Mercurial > hg > graal-compiler
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 1845:a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
---|---|
date | Fri, 08 Oct 2010 02:42:17 -0700 |
parents | d179e225c164 |
children | f95d63e2154a |
rev | line source |
---|---|
1010 | 1 /* |
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2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. |
1256 | 3 * Copyright 2007, 2008, 2009, 2010 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 | |
26 #include "incls/_precompiled.incl" | |
27 #include "incls/_cppInterpreter_zero.cpp.incl" | |
28 | |
29 #ifdef CC_INTERP | |
30 | |
31 #define fixup_after_potential_safepoint() \ | |
32 method = istate->method() | |
33 | |
34 #define CALL_VM_NOCHECK(func) \ | |
35 thread->set_last_Java_frame(); \ | |
36 func; \ | |
37 thread->reset_last_Java_frame(); \ | |
38 fixup_after_potential_safepoint() | |
39 | |
1514 | 40 int CppInterpreter::normal_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 41 JavaThread *thread = (JavaThread *) THREAD; |
42 | |
43 // Allocate and initialize our frame. | |
1514 | 44 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 45 thread->push_zero_frame(frame); |
46 | |
47 // Execute those bytecodes! | |
48 main_loop(0, THREAD); | |
1514 | 49 |
50 // No deoptimized frames on the stack | |
51 return 0; | |
1010 | 52 } |
53 | |
54 void CppInterpreter::main_loop(int recurse, TRAPS) { | |
55 JavaThread *thread = (JavaThread *) THREAD; | |
56 ZeroStack *stack = thread->zero_stack(); | |
57 | |
58 // If we are entering from a deopt we may need to call | |
59 // ourself a few times in order to get to our frame. | |
60 if (recurse) | |
61 main_loop(recurse - 1, THREAD); | |
62 | |
63 InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); | |
64 interpreterState istate = frame->interpreter_state(); | |
65 methodOop method = istate->method(); | |
66 | |
67 intptr_t *result = NULL; | |
68 int result_slots = 0; | |
69 | |
70 while (true) { | |
71 // We can set up the frame anchor with everything we want at | |
72 // this point as we are thread_in_Java and no safepoints can | |
73 // occur until we go to vm mode. We do have to clear flags | |
74 // on return from vm but that is it. | |
75 thread->set_last_Java_frame(); | |
76 | |
77 // Call the interpreter | |
78 if (JvmtiExport::can_post_interpreter_events()) | |
79 BytecodeInterpreter::runWithChecks(istate); | |
80 else | |
81 BytecodeInterpreter::run(istate); | |
82 fixup_after_potential_safepoint(); | |
83 | |
84 // Clear the frame anchor | |
85 thread->reset_last_Java_frame(); | |
86 | |
87 // Examine the message from the interpreter to decide what to do | |
88 if (istate->msg() == BytecodeInterpreter::call_method) { | |
89 methodOop callee = istate->callee(); | |
90 | |
91 // Trim back the stack to put the parameters at the top | |
92 stack->set_sp(istate->stack() + 1); | |
93 | |
94 // Make the call | |
95 Interpreter::invoke_method(callee, istate->callee_entry_point(), THREAD); | |
96 fixup_after_potential_safepoint(); | |
97 | |
98 // Convert the result | |
99 istate->set_stack(stack->sp() - 1); | |
100 | |
101 // Restore the stack | |
102 stack->set_sp(istate->stack_limit() + 1); | |
103 | |
104 // Resume the interpreter | |
105 istate->set_msg(BytecodeInterpreter::method_resume); | |
106 } | |
107 else if (istate->msg() == BytecodeInterpreter::more_monitors) { | |
108 int monitor_words = frame::interpreter_frame_monitor_size(); | |
109 | |
110 // Allocate the space | |
1379 | 111 stack->overflow_check(monitor_words, THREAD); |
112 if (HAS_PENDING_EXCEPTION) | |
113 break; | |
1010 | 114 stack->alloc(monitor_words * wordSize); |
