Mercurial > hg > graal-compiler
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 14417:f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
Summary: Call OSR migration with last java frame.
Reviewed-by: kvn
| author | goetz |
|---|---|
| date | Fri, 13 Sep 2013 22:50:47 +0200 |
| parents | bdd155477289 |
| children | abe03600372a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 // 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" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "interpreter/interpreterRuntime.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 10233 | 34 #include "oops/methodCounters.hpp" |
| 1972 | 35 #include "oops/objArrayKlass.hpp" |
| 36 #include "oops/oop.inline.hpp" | |
| 37 #include "prims/jvmtiExport.hpp" | |
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38 #include "prims/jvmtiThreadState.hpp" |
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39 #include "runtime/biasedLocking.hpp" |
| 1972 | 40 #include "runtime/frame.inline.hpp" |
| 41 #include "runtime/handles.inline.hpp" | |
| 42 #include "runtime/interfaceSupport.hpp" | |
| 43 #include "runtime/sharedRuntime.hpp" | |
| 44 #include "runtime/threadCritical.hpp" | |
| 45 #include "utilities/exceptions.hpp" | |
| 46 #ifdef TARGET_OS_ARCH_linux_x86 | |
| 47 # include "orderAccess_linux_x86.inline.hpp" | |
| 48 #endif | |
| 49 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 50 # include "orderAccess_linux_sparc.inline.hpp" | |
| 51 #endif | |
| 52 #ifdef TARGET_OS_ARCH_linux_zero | |
| 53 # include "orderAccess_linux_zero.inline.hpp" | |
| 54 #endif | |
| 55 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 56 # include "orderAccess_solaris_x86.inline.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 59 # include "orderAccess_solaris_sparc.inline.hpp" | |
| 60 #endif | |
| 61 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 62 # include "orderAccess_windows_x86.inline.hpp" | |
| 63 #endif | |
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64 #ifdef TARGET_OS_ARCH_linux_arm |
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65 # include "orderAccess_linux_arm.inline.hpp" |
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66 #endif |
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67 #ifdef TARGET_OS_ARCH_linux_ppc |
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68 # include "orderAccess_linux_ppc.inline.hpp" |
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69 #endif |
| 14411 | 70 #ifdef TARGET_OS_ARCH_aix_ppc |
| 71 # include "orderAccess_aix_ppc.inline.hpp" | |
| 72 #endif | |
| 3960 | 73 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 74 # include "orderAccess_bsd_x86.inline.hpp" | |
| 75 #endif | |
| 76 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 77 # include "orderAccess_bsd_zero.inline.hpp" | |
| 78 #endif | |
| 1972 | 79 |
| 0 | 80 |
| 81 // no precompiled headers | |
| 82 #ifdef CC_INTERP | |
| 83 | |
| 84 /* | |
| 85 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
| 86 * rather -then a switch statement. This improves performance because it | |
| 87 * gives us the oportunity to have the instructions that calculate the | |
| 88 * next opcode to jump to be intermixed with the rest of the instructions | |
| 89 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
| 90 */ | |
| 91 #undef USELABELS | |
| 92 #ifdef __GNUC__ | |
| 93 /* | |
| 94 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
| 95 don't use the computed goto approach. | |
| 96 */ | |
| 97 #ifndef ASSERT | |
| 98 #define USELABELS | |
| 99 #endif | |
| 100 #endif | |
| 101 | |
| 102 #undef CASE | |
| 103 #ifdef USELABELS | |
| 104 #define CASE(opcode) opc ## opcode | |
| 105 #define DEFAULT opc_default | |
| 106 #else | |
| 107 #define CASE(opcode) case Bytecodes:: opcode | |
| 108 #define DEFAULT default | |
| 109 #endif | |
| 110 | |
| 111 /* | |
| 112 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
| 113 * opcode before going back to the top of the while loop, rather then having | |
| 114 * the top of the while loop handle it. This provides a better opportunity | |
| 115 * for instruction scheduling. Some compilers just do this prefetch | |
| 116 * automatically. Some actually end up with worse performance if you | |
| 117 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
| 118 */ | |
| 119 #undef PREFETCH_OPCCODE | |
| 120 #define PREFETCH_OPCCODE | |
| 121 | |
| 122 /* | |
| 123 Interpreter safepoint: it is expected that the interpreter will have no live | |
| 124 handles of its own creation live at an interpreter safepoint. Therefore we | |
| 125 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
| 126 since the JavaCalls::call_helper invocation that initiated the chain. | |
| 127 There really shouldn't be any handles remaining to trash but this is cheap | |
| 128 in relation to a safepoint. | |
| 129 */ | |
| 130 #define SAFEPOINT \ | |
| 131 if ( SafepointSynchronize::is_synchronizing()) { \ | |
| 132 { \ | |
| 133 /* zap freed handles rather than GC'ing them */ \ | |
| 134 HandleMarkCleaner __hmc(THREAD); \ | |
| 135 } \ | |
| 136 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
| 137 } | |
| 138 | |
| 139 /* | |
| 140 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
| 141 * the interpreter loop. Should really be a CALL_VM but there | |
| 142 * is no entry point to do the transition to vm so we just | |
| 143 * do it by hand here. | |
| 144 */ | |
| 145 #define VM_JAVA_ERROR_NO_JUMP(name, msg) \ | |
| 146 DECACHE_STATE(); \ | |
| 147 SET_LAST_JAVA_FRAME(); \ | |
| 148 { \ | |
| 149 ThreadInVMfromJava trans(THREAD); \ | |
| 150 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
| 151 } \ | |
| 152 RESET_LAST_JAVA_FRAME(); \ | |
| 153 CACHE_STATE(); | |
| 154 | |
| 155 // Normal throw of a java error | |
| 156 #define VM_JAVA_ERROR(name, msg) \ | |
| 157 VM_JAVA_ERROR_NO_JUMP(name, msg) \ | |
| 158 goto handle_exception; | |
| 159 | |
| 160 #ifdef PRODUCT | |
| 161 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
| 162 #else | |
| 163 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
| 164 { \ | |
| 165 BytecodeCounter::_counter_value++; \ | |
| 166 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
| 167 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
| 168 if (TraceBytecodes) { \ | |
| 169 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
| 170 topOfStack[Interpreter::expr_index_at(1)], \ | |
| 171 topOfStack[Interpreter::expr_index_at(2)]), \ | |
| 172 handle_exception); \ | |
| 173 } \ | |
| 174 } | |
| 175 #endif | |
| 176 | |
| 177 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
| 178 #ifdef VM_JVMTI | |
| 179 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
| 180 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
| 181 breakpoint opcode to get inserted at the current PC to allow the | |
| 182 debugger to coalesce single-step events. | |
| 183 | |
| 184 As a result if we call at_single_stepping_point() we refetch opcode | |
| 185 to get the current opcode. This will override any other prefetching | |
| 186 that might have occurred. | |
| 187 */ | |
| 188 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
| 189 { \ | |
| 190 if (_jvmti_interp_events) { \ | |
| 191 if (JvmtiExport::should_post_single_step()) { \ | |
| 192 DECACHE_STATE(); \ | |
| 193 SET_LAST_JAVA_FRAME(); \ | |
| 194 ThreadInVMfromJava trans(THREAD); \ | |
| 195 JvmtiExport::at_single_stepping_point(THREAD, \ | |
| 196 istate->method(), \ | |
| 197 pc); \ | |
| 198 RESET_LAST_JAVA_FRAME(); \ | |
| 199 CACHE_STATE(); \ | |
| 200 if (THREAD->pop_frame_pending() && \ | |
| 201 !THREAD->pop_frame_in_process()) { \ | |
| 202 goto handle_Pop_Frame; \ | |
| 203 } \ | |
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204 if (THREAD->jvmti_thread_state() && \ |
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205 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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206 goto handle_Early_Return; \ |
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207 } \ |
| 0 | 208 opcode = *pc; \ |
| 209 } \ | |
| 210 } \ | |
| 211 } | |
| 212 #else | |
| 213 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
| 214 #endif | |
| 215 | |
| 216 /* | |
| 217 * CONTINUE - Macro for executing the next opcode. | |
| 218 */ | |
| 219 #undef CONTINUE | |
| 220 #ifdef USELABELS | |
| 221 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
| 222 // initialization (which is is the initialization of the table pointer...) | |
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223 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
| 0 | 224 #define CONTINUE { \ |
| 225 opcode = *pc; \ | |
| 226 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 227 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 228 DISPATCH(opcode); \ | |
| 229 } | |
| 230 #else | |
| 231 #ifdef PREFETCH_OPCCODE | |
| 232 #define CONTINUE { \ | |
| 233 opcode = *pc; \ | |
| 234 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 235 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 236 continue; \ | |
| 237 } | |
| 238 #else | |
| 239 #define CONTINUE { \ | |
| 240 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 241 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 242 continue; \ | |
| 243 } | |
| 244 #endif | |
| 245 #endif | |
| 246 | |
| 247 | |
| 248 #define UPDATE_PC(opsize) {pc += opsize; } | |
| 249 /* | |
| 250 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
| 251 */ | |
| 252 #undef UPDATE_PC_AND_TOS | |
| 253 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
| 254 {pc += opsize; MORE_STACK(stack); } | |
| 255 | |
| 256 /* | |
| 257 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
| 258 * and executing the next opcode. It's somewhat similar to the combination | |
| 259 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
| 260 */ | |
| 261 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
| 262 #ifdef USELABELS | |
| 263 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 264 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 265 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 266 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 267 DISPATCH(opcode); \ | |
| 268 } | |
| 269 | |
| 270 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 271 pc += opsize; opcode = *pc; \ | |
| 272 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 273 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 274 DISPATCH(opcode); \ | |
| 275 } | |
| 276 #else | |
| 277 #ifdef PREFETCH_OPCCODE | |
| 278 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 279 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
| 280 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 281 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 282 goto do_continue; \ | |
| 283 } | |
| 284 | |
| 285 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 286 pc += opsize; opcode = *pc; \ | |
| 287 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 288 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 289 goto do_continue; \ | |
| 290 } | |
| 291 #else | |
| 292 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
| 293 pc += opsize; MORE_STACK(stack); \ | |
| 294 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 295 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 296 goto do_continue; \ | |
| 297 } | |
| 298 | |
| 299 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
| 300 pc += opsize; \ | |
| 301 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
| 302 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
| 303 goto do_continue; \ | |
| 304 } | |
| 305 #endif /* PREFETCH_OPCCODE */ | |
| 306 #endif /* USELABELS */ | |
| 307 | |
| 308 // About to call a new method, update the save the adjusted pc and return to frame manager | |
| 309 #define UPDATE_PC_AND_RETURN(opsize) \ | |
| 310 DECACHE_TOS(); \ | |
| 311 istate->set_bcp(pc+opsize); \ | |
| 312 return; | |
| 313 | |
| 314 | |
| 315 #define METHOD istate->method() | |
| 10233 | 316 #define GET_METHOD_COUNTERS(res) \ |
| 317 res = METHOD->method_counters(); \ | |
| 318 if (res == NULL) { \ | |
| 319 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
| 320 } | |
| 321 | |
| 0 | 322 #define OSR_REQUEST(res, branch_pc) \ |
| 323 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
| 324 /* | |
| 325 * For those opcodes that need to have a GC point on a backwards branch | |
| 326 */ | |
| 327 | |
| 328 // Backedge counting is kind of strange. The asm interpreter will increment | |
| 329 // the backedge counter as a separate counter but it does it's comparisons | |
| 330 // to the sum (scaled) of invocation counter and backedge count to make | |
| 331 // a decision. Seems kind of odd to sum them together like that | |
| 332 | |
| 333 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
| 334 | |
| 335 | |
| 336 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
| 337 if ((skip) <= 0) { \ | |
| 10233 | 338 MethodCounters* mcs; \ |
| 339 GET_METHOD_COUNTERS(mcs); \ | |
| 1078 | 340 if (UseLoopCounter) { \ |
| 0 | 341 bool do_OSR = UseOnStackReplacement; \ |
| 10233 | 342 mcs->backedge_counter()->increment(); \ |
| 343 if (do_OSR) do_OSR = mcs->backedge_counter()->reached_InvocationLimit(); \ | |
| 0 | 344 if (do_OSR) { \ |
| 345 nmethod* osr_nmethod; \ | |
| 346 OSR_REQUEST(osr_nmethod, branch_pc); \ | |
| 347 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
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348 intptr_t* buf; \ |
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349 /* Call OSR migration with last java frame only, no checks. */ \ |
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350 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
| 0 | 351 istate->set_msg(do_osr); \ |
| 352 istate->set_osr_buf((address)buf); \ | |
| 353 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
| 354 return; \ | |
| 355 } \ | |
| 356 } \ | |
| 357 } /* UseCompiler ... */ \ | |
| 10233 | 358 mcs->invocation_counter()->increment(); \ |
| 0 | 359 SAFEPOINT; \ |
| 360 } | |
| 361 | |
| 362 /* | |
| 363 * For those opcodes that need to have a GC point on a backwards branch | |
| 364 */ | |
| 365 | |
| 366 /* | |
| 367 * Macros for caching and flushing the interpreter state. Some local | |
| 368 * variables need to be flushed out to the frame before we do certain | |
| 369 * things (like pushing frames or becomming gc safe) and some need to | |
| 370 * be recached later (like after popping a frame). We could use one | |
| 371 * macro to cache or decache everything, but this would be less then | |
| 372 * optimal because we don't always need to cache or decache everything | |
| 373 * because some things we know are already cached or decached. | |
| 374 */ | |
| 375 #undef DECACHE_TOS | |
| 376 #undef CACHE_TOS | |
| 377 #undef CACHE_PREV_TOS | |
| 378 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
| 379 | |
| 380 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
| 381 | |
| 382 #undef DECACHE_PC | |
| 383 #undef CACHE_PC | |
| 384 #define DECACHE_PC() istate->set_bcp(pc); | |
| 385 #define CACHE_PC() pc = istate->bcp(); | |
| 386 #define CACHE_CP() cp = istate->constants(); | |
| 387 #define CACHE_LOCALS() locals = istate->locals(); | |
| 388 #undef CACHE_FRAME | |
| 389 #define CACHE_FRAME() | |
| 390 | |
| 391 /* | |
| 392 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
| 393 * passed is a null ref. | |
| 394 * On some architectures/platforms it should be possible to do this implicitly | |
| 395 */ | |
| 396 #undef CHECK_NULL | |
| 397 #define CHECK_NULL(obj_) \ | |
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398 if ((obj_) == NULL) { \ |
| 0 | 399 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), ""); \ |
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400 } \ |
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401 VERIFY_OOP(obj_) |
| 0 | 402 |
| 403 #define VMdoubleConstZero() 0.0 | |
| 404 #define VMdoubleConstOne() 1.0 | |
| 405 #define VMlongConstZero() (max_jlong-max_jlong) | |
| 406 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
| 407 | |
| 408 /* | |
| 409 * Alignment | |
| 410 */ | |
| 411 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
| 412 | |
| 413 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
| 414 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
| 415 | |
| 416 // Reload interpreter state after calling the VM or a possible GC | |
| 417 #define CACHE_STATE() \ | |
| 418 CACHE_TOS(); \ | |
| 419 CACHE_PC(); \ | |
| 420 CACHE_CP(); \ | |
| 421 CACHE_LOCALS(); | |
| 422 | |
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423 // Call the VM with last java frame only. |
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424 #define CALL_VM_NAKED_LJF(func) \ |
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425 DECACHE_STATE(); \ |
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426 SET_LAST_JAVA_FRAME(); \ |
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427 func; \ |
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428 RESET_LAST_JAVA_FRAME(); \ |
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429 CACHE_STATE(); |
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430 |
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431 // Call the VM. Don't check for pending exceptions. |
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432 #define CALL_VM_NOCHECK(func) \ |
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433 CALL_VM_NAKED_LJF(func) \ |
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434 if (THREAD->pop_frame_pending() && \ |
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435 !THREAD->pop_frame_in_process()) { \ |
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436 goto handle_Pop_Frame; \ |
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437 } \ |
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438 if (THREAD->jvmti_thread_state() && \ |
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439 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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440 goto handle_Early_Return; \ |
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441 } |
| 0 | 442 |
| 443 // Call the VM and check for pending exceptions | |
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444 #define CALL_VM(func, label) { \ |
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445 CALL_VM_NOCHECK(func); \ |
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446 if (THREAD->has_pending_exception()) goto label; \ |
| 0 | 447 } |
| 448 | |
| 449 /* | |
| 450 * BytecodeInterpreter::run(interpreterState istate) | |
| 451 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
| 452 * | |
| 453 * The real deal. This is where byte codes actually get interpreted. | |
| 454 * Basically it's a big while loop that iterates until we return from | |
| 455 * the method passed in. | |
| 456 * | |
| 457 * The runWithChecks is used if JVMTI is enabled. | |
| 458 * | |
| 459 */ | |
| 460 #if defined(VM_JVMTI) | |
| 461 void | |
| 462 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
| 463 #else | |
| 464 void | |
| 465 BytecodeInterpreter::run(interpreterState istate) { | |
| 466 #endif | |
| 467 | |
| 468 // In order to simplify some tests based on switches set at runtime | |
