Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 17801:2444afebe07b
8035392: cppInterpreter: fix message of NPE
Reviewed-by: kvn
Contributed-by: axel.siebenborn@sap.com
| author | goetz |
|---|---|
| date | Thu, 20 Feb 2014 10:48:57 +0100 |
| parents | a9becfeecd1b |
| children | d3f14809b051 4ca6dc0799b6 ce8f6bb717c9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2013, 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" | |
| 44 #include "runtime/sharedRuntime.hpp" | |
| 45 #include "runtime/threadCritical.hpp" | |
| 46 #include "utilities/exceptions.hpp" | |
| 47 #ifdef TARGET_OS_ARCH_linux_x86 | |
| 48 # include "orderAccess_linux_x86.inline.hpp" | |
| 49 #endif | |
| 50 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 51 # include "orderAccess_linux_sparc.inline.hpp" | |
| 52 #endif | |
| 53 #ifdef TARGET_OS_ARCH_linux_zero | |
| 54 # include "orderAccess_linux_zero.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 57 # include "orderAccess_solaris_x86.inline.hpp" | |
| 58 #endif | |
| 59 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 60 # include "orderAccess_solaris_sparc.inline.hpp" | |
| 61 #endif | |
| 62 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 63 # include "orderAccess_windows_x86.inline.hpp" | |
| 64 #endif | |
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65 #ifdef TARGET_OS_ARCH_linux_arm |
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66 # include "orderAccess_linux_arm.inline.hpp" |
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67 #endif |
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68 #ifdef TARGET_OS_ARCH_linux_ppc |
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69 # include "orderAccess_linux_ppc.inline.hpp" |
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70 #endif |
| 14411 | 71 #ifdef TARGET_OS_ARCH_aix_ppc |
| 72 # include "orderAccess_aix_ppc.inline.hpp" | |
| 73 #endif | |
| 3960 | 74 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 75 # include "orderAccess_bsd_x86.inline.hpp" | |
| 76 #endif | |
| 77 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 78 # include "orderAccess_bsd_zero.inline.hpp" | |
| 79 #endif | |
| 1972 | 80 |
| 0 | 81 |
| 82 // no precompiled headers | |
| 83 #ifdef CC_INTERP | |
| 84 | |
| 85 /* | |
| 86 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
| 87 * rather -then a switch statement. This improves performance because it | |
| 88 * gives us the oportunity to have the instructions that calculate the | |
| 89 * next opcode to jump to be intermixed with the rest of the instructions | |
| 90 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
| 91 */ | |
| 92 #undef USELABELS | |
| 93 #ifdef __GNUC__ | |
| 94 /* | |
| 95 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
| 96 don't use the computed goto approach. | |
| 97 */ | |
| 98 #ifndef ASSERT | |
| 99 #define USELABELS | |
| 100 #endif | |
| 101 #endif | |
| 102 | |
| 103 #undef CASE | |
| 104 #ifdef USELABELS | |
| 105 #define CASE(opcode) opc ## opcode | |
| 106 #define DEFAULT opc_default | |
| 107 #else | |
| 108 #define CASE(opcode) case Bytecodes:: opcode | |
| 109 #define DEFAULT default | |
| 110 #endif | |
| 111 | |
| 112 /* | |
| 113 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
| 114 * opcode before going back to the top of the while loop, rather then having | |
| 115 * the top of the while loop handle it. This provides a better opportunity | |
| 116 * for instruction scheduling. Some compilers just do this prefetch | |
| 117 * automatically. Some actually end up with worse performance if you | |
| 118 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
| 119 */ | |
| 120 #undef PREFETCH_OPCCODE | |
| 121 #define PREFETCH_OPCCODE | |
| 122 | |
| 123 /* | |
| 124 Interpreter safepoint: it is expected that the interpreter will have no live | |
| 125 handles of its own creation live at an interpreter safepoint. Therefore we | |
| 126 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
| 127 since the JavaCalls::call_helper invocation that initiated the chain. | |
| 128 There really shouldn't be any handles remaining to trash but this is cheap | |
| 129 in relation to a safepoint. | |
| 130 */ | |
| 131 #define SAFEPOINT \ | |
| 132 if ( SafepointSynchronize::is_synchronizing()) { \ | |
| 133 { \ | |
| 134 /* zap freed handles rather than GC'ing them */ \ | |
| 135 HandleMarkCleaner __hmc(THREAD); \ | |
| 136 } \ | |
| 137 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
| 138 } | |
| 139 | |
| 140 /* | |
| 141 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
| 142 * the interpreter loop. Should really be a CALL_VM but there | |
| 143 * is no entry point to do the transition to vm so we just | |
| 144 * do it by hand here. | |
| 145 */ | |
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146 #define VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
| 0 | 147 DECACHE_STATE(); \ |
| 148 SET_LAST_JAVA_FRAME(); \ | |
| 149 { \ | |
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150 InterpreterRuntime::note_a_trap(THREAD, istate->method(), BCI()); \ |
| 0 | 151 ThreadInVMfromJava trans(THREAD); \ |
| 152 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
| 153 } \ | |
| 154 RESET_LAST_JAVA_FRAME(); \ | |
| 155 CACHE_STATE(); | |
| 156 | |
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157 // Normal throw of a java error. |
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158 #define VM_JAVA_ERROR(name, msg, note_a_trap) \ |
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159 VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
| 0 | 160 goto handle_exception; |
| 161 | |
| 162 #ifdef PRODUCT | |
| 163 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
| 164 #else | |
| 165 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
| 166 { \ | |
| 167 BytecodeCounter::_counter_value++; \ | |
| 168 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
| 169 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
| 170 if (TraceBytecodes) { \ | |
| 171 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
| 172 topOfStack[Interpreter::expr_index_at(1)], \ | |
| 173 topOfStack[Interpreter::expr_index_at(2)]), \ | |
| 174 handle_exception); \ | |
| 175 } \ | |
| 176 } | |
| 177 #endif | |
| 178 | |
| 179 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
| 180 #ifdef VM_JVMTI | |
| 181 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
| 182 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
| 183 breakpoint opcode to get inserted at the current PC to allow the | |
| 184 debugger to coalesce single-step events. | |
| 185 | |
| 186 As a result if we call at_single_stepping_point() we refetch opcode | |
| 187 to get the current opcode. This will override any other prefetching | |
| 188 that might have occurred. | |
| 189 */ | |
| 190 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
| 191 { \ | |
| 192 if (_jvmti_interp_events) { \ | |
| 193 if (JvmtiExport::should_post_single_step()) { \ | |
| 194 DECACHE_STATE(); \ | |
| 195 SET_LAST_JAVA_FRAME(); \ | |
| 196 ThreadInVMfromJava trans(THREAD); \ | |
| 197 JvmtiExport::at_single_stepping_point(THREAD, \ | |
| 198 istate->method(), \ | |
| 199 pc); \ | |
| 200 RESET_LAST_JAVA_FRAME(); \ | |
| 201 CACHE_STATE(); \ | |
| 202 if (THREAD->pop_frame_pending() && \ | |
| 203 !THREAD->pop_frame_in_process()) { \ | |
| 204 goto handle_Pop_Frame; \ | |
| 205 } \ | |
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206 if (THREAD->jvmti_thread_state() && \ |
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207 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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208 goto handle_Early_Return; \ |
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209 } \ |
| 0 | 210 opcode = *pc; \ |
| 211 } \ | |
| 212 } \ | |
| 213 } | |
| 214 #else | |
| 215 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
| 216 #endif | |
| 217 | |
| 218 /* | |
| 219 * CONTINUE - Macro for executing the next opcode. | |
| 220 */ | |
| 221 #undef CONTINUE | |
| 222 #ifdef USELABELS | |
| 223 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
| 224 // initialization (which is is the initialization of the table pointer...) | |
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225 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
| 0 | 226 #define CONTINUE { \ |
| 227 opcode = *pc; \ | |
| 228 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 229 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 230 DISPATCH(opcode); \ | |
| 231 } | |
| 232 #else | |
| 233 #ifdef PREFETCH_OPCCODE | |
| 234 #define CONTINUE { \ | |
| 235 opcode = *pc; \ | |
| 236 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 237 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 238 continue; \ | |
| 239 } | |
| 240 #else | |
| 241 #define CONTINUE { \ | |
| 242 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 243 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 244 continue; \ | |
| 245 } | |
| 246 #endif | |
| 247 #endif | |
| 248 | |
| 249 | |
| 250 #define UPDATE_PC(opsize) {pc += opsize; } | |
| 251 /* | |
| 252 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
| 253 */ | |
| 254 #undef UPDATE_PC_AND_TOS | |
| 255 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
| 256 {pc += opsize; MORE_STACK(stack); } | |
| 257 | |
| 258 /* | |
| 259 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
| 260 * and executing the next opcode. It's somewhat similar to the combination | |
| 261 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
| 262 */ | |
| 263 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
| 264 #ifdef USELABELS | |
| 265 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 266 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 267 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 268 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 269 DISPATCH(opcode); \ | |
| 270 } | |
| 271 | |
| 272 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 273 pc += opsize; opcode = *pc; \ | |
| 274 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 275 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 276 DISPATCH(opcode); \ | |
| 277 } | |
| 278 #else | |
| 279 #ifdef PREFETCH_OPCCODE | |
| 280 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 281 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 282 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 283 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 284 goto do_continue; \ | |
| 285 } | |
| 286 | |
| 287 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 288 pc += opsize; opcode = *pc; \ | |
| 289 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 290 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 291 goto do_continue; \ | |
| 292 } | |
| 293 #else | |
| 294 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 295 pc += opsize; MORE_STACK(stack); \ | |
| 296 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 297 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 298 goto do_continue; \ | |
| 299 } | |
| 300 | |
| 301 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 302 pc += opsize; \ | |
| 303 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 304 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 305 goto do_continue; \ | |
| 306 } | |
| 307 #endif /* PREFETCH_OPCCODE */ | |
| 308 #endif /* USELABELS */ | |
| 309 | |
| 310 // About to call a new method, update the save the adjusted pc and return to frame manager | |
| 311 #define UPDATE_PC_AND_RETURN(opsize) \ | |
| 312 DECACHE_TOS(); \ | |
| 313 istate->set_bcp(pc+opsize); \ | |
| 314 return; | |
| 315 | |
| 316 | |
| 317 #define METHOD istate->method() | |
| 10233 | 318 #define GET_METHOD_COUNTERS(res) \ |
| 319 res = METHOD->method_counters(); \ | |
| 320 if (res == NULL) { \ | |
| 321 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
| 322 } | |
| 323 | |
| 0 | 324 #define OSR_REQUEST(res, branch_pc) \ |
| 325 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
| 326 /* | |
| 327 * For those opcodes that need to have a GC point on a backwards branch | |
| 328 */ | |
| 329 | |
| 330 // Backedge counting is kind of strange. The asm interpreter will increment | |
| 331 // the backedge counter as a separate counter but it does it's comparisons | |
| 332 // to the sum (scaled) of invocation counter and backedge count to make | |
| 333 // a decision. Seems kind of odd to sum them together like that | |
| 334 | |
| 335 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
| 336 | |
| 337 | |
| 338 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
| 339 if ((skip) <= 0) { \ | |
| 10233 | 340 MethodCounters* mcs; \ |
| 341 GET_METHOD_COUNTERS(mcs); \ | |
| 1078 | 342 if (UseLoopCounter) { \ |
| 0 | 343 bool do_OSR = UseOnStackReplacement; \ |
| 10233 | 344 mcs->backedge_counter()->increment(); \ |
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345 if (ProfileInterpreter) { \ |
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346 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); \ |
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347 /* Check for overflow against MDO count. */ \ |
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348 do_OSR = do_OSR \ |
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349 && (mdo_last_branch_taken_count >= (uint)InvocationCounter::InterpreterBackwardBranchLimit)\ |
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350 /* When ProfileInterpreter is on, the backedge_count comes */ \ |
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351 /* from the methodDataOop, which value does not get reset on */ \ |
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352 /* the call to frequency_counter_overflow(). To avoid */ \ |
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353 /* excessive calls to the overflow routine while the method is */ \ |
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354 /* being compiled, add a second test to make sure the overflow */ \ |
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355 /* function is called only once every overflow_frequency. */ \ |
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356 && (!(mdo_last_branch_taken_count & 1023)); \ |
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357 } else { \ |
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358 /* check for overflow of backedge counter */ \ |
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359 do_OSR = do_OSR \ |
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360 && mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter()); \ |
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361 } \ |
| 0 | 362 if (do_OSR) { \ |
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363 nmethod* osr_nmethod; \ |
| 0 | 364 OSR_REQUEST(osr_nmethod, branch_pc); \ |
| 365 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
|
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366 intptr_t* buf; \ |
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367 /* Call OSR migration with last java frame only, no checks. */ \ |
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368 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
| 0 | 369 istate->set_msg(do_osr); \ |
| 370 istate->set_osr_buf((address)buf); \ | |
| 371 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
| 372 return; \ | |
| 373 } \ | |
| 374 } \ | |
| 375 } /* UseCompiler ... */ \ | |
| 376 SAFEPOINT; \ | |
| 377 } | |
| 378 | |
| 379 /* | |
| 380 * For those opcodes that need to have a GC point on a backwards branch | |
| 381 */ | |
| 382 | |
| 383 /* | |
| 384 * Macros for caching and flushing the interpreter state. Some local | |
| 385 * variables need to be flushed out to the frame before we do certain | |
| 386 * things (like pushing frames or becomming gc safe) and some need to | |
| 387 * be recached later (like after popping a frame). We could use one | |
| 388 * macro to cache or decache everything, but this would be less then | |
| 389 * optimal because we don't always need to cache or decache everything | |
| 390 * because some things we know are already cached or decached. | |
| 391 */ | |
| 392 #undef DECACHE_TOS | |
| 393 #undef CACHE_TOS | |
| 394 #undef CACHE_PREV_TOS | |
| 395 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
| 396 | |
| 397 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
| 398 | |
| 399 #undef DECACHE_PC | |
| 400 #undef CACHE_PC | |
| 401 #define DECACHE_PC() istate->set_bcp(pc); | |
| 402 #define CACHE_PC() pc = istate->bcp(); | |
| 403 #define CACHE_CP() cp = istate->constants(); | |
| 404 #define CACHE_LOCALS() locals = istate->locals(); | |
| 405 #undef CACHE_FRAME | |
| 406 #define CACHE_FRAME() | |
| 407 | |
|
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408 // BCI() returns the current bytecode-index. |
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409 #undef BCI |
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410 #define BCI() ((int)(intptr_t)(pc - (intptr_t)istate->method()->code_base())) |
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411 |
| 0 | 412 /* |
| 413 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
| 414 * passed is a null ref. | |
| 415 * On some architectures/platforms it should be possible to do this implicitly | |
| 416 */ | |
| 417 #undef CHECK_NULL | |
| 17801 | 418 #define CHECK_NULL(obj_) \ |
| 419 if ((obj_) == NULL) { \ | |
| 420 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), NULL, note_nullCheck_trap); \ | |
| 421 } \ | |
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422 VERIFY_OOP(obj_) |
| 0 | 423 |
| 424 #define VMdoubleConstZero() 0.0 | |
| 425 #define VMdoubleConstOne() 1.0 | |
| 426 #define VMlongConstZero() (max_jlong-max_jlong) | |
| 427 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
| 428 | |
| 429 /* | |
| 430 * Alignment | |
| 431 */ | |
| 432 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
| 433 | |
| 434 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
| 435 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
| 436 | |
| 437 // Reload interpreter state after calling the VM or a possible GC | |
| 438 #define CACHE_STATE() \ | |
| 439 CACHE_TOS(); \ | |
| 440 CACHE_PC(); \ | |
| 441 CACHE_CP(); \ | |
| 442 CACHE_LOCALS(); | |
| 443 | |
|
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444 // Call the VM with last java frame only. |
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445 #define CALL_VM_NAKED_LJF(func) \ |
|
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446 DECACHE_STATE(); \ |
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447 SET_LAST_JAVA_FRAME(); \ |
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448 func; \ |
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449 RESET_LAST_JAVA_FRAME(); \ |
|
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450 CACHE_STATE(); |
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451 |
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452 // Call the VM. Don't check for pending exceptions. |
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453 #define CALL_VM_NOCHECK(func) \ |
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454 CALL_VM_NAKED_LJF(func) \ |
|
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455 if (THREAD->pop_frame_pending() && \ |
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456 !THREAD->pop_frame_in_process()) { \ |
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457 goto handle_Pop_Frame; \ |
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458 } \ |
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459 if (THREAD->jvmti_thread_state() && \ |
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460 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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461 goto handle_Early_Return; \ |
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462 } |
| 0 | 463 |
| 464 // Call the VM and check for pending exceptions | |
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465 #define CALL_VM(func, label) { \ |
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466 CALL_VM_NOCHECK(func); \ |
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467 if (THREAD->has_pending_exception()) goto label; \ |
| 0 | 468 } |
| 469 | |
| 470 /* | |
| 471 * BytecodeInterpreter::run(interpreterState istate) | |
| 472 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
| 473 * | |
| 474 * The real deal. This is where byte codes actually get interpreted. | |
| 475 * Basically it's a big while loop that iterates until we return from | |
| 476 * the method passed in. | |
| 477 * | |
| 478 * The runWithChecks is used if JVMTI is enabled. | |
| 479 * | |
| 480 */ | |
| 481 #if defined(VM_JVMTI) | |
| 482 void | |
| 483 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
| 484 #else | |
| 485 void | |
| 486 BytecodeInterpreter::run(interpreterState istate) { | |
| 487 #endif | |
| 488 | |
| 489 // In order to simplify some tests based on switches set at runtime | |
| 490 // we invoke the interpreter a single time after switches are enabled | |
| 491 // and set simpler to to test variables rather than method calls or complex | |
| 492 // boolean expressions. | |
| 493 | |
| 494 static int initialized = 0; | |
| 495 static int checkit = 0; | |
| 496 static intptr_t* c_addr = NULL; | |
| 497 static intptr_t c_value; | |
| 498 | |
| 499 if (checkit && *c_addr != c_value) { | |
| 500 os::breakpoint(); | |
| 501 } | |
| 502 #ifdef VM_JVMTI | |
| 503 static bool _jvmti_interp_events = 0; | |
| 504 #endif | |
| 505 | |