115 | |
116 // Move the expression stack contents | |
117 for (intptr_t *p = istate->stack() + 1; p < istate->stack_base(); p++) | |
118 *(p - monitor_words) = *p; | |
119 | |
120 // Move the expression stack pointers | |
121 istate->set_stack_limit(istate->stack_limit() - monitor_words); | |
122 istate->set_stack(istate->stack() - monitor_words); | |
123 istate->set_stack_base(istate->stack_base() - monitor_words); | |
124 | |
125 // Zero the new monitor so the interpreter can find it. | |
126 ((BasicObjectLock *) istate->stack_base())->set_obj(NULL); | |
127 | |
128 // Resume the interpreter | |
129 istate->set_msg(BytecodeInterpreter::got_monitors); | |
130 } | |
131 else if (istate->msg() == BytecodeInterpreter::return_from_method) { | |
132 // Copy the result into the caller's frame | |
1256 | 133 result_slots = type2size[result_type_of(method)]; |
1010 | 134 assert(result_slots >= 0 && result_slots <= 2, "what?"); |
135 result = istate->stack() + result_slots; | |
136 break; | |
137 } | |
138 else if (istate->msg() == BytecodeInterpreter::throwing_exception) { | |
139 assert(HAS_PENDING_EXCEPTION, "should do"); | |
140 break; | |
141 } | |
142 else if (istate->msg() == BytecodeInterpreter::do_osr) { | |
143 // Unwind the current frame | |
144 thread->pop_zero_frame(); | |
145 | |
146 // Remove any extension of the previous frame | |
147 int extra_locals = method->max_locals() - method->size_of_parameters(); | |
148 stack->set_sp(stack->sp() + extra_locals); | |
149 | |
150 // Jump into the OSR method | |
151 Interpreter::invoke_osr( | |
152 method, istate->osr_entry(), istate->osr_buf(), THREAD); | |
153 return; | |
154 } | |
155 else { | |
156 ShouldNotReachHere(); | |
157 } | |
158 } | |
159 | |
160 // Unwind the current frame | |
161 thread->pop_zero_frame(); | |
162 | |
163 // Pop our local variables | |
164 stack->set_sp(stack->sp() + method->max_locals()); | |
165 | |
166 // Push our result | |
167 for (int i = 0; i < result_slots; i++) | |
168 stack->push(result[-i]); | |
169 } | |
170 | |
1514 | 171 int CppInterpreter::native_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 172 // Make sure method is native and not abstract |
173 assert(method->is_native() && !method->is_abstract(), "should be"); | |
174 | |
175 JavaThread *thread = (JavaThread *) THREAD; | |
176 ZeroStack *stack = thread->zero_stack(); | |
177 | |
178 // Allocate and initialize our frame | |
1514 | 179 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 180 thread->push_zero_frame(frame); |
181 interpreterState istate = frame->interpreter_state(); | |
182 intptr_t *locals = istate->locals(); | |
183 | |
1078 | 184 // Update the invocation counter |
185 if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { | |
186 InvocationCounter *counter = method->invocation_counter(); | |
187 counter->increment(); | |
188 if (counter->reached_InvocationLimit()) { | |
189 CALL_VM_NOCHECK( | |
190 InterpreterRuntime::frequency_counter_overflow(thread, NULL)); | |
191 if (HAS_PENDING_EXCEPTION) | |
192 goto unwind_and_return; | |
193 } | |
194 } | |
195 | |
1010 | 196 // Lock if necessary |
197 BasicObjectLock *monitor; | |
198 monitor = NULL; | |
199 if (method->is_synchronized()) { | |
200 monitor = (BasicObjectLock*) istate->stack_base(); | |
201 oop lockee = monitor->obj(); | |
202 markOop disp = lockee->mark()->set_unlocked(); | |
203 | |
204 monitor->lock()->set_displaced_header(disp); | |
205 if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { | |
206 if (thread->is_lock_owned((address) disp->clear_lock_bits())) { | |
207 monitor->lock()->set_displaced_header(NULL); | |