| 469 // we invoke the interpreter a single time after switches are enabled | |
| 470 // and set simpler to to test variables rather than method calls or complex | |
| 471 // boolean expressions. | |
| 472 | |
| 473 static int initialized = 0; | |
| 474 static int checkit = 0; | |
| 475 static intptr_t* c_addr = NULL; | |
| 476 static intptr_t c_value; | |
| 477 | |
| 478 if (checkit && *c_addr != c_value) { | |
| 479 os::breakpoint(); | |
| 480 } | |
| 481 #ifdef VM_JVMTI | |
| 482 static bool _jvmti_interp_events = 0; | |
| 483 #endif | |
| 484 | |
| 485 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
| 486 | |
| 487 #ifdef ASSERT | |
| 488 if (istate->_msg != initialize) { | |
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489 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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490 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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491 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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492 // for the old JSR292 implementation. |
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493 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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494 // methodOopDesc::extra_stack_entries() because it is computed in |
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495 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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496 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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497 // account for extra_stack_entries() anymore because at the time when it is called |
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498 // EnableInvokeDynamic was already set to false. |
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499 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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500 // switched off because of the wrong classes. |
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501 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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502 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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503 } else { |
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504 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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505 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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506 + 1), "bad stack limit"); |
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507 } |
| 1729 | 508 #ifndef SHARK |
| 509 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
| 510 #endif // !SHARK | |
| 0 | 511 } |
| 512 // Verify linkages. | |
| 513 interpreterState l = istate; | |
| 514 do { | |
| 515 assert(l == l->_self_link, "bad link"); | |
| 516 l = l->_prev_link; | |
| 517 } while (l != NULL); | |
| 518 // Screwups with stack management usually cause us to overwrite istate | |
| 519 // save a copy so we can verify it. | |
| 520 interpreterState orig = istate; | |
| 521 #endif | |
| 522 | |
| 523 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
| 524 register address pc = istate->bcp(); | |
| 525 register jubyte opcode; | |
| 526 register intptr_t* locals = istate->locals(); | |
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527 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
| 0 | 528 #ifdef LOTS_OF_REGS |
| 529 register JavaThread* THREAD = istate->thread(); | |
| 530 #else | |
| 531 #undef THREAD | |
| 532 #define THREAD istate->thread() | |
| 533 #endif | |
| 534 | |
| 535 #ifdef USELABELS | |
| 536 const static void* const opclabels_data[256] = { | |
| 537 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
| 538 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
| 539 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
| 540 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
| 541 | |
| 542 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
| 543 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
| 544 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
| 545 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
| 546 | |
| 547 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
| 548 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
| 549 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
| 550 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
| 551 | |
| 552 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
| 553 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
| 554 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
| 555 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
| 556 | |
| 557 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
| 558 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
| 559 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
| 560 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
| 561 | |
| 562 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
| 563 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
| 564 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
| 565 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
| 566 | |
| 567 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
| 568 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
| 569 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
| 570 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
| 571 | |
| 572 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
| 573 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
| 574 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
| 575 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
| 576 | |
| 577 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
| 578 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
| 579 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
| 580 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
| 581 | |
| 582 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
| 583 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
| 584 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
| 585 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
| 586 | |
| 587 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
| 588 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
| 589 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
| 590 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
| 591 | |
| 592 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
| 593 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
| 2480 | 594 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
| 0 | 595 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
| 596 | |
| 597 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
| 598 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
| 123 | 599 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
| 600 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 601 | |
| 602 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 0 | 603 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 604 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 605 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 606 | |
| 607 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 2480 | 608 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
| 6926 | 609 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
| 0 | 610 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
| 611 | |
| 612 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 613 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 614 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
| 615 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
| 616 }; | |
| 617 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
| 618 #endif /* USELABELS */ | |
| 619 | |
| 620 #ifdef ASSERT | |
| 621 // this will trigger a VERIFY_OOP on entry | |
| 622 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
| 623 oop rcvr = LOCALS_OBJECT(0); | |
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624 VERIFY_OOP(rcvr); |
| 0 | 625 } |
| 626 #endif | |
| 627 // #define HACK | |
| 628 #ifdef HACK | |
| 629 bool interesting = false; | |
| 630 #endif // HACK | |
| 631 | |
| 632 /* QQQ this should be a stack method so we don't know actual direction */ | |
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633 guarantee(istate->msg() == initialize || |
| 0 | 634 topOfStack >= istate->stack_limit() && |
| 635 topOfStack < istate->stack_base(), | |
| 636 "Stack top out of range"); | |
| 637 | |
| 638 switch (istate->msg()) { | |
| 639 case initialize: { | |
| 640 if (initialized++) ShouldNotReachHere(); // Only one initialize call | |
| 641 _compiling = (UseCompiler || CountCompiledCalls); | |
| 642 #ifdef VM_JVMTI | |
| 643 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
| 644 #endif | |
| 645 return; | |
| 646 } | |
| 647 break; | |
| 648 case method_entry: { | |
| 649 THREAD->set_do_not_unlock(); | |
| 650 // count invocations | |
| 651 assert(initialized, "Interpreter not initialized"); | |
| 652 if (_compiling) { | |
| 10233 | 653 MethodCounters* mcs; |
| 654 GET_METHOD_COUNTERS(mcs); | |
| 0 | 655 if (ProfileInterpreter) { |
| 10233 | 656 METHOD->increment_interpreter_invocation_count(THREAD); |
| 0 | 657 } |
| 10233 | 658 mcs->invocation_counter()->increment(); |
| 659 if (mcs->invocation_counter()->reached_InvocationLimit()) { | |
| 0 | 660 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
| 661 | |
| 662 // We no longer retry on a counter overflow | |
| 663 | |
| 664 // istate->set_msg(retry_method); | |
| 665 // THREAD->clr_do_not_unlock(); | |
| 666 // return; | |
| 667 } | |
| 668 SAFEPOINT; | |
| 669 } | |
| 670 | |
| 671 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 672 // initialize | |
| 673 os::breakpoint(); | |
| 674 } | |
| 675 | |
| 676 #ifdef HACK | |
| 677 { | |
| 678 ResourceMark rm; | |
| 679 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 680 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 681 tty->print_cr("entering: depth %d bci: %d", | |
| 682 (istate->_stack_base - istate->_stack), | |
| 683 istate->_bcp - istate->_method->code_base()); | |
| 684 interesting = true; | |
| 685 } | |
| 686 } | |
| 687 #endif // HACK | |
| 688 | |
| 689 | |
| 690 // lock method if synchronized | |
| 691 if (METHOD->is_synchronized()) { | |
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692 // oop rcvr = locals[0].j.r; |
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693 oop rcvr; |
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694 if (METHOD->is_static()) { |
|
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695 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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696 } else { |
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697 rcvr = LOCALS_OBJECT(0); |
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698 VERIFY_OOP(rcvr); |
|
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699 } |
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700 // The initial monitor is ours for the taking |
|
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701 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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702 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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703 mon->set_obj(rcvr); |
|
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704 bool success = false; |
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705 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
|
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706 markOop mark = rcvr->mark(); |
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707 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
|
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708 // Implies UseBiasedLocking. |
|
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709 if (mark->has_bias_pattern()) { |
|
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710 uintptr_t thread_ident; |
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711 uintptr_t anticipated_bias_locking_value; |
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712 thread_ident = (uintptr_t)istate->thread(); |
|
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713 anticipated_bias_locking_value = |
|
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714 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
|
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715 ~((uintptr_t) markOopDesc::age_mask_in_place); |
|
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716 |
|
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717 if (anticipated_bias_locking_value == 0) { |
|
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718 // Already biased towards this thread, nothing to do. |
|
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719 if (PrintBiasedLockingStatistics) { |
|
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|
720 (* BiasedLocking::biased_lock_entry_count_addr())++; |
|
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|
721 } |
|
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|
722 success = true; |
|
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|
723 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
|
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|
724 // Try to revoke bias. |
|
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|
725 markOop header = rcvr->klass()->prototype_header(); |
|
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|
726 if (hash != markOopDesc::no_hash) { |
|
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727 header = header->copy_set_hash(hash); |
|
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|
728 } |
|
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|
729 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
|
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|
730 if (PrintBiasedLockingStatistics) |
|
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|
731 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
|
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|
732 } |
|
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|
733 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
|
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|
734 // Try to rebias. |
|
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|
735 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
|
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|
736 if (hash != markOopDesc::no_hash) { |
|
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|
737 new_header = new_header->copy_set_hash(hash); |
|
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|
738 } |
|
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|
739 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
|
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|
740 if (PrintBiasedLockingStatistics) { |
|
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741 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
| 0 | 742 } |
| 743 } else { | |
|
14395
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|
744 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
|
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|
745 } |
|
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|
746 success = true; |
|
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|
747 } else { |
|
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|
748 // Try to bias towards thread in case object is anonymously biased. |
|
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|
749 markOop header = (markOop) ((uintptr_t) mark & |
|
48d3d0eb193b
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|
750 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
|
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|
751 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
|
48d3d0eb193b
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|
752 if (hash != markOopDesc::no_hash) { |
|
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|
753 header = header->copy_set_hash(hash); |
|
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|
754 } |
|
48d3d0eb193b
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changeset
|
755 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
|
48d3d0eb193b
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changeset
|
756 // Debugging hint. |
|
48d3d0eb193b
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|
757 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
758 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
759 if (PrintBiasedLockingStatistics) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
760 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
761 } |
|
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diff
changeset
|
762 } else { |
|
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diff
changeset
|
763 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
764 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
765 success = true; |
|
48d3d0eb193b
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|
766 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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changeset
|
767 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
768 |
|
48d3d0eb193b
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diff
changeset
|
769 // Traditional lightweight locking. |
|
48d3d0eb193b
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changeset
|
770 if (!success) { |
|
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|
771 markOop displaced = rcvr->mark()->set_unlocked(); |
|
48d3d0eb193b
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|
772 mon->lock()->set_displaced_header(displaced); |
|
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changeset
|
773 bool call_vm = UseHeavyMonitors; |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
774 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
|
48d3d0eb193b
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changeset
|
775 // Is it simple recursive case? |
|
48d3d0eb193b
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|
776 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
|
48d3d0eb193b
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changeset
|
777 mon->lock()->set_displaced_header(NULL); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
778 } else { |
|
48d3d0eb193b
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changeset
|
779 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
| 0 | 780 } |
| 781 } | |
|
14395
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|
782 } |
| 0 | 783 } |
| 784 THREAD->clr_do_not_unlock(); | |
| 785 | |
| 786 // Notify jvmti | |
| 787 #ifdef VM_JVMTI | |
| 788 if (_jvmti_interp_events) { | |
| 789 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 790 // entry/exit events are sent for that thread to track stack depth. | |
| 791 if (THREAD->is_interp_only_mode()) { | |
| 792 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
| 793 handle_exception); | |
| 794 } | |
| 795 } | |
| 796 #endif /* VM_JVMTI */ | |
| 797 | |