| 506 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
| 507 | |
| 508 #ifdef ASSERT | |
| 509 if (istate->_msg != initialize) { | |
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510 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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511 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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512 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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513 // for the old JSR292 implementation. |
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514 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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515 // methodOopDesc::extra_stack_entries() because it is computed in |
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516 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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517 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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518 // account for extra_stack_entries() anymore because at the time when it is called |
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519 // EnableInvokeDynamic was already set to false. |
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520 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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521 // switched off because of the wrong classes. |
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522 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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523 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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524 } else { |
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525 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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526 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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527 + 1), "bad stack limit"); |
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528 } |
| 1729 | 529 #ifndef SHARK |
| 530 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
| 531 #endif // !SHARK | |
| 0 | 532 } |
| 533 // Verify linkages. | |
| 534 interpreterState l = istate; | |
| 535 do { | |
| 536 assert(l == l->_self_link, "bad link"); | |
| 537 l = l->_prev_link; | |
| 538 } while (l != NULL); | |
| 539 // Screwups with stack management usually cause us to overwrite istate | |
| 540 // save a copy so we can verify it. | |
| 541 interpreterState orig = istate; | |
| 542 #endif | |
| 543 | |
| 544 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
| 545 register address pc = istate->bcp(); | |
| 546 register jubyte opcode; | |
| 547 register intptr_t* locals = istate->locals(); | |
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548 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
| 0 | 549 #ifdef LOTS_OF_REGS |
| 550 register JavaThread* THREAD = istate->thread(); | |
| 551 #else | |
| 552 #undef THREAD | |
| 553 #define THREAD istate->thread() | |
| 554 #endif | |
| 555 | |
| 556 #ifdef USELABELS | |
| 557 const static void* const opclabels_data[256] = { | |
| 558 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
| 559 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
| 560 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
| 561 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
| 562 | |
| 563 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
| 564 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
| 565 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
| 566 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
| 567 | |
| 568 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
| 569 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
| 570 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
| 571 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
| 572 | |
| 573 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
| 574 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
| 575 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
| 576 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
| 577 | |
| 578 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
| 579 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
| 580 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
| 581 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
| 582 | |
| 583 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
| 584 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
| 585 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
| 586 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
| 587 | |
| 588 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
| 589 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
| 590 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
| 591 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
| 592 | |
| 593 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
| 594 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
| 595 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
| 596 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
| 597 | |
| 598 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
| 599 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
| 600 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
| 601 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
| 602 | |
| 603 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
| 604 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
| 605 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
| 606 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
| 607 | |
| 608 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
| 609 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
| 610 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
| 611 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
| 612 | |
| 613 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
| 614 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
| 2480 | 615 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
| 0 | 616 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
| 617 | |
| 618 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
| 619 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
| 123 | 620 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
| 621 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 622 | |
| 623 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 0 | 624 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 625 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 626 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 627 | |
| 628 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 2480 | 629 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
| 6926 | 630 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
| 0 | 631 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 632 | |
| 633 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 634 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 635 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 636 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
| 637 }; | |
| 638 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
| 639 #endif /* USELABELS */ | |
| 640 | |
| 641 #ifdef ASSERT | |
| 642 // this will trigger a VERIFY_OOP on entry | |
| 643 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
| 644 oop rcvr = LOCALS_OBJECT(0); | |
|
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645 VERIFY_OOP(rcvr); |
| 0 | 646 } |
| 647 #endif | |
| 648 // #define HACK | |
| 649 #ifdef HACK | |
| 650 bool interesting = false; | |
| 651 #endif // HACK | |
| 652 | |
| 653 /* QQQ this should be a stack method so we don't know actual direction */ | |
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654 guarantee(istate->msg() == initialize || |
| 0 | 655 topOfStack >= istate->stack_limit() && |
| 656 topOfStack < istate->stack_base(), | |
| 657 "Stack top out of range"); | |
| 658 | |
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659 #ifdef CC_INTERP_PROFILE |
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660 // MethodData's last branch taken count. |
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661 uint mdo_last_branch_taken_count = 0; |
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662 #else |
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663 const uint mdo_last_branch_taken_count = 0; |
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664 #endif |
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665 |
| 0 | 666 switch (istate->msg()) { |
| 667 case initialize: { | |
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668 if (initialized++) ShouldNotReachHere(); // Only one initialize call. |
| 0 | 669 _compiling = (UseCompiler || CountCompiledCalls); |
| 670 #ifdef VM_JVMTI | |
| 671 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
| 672 #endif | |
| 673 return; | |
| 674 } | |
| 675 break; | |
| 676 case method_entry: { | |
| 677 THREAD->set_do_not_unlock(); | |
| 678 // count invocations | |
| 679 assert(initialized, "Interpreter not initialized"); | |
| 680 if (_compiling) { | |
| 10233 | 681 MethodCounters* mcs; |
| 682 GET_METHOD_COUNTERS(mcs); | |
| 0 | 683 if (ProfileInterpreter) { |
| 10233 | 684 METHOD->increment_interpreter_invocation_count(THREAD); |
| 0 | 685 } |
| 10233 | 686 mcs->invocation_counter()->increment(); |
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687 if (mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter())) { |
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688 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
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689 // We no longer retry on a counter overflow. |
| 0 | 690 } |
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691 // Get or create profile data. Check for pending (async) exceptions. |
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692 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
| 0 | 693 SAFEPOINT; |
| 694 } | |
| 695 | |
| 696 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 697 // initialize | |
| 698 os::breakpoint(); | |
| 699 } | |
| 700 | |
| 701 #ifdef HACK | |
| 702 { | |
| 703 ResourceMark rm; | |
| 704 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 705 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 706 tty->print_cr("entering: depth %d bci: %d", | |
| 707 (istate->_stack_base - istate->_stack), | |
| 708 istate->_bcp - istate->_method->code_base()); | |
| 709 interesting = true; | |
| 710 } | |
| 711 } | |
| 712 #endif // HACK | |
| 713 | |
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714 // Lock method if synchronized. |
| 0 | 715 if (METHOD->is_synchronized()) { |
|
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716 // oop rcvr = locals[0].j.r; |
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717 oop rcvr; |
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718 if (METHOD->is_static()) { |
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719 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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720 } else { |
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721 rcvr = LOCALS_OBJECT(0); |
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722 VERIFY_OOP(rcvr); |
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723 } |
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724 // The initial monitor is ours for the taking. |
|
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725 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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726 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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727 mon->set_obj(rcvr); |
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728 bool success = false; |
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729 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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730 markOop mark = rcvr->mark(); |
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731 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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732 // Implies UseBiasedLocking. |
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733 if (mark->has_bias_pattern()) { |
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734 uintptr_t thread_ident; |
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735 uintptr_t anticipated_bias_locking_value; |
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736 thread_ident = (uintptr_t)istate->thread(); |
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737 anticipated_bias_locking_value = |
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738 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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739 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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740 |
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741 if (anticipated_bias_locking_value == 0) { |
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742 // Already biased towards this thread, nothing to do. |
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743 if (PrintBiasedLockingStatistics) { |
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744 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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745 } |
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746 success = true; |
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747 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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748 // Try to revoke bias. |
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749 markOop header = rcvr->klass()->prototype_header(); |
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750 if (hash != markOopDesc::no_hash) { |
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751 header = header->copy_set_hash(hash); |
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752 } |
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753 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
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754 if (PrintBiasedLockingStatistics) |
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755 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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756 } |
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757 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
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758 // Try to rebias. |
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759 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
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760 if (hash != markOopDesc::no_hash) { |
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761 new_header = new_header->copy_set_hash(hash); |
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762 } |
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763 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
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764 if (PrintBiasedLockingStatistics) { |
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765 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
| 0 | 766 } |
| 767 } else { | |
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768 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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769 } |
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770 success = true; |
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771 } else { |
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772 // Try to bias towards thread in case object is anonymously biased. |
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773 markOop header = (markOop) ((uintptr_t) mark & |
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774 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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775 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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776 if (hash != markOopDesc::no_hash) { |
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777 header = header->copy_set_hash(hash); |
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778 } |
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779 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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780 // Debugging hint. |
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781 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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782 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
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783 if (PrintBiasedLockingStatistics) { |
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|
784 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
|
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|
785 } |
|
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786 } else { |
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787 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
|
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788 } |
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789 success = true; |
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790 } |
|
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791 } |
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792 |
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793 // Traditional lightweight locking. |
|
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794 if (!success) { |
|
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795 markOop displaced = rcvr->mark()->set_unlocked(); |
|
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796 mon->lock()->set_displaced_header(displaced); |
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797 bool call_vm = UseHeavyMonitors; |
|
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798 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
|
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799 // Is it simple recursive case? |
|
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800 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
|
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801 mon->lock()->set_displaced_header(NULL); |
|
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802 } else { |
|
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803 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
| 0 | 804 } |
| 805 } | |
|
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806 } |
| 0 | 807 } |
| 808 THREAD->clr_do_not_unlock(); | |
| 809 | |
| 810 // Notify jvmti | |
| 811 #ifdef VM_JVMTI | |
| 812 if (_jvmti_interp_events) { | |
| 813 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 814 // entry/exit events are sent for that thread to track stack depth. | |
| 815 if (THREAD->is_interp_only_mode()) { | |
| 816 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
| 817 handle_exception); | |
| 818 } | |
| 819 } | |
| 820 #endif /* VM_JVMTI */ | |
| 821 | |
| 822 goto run; | |
| 823 } | |
| 824 | |
| 825 case popping_frame: { | |
| 826 // returned from a java call to pop the frame, restart the call | |
| 827 // clear the message so we don't confuse ourselves later | |
| 828 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
| 829 istate->set_msg(no_request); | |
|
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830 if (_compiling) { |
|
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831 // Set MDX back to the ProfileData of the invoke bytecode that will be |
|
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832 // restarted. |
|
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833 SET_MDX(NULL); |
|
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834 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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835 } |
| 0 | 836 THREAD->clr_pop_frame_in_process(); |
| 837 goto run; | |
| 838 } | |
| 839 | |
| 840 case method_resume: { | |
| 841 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 842 // resume | |
| 843 os::breakpoint(); | |
| 844 } | |
| 845 #ifdef HACK | |
| 846 { | |
| 847 ResourceMark rm; | |
| 848 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 849 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 850 tty->print_cr("resume: depth %d bci: %d", | |
| 851 (istate->_stack_base - istate->_stack) , | |
| 852 istate->_bcp - istate->_method->code_base()); | |
| 853 interesting = true; | |
| 854 } | |
| 855 } | |
| 856 #endif // HACK | |
| 857 // returned from a java call, continue executing. | |
| 858 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
| 859 goto handle_Pop_Frame; | |
| 860 } | |
|
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861 if (THREAD->jvmti_thread_state() && |
|
bfd9d884693d
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|
862 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
|
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863 goto handle_Early_Return; |
|
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864 } |
| 0 | 865 |
| 866 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 867 // Update the pc by the saved amount of the invoke bytecode size | |
| 868 UPDATE_PC(istate->bcp_advance()); | |
|
