Mercurial > hg > graal-compiler
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 8018:cdb46031e718 jdk8-b77
Added tag hs25-b18 for changeset 412d722168bc
| author | amurillo |
|---|---|
| date | Fri, 08 Feb 2013 08:07:07 -0800 |
| parents | db9981fd3124 |
| children | 0094485b46c7 |
| rev | line source |
|---|---|
| 1010 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 2480 | 3 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. |
| 1010 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 1010 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #include "precompiled.hpp" |
| 27 #include "asm/assembler.hpp" | |
| 28 #include "interpreter/bytecodeHistogram.hpp" | |
| 29 #include "interpreter/cppInterpreter.hpp" | |
| 30 #include "interpreter/interpreter.hpp" | |
| 31 #include "interpreter/interpreterGenerator.hpp" | |
| 32 #include "interpreter/interpreterRuntime.hpp" | |
| 33 #include "oops/arrayOop.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
| 1972 | 36 #include "oops/oop.inline.hpp" |
| 37 #include "prims/jvmtiExport.hpp" | |
| 38 #include "prims/jvmtiThreadState.hpp" | |
| 39 #include "runtime/arguments.hpp" | |
| 40 #include "runtime/deoptimization.hpp" | |
| 41 #include "runtime/frame.inline.hpp" | |
| 42 #include "runtime/interfaceSupport.hpp" | |
| 43 #include "runtime/sharedRuntime.hpp" | |
| 44 #include "runtime/stubRoutines.hpp" | |
| 45 #include "runtime/synchronizer.hpp" | |
| 46 #include "runtime/timer.hpp" | |
| 47 #include "runtime/vframeArray.hpp" | |
| 48 #include "stack_zero.inline.hpp" | |
| 49 #include "utilities/debug.hpp" | |
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50 #include "utilities/macros.hpp" |
| 1972 | 51 #ifdef SHARK |
| 52 #include "shark/shark_globals.hpp" | |
| 53 #endif | |
| 1010 | 54 |
| 55 #ifdef CC_INTERP | |
| 56 | |
| 57 #define fixup_after_potential_safepoint() \ | |
| 58 method = istate->method() | |
| 59 | |
| 2480 | 60 #define CALL_VM_NOCHECK_NOFIX(func) \ |
| 1010 | 61 thread->set_last_Java_frame(); \ |
| 62 func; \ | |
| 2480 | 63 thread->reset_last_Java_frame(); |
| 64 | |
| 65 #define CALL_VM_NOCHECK(func) \ | |
| 66 CALL_VM_NOCHECK_NOFIX(func) \ | |
| 1010 | 67 fixup_after_potential_safepoint() |
| 68 | |
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69 int CppInterpreter::normal_entry(Method* method, intptr_t UNUSED, TRAPS) { |
| 1010 | 70 JavaThread *thread = (JavaThread *) THREAD; |
| 71 | |
| 72 // Allocate and initialize our frame. | |
| 1514 | 73 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
| 1010 | 74 thread->push_zero_frame(frame); |
| 75 | |
| 76 // Execute those bytecodes! | |
| 77 main_loop(0, THREAD); | |
| 1514 | 78 |
| 79 // No deoptimized frames on the stack | |
| 80 return 0; | |
| 1010 | 81 } |
| 82 | |
| 83 void CppInterpreter::main_loop(int recurse, TRAPS) { | |
| 84 JavaThread *thread = (JavaThread *) THREAD; | |
| 85 ZeroStack *stack = thread->zero_stack(); | |
| 86 | |
| 87 // If we are entering from a deopt we may need to call | |
| 88 // ourself a few times in order to get to our frame. | |
| 89 if (recurse) | |
| 90 main_loop(recurse - 1, THREAD); | |
| 91 | |
| 92 InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); | |
| 93 interpreterState istate = frame->interpreter_state(); | |
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94 Method* method = istate->method(); |
| 1010 | 95 |
| 96 intptr_t *result = NULL; | |
| 97 int result_slots = 0; | |
| 98 | |
| 99 while (true) { | |
| 100 // We can set up the frame anchor with everything we want at | |
| 101 // this point as we are thread_in_Java and no safepoints can | |
| 102 // occur until we go to vm mode. We do have to clear flags | |
| 103 // on return from vm but that is it. | |
| 104 thread->set_last_Java_frame(); | |
| 105 | |
| 106 // Call the interpreter | |
| 107 if (JvmtiExport::can_post_interpreter_events()) | |
| 108 BytecodeInterpreter::runWithChecks(istate); | |
| 109 else | |
| 110 BytecodeInterpreter::run(istate); | |
| 111 fixup_after_potential_safepoint(); | |
| 112 | |
| 113 // Clear the frame anchor | |
| 114 thread->reset_last_Java_frame(); | |
| 115 | |
| 116 // Examine the message from the interpreter to decide what to do | |
| 117 if (istate->msg() == BytecodeInterpreter::call_method) { | |
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118 Method* callee = istate->callee(); |
| 1010 | 119 |
| 120 // Trim back the stack to put the parameters at the top | |
| 121 stack->set_sp(istate->stack() + 1); | |
| 122 | |
| 123 // Make the call | |
| 124 Interpreter::invoke_method(callee, istate->callee_entry_point(), THREAD); | |
| 125 fixup_after_potential_safepoint(); | |
| 126 | |
| 127 // Convert the result | |
| 128 istate->set_stack(stack->sp() - 1); | |
| 129 | |
| 130 // Restore the stack | |
| 131 stack->set_sp(istate->stack_limit() + 1); | |
| 132 | |
| 133 // Resume the interpreter | |
| 134 istate->set_msg(BytecodeInterpreter::method_resume); | |
| 135 } | |
| 136 else if (istate->msg() == BytecodeInterpreter::more_monitors) { | |
