? |
| 0 | 1578 address branch_pc = pc; |
| 1579 UPDATE_PC_AND_TOS(skip, -1); | |
| 1580 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1581 CONTINUE; | |
| 1582 } | |
| 1583 | |
|
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1584 /* Goto pc whose table entry matches specified key. */ |
| 0 | 1585 |
| 1586 CASE(_lookupswitch): { | |
| 1587 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1588 int32_t key = STACK_INT(-1); | |
| 1589 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
|
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1590 // Remember index. |
|
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|
1591 int index = -1; |
|
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|
1592 int newindex = 0; |
| 0 | 1593 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); |
| 1594 while (--npairs >= 0) { | |
|
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1595 lpc += 2; |
|
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1596 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { |
|
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|
1597 skip = Bytes::get_Java_u4((address)&lpc[1]); |
|
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1598 index = newindex; |
|
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|
1599 break; |
|
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1600 } |
|
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1601 newindex += 1; |
| 0 | 1602 } |
|
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1603 // Profile switch. |
|
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1604 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/index); |
| 0 | 1605 address branch_pc = pc; |
| 1606 UPDATE_PC_AND_TOS(skip, -1); | |
| 1607 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1608 CONTINUE; | |
| 1609 } | |
| 1610 | |
| 1611 CASE(_fcmpl): | |
| 1612 CASE(_fcmpg): | |
| 1613 { | |
| 1614 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
| 1615 STACK_FLOAT(-1), | |
| 1616 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
| 1617 -2); | |
| 1618 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1619 } | |
| 1620 | |
| 1621 CASE(_dcmpl): | |
| 1622 CASE(_dcmpg): | |
| 1623 { | |
| 1624 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
| 1625 STACK_DOUBLE(-1), | |
| 1626 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
| 1627 MORE_STACK(-4); // Pop | |
| 1628 SET_STACK_INT(r, 0); | |
| 1629 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1630 } | |
| 1631 | |
| 1632 CASE(_lcmp): | |
| 1633 { | |
| 1634 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
| 1635 MORE_STACK(-4); | |
| 1636 SET_STACK_INT(r, 0); | |
| 1637 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1638 } | |
| 1639 | |
| 1640 | |
| 1641 /* Return from a method */ | |
| 1642 | |
| 1643 CASE(_areturn): | |
| 1644 CASE(_ireturn): | |
| 1645 CASE(_freturn): | |
| 1646 { | |
| 1647 // Allow a safepoint before returning to frame manager. | |
| 1648 SAFEPOINT; | |
| 1649 | |
| 1650 goto handle_return; | |
| 1651 } | |
| 1652 | |
| 1653 CASE(_lreturn): | |
| 1654 CASE(_dreturn): | |
| 1655 { | |
| 1656 // Allow a safepoint before returning to frame manager. | |
| 1657 SAFEPOINT; | |
| 1658 goto handle_return; | |
| 1659 } | |
| 1660 | |
| 1661 CASE(_return_register_finalizer): { | |
| 1662 | |
| 1663 oop rcvr = LOCALS_OBJECT(0); | |
|
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1664 VERIFY_OOP(rcvr); |
|
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1665 if (rcvr->klass()->has_finalizer()) { |
| 0 | 1666 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
| 1667 } | |
| 1668 goto handle_return; | |
| 1669 } | |
| 1670 CASE(_return): { | |
| 1671 | |
| 1672 // Allow a safepoint before returning to frame manager. | |
| 1673 SAFEPOINT; | |
| 1674 goto handle_return; | |
| 1675 } | |
| 1676 | |
| 1677 /* Array access byte-codes */ | |
| 1678 | |
| 1679 /* Every array access byte-code starts out like this */ | |
| 1680 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
| 1681 #define ARRAY_INTRO(arrayOff) \ | |
| 1682 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
| 1683 jint index = STACK_INT(arrayOff + 1); \ | |
| 1684 char message[jintAsStringSize]; \ | |
| 1685 CHECK_NULL(arrObj); \ | |
| 1686 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
| 1687 sprintf(message, "%d", index); \ | |
| 1688 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
|
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1689 message, note_rangeCheck_trap); \ |
| 0 | 1690 } |
| 1691 | |
| 1692 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
| 1693 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
| 1694 { \ | |
| 1695 ARRAY_INTRO(-2); \ | |
|
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1696 (void)extra; \ |
| 0 | 1697 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
| 1698 -2); \ | |
| 1699 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1700 } | |
| 1701 | |
| 1702 /* 64-bit loads */ | |
| 1703 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
| 1704 { \ | |
| 1705 ARRAY_INTRO(-2); \ | |
| 1706 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
|
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1707 (void)extra; \ |
|
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1708 UPDATE_PC_AND_CONTINUE(1); \ |
| 0 | 1709 } |
| 1710 | |
| 1711 CASE(_iaload): | |
| 1712 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1713 CASE(_faload): | |
| 1714 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
|
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1715 CASE(_aaload): { |
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1716 ARRAY_INTRO(-2); |
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1717 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
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1718 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
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1719 } |
| 0 | 1720 CASE(_baload): |
| 1721 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1722 CASE(_caload): | |
| 1723 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1724 CASE(_saload): | |
| 1725 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1726 CASE(_laload): | |
| 1727 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
| 1728 CASE(_daload): | |
| 1729 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1730 | |
| 1731 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
| 1732 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
| 1733 { \ | |
| 1734 ARRAY_INTRO(-3); \ | |
|
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1735 (void)extra; \ |
| 0 | 1736 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1737 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
| 1738 } | |
| 1739 | |
| 1740 /* 64-bit stores */ | |
| 1741 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
| 1742 { \ | |
| 1743 ARRAY_INTRO(-4); \ | |
|
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1744 (void)extra; \ |
| 0 | 1745 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1746 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
| 1747 } | |
| 1748 | |
| 1749 CASE(_iastore): | |
| 1750 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1751 CASE(_fastore): | |
| 1752 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
| 1753 /* | |
| 1754 * This one looks different because of the assignability check | |
| 1755 */ | |
| 1756 CASE(_aastore): { | |
| 1757 oop rhsObject = STACK_OBJECT(-1); | |
|
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1758 VERIFY_OOP(rhsObject); |
| 0 | 1759 ARRAY_INTRO( -3); |
| 1760 // arrObj, index are set | |
| 1761 if (rhsObject != NULL) { | |
| 1762 /* Check assignability of rhsObject into arrObj */ | |
|
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1763 Klass* rhsKlass = rhsObject->klass(); // EBX (subclass) |
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1764 Klass* elemKlass = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
| 0 | 1765 // |
| 1766 // Check for compatibilty. This check must not GC!! | |
| 1767 // Seems way more expensive now that we must dispatch | |
| 1768 // | |
|
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1769 if (rhsKlass != elemKlass && !rhsKlass->is_subtype_of(elemKlass)) { // ebx->is... |
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1770 // Decrement counter if subtype check failed. |
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1771 BI_PROFILE_SUBTYPECHECK_FAILED(rhsKlass); |
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1772 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), "", note_arrayCheck_trap); |
| 0 | 1773 } |
|
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1774 // Profile checkcast with null_seen and receiver. |
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1775 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, rhsKlass); |
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1776 } else { |
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1777 // Profile checkcast with null_seen and receiver. |
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1778 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
| 0 | 1779 } |
|
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1780 ((objArrayOop) arrObj)->obj_at_put(index, rhsObject); |
| 0 | 1781 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
| 1782 } | |
| 1783 CASE(_bastore): | |
| 1784 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1785 CASE(_castore): | |
| 1786 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1787 CASE(_sastore): | |
| 1788 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1789 CASE(_lastore): | |
| 1790 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
| 1791 CASE(_dastore): | |
| 1792 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1793 | |
| 1794 CASE(_arraylength): | |
| 1795 { | |
| 1796 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
| 1797 CHECK_NULL(ary); | |
| 1798 SET_STACK_INT(ary->length(), -1); | |
| 1799 UPDATE_PC_AND_CONTINUE(1); | |
| 1800 } | |
| 1801 | |
| 1802 /* monitorenter and monitorexit for locking/unlocking an object */ | |
| 1803 | |
| 1804 CASE(_monitorenter): { | |
| 1805 oop lockee = STACK_OBJECT(-1); | |
| 1806 // derefing's lockee ought to provoke implicit null check | |
| 1807 CHECK_NULL(lockee); | |
| 1808 // find a free monitor or one already allocated for this object | |
| 1809 // if we find a matching object then we need a new monitor | |
| 1810 // since this is recursive enter | |
| 1811 BasicObjectLock* limit = istate->monitor_base(); | |
| 1812 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1813 BasicObjectLock* entry = NULL; | |
| 1814 while (most_recent != limit ) { | |
| 1815 if (most_recent->obj() == NULL) entry = most_recent; | |
| 1816 else if (most_recent->obj() == lockee) break; | |
| 1817 most_recent++; | |
| 1818 } | |
| 1819 if (entry != NULL) { | |
| 1820 entry->set_obj(lockee); | |
|
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1821 int success = false; |
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1822 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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1823 |
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1824 markOop mark = lockee->mark(); |
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1825 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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1826 // implies UseBiasedLocking |
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1827 if (mark->has_bias_pattern()) { |
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1828 uintptr_t thread_ident; |
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1829 uintptr_t anticipated_bias_locking_value; |
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1830 thread_ident = (uintptr_t)istate->thread(); |
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1831 anticipated_bias_locking_value = |