| 798 goto run; | |
| 799 } | |
| 800 | |
| 801 case popping_frame: { | |
| 802 // returned from a java call to pop the frame, restart the call | |
| 803 // clear the message so we don't confuse ourselves later | |
| 804 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
| 805 istate->set_msg(no_request); | |
| 806 THREAD->clr_pop_frame_in_process(); | |
| 807 goto run; | |
| 808 } | |
| 809 | |
| 810 case method_resume: { | |
| 811 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
| 812 // resume | |
| 813 os::breakpoint(); | |
| 814 } | |
| 815 #ifdef HACK | |
| 816 { | |
| 817 ResourceMark rm; | |
| 818 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
| 819 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
| 820 tty->print_cr("resume: depth %d bci: %d", | |
| 821 (istate->_stack_base - istate->_stack) , | |
| 822 istate->_bcp - istate->_method->code_base()); | |
| 823 interesting = true; | |
| 824 } | |
| 825 } | |
| 826 #endif // HACK | |
| 827 // returned from a java call, continue executing. | |
| 828 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
| 829 goto handle_Pop_Frame; | |
| 830 } | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
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14399
diff
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|
831 if (THREAD->jvmti_thread_state() && |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
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|
832 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
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diff
changeset
|
833 goto handle_Early_Return; |
|
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|
834 } |
| 0 | 835 |
| 836 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 837 // Update the pc by the saved amount of the invoke bytecode size | |
| 838 UPDATE_PC(istate->bcp_advance()); | |
| 839 goto run; | |
| 840 } | |
| 841 | |
| 842 case deopt_resume2: { | |
| 843 // Returned from an opcode that will reexecute. Deopt was | |
| 844 // a result of a PopFrame request. | |
| 845 // | |
| 846 goto run; | |
| 847 } | |
| 848 | |
| 849 case deopt_resume: { | |
| 850 // Returned from an opcode that has completed. The stack has | |
| 851 // the result all we need to do is skip across the bytecode | |
| 852 // and continue (assuming there is no exception pending) | |
| 853 // | |
| 854 // compute continuation length | |
| 855 // | |
| 856 // Note: it is possible to deopt at a return_register_finalizer opcode | |
| 857 // because this requires entering the vm to do the registering. While the | |
| 858 // opcode is complete we can't advance because there are no more opcodes | |
| 859 // much like trying to deopt at a poll return. In that has we simply | |
| 860 // get out of here | |
| 861 // | |
| 2142 | 862 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
| 0 | 863 // this will do the right thing even if an exception is pending. |
| 864 goto handle_return; | |
| 865 } | |
| 2142 | 866 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
| 0 | 867 if (THREAD->has_pending_exception()) goto handle_exception; |
| 868 goto run; | |
| 869 } | |
| 870 case got_monitors: { | |
| 871 // continue locking now that we have a monitor to use | |
| 872 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
| 873 oop lockee = STACK_OBJECT(-1); | |
|
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874 VERIFY_OOP(lockee); |
| 0 | 875 // derefing's lockee ought to provoke implicit null check |
| 876 // find a free monitor | |
| 877 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
| 878 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
| 879 entry->set_obj(lockee); | |
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880 bool success = false; |
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881 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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882 |
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883 markOop mark = lockee->mark(); |
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884 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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885 // implies UseBiasedLocking |
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886 if (mark->has_bias_pattern()) { |
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887 uintptr_t thread_ident; |
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888 uintptr_t anticipated_bias_locking_value; |
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889 thread_ident = (uintptr_t)istate->thread(); |
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890 anticipated_bias_locking_value = |
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891 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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892 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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893 |
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894 if (anticipated_bias_locking_value == 0) { |
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895 // already biased towards this thread, nothing to do |
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896 if (PrintBiasedLockingStatistics) { |
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897 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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898 } |
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899 success = true; |
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900 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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901 // try revoke bias |
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902 markOop header = lockee->klass()->prototype_header(); |
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903 if (hash != markOopDesc::no_hash) { |
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904 header = header->copy_set_hash(hash); |
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905 } |
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906 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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907 if (PrintBiasedLockingStatistics) { |
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908 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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909 } |
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910 } |
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911 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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912 // try rebias |
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913 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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914 if (hash != markOopDesc::no_hash) { |
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915 new_header = new_header->copy_set_hash(hash); |
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916 } |
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917 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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918 if (PrintBiasedLockingStatistics) { |
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919 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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920 } |
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921 } else { |
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922 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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923 } |
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924 success = true; |
| 0 | 925 } else { |
|
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926 // try to bias towards thread in case object is anonymously biased |
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927 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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928 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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929 if (hash != markOopDesc::no_hash) { |
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930 header = header->copy_set_hash(hash); |
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931 } |
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932 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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933 // debugging hint |
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934 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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935 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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936 if (PrintBiasedLockingStatistics) { |
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937 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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938 } |
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939 } else { |
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940 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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941 } |
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942 success = true; |
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943 } |
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944 } |
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945 |
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946 // traditional lightweight locking |
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947 if (!success) { |
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948 markOop displaced = lockee->mark()->set_unlocked(); |
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949 entry->lock()->set_displaced_header(displaced); |
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950 bool call_vm = UseHeavyMonitors; |
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951 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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952 // Is it simple recursive case? |
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953 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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954 entry->lock()->set_displaced_header(NULL); |
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955 } else { |
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956 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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957 } |
| 0 | 958 } |
| 959 } | |
| 960 UPDATE_PC_AND_TOS(1, -1); | |
| 961 goto run; | |
| 962 } | |
| 963 default: { | |
| 964 fatal("Unexpected message from frame manager"); | |
| 965 } | |
| 966 } | |
| 967 | |
| 968 run: | |
| 969 | |
| 970 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
| 971 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 972 #ifdef PREFETCH_OPCCODE | |
| 973 opcode = *pc; /* prefetch first opcode */ | |
| 974 #endif | |
| 975 | |
| 976 #ifndef USELABELS | |
| 977 while (1) | |
| 978 #endif | |
| 979 { | |
| 980 #ifndef PREFETCH_OPCCODE | |
| 981 opcode = *pc; | |
| 982 #endif | |
| 983 // Seems like this happens twice per opcode. At worst this is only | |
| 984 // need at entry to the loop. | |
| 985 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
| 986 /* Using this labels avoids double breakpoints when quickening and | |
| 987 * when returing from transition frames. | |
| 988 */ | |
| 989 opcode_switch: | |
| 990 assert(istate == orig, "Corrupted istate"); | |
| 991 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
| 992 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
| 993 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
| 994 | |
| 995 #ifdef USELABELS | |
| 996 DISPATCH(opcode); | |
| 997 #else | |
| 998 switch (opcode) | |
| 999 #endif | |
| 1000 { | |
| 1001 CASE(_nop): | |
| 1002 UPDATE_PC_AND_CONTINUE(1); | |
| 1003 | |
| 1004 /* Push miscellaneous constants onto the stack. */ | |
| 1005 | |
| 1006 CASE(_aconst_null): | |
| 1007 SET_STACK_OBJECT(NULL, 0); | |
| 1008 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1009 | |
| 1010 #undef OPC_CONST_n | |
| 1011 #define OPC_CONST_n(opcode, const_type, value) \ | |
| 1012 CASE(opcode): \ | |
| 1013 SET_STACK_ ## const_type(value, 0); \ | |
| 1014 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1015 | |
| 1016 OPC_CONST_n(_iconst_m1, INT, -1); | |
| 1017 OPC_CONST_n(_iconst_0, INT, 0); | |
| 1018 OPC_CONST_n(_iconst_1, INT, 1); | |
| 1019 OPC_CONST_n(_iconst_2, INT, 2); | |
| 1020 OPC_CONST_n(_iconst_3, INT, 3); | |
| 1021 OPC_CONST_n(_iconst_4, INT, 4); | |
| 1022 OPC_CONST_n(_iconst_5, INT, 5); | |
| 1023 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
| 1024 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
| 1025 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
| 1026 | |
| 1027 #undef OPC_CONST2_n | |
| 1028 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
| 1029 CASE(_##opcname): \ | |
| 1030 { \ | |
| 1031 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
| 1032 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1033 } | |
| 1034 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
| 1035 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
| 1036 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
| 1037 OPC_CONST2_n(lconst_1, One, long, LONG); | |
| 1038 | |
| 1039 /* Load constant from constant pool: */ | |
| 1040 | |
| 1041 /* Push a 1-byte signed integer value onto the stack. */ | |
| 1042 CASE(_bipush): | |
| 1043 SET_STACK_INT((jbyte)(pc[1]), 0); | |
| 1044 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1045 | |
| 1046 /* Push a 2-byte signed integer constant onto the stack. */ | |
| 1047 CASE(_sipush): | |
| 1048 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
| 1049 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 1050 | |
| 1051 /* load from local variable */ | |
| 1052 | |
| 1053 CASE(_aload): | |
|
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1054 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
| 0 | 1055 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
| 1056 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1057 | |
| 1058 CASE(_iload): | |
| 1059 CASE(_fload): | |
| 1060 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
| 1061 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
| 1062 | |
| 1063 CASE(_lload): | |
| 1064 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
| 1065 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1066 | |
| 1067 CASE(_dload): | |
| 1068 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
| 1069 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
| 1070 | |
| 1071 #undef OPC_LOAD_n | |
| 1072 #define OPC_LOAD_n(num) \ | |
| 1073 CASE(_aload_##num): \ | |
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1074 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
| 0 | 1075 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
| 1076 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1077 \ | |
| 1078 CASE(_iload_##num): \ | |
| 1079 CASE(_fload_##num): \ | |
| 1080 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
| 1081 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
| 1082 \ | |
| 1083 CASE(_lload_##num): \ | |
| 1084 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
| 1085 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
| 1086 CASE(_dload_##num): \ | |
| 1087 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
| 1088 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1089 | |
| 1090 OPC_LOAD_n(0); | |
| 1091 OPC_LOAD_n(1); | |
| 1092 OPC_LOAD_n(2); | |
| 1093 OPC_LOAD_n(3); | |
| 1094 | |
| 1095 /* store to a local variable */ | |
| 1096 | |
| 1097 CASE(_astore): | |
| 1098 astore(topOfStack, -1, locals, pc[1]); | |
| 1099 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1100 | |
| 1101 CASE(_istore): | |
| 1102 CASE(_fstore): | |
| 1103 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
| 1104 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
| 1105 | |
| 1106 CASE(_lstore): | |
| 1107 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
| 1108 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1109 | |
| 1110 CASE(_dstore): | |
| 1111 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
| 1112 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
| 1113 | |
| 1114 CASE(_wide): { | |
| 1115 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
| 1116 | |
| 1117 opcode = pc[1]; | |
| 1118 switch(opcode) { | |
| 1119 case Bytecodes::_aload: | |
|
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1120 VERIFY_OOP(LOCALS_OBJECT(reg)); |
| 0 | 1121 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
| 1122 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1123 | |
| 1124 case Bytecodes::_iload: | |
| 1125 case Bytecodes::_fload: | |
| 1126 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
| 1127 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
| 1128 | |
| 1129 case Bytecodes::_lload: | |
| 1130 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1131 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1132 | |
| 1133 case Bytecodes::_dload: | |
| 1134 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
| 1135 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
| 1136 | |
| 1137 case Bytecodes::_astore: | |
| 1138 astore(topOfStack, -1, locals, reg); | |
| 1139 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1140 | |
| 1141 case Bytecodes::_istore: | |
| 1142 case Bytecodes::_fstore: | |
| 1143 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
| 1144 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
| 1145 | |
| 1146 case Bytecodes::_lstore: | |
| 1147 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
| 1148 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1149 | |
| 1150 case Bytecodes::_dstore: | |
| 1151 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
| 1152 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
| 1153 | |
| 1154 case Bytecodes::_iinc: { | |
| 1155 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
| 1156 // Be nice to see what this generates.... QQQ | |
| 1157 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
| 1158 UPDATE_PC_AND_CONTINUE(6); | |
| 1159 } | |
| 1160 case Bytecodes::_ret: | |
| 1161 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); | |
| 1162 UPDATE_PC_AND_CONTINUE(0); | |
| 1163 default: | |
| 1164 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode"); | |
| 1165 } | |
| 1166 } | |
| 1167 | |
| 1168 | |
| 1169 #undef OPC_STORE_n | |
| 1170 #define OPC_STORE_n(num) \ | |
| 1171 CASE(_astore_##num): \ | |
| 1172 astore(topOfStack, -1, locals, num); \ | |
| 1173 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1174 CASE(_istore_##num): \ | |
| 1175 CASE(_fstore_##num): \ | |
| 1176 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
| 1177 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1178 | |
| 1179 OPC_STORE_n(0); | |
| 1180 OPC_STORE_n(1); | |
| 1181 OPC_STORE_n(2); | |
| 1182 OPC_STORE_n(3); | |
| 1183 | |
| 1184 #undef OPC_DSTORE_n | |
| 1185 #define OPC_DSTORE_n(num) \ | |
| 1186 CASE(_dstore_##num): \ | |