| 137 int monitor_words = frame::interpreter_frame_monitor_size(); | |
| 138 | |
| 139 // Allocate the space | |
| 1379 | 140 stack->overflow_check(monitor_words, THREAD); |
| 141 if (HAS_PENDING_EXCEPTION) | |
| 142 break; | |
| 1010 | 143 stack->alloc(monitor_words * wordSize); |
| 144 | |
| 145 // Move the expression stack contents | |
| 146 for (intptr_t *p = istate->stack() + 1; p < istate->stack_base(); p++) | |
| 147 *(p - monitor_words) = *p; | |
| 148 | |
| 149 // Move the expression stack pointers | |
| 150 istate->set_stack_limit(istate->stack_limit() - monitor_words); | |
| 151 istate->set_stack(istate->stack() - monitor_words); | |
| 152 istate->set_stack_base(istate->stack_base() - monitor_words); | |
| 153 | |
| 154 // Zero the new monitor so the interpreter can find it. | |
| 155 ((BasicObjectLock *) istate->stack_base())->set_obj(NULL); | |
| 156 | |
| 157 // Resume the interpreter | |
| 158 istate->set_msg(BytecodeInterpreter::got_monitors); | |
| 159 } | |
| 160 else if (istate->msg() == BytecodeInterpreter::return_from_method) { | |
| 161 // Copy the result into the caller's frame | |
| 1256 | 162 result_slots = type2size[result_type_of(method)]; |
| 1010 | 163 assert(result_slots >= 0 && result_slots <= 2, "what?"); |
| 164 result = istate->stack() + result_slots; | |
| 165 break; | |
| 166 } | |
| 167 else if (istate->msg() == BytecodeInterpreter::throwing_exception) { | |
| 168 assert(HAS_PENDING_EXCEPTION, "should do"); | |
| 169 break; | |
| 170 } | |
| 171 else if (istate->msg() == BytecodeInterpreter::do_osr) { | |
| 172 // Unwind the current frame | |
| 173 thread->pop_zero_frame(); | |
| 174 | |
| 175 // Remove any extension of the previous frame | |
| 176 int extra_locals = method->max_locals() - method->size_of_parameters(); | |
| 177 stack->set_sp(stack->sp() + extra_locals); | |
| 178 | |
| 179 // Jump into the OSR method | |
| 180 Interpreter::invoke_osr( | |
| 181 method, istate->osr_entry(), istate->osr_buf(), THREAD); | |
| 182 return; | |
| 183 } | |
| 184 else { | |
| 185 ShouldNotReachHere(); | |
| 186 } | |
| 187 } | |
| 188 | |
| 189 // Unwind the current frame | |
| 190 thread->pop_zero_frame(); | |
| 191 | |
| 192 // Pop our local variables | |
| 193 stack->set_sp(stack->sp() + method->max_locals()); | |
| 194 | |
| 195 // Push our result | |
| 196 for (int i = 0; i < result_slots; i++) | |
| 197 stack->push(result[-i]); | |
| 198 } | |
| 199 | |
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200 int CppInterpreter::native_entry(Method* method, intptr_t UNUSED, TRAPS) { |
| 1010 | 201 // Make sure method is native and not abstract |
| 202 assert(method->is_native() && !method->is_abstract(), "should be"); | |
| 203 | |
| 204 JavaThread *thread = (JavaThread *) THREAD; | |
| 205 ZeroStack *stack = thread->zero_stack(); | |
| 206 | |
| 207 // Allocate and initialize our frame | |
| 1514 | 208 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
| 1010 | 209 thread->push_zero_frame(frame); |
| 210 interpreterState istate = frame->interpreter_state(); | |
| 211 intptr_t *locals = istate->locals(); | |
| 212 | |
| 1078 | 213 // Update the invocation counter |
| 214 if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { | |
| 215 InvocationCounter *counter = method->invocation_counter(); | |
| 216 counter->increment(); | |
| 217 if (counter->reached_InvocationLimit()) { | |
| 218 CALL_VM_NOCHECK( | |
| 219 InterpreterRuntime::frequency_counter_overflow(thread, NULL)); | |
| 220 if (HAS_PENDING_EXCEPTION) | |
| 221 goto unwind_and_return; | |
| 222 } | |
| 223 } | |
| 224 | |
| 1010 | 225 // Lock if necessary |
| 226 BasicObjectLock *monitor; | |
| 227 monitor = NULL; | |
| 228 if (method->is_synchronized()) { | |
| 229 monitor = (BasicObjectLock*) istate->stack_base(); | |
| 230 oop lockee = monitor->obj(); | |
| 231 markOop disp = lockee->mark()->set_unlocked(); | |
| 232 | |
| 233 monitor->lock()->set_displaced_header(disp); | |
| 234 if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { | |
| 235 if (thread->is_lock_owned((address) disp->clear_lock_bits())) { | |
| 236 monitor->lock()->set_displaced_header(NULL); | |
| 237 } | |
| 238 else { | |
| 239 CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); | |
| 240 if (HAS_PENDING_EXCEPTION) | |
| 241 goto unwind_and_return; | |
| 242 } | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 // Get the signature handler | |
| 247 InterpreterRuntime::SignatureHandler *handler; { | |
| 248 address handlerAddr = method->signature_handler(); | |
| 249 if (handlerAddr == NULL) { | |
| 250 CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); | |
| 251 if (HAS_PENDING_EXCEPTION) | |
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252 goto unlock_unwind_and_return; |
| 1010 | 253 |
| 254 handlerAddr = method->signature_handler(); | |
| 255 assert(handlerAddr != NULL, "eh?"); | |
| 256 } | |
| 257 if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { | |
| 258 CALL_VM_NOCHECK(handlerAddr = | |
| 259 InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); | |
| 260 if (HAS_PENDING_EXCEPTION) | |