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869 |
|
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870 if (_compiling) { |
|
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871 // Get or create profile data. Check for pending (async) exceptions. |
|
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872 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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|
873 } |
| 0 | 874 goto run; |
| 875 } | |
| 876 | |
| 877 case deopt_resume2: { | |
| 878 // Returned from an opcode that will reexecute. Deopt was | |
| 879 // a result of a PopFrame request. | |
| 880 // | |
|
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881 |
|
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882 if (_compiling) { |
|
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883 // Get or create profile data. Check for pending (async) exceptions. |
|
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884 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
|
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|
885 } |
| 0 | 886 goto run; |
| 887 } | |
| 888 | |
| 889 case deopt_resume: { | |
| 890 // Returned from an opcode that has completed. The stack has | |
| 891 // the result all we need to do is skip across the bytecode | |
| 892 // and continue (assuming there is no exception pending) | |
| 893 // | |
| 894 // compute continuation length | |
| 895 // | |
| 896 // Note: it is possible to deopt at a return_register_finalizer opcode | |
| 897 // because this requires entering the vm to do the registering. While the | |
| 898 // opcode is complete we can't advance because there are no more opcodes | |
| 899 // much like trying to deopt at a poll return. In that has we simply | |
| 900 // get out of here | |
| 901 // | |
| 2142 | 902 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
| 0 | 903 // this will do the right thing even if an exception is pending. |
| 904 goto handle_return; | |
| 905 } | |
| 2142 | 906 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
| 0 | 907 if (THREAD->has_pending_exception()) goto handle_exception; |
|
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|
908 |
|
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|
909 if (_compiling) { |
|
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|
910 // Get or create profile data. Check for pending (async) exceptions. |
|
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|
911 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
|
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|
912 } |
| 0 | 913 goto run; |
| 914 } | |
| 915 case got_monitors: { | |
| 916 // continue locking now that we have a monitor to use | |
| 917 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
| 918 oop lockee = STACK_OBJECT(-1); | |
|
1681
126ea7725993
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|
919 VERIFY_OOP(lockee); |
| 0 | 920 // derefing's lockee ought to provoke implicit null check |
| 921 // find a free monitor | |
| 922 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
| 923 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
| 924 entry->set_obj(lockee); | |
|
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|
925 bool success = false; |
|
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|
926 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
|
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|
927 |
|
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|
928 markOop mark = lockee->mark(); |
|
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|
929 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
|
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|
930 // implies UseBiasedLocking |
|
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|
931 if (mark->has_bias_pattern()) { |
|
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|
932 uintptr_t thread_ident; |
|
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|
933 uintptr_t anticipated_bias_locking_value; |
|
48d3d0eb193b
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|
934 thread_ident = (uintptr_t)istate->thread(); |
|
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|
935 anticipated_bias_locking_value = |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
936 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
|
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|
937 ~((uintptr_t) markOopDesc::age_mask_in_place); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
938 |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
939 if (anticipated_bias_locking_value == 0) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
940 // already biased towards this thread, nothing to do |
|
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|
941 if (PrintBiasedLockingStatistics) { |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
942 (* BiasedLocking::biased_lock_entry_count_addr())++; |
|
48d3d0eb193b
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diff
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|
943 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
944 success = true; |
|
48d3d0eb193b
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|
945 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
946 // try revoke bias |
|
48d3d0eb193b
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diff
changeset
|
947 markOop header = lockee->klass()->prototype_header(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
948 if (hash != markOopDesc::no_hash) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
949 header = header->copy_set_hash(hash); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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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 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
952 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
953 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
954 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
955 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
956 } 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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changeset
|
957 // try rebias |
|
48d3d0eb193b
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changeset
|
958 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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|
959 if (hash != markOopDesc::no_hash) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
960 new_header = new_header->copy_set_hash(hash); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
961 } |
|
48d3d0eb193b
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goetz
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changeset
|
962 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
|
963 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
964 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
|
48d3d0eb193b
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diff
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|
965 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
966 } else { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
967 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
968 } |
|
48d3d0eb193b
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|
969 success = true; |
| 0 | 970 } else { |
|
14395
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|
971 // try to bias towards thread in case object is anonymously biased |
|
48d3d0eb193b
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changeset
|
972 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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973 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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974 if (hash != markOopDesc::no_hash) { |
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975 header = header->copy_set_hash(hash); |
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976 } |
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977 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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978 // debugging hint |
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979 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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980 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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981 if (PrintBiasedLockingStatistics) { |
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982 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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983 } |
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984 } else { |
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985 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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986 } |
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987 success = true; |
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988 } |
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989 } |
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990 |
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991 // traditional lightweight locking |
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992 if (!success) { |
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993 markOop displaced = lockee->mark()->set_unlocked(); |
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994 entry->lock()->set_displaced_header(displaced); |
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995 bool call_vm = UseHeavyMonitors; |
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996 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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997 // Is it simple recursive case? |
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998 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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999 entry->lock()->set_displaced_header(NULL); |
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1000 } else { |
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1001 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1002 } |
| 0 | 1003 } |
| 1004 } | |
| 1005 UPDATE_PC_AND_TOS(1, -1); | |
| 1006 goto run; | |
| 1007 } | |
| 1008 default: { | |
| 1009 fatal("Unexpected message from frame manager"); | |
| 1010 } | |
| 1011 } | |
| 1012 | |
| 1013 run: | |
| 1014 | |
| 1015 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
| 1016 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 1017 #ifdef PREFETCH_OPCCODE | |
| 1018 opcode = *pc; /* prefetch first opcode */ | |
| 1019 #endif | |
| 1020 | |
| 1021 #ifndef USELABELS | |
| 1022 while (1) | |
| 1023 #endif | |
| 1024 { | |
| 1025 #ifndef PREFETCH_OPCCODE | |
| 1026 opcode = *pc; | |
| 1027 #endif | |
| 1028 // Seems like this happens twice per opcode. At worst this is only | |
| 1029 // need at entry to the loop. | |
| 1030 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 1031 /* Using this labels avoids double breakpoints when quickening and | |
| 1032 * when returing from transition frames. | |
| 1033 */ | |
| 1034 opcode_switch: | |
| 1035 assert(istate == orig, "Corrupted istate"); | |
| 1036 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
| 1037 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
| 1038 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
| 1039 | |
| 1040 #ifdef USELABELS | |
| 1041 DISPATCH(opcode); | |
| 1042 #else | |
| 1043 switch (opcode) | |
| 1044 #endif | |
| 1045 { | |
| 1046 CASE(_nop): | |
| 1047 UPDATE_PC_AND_CONTINUE(1); | |
| 1048 | |
| 1049 /* Push miscellaneous constants onto the stack. */ | |
| 1050 | |
| 1051 CASE(_aconst_null): | |
| 1052 SET_STACK_OBJECT(NULL, 0); | |
| 1053 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1054 | |
| 1055 #undef OPC_CONST_n | |
| 1056 #define OPC_CONST_n(opcode, const_type, value) \ | |
| 1057 CASE(opcode): \ | |
| 1058 SET_STACK_ ## const_type(value, 0); \ | |
| 1059 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1060 | |
| 1061 OPC_CONST_n(_iconst_m1, INT, -1); | |
| 1062 OPC_CONST_n(_iconst_0, INT, 0); | |
| 1063 OPC_CONST_n(_iconst_1, INT, 1); | |
| 1064 OPC_CONST_n(_iconst_2, INT, 2); | |
| 1065 OPC_CONST_n(_iconst_3, INT, 3); | |
| 1066 OPC_CONST_n(_iconst_4, INT, 4); | |
| 1067 OPC_CONST_n(_iconst_5, INT, 5); | |
| 1068 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
| 1069 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
| 1070 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
| 1071 | |
| 1072 #undef OPC_CONST2_n | |
| 1073 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
| 1074 CASE(_##opcname): \ | |
| 1075 { \ | |
| 1076 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
| 1077 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1078 } | |
| 1079 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
| 1080 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
| 1081 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
| 1082 OPC_CONST2_n(lconst_1, One, long, LONG); | |
| 1083 | |
| 1084 /* Load constant from constant pool: */ | |
| 1085 | |
| 1086 /* Push a 1-byte signed integer value onto the stack. */ | |
| 1087 CASE(_bipush): | |
| 1088 SET_STACK_INT((jbyte)(pc[1]), 0); | |
| 1089 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1090 | |
| 1091 /* Push a 2-byte signed integer constant onto the stack. */ | |
| 1092 CASE(_sipush): | |
| 1093 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
| 1094 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 1095 | |
| 1096 /* load from local variable */ | |
| 1097 | |
| 1098 CASE(_aload): | |
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1099 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
| 0 | 1100 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
| 1101 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1102 | |
| 1103 CASE(_iload): | |
| 1104 CASE(_fload): | |
| 1105 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
| 1106 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1107 | |
| 1108 CASE(_lload): | |
| 1109 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
| 1110 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1111 | |
| 1112 CASE(_dload): | |
| 1113 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
| 1114 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1115 | |
| 1116 #undef OPC_LOAD_n | |
| 1117 #define OPC_LOAD_n(num) \ | |
| 1118 CASE(_aload_##num): \ | |
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1119 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
| 0 | 1120 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
| 1121 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1122 \ | |
| 1123 CASE(_iload_##num): \ | |
| 1124 CASE(_fload_##num): \ | |
| 1125 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
| 1126 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1127 \ | |
| 1128 CASE(_lload_##num): \ | |
| 1129 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
| 1130 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1131 CASE(_dload_##num): \ | |
| 1132 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
| 1133 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1134 | |
| 1135 OPC_LOAD_n(0); | |
| 1136 OPC_LOAD_n(1); | |
| 1137 OPC_LOAD_n(2); | |
| 1138 OPC_LOAD_n(3); | |
| 1139 | |
| 1140 /* store to a local variable */ | |
| 1141 | |
| 1142 CASE(_astore): | |
| 1143 astore(topOfStack, -1, locals, pc[1]); | |
| 1144 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1145 | |
| 1146 CASE(_istore): | |
| 1147 CASE(_fstore): | |
| 1148 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
| 1149 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1150 | |
| 1151 CASE(_lstore): | |
| 1152 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
| 1153 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1154 | |
| 1155 CASE(_dstore): | |
| 1156 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
| 1157 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1158 | |
| 1159 CASE(_wide): { | |
| 1160 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
| 1161 | |
| 1162 opcode = pc[1]; | |
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1163 |
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1164 // Wide and it's sub-bytecode are counted as separate instructions. If we |
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1165 // don't account for this here, the bytecode trace skips the next bytecode. |
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1166 DO_UPDATE_INSTRUCTION_COUNT(opcode); |
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1167 |
| 0 | 1168 switch(opcode) { |
| 1169 case Bytecodes::_aload: | |
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1170 VERIFY_OOP(LOCALS_OBJECT(reg)); |
| 0 | 1171 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
| 1172 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1173 | |
| 1174 case Bytecodes::_iload: | |
| 1175 case Bytecodes::_fload: | |
| 1176 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
| 1177 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1178 | |
| 1179 case Bytecodes::_lload: | |
| 1180 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1181 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1182 | |
| 1183 case Bytecodes::_dload: | |
| 1184 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1185 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1186 | |
| 1187 case Bytecodes::_astore: | |
| 1188 astore(topOfStack, -1, locals, reg); | |
| 1189 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1190 | |
| 1191 case Bytecodes::_istore: | |
| 1192 case Bytecodes::_fstore: | |
| 1193 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
| 1194 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1195 | |
| 1196 case Bytecodes::_lstore: | |
| 1197 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
| 1198 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1199 | |
| 1200 case Bytecodes::_dstore: | |
| 1201 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
| 1202 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1203 | |
| 1204 case Bytecodes::_iinc: { | |
| 1205 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
| 1206 // Be nice to see what this generates.... QQQ | |
| 1207 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
| 1208 UPDATE_PC_AND_CONTINUE(6); | |
| 1209 } | |
| 1210 case Bytecodes::_ret: | |
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1211 // Profile ret. |
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1212 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(reg)))); |
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1213 // Now, update the pc. |
| 0 | 1214 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); |
| 1215 UPDATE_PC_AND_CONTINUE(0); | |
| 1216 default: | |
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1217 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode", note_no_trap); |
| 0 | 1218 } |
| 1219 } | |
| 1220 | |
| 1221 | |
| 1222 #undef OPC_STORE_n | |
| 1223 #define OPC_STORE_n(num) \ | |
| 1224 CASE(_astore_##num): \ | |
| 1225 astore(topOfStack, -1, locals, num); \ | |
| 1226 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1227 CASE(_istore_##num): \ | |
| 1228 CASE(_fstore_##num): \ | |
| 1229 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
| 1230 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1231 | |
| 1232 OPC_STORE_n(0); | |
| 1233 OPC_STORE_n(1); | |
| 1234 OPC_STORE_n(2); | |
| 1235 OPC_STORE_n(3); | |
| 1236 | |
| 1237 #undef OPC_DSTORE_n | |
| 1238 #define OPC_DSTORE_n(num) \ | |
| 1239 CASE(_dstore_##num): \ | |
| 1240 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
| 1241 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1242 CASE(_lstore_##num): \ | |
| 1243 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
| 1244 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1245 | |
| 1246 OPC_DSTORE_n(0); | |
| 1247 OPC_DSTORE_n(1); | |
| 1248 OPC_DSTORE_n(2); | |
| 1249 OPC_DSTORE_n(3); | |
| 1250 | |
| 1251 /* stack pop, dup, and insert opcodes */ | |
| 1252 | |
| 1253 | |
| 1254 CASE(_pop): /* Discard the top item on the stack */ | |
| 1255 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1256 | |
| 1257 | |
| 1258 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
| 1259 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1260 | |
| 1261 | |
| 1262 CASE(_dup): /* Duplicate the top item on the stack */ | |
| 1263 dup(topOfStack); | |
| 1264 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1265 | |
| 1266 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
| 1267 dup2(topOfStack); | |
| 1268 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1269 | |
| 1270 CASE(_dup_x1): /* insert top word two down */ | |
| 1271 dup_x1(topOfStack); | |
| 1272 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1273 | |
| 1274 CASE(_dup_x2): /* insert top word three down */ | |
| 1275 dup_x2(topOfStack); | |
| 1276 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1277 | |
| 1278 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
| 1279 dup2_x1(topOfStack); | |
| 1280 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1281 | |
| 1282 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
| 1283 dup2_x2(topOfStack); | |
| 1284 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1285 | |
| 1286 CASE(_swap): { /* swap top two elements on the stack */ | |
| 1287 swap(topOfStack); | |
| 1288 UPDATE_PC_AND_CONTINUE(1); | |
| 1289 } | |
| 1290 | |