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1832 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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1833 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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1834 |
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1835 if (anticipated_bias_locking_value == 0) { |
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1836 // already biased towards this thread, nothing to do |
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1837 if (PrintBiasedLockingStatistics) { |
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1838 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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1839 } |
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1840 success = true; |
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1841 } |
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1842 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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1843 // try revoke bias |
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1844 markOop header = lockee->klass()->prototype_header(); |
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1845 if (hash != markOopDesc::no_hash) { |
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1846 header = header->copy_set_hash(hash); |
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1847 } |
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1848 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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1849 if (PrintBiasedLockingStatistics) |
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1850 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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1851 } |
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1852 } |
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1853 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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1854 // try rebias |
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1855 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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1856 if (hash != markOopDesc::no_hash) { |
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1857 new_header = new_header->copy_set_hash(hash); |
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1858 } |
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1859 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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1860 if (PrintBiasedLockingStatistics) |
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1861 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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1862 } |
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1863 else { |
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1864 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1865 } |
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1866 success = true; |
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1867 } |
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1868 else { |
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1869 // try to bias towards thread in case object is anonymously biased |
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1870 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1871 (uintptr_t)markOopDesc::age_mask_in_place | |
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1872 epoch_mask_in_place)); |
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1873 if (hash != markOopDesc::no_hash) { |
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1874 header = header->copy_set_hash(hash); |
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1875 } |
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1876 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1877 // debugging hint |
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1878 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1879 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1880 if (PrintBiasedLockingStatistics) |
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1881 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1882 } |
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1883 else { |
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1884 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1885 } |
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1886 success = true; |
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1887 } |
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1888 } |
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1889 |
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1890 // traditional lightweight locking |
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1891 if (!success) { |
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1892 markOop displaced = lockee->mark()->set_unlocked(); |
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1893 entry->lock()->set_displaced_header(displaced); |
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1894 bool call_vm = UseHeavyMonitors; |
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1895 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1896 // Is it simple recursive case? |
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1897 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1898 entry->lock()->set_displaced_header(NULL); |
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1899 } else { |
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1900 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1901 } |
| 0 | 1902 } |
| 1903 } | |
| 1904 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1905 } else { | |
| 1906 istate->set_msg(more_monitors); | |
| 1907 UPDATE_PC_AND_RETURN(0); // Re-execute | |
| 1908 } | |
| 1909 } | |
| 1910 | |
| 1911 CASE(_monitorexit): { | |
| 1912 oop lockee = STACK_OBJECT(-1); | |
| 1913 CHECK_NULL(lockee); | |
| 1914 // derefing's lockee ought to provoke implicit null check | |
| 1915 // find our monitor slot | |
| 1916 BasicObjectLock* limit = istate->monitor_base(); | |
| 1917 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1918 while (most_recent != limit ) { | |
| 1919 if ((most_recent)->obj() == lockee) { | |
| 1920 BasicLock* lock = most_recent->lock(); | |
| 1921 markOop header = lock->displaced_header(); | |
| 1922 most_recent->set_obj(NULL); | |
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1923 if (!lockee->mark()->has_bias_pattern()) { |
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1924 bool call_vm = UseHeavyMonitors; |
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1925 // If it isn't recursive we either must swap old header or call the runtime |
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1926 if (header != NULL || call_vm) { |
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1927 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1928 // restore object for the slow case |
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1929 most_recent->set_obj(lockee); |
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1930 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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1931 } |
| 0 | 1932 } |
| 1933 } | |
| 1934 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1935 } | |
| 1936 most_recent++; | |
| 1937 } | |
| 1938 // Need to throw illegal monitor state exception | |
| 1939 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
| 2480 | 1940 ShouldNotReachHere(); |
| 0 | 1941 } |
| 1942 | |
| 1943 /* All of the non-quick opcodes. */ | |
| 1944 | |
| 1945 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
| 1946 * constant pool index in the instruction. | |
| 1947 */ | |
| 1948 CASE(_getfield): | |
| 1949 CASE(_getstatic): | |
| 1950 { | |
| 1951 u2 index; | |
| 1952 ConstantPoolCacheEntry* cache; | |
| 1953 index = Bytes::get_native_u2(pc+1); | |
| 1954 | |
| 1955 // QQQ Need to make this as inlined as possible. Probably need to | |
| 1956 // split all the bytecode cases out so c++ compiler has a chance | |
| 1957 // for constant prop to fold everything possible away. | |
| 1958 | |
| 1959 cache = cp->entry_at(index); | |
| 1960 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 1961 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 1962 handle_exception); | |
| 1963 cache = cp->entry_at(index); | |
| 1964 } | |
| 1965 | |
| 1966 #ifdef VM_JVMTI | |
| 1967 if (_jvmti_interp_events) { | |
| 1968 int *count_addr; | |
| 1969 oop obj; | |
| 1970 // Check to see if a field modification watch has been set | |
| 1971 // before we take the time to call into the VM. | |
| 1972 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
| 1973 if ( *count_addr > 0 ) { | |
| 1974 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 1975 obj = (oop)NULL; | |
| 1976 } else { | |
| 1977 obj = (oop) STACK_OBJECT(-1); | |
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1978 VERIFY_OOP(obj); |
| 0 | 1979 } |
| 1980 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
| 1981 obj, | |
| 1982 cache), | |
| 1983 handle_exception); | |
| 1984 } | |
| 1985 } | |
| 1986 #endif /* VM_JVMTI */ | |
| 1987 | |
| 1988 oop obj; | |
| 1989 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 6926 | 1990 Klass* k = cache->f1_as_klass(); |
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1991 obj = k->java_mirror(); |
| 0 | 1992 MORE_STACK(1); // Assume single slot push |
| 1993 } else { | |
| 1994 obj = (oop) STACK_OBJECT(-1); | |
| 1995 CHECK_NULL(obj); | |
| 1996 } | |
| 1997 | |
| 1998 // | |
| 1999 // Now store the result on the stack | |
| 2000 // | |
| 2001 TosState tos_type = cache->flag_state(); | |
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2002 int field_offset = cache->f2_as_index(); |
| 0 | 2003 if (cache->is_volatile()) { |
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2004 if (support_IRIW_for_not_multiple_copy_atomic_cpu) { |
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2005 OrderAccess::fence(); |
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2006 } |
| 0 | 2007 if (tos_type == atos) { |
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2008 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
| 0 | 2009 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
| 2010 } else if (tos_type == itos) { | |
| 2011 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
| 2012 } else if (tos_type == ltos) { | |
| 2013 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
| 2014 MORE_STACK(1); | |
| 2015 } else if (tos_type == btos) { | |
| 2016 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
| 2017 } else if (tos_type == ctos) { | |
| 2018 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
| 2019 } else if (tos_type == stos) { | |
| 2020 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
| 2021 } else if (tos_type == ftos) { | |
| 2022 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
| 2023 } else { | |
| 2024 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
| 2025 MORE_STACK(1); | |
| 2026 } | |
| 2027 } else { | |
| 2028 if (tos_type == atos) { | |
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2029 VERIFY_OOP(obj->obj_field(field_offset)); |
| 0 | 2030 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
| 2031 } else if (tos_type == itos) { | |
| 2032 SET_STACK_INT(obj->int_field(field_offset), -1); | |
| 2033 } else if (tos_type == ltos) { | |
| 2034 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
| 2035 MORE_STACK(1); | |
| 2036 } else if (tos_type == btos) { | |
| 2037 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
| 2038 } else if (tos_type == ctos) { | |
| 2039 SET_STACK_INT(obj->char_field(field_offset), -1); | |
| 2040 } else if (tos_type == stos) { | |
| 2041 SET_STACK_INT(obj->short_field(field_offset), -1); | |