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261 goto unlock_unwind_and_return; |
| 1010 | 262 } |
| 263 handler = \ | |
| 264 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
| 265 } | |
| 266 | |
| 267 // Get the native function entry point | |
| 268 address function; | |
| 269 function = method->native_function(); | |
| 270 assert(function != NULL, "should be set if signature handler is"); | |
| 271 | |
| 272 // Build the argument list | |
| 1379 | 273 stack->overflow_check(handler->argument_count() * 2, THREAD); |
| 274 if (HAS_PENDING_EXCEPTION) | |
| 275 goto unlock_unwind_and_return; | |
| 276 | |
| 1010 | 277 void **arguments; |
| 278 void *mirror; { | |
| 279 arguments = | |
| 280 (void **) stack->alloc(handler->argument_count() * sizeof(void **)); | |
| 281 void **dst = arguments; | |
| 282 | |
| 283 void *env = thread->jni_environment(); | |
| 284 *(dst++) = &env; | |
| 285 | |
| 286 if (method->is_static()) { | |
| 287 istate->set_oop_temp( | |
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288 method->constants()->pool_holder()->java_mirror()); |
| 1010 | 289 mirror = istate->oop_temp_addr(); |
| 290 *(dst++) = &mirror; | |
| 291 } | |
| 292 | |
| 293 intptr_t *src = locals; | |
| 294 for (int i = dst - arguments; i < handler->argument_count(); i++) { | |
| 295 ffi_type *type = handler->argument_type(i); | |
| 296 if (type == &ffi_type_pointer) { | |
| 297 if (*src) { | |
| 298 stack->push((intptr_t) src); | |
| 299 *(dst++) = stack->sp(); | |
| 300 } | |
| 301 else { | |
| 302 *(dst++) = src; | |
| 303 } | |
| 304 src--; | |
| 305 } | |
| 306 else if (type->size == 4) { | |
| 307 *(dst++) = src--; | |
| 308 } | |
| 309 else if (type->size == 8) { | |
| 310 src--; | |
| 311 *(dst++) = src--; | |
| 312 } | |
| 313 else { | |
| 314 ShouldNotReachHere(); | |
| 315 } | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 // Set up the Java frame anchor | |
| 320 thread->set_last_Java_frame(); | |
| 321 | |
| 322 // Change the thread state to _thread_in_native | |
| 323 ThreadStateTransition::transition_from_java(thread, _thread_in_native); | |
| 324 | |
| 325 // Make the call | |
| 326 intptr_t result[4 - LogBytesPerWord]; | |
| 327 ffi_call(handler->cif(), (void (*)()) function, result, arguments); | |
| 328 | |
| 329 // Change the thread state back to _thread_in_Java. | |
| 330 // ThreadStateTransition::transition_from_native() cannot be used | |
| 331 // here because it does not check for asynchronous exceptions. | |
| 332 // We have to manage the transition ourself. | |
| 333 thread->set_thread_state(_thread_in_native_trans); | |
| 334 | |
| 335 // Make sure new state is visible in the GC thread | |
| 336 if (os::is_MP()) { | |
| 337 if (UseMembar) { | |
| 338 OrderAccess::fence(); | |
| 339 } | |
| 340 else { | |
| 341 InterfaceSupport::serialize_memory(thread); | |
| 342 } | |
| 343 } | |
| 344 | |
| 345 // Handle safepoint operations, pending suspend requests, | |
| 346 // and pending asynchronous exceptions. | |
| 347 if (SafepointSynchronize::do_call_back() || | |
| 348 thread->has_special_condition_for_native_trans()) { | |
| 349 JavaThread::check_special_condition_for_native_trans(thread); | |
| 350 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); | |
| 351 } | |
| 352 | |
| 353 // Finally we can change the thread state to _thread_in_Java. | |
| 354 thread->set_thread_state(_thread_in_Java); | |
| 355 fixup_after_potential_safepoint(); | |
| 356 | |
| 357 // Clear the frame anchor | |
| 358 thread->reset_last_Java_frame(); | |
| 359 | |
| 360 // If the result was an oop then unbox it and store it in | |
| 361 // oop_temp where the garbage collector can see it before | |
| 362 // we release the handle it might be protected by. | |
| 363 if (handler->result_type() == &ffi_type_pointer) { | |
| 364 if (result[0]) | |
| 365 istate->set_oop_temp(*(oop *) result[0]); | |
| 366 else | |
| 367 istate->set_oop_temp(NULL); | |
| 368 } | |
| 369 | |
| 370 // Reset handle block | |
| 371 thread->active_handles()->clear(); | |
| 372 | |
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373 unlock_unwind_and_return: |
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374 |
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375 // Unlock if necessary |
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376 if (monitor) { |
| 1010 | 377 BasicLock *lock = monitor->lock(); |
| 378 markOop header = lock->displaced_header(); | |
| 379 oop rcvr = monitor->obj(); | |
| 380 monitor->set_obj(NULL); | |
| 381 | |
| 382 if (header != NULL) { | |
| 383 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { | |
| 384 monitor->set_obj(rcvr); { | |
| 385 HandleMark hm(thread); | |
| 386 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); | |
| 387 } | |
| 388 } | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 unwind_and_return: | |
| 393 | |
| 394 // Unwind the current activation | |
| 395 thread->pop_zero_frame(); | |
| 396 | |
| 397 // Pop our parameters | |
| 398 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
| 399 | |