| 1291 /* Perform various binary integer operations */ | |
| 1292 | |
| 1293 #undef OPC_INT_BINARY | |
| 1294 #define OPC_INT_BINARY(opcname, opname, test) \ | |
| 1295 CASE(_i##opcname): \ | |
| 1296 if (test && (STACK_INT(-1) == 0)) { \ | |
| 1297 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1298 "/ by zero", note_div0Check_trap); \ |
| 0 | 1299 } \ |
| 1300 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1301 STACK_INT(-1)), \ | |
| 1302 -2); \ | |
| 1303 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1304 CASE(_l##opcname): \ | |
| 1305 { \ | |
| 1306 if (test) { \ | |
| 1307 jlong l1 = STACK_LONG(-1); \ | |
| 1308 if (VMlongEqz(l1)) { \ | |
| 1309 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1310 "/ by long zero", note_div0Check_trap); \ |
| 0 | 1311 } \ |
| 1312 } \ | |
| 1313 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
| 1314 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
| 1315 STACK_LONG(-1)), \ | |
| 1316 -3); \ | |
| 1317 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1318 } | |
| 1319 | |
| 1320 OPC_INT_BINARY(add, Add, 0); | |
| 1321 OPC_INT_BINARY(sub, Sub, 0); | |
| 1322 OPC_INT_BINARY(mul, Mul, 0); | |
| 1323 OPC_INT_BINARY(and, And, 0); | |
| 1324 OPC_INT_BINARY(or, Or, 0); | |
| 1325 OPC_INT_BINARY(xor, Xor, 0); | |
| 1326 OPC_INT_BINARY(div, Div, 1); | |
| 1327 OPC_INT_BINARY(rem, Rem, 1); | |
| 1328 | |
| 1329 | |
| 1330 /* Perform various binary floating number operations */ | |
| 1331 /* On some machine/platforms/compilers div zero check can be implicit */ | |
| 1332 | |
| 1333 #undef OPC_FLOAT_BINARY | |
| 1334 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
| 1335 CASE(_d##opcname): { \ | |
| 1336 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
| 1337 STACK_DOUBLE(-1)), \ | |
| 1338 -3); \ | |
| 1339 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1340 } \ | |
| 1341 CASE(_f##opcname): \ | |
| 1342 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
| 1343 STACK_FLOAT(-1)), \ | |
| 1344 -2); \ | |
| 1345 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1346 | |
| 1347 | |
| 1348 OPC_FLOAT_BINARY(add, Add); | |
| 1349 OPC_FLOAT_BINARY(sub, Sub); | |
| 1350 OPC_FLOAT_BINARY(mul, Mul); | |
| 1351 OPC_FLOAT_BINARY(div, Div); | |
| 1352 OPC_FLOAT_BINARY(rem, Rem); | |
| 1353 | |
| 1354 /* Shift operations | |
| 1355 * Shift left int and long: ishl, lshl | |
| 1356 * Logical shift right int and long w/zero extension: iushr, lushr | |
| 1357 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
| 1358 */ | |
| 1359 | |
| 1360 #undef OPC_SHIFT_BINARY | |
| 1361 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
| 1362 CASE(_i##opcname): \ | |
| 1363 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1364 STACK_INT(-1)), \ | |
| 1365 -2); \ | |
| 1366 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1367 CASE(_l##opcname): \ | |
| 1368 { \ | |
| 1369 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
| 1370 STACK_INT(-1)), \ | |
| 1371 -2); \ | |
| 1372 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1373 } | |
| 1374 | |
| 1375 OPC_SHIFT_BINARY(shl, Shl); | |
| 1376 OPC_SHIFT_BINARY(shr, Shr); | |
| 1377 OPC_SHIFT_BINARY(ushr, Ushr); | |
| 1378 | |
| 1379 /* Increment local variable by constant */ | |
| 1380 CASE(_iinc): | |
| 1381 { | |
| 1382 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
| 1383 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
| 1384 UPDATE_PC_AND_CONTINUE(3); | |
| 1385 } | |
| 1386 | |
| 1387 /* negate the value on the top of the stack */ | |
| 1388 | |
| 1389 CASE(_ineg): | |
| 1390 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
| 1391 UPDATE_PC_AND_CONTINUE(1); | |
| 1392 | |
| 1393 CASE(_fneg): | |
| 1394 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
| 1395 UPDATE_PC_AND_CONTINUE(1); | |
| 1396 | |
| 1397 CASE(_lneg): | |
| 1398 { | |
| 1399 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
| 1400 UPDATE_PC_AND_CONTINUE(1); | |
| 1401 } | |
| 1402 | |
| 1403 CASE(_dneg): | |
| 1404 { | |
| 1405 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
| 1406 UPDATE_PC_AND_CONTINUE(1); | |
| 1407 } | |
| 1408 | |
| 1409 /* Conversion operations */ | |
| 1410 | |
| 1411 CASE(_i2f): /* convert top of stack int to float */ | |
| 1412 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
| 1413 UPDATE_PC_AND_CONTINUE(1); | |
| 1414 | |
| 1415 CASE(_i2l): /* convert top of stack int to long */ | |
| 1416 { | |
| 1417 // this is ugly QQQ | |
| 1418 jlong r = VMint2Long(STACK_INT(-1)); | |
| 1419 MORE_STACK(-1); // Pop | |
| 1420 SET_STACK_LONG(r, 1); | |
| 1421 | |
| 1422 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1423 } | |
| 1424 | |
| 1425 CASE(_i2d): /* convert top of stack int to double */ | |
| 1426 { | |
| 1427 // this is ugly QQQ (why cast to jlong?? ) | |
| 1428 jdouble r = (jlong)STACK_INT(-1); | |
| 1429 MORE_STACK(-1); // Pop | |
| 1430 SET_STACK_DOUBLE(r, 1); | |
| 1431 | |
| 1432 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1433 } | |
| 1434 | |
| 1435 CASE(_l2i): /* convert top of stack long to int */ | |
| 1436 { | |
| 1437 jint r = VMlong2Int(STACK_LONG(-1)); | |
| 1438 MORE_STACK(-2); // Pop | |
| 1439 SET_STACK_INT(r, 0); | |
| 1440 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1441 } | |
| 1442 | |
| 1443 CASE(_l2f): /* convert top of stack long to float */ | |
| 1444 { | |
| 1445 jlong r = STACK_LONG(-1); | |
| 1446 MORE_STACK(-2); // Pop | |
| 1447 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
| 1448 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1449 } | |
| 1450 | |
| 1451 CASE(_l2d): /* convert top of stack long to double */ | |
| 1452 { | |
| 1453 jlong r = STACK_LONG(-1); | |
| 1454 MORE_STACK(-2); // Pop | |
| 1455 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
| 1456 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1457 } | |
| 1458 | |
| 1459 CASE(_f2i): /* Convert top of stack float to int */ | |
| 1460 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
| 1461 UPDATE_PC_AND_CONTINUE(1); | |
| 1462 | |
| 1463 CASE(_f2l): /* convert top of stack float to long */ | |
| 1464 { | |
| 1465 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
| 1466 MORE_STACK(-1); // POP | |
| 1467 SET_STACK_LONG(r, 1); | |
| 1468 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1469 } | |
| 1470 | |
| 1471 CASE(_f2d): /* convert top of stack float to double */ | |
| 1472 { | |
| 1473 jfloat f; | |
| 1474 jdouble r; | |
| 1475 f = STACK_FLOAT(-1); | |
| 1476 r = (jdouble) f; | |
| 1477 MORE_STACK(-1); // POP | |
| 1478 SET_STACK_DOUBLE(r, 1); | |
| 1479 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1480 } | |
| 1481 | |
| 1482 CASE(_d2i): /* convert top of stack double to int */ | |
| 1483 { | |
| 1484 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
| 1485 MORE_STACK(-2); | |
| 1486 SET_STACK_INT(r1, 0); | |
| 1487 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1488 } | |
| 1489 | |
| 1490 CASE(_d2f): /* convert top of stack double to float */ | |
| 1491 { | |
| 1492 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
| 1493 MORE_STACK(-2); | |
| 1494 SET_STACK_FLOAT(r1, 0); | |
| 1495 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1496 } | |
| 1497 | |
| 1498 CASE(_d2l): /* convert top of stack double to long */ | |
| 1499 { | |
| 1500 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
| 1501 MORE_STACK(-2); | |
| 1502 SET_STACK_LONG(r1, 1); | |
| 1503 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1504 } | |
| 1505 | |
| 1506 CASE(_i2b): | |
| 1507 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
| 1508 UPDATE_PC_AND_CONTINUE(1); | |
| 1509 | |
| 1510 CASE(_i2c): | |
| 1511 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
| 1512 UPDATE_PC_AND_CONTINUE(1); | |
| 1513 | |
| 1514 CASE(_i2s): | |
| 1515 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
| 1516 UPDATE_PC_AND_CONTINUE(1); | |
| 1517 | |
| 1518 /* comparison operators */ | |
| 1519 | |
| 1520 | |
| 1521 #define COMPARISON_OP(name, comparison) \ | |
| 1522 CASE(_if_icmp##name): { \ | |
|
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1523 const bool cmp = (STACK_INT(-2) comparison STACK_INT(-1)); \ |
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1524 int skip = cmp \ |
| 0 | 1525 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1526 address branch_pc = pc; \ | |
|
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1527 /* Profile branch. */ \ |
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1528 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1529 UPDATE_PC_AND_TOS(skip, -2); \ |
| 1530 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1531 CONTINUE; \ | |
| 1532 } \ | |
| 1533 CASE(_if##name): { \ | |
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1534 const bool cmp = (STACK_INT(-1) comparison 0); \ |
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1535 int skip = cmp \ |
| 0 | 1536 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1537 address branch_pc = pc; \ | |
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1538 /* Profile branch. */ \ |
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1539 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1540 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1541 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1542 CONTINUE; \ | |
| 1543 } | |
| 1544 | |
| 1545 #define COMPARISON_OP2(name, comparison) \ | |
| 1546 COMPARISON_OP(name, comparison) \ | |
| 1547 CASE(_if_acmp##name): { \ | |
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1548 const bool cmp = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)); \ |
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1549 int skip = cmp \ |
| 0 | 1550 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1551 address branch_pc = pc; \ | |
|
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1552 /* Profile branch. */ \ |
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1553 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1554 UPDATE_PC_AND_TOS(skip, -2); \ |
| 1555 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1556 CONTINUE; \ | |
| 1557 } | |
| 1558 | |
| 1559 #define NULL_COMPARISON_NOT_OP(name) \ | |
| 1560 CASE(_if##name): { \ | |
|
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1561 const bool cmp = (!(STACK_OBJECT(-1) == NULL)); \ |
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1562 int skip = cmp \ |
| 0 | 1563 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1564 address branch_pc = pc; \ | |
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1565 /* Profile branch. */ \ |
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1566 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1567 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1568 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1569 CONTINUE; \ | |
| 1570 } | |
| 1571 | |
| 1572 #define NULL_COMPARISON_OP(name) \ | |
| 1573 CASE(_if##name): { \ | |
|
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1574 const bool cmp = ((STACK_OBJECT(-1) == NULL)); \ |
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1575 int skip = cmp \ |
| 0 | 1576 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1577 address branch_pc = pc; \ | |
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1578 /* Profile branch. */ \ |
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1579 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
| 0 | 1580 UPDATE_PC_AND_TOS(skip, -1); \ |
| 1581 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1582 CONTINUE; \ | |
| 1583 } | |
| 1584 COMPARISON_OP(lt, <); | |
| 1585 COMPARISON_OP(gt, >); | |
| 1586 COMPARISON_OP(le, <=); | |
| 1587 COMPARISON_OP(ge, >=); | |
| 1588 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
| 1589 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
| 1590 NULL_COMPARISON_OP(null); | |
| 1591 NULL_COMPARISON_NOT_OP(nonnull); | |
| 1592 | |
| 1593 /* Goto pc at specified offset in switch table. */ | |
| 1594 | |
| 1595 CASE(_tableswitch): { | |
| 1596 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1597 int32_t key = STACK_INT(-1); | |
| 1598 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
| 1599 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
| 1600 int32_t skip; | |
| 1601 key -= low; | |
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1602 if (((uint32_t) key > (uint32_t)(high - low))) { |
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1603 key = -1; |
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1604 skip = Bytes::get_Java_u4((address)&lpc[0]); |
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1605 } else { |
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1606 skip = Bytes::get_Java_u4((address)&lpc[key + 3]); |
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1607 } |
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1608 // Profile switch. |
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1609 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/key); |
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1610 // Does this really need a full backedge check (osr)? |
| 0 | 1611 address branch_pc = pc; |
| 1612 UPDATE_PC_AND_TOS(skip, -1); | |
| 1613 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1614 CONTINUE; | |
| 1615 } | |
| 1616 | |
|
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1617 /* Goto pc whose table entry matches specified key. */ |
| 0 | 1618 |
| 1619 CASE(_lookupswitch): { | |
| 1620 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1621 int32_t key = STACK_INT(-1); | |
| 1622 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
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1623 // Remember index. |
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1624 int index = -1; |
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1625 int newindex = 0; |
| 0 | 1626 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); |
| 1627 while (--npairs >= 0) { | |
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1628 lpc += 2; |
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1629 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { |
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1630 skip = Bytes::get_Java_u4((address)&lpc[1]); |
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1631 index = newindex; |
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1632 break; |
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1633 } |
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1634 newindex += 1; |
| 0 | 1635 } |
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1636 // Profile switch. |
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1637 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/index); |
| 0 | 1638 address branch_pc = pc; |
| 1639 UPDATE_PC_AND_TOS(skip, -1); | |
| 1640 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1641 CONTINUE; | |
| 1642 } | |
| 1643 | |
| 1644 CASE(_fcmpl): | |
| 1645 CASE(_fcmpg): | |
| 1646 { | |
| 1647 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
| 1648 STACK_FLOAT(-1), | |
| 1649 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
| 1650 -2); | |
| 1651 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1652 } | |
| 1653 | |
| 1654 CASE(_dcmpl): | |
| 1655 CASE(_dcmpg): | |
| 1656 { | |
| 1657 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
| 1658 STACK_DOUBLE(-1), | |
| 1659 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
| 1660 MORE_STACK(-4); // Pop | |
| 1661 SET_STACK_INT(r, 0); | |
| 1662 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1663 } | |
| 1664 | |
| 1665 CASE(_lcmp): | |
| 1666 { | |
| 1667 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
| 1668 MORE_STACK(-4); | |
| 1669 SET_STACK_INT(r, 0); | |
| 1670 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1671 } | |
| 1672 | |
| 1673 | |
| 1674 /* Return from a method */ | |
| 1675 | |
| 1676 CASE(_areturn): | |
| 1677 CASE(_ireturn): | |
| 1678 CASE(_freturn): | |
| 1679 { | |
| 1680 // Allow a safepoint before returning to frame manager. | |
| 1681 SAFEPOINT; | |
| 1682 | |
| 1683 goto handle_return; | |
| 1684 } | |
| 1685 | |
| 1686 CASE(_lreturn): | |
| 1687 CASE(_dreturn): | |
| 1688 { | |
| 1689 // Allow a safepoint before returning to frame manager. | |
| 1690 SAFEPOINT; | |
| 1691 goto handle_return; | |
| 1692 } | |
| 1693 | |
| 1694 CASE(_return_register_finalizer): { | |
| 1695 | |
| 1696 oop rcvr = LOCALS_OBJECT(0); | |
|
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1697 VERIFY_OOP(rcvr); |
|
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1698 if (rcvr->klass()->has_finalizer()) { |
| 0 | 1699 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
| 1700 } | |
| 1701 goto handle_return; | |
| 1702 } | |
| 1703 CASE(_return): { | |
| 1704 | |
| 1705 // Allow a safepoint before returning to frame manager. | |
| 1706 SAFEPOINT; | |
| 1707 goto handle_return; | |
| 1708 } | |
| 1709 | |
| 1710 /* Array access byte-codes */ | |
| 1711 | |
| 1712 /* Every array access byte-code starts out like this */ | |
| 1713 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
| 1714 #define ARRAY_INTRO(arrayOff) \ | |
| 1715 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
| 1716 jint index = STACK_INT(arrayOff + 1); \ | |
| 1717 char message[jintAsStringSize]; \ | |
| 1718 CHECK_NULL(arrObj); \ | |
| 1719 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
| 1720 sprintf(message, "%d", index); \ | |
| 1721 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
|
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1722 message, note_rangeCheck_trap); \ |
| 0 | 1723 } |
| 1724 | |
| 1725 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
| 1726 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
| 1727 { \ | |
| 1728 ARRAY_INTRO(-2); \ | |
|
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1729 (void)extra; \ |
| 0 | 1730 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
| 1731 -2); \ | |
| 1732 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1733 } | |
| 1734 | |
| 1735 /* 64-bit loads */ | |
| 1736 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
| 1737 { \ | |
| 1738 ARRAY_INTRO(-2); \ | |
| 1739 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
|
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1740 (void)extra; \ |
|
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|
1741 UPDATE_PC_AND_CONTINUE(1); \ |
| 0 | 1742 } |
| 1743 | |
| 1744 CASE(_iaload): | |
| 1745 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1746 CASE(_faload): | |
| 1747 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
|
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1748 CASE(_aaload): { |
|
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1749 ARRAY_INTRO(-2); |
|
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1750 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
|
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1751 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
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1752 } |
| 0 | 1753 CASE(_baload): |
| 1754 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1755 CASE(_caload): | |
| 1756 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1757 CASE(_saload): | |
| 1758 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1759 CASE(_laload): | |
| 1760 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
| 1761 CASE(_daload): | |
| 1762 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1763 | |
| 1764 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
| 1765 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
| 1766 { \ | |
| 1767 ARRAY_INTRO(-3); \ | |
|
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1768 (void)extra; \ |
| 0 | 1769 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1770 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
| 1771 } | |
| 1772 | |
| 1773 /* 64-bit stores */ | |
| 1774 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
| 1775 { \ | |
| 1776 ARRAY_INTRO(-4); \ | |
|
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1777 (void)extra; \ |
| 0 | 1778 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1779 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
| 1780 } | |
| 1781 | |
| 1782 CASE(_iastore): | |
| 1783 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1784 CASE(_fastore): | |
| 1785 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
| 1786 /* | |
| 1787 * This one looks different because of the assignability check | |
| 1788 */ | |
| 1789 CASE(_aastore): { | |
| 1790 oop rhsObject = STACK_OBJECT(-1); | |
|
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1791 VERIFY_OOP(rhsObject); |
| 0 | 1792 ARRAY_INTRO( -3); |
| 1793 // arrObj, index are set | |
| 1794 if (rhsObject != NULL) { | |
| 1795 /* Check assignability of rhsObject into arrObj */ | |
|
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1796 Klass* rhsKlass = rhsObject->klass(); // EBX (subclass) |
|
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1797 Klass* elemKlass = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
| 0 | 1798 // |
| 1799 // Check for compatibilty. This check must not GC!! | |
| 1800 // Seems way more expensive now that we must dispatch | |
| 1801 // | |
|
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1802 if (rhsKlass != elemKlass && !rhsKlass->is_subtype_of(elemKlass)) { // ebx->is... |
|
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1803 // Decrement counter if subtype check failed. |
|
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1804 BI_PROFILE_SUBTYPECHECK_FAILED(rhsKlass); |