| 2042 } else if (tos_type == ftos) { | |
| 2043 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
| 2044 } else { | |
| 2045 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
| 2046 MORE_STACK(1); | |
| 2047 } | |
| 2048 } | |
| 2049 | |
| 2050 UPDATE_PC_AND_CONTINUE(3); | |
| 2051 } | |
| 2052 | |
| 2053 CASE(_putfield): | |
| 2054 CASE(_putstatic): | |
| 2055 { | |
| 2056 u2 index = Bytes::get_native_u2(pc+1); | |
| 2057 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2058 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2059 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 2060 handle_exception); | |
| 2061 cache = cp->entry_at(index); | |
| 2062 } | |
| 2063 | |
| 2064 #ifdef VM_JVMTI | |
| 2065 if (_jvmti_interp_events) { | |
| 2066 int *count_addr; | |
| 2067 oop obj; | |
| 2068 // Check to see if a field modification watch has been set | |
| 2069 // before we take the time to call into the VM. | |
| 2070 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
| 2071 if ( *count_addr > 0 ) { | |
| 2072 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 2073 obj = (oop)NULL; | |
| 2074 } | |
| 2075 else { | |
| 2076 if (cache->is_long() || cache->is_double()) { | |
| 2077 obj = (oop) STACK_OBJECT(-3); | |
| 2078 } else { | |
| 2079 obj = (oop) STACK_OBJECT(-2); | |
| 2080 } | |
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2081 VERIFY_OOP(obj); |
| 0 | 2082 } |
| 2083 | |
| 2084 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
| 2085 obj, | |
| 2086 cache, | |
| 2087 (jvalue *)STACK_SLOT(-1)), | |
| 2088 handle_exception); | |
| 2089 } | |
| 2090 } | |
| 2091 #endif /* VM_JVMTI */ | |
| 2092 | |
| 2093 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2094 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2095 | |
| 2096 oop obj; | |
| 2097 int count; | |
| 2098 TosState tos_type = cache->flag_state(); | |
| 2099 | |
| 2100 count = -1; | |
| 2101 if (tos_type == ltos || tos_type == dtos) { | |
| 2102 --count; | |
| 2103 } | |
| 2104 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 6926 | 2105 Klass* k = cache->f1_as_klass(); |
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2106 obj = k->java_mirror(); |
| 0 | 2107 } else { |
| 2108 --count; | |
| 2109 obj = (oop) STACK_OBJECT(count); | |
| 2110 CHECK_NULL(obj); | |
| 2111 } | |
| 2112 | |
| 2113 // | |
| 2114 // Now store the result | |
| 2115 // | |
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2116 int field_offset = cache->f2_as_index(); |
| 0 | 2117 if (cache->is_volatile()) { |
| 2118 if (tos_type == itos) { | |
| 2119 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
| 2120 } else if (tos_type == atos) { | |
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2121 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2122 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2123 } else if (tos_type == btos) { | |
| 2124 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
| 2125 } else if (tos_type == ltos) { | |
| 2126 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
| 2127 } else if (tos_type == ctos) { | |
| 2128 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
| 2129 } else if (tos_type == stos) { | |
| 2130 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
| 2131 } else if (tos_type == ftos) { | |
| 2132 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2133 } else { | |
| 2134 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2135 } | |
| 2136 OrderAccess::storeload(); | |
| 2137 } else { | |
| 2138 if (tos_type == itos) { | |
| 2139 obj->int_field_put(field_offset, STACK_INT(-1)); | |
| 2140 } else if (tos_type == atos) { | |
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2141 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2142 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2143 } else if (tos_type == btos) { | |
| 2144 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
| 2145 } else if (tos_type == ltos) { | |
| 2146 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
| 2147 } else if (tos_type == ctos) { | |
| 2148 obj->char_field_put(field_offset, STACK_INT(-1)); | |
| 2149 } else if (tos_type == stos) { | |
| 2150 obj->short_field_put(field_offset, STACK_INT(-1)); | |
| 2151 } else if (tos_type == ftos) { | |
| 2152 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2153 } else { | |
| 2154 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2155 } | |
| 2156 } | |
| 2157 | |
| 2158 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
| 2159 } | |
| 2160 | |
| 2161 CASE(_new): { | |
| 2162 u2 index = Bytes::get_Java_u2(pc+1); | |
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2163 ConstantPool* constants = istate->method()->constants(); |
| 0 | 2164 if (!constants->tag_at(index).is_unresolved_klass()) { |
| 2165 // Make sure klass is initialized and doesn't have a finalizer | |
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2166 Klass* entry = constants->slot_at(index).get_klass(); |
| 0 | 2167 assert(entry->is_klass(), "Should be resolved klass"); |
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2168 Klass* k_entry = (Klass*) entry; |
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2169 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
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2170 InstanceKlass* ik = (InstanceKlass*) k_entry; |
| 0 | 2171 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
| 2172 size_t obj_size = ik->size_helper(); | |
| 2173 oop result = NULL; | |
| 2174 // If the TLAB isn't pre-zeroed then we'll have to do it | |
| 2175 bool need_zero = !ZeroTLAB; | |
| 2176 if (UseTLAB) { | |
| 2177 result = (oop) THREAD->tlab().allocate(obj_size); | |
| 2178 } | |
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2179 // Disable non-TLAB-based fast-path, because profiling requires that all |
|
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2180 // allocations go through InterpreterRuntime::_new() if THREAD->tlab().allocate |
|
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|
2181 // returns NULL. |
|
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|
2182 #ifndef CC_INTERP_PROFILE |
| 0 | 2183 if (result == NULL) { |
| 2184 need_zero = true; | |
| 2185 // Try allocate in shared eden | |
|
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|
2186 retry: |
| 0 | 2187 HeapWord* compare_to = *Universe::heap()->top_addr(); |
| 2188 HeapWord* new_top = compare_to + obj_size; | |
| 2189 if (new_top <= *Universe::heap()->end_addr()) { | |
| 2190 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
| 2191 goto retry; | |
| 2192 } | |
| 2193 result = (oop) compare_to; | |
| 2194 } | |
| 2195 } | |
|
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|
2196 #endif |
| 0 | 2197 if (result != NULL) { |
| 2198 // Initialize object (if nonzero size and need) and then the header | |
| 2199 if (need_zero ) { | |
| 2200 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
| 2201 obj_size -= sizeof(oopDesc) / oopSize; | |
| 2202 if (obj_size > 0 ) { | |
| 2203 memset(to_zero, 0, obj_size * HeapWordSize); | |
| 2204 } | |
| 2205 } | |
| 2206 if (UseBiasedLocking) { | |
| 2207 result->set_mark(ik->prototype_header()); | |
| 2208 } else { | |
| 2209 result->set_mark(markOopDesc::prototype()); | |
| 2210 } | |
|
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|
2211 result->set_klass_gap(0); |
| 0 | 2212 result->set_klass(k_entry); |
|
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|
2213 // Must prevent reordering of stores for object initialization |
|
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|
2214 // with stores that publish the new object. |
|
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|
2215 OrderAccess::storestore(); |
| 0 | 2216 SET_STACK_OBJECT(result, 0); |
| 2217 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2218 } | |
| 2219 } | |
| 2220 } | |
| 2221 // Slow case allocation | |
| 2222 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
| 2223 handle_exception); | |
|
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|
2224 // Must prevent reordering of stores for object initialization |
|
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|
2225 // with stores that publish the new object. |
|
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|
2226 OrderAccess::storestore(); |
| 0 | 2227 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
| 2228 THREAD->set_vm_result(NULL); | |
| 2229 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2230 } | |
| 2231 CASE(_anewarray): { | |
| 2232 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2233 jint size = STACK_INT(-1); | |
| 2234 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
| 2235 handle_exception); | |
|
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|
2236 // Must prevent reordering of stores for object initialization |
|
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|
2237 // with stores that publish the new object. |
|
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|
2238 OrderAccess::storestore(); |
| 0 | 2239 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
| 2240 THREAD->set_vm_result(NULL); | |
| 2241 UPDATE_PC_AND_CONTINUE(3); | |
| 2242 } | |
| 2243 CASE(_multianewarray): { | |
| 2244 jint dims = *(pc+3); | |
| 2245 jint size = STACK_INT(-1); | |
| 2246 // stack grows down, dimensions are up! | |
| 2247 jint *dimarray = | |
| 1509 | 2248 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
| 2249 Interpreter::stackElementWords-1]; | |
| 0 | 2250 //adjust pointer to start of stack element |
| 2251 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
| 2252 handle_exception); | |
|
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|
2253 // Must prevent reordering of stores for object initialization |
|
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|
2254 // with stores that publish the new object. |
|
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|
2255 OrderAccess::storestore(); |
| 0 | 2256 SET_STACK_OBJECT(THREAD->vm_result(), -dims); |
| 2257 THREAD->set_vm_result(NULL); | |
| 2258 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
| 2259 } | |
| 2260 CASE(_checkcast): | |
| 2261 if (STACK_OBJECT(-1) != NULL) { | |
|
1681
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|
2262 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2263 u2 index = Bytes::get_Java_u2(pc+1); |
| 2264 // Constant pool may have actual klass or unresolved klass. If it is | |
|
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|
2265 // unresolved we must resolve it. |
| 0 | 2266 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
| 2267 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2268 } | |
|
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|
2269 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
|
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|
2270 Klass* objKlass = STACK_OBJECT(-1)->klass(); // ebx |
| 0 | 2271 // |
| 2272 // Check for compatibilty. This check must not GC!! | |
|
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|
2273 // Seems way more expensive now that we must dispatch. |
| 0 | 2274 // |
|
14420
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|
2275 if (objKlass != klassOf && !objKlass->is_subtype_of(klassOf)) { |
|
abe03600372a
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diff
changeset
|
2276 // Decrement counter at checkcast. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2277 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
| 0 | 2278 ResourceMark rm(THREAD); |
|
14420
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diff
changeset
|
2279 const char* objName = objKlass->external_name(); |
| 6983 | 2280 const char* klassName = klassOf->external_name(); |
| 0 | 2281 char* message = SharedRuntime::generate_class_cast_message( |
| 2282 objName, klassName); | |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2283 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message, note_classCheck_trap); |