| 400 // Push our result | |
| 401 if (!HAS_PENDING_EXCEPTION) { | |
| 1256 | 402 BasicType type = result_type_of(method); |
| 403 stack->set_sp(stack->sp() - type2size[type]); | |
| 1010 | 404 |
| 1256 | 405 switch (type) { |
| 1010 | 406 case T_VOID: |
| 407 break; | |
| 408 | |
| 409 case T_BOOLEAN: | |
| 410 #ifndef VM_LITTLE_ENDIAN | |
| 411 result[0] <<= (BitsPerWord - BitsPerByte); | |
| 412 #endif | |
| 413 SET_LOCALS_INT(*(jboolean *) result != 0, 0); | |
| 414 break; | |
| 415 | |
| 416 case T_CHAR: | |
| 417 #ifndef VM_LITTLE_ENDIAN | |
| 418 result[0] <<= (BitsPerWord - BitsPerShort); | |
| 419 #endif | |
| 420 SET_LOCALS_INT(*(jchar *) result, 0); | |
| 421 break; | |
| 422 | |
| 423 case T_BYTE: | |
| 424 #ifndef VM_LITTLE_ENDIAN | |
| 425 result[0] <<= (BitsPerWord - BitsPerByte); | |
| 426 #endif | |
| 427 SET_LOCALS_INT(*(jbyte *) result, 0); | |
| 428 break; | |
| 429 | |
| 430 case T_SHORT: | |
| 431 #ifndef VM_LITTLE_ENDIAN | |
| 432 result[0] <<= (BitsPerWord - BitsPerShort); | |
| 433 #endif | |
| 434 SET_LOCALS_INT(*(jshort *) result, 0); | |
| 435 break; | |
| 436 | |
| 437 case T_INT: | |
| 438 #ifndef VM_LITTLE_ENDIAN | |
| 439 result[0] <<= (BitsPerWord - BitsPerInt); | |
| 440 #endif | |
| 441 SET_LOCALS_INT(*(jint *) result, 0); | |
| 442 break; | |
| 443 | |
| 444 case T_LONG: | |
| 445 SET_LOCALS_LONG(*(jlong *) result, 0); | |
| 446 break; | |
| 447 | |
| 448 case T_FLOAT: | |
| 449 SET_LOCALS_FLOAT(*(jfloat *) result, 0); | |
| 450 break; | |
| 451 | |
| 452 case T_DOUBLE: | |
| 453 SET_LOCALS_DOUBLE(*(jdouble *) result, 0); | |
| 454 break; | |
| 455 | |
| 456 case T_OBJECT: | |
| 457 case T_ARRAY: | |
| 458 SET_LOCALS_OBJECT(istate->oop_temp(), 0); | |
| 459 break; | |
| 460 | |
| 461 default: | |
| 462 ShouldNotReachHere(); | |
| 463 } | |
| 464 } | |
| 1514 | 465 |
| 466 // No deoptimized frames on the stack | |
| 467 return 0; | |
| 1010 | 468 } |
| 469 | |
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470 int CppInterpreter::accessor_entry(Method* method, intptr_t UNUSED, TRAPS) { |
| 1010 | 471 JavaThread *thread = (JavaThread *) THREAD; |
| 472 ZeroStack *stack = thread->zero_stack(); | |
| 473 intptr_t *locals = stack->sp(); | |
| 474 | |
| 475 // Drop into the slow path if we need a safepoint check | |
| 476 if (SafepointSynchronize::do_call_back()) { | |
| 1514 | 477 return normal_entry(method, 0, THREAD); |
| 1010 | 478 } |
| 479 | |
| 480 // Load the object pointer and drop into the slow path | |
| 481 // if we have a NullPointerException | |
| 482 oop object = LOCALS_OBJECT(0); | |
| 483 if (object == NULL) { | |
| 1514 | 484 return normal_entry(method, 0, THREAD); |
| 1010 | 485 } |
| 486 | |
| 487 // Read the field index from the bytecode, which looks like this: | |
| 488 // 0: aload_0 | |
| 489 // 1: getfield | |
| 490 // 2: index | |
| 491 // 3: index | |
| 492 // 4: ireturn/areturn | |
| 493 // NB this is not raw bytecode: index is in machine order | |
| 494 u1 *code = method->code_base(); | |
| 495 assert(code[0] == Bytecodes::_aload_0 && | |
| 496 code[1] == Bytecodes::_getfield && | |
| 497 (code[4] == Bytecodes::_ireturn || | |
| 498 code[4] == Bytecodes::_areturn), "should do"); | |
| 499 u2 index = Bytes::get_native_u2(&code[2]); | |
| 500 | |
| 501 // Get the entry from the constant pool cache, and drop into | |
| 502 // the slow path if it has not been resolved | |
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503 ConstantPoolCache* cache = method->constants()->cache(); |
| 1010 | 504 ConstantPoolCacheEntry* entry = cache->entry_at(index); |
| 505 if (!entry->is_resolved(Bytecodes::_getfield)) { | |
| 1514 | 506 return normal_entry(method, 0, THREAD); |
| 1010 | 507 } |
| 508 | |
| 509 // Get the result and push it onto the stack | |
| 510 switch (entry->flag_state()) { | |
| 511 case ltos: | |
| 512 case dtos: | |
| 1514 | 513 stack->overflow_check(1, CHECK_0); |
| 1010 | 514 stack->alloc(wordSize); |
| 515 break; | |
| 516 } | |
| 517 if (entry->is_volatile()) { | |
| 518 switch (entry->flag_state()) { | |
| 519 case ctos: | |
| 6926 | 520 SET_LOCALS_INT(object->char_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 521 break; |
| 522 | |
| 523 case btos: | |
| 6926 | 524 SET_LOCALS_INT(object->byte_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 525 break; |
| 526 | |
| 527 case stos: | |
| 6926 | 528 SET_LOCALS_INT(object->short_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 529 break; |
| 530 | |
| 531 case itos: | |
| 6926 | 532 SET_LOCALS_INT(object->int_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 533 break; |
| 534 | |
| 535 case ltos: | |
| 6926 | 536 SET_LOCALS_LONG(object->long_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 537 break; |
| 538 | |
| 539 case ftos: | |
| 6926 | 540 SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 541 break; |
| 542 | |
| 543 case dtos: | |
| 6926 | 544 SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 545 break; |
| 546 | |
| 547 case atos: | |
| 6926 | 548 SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2_as_index()), 0); |