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1805 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), "", note_arrayCheck_trap); |
| 0 | 1806 } |
|
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1807 // Profile checkcast with null_seen and receiver. |
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1808 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, rhsKlass); |
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1809 } else { |
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1810 // Profile checkcast with null_seen and receiver. |
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1811 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
| 0 | 1812 } |
|
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1813 ((objArrayOop) arrObj)->obj_at_put(index, rhsObject); |
| 0 | 1814 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
| 1815 } | |
| 1816 CASE(_bastore): | |
| 1817 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1818 CASE(_castore): | |
| 1819 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1820 CASE(_sastore): | |
| 1821 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1822 CASE(_lastore): | |
| 1823 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
| 1824 CASE(_dastore): | |
| 1825 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1826 | |
| 1827 CASE(_arraylength): | |
| 1828 { | |
| 1829 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
| 1830 CHECK_NULL(ary); | |
| 1831 SET_STACK_INT(ary->length(), -1); | |
| 1832 UPDATE_PC_AND_CONTINUE(1); | |
| 1833 } | |
| 1834 | |
| 1835 /* monitorenter and monitorexit for locking/unlocking an object */ | |
| 1836 | |
| 1837 CASE(_monitorenter): { | |
| 1838 oop lockee = STACK_OBJECT(-1); | |
| 1839 // derefing's lockee ought to provoke implicit null check | |
| 1840 CHECK_NULL(lockee); | |
| 1841 // find a free monitor or one already allocated for this object | |
| 1842 // if we find a matching object then we need a new monitor | |
| 1843 // since this is recursive enter | |
| 1844 BasicObjectLock* limit = istate->monitor_base(); | |
| 1845 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1846 BasicObjectLock* entry = NULL; | |
| 1847 while (most_recent != limit ) { | |
| 1848 if (most_recent->obj() == NULL) entry = most_recent; | |
| 1849 else if (most_recent->obj() == lockee) break; | |
| 1850 most_recent++; | |
| 1851 } | |
| 1852 if (entry != NULL) { | |
| 1853 entry->set_obj(lockee); | |
|
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1854 int success = false; |
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1855 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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1856 |
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1857 markOop mark = lockee->mark(); |
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1858 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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1859 // implies UseBiasedLocking |
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1860 if (mark->has_bias_pattern()) { |
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1861 uintptr_t thread_ident; |
|
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1862 uintptr_t anticipated_bias_locking_value; |
|
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1863 thread_ident = (uintptr_t)istate->thread(); |
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1864 anticipated_bias_locking_value = |
|
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1865 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
|
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1866 ~((uintptr_t) markOopDesc::age_mask_in_place); |
|
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1867 |
|
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1868 if (anticipated_bias_locking_value == 0) { |
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1869 // already biased towards this thread, nothing to do |
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1870 if (PrintBiasedLockingStatistics) { |
|
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1871 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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1872 } |
|
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1873 success = true; |
|
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1874 } |
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1875 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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1876 // try revoke bias |
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1877 markOop header = lockee->klass()->prototype_header(); |
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1878 if (hash != markOopDesc::no_hash) { |
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1879 header = header->copy_set_hash(hash); |
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1880 } |
|
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1881 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
|
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1882 if (PrintBiasedLockingStatistics) |
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1883 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
|
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1884 } |
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1885 } |
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1886 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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1887 // try rebias |
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1888 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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1889 if (hash != markOopDesc::no_hash) { |
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1890 new_header = new_header->copy_set_hash(hash); |
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1891 } |
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1892 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
|
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1893 if (PrintBiasedLockingStatistics) |
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1894 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
|
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1895 } |
|
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1896 else { |
|
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1897 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
|
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1898 } |
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1899 success = true; |
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1900 } |
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1901 else { |
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1902 // try to bias towards thread in case object is anonymously biased |
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1903 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1904 (uintptr_t)markOopDesc::age_mask_in_place | |
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1905 epoch_mask_in_place)); |
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1906 if (hash != markOopDesc::no_hash) { |
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1907 header = header->copy_set_hash(hash); |
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1908 } |
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1909 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1910 // debugging hint |
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1911 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1912 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1913 if (PrintBiasedLockingStatistics) |
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1914 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1915 } |
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1916 else { |
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1917 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1918 } |
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1919 success = true; |
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1920 } |
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1921 } |
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1922 |
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1923 // traditional lightweight locking |
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1924 if (!success) { |
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1925 markOop displaced = lockee->mark()->set_unlocked(); |
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1926 entry->lock()->set_displaced_header(displaced); |
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1927 bool call_vm = UseHeavyMonitors; |
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1928 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1929 // Is it simple recursive case? |
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1930 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1931 entry->lock()->set_displaced_header(NULL); |
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1932 } else { |
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1933 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1934 } |
| 0 | 1935 } |
| 1936 } | |
| 1937 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1938 } else { | |
| 1939 istate->set_msg(more_monitors); | |
| 1940 UPDATE_PC_AND_RETURN(0); // Re-execute | |
| 1941 } | |
| 1942 } | |
| 1943 | |
| 1944 CASE(_monitorexit): { | |
| 1945 oop lockee = STACK_OBJECT(-1); | |
| 1946 CHECK_NULL(lockee); | |
| 1947 // derefing's lockee ought to provoke implicit null check | |
| 1948 // find our monitor slot | |
| 1949 BasicObjectLock* limit = istate->monitor_base(); | |
| 1950 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1951 while (most_recent != limit ) { | |
| 1952 if ((most_recent)->obj() == lockee) { | |
| 1953 BasicLock* lock = most_recent->lock(); | |
| 1954 markOop header = lock->displaced_header(); | |
| 1955 most_recent->set_obj(NULL); | |
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1956 if (!lockee->mark()->has_bias_pattern()) { |
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1957 bool call_vm = UseHeavyMonitors; |
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1958 // If it isn't recursive we either must swap old header or call the runtime |
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1959 if (header != NULL || call_vm) { |
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1960 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1961 // restore object for the slow case |
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1962 most_recent->set_obj(lockee); |
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1963 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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1964 } |
| 0 | 1965 } |
| 1966 } | |
| 1967 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1968 } | |
| 1969 most_recent++; | |
| 1970 } | |
| 1971 // Need to throw illegal monitor state exception | |
| 1972 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
| 2480 | 1973 ShouldNotReachHere(); |
| 0 | 1974 } |
| 1975 | |
| 1976 /* All of the non-quick opcodes. */ | |
| 1977 | |
| 1978 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
| 1979 * constant pool index in the instruction. | |
| 1980 */ | |
| 1981 CASE(_getfield): | |
| 1982 CASE(_getstatic): | |
| 1983 { | |
| 1984 u2 index; | |
| 1985 ConstantPoolCacheEntry* cache; | |
| 1986 index = Bytes::get_native_u2(pc+1); | |
| 1987 | |
| 1988 // QQQ Need to make this as inlined as possible. Probably need to | |
| 1989 // split all the bytecode cases out so c++ compiler has a chance | |
| 1990 // for constant prop to fold everything possible away. | |
| 1991 | |
| 1992 cache = cp->entry_at(index); | |
| 1993 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 1994 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 1995 handle_exception); | |
| 1996 cache = cp->entry_at(index); | |
| 1997 } | |
| 1998 | |
| 1999 #ifdef VM_JVMTI | |
| 2000 if (_jvmti_interp_events) { | |
| 2001 int *count_addr; | |
| 2002 oop obj; | |
| 2003 // Check to see if a field modification watch has been set | |
| 2004 // before we take the time to call into the VM. | |
| 2005 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
| 2006 if ( *count_addr > 0 ) { | |
| 2007 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 2008 obj = (oop)NULL; | |
| 2009 } else { | |
| 2010 obj = (oop) STACK_OBJECT(-1); | |
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2011 VERIFY_OOP(obj); |
| 0 | 2012 } |
| 2013 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
| 2014 obj, | |
| 2015 cache), | |
| 2016 handle_exception); | |
| 2017 } | |
| 2018 } | |
| 2019 #endif /* VM_JVMTI */ | |
| 2020 | |
| 2021 oop obj; | |
| 2022 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 6926 | 2023 Klass* k = cache->f1_as_klass(); |
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2024 obj = k->java_mirror(); |
| 0 | 2025 MORE_STACK(1); // Assume single slot push |
| 2026 } else { | |
| 2027 obj = (oop) STACK_OBJECT(-1); | |
| 2028 CHECK_NULL(obj); | |
| 2029 } | |
| 2030 | |
| 2031 // | |
| 2032 // Now store the result on the stack | |
| 2033 // | |
| 2034 TosState tos_type = cache->flag_state(); | |
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2035 int field_offset = cache->f2_as_index(); |
| 0 | 2036 if (cache->is_volatile()) { |
|
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2037 if (support_IRIW_for_not_multiple_copy_atomic_cpu) { |
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2038 OrderAccess::fence(); |
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2039 } |
| 0 | 2040 if (tos_type == atos) { |
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2041 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
| 0 | 2042 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
| 2043 } else if (tos_type == itos) { | |
| 2044 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
| 2045 } else if (tos_type == ltos) { | |
| 2046 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
| 2047 MORE_STACK(1); | |
| 2048 } else if (tos_type == btos) { | |
| 2049 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
| 2050 } else if (tos_type == ctos) { | |
| 2051 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
| 2052 } else if (tos_type == stos) { | |
| 2053 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
| 2054 } else if (tos_type == ftos) { | |
| 2055 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
| 2056 } else { | |
| 2057 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
| 2058 MORE_STACK(1); | |
| 2059 } | |
| 2060 } else { | |
| 2061 if (tos_type == atos) { | |
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2062 VERIFY_OOP(obj->obj_field(field_offset)); |
| 0 | 2063 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
| 2064 } else if (tos_type == itos) { | |
| 2065 SET_STACK_INT(obj->int_field(field_offset), -1); | |
| 2066 } else if (tos_type == ltos) { | |
| 2067 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
| 2068 MORE_STACK(1); | |
| 2069 } else if (tos_type == btos) { | |
| 2070 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
| 2071 } else if (tos_type == ctos) { | |
| 2072 SET_STACK_INT(obj->char_field(field_offset), -1); | |
| 2073 } else if (tos_type == stos) { | |
| 2074 SET_STACK_INT(obj->short_field(field_offset), -1); | |
| 2075 } else if (tos_type == ftos) { | |
| 2076 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
| 2077 } else { | |
| 2078 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
| 2079 MORE_STACK(1); | |
| 2080 } | |
| 2081 } | |
| 2082 | |
| 2083 UPDATE_PC_AND_CONTINUE(3); | |
| 2084 } | |
| 2085 | |
| 2086 CASE(_putfield): | |
| 2087 CASE(_putstatic): | |
| 2088 { | |
| 2089 u2 index = Bytes::get_native_u2(pc+1); | |
| 2090 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2091 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2092 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 2093 handle_exception); | |
| 2094 cache = cp->entry_at(index); | |
| 2095 } | |
| 2096 | |
| 2097 #ifdef VM_JVMTI | |
| 2098 if (_jvmti_interp_events) { | |
| 2099 int *count_addr; | |
| 2100 oop obj; | |
| 2101 // Check to see if a field modification watch has been set | |
| 2102 // before we take the time to call into the VM. | |
| 2103 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
| 2104 if ( *count_addr > 0 ) { | |
| 2105 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 2106 obj = (oop)NULL; | |
| 2107 } | |
| 2108 else { | |
| 2109 if (cache->is_long() || cache->is_double()) { | |
| 2110 obj = (oop) STACK_OBJECT(-3); | |
| 2111 } else { | |
| 2112 obj = (oop) STACK_OBJECT(-2); | |
| 2113 } | |
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2114 VERIFY_OOP(obj); |
| 0 | 2115 } |
| 2116 | |
| 2117 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
| 2118 obj, | |
| 2119 cache, | |
| 2120 (jvalue *)STACK_SLOT(-1)), | |
| 2121 handle_exception); | |
| 2122 } | |
| 2123 } | |
| 2124 #endif /* VM_JVMTI */ | |
| 2125 | |
| 2126 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2127 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2128 | |
| 2129 oop obj; | |
| 2130 int count; | |
| 2131 TosState tos_type = cache->flag_state(); | |
| 2132 | |
| 2133 count = -1; | |
| 2134 if (tos_type == ltos || tos_type == dtos) { | |
| 2135 --count; | |
| 2136 } | |
| 2137 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 6926 | 2138 Klass* k = cache->f1_as_klass(); |
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2139 obj = k->java_mirror(); |
| 0 | 2140 } else { |
| 2141 --count; | |
| 2142 obj = (oop) STACK_OBJECT(count); | |
| 2143 CHECK_NULL(obj); | |
| 2144 } | |
| 2145 | |
| 2146 // | |
| 2147 // Now store the result | |
| 2148 // | |
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2149 int field_offset = cache->f2_as_index(); |
| 0 | 2150 if (cache->is_volatile()) { |
| 2151 if (tos_type == itos) { | |
| 2152 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
| 2153 } else if (tos_type == atos) { | |
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2154 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2155 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2156 } else if (tos_type == btos) { | |
| 2157 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
| 2158 } else if (tos_type == ltos) { | |
| 2159 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
| 2160 } else if (tos_type == ctos) { | |
| 2161 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
| 2162 } else if (tos_type == stos) { | |
| 2163 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
| 2164 } else if (tos_type == ftos) { | |
| 2165 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2166 } else { | |
| 2167 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2168 } | |
| 2169 OrderAccess::storeload(); | |
| 2170 } else { | |
| 2171 if (tos_type == itos) { | |
| 2172 obj->int_field_put(field_offset, STACK_INT(-1)); | |
| 2173 } else if (tos_type == atos) { | |
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2174 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2175 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2176 } else if (tos_type == btos) { | |
| 2177 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
| 2178 } else if (tos_type == ltos) { | |
| 2179 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
| 2180 } else if (tos_type == ctos) { | |
| 2181 obj->char_field_put(field_offset, STACK_INT(-1)); | |
| 2182 } else if (tos_type == stos) { | |
| 2183 obj->short_field_put(field_offset, STACK_INT(-1)); | |
| 2184 } else if (tos_type == ftos) { | |
| 2185 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2186 } else { | |
| 2187 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2188 } | |
| 2189 } | |
| 2190 | |
| 2191 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
| 2192 } | |
| 2193 | |
| 2194 CASE(_new): { | |
| 2195 u2 index = Bytes::get_Java_u2(pc+1); | |
|
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2196 ConstantPool* constants = istate->method()->constants(); |
| 0 | 2197 if (!constants->tag_at(index).is_unresolved_klass()) { |
| 2198 // Make sure klass is initialized and doesn't have a finalizer | |
|
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2199 Klass* entry = constants->slot_at(index).get_klass(); |
| 0 | 2200 assert(entry->is_klass(), "Should be resolved klass"); |
|
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2201 Klass* k_entry = (Klass*) entry; |
|
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2202 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
|
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2203 InstanceKlass* ik = (InstanceKlass*) k_entry; |
| 0 | 2204 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
| 2205 size_t obj_size = ik->size_helper(); | |
| 2206 oop result = NULL; | |
| 2207 // If the TLAB isn't pre-zeroed then we'll have to do it | |
| 2208 bool need_zero = !ZeroTLAB; | |
| 2209 if (UseTLAB) { | |
| 2210 result = (oop) THREAD->tlab().allocate(obj_size); | |
| 2211 } | |
|
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2212 // Disable non-TLAB-based fast-path, because profiling requires that all |
|
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2213 // allocations go through InterpreterRuntime::_new() if THREAD->tlab().allocate |
|
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|
2214 // returns NULL. |
|
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|