| 1187 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
| 1188 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1189 CASE(_lstore_##num): \ | |
| 1190 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
| 1191 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1192 | |
| 1193 OPC_DSTORE_n(0); | |
| 1194 OPC_DSTORE_n(1); | |
| 1195 OPC_DSTORE_n(2); | |
| 1196 OPC_DSTORE_n(3); | |
| 1197 | |
| 1198 /* stack pop, dup, and insert opcodes */ | |
| 1199 | |
| 1200 | |
| 1201 CASE(_pop): /* Discard the top item on the stack */ | |
| 1202 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1203 | |
| 1204 | |
| 1205 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
| 1206 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
| 1207 | |
| 1208 | |
| 1209 CASE(_dup): /* Duplicate the top item on the stack */ | |
| 1210 dup(topOfStack); | |
| 1211 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1212 | |
| 1213 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
| 1214 dup2(topOfStack); | |
| 1215 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1216 | |
| 1217 CASE(_dup_x1): /* insert top word two down */ | |
| 1218 dup_x1(topOfStack); | |
| 1219 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1220 | |
| 1221 CASE(_dup_x2): /* insert top word three down */ | |
| 1222 dup_x2(topOfStack); | |
| 1223 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1224 | |
| 1225 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
| 1226 dup2_x1(topOfStack); | |
| 1227 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1228 | |
| 1229 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
| 1230 dup2_x2(topOfStack); | |
| 1231 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1232 | |
| 1233 CASE(_swap): { /* swap top two elements on the stack */ | |
| 1234 swap(topOfStack); | |
| 1235 UPDATE_PC_AND_CONTINUE(1); | |
| 1236 } | |
| 1237 | |
| 1238 /* Perform various binary integer operations */ | |
| 1239 | |
| 1240 #undef OPC_INT_BINARY | |
| 1241 #define OPC_INT_BINARY(opcname, opname, test) \ | |
| 1242 CASE(_i##opcname): \ | |
| 1243 if (test && (STACK_INT(-1) == 0)) { \ | |
| 1244 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1245 "/ by zero"); \ |
| 0 | 1246 } \ |
| 1247 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1248 STACK_INT(-1)), \ | |
| 1249 -2); \ | |
| 1250 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1251 CASE(_l##opcname): \ | |
| 1252 { \ | |
| 1253 if (test) { \ | |
| 1254 jlong l1 = STACK_LONG(-1); \ | |
| 1255 if (VMlongEqz(l1)) { \ | |
| 1256 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
| 1257 "/ by long zero"); \ | |
| 1258 } \ | |
| 1259 } \ | |
| 1260 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
| 1261 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
| 1262 STACK_LONG(-1)), \ | |
| 1263 -3); \ | |
| 1264 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1265 } | |
| 1266 | |
| 1267 OPC_INT_BINARY(add, Add, 0); | |
| 1268 OPC_INT_BINARY(sub, Sub, 0); | |
| 1269 OPC_INT_BINARY(mul, Mul, 0); | |
| 1270 OPC_INT_BINARY(and, And, 0); | |
| 1271 OPC_INT_BINARY(or, Or, 0); | |
| 1272 OPC_INT_BINARY(xor, Xor, 0); | |
| 1273 OPC_INT_BINARY(div, Div, 1); | |
| 1274 OPC_INT_BINARY(rem, Rem, 1); | |
| 1275 | |
| 1276 | |
| 1277 /* Perform various binary floating number operations */ | |
| 1278 /* On some machine/platforms/compilers div zero check can be implicit */ | |
| 1279 | |
| 1280 #undef OPC_FLOAT_BINARY | |
| 1281 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
| 1282 CASE(_d##opcname): { \ | |
| 1283 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
| 1284 STACK_DOUBLE(-1)), \ | |
| 1285 -3); \ | |
| 1286 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
| 1287 } \ | |
| 1288 CASE(_f##opcname): \ | |
| 1289 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
| 1290 STACK_FLOAT(-1)), \ | |
| 1291 -2); \ | |
| 1292 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1293 | |
| 1294 | |
| 1295 OPC_FLOAT_BINARY(add, Add); | |
| 1296 OPC_FLOAT_BINARY(sub, Sub); | |
| 1297 OPC_FLOAT_BINARY(mul, Mul); | |
| 1298 OPC_FLOAT_BINARY(div, Div); | |
| 1299 OPC_FLOAT_BINARY(rem, Rem); | |
| 1300 | |
| 1301 /* Shift operations | |
| 1302 * Shift left int and long: ishl, lshl | |
| 1303 * Logical shift right int and long w/zero extension: iushr, lushr | |
| 1304 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
| 1305 */ | |
| 1306 | |
| 1307 #undef OPC_SHIFT_BINARY | |
| 1308 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
| 1309 CASE(_i##opcname): \ | |
| 1310 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
| 1311 STACK_INT(-1)), \ | |
| 1312 -2); \ | |
| 1313 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1314 CASE(_l##opcname): \ | |
| 1315 { \ | |
| 1316 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
| 1317 STACK_INT(-1)), \ | |
| 1318 -2); \ | |
| 1319 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1320 } | |
| 1321 | |
| 1322 OPC_SHIFT_BINARY(shl, Shl); | |
| 1323 OPC_SHIFT_BINARY(shr, Shr); | |
| 1324 OPC_SHIFT_BINARY(ushr, Ushr); | |
| 1325 | |
| 1326 /* Increment local variable by constant */ | |
| 1327 CASE(_iinc): | |
| 1328 { | |
| 1329 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
| 1330 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
| 1331 UPDATE_PC_AND_CONTINUE(3); | |
| 1332 } | |
| 1333 | |
| 1334 /* negate the value on the top of the stack */ | |
| 1335 | |
| 1336 CASE(_ineg): | |
| 1337 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
| 1338 UPDATE_PC_AND_CONTINUE(1); | |
| 1339 | |
| 1340 CASE(_fneg): | |
| 1341 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
| 1342 UPDATE_PC_AND_CONTINUE(1); | |
| 1343 | |
| 1344 CASE(_lneg): | |
| 1345 { | |
| 1346 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
| 1347 UPDATE_PC_AND_CONTINUE(1); | |
| 1348 } | |
| 1349 | |
| 1350 CASE(_dneg): | |
| 1351 { | |
| 1352 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
| 1353 UPDATE_PC_AND_CONTINUE(1); | |
| 1354 } | |
| 1355 | |
| 1356 /* Conversion operations */ | |
| 1357 | |
| 1358 CASE(_i2f): /* convert top of stack int to float */ | |
| 1359 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
| 1360 UPDATE_PC_AND_CONTINUE(1); | |
| 1361 | |
| 1362 CASE(_i2l): /* convert top of stack int to long */ | |
| 1363 { | |
| 1364 // this is ugly QQQ | |
| 1365 jlong r = VMint2Long(STACK_INT(-1)); | |
| 1366 MORE_STACK(-1); // Pop | |
| 1367 SET_STACK_LONG(r, 1); | |
| 1368 | |
| 1369 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1370 } | |
| 1371 | |
| 1372 CASE(_i2d): /* convert top of stack int to double */ | |
| 1373 { | |
| 1374 // this is ugly QQQ (why cast to jlong?? ) | |
| 1375 jdouble r = (jlong)STACK_INT(-1); | |
| 1376 MORE_STACK(-1); // Pop | |
| 1377 SET_STACK_DOUBLE(r, 1); | |
| 1378 | |
| 1379 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1380 } | |
| 1381 | |
| 1382 CASE(_l2i): /* convert top of stack long to int */ | |
| 1383 { | |
| 1384 jint r = VMlong2Int(STACK_LONG(-1)); | |
| 1385 MORE_STACK(-2); // Pop | |
| 1386 SET_STACK_INT(r, 0); | |
| 1387 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1388 } | |
| 1389 | |
| 1390 CASE(_l2f): /* convert top of stack long to float */ | |
| 1391 { | |
| 1392 jlong r = STACK_LONG(-1); | |
| 1393 MORE_STACK(-2); // Pop | |
| 1394 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
| 1395 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1396 } | |
| 1397 | |
| 1398 CASE(_l2d): /* convert top of stack long to double */ | |
| 1399 { | |
| 1400 jlong r = STACK_LONG(-1); | |
| 1401 MORE_STACK(-2); // Pop | |
| 1402 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
| 1403 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1404 } | |
| 1405 | |
| 1406 CASE(_f2i): /* Convert top of stack float to int */ | |
| 1407 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
| 1408 UPDATE_PC_AND_CONTINUE(1); | |
| 1409 | |
| 1410 CASE(_f2l): /* convert top of stack float to long */ | |
| 1411 { | |
| 1412 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
| 1413 MORE_STACK(-1); // POP | |
| 1414 SET_STACK_LONG(r, 1); | |
| 1415 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1416 } | |
| 1417 | |
| 1418 CASE(_f2d): /* convert top of stack float to double */ | |
| 1419 { | |
| 1420 jfloat f; | |
| 1421 jdouble r; | |
| 1422 f = STACK_FLOAT(-1); | |
| 1423 r = (jdouble) f; | |
| 1424 MORE_STACK(-1); // POP | |
| 1425 SET_STACK_DOUBLE(r, 1); | |
| 1426 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1427 } | |
| 1428 | |
| 1429 CASE(_d2i): /* convert top of stack double to int */ | |
| 1430 { | |
| 1431 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
| 1432 MORE_STACK(-2); | |
| 1433 SET_STACK_INT(r1, 0); | |
| 1434 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1435 } | |
| 1436 | |
| 1437 CASE(_d2f): /* convert top of stack double to float */ | |
| 1438 { | |
| 1439 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
| 1440 MORE_STACK(-2); | |
| 1441 SET_STACK_FLOAT(r1, 0); | |
| 1442 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1443 } | |
| 1444 | |
| 1445 CASE(_d2l): /* convert top of stack double to long */ | |
| 1446 { | |
| 1447 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
| 1448 MORE_STACK(-2); | |
| 1449 SET_STACK_LONG(r1, 1); | |
| 1450 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
| 1451 } | |
| 1452 | |
| 1453 CASE(_i2b): | |
| 1454 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
| 1455 UPDATE_PC_AND_CONTINUE(1); | |
| 1456 | |
| 1457 CASE(_i2c): | |
| 1458 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
| 1459 UPDATE_PC_AND_CONTINUE(1); | |
| 1460 | |
| 1461 CASE(_i2s): | |
| 1462 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
| 1463 UPDATE_PC_AND_CONTINUE(1); | |
| 1464 | |
| 1465 /* comparison operators */ | |
| 1466 | |
| 1467 | |
| 1468 #define COMPARISON_OP(name, comparison) \ | |
| 1469 CASE(_if_icmp##name): { \ | |
| 1470 int skip = (STACK_INT(-2) comparison STACK_INT(-1)) \ | |
| 1471 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
| 1472 address branch_pc = pc; \ | |
| 1473 UPDATE_PC_AND_TOS(skip, -2); \ | |
| 1474 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1475 CONTINUE; \ | |
| 1476 } \ | |
| 1477 CASE(_if##name): { \ | |
| 1478 int skip = (STACK_INT(-1) comparison 0) \ | |
| 1479 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
| 1480 address branch_pc = pc; \ | |
| 1481 UPDATE_PC_AND_TOS(skip, -1); \ | |
| 1482 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1483 CONTINUE; \ | |
| 1484 } | |
| 1485 | |
| 1486 #define COMPARISON_OP2(name, comparison) \ | |
| 1487 COMPARISON_OP(name, comparison) \ | |
| 1488 CASE(_if_acmp##name): { \ | |
| 1489 int skip = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)) \ | |
| 1490 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
| 1491 address branch_pc = pc; \ | |
| 1492 UPDATE_PC_AND_TOS(skip, -2); \ | |
| 1493 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1494 CONTINUE; \ | |
| 1495 } | |
| 1496 | |
| 1497 #define NULL_COMPARISON_NOT_OP(name) \ | |
| 1498 CASE(_if##name): { \ | |
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1499 int skip = (!(STACK_OBJECT(-1) == NULL)) \ |
| 0 | 1500 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1501 address branch_pc = pc; \ | |
| 1502 UPDATE_PC_AND_TOS(skip, -1); \ | |
| 1503 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1504 CONTINUE; \ | |
| 1505 } | |
| 1506 | |
| 1507 #define NULL_COMPARISON_OP(name) \ | |
| 1508 CASE(_if##name): { \ | |
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1509 int skip = ((STACK_OBJECT(-1) == NULL)) \ |
| 0 | 1510 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
| 1511 address branch_pc = pc; \ | |
| 1512 UPDATE_PC_AND_TOS(skip, -1); \ | |
| 1513 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
| 1514 CONTINUE; \ | |
| 1515 } | |
| 1516 COMPARISON_OP(lt, <); | |
| 1517 COMPARISON_OP(gt, >); | |
| 1518 COMPARISON_OP(le, <=); | |
| 1519 COMPARISON_OP(ge, >=); | |
| 1520 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
| 1521 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
| 1522 NULL_COMPARISON_OP(null); | |
| 1523 NULL_COMPARISON_NOT_OP(nonnull); | |
| 1524 | |
| 1525 /* Goto pc at specified offset in switch table. */ | |
| 1526 | |
| 1527 CASE(_tableswitch): { | |
| 1528 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1529 int32_t key = STACK_INT(-1); | |
| 1530 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
| 1531 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
| 1532 int32_t skip; | |
| 1533 key -= low; | |
| 1534 skip = ((uint32_t) key > (uint32_t)(high - low)) | |
| 1535 ? Bytes::get_Java_u4((address)&lpc[0]) | |
| 1536 : Bytes::get_Java_u4((address)&lpc[key + 3]); | |
| 1537 // Does this really need a full backedge check (osr?) | |
| 1538 address branch_pc = pc; | |
| 1539 UPDATE_PC_AND_TOS(skip, -1); | |
| 1540 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1541 CONTINUE; | |
| 1542 } | |
| 1543 | |
| 1544 /* Goto pc whose table entry matches specified key */ | |
| 1545 | |
| 1546 CASE(_lookupswitch): { | |
| 1547 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
| 1548 int32_t key = STACK_INT(-1); | |
| 1549 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
| 1550 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); | |
| 1551 while (--npairs >= 0) { | |
| 1552 lpc += 2; | |
| 1553 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { | |
| 1554 skip = Bytes::get_Java_u4((address)&lpc[1]); | |
| 1555 break; | |
| 1556 } | |
| 1557 } | |
| 1558 address branch_pc = pc; | |
| 1559 UPDATE_PC_AND_TOS(skip, -1); | |
| 1560 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
| 1561 CONTINUE; | |
| 1562 } | |
| 1563 | |
| 1564 CASE(_fcmpl): | |
| 1565 CASE(_fcmpg): | |
| 1566 { | |
| 1567 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
| 1568 STACK_FLOAT(-1), | |
| 1569 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
| 1570 -2); | |
| 1571 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1572 } | |
| 1573 | |
| 1574 CASE(_dcmpl): | |
| 1575 CASE(_dcmpg): | |
| 1576 { | |
| 1577 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
| 1578 STACK_DOUBLE(-1), | |
| 1579 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
| 1580 MORE_STACK(-4); // Pop | |
| 1581 SET_STACK_INT(r, 0); | |
| 1582 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1583 } | |
| 1584 | |
| 1585 CASE(_lcmp): | |
| 1586 { | |
| 1587 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
| 1588 MORE_STACK(-4); | |
| 1589 SET_STACK_INT(r, 0); | |
| 1590 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
| 1591 } | |
| 1592 | |
| 1593 | |
| 1594 /* Return from a method */ | |
| 1595 | |
| 1596 CASE(_areturn): | |
| 1597 CASE(_ireturn): | |
| 1598 CASE(_freturn): | |
| 1599 { | |
| 1600 // Allow a safepoint before returning to frame manager. | |
| 1601 SAFEPOINT; | |
| 1602 | |
| 1603 goto handle_return; | |
| 1604 } | |
| 1605 | |
| 1606 CASE(_lreturn): | |
| 1607 CASE(_dreturn): | |
| 1608 { | |
| 1609 // Allow a safepoint before returning to frame manager. | |
| 1610 SAFEPOINT; | |
| 1611 goto handle_return; | |
| 1612 } | |
| 1613 | |
| 1614 CASE(_return_register_finalizer): { | |
| 1615 | |
| 1616 oop rcvr = LOCALS_OBJECT(0); | |
|
1681
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1617 VERIFY_OOP(rcvr); |
|
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1618 if (rcvr->klass()->has_finalizer()) { |
| 0 | 1619 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
| 1620 } | |
| 1621 goto handle_return; | |
| 1622 } | |
| 1623 CASE(_return): { | |
| 1624 | |
| 1625 // Allow a safepoint before returning to frame manager. | |
| 1626 SAFEPOINT; | |
| 1627 goto handle_return; | |
| 1628 } | |
| 1629 | |
| 1630 /* Array access byte-codes */ | |
| 1631 | |
| 1632 /* Every array access byte-code starts out like this */ | |
| 1633 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
| 1634 #define ARRAY_INTRO(arrayOff) \ | |
| 1635 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
| 1636 jint index = STACK_INT(arrayOff + 1); \ | |
| 1637 char message[jintAsStringSize]; \ | |
| 1638 CHECK_NULL(arrObj); \ | |
| 1639 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
| 1640 sprintf(message, "%d", index); \ | |
| 1641 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
| 1642 message); \ | |
| 1643 } | |
| 1644 | |
| 1645 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
| 1646 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
| 1647 { \ | |
| 1648 ARRAY_INTRO(-2); \ | |
|
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1649 (void)extra; \ |
| 0 | 1650 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
| 1651 -2); \ | |
| 1652 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
| 1653 } | |
| 1654 | |
| 1655 /* 64-bit loads */ | |
| 1656 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
| 1657 { \ | |
| 1658 ARRAY_INTRO(-2); \ | |
| 1659 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
|
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1660 (void)extra; \ |
|
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|
1661 UPDATE_PC_AND_CONTINUE(1); \ |
| 0 | 1662 } |
| 1663 | |
| 1664 CASE(_iaload): | |
| 1665 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1666 CASE(_faload): | |
| 1667 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
|
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1668 CASE(_aaload): { |
|
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|
1669 ARRAY_INTRO(-2); |
|
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1670 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
|
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1671 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
|
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|
1672 } |
| 0 | 1673 CASE(_baload): |
| 1674 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1675 CASE(_caload): | |
| 1676 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1677 CASE(_saload): | |
| 1678 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1679 CASE(_laload): | |
| 1680 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
| 1681 CASE(_daload): | |
| 1682 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1683 | |
| 1684 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
| 1685 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
| 1686 { \ | |
| 1687 ARRAY_INTRO(-3); \ | |
|
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1688 (void)extra; \ |
| 0 | 1689 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1690 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
| 1691 } | |
| 1692 | |
| 1693 /* 64-bit stores */ | |
| 1694 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
| 1695 { \ | |
| 1696 ARRAY_INTRO(-4); \ | |
|
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1697 (void)extra; \ |
| 0 | 1698 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
| 1699 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
| 1700 } | |
| 1701 | |
| 1702 CASE(_iastore): | |
| 1703 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
| 1704 CASE(_fastore): | |
| 1705 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
| 1706 /* | |
| 1707 * This one looks different because of the assignability check | |
| 1708 */ | |
| 1709 CASE(_aastore): { | |
| 1710 oop rhsObject = STACK_OBJECT(-1); | |