| 1010 | 549 break; |
| 550 | |
| 551 default: | |
| 552 ShouldNotReachHere(); | |
| 553 } | |
| 554 } | |
| 555 else { | |
| 556 switch (entry->flag_state()) { | |
| 557 case ctos: | |
| 6926 | 558 SET_LOCALS_INT(object->char_field(entry->f2_as_index()), 0); |
| 1010 | 559 break; |
| 560 | |
| 561 case btos: | |
| 6926 | 562 SET_LOCALS_INT(object->byte_field(entry->f2_as_index()), 0); |
| 1010 | 563 break; |
| 564 | |
| 565 case stos: | |
| 6926 | 566 SET_LOCALS_INT(object->short_field(entry->f2_as_index()), 0); |
| 1010 | 567 break; |
| 568 | |
| 569 case itos: | |
| 6926 | 570 SET_LOCALS_INT(object->int_field(entry->f2_as_index()), 0); |
| 1010 | 571 break; |
| 572 | |
| 573 case ltos: | |
| 6926 | 574 SET_LOCALS_LONG(object->long_field(entry->f2_as_index()), 0); |
| 1010 | 575 break; |
| 576 | |
| 577 case ftos: | |
| 6926 | 578 SET_LOCALS_FLOAT(object->float_field(entry->f2_as_index()), 0); |
| 1010 | 579 break; |
| 580 | |
| 581 case dtos: | |
| 6926 | 582 SET_LOCALS_DOUBLE(object->double_field(entry->f2_as_index()), 0); |
| 1010 | 583 break; |
| 584 | |
| 585 case atos: | |
| 6926 | 586 SET_LOCALS_OBJECT(object->obj_field(entry->f2_as_index()), 0); |
| 1010 | 587 break; |
| 588 | |
| 589 default: | |
| 590 ShouldNotReachHere(); | |
| 591 } | |
| 592 } | |
| 1514 | 593 |
| 594 // No deoptimized frames on the stack | |
| 595 return 0; | |
| 1010 | 596 } |
| 597 | |
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598 int CppInterpreter::empty_entry(Method* method, intptr_t UNUSED, TRAPS) { |
| 1010 | 599 JavaThread *thread = (JavaThread *) THREAD; |
| 600 ZeroStack *stack = thread->zero_stack(); | |
| 601 | |
| 602 // Drop into the slow path if we need a safepoint check | |
| 603 if (SafepointSynchronize::do_call_back()) { | |
| 1514 | 604 return normal_entry(method, 0, THREAD); |
| 1010 | 605 } |
| 606 | |
| 607 // Pop our parameters | |
| 608 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
| 1514 | 609 |
| 610 // No deoptimized frames on the stack | |
| 611 return 0; | |
| 1010 | 612 } |
| 613 | |
| 2480 | 614 // The new slots will be inserted before slot insert_before. |
| 615 // Slots < insert_before will have the same slot number after the insert. | |
| 616 // Slots >= insert_before will become old_slot + num_slots. | |
| 617 void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { | |
| 618 JavaThread *thread = (JavaThread *) THREAD; | |
| 619 ZeroStack *stack = thread->zero_stack(); | |
| 620 | |
| 621 // Allocate the space | |
| 622 stack->overflow_check(num_slots, CHECK); | |
| 623 stack->alloc(num_slots * wordSize); | |
| 624 intptr_t *vmslots = stack->sp(); | |
| 625 | |
| 626 // Shuffle everything up | |
| 627 for (int i = 0; i < insert_before; i++) | |
| 628 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); | |
| 629 } | |
| 630 | |
| 631 void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { | |
| 632 JavaThread *thread = (JavaThread *) THREAD; | |
| 633 ZeroStack *stack = thread->zero_stack(); | |
| 634 intptr_t *vmslots = stack->sp(); | |
| 635 | |
| 636 // Move everything down | |
| 637 for (int i = first_slot - 1; i >= 0; i--) | |
| 638 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); | |
| 639 | |
| 640 // Deallocate the space | |
| 641 stack->set_sp(stack->sp() + num_slots); | |
| 642 } | |
| 643 | |
| 644 BasicType CppInterpreter::result_type_of_handle(oop method_handle) { | |
| 645 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
| 646 oop return_type = java_lang_invoke_MethodType::rtype(method_type); | |
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647 return java_lang_Class::as_BasicType(return_type, (Klass* *) NULL); |
| 2480 | 648 } |
| 649 | |
| 650 intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, | |
| 651 oop method_handle) { | |
| 652 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
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653 int argument_slots = java_lang_invoke_MethodType::ptype_slot_count(method_type); |
| 2480 | 654 |
| 655 return stack->sp() + argument_slots; | |
| 656 } | |
| 657 | |
| 658 IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, | |
| 659 Symbol* name, | |
| 660 char* message)) | |
| 661 THROW_MSG(name, message); | |
| 662 IRT_END | |
| 663 | |
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664 InterpreterFrame *InterpreterFrame::build(Method* const method, TRAPS) { |
| 1379 | 665 JavaThread *thread = (JavaThread *) THREAD; |
| 666 ZeroStack *stack = thread->zero_stack(); | |
| 667 | |
| 668 // Calculate the size of the frame we'll build, including | |
| 669 // any adjustments to the caller's frame that we'll make. | |
| 670 int extra_locals = 0; | |
| 671 int monitor_words = 0; | |
| 672 int stack_words = 0; | |
| 1010 | 673 |
| 1379 | 674 if (!method->is_native()) { |
| 675 extra_locals = method->max_locals() - method->size_of_parameters(); | |
| 676 stack_words = method->max_stack(); | |
| 1010 | 677 } |
| 1379 | 678 if (method->is_synchronized()) { |
| 679 monitor_words = frame::interpreter_frame_monitor_size(); | |
| 680 } | |