| 0 | 2284 } |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2285 // Profile checkcast with null_seen and receiver. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2286 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, objKlass); |
| 0 | 2287 } else { |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2288 // Profile checkcast with null_seen and receiver. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2289 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
| 0 | 2290 } |
| 2291 UPDATE_PC_AND_CONTINUE(3); | |
| 2292 | |
| 2293 CASE(_instanceof): | |
| 2294 if (STACK_OBJECT(-1) == NULL) { | |
| 2295 SET_STACK_INT(0, -1); | |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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changeset
|
2296 // Profile instanceof with null_seen and receiver. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
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changeset
|
2297 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/true, NULL); |
| 0 | 2298 } else { |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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diff
changeset
|
2299 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2300 u2 index = Bytes::get_Java_u2(pc+1); |
| 2301 // Constant pool may have actual klass or unresolved klass. If it is | |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2302 // unresolved we must resolve it. |
| 0 | 2303 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
| 2304 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2305 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2306 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2307 Klass* objKlass = STACK_OBJECT(-1)->klass(); |
| 0 | 2308 // |
| 2309 // Check for compatibilty. This check must not GC!! | |
|
14420
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diff
changeset
|
2310 // Seems way more expensive now that we must dispatch. |
| 0 | 2311 // |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2312 if ( objKlass == klassOf || objKlass->is_subtype_of(klassOf)) { |
| 0 | 2313 SET_STACK_INT(1, -1); |
| 2314 } else { | |
| 2315 SET_STACK_INT(0, -1); | |
|
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2316 // Decrement counter at checkcast. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
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14417
diff
changeset
|
2317 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
| 0 | 2318 } |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2319 // Profile instanceof with null_seen and receiver. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2320 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/false, objKlass); |
| 0 | 2321 } |
| 2322 UPDATE_PC_AND_CONTINUE(3); | |
| 2323 | |
| 2324 CASE(_ldc_w): | |
| 2325 CASE(_ldc): | |
| 2326 { | |
| 2327 u2 index; | |
| 2328 bool wide = false; | |
| 2329 int incr = 2; // frequent case | |
| 2330 if (opcode == Bytecodes::_ldc) { | |
| 2331 index = pc[1]; | |
| 2332 } else { | |
| 2333 index = Bytes::get_Java_u2(pc+1); | |
| 2334 incr = 3; | |
| 2335 wide = true; | |
| 2336 } | |
| 2337 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2338 ConstantPool* constants = METHOD->constants(); |
| 0 | 2339 switch (constants->tag_at(index).value()) { |
| 2340 case JVM_CONSTANT_Integer: | |
| 2341 SET_STACK_INT(constants->int_at(index), 0); | |
| 2342 break; | |
| 2343 | |
| 2344 case JVM_CONSTANT_Float: | |
| 2345 SET_STACK_FLOAT(constants->float_at(index), 0); | |
| 2346 break; | |
| 2347 | |
| 2348 case JVM_CONSTANT_String: | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
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changeset
|
2349 { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
2350 oop result = constants->resolved_references()->obj_at(index); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2351 if (result == NULL) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
2352 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2353 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
2354 THREAD->set_vm_result(NULL); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2355 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
2356 VERIFY_OOP(result); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2357 SET_STACK_OBJECT(result, 0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
2358 } |
| 0 | 2359 break; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
2360 } |
| 0 | 2361 |
| 2362 case JVM_CONSTANT_Class: | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2260
diff
changeset
|
2363 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2260
diff
changeset
|
2364 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
| 0 | 2365 break; |
| 2366 | |
| 2367 case JVM_CONSTANT_UnresolvedClass: | |
| 2368 case JVM_CONSTANT_UnresolvedClassInError: | |
| 2369 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
| 2370 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
| 2371 THREAD->set_vm_result(NULL); | |
| 2372 break; | |
| 2373 | |
| 2374 default: ShouldNotReachHere(); | |
| 2375 } | |
| 2376 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
| 2377 } | |
| 2378 | |
| 2379 CASE(_ldc2_w): | |
| 2380 { | |
| 2381 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2382 | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
2383 ConstantPool* constants = METHOD->constants(); |
| 0 | 2384 switch (constants->tag_at(index).value()) { |
| 2385 | |
| 2386 case JVM_CONSTANT_Long: | |
| 2387 SET_STACK_LONG(constants->long_at(index), 1); | |
| 2388 break; | |
| 2389 | |
| 2390 case JVM_CONSTANT_Double: | |
| 2391 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
| 2392 break; | |
| 2393 default: ShouldNotReachHere(); | |
| 2394 } | |
| 2395 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
| 2396 } | |
| 2397 | |
| 2480 | 2398 CASE(_fast_aldc_w): |
| 2399 CASE(_fast_aldc): { | |
| 2400 u2 index; | |
| 2401 int incr; | |
| 2402 if (opcode == Bytecodes::_fast_aldc) { | |
| 2403 index = pc[1]; | |
| 2404 incr = 2; | |
| 2405 } else { | |
| 2406 index = Bytes::get_native_u2(pc+1); | |
| 2407 incr = 3; | |
| 2408 } | |
| 2409 | |
| 2410 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
| 2411 // This kind of CP cache entry does not need to match the flags byte, because | |
| 2412 // there is a 1-1 relation between bytecode type and CP entry type. | |
|
6725
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|
2413 ConstantPool* constants = METHOD->constants(); |
|
da91efe96a93
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changeset
|
2414 oop result = constants->resolved_references()->obj_at(index); |
|
6266
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changeset
|
2415 if (result == NULL) { |
| 2480 | 2416 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
| 2417 handle_exception); | |
|
6725
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|
2418 result = THREAD->vm_result(); |
| 2480 | 2419 } |
| 2420 | |
|
6266
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changeset
|
2421 VERIFY_OOP(result); |
|
1d7922586cf6
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|
2422 SET_STACK_OBJECT(result, 0); |
| 2480 | 2423 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
| 2424 } | |
| 2425 | |
| 2426 CASE(_invokedynamic): { | |
| 6926 | 2427 |
| 2480 | 2428 if (!EnableInvokeDynamic) { |
| 2429 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
| 2430 // The verifier will stop it. However, if we get past the verifier, | |
| 2431 // this will stop the thread in a reasonable way, without crashing the JVM. | |
| 2432 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
| 2433 handle_exception); | |
| 2434 ShouldNotReachHere(); | |
| 2435 } | |
| 2436 | |
| 6926 | 2437 u4 index = Bytes::get_native_u4(pc+1); |
| 2438 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
| 2480 | 2439 |
|
6725
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changeset
|
2440 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
| 2480 | 2441 // This kind of CP cache entry does not need to match the flags byte, because |
| 2442 // there is a 1-1 relation between bytecode type and CP entry type. | |
| 6926 | 2443 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
| 2480 | 2444 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
| 2445 handle_exception); | |
| 6926 | 2446 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
| 2447 } | |
| 2448 | |
| 2449 Method* method = cache->f1_as_method(); | |
|
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|
2450 if (VerifyOops) method->verify(); |
| 6926 | 2451 |
| 2452 if (cache->has_appendix()) { | |
| 2453 ConstantPool* constants = METHOD->constants(); | |
| 2454 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2455 MORE_STACK(1); | |
| 2456 } | |
| 2457 | |
| 2458 istate->set_msg(call_method); | |
| 2459 istate->set_callee(method); | |
| 2460 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2461 istate->set_bcp_advance(5); | |
| 2462 | |
|
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|
2463 // Invokedynamic has got a call counter, just like an invokestatic -> increment! |
|
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|
2464 BI_PROFILE_UPDATE_CALL(); |
|
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|
2465 |
| 6926 | 2466 UPDATE_PC_AND_RETURN(0); // I'll be back... |
| 2467 } | |
| 2468 | |
| 2469 CASE(_invokehandle): { | |
| 2470 | |
| 2471 if (!EnableInvokeDynamic) { | |
| 2472 ShouldNotReachHere(); | |
| 2480 | 2473 } |
| 2474 | |
| 6926 | 2475 u2 index = Bytes::get_native_u2(pc+1); |
| 2476 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2477 | |
| 2478 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
| 2479 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
| 2480 handle_exception); | |
| 2481 cache = cp->entry_at(index); | |
| 2482 } | |
| 2483 | |
| 2484 Method* method = cache->f1_as_method(); | |
|
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|
2485 if (VerifyOops) method->verify(); |
| 6926 | 2486 |
| 2487 if (cache->has_appendix()) { | |
| 2488 ConstantPool* constants = METHOD->constants(); | |
| 2489 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2490 MORE_STACK(1); | |
| 2491 } | |
| 2492 | |
| 2493 istate->set_msg(call_method); | |
| 2494 istate->set_callee(method); | |
| 2495 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2496 istate->set_bcp_advance(3); | |
| 2480 | 2497 |
|
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2498 // Invokehandle has got a call counter, just like a final call -> increment! |
|
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|
2499 BI_PROFILE_UPDATE_FINALCALL(); |
|
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|
2500 |
| 2480 | 2501 UPDATE_PC_AND_RETURN(0); // I'll be back... |
| 2502 } | |
| 2503 | |
| 0 | 2504 CASE(_invokeinterface): { |
| 2505 u2 index = Bytes::get_native_u2(pc+1); | |
| 2506 | |
| 2507 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2508 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2509 | |
| 2510 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2511 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2512 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2513 handle_exception); | |
| 2514 cache = cp->entry_at(index); | |
| 2515 } | |
| 2516 | |
| 2517 istate->set_msg(call_method); | |
| 2518 | |
| 2519 // Special case of invokeinterface called for virtual method of | |
| 2520 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 2521 // This code isn't produced by javac, but could be produced by | |
| 2522 // another compliant java compiler. | |
|
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|
2523 if (cache->is_forced_virtual()) { |
|
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|
2524 Method* callee; |
| 0 | 2525 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
| 2526 if (cache->is_vfinal()) { | |
|
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2527 callee = cache->f2_as_vfinal_method(); |