2215 #ifndef CC_INTERP_PROFILE |
| 0 | 2216 if (result == NULL) { |
| 2217 need_zero = true; | |
| 2218 // Try allocate in shared eden | |
|
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|
2219 retry: |
| 0 | 2220 HeapWord* compare_to = *Universe::heap()->top_addr(); |
| 2221 HeapWord* new_top = compare_to + obj_size; | |
| 2222 if (new_top <= *Universe::heap()->end_addr()) { | |
| 2223 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
| 2224 goto retry; | |
| 2225 } | |
| 2226 result = (oop) compare_to; | |
| 2227 } | |
| 2228 } | |
|
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|
2229 #endif |
| 0 | 2230 if (result != NULL) { |
| 2231 // Initialize object (if nonzero size and need) and then the header | |
| 2232 if (need_zero ) { | |
| 2233 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
| 2234 obj_size -= sizeof(oopDesc) / oopSize; | |
| 2235 if (obj_size > 0 ) { | |
| 2236 memset(to_zero, 0, obj_size * HeapWordSize); | |
| 2237 } | |
| 2238 } | |
| 2239 if (UseBiasedLocking) { | |
| 2240 result->set_mark(ik->prototype_header()); | |
| 2241 } else { | |
| 2242 result->set_mark(markOopDesc::prototype()); | |
| 2243 } | |
|
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|
2244 result->set_klass_gap(0); |
| 0 | 2245 result->set_klass(k_entry); |
|
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|
2246 // Must prevent reordering of stores for object initialization |
|
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|
2247 // with stores that publish the new object. |
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|
2248 OrderAccess::storestore(); |
| 0 | 2249 SET_STACK_OBJECT(result, 0); |
| 2250 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2251 } | |
| 2252 } | |
| 2253 } | |
| 2254 // Slow case allocation | |
| 2255 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
| 2256 handle_exception); | |
|
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2257 // Must prevent reordering of stores for object initialization |
|
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|
2258 // with stores that publish the new object. |
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|
2259 OrderAccess::storestore(); |
| 0 | 2260 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
| 2261 THREAD->set_vm_result(NULL); | |
| 2262 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2263 } | |
| 2264 CASE(_anewarray): { | |
| 2265 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2266 jint size = STACK_INT(-1); | |
| 2267 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
| 2268 handle_exception); | |
|
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|
2269 // Must prevent reordering of stores for object initialization |
|
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|
2270 // with stores that publish the new object. |
|
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|
2271 OrderAccess::storestore(); |
| 0 | 2272 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
| 2273 THREAD->set_vm_result(NULL); | |
| 2274 UPDATE_PC_AND_CONTINUE(3); | |
| 2275 } | |
| 2276 CASE(_multianewarray): { | |
| 2277 jint dims = *(pc+3); | |
| 2278 jint size = STACK_INT(-1); | |
| 2279 // stack grows down, dimensions are up! | |
| 2280 jint *dimarray = | |
| 1509 | 2281 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
| 2282 Interpreter::stackElementWords-1]; | |
| 0 | 2283 //adjust pointer to start of stack element |
| 2284 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
| 2285 handle_exception); | |
|
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|
2286 // Must prevent reordering of stores for object initialization |
|
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|
2287 // with stores that publish the new object. |
|
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|
2288 OrderAccess::storestore(); |
| 0 | 2289 SET_STACK_OBJECT(THREAD->vm_result(), -dims); |
| 2290 THREAD->set_vm_result(NULL); | |
| 2291 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
| 2292 } | |
| 2293 CASE(_checkcast): | |
| 2294 if (STACK_OBJECT(-1) != NULL) { | |
|
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|
2295 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2296 u2 index = Bytes::get_Java_u2(pc+1); |
| 2297 // Constant pool may have actual klass or unresolved klass. If it is | |
|
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|
2298 // unresolved we must resolve it. |
| 0 | 2299 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
| 2300 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2301 } | |
|
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|
2302 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
|
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|
2303 Klass* objKlass = STACK_OBJECT(-1)->klass(); // ebx |
| 0 | 2304 // |
| 2305 // Check for compatibilty. This check must not GC!! | |
|
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|
2306 // Seems way more expensive now that we must dispatch. |
| 0 | 2307 // |
|
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|
2308 if (objKlass != klassOf && !objKlass->is_subtype_of(klassOf)) { |
|
abe03600372a
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|
2309 // Decrement counter at checkcast. |
|
abe03600372a
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|
2310 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
| 0 | 2311 ResourceMark rm(THREAD); |
|
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|
2312 const char* objName = objKlass->external_name(); |
| 6983 | 2313 const char* klassName = klassOf->external_name(); |
| 0 | 2314 char* message = SharedRuntime::generate_class_cast_message( |
| 2315 objName, klassName); | |
|
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|
2316 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message, note_classCheck_trap); |
| 0 | 2317 } |
|
14420
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|
2318 // Profile checkcast with null_seen and receiver. |
|
abe03600372a
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changeset
|
2319 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, objKlass); |
| 0 | 2320 } else { |
|
14420
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|
2321 // Profile checkcast with null_seen and receiver. |
|
abe03600372a
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|
2322 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
| 0 | 2323 } |
| 2324 UPDATE_PC_AND_CONTINUE(3); | |
| 2325 | |
| 2326 CASE(_instanceof): | |
| 2327 if (STACK_OBJECT(-1) == NULL) { | |
| 2328 SET_STACK_INT(0, -1); | |
|
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|
2329 // Profile instanceof with null_seen and receiver. |
|
abe03600372a
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|
2330 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/true, NULL); |
| 0 | 2331 } else { |
|
1681
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|
2332 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2333 u2 index = Bytes::get_Java_u2(pc+1); |
| 2334 // Constant pool may have actual klass or unresolved klass. If it is | |
|
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|
2335 // unresolved we must resolve it. |
| 0 | 2336 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
| 2337 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2338 } | |
|
6725
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changeset
|
2339 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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|
2340 Klass* objKlass = STACK_OBJECT(-1)->klass(); |
| 0 | 2341 // |
| 2342 // Check for compatibilty. This check must not GC!! | |
|
14420
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|
2343 // Seems way more expensive now that we must dispatch. |
| 0 | 2344 // |
|
14420
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diff
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|
2345 if ( objKlass == klassOf || objKlass->is_subtype_of(klassOf)) { |
| 0 | 2346 SET_STACK_INT(1, -1); |
| 2347 } else { | |
| 2348 SET_STACK_INT(0, -1); | |
|
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|
2349 // Decrement counter at checkcast. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2350 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
| 0 | 2351 } |
|
14420
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changeset
|
2352 // Profile instanceof with null_seen and receiver. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2353 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/false, objKlass); |
| 0 | 2354 } |
| 2355 UPDATE_PC_AND_CONTINUE(3); | |
| 2356 | |
| 2357 CASE(_ldc_w): | |
| 2358 CASE(_ldc): | |
| 2359 { | |
| 2360 u2 index; | |
| 2361 bool wide = false; | |
| 2362 int incr = 2; // frequent case | |
| 2363 if (opcode == Bytecodes::_ldc) { | |
| 2364 index = pc[1]; | |
| 2365 } else { | |
| 2366 index = Bytes::get_Java_u2(pc+1); | |
| 2367 incr = 3; | |
| 2368 wide = true; | |
| 2369 } | |
| 2370 | |
|
6725
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changeset
|
2371 ConstantPool* constants = METHOD->constants(); |
| 0 | 2372 switch (constants->tag_at(index).value()) { |
| 2373 case JVM_CONSTANT_Integer: | |
| 2374 SET_STACK_INT(constants->int_at(index), 0); | |
| 2375 break; | |
| 2376 | |
| 2377 case JVM_CONSTANT_Float: | |
| 2378 SET_STACK_FLOAT(constants->float_at(index), 0); | |
| 2379 break; | |
| 2380 | |
| 2381 case JVM_CONSTANT_String: | |
|
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6964458: Reimplement class meta-data storage to use native memory
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|
2382 { |
|
da91efe96a93
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|
2383 oop result = constants->resolved_references()->obj_at(index); |
|
da91efe96a93
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|
2384 if (result == NULL) { |
|
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|
2385 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
|
da91efe96a93
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|
2386 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
|
da91efe96a93
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|
2387 THREAD->set_vm_result(NULL); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2388 } else { |
|
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|
2389 VERIFY_OOP(result); |
|
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|
2390 SET_STACK_OBJECT(result, 0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2391 } |
| 0 | 2392 break; |
|
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|
2393 } |
| 0 | 2394 |
| 2395 case JVM_CONSTANT_Class: | |
|
2376
c7f3d0b4570f
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2260
diff
changeset
|
2396 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
|
c7f3d0b4570f
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2260
diff
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|
2397 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
| 0 | 2398 break; |
| 2399 | |
| 2400 case JVM_CONSTANT_UnresolvedClass: | |
| 2401 case JVM_CONSTANT_UnresolvedClassInError: | |
| 2402 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
| 2403 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
| 2404 THREAD->set_vm_result(NULL); | |
| 2405 break; | |
| 2406 | |
| 2407 default: ShouldNotReachHere(); | |
| 2408 } | |
| 2409 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
| 2410 } | |
| 2411 | |
| 2412 CASE(_ldc2_w): | |
| 2413 { | |
| 2414 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2415 | |
|
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|
2416 ConstantPool* constants = METHOD->constants(); |
| 0 | 2417 switch (constants->tag_at(index).value()) { |
| 2418 | |
| 2419 case JVM_CONSTANT_Long: | |
| 2420 SET_STACK_LONG(constants->long_at(index), 1); | |
| 2421 break; | |
| 2422 | |
| 2423 case JVM_CONSTANT_Double: | |
| 2424 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
| 2425 break; | |
| 2426 default: ShouldNotReachHere(); | |
| 2427 } | |
| 2428 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
| 2429 } | |
| 2430 | |
| 2480 | 2431 CASE(_fast_aldc_w): |
| 2432 CASE(_fast_aldc): { | |
| 2433 u2 index; | |
| 2434 int incr; | |
| 2435 if (opcode == Bytecodes::_fast_aldc) { | |
| 2436 index = pc[1]; | |
| 2437 incr = 2; | |
| 2438 } else { | |
| 2439 index = Bytes::get_native_u2(pc+1); | |
| 2440 incr = 3; | |
| 2441 } | |
| 2442 | |
| 2443 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
| 2444 // This kind of CP cache entry does not need to match the flags byte, because | |
| 2445 // there is a 1-1 relation between bytecode type and CP entry type. | |
|
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|
2446 ConstantPool* constants = METHOD->constants(); |
|
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2447 oop result = constants->resolved_references()->obj_at(index); |
|
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|
2448 if (result == NULL) { |
| 2480 | 2449 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
| 2450 handle_exception); | |
|
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|
2451 result = THREAD->vm_result(); |
| 2480 | 2452 } |
| 2453 | |
|
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|
2454 VERIFY_OOP(result); |
|
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|
2455 SET_STACK_OBJECT(result, 0); |
| 2480 | 2456 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
| 2457 } | |
| 2458 | |
| 2459 CASE(_invokedynamic): { | |
| 6926 | 2460 |
| 2480 | 2461 if (!EnableInvokeDynamic) { |
| 2462 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
| 2463 // The verifier will stop it. However, if we get past the verifier, | |
| 2464 // this will stop the thread in a reasonable way, without crashing the JVM. | |
| 2465 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
| 2466 handle_exception); | |
| 2467 ShouldNotReachHere(); | |
| 2468 } | |
| 2469 | |
| 6926 | 2470 u4 index = Bytes::get_native_u4(pc+1); |
| 2471 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
| 2480 | 2472 |
|
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|
2473 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
| 2480 | 2474 // This kind of CP cache entry does not need to match the flags byte, because |
| 2475 // there is a 1-1 relation between bytecode type and CP entry type. | |
| 6926 | 2476 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
| 2480 | 2477 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
| 2478 handle_exception); | |
| 6926 | 2479 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
| 2480 } | |
| 2481 | |
| 2482 Method* method = cache->f1_as_method(); | |
|
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|
2483 if (VerifyOops) method->verify(); |
| 6926 | 2484 |
| 2485 if (cache->has_appendix()) { | |
| 2486 ConstantPool* constants = METHOD->constants(); | |
| 2487 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2488 MORE_STACK(1); | |
| 2489 } | |
| 2490 | |
| 2491 istate->set_msg(call_method); | |
| 2492 istate->set_callee(method); | |
| 2493 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2494 istate->set_bcp_advance(5); | |
| 2495 | |
|
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|
2496 // Invokedynamic has got a call counter, just like an invokestatic -> increment! |
|
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|
2497 BI_PROFILE_UPDATE_CALL(); |
|
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|
2498 |
| 6926 | 2499 UPDATE_PC_AND_RETURN(0); // I'll be back... |
| 2500 } | |
| 2501 | |
| 2502 CASE(_invokehandle): { | |
| 2503 | |
| 2504 if (!EnableInvokeDynamic) { | |
| 2505 ShouldNotReachHere(); | |
| 2480 | 2506 } |
| 2507 | |
| 6926 | 2508 u2 index = Bytes::get_native_u2(pc+1); |
| 2509 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2510 | |
| 2511 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
| 2512 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
| 2513 handle_exception); | |
| 2514 cache = cp->entry_at(index); | |
| 2515 } | |
| 2516 | |
| 2517 Method* method = cache->f1_as_method(); | |
|
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2518 if (VerifyOops) method->verify(); |
| 6926 | 2519 |
| 2520 if (cache->has_appendix()) { | |
| 2521 ConstantPool* constants = METHOD->constants(); | |
| 2522 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2523 MORE_STACK(1); | |
| 2524 } | |
| 2525 | |
| 2526 istate->set_msg(call_method); | |
| 2527 istate->set_callee(method); | |
| 2528 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2529 istate->set_bcp_advance(3); | |
| 2480 | 2530 |
|
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2531 // Invokehandle has got a call counter, just like a final call -> increment! |
|
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|
2532 BI_PROFILE_UPDATE_FINALCALL(); |
|
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|
2533 |
| 2480 | 2534 UPDATE_PC_AND_RETURN(0); // I'll be back... |
| 2535 } | |
| 2536 | |
| 0 | 2537 CASE(_invokeinterface): { |
| 2538 u2 index = Bytes::get_native_u2(pc+1); | |
| 2539 | |
| 2540 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2541 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2542 | |
| 2543 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2544 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2545 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2546 handle_exception); | |
| 2547 cache = cp->entry_at(index); | |
| 2548 } | |
| 2549 | |
| 2550 istate->set_msg(call_method); | |
| 2551 | |
| 2552 // Special case of invokeinterface called for virtual method of | |
| 2553 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 2554 // This code isn't produced by javac, but could be produced by | |
| 2555 // another compliant java compiler. | |
|
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|
2556 if (cache->is_forced_virtual()) { |
|
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|
2557 Method* callee; |
| 0 | 2558 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
| 2559 if (cache->is_vfinal()) { | |
|
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|
2560 callee = cache->f2_as_vfinal_method(); |
|
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|
2561 // Profile 'special case of invokeinterface' final call. |
|
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|
2562 BI_PROFILE_UPDATE_FINALCALL(); |
| 0 | 2563 } else { |
|
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|
2564 // Get receiver. |
| 0 | 2565 int parms = cache->parameter_size(); |
|
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|
2566 // Same comments as invokevirtual apply here. |
|
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|
2567 oop rcvr = STACK_OBJECT(-parms); |
|
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|
2568 VERIFY_OOP(rcvr); |
|
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|
2569 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
|
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|
2570 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
|
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|
2571 // Profile 'special case of invokeinterface' virtual call. |
|
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|
2572 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
| 0 | 2573 } |
| 2574 istate->set_callee(callee); | |
| 2575 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2576 #ifdef VM_JVMTI | |
| 2577 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2578 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2579 } | |
| 2580 #endif /* VM_JVMTI */ | |
| 2581 istate->set_bcp_advance(5); | |
| 2582 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2583 } | |
| 2584 | |
| 2585 // this could definitely be cleaned up QQQ | |
|
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|
2586 Method* callee; |
|
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|
2587 Klass* iclass = cache->f1_as_klass(); |
|
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|
2588 // InstanceKlass* interface = (InstanceKlass*) iclass; |
| 0 | 2589 // get receiver |
| 2590 int parms = cache->parameter_size(); | |
| 2591 oop rcvr = STACK_OBJECT(-parms); | |
| 2592 CHECK_NULL(rcvr); | |
|
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|
2593 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
| 0 | 2594 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
| 2595 int i; | |
| 2596 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
| 2597 if (ki->interface_klass() == iclass) break; | |
| 2598 } | |
| 2599 // If the interface isn't found, this class doesn't implement this | |
| 2600 // interface. The link resolver checks this but only for the first | |
| 2601 // time this interface is called. | |
| 2602 if (i == int2->itable_length()) { | |
|
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|
2603 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap); |
| 0 | 2604 } |
|
6266
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changeset
|
2605 int mindex = cache->f2_as_index(); |
| 0 | 2606 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
| 2607 callee = im[mindex].method(); | |
| 2608 if (callee == NULL) { | |
|
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|
2609 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), "", note_no_trap); |
| 0 | 2610 } |
| 2611 | |
|
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|
2612 // Profile virtual call. |
|
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|
2613 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
|
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|