| 681 stack->overflow_check( | |
| 682 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
| 1010 | 683 |
| 1379 | 684 // Adjust the caller's stack frame to accomodate any additional |
| 685 // local variables we have contiguously with our parameters. | |
| 686 for (int i = 0; i < extra_locals; i++) | |
| 687 stack->push(0); | |
| 1010 | 688 |
| 689 intptr_t *locals; | |
| 690 if (method->is_native()) | |
| 691 locals = stack->sp() + (method->size_of_parameters() - 1); | |
| 692 else | |
| 693 locals = stack->sp() + (method->max_locals() - 1); | |
| 694 | |
| 695 stack->push(0); // next_frame, filled in later | |
| 696 intptr_t *fp = stack->sp(); | |
| 697 assert(fp - stack->sp() == next_frame_off, "should be"); | |
| 698 | |
| 699 stack->push(INTERPRETER_FRAME); | |
| 700 assert(fp - stack->sp() == frame_type_off, "should be"); | |
| 701 | |
| 702 interpreterState istate = | |
| 703 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
| 704 assert(fp - stack->sp() == istate_off, "should be"); | |
| 705 | |
| 706 istate->set_locals(locals); | |
| 707 istate->set_method(method); | |
| 708 istate->set_self_link(istate); | |
| 709 istate->set_prev_link(NULL); | |
| 710 istate->set_thread(thread); | |
| 711 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
| 712 istate->set_constants(method->constants()->cache()); | |
| 713 istate->set_msg(BytecodeInterpreter::method_entry); | |
| 714 istate->set_oop_temp(NULL); | |
| 715 istate->set_mdx(NULL); | |
| 716 istate->set_callee(NULL); | |
| 717 | |
| 718 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
| 719 if (method->is_synchronized()) { | |
| 720 BasicObjectLock *monitor = | |
| 721 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
| 722 oop object; | |
| 723 if (method->is_static()) | |
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724 object = method->constants()->pool_holder()->java_mirror(); |
| 1010 | 725 else |
| 726 object = (oop) locals[0]; | |
| 727 monitor->set_obj(object); | |
| 728 } | |
| 729 | |
| 730 istate->set_stack_base(stack->sp()); | |
| 731 istate->set_stack(stack->sp() - 1); | |
| 732 if (stack_words) | |
| 733 stack->alloc(stack_words * wordSize); | |
| 734 istate->set_stack_limit(stack->sp() - 1); | |
| 735 | |
| 736 return (InterpreterFrame *) fp; | |
| 737 } | |
| 738 | |
| 739 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 740 int i = 0; | |
| 741 switch (type) { | |
| 742 case T_BOOLEAN: i = 0; break; | |
| 743 case T_CHAR : i = 1; break; | |
| 744 case T_BYTE : i = 2; break; | |
| 745 case T_SHORT : i = 3; break; | |
| 746 case T_INT : i = 4; break; | |
| 747 case T_LONG : i = 5; break; | |
| 748 case T_VOID : i = 6; break; | |
| 749 case T_FLOAT : i = 7; break; | |
| 750 case T_DOUBLE : i = 8; break; | |
| 751 case T_OBJECT : i = 9; break; | |
| 752 case T_ARRAY : i = 9; break; | |
| 753 default : ShouldNotReachHere(); | |
| 754 } | |
| 755 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
| 756 "index out of bounds"); | |
| 757 return i; | |
| 758 } | |
| 759 | |
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760 BasicType CppInterpreter::result_type_of(Method* method) { |
| 1256 | 761 BasicType t; |
| 762 switch (method->result_index()) { | |
| 763 case 0 : t = T_BOOLEAN; break; | |
| 764 case 1 : t = T_CHAR; break; | |
| 765 case 2 : t = T_BYTE; break; | |
| 766 case 3 : t = T_SHORT; break; | |
| 767 case 4 : t = T_INT; break; | |
| 768 case 5 : t = T_LONG; break; | |
| 769 case 6 : t = T_VOID; break; | |
| 770 case 7 : t = T_FLOAT; break; | |
| 771 case 8 : t = T_DOUBLE; break; | |
| 772 case 9 : t = T_OBJECT; break; | |
| 773 default: ShouldNotReachHere(); | |
| 774 } | |
| 775 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
| 776 "out of step with AbstractInterpreter::BasicType_as_index"); | |
| 777 return t; | |
| 778 } | |
| 779 | |
| 1010 | 780 address InterpreterGenerator::generate_empty_entry() { |
| 781 if (!UseFastEmptyMethods) | |
| 782 return NULL; | |
| 783 | |
| 784 return generate_entry((address) CppInterpreter::empty_entry); | |
| 785 } | |
| 786 | |
| 787 address InterpreterGenerator::generate_accessor_entry() { | |
| 788 if (!UseFastAccessorMethods) | |
| 789 return NULL; | |
| 790 | |
| 791 return generate_entry((address) CppInterpreter::accessor_entry); | |
| 792 } | |
| 793 | |
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794 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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795 #if INCLUDE_ALL_GCS |
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796 if (UseG1GC) { |
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797 // We need to generate have a routine that generates code to: |
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798 // * load the value in the referent field |
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799 // * passes that value to the pre-barrier. |
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800 // |
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801 // In the case of G1 this will record the value of the |