|
1681
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1711 VERIFY_OOP(rhsObject); |
| 0 | 1712 ARRAY_INTRO( -3); |
| 1713 // arrObj, index are set | |
| 1714 if (rhsObject != NULL) { | |
| 1715 /* Check assignability of rhsObject into arrObj */ | |
|
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1716 Klass* rhsKlassOop = rhsObject->klass(); // EBX (subclass) |
|
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1717 Klass* elemKlassOop = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
| 0 | 1718 // |
| 1719 // Check for compatibilty. This check must not GC!! | |
| 1720 // Seems way more expensive now that we must dispatch | |
| 1721 // | |
|
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1722 if (rhsKlassOop != elemKlassOop && !rhsKlassOop->is_subtype_of(elemKlassOop)) { // ebx->is... |
| 0 | 1723 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), ""); |
| 1724 } | |
| 1725 } | |
|
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1726 ((objArrayOopDesc *) arrObj)->obj_at_put(index, rhsObject); |
| 0 | 1727 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
| 1728 } | |
| 1729 CASE(_bastore): | |
| 1730 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
| 1731 CASE(_castore): | |
| 1732 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
| 1733 CASE(_sastore): | |
| 1734 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
| 1735 CASE(_lastore): | |
| 1736 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
| 1737 CASE(_dastore): | |
| 1738 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
| 1739 | |
| 1740 CASE(_arraylength): | |
| 1741 { | |
| 1742 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
| 1743 CHECK_NULL(ary); | |
| 1744 SET_STACK_INT(ary->length(), -1); | |
| 1745 UPDATE_PC_AND_CONTINUE(1); | |
| 1746 } | |
| 1747 | |
| 1748 /* monitorenter and monitorexit for locking/unlocking an object */ | |
| 1749 | |
| 1750 CASE(_monitorenter): { | |
| 1751 oop lockee = STACK_OBJECT(-1); | |
| 1752 // derefing's lockee ought to provoke implicit null check | |
| 1753 CHECK_NULL(lockee); | |
| 1754 // find a free monitor or one already allocated for this object | |
| 1755 // if we find a matching object then we need a new monitor | |
| 1756 // since this is recursive enter | |
| 1757 BasicObjectLock* limit = istate->monitor_base(); | |
| 1758 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1759 BasicObjectLock* entry = NULL; | |
| 1760 while (most_recent != limit ) { | |
| 1761 if (most_recent->obj() == NULL) entry = most_recent; | |
| 1762 else if (most_recent->obj() == lockee) break; | |
| 1763 most_recent++; | |
| 1764 } | |
| 1765 if (entry != NULL) { | |
| 1766 entry->set_obj(lockee); | |
|
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1767 int success = false; |
|
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1768 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
|
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1769 |
|
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1770 markOop mark = lockee->mark(); |
|
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1771 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
|
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|
1772 // implies UseBiasedLocking |
|
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|
1773 if (mark->has_bias_pattern()) { |
|
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|
1774 uintptr_t thread_ident; |
|
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|
1775 uintptr_t anticipated_bias_locking_value; |
|
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1776 thread_ident = (uintptr_t)istate->thread(); |
|
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|
1777 anticipated_bias_locking_value = |
|
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1778 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
|
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|
1779 ~((uintptr_t) markOopDesc::age_mask_in_place); |
|
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|
1780 |
|
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|
1781 if (anticipated_bias_locking_value == 0) { |
|
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|
1782 // already biased towards this thread, nothing to do |
|
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|
1783 if (PrintBiasedLockingStatistics) { |
|
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|
1784 (* BiasedLocking::biased_lock_entry_count_addr())++; |
|
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|
1785 } |
|
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|
1786 success = true; |
|
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|
1787 } |
|
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|
1788 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
|
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|
1789 // try revoke bias |
|
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1790 markOop header = lockee->klass()->prototype_header(); |
|
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1791 if (hash != markOopDesc::no_hash) { |
|
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1792 header = header->copy_set_hash(hash); |
|
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|
1793 } |
|
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1794 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
|
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|
1795 if (PrintBiasedLockingStatistics) |
|
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1796 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
|
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|
1797 } |
|
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|
1798 } |
|
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|
1799 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
|
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|
1800 // try rebias |
|
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1801 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
|
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1802 if (hash != markOopDesc::no_hash) { |
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1803 new_header = new_header->copy_set_hash(hash); |
|
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1804 } |
|
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1805 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
|
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|
1806 if (PrintBiasedLockingStatistics) |
|
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1807 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
|
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1808 } |
|
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|
1809 else { |
|
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|
1810 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
|
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|
1811 } |
|
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1812 success = true; |
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1813 } |
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1814 else { |
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1815 // try to bias towards thread in case object is anonymously biased |
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1816 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1817 (uintptr_t)markOopDesc::age_mask_in_place | |
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1818 epoch_mask_in_place)); |
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1819 if (hash != markOopDesc::no_hash) { |
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1820 header = header->copy_set_hash(hash); |
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1821 } |
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1822 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1823 // debugging hint |
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1824 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1825 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1826 if (PrintBiasedLockingStatistics) |
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1827 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1828 } |
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1829 else { |
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1830 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1831 } |
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1832 success = true; |
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1833 } |
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1834 } |
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1835 |
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1836 // traditional lightweight locking |
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1837 if (!success) { |
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1838 markOop displaced = lockee->mark()->set_unlocked(); |
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1839 entry->lock()->set_displaced_header(displaced); |
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1840 bool call_vm = UseHeavyMonitors; |
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1841 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1842 // Is it simple recursive case? |
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1843 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1844 entry->lock()->set_displaced_header(NULL); |
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1845 } else { |
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1846 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1847 } |
| 0 | 1848 } |
| 1849 } | |
| 1850 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1851 } else { | |
| 1852 istate->set_msg(more_monitors); | |
| 1853 UPDATE_PC_AND_RETURN(0); // Re-execute | |
| 1854 } | |
| 1855 } | |
| 1856 | |
| 1857 CASE(_monitorexit): { | |
| 1858 oop lockee = STACK_OBJECT(-1); | |
| 1859 CHECK_NULL(lockee); | |
| 1860 // derefing's lockee ought to provoke implicit null check | |
| 1861 // find our monitor slot | |
| 1862 BasicObjectLock* limit = istate->monitor_base(); | |
| 1863 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
| 1864 while (most_recent != limit ) { | |
| 1865 if ((most_recent)->obj() == lockee) { | |
| 1866 BasicLock* lock = most_recent->lock(); | |
| 1867 markOop header = lock->displaced_header(); | |
| 1868 most_recent->set_obj(NULL); | |
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1869 if (!lockee->mark()->has_bias_pattern()) { |
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1870 bool call_vm = UseHeavyMonitors; |
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1871 // If it isn't recursive we either must swap old header or call the runtime |
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1872 if (header != NULL || call_vm) { |
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1873 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1874 // restore object for the slow case |
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1875 most_recent->set_obj(lockee); |
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1876 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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1877 } |
| 0 | 1878 } |
| 1879 } | |
| 1880 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
| 1881 } | |
| 1882 most_recent++; | |
| 1883 } | |
| 1884 // Need to throw illegal monitor state exception | |
| 1885 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
| 2480 | 1886 ShouldNotReachHere(); |
| 0 | 1887 } |
| 1888 | |
| 1889 /* All of the non-quick opcodes. */ | |
| 1890 | |
| 1891 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
| 1892 * constant pool index in the instruction. | |
| 1893 */ | |
| 1894 CASE(_getfield): | |
| 1895 CASE(_getstatic): | |
| 1896 { | |
| 1897 u2 index; | |
| 1898 ConstantPoolCacheEntry* cache; | |
| 1899 index = Bytes::get_native_u2(pc+1); | |
| 1900 | |
| 1901 // QQQ Need to make this as inlined as possible. Probably need to | |
| 1902 // split all the bytecode cases out so c++ compiler has a chance | |
| 1903 // for constant prop to fold everything possible away. | |
| 1904 | |
| 1905 cache = cp->entry_at(index); | |
| 1906 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 1907 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 1908 handle_exception); | |
| 1909 cache = cp->entry_at(index); | |
| 1910 } | |
| 1911 | |
| 1912 #ifdef VM_JVMTI | |
| 1913 if (_jvmti_interp_events) { | |
| 1914 int *count_addr; | |
| 1915 oop obj; | |
| 1916 // Check to see if a field modification watch has been set | |
| 1917 // before we take the time to call into the VM. | |
| 1918 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
| 1919 if ( *count_addr > 0 ) { | |
| 1920 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 1921 obj = (oop)NULL; | |
| 1922 } else { | |
| 1923 obj = (oop) STACK_OBJECT(-1); | |
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1924 VERIFY_OOP(obj); |
| 0 | 1925 } |
| 1926 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
| 1927 obj, | |
| 1928 cache), | |
| 1929 handle_exception); | |
| 1930 } | |
| 1931 } | |
| 1932 #endif /* VM_JVMTI */ | |
| 1933 | |
| 1934 oop obj; | |
| 1935 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
| 6926 | 1936 Klass* k = cache->f1_as_klass(); |
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1937 obj = k->java_mirror(); |
| 0 | 1938 MORE_STACK(1); // Assume single slot push |
| 1939 } else { | |
| 1940 obj = (oop) STACK_OBJECT(-1); | |
| 1941 CHECK_NULL(obj); | |
| 1942 } | |
| 1943 | |
| 1944 // | |
| 1945 // Now store the result on the stack | |
| 1946 // | |
| 1947 TosState tos_type = cache->flag_state(); | |
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1948 int field_offset = cache->f2_as_index(); |
| 0 | 1949 if (cache->is_volatile()) { |
| 1950 if (tos_type == atos) { | |
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1951 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
| 0 | 1952 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
| 1953 } else if (tos_type == itos) { | |
| 1954 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
| 1955 } else if (tos_type == ltos) { | |
| 1956 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
| 1957 MORE_STACK(1); | |
| 1958 } else if (tos_type == btos) { | |
| 1959 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
| 1960 } else if (tos_type == ctos) { | |
| 1961 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
| 1962 } else if (tos_type == stos) { | |
| 1963 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
| 1964 } else if (tos_type == ftos) { | |
| 1965 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
| 1966 } else { | |
| 1967 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
| 1968 MORE_STACK(1); | |
| 1969 } | |
| 1970 } else { | |
| 1971 if (tos_type == atos) { | |
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1972 VERIFY_OOP(obj->obj_field(field_offset)); |
| 0 | 1973 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
| 1974 } else if (tos_type == itos) { | |
| 1975 SET_STACK_INT(obj->int_field(field_offset), -1); | |
| 1976 } else if (tos_type == ltos) { | |
| 1977 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
| 1978 MORE_STACK(1); | |
| 1979 } else if (tos_type == btos) { | |
| 1980 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
| 1981 } else if (tos_type == ctos) { | |
| 1982 SET_STACK_INT(obj->char_field(field_offset), -1); | |
| 1983 } else if (tos_type == stos) { | |
| 1984 SET_STACK_INT(obj->short_field(field_offset), -1); | |
| 1985 } else if (tos_type == ftos) { | |
| 1986 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
| 1987 } else { | |
| 1988 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
| 1989 MORE_STACK(1); | |
| 1990 } | |
| 1991 } | |
| 1992 | |
| 1993 UPDATE_PC_AND_CONTINUE(3); | |
| 1994 } | |
| 1995 | |
| 1996 CASE(_putfield): | |
| 1997 CASE(_putstatic): | |
| 1998 { | |
| 1999 u2 index = Bytes::get_native_u2(pc+1); | |
| 2000 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2001 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2002 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
| 2003 handle_exception); | |
| 2004 cache = cp->entry_at(index); | |
| 2005 } | |
| 2006 | |
| 2007 #ifdef VM_JVMTI | |
| 2008 if (_jvmti_interp_events) { | |
| 2009 int *count_addr; | |
| 2010 oop obj; | |
| 2011 // Check to see if a field modification watch has been set | |
| 2012 // before we take the time to call into the VM. | |
| 2013 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
| 2014 if ( *count_addr > 0 ) { | |
| 2015 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 2016 obj = (oop)NULL; | |
| 2017 } | |
| 2018 else { | |
| 2019 if (cache->is_long() || cache->is_double()) { | |
| 2020 obj = (oop) STACK_OBJECT(-3); | |
| 2021 } else { | |
| 2022 obj = (oop) STACK_OBJECT(-2); | |
| 2023 } | |
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2024 VERIFY_OOP(obj); |
| 0 | 2025 } |
| 2026 | |
| 2027 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
| 2028 obj, | |
| 2029 cache, | |
| 2030 (jvalue *)STACK_SLOT(-1)), | |
| 2031 handle_exception); | |
| 2032 } | |
| 2033 } | |
| 2034 #endif /* VM_JVMTI */ | |
| 2035 | |
| 2036 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2037 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2038 | |
| 2039 oop obj; | |
| 2040 int count; | |
| 2041 TosState tos_type = cache->flag_state(); | |
| 2042 | |
| 2043 count = -1; | |
| 2044 if (tos_type == ltos || tos_type == dtos) { | |
| 2045 --count; | |
| 2046 } | |
| 2047 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
| 6926 | 2048 Klass* k = cache->f1_as_klass(); |
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2049 obj = k->java_mirror(); |
| 0 | 2050 } else { |
| 2051 --count; | |
| 2052 obj = (oop) STACK_OBJECT(count); | |
| 2053 CHECK_NULL(obj); | |
| 2054 } | |
| 2055 | |
| 2056 // | |
| 2057 // Now store the result | |
| 2058 // | |
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2059 int field_offset = cache->f2_as_index(); |
| 0 | 2060 if (cache->is_volatile()) { |
| 2061 if (tos_type == itos) { | |
| 2062 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
| 2063 } else if (tos_type == atos) { | |
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2064 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2065 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2066 } else if (tos_type == btos) { | |
| 2067 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
| 2068 } else if (tos_type == ltos) { | |
| 2069 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
| 2070 } else if (tos_type == ctos) { | |
| 2071 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
| 2072 } else if (tos_type == stos) { | |
| 2073 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
| 2074 } else if (tos_type == ftos) { | |
| 2075 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2076 } else { | |
| 2077 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2078 } | |
| 2079 OrderAccess::storeload(); | |
| 2080 } else { | |
| 2081 if (tos_type == itos) { | |
| 2082 obj->int_field_put(field_offset, STACK_INT(-1)); | |
| 2083 } else if (tos_type == atos) { | |