|
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|
2528 // Profile 'special case of invokeinterface' final call. |
|
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|
2529 BI_PROFILE_UPDATE_FINALCALL(); |
| 0 | 2530 } else { |
|
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|
2531 // Get receiver. |
| 0 | 2532 int parms = cache->parameter_size(); |
|
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2533 // Same comments as invokevirtual apply here. |
|
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|
2534 oop rcvr = STACK_OBJECT(-parms); |
|
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|
2535 VERIFY_OOP(rcvr); |
|
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|
2536 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
|
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|
2537 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
|
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2538 // Profile 'special case of invokeinterface' virtual call. |
|
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|
2539 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
| 0 | 2540 } |
| 2541 istate->set_callee(callee); | |
| 2542 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2543 #ifdef VM_JVMTI | |
| 2544 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2545 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2546 } | |
| 2547 #endif /* VM_JVMTI */ | |
| 2548 istate->set_bcp_advance(5); | |
| 2549 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2550 } | |
| 2551 | |
| 2552 // this could definitely be cleaned up QQQ | |
|
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2553 Method* callee; |
|
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2554 Klass* iclass = cache->f1_as_klass(); |
|
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|
2555 // InstanceKlass* interface = (InstanceKlass*) iclass; |
| 0 | 2556 // get receiver |
| 2557 int parms = cache->parameter_size(); | |
| 2558 oop rcvr = STACK_OBJECT(-parms); | |
| 2559 CHECK_NULL(rcvr); | |
|
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2560 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
| 0 | 2561 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
| 2562 int i; | |
| 2563 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
| 2564 if (ki->interface_klass() == iclass) break; | |
| 2565 } | |
| 2566 // If the interface isn't found, this class doesn't implement this | |
| 2567 // interface. The link resolver checks this but only for the first | |
| 2568 // time this interface is called. | |
| 2569 if (i == int2->itable_length()) { | |
|
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|
2570 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap); |
| 0 | 2571 } |
|
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|
2572 int mindex = cache->f2_as_index(); |
| 0 | 2573 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
| 2574 callee = im[mindex].method(); | |
| 2575 if (callee == NULL) { | |
|
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|
2576 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), "", note_no_trap); |
| 0 | 2577 } |
| 2578 | |
|
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2579 // Profile virtual call. |
|
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|
2580 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
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|
2581 |
| 0 | 2582 istate->set_callee(callee); |
| 2583 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2584 #ifdef VM_JVMTI | |
| 2585 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2586 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2587 } | |
| 2588 #endif /* VM_JVMTI */ | |
| 2589 istate->set_bcp_advance(5); | |
| 2590 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2591 } | |
| 2592 | |
| 2593 CASE(_invokevirtual): | |
| 2594 CASE(_invokespecial): | |
| 2595 CASE(_invokestatic): { | |
| 2596 u2 index = Bytes::get_native_u2(pc+1); | |
| 2597 | |
| 2598 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2599 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2600 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2601 | |
| 2602 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2603 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2604 handle_exception); | |
| 2605 cache = cp->entry_at(index); | |
| 2606 } | |
| 2607 | |
| 2608 istate->set_msg(call_method); | |
| 2609 { | |
|
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|
2610 Method* callee; |
| 0 | 2611 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
| 2612 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
|
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|
2613 if (cache->is_vfinal()) { |
|
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|
2614 callee = cache->f2_as_vfinal_method(); |
|
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|
2615 // Profile final call. |
|
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|
2616 BI_PROFILE_UPDATE_FINALCALL(); |
|
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|
2617 } else { |
| 0 | 2618 // get receiver |
| 2619 int parms = cache->parameter_size(); | |
| 2620 // this works but needs a resourcemark and seems to create a vtable on every call: | |
|
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|
2621 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
| 0 | 2622 // |
| 2623 // this fails with an assert | |
|
6725
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|
2624 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
| 0 | 2625 // but this works |
|
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|
2626 oop rcvr = STACK_OBJECT(-parms); |
|
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|
2627 VERIFY_OOP(rcvr); |
|
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|
2628 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
| 0 | 2629 /* |
| 2630 Executing this code in java.lang.String: | |
| 2631 public String(char value[]) { | |
| 2632 this.count = value.length; | |
| 2633 this.value = (char[])value.clone(); | |
| 2634 } | |
| 2635 | |
|
6725
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|
2636 a find on rcvr->klass() reports: |
| 0 | 2637 {type array char}{type array class} |
| 2638 - klass: {other class} | |
| 2639 | |
|
6725
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|
2640 but using InstanceKlass::cast(STACK_OBJECT(-parms)->klass()) causes in assertion failure |
|
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|
2641 because rcvr->klass()->oop_is_instance() == 0 |
| 0 | 2642 However it seems to have a vtable in the right location. Huh? |
| 2643 | |
| 2644 */ | |
|
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|
2645 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
|
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2646 // Profile virtual call. |
|
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|
2647 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
| 0 | 2648 } |
| 2649 } else { | |
| 2650 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
| 2651 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
| 2652 } | |
|
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|
2653 callee = cache->f1_as_method(); |
|
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|
2654 |
|
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2655 // Profile call. |
|
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|
2656 BI_PROFILE_UPDATE_CALL(); |
| 0 | 2657 } |
| 2658 | |
| 2659 istate->set_callee(callee); | |
| 2660 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2661 #ifdef VM_JVMTI | |
| 2662 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2663 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2664 } | |
| 2665 #endif /* VM_JVMTI */ | |
| 2666 istate->set_bcp_advance(3); | |
| 2667 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2668 } | |
| 2669 } | |
| 2670 | |
| 2671 /* Allocate memory for a new java object. */ | |
| 2672 | |
| 2673 CASE(_newarray): { | |
| 2674 BasicType atype = (BasicType) *(pc+1); | |
| 2675 jint size = STACK_INT(-1); | |
| 2676 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
| 2677 handle_exception); | |
|
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|
2678 // Must prevent reordering of stores for object initialization |
|
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|
2679 // with stores that publish the new object. |
|
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|
2680 OrderAccess::storestore(); |
| 0 | 2681 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
| 2682 THREAD->set_vm_result(NULL); | |
| 2683 | |
| 2684 UPDATE_PC_AND_CONTINUE(2); | |
| 2685 } | |
| 2686 | |
| 2687 /* Throw an exception. */ | |
| 2688 | |
| 2689 CASE(_athrow): { | |
| 2690 oop except_oop = STACK_OBJECT(-1); | |
| 2691 CHECK_NULL(except_oop); | |
| 2692 // set pending_exception so we use common code | |
| 2693 THREAD->set_pending_exception(except_oop, NULL, 0); | |
| 2694 goto handle_exception; | |
| 2695 } | |
| 2696 | |
| 2697 /* goto and jsr. They are exactly the same except jsr pushes | |
| 2698 * the address of the next instruction first. | |
| 2699 */ | |
| 2700 | |
| 2701 CASE(_jsr): { | |
| 2702 /* push bytecode index on stack */ | |
| 2703 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
| 2704 MORE_STACK(1); | |
| 2705 /* FALL THROUGH */ | |
| 2706 } | |
| 2707 | |
| 2708 CASE(_goto): | |
| 2709 { | |
| 2710 int16_t offset = (int16_t)Bytes::get_Java_u2(pc + 1); | |
|
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|
2711 // Profile jump. |
|
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|
2712 BI_PROFILE_UPDATE_JUMP(); |
| 0 | 2713 address branch_pc = pc; |
| 2714 UPDATE_PC(offset); | |
| 2715 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2716 CONTINUE; | |
| 2717 } | |
| 2718 | |
| 2719 CASE(_jsr_w): { | |
| 2720 /* push return address on the stack */ | |
| 2721 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
| 2722 MORE_STACK(1); | |
| 2723 /* FALL THROUGH */ | |
| 2724 } | |
| 2725 | |
| 2726 CASE(_goto_w): | |
| 2727 { | |
| 2728 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
|
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|
2729 // Profile jump. |
|
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|
2730 BI_PROFILE_UPDATE_JUMP(); |
| 0 | 2731 address branch_pc = pc; |
| 2732 UPDATE_PC(offset); | |
| 2733 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2734 CONTINUE; | |
| 2735 } | |
| 2736 | |
| 2737 /* return from a jsr or jsr_w */ | |
| 2738 | |
| 2739 CASE(_ret): { | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2740 // Profile ret. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2741 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(pc[1])))); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2742 // Now, update the pc. |
| 0 | 2743 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); |
| 2744 UPDATE_PC_AND_CONTINUE(0); | |
| 2745 } | |
| 2746 | |
| 2747 /* debugger breakpoint */ | |
| 2748 | |
| 2749 CASE(_breakpoint): { | |
| 2750 Bytecodes::Code original_bytecode; | |
| 2751 DECACHE_STATE(); | |
| 2752 SET_LAST_JAVA_FRAME(); | |
| 2753 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
| 2754 METHOD, pc); | |
| 2755 RESET_LAST_JAVA_FRAME(); | |
| 2756 CACHE_STATE(); | |
| 2757 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 2758 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
| 2759 handle_exception); | |
| 2760 | |
| 2761 opcode = (jubyte)original_bytecode; | |
| 2762 goto opcode_switch; | |
| 2763 } | |
| 2764 | |
| 2765 DEFAULT: | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2766 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2767 Bytecodes::name((Bytecodes::Code)opcode))); |
| 0 | 2768 goto finish; |
| 2769 | |
| 2770 } /* switch(opc) */ | |
| 2771 | |
| 2772 | |
| 2773 #ifdef USELABELS | |
| 2774 check_for_exception: | |
| 2775 #endif | |