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802 // referent in an SATB buffer if marking is active. |
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803 // This will cause concurrent marking to mark the referent |
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804 // field as live. |
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805 Unimplemented(); |
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806 } |
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807 #endif // INCLUDE_ALL_GCS |
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808 |
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809 // If G1 is not enabled then attempt to go through the accessor entry point |
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810 // Reference.get is an accessor |
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811 return generate_accessor_entry(); |
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812 } |
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813 |
| 1010 | 814 address InterpreterGenerator::generate_native_entry(bool synchronized) { |
| 815 assert(synchronized == false, "should be"); | |
| 816 | |
| 817 return generate_entry((address) CppInterpreter::native_entry); | |
| 818 } | |
| 819 | |
| 820 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 821 assert(synchronized == false, "should be"); | |
| 822 | |
| 823 return generate_entry((address) CppInterpreter::normal_entry); | |
| 824 } | |
| 825 | |
| 826 address AbstractInterpreterGenerator::generate_method_entry( | |
| 827 AbstractInterpreter::MethodKind kind) { | |
| 828 address entry_point = NULL; | |
| 829 | |
| 830 switch (kind) { | |
| 831 case Interpreter::zerolocals: | |
| 832 case Interpreter::zerolocals_synchronized: | |
| 833 break; | |
| 834 | |
| 835 case Interpreter::native: | |
| 836 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
| 837 break; | |
| 838 | |
| 839 case Interpreter::native_synchronized: | |
| 840 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
| 841 break; | |
| 842 | |
| 843 case Interpreter::empty: | |
| 844 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
| 845 break; | |
| 846 | |
| 847 case Interpreter::accessor: | |
| 848 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
| 849 break; | |
| 850 | |
| 851 case Interpreter::abstract: | |
| 852 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
| 853 break; | |
| 854 | |
| 855 case Interpreter::java_lang_math_sin: | |
| 856 case Interpreter::java_lang_math_cos: | |
| 857 case Interpreter::java_lang_math_tan: | |
| 858 case Interpreter::java_lang_math_abs: | |
| 859 case Interpreter::java_lang_math_log: | |
| 860 case Interpreter::java_lang_math_log10: | |
| 861 case Interpreter::java_lang_math_sqrt: | |
| 6926 | 862 case Interpreter::java_lang_math_pow: |
| 863 case Interpreter::java_lang_math_exp: | |
| 1010 | 864 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); |
| 865 break; | |
| 866 | |
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867 case Interpreter::java_lang_ref_reference_get: |
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868 entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
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869 break; |
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870 |
| 1010 | 871 default: |
| 872 ShouldNotReachHere(); | |
| 873 } | |
| 874 | |
| 875 if (entry_point == NULL) | |
| 876 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
| 877 | |
| 878 return entry_point; | |
| 879 } | |
| 880 | |
| 881 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 882 : CppInterpreterGenerator(code) { | |
| 883 generate_all(); | |
| 884 } | |
| 885 | |
| 886 // Deoptimization helpers | |
| 887 | |
| 1379 | 888 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
| 889 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
| 890 | |
| 1010 | 891 int size_in_words = size >> LogBytesPerWord; |
| 892 assert(size_in_words * wordSize == size, "unaligned"); | |
| 893 assert(size_in_words >= header_words, "too small"); | |
| 1379 | 894 stack->overflow_check(size_in_words, CHECK_NULL); |
| 1010 | 895 |
| 896 stack->push(0); // next_frame, filled in later | |
| 897 intptr_t *fp = stack->sp(); | |
| 898 assert(fp - stack->sp() == next_frame_off, "should be"); | |
| 899 | |
| 900 stack->push(INTERPRETER_FRAME); | |
| 901 assert(fp - stack->sp() == frame_type_off, "should be"); | |
| 902 | |
| 903 interpreterState istate = | |
| 904 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
| 905 assert(fp - stack->sp() == istate_off, "should be"); | |
| 906 istate->set_self_link(NULL); // mark invalid | |
| 907 | |
| 908 stack->alloc((size_in_words - header_words) * wordSize); | |
| 909 | |
| 910 return (InterpreterFrame *) fp; | |
| 911 } | |
| 912 | |
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913 int AbstractInterpreter::layout_activation(Method* method, |
| 1010 | 914 int tempcount, |
| 915 int popframe_extra_args, | |
| 916 int moncount, | |
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917 int caller_actual_parameters, |