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2084 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2085 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
| 2086 } else if (tos_type == btos) { | |
| 2087 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
| 2088 } else if (tos_type == ltos) { | |
| 2089 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
| 2090 } else if (tos_type == ctos) { | |
| 2091 obj->char_field_put(field_offset, STACK_INT(-1)); | |
| 2092 } else if (tos_type == stos) { | |
| 2093 obj->short_field_put(field_offset, STACK_INT(-1)); | |
| 2094 } else if (tos_type == ftos) { | |
| 2095 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
| 2096 } else { | |
| 2097 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
| 2098 } | |
| 2099 } | |
| 2100 | |
| 2101 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
| 2102 } | |
| 2103 | |
| 2104 CASE(_new): { | |
| 2105 u2 index = Bytes::get_Java_u2(pc+1); | |
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2106 ConstantPool* constants = istate->method()->constants(); |
| 0 | 2107 if (!constants->tag_at(index).is_unresolved_klass()) { |
| 2108 // Make sure klass is initialized and doesn't have a finalizer | |
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2109 Klass* entry = constants->slot_at(index).get_klass(); |
| 0 | 2110 assert(entry->is_klass(), "Should be resolved klass"); |
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2111 Klass* k_entry = (Klass*) entry; |
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2112 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
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2113 InstanceKlass* ik = (InstanceKlass*) k_entry; |
| 0 | 2114 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
| 2115 size_t obj_size = ik->size_helper(); | |
| 2116 oop result = NULL; | |
| 2117 // If the TLAB isn't pre-zeroed then we'll have to do it | |
| 2118 bool need_zero = !ZeroTLAB; | |
| 2119 if (UseTLAB) { | |
| 2120 result = (oop) THREAD->tlab().allocate(obj_size); | |
| 2121 } | |
| 2122 if (result == NULL) { | |
| 2123 need_zero = true; | |
| 2124 // Try allocate in shared eden | |
| 2125 retry: | |
| 2126 HeapWord* compare_to = *Universe::heap()->top_addr(); | |
| 2127 HeapWord* new_top = compare_to + obj_size; | |
| 2128 if (new_top <= *Universe::heap()->end_addr()) { | |
| 2129 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
| 2130 goto retry; | |
| 2131 } | |
| 2132 result = (oop) compare_to; | |
| 2133 } | |
| 2134 } | |
| 2135 if (result != NULL) { | |
| 2136 // Initialize object (if nonzero size and need) and then the header | |
| 2137 if (need_zero ) { | |
| 2138 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
| 2139 obj_size -= sizeof(oopDesc) / oopSize; | |
| 2140 if (obj_size > 0 ) { | |
| 2141 memset(to_zero, 0, obj_size * HeapWordSize); | |
| 2142 } | |
| 2143 } | |
| 2144 if (UseBiasedLocking) { | |
| 2145 result->set_mark(ik->prototype_header()); | |
| 2146 } else { | |
| 2147 result->set_mark(markOopDesc::prototype()); | |
| 2148 } | |
|
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2149 result->set_klass_gap(0); |
| 0 | 2150 result->set_klass(k_entry); |
| 2151 SET_STACK_OBJECT(result, 0); | |
| 2152 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2153 } | |
| 2154 } | |
| 2155 } | |
| 2156 // Slow case allocation | |
| 2157 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
| 2158 handle_exception); | |
| 2159 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
| 2160 THREAD->set_vm_result(NULL); | |
| 2161 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
| 2162 } | |
| 2163 CASE(_anewarray): { | |
| 2164 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2165 jint size = STACK_INT(-1); | |
| 2166 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
| 2167 handle_exception); | |
| 2168 SET_STACK_OBJECT(THREAD->vm_result(), -1); | |
| 2169 THREAD->set_vm_result(NULL); | |
| 2170 UPDATE_PC_AND_CONTINUE(3); | |
| 2171 } | |
| 2172 CASE(_multianewarray): { | |
| 2173 jint dims = *(pc+3); | |
| 2174 jint size = STACK_INT(-1); | |
| 2175 // stack grows down, dimensions are up! | |
| 2176 jint *dimarray = | |
| 1509 | 2177 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
| 2178 Interpreter::stackElementWords-1]; | |
| 0 | 2179 //adjust pointer to start of stack element |
| 2180 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
| 2181 handle_exception); | |
| 2182 SET_STACK_OBJECT(THREAD->vm_result(), -dims); | |
| 2183 THREAD->set_vm_result(NULL); | |
| 2184 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
| 2185 } | |
| 2186 CASE(_checkcast): | |
| 2187 if (STACK_OBJECT(-1) != NULL) { | |
|
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2188 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2189 u2 index = Bytes::get_Java_u2(pc+1); |
| 2190 if (ProfileInterpreter) { | |
| 2191 // needs Profile_checkcast QQQ | |
| 2192 ShouldNotReachHere(); | |
| 2193 } | |
| 2194 // Constant pool may have actual klass or unresolved klass. If it is | |
| 2195 // unresolved we must resolve it | |
| 2196 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { | |
| 2197 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2198 } | |
|
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2199 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2200 Klass* objKlassOop = STACK_OBJECT(-1)->klass(); //ebx |
| 0 | 2201 // |
| 2202 // Check for compatibilty. This check must not GC!! | |
| 2203 // Seems way more expensive now that we must dispatch | |
| 2204 // | |
| 2205 if (objKlassOop != klassOf && | |
|
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2206 !objKlassOop->is_subtype_of(klassOf)) { |
| 0 | 2207 ResourceMark rm(THREAD); |
| 6983 | 2208 const char* objName = objKlassOop->external_name(); |
| 2209 const char* klassName = klassOf->external_name(); | |
| 0 | 2210 char* message = SharedRuntime::generate_class_cast_message( |
| 2211 objName, klassName); | |
| 2212 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message); | |
| 2213 } | |
| 2214 } else { | |
| 2215 if (UncommonNullCast) { | |
| 2216 // istate->method()->set_null_cast_seen(); | |
| 2217 // [RGV] Not sure what to do here! | |
| 2218 | |
| 2219 } | |
| 2220 } | |
| 2221 UPDATE_PC_AND_CONTINUE(3); | |
| 2222 | |
| 2223 CASE(_instanceof): | |
| 2224 if (STACK_OBJECT(-1) == NULL) { | |
| 2225 SET_STACK_INT(0, -1); | |
| 2226 } else { | |
|
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2227 VERIFY_OOP(STACK_OBJECT(-1)); |
| 0 | 2228 u2 index = Bytes::get_Java_u2(pc+1); |
| 2229 // Constant pool may have actual klass or unresolved klass. If it is | |
| 2230 // unresolved we must resolve it | |
| 2231 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { | |
| 2232 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
| 2233 } | |
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2234 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2235 Klass* objKlassOop = STACK_OBJECT(-1)->klass(); |
| 0 | 2236 // |
| 2237 // Check for compatibilty. This check must not GC!! | |
| 2238 // Seems way more expensive now that we must dispatch | |
| 2239 // | |
|
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2240 if ( objKlassOop == klassOf || objKlassOop->is_subtype_of(klassOf)) { |
| 0 | 2241 SET_STACK_INT(1, -1); |
| 2242 } else { | |
| 2243 SET_STACK_INT(0, -1); | |
| 2244 } | |
| 2245 } | |
| 2246 UPDATE_PC_AND_CONTINUE(3); | |
| 2247 | |
| 2248 CASE(_ldc_w): | |
| 2249 CASE(_ldc): | |
| 2250 { | |
| 2251 u2 index; | |
| 2252 bool wide = false; | |
| 2253 int incr = 2; // frequent case | |
| 2254 if (opcode == Bytecodes::_ldc) { | |
| 2255 index = pc[1]; | |
| 2256 } else { | |
| 2257 index = Bytes::get_Java_u2(pc+1); | |
| 2258 incr = 3; | |
| 2259 wide = true; | |
| 2260 } | |
| 2261 | |
|
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2262 ConstantPool* constants = METHOD->constants(); |
| 0 | 2263 switch (constants->tag_at(index).value()) { |
| 2264 case JVM_CONSTANT_Integer: | |
| 2265 SET_STACK_INT(constants->int_at(index), 0); | |
| 2266 break; | |
| 2267 | |
| 2268 case JVM_CONSTANT_Float: | |
| 2269 SET_STACK_FLOAT(constants->float_at(index), 0); | |
| 2270 break; | |
| 2271 | |
| 2272 case JVM_CONSTANT_String: | |
|
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2273 { |
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2274 oop result = constants->resolved_references()->obj_at(index); |
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2275 if (result == NULL) { |
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2276 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
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2277 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
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2278 THREAD->set_vm_result(NULL); |
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2279 } else { |
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2280 VERIFY_OOP(result); |
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2281 SET_STACK_OBJECT(result, 0); |
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2282 } |
| 0 | 2283 break; |
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2284 } |
| 0 | 2285 |
| 2286 case JVM_CONSTANT_Class: | |
|
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2287 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
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2288 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
| 0 | 2289 break; |
| 2290 | |
| 2291 case JVM_CONSTANT_UnresolvedClass: | |
| 2292 case JVM_CONSTANT_UnresolvedClassInError: | |
| 2293 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
| 2294 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
| 2295 THREAD->set_vm_result(NULL); | |
| 2296 break; | |
| 2297 | |
| 2298 default: ShouldNotReachHere(); | |
| 2299 } | |
| 2300 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
| 2301 } | |
| 2302 | |
| 2303 CASE(_ldc2_w): | |
| 2304 { | |
| 2305 u2 index = Bytes::get_Java_u2(pc+1); | |
| 2306 | |
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2307 ConstantPool* constants = METHOD->constants(); |
| 0 | 2308 switch (constants->tag_at(index).value()) { |
| 2309 | |
| 2310 case JVM_CONSTANT_Long: | |
| 2311 SET_STACK_LONG(constants->long_at(index), 1); | |
| 2312 break; | |
| 2313 | |
| 2314 case JVM_CONSTANT_Double: | |
| 2315 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
| 2316 break; | |
| 2317 default: ShouldNotReachHere(); | |
| 2318 } | |
| 2319 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
| 2320 } | |
| 2321 | |
| 2480 | 2322 CASE(_fast_aldc_w): |
| 2323 CASE(_fast_aldc): { | |
| 2324 u2 index; | |
| 2325 int incr; | |
| 2326 if (opcode == Bytecodes::_fast_aldc) { | |
| 2327 index = pc[1]; | |
| 2328 incr = 2; | |
| 2329 } else { | |
| 2330 index = Bytes::get_native_u2(pc+1); | |
| 2331 incr = 3; | |
| 2332 } | |
| 2333 | |
| 2334 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
| 2335 // This kind of CP cache entry does not need to match the flags byte, because | |
| 2336 // there is a 1-1 relation between bytecode type and CP entry type. | |
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2337 ConstantPool* constants = METHOD->constants(); |
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2338 oop result = constants->resolved_references()->obj_at(index); |
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2339 if (result == NULL) { |
| 2480 | 2340 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
| 2341 handle_exception); | |
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2342 result = THREAD->vm_result(); |
| 2480 | 2343 } |
| 2344 | |
|
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2345 VERIFY_OOP(result); |
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2346 SET_STACK_OBJECT(result, 0); |
| 2480 | 2347 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
| 2348 } | |
| 2349 | |
| 2350 CASE(_invokedynamic): { | |
| 6926 | 2351 |
| 2480 | 2352 if (!EnableInvokeDynamic) { |
| 2353 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
| 2354 // The verifier will stop it. However, if we get past the verifier, | |
| 2355 // this will stop the thread in a reasonable way, without crashing the JVM. | |
| 2356 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
| 2357 handle_exception); | |
| 2358 ShouldNotReachHere(); | |
| 2359 } | |
| 2360 | |
| 6926 | 2361 u4 index = Bytes::get_native_u4(pc+1); |
| 2362 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
| 2480 | 2363 |
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2364 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
| 2480 | 2365 // This kind of CP cache entry does not need to match the flags byte, because |
| 2366 // there is a 1-1 relation between bytecode type and CP entry type. | |
| 6926 | 2367 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
| 2480 | 2368 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
| 2369 handle_exception); | |
| 6926 | 2370 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
| 2371 } | |
| 2372 | |
| 2373 Method* method = cache->f1_as_method(); | |
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2374 if (VerifyOops) method->verify(); |
| 6926 | 2375 |
| 2376 if (cache->has_appendix()) { | |
| 2377 ConstantPool* constants = METHOD->constants(); | |
| 2378 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2379 MORE_STACK(1); | |
| 2380 } | |
| 2381 | |
| 2382 istate->set_msg(call_method); | |
| 2383 istate->set_callee(method); | |
| 2384 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2385 istate->set_bcp_advance(5); | |
| 2386 | |
| 2387 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2388 } | |
| 2389 | |
| 2390 CASE(_invokehandle): { | |
| 2391 | |
| 2392 if (!EnableInvokeDynamic) { | |
| 2393 ShouldNotReachHere(); | |
| 2480 | 2394 } |
| 2395 | |
| 6926 | 2396 u2 index = Bytes::get_native_u2(pc+1); |
| 2397 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2398 | |
| 2399 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
| 2400 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
| 2401 handle_exception); | |
| 2402 cache = cp->entry_at(index); | |
| 2403 } | |
| 2404 | |
| 2405 Method* method = cache->f1_as_method(); | |
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2406 if (VerifyOops) method->verify(); |
| 6926 | 2407 |
| 2408 if (cache->has_appendix()) { | |
| 2409 ConstantPool* constants = METHOD->constants(); | |
| 2410 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
| 2411 MORE_STACK(1); | |
| 2412 } | |
| 2413 | |
| 2414 istate->set_msg(call_method); | |
| 2415 istate->set_callee(method); | |
| 2416 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
| 2417 istate->set_bcp_advance(3); | |
| 2480 | 2418 |
| 2419 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2420 } | |
| 2421 | |
| 0 | 2422 CASE(_invokeinterface): { |
| 2423 u2 index = Bytes::get_native_u2(pc+1); | |
| 2424 | |
| 2425 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2426 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2427 | |
| 2428 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2429 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2430 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2431 handle_exception); | |
| 2432 cache = cp->entry_at(index); | |
| 2433 } | |
| 2434 | |
| 2435 istate->set_msg(call_method); | |
| 2436 | |
| 2437 // Special case of invokeinterface called for virtual method of | |
| 2438 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 2439 // This code isn't produced by javac, but could be produced by | |
| 2440 // another compliant java compiler. | |
|
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2441 if (cache->is_forced_virtual()) { |
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2442 Method* callee; |
| 0 | 2443 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
| 2444 if (cache->is_vfinal()) { | |
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2445 callee = cache->f2_as_vfinal_method(); |
| 0 | 2446 } else { |
| 2447 // get receiver | |
| 2448 int parms = cache->parameter_size(); | |
| 2449 // Same comments as invokevirtual apply here | |
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2450 VERIFY_OOP(STACK_OBJECT(-parms)); |
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2451 InstanceKlass* rcvrKlass = (InstanceKlass*) |
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2452 STACK_OBJECT(-parms)->klass(); |
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2453 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
| 0 | 2454 } |
| 2455 istate->set_callee(callee); | |
| 2456 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2457 #ifdef VM_JVMTI | |
| 2458 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2459 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2460 } | |
| 2461 #endif /* VM_JVMTI */ | |
| 2462 istate->set_bcp_advance(5); | |
| 2463 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2464 } | |
| 2465 | |
| 2466 // this could definitely be cleaned up QQQ | |
|
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changeset
|
2467 Method* callee; |
|
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|
2468 Klass* iclass = cache->f1_as_klass(); |
|
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diff
changeset
|
2469 // InstanceKlass* interface = (InstanceKlass*) iclass; |
| 0 | 2470 // get receiver |
| 2471 int parms = cache->parameter_size(); | |
| 2472 oop rcvr = STACK_OBJECT(-parms); | |
| 2473 CHECK_NULL(rcvr); | |
|
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|
2474 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
| 0 | 2475 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
| 2476 int i; | |
| 2477 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
| 2478 if (ki->interface_klass() == iclass) break; | |
| 2479 } | |
| 2480 // If the interface isn't found, this class doesn't implement this | |
| 2481 // interface. The link resolver checks this but only for the first | |
| 2482 // time this interface is called. | |
| 2483 if (i == int2->itable_length()) { | |
| 2484 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), ""); | |
| 2485 } | |
|
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
2486 int mindex = cache->f2_as_index(); |
| 0 | 2487 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
| 2488 callee = im[mindex].method(); | |
| 2489 if (callee == NULL) { | |
| 2490 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), ""); | |
| 2491 } | |
| 2492 | |
| 2493 istate->set_callee(callee); | |
| 2494 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2495 #ifdef VM_JVMTI | |
| 2496 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2497 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2498 } | |
| 2499 #endif /* VM_JVMTI */ | |
| 2500 istate->set_bcp_advance(5); | |
| 2501 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2502 } | |
| 2503 | |
| 2504 CASE(_invokevirtual): | |
| 2505 CASE(_invokespecial): | |
| 2506 CASE(_invokestatic): { | |
| 2507 u2 index = Bytes::get_native_u2(pc+1); | |
| 2508 | |
| 2509 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
| 2510 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
| 2511 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
| 2512 | |
| 2513 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