| 2776 { | |
| 2777 if (!THREAD->has_pending_exception()) { | |
| 2778 CONTINUE; | |
| 2779 } | |
| 2780 /* We will be gcsafe soon, so flush our state. */ | |
| 2781 DECACHE_PC(); | |
| 2782 goto handle_exception; | |
| 2783 } | |
| 2784 do_continue: ; | |
| 2785 | |
| 2786 } /* while (1) interpreter loop */ | |
| 2787 | |
| 2788 | |
| 2789 // An exception exists in the thread state see whether this activation can handle it | |
| 2790 handle_exception: { | |
| 2791 | |
| 2792 HandleMarkCleaner __hmc(THREAD); | |
| 2793 Handle except_oop(THREAD, THREAD->pending_exception()); | |
| 2794 // Prevent any subsequent HandleMarkCleaner in the VM | |
| 2795 // from freeing the except_oop handle. | |
| 2796 HandleMark __hm(THREAD); | |
| 2797 | |
| 2798 THREAD->clear_pending_exception(); | |
| 2799 assert(except_oop(), "No exception to process"); | |
| 2800 intptr_t continuation_bci; | |
| 2801 // expression stack is emptied | |
| 1509 | 2802 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
| 0 | 2803 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
| 2804 handle_exception); | |
| 2805 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2806 except_oop = THREAD->vm_result(); |
| 0 | 2807 THREAD->set_vm_result(NULL); |
| 2808 if (continuation_bci >= 0) { | |
| 2809 // Place exception on top of stack | |
| 2810 SET_STACK_OBJECT(except_oop(), 0); | |
| 2811 MORE_STACK(1); | |
| 2812 pc = METHOD->code_base() + continuation_bci; | |
| 2813 if (TraceExceptions) { | |
| 2814 ttyLocker ttyl; | |
| 2815 ResourceMark rm; | |
|
20644
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2816 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), p2i(except_oop())); |
| 0 | 2817 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
| 2818 tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT, | |
|
20644
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2819 (int)(istate->bcp() - METHOD->code_base()), |
|
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2820 (int)continuation_bci, p2i(THREAD)); |
| 0 | 2821 } |
| 2822 // for AbortVMOnException flag | |
| 2823 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2824 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2825 // Update profiling data. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2826 BI_PROFILE_ALIGN_TO_CURRENT_BCI(); |
| 0 | 2827 goto run; |
| 2828 } | |
| 2829 if (TraceExceptions) { | |
| 2830 ttyLocker ttyl; | |
| 2831 ResourceMark rm; | |
|
20644
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2832 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), p2i(except_oop())); |
| 0 | 2833 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
| 2834 tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT, | |
|
20644
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2835 (int)(istate->bcp() - METHOD->code_base()), |
|
327e7269f90d
8048169: Change 8037816 breaks HS build on PPC64 and CPP-Interpreter platforms
coleenp
parents:
20197
diff
changeset
|
2836 p2i(THREAD)); |
| 0 | 2837 } |
| 2838 // for AbortVMOnException flag | |
| 2839 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
| 2840 // No handler in this activation, unwind and try again | |
| 2841 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
| 2842 goto handle_return; | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2843 } // handle_exception: |
| 0 | 2844 |
| 2845 // Return from an interpreter invocation with the result of the interpretation | |
| 2846 // on the top of the Java Stack (or a pending exception) | |
| 2847 | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2848 handle_Pop_Frame: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2849 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2850 // We don't really do anything special here except we must be aware |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2851 // that we can get here without ever locking the method (if sync). |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2852 // Also we skip the notification of the exit. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2853 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2854 istate->set_msg(popping_frame); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2855 // Clear pending so while the pop is in process |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2856 // we don't start another one if a call_vm is done. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2857 THREAD->clr_pop_frame_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2858 // Let interpreter (only) see the we're in the process of popping a frame |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2859 THREAD->set_pop_frame_in_process(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2860 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2861 goto handle_return; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2862 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2863 } // handle_Pop_Frame |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2864 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2865 // ForceEarlyReturn ends a method, and returns to the caller with a return value |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2866 // given by the invoker of the early return. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2867 handle_Early_Return: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2868 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2869 istate->set_msg(early_return); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2870 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2871 // Clear expression stack. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2872 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2873 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2874 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2875 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2876 // Push the value to be returned. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2877 switch (istate->method()->result_type()) { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2878 case T_BOOLEAN: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2879 case T_SHORT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2880 case T_BYTE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2881 case T_CHAR: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2882 case T_INT: |
|
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2883 SET_STACK_INT(ts->earlyret_value().i, 0); |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2884 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2885 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2886 case T_LONG: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2887 SET_STACK_LONG(ts->earlyret_value().j, 1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2888 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2889 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2890 case T_FLOAT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2891 SET_STACK_FLOAT(ts->earlyret_value().f, 0); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2892 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2893 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2894 case T_DOUBLE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2895 SET_STACK_DOUBLE(ts->earlyret_value().d, 1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2896 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2897 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2898 case T_ARRAY: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2899 case T_OBJECT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2900 SET_STACK_OBJECT(ts->earlyret_oop(), 0); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2901 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2902 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2903 } |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2904 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2905 ts->clr_earlyret_value(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2906 ts->set_earlyret_oop(NULL); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2907 ts->clr_earlyret_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2908 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2909 // Fall through to handle_return. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2910 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2911 } // handle_Early_Return |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2912 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2913 handle_return: { |
|
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2914 // A storestore barrier is required to order initialization of |
|
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2915 // final fields with publishing the reference to the object that |
|
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2916 // holds the field. Without the barrier the value of final fields |
|
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2917 // can be observed to change. |
|
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2918 OrderAccess::storestore(); |
|
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2919 |
| 0 | 2920 DECACHE_STATE(); |
| 2921 | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2922 bool suppress_error = istate->msg() == popping_frame || istate->msg() == early_return; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2923 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
| 0 | 2924 Handle original_exception(THREAD, THREAD->pending_exception()); |
| 2925 Handle illegal_state_oop(THREAD, NULL); | |
| 2926 | |
| 2927 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
| 2928 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
| 2929 // isn't really allocated yet and so doesn't become live until later and | |
| 2930 // in unpredicatable places. Instead we must protect the places where we enter the | |
| 2931 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
| 2932 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
| 2933 // unfortunately isn't possible. | |
| 2934 | |
| 2935 THREAD->clear_pending_exception(); | |
| 2936 | |
| 2937 // | |
| 2938 // As far as we are concerned we have returned. If we have a pending exception | |
| 2939 // that will be returned as this invocation's result. However if we get any | |
| 2940 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
| 2941 // will be our final result (i.e. monitor exception trumps a pending exception). | |
| 2942 // | |
| 2943 | |
| 2944 // If we never locked the method (or really passed the point where we would have), | |
| 2945 // there is no need to unlock it (or look for other monitors), since that | |
| 2946 // could not have happened. | |
| 2947 | |
| 2948 if (THREAD->do_not_unlock()) { | |
| 2949 | |
| 2950 // Never locked, reset the flag now because obviously any caller must | |
| 2951 // have passed their point of locking for us to have gotten here. | |
| 2952 | |
| 2953 THREAD->clr_do_not_unlock(); | |
| 2954 } else { | |
| 2955 // At this point we consider that we have returned. We now check that the | |
| 2956 // locks were properly block structured. If we find that they were not | |
| 2957 // used properly we will return with an illegal monitor exception. | |
| 2958 // The exception is checked by the caller not the callee since this | |
| 2959 // checking is considered to be part of the invocation and therefore | |
| 2960 // in the callers scope (JVM spec 8.13). | |
| 2961 // | |
| 2962 // Another weird thing to watch for is if the method was locked | |
| 2963 // recursively and then not exited properly. This means we must | |
| 2964 // examine all the entries in reverse time(and stack) order and | |
| 2965 // unlock as we find them. If we find the method monitor before | |
| 2966 // we are at the initial entry then we should throw an exception. | |
| 2967 // It is not clear the template based interpreter does this | |