| 1010 | 918 int callee_param_count, |
| 919 int callee_locals, | |
| 920 frame* caller, | |
| 921 frame* interpreter_frame, | |
| 922 bool is_top_frame) { | |
| 923 assert(popframe_extra_args == 0, "what to do?"); | |
| 924 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
| 1605 | 925 "top frame should have no caller"); |
| 1010 | 926 |
| 927 // This code must exactly match what InterpreterFrame::build | |
| 928 // does (the full InterpreterFrame::build, that is, not the | |
| 929 // one that creates empty frames for the deoptimizer). | |
| 930 // | |
| 931 // If interpreter_frame is not NULL then it will be filled in. | |
| 932 // It's size is determined by a previous call to this method, | |
| 933 // so it should be correct. | |
| 934 // | |
| 935 // Note that tempcount is the current size of the expression | |
| 936 // stack. For top most frames we will allocate a full sized | |
| 937 // expression stack and not the trimmed version that non-top | |
| 938 // frames have. | |
| 939 | |
| 940 int header_words = InterpreterFrame::header_words; | |
| 941 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
| 942 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
| 943 int callee_extra_locals = callee_locals - callee_param_count; | |
| 944 | |
| 945 if (interpreter_frame) { | |
| 1505 | 946 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
| 1010 | 947 interpreterState istate = interpreter_frame->get_interpreterState(); |
| 948 intptr_t *monitor_base = (intptr_t*) istate; | |
| 949 intptr_t *stack_base = monitor_base - monitor_words; | |
| 950 intptr_t *stack = stack_base - tempcount - 1; | |
| 951 | |
| 952 BytecodeInterpreter::layout_interpreterState(istate, | |
| 953 caller, | |
| 954 NULL, | |
| 955 method, | |
| 956 locals, | |
| 957 stack, | |
| 958 stack_base, | |
| 959 monitor_base, | |
| 960 NULL, | |
| 961 is_top_frame); | |
| 962 } | |
| 963 return header_words + monitor_words + stack_words + callee_extra_locals; | |
| 964 } | |
| 965 | |
| 966 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
| 967 frame* caller, | |
| 968 frame* current, | |
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969 Method* method, |
| 1010 | 970 intptr_t* locals, |
| 971 intptr_t* stack, | |
| 972 intptr_t* stack_base, | |
| 973 intptr_t* monitor_base, | |
| 974 intptr_t* frame_bottom, | |
| 975 bool is_top_frame) { | |
| 976 istate->set_locals(locals); | |
| 977 istate->set_method(method); | |
| 978 istate->set_self_link(istate); | |
| 979 istate->set_prev_link(NULL); | |
| 980 // thread will be set by a hacky repurposing of frame::patch_pc() | |
| 981 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
| 982 istate->set_constants(method->constants()->cache()); | |
| 983 istate->set_msg(BytecodeInterpreter::method_resume); | |
| 984 istate->set_bcp_advance(0); | |
| 985 istate->set_oop_temp(NULL); | |
| 986 istate->set_mdx(NULL); | |
| 987 if (caller->is_interpreted_frame()) { | |
| 988 interpreterState prev = caller->get_interpreterState(); | |
| 989 prev->set_callee(method); | |
| 990 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
| 991 prev->set_bcp_advance(5); | |
| 992 else | |
| 993 prev->set_bcp_advance(3); | |
| 994 } | |
| 995 istate->set_callee(NULL); | |
| 996 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
| 997 istate->set_stack_base(stack_base); | |
| 998 istate->set_stack(stack); | |
| 999 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
| 1000 } | |
| 1001 | |
| 1002 address CppInterpreter::return_entry(TosState state, int length) { | |
| 1003 ShouldNotCallThis(); | |
| 1004 } | |
| 1005 | |
| 1006 address CppInterpreter::deopt_entry(TosState state, int length) { | |
| 1007 return NULL; | |
| 1008 } | |
| 1009 | |
| 1010 // Helper for (runtime) stack overflow checks | |
| 1011 | |
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1012 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 1010 | 1013 return 0; |
| 1014 } | |
| 1015 | |
| 1016 // Helper for figuring out if frames are interpreter frames | |
| 1017 | |
| 1018 bool CppInterpreter::contains(address pc) { | |
| 1019 return false; // make frame::print_value_on work | |
| 1020 } | |
| 1021 | |
| 1022 // Result handlers and convertors | |
| 1023 | |
| 1024 address CppInterpreterGenerator::generate_result_handler_for( | |
| 1025 BasicType type) { | |
| 1026 assembler()->advance(1); | |
| 1027 return ShouldNotCallThisStub(); | |
| 1028 } | |
| 1029 | |
| 1030 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
| 1031 BasicType type) { | |
| 1032 assembler()->advance(1); | |
| 1033 return ShouldNotCallThisStub(); | |
| 1034 } | |
| 1035 | |
| 1036 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
| 1037 BasicType type) { | |
| 1038 assembler()->advance(1); | |
| 1039 return ShouldNotCallThisStub(); | |
| 1040 } | |
| 1041 | |
| 1042 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
| 1043 BasicType type) { | |
| 1044 assembler()->advance(1); | |
| 1045 return ShouldNotCallThisStub(); | |
| 1046 } | |
| 1047 | |
| 1048 #endif // CC_INTERP |