| 2514 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
| 2515 handle_exception); | |
| 2516 cache = cp->entry_at(index); | |
| 2517 } | |
| 2518 | |
| 2519 istate->set_msg(call_method); | |
| 2520 { | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2521 Method* callee; |
| 0 | 2522 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
| 2523 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
2524 if (cache->is_vfinal()) callee = cache->f2_as_vfinal_method(); |
| 0 | 2525 else { |
| 2526 // get receiver | |
| 2527 int parms = cache->parameter_size(); | |
| 2528 // this works but needs a resourcemark and seems to create a vtable on every call: | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2529 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
| 0 | 2530 // |
| 2531 // this fails with an assert | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2532 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
| 0 | 2533 // but this works |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
2534 VERIFY_OOP(STACK_OBJECT(-parms)); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2535 InstanceKlass* rcvrKlass = (InstanceKlass*) STACK_OBJECT(-parms)->klass(); |
| 0 | 2536 /* |
| 2537 Executing this code in java.lang.String: | |
| 2538 public String(char value[]) { | |
| 2539 this.count = value.length; | |
| 2540 this.value = (char[])value.clone(); | |
| 2541 } | |
| 2542 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2543 a find on rcvr->klass() reports: |
| 0 | 2544 {type array char}{type array class} |
| 2545 - klass: {other class} | |
| 2546 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2547 but using InstanceKlass::cast(STACK_OBJECT(-parms)->klass()) causes in assertion failure |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2548 because rcvr->klass()->oop_is_instance() == 0 |
| 0 | 2549 However it seems to have a vtable in the right location. Huh? |
| 2550 | |
| 2551 */ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2552 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
| 0 | 2553 } |
| 2554 } else { | |
| 2555 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
| 2556 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
| 2557 } | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
2558 callee = cache->f1_as_method(); |
| 0 | 2559 } |
| 2560 | |
| 2561 istate->set_callee(callee); | |
| 2562 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
| 2563 #ifdef VM_JVMTI | |
| 2564 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
| 2565 istate->set_callee_entry_point(callee->interpreter_entry()); | |
| 2566 } | |
| 2567 #endif /* VM_JVMTI */ | |
| 2568 istate->set_bcp_advance(3); | |
| 2569 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
| 2570 } | |
| 2571 } | |
| 2572 | |
| 2573 /* Allocate memory for a new java object. */ | |
| 2574 | |
| 2575 CASE(_newarray): { | |
| 2576 BasicType atype = (BasicType) *(pc+1); | |
| 2577 jint size = STACK_INT(-1); | |
| 2578 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
| 2579 handle_exception); | |
| 2580 SET_STACK_OBJECT(THREAD->vm_result(), -1); | |
| 2581 THREAD->set_vm_result(NULL); | |
| 2582 | |
| 2583 UPDATE_PC_AND_CONTINUE(2); | |
| 2584 } | |
| 2585 | |
| 2586 /* Throw an exception. */ | |
| 2587 | |
| 2588 CASE(_athrow): { | |
| 2589 oop except_oop = STACK_OBJECT(-1); | |
| 2590 CHECK_NULL(except_oop); | |
| 2591 // set pending_exception so we use common code | |
| 2592 THREAD->set_pending_exception(except_oop, NULL, 0); | |
| 2593 goto handle_exception; | |
| 2594 } | |
| 2595 | |
| 2596 /* goto and jsr. They are exactly the same except jsr pushes | |
| 2597 * the address of the next instruction first. | |
| 2598 */ | |
| 2599 | |
| 2600 CASE(_jsr): { | |
| 2601 /* push bytecode index on stack */ | |
| 2602 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
| 2603 MORE_STACK(1); | |
| 2604 /* FALL THROUGH */ | |
| 2605 } | |
| 2606 | |
| 2607 CASE(_goto): | |
| 2608 { | |
| 2609 int16_t offset = (int16_t)Bytes::get_Java_u2(pc + 1); | |
| 2610 address branch_pc = pc; | |
| 2611 UPDATE_PC(offset); | |
| 2612 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2613 CONTINUE; | |
| 2614 } | |
| 2615 | |
| 2616 CASE(_jsr_w): { | |
| 2617 /* push return address on the stack */ | |
| 2618 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
| 2619 MORE_STACK(1); | |
| 2620 /* FALL THROUGH */ | |
| 2621 } | |
| 2622 | |
| 2623 CASE(_goto_w): | |
| 2624 { | |
| 2625 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
| 2626 address branch_pc = pc; | |
| 2627 UPDATE_PC(offset); | |
| 2628 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
| 2629 CONTINUE; | |
| 2630 } | |
| 2631 | |
| 2632 /* return from a jsr or jsr_w */ | |
| 2633 | |
| 2634 CASE(_ret): { | |
| 2635 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); | |
| 2636 UPDATE_PC_AND_CONTINUE(0); | |
| 2637 } | |
| 2638 | |
| 2639 /* debugger breakpoint */ | |
| 2640 | |
| 2641 CASE(_breakpoint): { | |
| 2642 Bytecodes::Code original_bytecode; | |
| 2643 DECACHE_STATE(); | |
| 2644 SET_LAST_JAVA_FRAME(); | |
| 2645 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
| 2646 METHOD, pc); | |
| 2647 RESET_LAST_JAVA_FRAME(); | |
| 2648 CACHE_STATE(); | |
| 2649 if (THREAD->has_pending_exception()) goto handle_exception; | |
| 2650 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
| 2651 handle_exception); | |
| 2652 | |
| 2653 opcode = (jubyte)original_bytecode; | |
| 2654 goto opcode_switch; | |
| 2655 } | |
| 2656 | |
| 2657 DEFAULT: | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2658 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2659 Bytecodes::name((Bytecodes::Code)opcode))); |
| 0 | 2660 goto finish; |
| 2661 | |
| 2662 } /* switch(opc) */ | |
| 2663 | |
| 2664 | |
| 2665 #ifdef USELABELS | |
| 2666 check_for_exception: | |
| 2667 #endif | |
| 2668 { | |
| 2669 if (!THREAD->has_pending_exception()) { | |
| 2670 CONTINUE; | |
| 2671 } | |
| 2672 /* We will be gcsafe soon, so flush our state. */ | |
| 2673 DECACHE_PC(); | |
| 2674 goto handle_exception; | |
| 2675 } | |
| 2676 do_continue: ; | |
| 2677 | |
| 2678 } /* while (1) interpreter loop */ | |
| 2679 | |
| 2680 | |
| 2681 // An exception exists in the thread state see whether this activation can handle it | |
| 2682 handle_exception: { | |
| 2683 | |
| 2684 HandleMarkCleaner __hmc(THREAD); | |
| 2685 Handle except_oop(THREAD, THREAD->pending_exception()); | |
| 2686 // Prevent any subsequent HandleMarkCleaner in the VM | |
| 2687 // from freeing the except_oop handle. | |
| 2688 HandleMark __hm(THREAD); | |
| 2689 | |
| 2690 THREAD->clear_pending_exception(); | |
| 2691 assert(except_oop(), "No exception to process"); | |
| 2692 intptr_t continuation_bci; | |
| 2693 // expression stack is emptied | |
| 1509 | 2694 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
| 0 | 2695 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
| 2696 handle_exception); | |
| 2697 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2698 except_oop = THREAD->vm_result(); |
| 0 | 2699 THREAD->set_vm_result(NULL); |
| 2700 if (continuation_bci >= 0) { | |
| 2701 // Place exception on top of stack | |
| 2702 SET_STACK_OBJECT(except_oop(), 0); | |
| 2703 MORE_STACK(1); | |
| 2704 pc = METHOD->code_base() + continuation_bci; | |
| 2705 if (TraceExceptions) { | |
| 2706 ttyLocker ttyl; | |
| 2707 ResourceMark rm; | |
| 2708 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), except_oop()); | |
| 2709 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); | |
| 2710 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
|
2711 istate->bcp() - (intptr_t)METHOD->code_base(), |
| 0 | 2712 continuation_bci, THREAD); |
| 2713 } | |
| 2714 // for AbortVMOnException flag | |
| 2715 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
| 2716 goto run; | |
| 2717 } | |
| 2718 if (TraceExceptions) { | |
| 2719 ttyLocker ttyl; | |
| 2720 ResourceMark rm; | |
| 2721 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), except_oop()); | |
| 2722 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); | |
| 2723 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
|
2724 istate->bcp() - (intptr_t)METHOD->code_base(), |
| 0 | 2725 THREAD); |
| 2726 } | |
| 2727 // for AbortVMOnException flag | |
| 2728 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
| 2729 // No handler in this activation, unwind and try again | |
| 2730 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
| 2731 goto handle_return; | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2732 } // handle_exception: |
| 0 | 2733 |
| 2734 // Return from an interpreter invocation with the result of the interpretation | |
| 2735 // on the top of the Java Stack (or a pending exception) | |
| 2736 | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2737 handle_Pop_Frame: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2738 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2739 // 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
|
2740 // 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
|
2741 // 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
|
2742 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2743 istate->set_msg(popping_frame); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2744 // 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
|
2745 // 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
|
2746 THREAD->clr_pop_frame_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2747 // 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
|
2748 THREAD->set_pop_frame_in_process(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2749 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2750 goto handle_return; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2751 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2752 } // handle_Pop_Frame |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2753 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2754 // 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
|
2755 // 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
|
2756 handle_Early_Return: { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2757 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2758 istate->set_msg(early_return); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2759 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2760 // Clear expression stack. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2761 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2762 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2763 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2764 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2765 // Push the value to be returned. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2766 switch (istate->method()->result_type()) { |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2767 case T_BOOLEAN: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2768 case T_SHORT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2769 case T_BYTE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2770 case T_CHAR: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
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14399
diff
changeset
|
2771 case T_INT: |
|
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2772 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
|
2773 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
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14399
diff
changeset
|
2774 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2775 case T_LONG: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2776 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
|
2777 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2778 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2779 case T_FLOAT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2780 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
|
2781 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2782 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2783 case T_DOUBLE: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2784 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
|
2785 MORE_STACK(2); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2786 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2787 case T_ARRAY: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2788 case T_OBJECT: |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2789 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
|
2790 MORE_STACK(1); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2791 break; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2792 } |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2793 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2794 ts->clr_earlyret_value(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2795 ts->set_earlyret_oop(NULL); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2796 ts->clr_earlyret_pending(); |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2797 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2798 // Fall through to handle_return. |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2799 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2800 } // handle_Early_Return |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2801 |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2802 handle_return: { |
| 0 | 2803 DECACHE_STATE(); |
| 2804 | |
|
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2805 bool suppress_error = istate->msg() == popping_frame || istate->msg() == early_return; |
|
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2806 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
| 0 | 2807 Handle original_exception(THREAD, THREAD->pending_exception()); |
| 2808 Handle illegal_state_oop(THREAD, NULL); | |
| 2809 | |
| 2810 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
| 2811 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
| 2812 // isn't really allocated yet and so doesn't become live until later and | |
| 2813 // in unpredicatable places. Instead we must protect the places where we enter the | |
| 2814 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
| 2815 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
| 2816 // unfortunately isn't possible. | |
| 2817 | |
| 2818 THREAD->clear_pending_exception(); | |
| 2819 | |
| 2820 // | |
| 2821 // As far as we are concerned we have returned. If we have a pending exception | |
| 2822 // that will be returned as this invocation's result. However if we get any | |
| 2823 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
| 2824 // will be our final result (i.e. monitor exception trumps a pending exception). | |
| 2825 // | |
| 2826 | |
| 2827 // If we never locked the method (or really passed the point where we would have), | |
| 2828 // there is no need to unlock it (or look for other monitors), since that | |
| 2829 // could not have happened. | |
| 2830 | |
| 2831 if (THREAD->do_not_unlock()) { | |
| 2832 | |
| 2833 // Never locked, reset the flag now because obviously any caller must | |
| 2834 // have passed their point of locking for us to have gotten here. | |
| 2835 | |
| 2836 THREAD->clr_do_not_unlock(); | |
| 2837 } else { | |
| 2838 // At this point we consider that we have returned. We now check that the | |
| 2839 // locks were properly block structured. If we find that they were not | |
| 2840 // used properly we will return with an illegal monitor exception. | |
| 2841 // The exception is checked by the caller not the callee since this | |
| 2842 // checking is considered to be part of the invocation and therefore | |
| 2843 // in the callers scope (JVM spec 8.13). | |
| 2844 // | |
| 2845 // Another weird thing to watch for is if the method was locked | |
| 2846 // recursively and then not exited properly. This means we must | |
| 2847 // examine all the entries in reverse time(and stack) order and | |
| 2848 // unlock as we find them. If we find the method monitor before | |
| 2849 // we are at the initial entry then we should throw an exception. | |
| 2850 // It is not clear the template based interpreter does this | |
| 2851 // correctly | |
| 2852 | |
| 2853 BasicObjectLock* base = istate->monitor_base(); | |
| 2854 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
| 2855 bool method_unlock_needed = METHOD->is_synchronized(); | |
| 2856 // We know the initial monitor was used for the method don't check that | |
| 2857 // slot in the loop | |
| 2858 if (method_unlock_needed) base--; | |
| 2859 | |
| 2860 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
| 2861 while (end < base) { | |
| 2862 oop lockee = end->obj(); | |
| 2863 if (lockee != NULL) { | |
| 2864 BasicLock* lock = end->lock(); | |
| 2865 markOop header = lock->displaced_header(); | |
| 2866 end->set_obj(NULL); | |
|
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2867 |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2868 if (!lockee->mark()->has_bias_pattern()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2869 // 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
goetz
parents:
10393
diff
changeset
|
2870 if (header != NULL) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2871 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2872 // restore object for the slow case |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2873 end->set_obj(lockee); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2874 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2875 // Prevent any HandleMarkCleaner from freeing our live handles |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2876 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2877 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2878 } |
| 0 | 2879 } |
| 2880 } | |
| 2881 } | |
| 2882 // One error is plenty | |
| 2883 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 2884 { | |
| 2885 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 2886 HandleMark __hm(THREAD); | |
| 2887 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 2888 } | |
| 2889 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 2890 illegal_state_oop = THREAD->pending_exception(); | |
| 2891 THREAD->clear_pending_exception(); | |
| 2892 } | |
| 2893 } | |
| 2894 end++; | |
| 2895 } | |
| 2896 // Unlock the method if needed | |
| 2897 if (method_unlock_needed) { | |
| 2898 if (base->obj() == NULL) { | |
| 2899 // The method is already unlocked this is not good. | |
| 2900 if (illegal_state_oop() == NULL && !suppress_error) { | |
| 2901 { | |
| 2902 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 2903 HandleMark __hm(THREAD); | |
| 2904 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
| 2905 } | |
| 2906 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
| 2907 illegal_state_oop = THREAD->pending_exception(); | |
| 2908 THREAD->clear_pending_exception(); | |
| 2909 } | |
| 2910 } else { | |
| 2911 // | |
| 2912 // The initial monitor is always used for the method | |
| 2913 // However if that slot is no longer the oop for the method it was unlocked | |
| 2914 // and reused by something that wasn't unlocked! | |
| 2915 // | |
| 2916 // deopt can come in with rcvr dead because c2 knows | |