| 2968 // correctly | |
| 2969 | |
| 2970 BasicObjectLock* base = istate->monitor_base(); | |
| 2971 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
| 2972 bool method_unlock_needed = METHOD->is_synchronized(); | |
| 2973 // We know the initial monitor was used for the method don't check that | |
| 2974 // slot in the loop | |
| 2975 if (method_unlock_needed) base--; | |
| 2976 | |
| 2977 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
| 2978 while (end < base) { | |
| 2979 oop lockee = end->obj(); | |
| 2980 if (lockee != NULL) { | |
| 2981 BasicLock* lock = end->lock(); | |
| 2982 markOop header = lock->displaced_header(); | |
| 2983 end->set_obj(NULL); | |
|
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2984 |
|
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|
2985 if (!lockee->mark()->has_bias_pattern()) { |
|
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2986 // If it isn't recursive we either must swap old header or call the runtime |
|
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2987 if (header != NULL) { |
|
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2988 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
|
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|
2989 // restore object for the slow case |
|
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2990 end->set_obj(lockee); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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2991 { |
|
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|
2992 // Prevent any HandleMarkCleaner from freeing our live handles |
|
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2993 HandleMark __hm(THREAD); |
|
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2994 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
|
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|
2995 } |
| 0 | 2996 } |
| 2997 } | |
| 2998 } | |
| 2999 // One error is plenty | |
| 3000 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 3001 { | |
| 3002 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3003 HandleMark __hm(THREAD); | |
| 3004 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 3005 } | |
| 3006 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 3007 illegal_state_oop = THREAD->pending_exception(); | |
| 3008 THREAD->clear_pending_exception(); | |
| 3009 } | |
| 3010 } | |
| 3011 end++; | |
| 3012 } | |
| 3013 // Unlock the method if needed | |
| 3014 if (method_unlock_needed) { | |
| 3015 if (base->obj() == NULL) { | |
| 3016 // The method is already unlocked this is not good. | |
| 3017 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 3018 { | |
| 3019 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3020 HandleMark __hm(THREAD); | |
| 3021 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 3022 } | |
| 3023 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 3024 illegal_state_oop = THREAD->pending_exception(); | |
| 3025 THREAD->clear_pending_exception(); | |
| 3026 } | |
| 3027 } else { | |
| 3028 // | |
| 3029 // The initial monitor is always used for the method | |
| 3030 // However if that slot is no longer the oop for the method it was unlocked | |
| 3031 // and reused by something that wasn't unlocked! | |
| 3032 // | |
| 3033 // deopt can come in with rcvr dead because c2 knows | |
| 3034 // its value is preserved in the monitor. So we can't use locals[0] at all | |
| 3035 // and must use first monitor slot. | |
| 3036 // | |
| 3037 oop rcvr = base->obj(); | |
| 3038 if (rcvr == NULL) { | |
| 3039 if (!suppress_error) { | |
|
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|
3040 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), "", note_nullCheck_trap); |
| 0 | 3041 illegal_state_oop = THREAD->pending_exception(); |
| 3042 THREAD->clear_pending_exception(); | |
| 3043 } | |
|
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|
3044 } else if (UseHeavyMonitors) { |
|
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|
3045 { |
|
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3046 // Prevent any HandleMarkCleaner from freeing our live handles. |
|
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3047 HandleMark __hm(THREAD); |
|
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3048 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
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3049 } |
|
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|
3050 if (THREAD->has_pending_exception()) { |
|
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|
3051 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
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|
3052 THREAD->clear_pending_exception(); |
|
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|
3053 } |
| 0 | 3054 } else { |
| 3055 BasicLock* lock = base->lock(); | |
| 3056 markOop header = lock->displaced_header(); | |
| 3057 base->set_obj(NULL); | |
|
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|
3058 |
|
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|
3059 if (!rcvr->mark()->has_bias_pattern()) { |
|
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|
3060 base->set_obj(NULL); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3061 // If it isn't recursive we either must swap old header or call the runtime |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3062 if (header != NULL) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3063 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
|
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|
3064 // restore object for the slow case |
|
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|
3065 base->set_obj(rcvr); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3066 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3067 // Prevent any HandleMarkCleaner from freeing our live handles |
|
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|
3068 HandleMark __hm(THREAD); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3069 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3070 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3071 if (THREAD->has_pending_exception()) { |
|
48d3d0eb193b
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|
3072 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
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|
3073 THREAD->clear_pending_exception(); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3074 } |
| 0 | 3075 } |
| 3076 } | |
| 3077 } | |
| 3078 } | |
| 3079 } | |
| 3080 } | |
| 3081 } | |
|
14395
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|
3082 // Clear the do_not_unlock flag now. |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3083 THREAD->clr_do_not_unlock(); |
| 0 | 3084 |
| 3085 // | |
| 3086 // Notify jvmti/jvmdi | |
| 3087 // | |
| 3088 // NOTE: we do not notify a method_exit if we have a pending exception, | |
| 3089 // including an exception we generate for unlocking checks. In the former | |
| 3090 // case, JVMDI has already been notified by our call for the exception handler | |
| 3091 // and in both cases as far as JVMDI is concerned we have already returned. | |
| 3092 // If we notify it again JVMDI will be all confused about how many frames | |
| 3093 // are still on the stack (4340444). | |
| 3094 // | |
| 3095 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
| 3096 // method_exit events whenever we leave an activation unless it was done | |
| 3097 // for popframe. This is nothing like jvmdi. However we are passing the | |
| 3098 // tests at the moment (apparently because they are jvmdi based) so rather | |
| 3099 // than change this code and possibly fail tests we will leave it alone | |
| 3100 // (with this note) in anticipation of changing the vm and the tests | |
| 3101 // simultaneously. | |
| 3102 | |
| 3103 | |
| 3104 // | |
| 3105 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
| 3106 | |
| 3107 | |
| 3108 | |
| 3109 #ifdef VM_JVMTI | |
| 3110 if (_jvmti_interp_events) { | |
| 3111 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 3112 // entry/exit events are sent for that thread to track stack depth. | |
| 3113 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
| 3114 { | |
| 3115 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3116 HandleMark __hm(THREAD); | |
| 3117 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
| 3118 } | |
| 3119 } | |
| 3120 } | |
| 3121 #endif /* VM_JVMTI */ | |
| 3122 | |
| 3123 // | |
| 3124 // See if we are returning any exception | |
| 3125 // A pending exception that was pending prior to a possible popping frame | |
| 3126 // overrides the popping frame. | |
| 3127 // | |
|
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14417
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|
3128 assert(!suppress_error || (suppress_error && illegal_state_oop() == NULL), "Error was not suppressed"); |
| 0 | 3129 if (illegal_state_oop() != NULL || original_exception() != NULL) { |
|
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|
3130 // Inform the frame manager we have no result. |
| 0 | 3131 istate->set_msg(throwing_exception); |
| 3132 if (illegal_state_oop() != NULL) | |
| 3133 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
| 3134 else | |
| 3135 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
| 3136 UPDATE_PC_AND_RETURN(0); | |
| 3137 } | |
| 3138 | |
| 3139 if (istate->msg() == popping_frame) { | |
| 3140 // Make it simpler on the assembly code and set the message for the frame pop. | |
| 3141 // returns | |
| 3142 if (istate->prev() == NULL) { | |
| 3143 // We must be returning to a deoptimized frame (because popframe only happens between | |
| 3144 // two interpreted frames). We need to save the current arguments in C heap so that | |
| 3145 // the deoptimized frame when it restarts can copy the arguments to its expression | |
| 3146 // stack and re-execute the call. We also have to notify deoptimization that this | |
| 605 | 3147 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
| 0 | 3148 // java expression stack. Yuck. |
| 3149 // | |
| 3150 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
| 3151 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
| 3152 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
| 3153 } | |
|
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14399
diff
changeset
|
3154 } else { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
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14399
diff
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|
3155 istate->set_msg(return_from_method); |
| 0 | 3156 } |
|
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126ea7725993
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1552
diff
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|
3157 |
|
126ea7725993
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1552
diff
changeset
|
3158 // Normal return |
|
126ea7725993
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1552
diff
changeset
|
3159 // Advance the pc and return to frame manager |
|
126ea7725993
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1552
diff
changeset
|
3160 UPDATE_PC_AND_RETURN(1); |
| 0 | 3161 } /* handle_return: */ |
| 3162 | |
| 3163 // This is really a fatal error return | |
| 3164 | |
| 3165 finish: | |
| 3166 DECACHE_TOS(); | |
| 3167 DECACHE_PC(); | |
| 3168 | |
| 3169 return; | |
| 3170 } | |
| 3171 | |
| 3172 /* | |
| 3173 * All the code following this point is only produced once and is not present | |
| 3174 * in the JVMTI version of the interpreter | |
| 3175 */ | |
| 3176 | |
| 3177 #ifndef VM_JVMTI | |
| 3178 | |
| 3179 // This constructor should only be used to contruct the object to signal | |
| 3180 // interpreter initialization. All other instances should be created by | |
| 3181 // the frame manager. | |
| 3182 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
| 3183 if (msg != initialize) ShouldNotReachHere(); | |
| 3184 _msg = msg; | |