208 } | |
209 else { | |
210 CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); | |
211 if (HAS_PENDING_EXCEPTION) | |
212 goto unwind_and_return; | |
213 } | |
214 } | |
215 } | |
216 | |
217 // Get the signature handler | |
218 InterpreterRuntime::SignatureHandler *handler; { | |
219 address handlerAddr = method->signature_handler(); | |
220 if (handlerAddr == NULL) { | |
221 CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); | |
222 if (HAS_PENDING_EXCEPTION) | |
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223 goto unlock_unwind_and_return; |
1010 | 224 |
225 handlerAddr = method->signature_handler(); | |
226 assert(handlerAddr != NULL, "eh?"); | |
227 } | |
228 if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { | |
229 CALL_VM_NOCHECK(handlerAddr = | |
230 InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); | |
231 if (HAS_PENDING_EXCEPTION) | |
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232 goto unlock_unwind_and_return; |
1010 | 233 } |
234 handler = \ | |
235 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
236 } | |
237 | |
238 // Get the native function entry point | |
239 address function; | |
240 function = method->native_function(); | |
241 assert(function != NULL, "should be set if signature handler is"); | |
242 | |
243 // Build the argument list | |
1379 | 244 stack->overflow_check(handler->argument_count() * 2, THREAD); |
245 if (HAS_PENDING_EXCEPTION) | |
246 goto unlock_unwind_and_return; | |
247 | |
1010 | 248 void **arguments; |
249 void *mirror; { | |
250 arguments = | |
251 (void **) stack->alloc(handler->argument_count() * sizeof(void **)); | |
252 void **dst = arguments; | |
253 | |
254 void *env = thread->jni_environment(); | |
255 *(dst++) = &env; | |
256 | |
257 if (method->is_static()) { | |
258 istate->set_oop_temp( | |
259 method->constants()->pool_holder()->klass_part()->java_mirror()); | |
260 mirror = istate->oop_temp_addr(); | |
261 *(dst++) = &mirror; | |
262 } | |
263 | |
264 intptr_t *src = locals; | |
265 for (int i = dst - arguments; i < handler->argument_count(); i++) { | |
266 ffi_type *type = handler->argument_type(i); | |
267 if (type == &ffi_type_pointer) { | |
268 if (*src) { | |
269 stack->push((intptr_t) src); | |
270 *(dst++) = stack->sp(); | |
271 } | |
272 else { | |
273 *(dst++) = src; | |
274 } | |
275 src--; | |
276 } | |
277 else if (type->size == 4) { | |
278 *(dst++) = src--; | |
279 } | |
280 else if (type->size == 8) { | |
281 src--; | |
282 *(dst++) = src--; | |
283 } | |
284 else { | |
285 ShouldNotReachHere(); | |
286 } | |
287 } | |
288 } | |
289 | |
290 // Set up the Java frame anchor | |
291 thread->set_last_Java_frame(); | |
292 | |
293 // Change the thread state to _thread_in_native | |
294 ThreadStateTransition::transition_from_java(thread, _thread_in_native); | |
295 | |
296 // Make the call | |
297 intptr_t result[4 - LogBytesPerWord]; | |
298 ffi_call(handler->cif(), (void (*)()) function, result, arguments); | |
299 | |
300 // Change the thread state back to _thread_in_Java. | |
301 // ThreadStateTransition::transition_from_native() cannot be used | |
302 // here because it does not check for asynchronous exceptions. | |
303 // We have to manage the transition ourself. | |
304 thread->set_thread_state(_thread_in_native_trans); | |
305 | |
306 // Make sure new state is visible in the GC thread | |
307 if (os::is_MP()) { | |
308 if (UseMembar) { | |
309 OrderAccess::fence(); | |
310 } | |
311 else { | |
312 InterfaceSupport::serialize_memory(thread); | |
313 } | |
314 } | |
315 | |
316 // Handle safepoint operations, pending suspend requests, | |