2614 |
| 0 | 2615 istate->set_callee(callee); |
| 2616 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2617 #ifdef VM_JVMTI | |
| 2618 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2619 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2620 } | |
| 2621 #endif /* VM_JVMTI */ | |
| 2622 istate->set_bcp_advance(5); | |
| 2623 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2624 } | |
| 2625 | |
| 2626 CASE(_invokevirtual): | |
| 2627 CASE(_invokespecial): | |
| 2628 CASE(_invokestatic): { | |
| 2629 u2 index = Bytes::get_native_u2(pc+1); | |
| 2630 | |
| 2631 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2632 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2633 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2634 | |
| 2635 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2636 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2637 handle_exception); | |
| 2638 cache = cp->entry_at(index); | |
| 2639 } | |
| 2640 | |
| 2641 istate->set_msg(call_method); | |
| 2642 { | |
|
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|
2643 Method* callee; |
| 0 | 2644 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
| 2645 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
|
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|
2646 if (cache->is_vfinal()) { |
|
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|
2647 callee = cache->f2_as_vfinal_method(); |
|
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|
2648 // Profile final call. |
|
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|
2649 BI_PROFILE_UPDATE_FINALCALL(); |
|
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|
2650 } else { |
| 0 | 2651 // get receiver |
| 2652 int parms = cache->parameter_size(); | |
| 2653 // this works but needs a resourcemark and seems to create a vtable on every call: | |
|
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|
2654 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
| 0 | 2655 // |
| 2656 // this fails with an assert | |
|
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|
2657 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
| 0 | 2658 // but this works |
|
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|
2659 oop rcvr = STACK_OBJECT(-parms); |
|
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|
2660 VERIFY_OOP(rcvr); |
|
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|
2661 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
| 0 | 2662 /* |
| 2663 Executing this code in java.lang.String: | |
| 2664 public String(char value[]) { | |
| 2665 this.count = value.length; | |
| 2666 this.value = (char[])value.clone(); | |
| 2667 } | |
| 2668 | |
|
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changeset
|
2669 a find on rcvr->klass() reports: |
| 0 | 2670 {type array char}{type array class} |
| 2671 - klass: {other class} | |
| 2672 | |
|
6725
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|
2673 but using InstanceKlass::cast(STACK_OBJECT(-parms)->klass()) causes in assertion failure |
|
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changeset
|
2674 because rcvr->klass()->oop_is_instance() == 0 |
| 0 | 2675 However it seems to have a vtable in the right location. Huh? |
| 2676 | |
| 2677 */ | |
|
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|
2678 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
|
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|
2679 // Profile virtual call. |
|
abe03600372a
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changeset
|
2680 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
| 0 | 2681 } |
| 2682 } else { | |
| 2683 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
| 2684 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
| 2685 } | |
|
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|
2686 callee = cache->f1_as_method(); |
|
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|
2687 |
|
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|
2688 // Profile call. |
|
abe03600372a
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changeset
|
2689 BI_PROFILE_UPDATE_CALL(); |
| 0 | 2690 } |
| 2691 | |
| 2692 istate->set_callee(callee); | |
| 2693 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2694 #ifdef VM_JVMTI | |
| 2695 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2696 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2697 } | |
| 2698 #endif /* VM_JVMTI */ | |
| 2699 istate->set_bcp_advance(3); | |
| 2700 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2701 } | |
| 2702 } | |
| 2703 | |
| 2704 /* Allocate memory for a new java object. */ | |
| 2705 | |
| 2706 CASE(_newarray): { | |
| 2707 BasicType atype = (BasicType) *(pc+1); | |
| 2708 jint size = STACK_INT(-1); | |
| 2709 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
| 2710 handle_exception); | |
|
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b4e19a1e459f
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diff
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|
2711 // Must prevent reordering of stores for object initialization |
|
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8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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|
2712 // with stores that publish the new object. |
|
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diff
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|
2713 OrderAccess::storestore(); |
| 0 | 2714 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
| 2715 THREAD->set_vm_result(NULL); | |
| 2716 | |
| 2717 UPDATE_PC_AND_CONTINUE(2); | |
| 2718 } | |
| 2719 | |
| 2720 /* Throw an exception. */ | |
| 2721 | |
| 2722 CASE(_athrow): { | |
| 2723 oop except_oop = STACK_OBJECT(-1); | |
| 2724 CHECK_NULL(except_oop); | |
| 2725 // set pending_exception so we use common code | |
| 2726 THREAD->set_pending_exception(except_oop, NULL, 0); | |
| 2727 goto handle_exception; | |
| 2728 } | |
| 2729 | |
| 2730 /* goto and jsr. They are exactly the same except jsr pushes | |
| 2731 * the address of the next instruction first. | |
| 2732 */ | |
| 2733 | |
| 2734 CASE(_jsr): { | |
| 2735 /* push bytecode index on stack */ | |
| 2736 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
| 2737 MORE_STACK(1); | |
| 2738 /* FALL THROUGH */ | |
| 2739 } | |
| 2740 | |
| 2741 CASE(_goto): | |
| 2742 { | |
| 2743 int16_t offset = (int16_t)Bytes::get_Java_u2(pc + 1); | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2744 // Profile jump. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2745 BI_PROFILE_UPDATE_JUMP(); |
| 0 | 2746 address branch_pc = pc; |
| 2747 UPDATE_PC(offset); | |
| 2748 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2749 CONTINUE; | |
| 2750 } | |
| 2751 | |
| 2752 CASE(_jsr_w): { | |
| 2753 /* push return address on the stack */ | |
| 2754 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
| 2755 MORE_STACK(1); | |
| 2756 /* FALL THROUGH */ | |
| 2757 } | |
| 2758 | |
| 2759 CASE(_goto_w): | |
| 2760 { | |
| 2761 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2762 // Profile jump. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2763 BI_PROFILE_UPDATE_JUMP(); |
| 0 | 2764 address branch_pc = pc; |
| 2765 UPDATE_PC(offset); | |
| 2766 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2767 CONTINUE; | |
| 2768 } | |
| 2769 | |
| 2770 /* return from a jsr or jsr_w */ | |
| 2771 | |
| 2772 CASE(_ret): { | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2773 // Profile ret. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2774 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
|
2775 // Now, update the pc. |
| 0 | 2776 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); |
| 2777 UPDATE_PC_AND_CONTINUE(0); | |
| 2778 } | |
| 2779 | |
| 2780 /* debugger breakpoint */ | |
| 2781 | |
| 2782 CASE(_breakpoint): { | |
| 2783 Bytecodes::Code original_bytecode; | |
| 2784 DECACHE_STATE(); | |
| 2785 SET_LAST_JAVA_FRAME(); | |
| 2786 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
| 2787 METHOD, pc); | |
| 2788 RESET_LAST_JAVA_FRAME(); | |
| 2789 CACHE_STATE(); | |
| 2790 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 2791 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
| 2792 handle_exception); | |
| 2793 | |
| 2794 opcode = (jubyte)original_bytecode; | |
| 2795 goto opcode_switch; | |
| 2796 } | |
| 2797 | |
| 2798 DEFAULT: | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2799 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2800 Bytecodes::name((Bytecodes::Code)opcode))); |
| 0 | 2801 goto finish; |
| 2802 | |
| 2803 } /* switch(opc) */ | |
| 2804 | |
| 2805 | |
| 2806 #ifdef USELABELS | |
| 2807 check_for_exception: | |
| 2808 #endif | |
| 2809 { | |
| 2810 if (!THREAD->has_pending_exception()) { | |
| 2811 CONTINUE; | |
| 2812 } | |
| 2813 /* We will be gcsafe soon, so flush our state. */ | |
| 2814 DECACHE_PC(); | |
| 2815 goto handle_exception; | |
| 2816 } | |
| 2817 do_continue: ; | |
| 2818 | |
| 2819 } /* while (1) interpreter loop */ | |
| 2820 | |
| 2821 | |
| 2822 // An exception exists in the thread state see whether this activation can handle it | |
| 2823 handle_exception: { | |
| 2824 | |
| 2825 HandleMarkCleaner __hmc(THREAD); | |
| 2826 Handle except_oop(THREAD, THREAD->pending_exception()); | |
| 2827 // Prevent any subsequent HandleMarkCleaner in the VM | |
| 2828 // from freeing the except_oop handle. | |
| 2829 HandleMark __hm(THREAD); | |
| 2830 | |
| 2831 THREAD->clear_pending_exception(); | |
| 2832 assert(except_oop(), "No exception to process"); | |
| 2833 intptr_t continuation_bci; | |
| 2834 // expression stack is emptied | |
| 1509 | 2835 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
| 0 | 2836 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
| 2837 handle_exception); | |
| 2838 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2839 except_oop = THREAD->vm_result(); |
| 0 | 2840 THREAD->set_vm_result(NULL); |
| 2841 if (continuation_bci >= 0) { | |
| 2842 // Place exception on top of stack | |
| 2843 SET_STACK_OBJECT(except_oop(), 0); | |
| 2844 MORE_STACK(1); | |
| 2845 pc = METHOD->code_base() + continuation_bci; | |
| 2846 if (TraceExceptions) { | |
| 2847 ttyLocker ttyl; | |
| 2848 ResourceMark rm; | |
|
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
simonis
parents:
14420
diff
changeset
|
2849 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
| 0 | 2850 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
| 2851 tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT, | |
|
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2852 istate->bcp() - (intptr_t)METHOD->code_base(), |
| 0 | 2853 continuation_bci, THREAD); |
| 2854 } | |
| 2855 // for AbortVMOnException flag | |
| 2856 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2857 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2858 // Update profiling data. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2859 BI_PROFILE_ALIGN_TO_CURRENT_BCI(); |
| 0 | 2860 goto run; |
| 2861 } | |
| 2862 if (TraceExceptions) { | |
| 2863 ttyLocker ttyl; | |
| 2864 ResourceMark rm; | |
|
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
simonis
parents:
14420
diff
changeset
|
2865 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
| 0 | 2866 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
| 2867 tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT, | |
|
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2868 istate->bcp() - (intptr_t)METHOD->code_base(), |
| 0 | 2869 THREAD); |
| 2870 } | |
| 2871 // for AbortVMOnException flag | |
| 2872 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
| 2873 // No handler in this activation, unwind and try again | |
| 2874 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
| 2875 goto handle_return; | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2876 } // handle_exception: |
| 0 | 2877 |
| 2878 // Return from an interpreter invocation with the result of the interpretation | |
| 2879 // on the top of the Java Stack (or a pending exception) | |
| 2880 | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2881 handle_Pop_Frame: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2882 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2883 // 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
|
2884 // 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
|
2885 // 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
|
2886 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2887 istate->set_msg(popping_frame); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2888 // 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
|
2889 // 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
|
2890 THREAD->clr_pop_frame_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2891 // 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
|
2892 THREAD->set_pop_frame_in_process(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2893 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2894 goto handle_return; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2895 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2896 } // handle_Pop_Frame |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2897 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2898 // 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
|
2899 // 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
|
2900 handle_Early_Return: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2901 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2902 istate->set_msg(early_return); |
|
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 // Clear expression stack. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2905 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2906 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2907 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
|
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 // Push the value to be returned. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2910 switch (istate->method()->result_type()) { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2911 case T_BOOLEAN: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2912 case T_SHORT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2913 case T_BYTE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2914 case T_CHAR: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2915 case T_INT: |
|
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2916 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
|
2917 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2918 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2919 case T_LONG: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2920 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
|
2921 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2922 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2923 case T_FLOAT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2924 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
|
2925 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2926 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2927 case T_DOUBLE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2928 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
|
2929 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2930 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2931 case T_ARRAY: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2932 case T_OBJECT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2933 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
|
2934 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2935 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2936 } |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2937 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2938 ts->clr_earlyret_value(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2939 ts->set_earlyret_oop(NULL); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2940 ts->clr_earlyret_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2941 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2942 // Fall through to handle_return. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2943 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2944 } // handle_Early_Return |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2945 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2946 handle_return: { |
|
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2947 // A storestore barrier is required to order initialization of |
|
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|
2948 // final fields with publishing the reference to the object that |
|
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|
2949 // holds the field. Without the barrier the value of final fields |
|
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8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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|
2950 // can be observed to change. |
|
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8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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|
2951 OrderAccess::storestore(); |
|
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2952 |
| 0 | 2953 DECACHE_STATE(); |
| 2954 | |
|
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2955 bool suppress_error = istate->msg() == popping_frame || istate->msg() == early_return; |
|
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8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
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|
2956 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
| 0 | 2957 Handle original_exception(THREAD, THREAD->pending_exception()); |
| 2958 Handle illegal_state_oop(THREAD, NULL); | |
| 2959 | |
| 2960 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
| 2961 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
| 2962 // isn't really allocated yet and so doesn't become live until later and | |
| 2963 // in unpredicatable places. Instead we must protect the places where we enter the | |
| 2964 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
| 2965 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
| 2966 // unfortunately isn't possible. | |
| 2967 | |
| 2968 THREAD->clear_pending_exception(); | |
| 2969 | |
| 2970 // | |
| 2971 // As far as we are concerned we have returned. If we have a pending exception | |
| 2972 // that will be returned as this invocation's result. However if we get any | |
| 2973 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
| 2974 // will be our final result (i.e. monitor exception trumps a pending exception). | |
| 2975 // | |
| 2976 | |
| 2977 // If we never locked the method (or really passed the point where we would have), | |
| 2978 // there is no need to unlock it (or look for other monitors), since that | |
| 2979 // could not have happened. | |
| 2980 | |
| 2981 if (THREAD->do_not_unlock()) { | |
| 2982 | |
| 2983 // Never locked, reset the flag now because obviously any caller must | |
| 2984 // have passed their point of locking for us to have gotten here. | |
| 2985 | |
| 2986 THREAD->clr_do_not_unlock(); | |
| 2987 } else { | |
| 2988 // At this point we consider that we have returned. We now check that the | |
| 2989 // locks were properly block structured. If we find that they were not | |
| 2990 // used properly we will return with an illegal monitor exception. | |
| 2991 // The exception is checked by the caller not the callee since this | |
| 2992 // checking is considered to be part of the invocation and therefore | |
| 2993 // in the callers scope (JVM spec 8.13). | |
| 2994 // | |
| 2995 // Another weird thing to watch for is if the method was locked | |
| 2996 // recursively and then not exited properly. This means we must | |
| 2997 // examine all the entries in reverse time(and stack) order and | |
| 2998 // unlock as we find them. If we find the method monitor before | |
| 2999 // we are at the initial entry then we should throw an exception. | |
| 3000 // It is not clear the template based interpreter does this | |
| 3001 // correctly | |
| 3002 | |
| 3003 BasicObjectLock* base = istate->monitor_base(); | |
| 3004 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
| 3005 bool method_unlock_needed = METHOD->is_synchronized(); | |
| 3006 // We know the initial monitor was used for the method don't check that | |
| 3007 // slot in the loop | |
| 3008 if (method_unlock_needed) base--; | |
| 3009 | |
| 3010 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
| 3011 while (end < base) { | |
| 3012 oop lockee = end->obj(); | |
| 3013 if (lockee != NULL) { | |
| 3014 BasicLock* lock = end->lock(); | |
| 3015 markOop header = lock->displaced_header(); | |
| 3016 end->set_obj(NULL); | |
|
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|
3017 |
|
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|
3018 if (!lockee->mark()->has_bias_pattern()) { |
|
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|
3019 // If it isn't recursive we either must swap old header or call the runtime |
|
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|
3020 if (header != NULL) { |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3021 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3022 // restore object for the slow case |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3023 end->set_obj(lockee); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3024 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3025 // Prevent any HandleMarkCleaner from freeing our live handles |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3026 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3027 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3028 } |