| 3185 _self_link = this; | |
| 3186 _prev_link = NULL; | |
| 3187 } | |
| 3188 | |
| 3189 // Inline static functions for Java Stack and Local manipulation | |
| 3190 | |
| 3191 // The implementations are platform dependent. We have to worry about alignment | |
| 3192 // issues on some machines which can change on the same platform depending on | |
| 3193 // whether it is an LP64 machine also. | |
| 3194 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
| 3195 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
| 3196 } | |
| 3197 | |
| 3198 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
| 3199 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3200 } | |
| 3201 | |
| 3202 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
| 3203 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3204 } | |
| 3205 | |
| 3206 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
|
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|
3207 return cast_to_oop(tos [Interpreter::expr_index_at(-offset)]); |
| 0 | 3208 } |
| 3209 | |
| 3210 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
| 3211 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
| 3212 } | |
| 3213 | |
| 3214 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
| 3215 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
| 3216 } | |
| 3217 | |
| 3218 // only used for value types | |
| 3219 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
| 3220 int offset) { | |
| 3221 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3222 } | |
| 3223 | |
| 3224 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
| 3225 int offset) { | |
| 3226 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3227 } | |
| 3228 | |
| 3229 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
| 3230 int offset) { | |
| 3231 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3232 } | |
| 3233 | |
| 3234 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
| 3235 int offset) { | |
| 3236 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3237 } | |
| 3238 | |
| 3239 // needs to be platform dep for the 32 bit platforms. | |
| 3240 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
| 3241 int offset) { | |
| 3242 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
| 3243 } | |
| 3244 | |
| 3245 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
| 3246 address addr, int offset) { | |
| 3247 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
| 3248 ((VMJavaVal64*)addr)->d); | |
| 3249 } | |
| 3250 | |
| 3251 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
| 3252 int offset) { | |
| 3253 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3254 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
| 3255 } | |
| 3256 | |
| 3257 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
| 3258 address addr, int offset) { | |
| 3259 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3260 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
| 3261 ((VMJavaVal64*)addr)->l; | |
| 3262 } | |
| 3263 | |
| 3264 // Locals | |
| 3265 | |
| 3266 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
| 3267 return (address)locals[Interpreter::local_index_at(-offset)]; | |
| 3268 } | |
| 3269 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
| 3270 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
| 3271 } | |
| 3272 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
| 3273 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
| 3274 } | |
| 3275 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
|
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8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
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14420
diff
changeset
|
3276 return cast_to_oop(locals[Interpreter::local_index_at(-offset)]); |
| 0 | 3277 } |
| 3278 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
| 3279 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
| 3280 } | |
| 3281 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
| 3282 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
| 3283 } | |
| 3284 | |
| 3285 // Returns the address of locals value. | |
| 3286 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
| 3287 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3288 } | |
| 3289 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
| 3290 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3291 } | |
| 3292 | |
| 3293 // Used for local value or returnAddress | |
| 3294 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
| 3295 address value, int offset) { | |
| 3296 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3297 } | |
| 3298 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
| 3299 jint value, int offset) { | |
| 3300 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3301 } | |
| 3302 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
| 3303 jfloat value, int offset) { | |
| 3304 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3305 } | |
| 3306 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
| 3307 oop value, int offset) { | |
| 3308 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3309 } | |
| 3310 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
| 3311 jdouble value, int offset) { | |
| 3312 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
| 3313 } | |
| 3314 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
| 3315 jlong value, int offset) { | |
| 3316 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
| 3317 } | |
| 3318 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
| 3319 address addr, int offset) { | |
| 3320 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
| 3321 } | |
| 3322 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
| 3323 address addr, int offset) { | |
| 3324 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
| 3325 } | |
| 3326 | |
| 3327 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
| 3328 intptr_t* locals, int locals_offset) { | |
| 3329 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
| 3330 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
| 3331 } | |
| 3332 | |
| 3333 | |
| 3334 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
| 3335 int to_offset) { | |
| 3336 tos[Interpreter::expr_index_at(-to_offset)] = | |
| 3337 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
| 3338 } | |
| 3339 | |
| 3340 void BytecodeInterpreter::dup(intptr_t *tos) { | |
| 3341 copy_stack_slot(tos, -1, 0); | |
| 3342 } | |
| 3343 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
| 3344 copy_stack_slot(tos, -2, 0); | |
| 3345 copy_stack_slot(tos, -1, 1); | |
| 3346 } | |
| 3347 | |
| 3348 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
| 3349 /* insert top word two down */ | |
| 3350 copy_stack_slot(tos, -1, 0); | |
| 3351 copy_stack_slot(tos, -2, -1); | |
| 3352 copy_stack_slot(tos, 0, -2); | |
| 3353 } | |
| 3354 | |
| 3355 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
| 3356 /* insert top word three down */ | |
| 3357 copy_stack_slot(tos, -1, 0); | |
| 3358 copy_stack_slot(tos, -2, -1); | |
| 3359 copy_stack_slot(tos, -3, -2); | |
| 3360 copy_stack_slot(tos, 0, -3); | |
| 3361 } | |
| 3362 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
| 3363 /* insert top 2 slots three down */ | |
| 3364 copy_stack_slot(tos, -1, 1); | |
| 3365 copy_stack_slot(tos, -2, 0); | |
| 3366 copy_stack_slot(tos, -3, -1); | |
| 3367 copy_stack_slot(tos, 1, -2); | |
| 3368 copy_stack_slot(tos, 0, -3); | |
| 3369 } | |
| 3370 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
| 3371 /* insert top 2 slots four down */ | |
| 3372 copy_stack_slot(tos, -1, 1); | |
| 3373 copy_stack_slot(tos, -2, 0); | |
| 3374 copy_stack_slot(tos, -3, -1); | |
| 3375 copy_stack_slot(tos, -4, -2); | |
| 3376 copy_stack_slot(tos, 1, -3); | |
| 3377 copy_stack_slot(tos, 0, -4); | |
| 3378 } | |
| 3379 | |
| 3380 | |
| 3381 void BytecodeInterpreter::swap(intptr_t *tos) { | |
| 3382 // swap top two elements | |
| 3383 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
| 3384 // Copy -2 entry to -1 | |
| 3385 copy_stack_slot(tos, -2, -1); | |
| 3386 // Store saved -1 entry into -2 | |
| 3387 tos[Interpreter::expr_index_at(2)] = val; | |
| 3388 } | |
| 3389 // -------------------------------------------------------------------------------- | |
| 3390 // Non-product code | |
| 3391 #ifndef PRODUCT | |
| 3392 | |
| 3393 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
| 3394 switch (msg) { | |
| 3395 case BytecodeInterpreter::no_request: return("no_request"); | |
| 3396 case BytecodeInterpreter::initialize: return("initialize"); | |
| 3397 // status message to C++ interpreter | |
| 3398 case BytecodeInterpreter::method_entry: return("method_entry"); | |
| 3399 case BytecodeInterpreter::method_resume: return("method_resume"); | |
| 3400 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
| 3401 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
| 3402 // requests to frame manager from C++ interpreter | |
| 3403 case BytecodeInterpreter::call_method: return("call_method"); | |
| 3404 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
| 3405 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
| 3406 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
| 3407 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
| 3408 case BytecodeInterpreter::do_osr: return("do_osr"); | |
| 3409 // deopt | |
| 3410 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
| 3411 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
| 3412 default: return("BAD MSG"); | |
| 3413 } | |
| 3414 } | |
| 3415 void | |
| 3416 BytecodeInterpreter::print() { | |
| 3417 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
| 3418 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
| 3419 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
| 3420 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
| 3421 { | |
| 3422 ResourceMark rm; | |
| 3423 char *method_name = _method->name_and_sig_as_C_string(); | |
| 3424 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
| 3425 } | |
| 3426 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
| 3427 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
| 3428 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
| 3429 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
| 3430 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
| 3431 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
| 3432 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
| 3433 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
| 3434 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
|
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|
3435 tty->print_cr("native_mirror: " INTPTR_FORMAT, (uintptr_t) this->_oop_temp); |
| 0 | 3436 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); |
| 3437 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
| 3438 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
| 3439 #ifdef SPARC | |
| 3440 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
| 3441 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
| 3442 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
| 3443 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
| 3444 #endif | |
| 7994 | 3445 #if !defined(ZERO) |
| 0 | 3446 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
| 7994 | 3447 #endif // !ZERO |
| 0 | 3448 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
| 3449 } | |
| 3450 | |
| 3451 extern "C" { | |
|
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diff
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|
3452 void PI(uintptr_t arg) { |
|
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diff
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|
3453 ((BytecodeInterpreter*)arg)->print(); |
|
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diff
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|
3454 } |
| 0 | 3455 } |
| 3456 #endif // PRODUCT | |
| 3457 | |
| 3458 #endif // JVMTI | |
| 3459 #endif // CC_INTERP |