317 // and pending asynchronous exceptions. | |
318 if (SafepointSynchronize::do_call_back() || | |
319 thread->has_special_condition_for_native_trans()) { | |
320 JavaThread::check_special_condition_for_native_trans(thread); | |
321 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); | |
322 } | |
323 | |
324 // Finally we can change the thread state to _thread_in_Java. | |
325 thread->set_thread_state(_thread_in_Java); | |
326 fixup_after_potential_safepoint(); | |
327 | |
328 // Clear the frame anchor | |
329 thread->reset_last_Java_frame(); | |
330 | |
331 // If the result was an oop then unbox it and store it in | |
332 // oop_temp where the garbage collector can see it before | |
333 // we release the handle it might be protected by. | |
334 if (handler->result_type() == &ffi_type_pointer) { | |
335 if (result[0]) | |
336 istate->set_oop_temp(*(oop *) result[0]); | |
337 else | |
338 istate->set_oop_temp(NULL); | |
339 } | |
340 | |
341 // Reset handle block | |
342 thread->active_handles()->clear(); | |
343 | |
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344 unlock_unwind_and_return: |
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345 |
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346 // Unlock if necessary |
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347 if (monitor) { |
1010 | 348 BasicLock *lock = monitor->lock(); |
349 markOop header = lock->displaced_header(); | |
350 oop rcvr = monitor->obj(); | |
351 monitor->set_obj(NULL); | |
352 | |
353 if (header != NULL) { | |
354 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { | |
355 monitor->set_obj(rcvr); { | |
356 HandleMark hm(thread); | |
357 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); | |
358 } | |
359 } | |
360 } | |
361 } | |
362 | |
363 unwind_and_return: | |
364 | |
365 // Unwind the current activation | |
366 thread->pop_zero_frame(); | |
367 | |
368 // Pop our parameters | |
369 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
370 | |
371 // Push our result | |
372 if (!HAS_PENDING_EXCEPTION) { | |
1256 | 373 BasicType type = result_type_of(method); |
374 stack->set_sp(stack->sp() - type2size[type]); | |
1010 | 375 |
1256 | 376 switch (type) { |
1010 | 377 case T_VOID: |
378 break; | |
379 | |
380 case T_BOOLEAN: | |
381 #ifndef VM_LITTLE_ENDIAN | |
382 result[0] <<= (BitsPerWord - BitsPerByte); | |
383 #endif | |
384 SET_LOCALS_INT(*(jboolean *) result != 0, 0); | |
385 break; | |
386 | |
387 case T_CHAR: | |
388 #ifndef VM_LITTLE_ENDIAN | |
389 result[0] <<= (BitsPerWord - BitsPerShort); | |
390 #endif | |
391 SET_LOCALS_INT(*(jchar *) result, 0); | |
392 break; | |
393 | |
394 case T_BYTE: | |
395 #ifndef VM_LITTLE_ENDIAN | |
396 result[0] <<= (BitsPerWord - BitsPerByte); | |
397 #endif | |
398 SET_LOCALS_INT(*(jbyte *) result, 0); | |
399 break; | |
400 | |
401 case T_SHORT: | |
402 #ifndef VM_LITTLE_ENDIAN | |
403 result[0] <<= (BitsPerWord - BitsPerShort); | |
404 #endif | |
405 SET_LOCALS_INT(*(jshort *) result, 0); | |
406 break; | |
407 | |
408 case T_INT: | |
409 #ifndef VM_LITTLE_ENDIAN | |
410 result[0] <<= (BitsPerWord - BitsPerInt); | |
411 #endif | |
412 SET_LOCALS_INT(*(jint *) result, 0); | |
413 break; | |
414 | |
415 case T_LONG: | |
416 SET_LOCALS_LONG(*(jlong *) result, 0); | |
417 break; | |
418 | |
419 case T_FLOAT: | |
420 SET_LOCALS_FLOAT(*(jfloat *) result, 0); | |
421 break; | |
422 | |
423 case T_DOUBLE: | |
424 SET_LOCALS_DOUBLE(*(jdouble *) result, 0); | |
425 break; | |
426 | |
427 case T_OBJECT: | |
428 case T_ARRAY: | |
429 SET_LOCALS_OBJECT(istate->oop_temp(), 0); | |
430 break; | |
431 | |
432 default: | |
433 ShouldNotReachHere(); | |