| 2917 // its value is preserved in the monitor. So we can't use locals[0] at all | |
| 2918 // and must use first monitor slot. | |
| 2919 // | |
| 2920 oop rcvr = base->obj(); | |
| 2921 if (rcvr == NULL) { | |
| 2922 if (!suppress_error) { | |
| 2923 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), ""); | |
| 2924 illegal_state_oop = THREAD->pending_exception(); | |
| 2925 THREAD->clear_pending_exception(); | |
| 2926 } | |
|
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2927 } else if (UseHeavyMonitors) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2928 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2929 // Prevent any HandleMarkCleaner from freeing our live handles. |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2930 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2931 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2932 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2933 if (THREAD->has_pending_exception()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2934 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2935 THREAD->clear_pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2936 } |
| 0 | 2937 } else { |
| 2938 BasicLock* lock = base->lock(); | |
| 2939 markOop header = lock->displaced_header(); | |
| 2940 base->set_obj(NULL); | |
|
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2941 |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2942 if (!rcvr->mark()->has_bias_pattern()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2943 base->set_obj(NULL); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2944 // 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
goetz
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10393
diff
changeset
|
2945 if (header != NULL) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2946 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2947 // restore object for the slow case |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2948 base->set_obj(rcvr); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2949 { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
2950 // Prevent any HandleMarkCleaner from freeing our live handles |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
2951 HandleMark __hm(THREAD); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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10393
diff
changeset
|
2952 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
2953 } |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2954 if (THREAD->has_pending_exception()) { |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2955 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2956 THREAD->clear_pending_exception(); |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2957 } |
| 0 | 2958 } |
| 2959 } | |
| 2960 } | |
| 2961 } | |
| 2962 } | |
| 2963 } | |
| 2964 } | |
|
14395
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2965 // Clear the do_not_unlock flag now. |
|
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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10393
diff
changeset
|
2966 THREAD->clr_do_not_unlock(); |
| 0 | 2967 |
| 2968 // | |
| 2969 // Notify jvmti/jvmdi | |
| 2970 // | |
| 2971 // NOTE: we do not notify a method_exit if we have a pending exception, | |
| 2972 // including an exception we generate for unlocking checks. In the former | |
| 2973 // case, JVMDI has already been notified by our call for the exception handler | |
| 2974 // and in both cases as far as JVMDI is concerned we have already returned. | |
| 2975 // If we notify it again JVMDI will be all confused about how many frames | |
| 2976 // are still on the stack (4340444). | |
| 2977 // | |
| 2978 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
| 2979 // method_exit events whenever we leave an activation unless it was done | |
| 2980 // for popframe. This is nothing like jvmdi. However we are passing the | |
| 2981 // tests at the moment (apparently because they are jvmdi based) so rather | |
| 2982 // than change this code and possibly fail tests we will leave it alone | |
| 2983 // (with this note) in anticipation of changing the vm and the tests | |
| 2984 // simultaneously. | |
| 2985 | |
| 2986 | |
| 2987 // | |
| 2988 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
| 2989 | |
| 2990 | |
| 2991 | |
| 2992 #ifdef VM_JVMTI | |
| 2993 if (_jvmti_interp_events) { | |
| 2994 // Whenever JVMTI puts a thread in interp_only_mode, method | |
| 2995 // entry/exit events are sent for that thread to track stack depth. | |
| 2996 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
| 2997 { | |
| 2998 // Prevent any HandleMarkCleaner from freeing our live handles | |
| 2999 HandleMark __hm(THREAD); | |
| 3000 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
| 3001 } | |
| 3002 } | |
| 3003 } | |
| 3004 #endif /* VM_JVMTI */ | |
| 3005 | |
| 3006 // | |
| 3007 // See if we are returning any exception | |
| 3008 // A pending exception that was pending prior to a possible popping frame | |
| 3009 // overrides the popping frame. | |
| 3010 // | |
| 3011 assert(!suppress_error || suppress_error && illegal_state_oop() == NULL, "Error was not suppressed"); | |
| 3012 if (illegal_state_oop() != NULL || original_exception() != NULL) { | |
| 3013 // inform the frame manager we have no result | |
| 3014 istate->set_msg(throwing_exception); | |
| 3015 if (illegal_state_oop() != NULL) | |
| 3016 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
| 3017 else | |
| 3018 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
| 3019 UPDATE_PC_AND_RETURN(0); | |
| 3020 } | |
| 3021 | |
| 3022 if (istate->msg() == popping_frame) { | |
| 3023 // Make it simpler on the assembly code and set the message for the frame pop. | |
| 3024 // returns | |
| 3025 if (istate->prev() == NULL) { | |
| 3026 // We must be returning to a deoptimized frame (because popframe only happens between | |
| 3027 // two interpreted frames). We need to save the current arguments in C heap so that | |
| 3028 // the deoptimized frame when it restarts can copy the arguments to its expression | |
| 3029 // stack and re-execute the call. We also have to notify deoptimization that this | |
| 605 | 3030 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
| 0 | 3031 // java expression stack. Yuck. |
| 3032 // | |
| 3033 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
| 3034 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
| 3035 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
| 3036 } | |
|
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|
3037 } else { |
|
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|
3038 istate->set_msg(return_from_method); |
| 0 | 3039 } |
|
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|
3040 |
|
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|
3041 // Normal return |
|
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|
3042 // Advance the pc and return to frame manager |
|
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|
3043 UPDATE_PC_AND_RETURN(1); |
| 0 | 3044 } /* handle_return: */ |
| 3045 | |
| 3046 // This is really a fatal error return | |
| 3047 | |
| 3048 finish: | |
| 3049 DECACHE_TOS(); | |
| 3050 DECACHE_PC(); | |
| 3051 | |
| 3052 return; | |
| 3053 } | |
| 3054 | |
| 3055 /* | |
| 3056 * All the code following this point is only produced once and is not present | |
| 3057 * in the JVMTI version of the interpreter | |
| 3058 */ | |
| 3059 | |
| 3060 #ifndef VM_JVMTI | |
| 3061 | |
| 3062 // This constructor should only be used to contruct the object to signal | |
| 3063 // interpreter initialization. All other instances should be created by | |
| 3064 // the frame manager. | |
| 3065 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
| 3066 if (msg != initialize) ShouldNotReachHere(); | |
| 3067 _msg = msg; | |
| 3068 _self_link = this; | |
| 3069 _prev_link = NULL; | |
| 3070 } | |
| 3071 | |
| 3072 // Inline static functions for Java Stack and Local manipulation | |
| 3073 | |
| 3074 // The implementations are platform dependent. We have to worry about alignment | |
| 3075 // issues on some machines which can change on the same platform depending on | |
| 3076 // whether it is an LP64 machine also. | |
| 3077 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
| 3078 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
| 3079 } | |
| 3080 | |
| 3081 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
| 3082 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3083 } | |
| 3084 | |
| 3085 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
| 3086 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
| 3087 } | |
| 3088 | |
| 3089 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
| 3090 return (oop)tos [Interpreter::expr_index_at(-offset)]; | |
| 3091 } | |
| 3092 | |
| 3093 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
| 3094 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
| 3095 } | |
| 3096 | |
| 3097 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
| 3098 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
| 3099 } | |
| 3100 | |
| 3101 // only used for value types | |
| 3102 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
| 3103 int offset) { | |
| 3104 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3105 } | |
| 3106 | |
| 3107 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
| 3108 int offset) { | |
| 3109 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3110 } | |
| 3111 | |
| 3112 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
| 3113 int offset) { | |
| 3114 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3115 } | |
| 3116 | |
| 3117 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
| 3118 int offset) { | |
| 3119 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
| 3120 } | |
| 3121 | |
| 3122 // needs to be platform dep for the 32 bit platforms. | |
| 3123 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
| 3124 int offset) { | |
| 3125 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
| 3126 } | |
| 3127 | |
| 3128 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
| 3129 address addr, int offset) { | |
| 3130 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
| 3131 ((VMJavaVal64*)addr)->d); | |
| 3132 } | |
| 3133 | |
| 3134 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
| 3135 int offset) { | |
| 3136 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3137 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
| 3138 } | |
| 3139 | |
| 3140 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
| 3141 address addr, int offset) { | |
| 3142 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
| 3143 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
| 3144 ((VMJavaVal64*)addr)->l; | |
| 3145 } | |
| 3146 | |
| 3147 // Locals | |
| 3148 | |
| 3149 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
| 3150 return (address)locals[Interpreter::local_index_at(-offset)]; | |
| 3151 } | |
| 3152 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
| 3153 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
| 3154 } | |
| 3155 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
| 3156 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
| 3157 } | |
| 3158 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
| 3159 return (oop)locals[Interpreter::local_index_at(-offset)]; | |
| 3160 } | |
| 3161 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
| 3162 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
| 3163 } | |
| 3164 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
| 3165 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
| 3166 } | |
| 3167 | |
| 3168 // Returns the address of locals value. | |
| 3169 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
| 3170 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3171 } | |
| 3172 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
| 3173 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
| 3174 } | |
| 3175 | |
| 3176 // Used for local value or returnAddress | |
| 3177 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
| 3178 address value, int offset) { | |
| 3179 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3180 } | |
| 3181 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
| 3182 jint value, int offset) { | |
| 3183 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3184 } | |
| 3185 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
| 3186 jfloat value, int offset) { | |
| 3187 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3188 } | |
| 3189 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
| 3190 oop value, int offset) { | |
| 3191 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
| 3192 } | |
| 3193 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
| 3194 jdouble value, int offset) { | |
| 3195 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
| 3196 } | |
| 3197 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
| 3198 jlong value, int offset) { | |
| 3199 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
| 3200 } | |
| 3201 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
| 3202 address addr, int offset) { | |
| 3203 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
| 3204 } | |
| 3205 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
| 3206 address addr, int offset) { | |
| 3207 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
| 3208 } | |
| 3209 | |
| 3210 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
| 3211 intptr_t* locals, int locals_offset) { | |
| 3212 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
| 3213 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
| 3214 } | |
| 3215 | |
| 3216 | |
| 3217 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
| 3218 int to_offset) { | |
| 3219 tos[Interpreter::expr_index_at(-to_offset)] = | |
| 3220 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
| 3221 } | |
| 3222 | |
| 3223 void BytecodeInterpreter::dup(intptr_t *tos) { | |
| 3224 copy_stack_slot(tos, -1, 0); | |
| 3225 } | |
| 3226 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
| 3227 copy_stack_slot(tos, -2, 0); | |
| 3228 copy_stack_slot(tos, -1, 1); | |
| 3229 } | |
| 3230 | |
| 3231 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
| 3232 /* insert top word two down */ | |
| 3233 copy_stack_slot(tos, -1, 0); | |
| 3234 copy_stack_slot(tos, -2, -1); | |
| 3235 copy_stack_slot(tos, 0, -2); | |
| 3236 } | |
| 3237 | |
| 3238 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
| 3239 /* insert top word three down */ | |
| 3240 copy_stack_slot(tos, -1, 0); | |
| 3241 copy_stack_slot(tos, -2, -1); | |
| 3242 copy_stack_slot(tos, -3, -2); | |
| 3243 copy_stack_slot(tos, 0, -3); | |
| 3244 } | |
| 3245 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
| 3246 /* insert top 2 slots three down */ | |
| 3247 copy_stack_slot(tos, -1, 1); | |
| 3248 copy_stack_slot(tos, -2, 0); | |
| 3249 copy_stack_slot(tos, -3, -1); | |
| 3250 copy_stack_slot(tos, 1, -2); | |
| 3251 copy_stack_slot(tos, 0, -3); | |
| 3252 } | |
| 3253 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
| 3254 /* insert top 2 slots four down */ | |
| 3255 copy_stack_slot(tos, -1, 1); | |
| 3256 copy_stack_slot(tos, -2, 0); | |
| 3257 copy_stack_slot(tos, -3, -1); | |
| 3258 copy_stack_slot(tos, -4, -2); | |
| 3259 copy_stack_slot(tos, 1, -3); | |
| 3260 copy_stack_slot(tos, 0, -4); | |
| 3261 } | |
| 3262 | |
| 3263 | |
| 3264 void BytecodeInterpreter::swap(intptr_t *tos) { | |
| 3265 // swap top two elements | |
| 3266 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
| 3267 // Copy -2 entry to -1 | |
| 3268 copy_stack_slot(tos, -2, -1); | |
| 3269 // Store saved -1 entry into -2 | |
| 3270 tos[Interpreter::expr_index_at(2)] = val; | |
| 3271 } | |
| 3272 // -------------------------------------------------------------------------------- | |
| 3273 // Non-product code | |
| 3274 #ifndef PRODUCT | |
| 3275 | |
| 3276 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
| 3277 switch (msg) { | |
| 3278 case BytecodeInterpreter::no_request: return("no_request"); | |
| 3279 case BytecodeInterpreter::initialize: return("initialize"); | |
| 3280 // status message to C++ interpreter | |
| 3281 case BytecodeInterpreter::method_entry: return("method_entry"); | |
| 3282 case BytecodeInterpreter::method_resume: return("method_resume"); | |
| 3283 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
| 3284 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
| 3285 // requests to frame manager from C++ interpreter | |
| 3286 case BytecodeInterpreter::call_method: return("call_method"); | |
| 3287 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
| 3288 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
| 3289 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
| 3290 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
| 3291 case BytecodeInterpreter::do_osr: return("do_osr"); | |
| 3292 // deopt | |
| 3293 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
| 3294 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
| 3295 default: return("BAD MSG"); | |
| 3296 } | |
| 3297 } | |
| 3298 void | |
| 3299 BytecodeInterpreter::print() { | |
| 3300 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
| 3301 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
| 3302 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
| 3303 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
| 3304 { | |
| 3305 ResourceMark rm; | |
| 3306 char *method_name = _method->name_and_sig_as_C_string(); | |
| 3307 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
| 3308 } | |
| 3309 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
| 3310 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
| 3311 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
| 3312 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
| 3313 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
| 3314 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
| 3315 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
| 3316 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
| 3317 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
| 3318 tty->print_cr("native_mirror: " INTPTR_FORMAT, (uintptr_t) this->_oop_temp); | |
| 3319 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); | |
| 3320 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
| 3321 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
| 3322 #ifdef SPARC | |
| 3323 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
| 3324 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
| 3325 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
| 3326 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
| 3327 #endif | |
| 7994 | 3328 #if !defined(ZERO) |
| 0 | 3329 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
| 7994 | 3330 #endif // !ZERO |
| 0 | 3331 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
| 3332 } | |
| 3333 | |
| 3334 extern "C" { | |
|
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3335 void PI(uintptr_t arg) { |
|
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3336 ((BytecodeInterpreter*)arg)->print(); |
|
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|
3337 } |
| 0 | 3338 } |
| 3339 #endif // PRODUCT | |
| 3340 | |
| 3341 #endif // JVMTI | |
| 3342 #endif // CC_INTERP |