| 0 | 3029 } |
| 3030 } | |
| 3031 } | |
| 3032 // One error is plenty | |
| 3033 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 3034 { | |
| 3035 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3036 HandleMark __hm(THREAD); | |
| 3037 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 3038 } | |
| 3039 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 3040 illegal_state_oop = THREAD->pending_exception(); | |
| 3041 THREAD->clear_pending_exception(); | |
| 3042 } | |
| 3043 } | |
| 3044 end++; | |
| 3045 } | |
| 3046 // Unlock the method if needed | |
| 3047 if (method_unlock_needed) { | |
| 3048 if (base->obj() == NULL) { | |
| 3049 // The method is already unlocked this is not good. | |
| 3050 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 3051 { | |
| 3052 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3053 HandleMark __hm(THREAD); | |
| 3054 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 3055 } | |
| 3056 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 3057 illegal_state_oop = THREAD->pending_exception(); | |
| 3058 THREAD->clear_pending_exception(); | |
| 3059 } | |
| 3060 } else { | |
| 3061 // | |
| 3062 // The initial monitor is always used for the method | |
| 3063 // However if that slot is no longer the oop for the method it was unlocked | |
| 3064 // and reused by something that wasn't unlocked! | |
| 3065 // | |
| 3066 // deopt can come in with rcvr dead because c2 knows | |
| 3067 // its value is preserved in the monitor. So we can't use locals[0] at all | |
| 3068 // and must use first monitor slot. | |
| 3069 // | |
| 3070 oop rcvr = base->obj(); | |
| 3071 if (rcvr == NULL) { | |
| 3072 if (!suppress_error) { | |
|
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|
3073 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), "", note_nullCheck_trap); |
| 0 | 3074 illegal_state_oop = THREAD->pending_exception(); |
| 3075 THREAD->clear_pending_exception(); | |
| 3076 } | |
|
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|
3077 } else if (UseHeavyMonitors) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3078 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3079 // Prevent any HandleMarkCleaner from freeing our live handles. |
|
48d3d0eb193b
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|
3080 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3081 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3082 } |
|
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3083 if (THREAD->has_pending_exception()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3084 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3085 THREAD->clear_pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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10393
diff
changeset
|
3086 } |
| 0 | 3087 } else { |
| 3088 BasicLock* lock = base->lock(); | |
| 3089 markOop header = lock->displaced_header(); | |
| 3090 base->set_obj(NULL); | |
|
14395
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3091 |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
3092 if (!rcvr->mark()->has_bias_pattern()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3093 base->set_obj(NULL); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3094 // If it isn't recursive we either must swap old header or call the runtime |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3095 if (header != NULL) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3096 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
3097 // restore object for the slow case |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
3098 base->set_obj(rcvr); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
3099 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
3100 // Prevent any HandleMarkCleaner from freeing our live handles |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3101 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3102 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
3103 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3104 if (THREAD->has_pending_exception()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3105 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3106 THREAD->clear_pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3107 } |
| 0 | 3108 } |
| 3109 } | |
| 3110 } | |
| 3111 } | |
| 3112 } | |
| 3113 } | |
| 3114 } | |
|
14395
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|
3115 // Clear the do_not_unlock flag now. |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
3116 THREAD->clr_do_not_unlock(); |
| 0 | 3117 |
| 3118 // | |
| 3119 // Notify jvmti/jvmdi | |
| 3120 // | |
| 3121 // NOTE: we do not notify a method_exit if we have a pending exception, | |
| 3122 // including an exception we generate for unlocking checks. In the former | |
| 3123 // case, JVMDI has already been notified by our call for the exception handler | |
| 3124 // and in both cases as far as JVMDI is concerned we have already returned. | |
| 3125 // If we notify it again JVMDI will be all confused about how many frames | |
| 3126 // are still on the stack (4340444). | |
| 3127 // | |
| 3128 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
| 3129 // method_exit events whenever we leave an activation unless it was done | |
| 3130 // for popframe. This is nothing like jvmdi. However we are passing the | |
| 3131 // tests at the moment (apparently because they are jvmdi based) so rather | |
| 3132 // than change this code and possibly fail tests we will leave it alone | |
| 3133 // (with this note) in anticipation of changing the vm and the tests | |
| 3134 // simultaneously. | |
| 3135 | |
| 3136 | |
| 3137 // | |
| 3138 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
| 3139 | |
| 3140 | |
| 3141 | |
| 3142 #ifdef VM_JVMTI | |
| 3143 if (_jvmti_interp_events) { | |
| 3144 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 3145 // entry/exit events are sent for that thread to track stack depth. | |
| 3146 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
| 3147 { | |
| 3148 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 3149 HandleMark __hm(THREAD); | |
| 3150 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
| 3151 } | |
| 3152 } | |
| 3153 } | |
| 3154 #endif /* VM_JVMTI */ | |
| 3155 | |
| 3156 // | |
| 3157 // See if we are returning any exception | |
| 3158 // A pending exception that was pending prior to a possible popping frame | |
| 3159 // overrides the popping frame. | |
| 3160 // | |
|
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|
3161 assert(!suppress_error || (suppress_error && illegal_state_oop() == NULL), "Error was not suppressed"); |
| 0 | 3162 if (illegal_state_oop() != NULL || original_exception() != NULL) { |
|
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|
3163 // Inform the frame manager we have no result. |
| 0 | 3164 istate->set_msg(throwing_exception); |
| 3165 if (illegal_state_oop() != NULL) | |
| 3166 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
| 3167 else | |
| 3168 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
| 3169 UPDATE_PC_AND_RETURN(0); | |
| 3170 } | |
| 3171 | |
| 3172 if (istate->msg() == popping_frame) { | |
| 3173 // Make it simpler on the assembly code and set the message for the frame pop. | |
| 3174 // returns | |
| 3175 if (istate->prev() == NULL) { | |
| 3176 // We must be returning to a deoptimized frame (because popframe only happens between | |
| 3177 // two interpreted frames). We need to save the current arguments in C heap so that | |
| 3178 // the deoptimized frame when it restarts can copy the arguments to its expression | |
| 3179 // stack and re-execute the call. We also have to notify deoptimization that this | |
| 605 | 3180 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
| 0 | 3181 // java expression stack. Yuck. |
| 3182 // | |
| 3183 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
| 3184 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
| 3185 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
| 3186 } | |
|
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diff
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|
3187 } else { |
|
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diff
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|
3188 istate->set_msg(return_from_method); |
| 0 | 3189 } |
|
1681
126ea7725993
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1552
diff
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|
3190 |
|
126ea7725993
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1552
diff
changeset
|
3191 // Normal return |
|
126ea7725993
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1552
diff
changeset
|
3192 // Advance the pc and return to frame manager |
|
126ea7725993
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1552
diff
changeset
|
3193 UPDATE_PC_AND_RETURN(1); |
| 0 | 3194 } /* handle_return: */ |
| 3195 | |
| 3196 // This is really a fatal error return | |
| 3197 | |
| 3198 finish: | |
| 3199 DECACHE_TOS(); | |
| 3200 DECACHE_PC(); | |
| 3201 | |
| 3202 return; | |
| 3203 } | |
| 3204 | |
| 3205 /* | |
| 3206 * All the code following this point is only produced once and is not present | |
| 3207 * in the JVMTI version of the interpreter | |
| 3208 */ | |
| 3209 | |
| 3210 #ifndef VM_JVMTI | |
| 3211 | |
| 3212 // This constructor should only be used to contruct the object to signal | |
| 3213 // interpreter initialization. All other instances should be created by | |
| 3214 // the frame manager. | |
| 3215 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
| 3216 if (msg != initialize) ShouldNotReachHere(); | |
| 3217 _msg = msg; | |
| 3218 _self_link = this; | |
| 3219 _prev_link = NULL; | |
| 3220 } | |
| 3221 | |
| 3222 // Inline static functions for Java Stack and Local manipulation | |
| 3223 | |
| 3224 // The implementations are platform dependent. We have to worry about alignment | |
| 3225 // issues on some machines which can change on the same platform depending on | |
| 3226 // whether it is an LP64 machine also. | |
| 3227 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
| 3228 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
| 3229 } | |
| 3230 | |
| 3231 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
| 3232 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3233 } | |
| 3234 | |
| 3235 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
| 3236 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3237 } | |
| 3238 | |
| 3239 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
|
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14420
diff
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|
3240 return cast_to_oop(tos [Interpreter::expr_index_at(-offset)]); |
| 0 | 3241 } |
| 3242 | |
| 3243 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
| 3244 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
| 3245 } | |
| 3246 | |
| 3247 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
| 3248 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
| 3249 } | |
| 3250 | |
| 3251 // only used for value types | |
| 3252 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
| 3253 int offset) { | |
| 3254 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3255 } | |
| 3256 | |
| 3257 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
| 3258 int offset) { | |
| 3259 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3260 } | |
| 3261 | |
| 3262 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
| 3263 int offset) { | |
| 3264 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3265 } | |
| 3266 | |
| 3267 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
| 3268 int offset) { | |
| 3269 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3270 } | |
| 3271 | |
| 3272 // needs to be platform dep for the 32 bit platforms. | |
| 3273 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
| 3274 int offset) { | |
| 3275 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
| 3276 } | |
| 3277 | |
| 3278 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
| 3279 address addr, int offset) { | |
| 3280 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
| 3281 ((VMJavaVal64*)addr)->d); | |
| 3282 } | |
| 3283 | |
| 3284 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
| 3285 int offset) { | |
| 3286 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3287 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
| 3288 } | |
| 3289 | |
| 3290 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
| 3291 address addr, int offset) { | |
| 3292 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3293 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
| 3294 ((VMJavaVal64*)addr)->l; | |
| 3295 } | |
| 3296 | |
| 3297 // Locals | |
| 3298 | |
| 3299 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
| 3300 return (address)locals[Interpreter::local_index_at(-offset)]; | |
| 3301 } | |
| 3302 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
| 3303 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
| 3304 } | |
| 3305 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
| 3306 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
| 3307 } | |
| 3308 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
|
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3309 return cast_to_oop(locals[Interpreter::local_index_at(-offset)]); |
| 0 | 3310 } |
| 3311 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
| 3312 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
| 3313 } | |
| 3314 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
| 3315 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
| 3316 } | |
| 3317 | |
| 3318 // Returns the address of locals value. | |
| 3319 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
| 3320 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3321 } | |
| 3322 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
| 3323 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3324 } | |
| 3325 | |
| 3326 // Used for local value or returnAddress | |
| 3327 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
| 3328 address value, int offset) { | |
| 3329 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3330 } | |
| 3331 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
| 3332 jint value, int offset) { | |
| 3333 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3334 } | |
| 3335 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
| 3336 jfloat value, int offset) { | |
| 3337 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3338 } | |
| 3339 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
| 3340 oop value, int offset) { | |
| 3341 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3342 } | |
| 3343 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
| 3344 jdouble value, int offset) { | |
| 3345 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
| 3346 } | |
| 3347 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
| 3348 jlong value, int offset) { | |
| 3349 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
| 3350 } | |
| 3351 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
| 3352 address addr, int offset) { | |
| 3353 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
| 3354 } | |
| 3355 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
| 3356 address addr, int offset) { | |
| 3357 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
| 3358 } | |
| 3359 | |
| 3360 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
| 3361 intptr_t* locals, int locals_offset) { | |
| 3362 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
| 3363 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
| 3364 } | |
| 3365 | |
| 3366 | |
| 3367 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
| 3368 int to_offset) { | |
| 3369 tos[Interpreter::expr_index_at(-to_offset)] = | |
| 3370 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
| 3371 } | |
| 3372 | |
| 3373 void BytecodeInterpreter::dup(intptr_t *tos) { | |
| 3374 copy_stack_slot(tos, -1, 0); | |
| 3375 } | |
| 3376 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
| 3377 copy_stack_slot(tos, -2, 0); | |
| 3378 copy_stack_slot(tos, -1, 1); | |
| 3379 } | |
| 3380 | |
| 3381 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
| 3382 /* insert top word two down */ | |
| 3383 copy_stack_slot(tos, -1, 0); | |
| 3384 copy_stack_slot(tos, -2, -1); | |
| 3385 copy_stack_slot(tos, 0, -2); | |
| 3386 } | |
| 3387 | |
| 3388 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
| 3389 /* insert top word three down */ | |
| 3390 copy_stack_slot(tos, -1, 0); | |
| 3391 copy_stack_slot(tos, -2, -1); | |
| 3392 copy_stack_slot(tos, -3, -2); | |
| 3393 copy_stack_slot(tos, 0, -3); | |
| 3394 } | |
| 3395 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
| 3396 /* insert top 2 slots three down */ | |
| 3397 copy_stack_slot(tos, -1, 1); | |
| 3398 copy_stack_slot(tos, -2, 0); | |
| 3399 copy_stack_slot(tos, -3, -1); | |
| 3400 copy_stack_slot(tos, 1, -2); | |
| 3401 copy_stack_slot(tos, 0, -3); | |
| 3402 } | |
| 3403 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
| 3404 /* insert top 2 slots four down */ | |
| 3405 copy_stack_slot(tos, -1, 1); | |
| 3406 copy_stack_slot(tos, -2, 0); | |
| 3407 copy_stack_slot(tos, -3, -1); | |
| 3408 copy_stack_slot(tos, -4, -2); | |
| 3409 copy_stack_slot(tos, 1, -3); | |
| 3410 copy_stack_slot(tos, 0, -4); | |
| 3411 } | |
| 3412 | |
| 3413 | |
| 3414 void BytecodeInterpreter::swap(intptr_t *tos) { | |
| 3415 // swap top two elements | |
| 3416 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
| 3417 // Copy -2 entry to -1 | |
| 3418 copy_stack_slot(tos, -2, -1); | |
| 3419 // Store saved -1 entry into -2 | |
| 3420 tos[Interpreter::expr_index_at(2)] = val; | |
| 3421 } | |
| 3422 // -------------------------------------------------------------------------------- | |
| 3423 // Non-product code | |
| 3424 #ifndef PRODUCT | |
| 3425 | |
| 3426 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
| 3427 switch (msg) { | |
| 3428 case BytecodeInterpreter::no_request: return("no_request"); | |
| 3429 case BytecodeInterpreter::initialize: return("initialize"); | |
| 3430 // status message to C++ interpreter | |
| 3431 case BytecodeInterpreter::method_entry: return("method_entry"); | |
| 3432 case BytecodeInterpreter::method_resume: return("method_resume"); | |
| 3433 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
| 3434 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
| 3435 // requests to frame manager from C++ interpreter | |
| 3436 case BytecodeInterpreter::call_method: return("call_method"); | |
| 3437 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
| 3438 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
| 3439 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
| 3440 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
| 3441 case BytecodeInterpreter::do_osr: return("do_osr"); | |
| 3442 // deopt | |
| 3443 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
| 3444 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
| 3445 default: return("BAD MSG"); | |
| 3446 } | |
| 3447 } | |
| 3448 void | |
| 3449 BytecodeInterpreter::print() { | |
| 3450 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
| 3451 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
| 3452 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
| 3453 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
| 3454 { | |
| 3455 ResourceMark rm; | |
| 3456 char *method_name = _method->name_and_sig_as_C_string(); | |
| 3457 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
| 3458 } | |
| 3459 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
| 3460 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
| 3461 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
| 3462 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
| 3463 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
| 3464 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
| 3465 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
| 3466 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
| 3467 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
|
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3468 tty->print_cr("native_mirror: " INTPTR_FORMAT, (void*) this->_oop_temp); |
| 0 | 3469 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); |
| 3470 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
| 3471 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
| 3472 #ifdef SPARC | |
| 3473 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
| 3474 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
| 3475 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
| 3476 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
| 3477 #endif | |
| 7994 | 3478 #if !defined(ZERO) |
| 0 | 3479 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
| 7994 | 3480 #endif // !ZERO |
| 0 | 3481 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
| 3482 } | |
| 3483 | |
| 3484 extern "C" { | |
|
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3485 void PI(uintptr_t arg) { |
|
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3486 ((BytecodeInterpreter*)arg)->print(); |
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3487 } |
| 0 | 3488 } |
| 3489 #endif // PRODUCT | |
| 3490 | |
| 3491 #endif // JVMTI | |
| 3492 #endif // CC_INTERP |