434 } | |
435 } | |
1514 | 436 |
437 // No deoptimized frames on the stack | |
438 return 0; | |
1010 | 439 } |
440 | |
1514 | 441 int CppInterpreter::accessor_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 442 JavaThread *thread = (JavaThread *) THREAD; |
443 ZeroStack *stack = thread->zero_stack(); | |
444 intptr_t *locals = stack->sp(); | |
445 | |
446 // Drop into the slow path if we need a safepoint check | |
447 if (SafepointSynchronize::do_call_back()) { | |
1514 | 448 return normal_entry(method, 0, THREAD); |
1010 | 449 } |
450 | |
451 // Load the object pointer and drop into the slow path | |
452 // if we have a NullPointerException | |
453 oop object = LOCALS_OBJECT(0); | |
454 if (object == NULL) { | |
1514 | 455 return normal_entry(method, 0, THREAD); |
1010 | 456 } |
457 | |
458 // Read the field index from the bytecode, which looks like this: | |
459 // 0: aload_0 | |
460 // 1: getfield | |
461 // 2: index | |
462 // 3: index | |
463 // 4: ireturn/areturn | |
464 // NB this is not raw bytecode: index is in machine order | |
465 u1 *code = method->code_base(); | |
466 assert(code[0] == Bytecodes::_aload_0 && | |
467 code[1] == Bytecodes::_getfield && | |
468 (code[4] == Bytecodes::_ireturn || | |
469 code[4] == Bytecodes::_areturn), "should do"); | |
470 u2 index = Bytes::get_native_u2(&code[2]); | |
471 | |
472 // Get the entry from the constant pool cache, and drop into | |
473 // the slow path if it has not been resolved | |
474 constantPoolCacheOop cache = method->constants()->cache(); | |
475 ConstantPoolCacheEntry* entry = cache->entry_at(index); | |
476 if (!entry->is_resolved(Bytecodes::_getfield)) { | |
1514 | 477 return normal_entry(method, 0, THREAD); |
1010 | 478 } |
479 | |
480 // Get the result and push it onto the stack | |
481 switch (entry->flag_state()) { | |
482 case ltos: | |
483 case dtos: | |
1514 | 484 stack->overflow_check(1, CHECK_0); |
1010 | 485 stack->alloc(wordSize); |
486 break; | |
487 } | |
488 if (entry->is_volatile()) { | |
489 switch (entry->flag_state()) { | |
490 case ctos: | |
491 SET_LOCALS_INT(object->char_field_acquire(entry->f2()), 0); | |
492 break; | |
493 | |
494 case btos: | |
495 SET_LOCALS_INT(object->byte_field_acquire(entry->f2()), 0); | |
496 break; | |
497 | |
498 case stos: | |
499 SET_LOCALS_INT(object->short_field_acquire(entry->f2()), 0); | |
500 break; | |
501 | |
502 case itos: | |
503 SET_LOCALS_INT(object->int_field_acquire(entry->f2()), 0); | |
504 break; | |
505 | |
506 case ltos: | |
507 SET_LOCALS_LONG(object->long_field_acquire(entry->f2()), 0); | |
508 break; | |
509 | |
510 case ftos: | |
511 SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2()), 0); | |
512 break; | |
513 | |
514 case dtos: | |
515 SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2()), 0); | |
516 break; | |
517 | |
518 case atos: | |
519 SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2()), 0); | |
520 break; | |
521 | |
522 default: | |
523 ShouldNotReachHere(); | |
524 } | |
525 } | |
526 else { | |
527 switch (entry->flag_state()) { | |
528 case ctos: | |
529 SET_LOCALS_INT(object->char_field(entry->f2()), 0); | |
530 break; | |
531 | |
532 case btos: | |
533 SET_LOCALS_INT(object->byte_field(entry->f2()), 0); | |
534 break; | |
535 | |
536 case stos: | |
537 SET_LOCALS_INT(object->short_field(entry->f2()), 0); | |
538 break; | |
539 | |
540 case itos: | |
541 SET_LOCALS_INT(object->int_field(entry->f2()), 0); | |
542 break; | |
543 | |
544 case ltos: | |
545 SET_LOCALS_LONG(object->long_field(entry->f2()), 0); | |
546 break; | |
547 | |
548 case ftos: | |
549 SET_LOCALS_FLOAT(object->float_field(entry->f2()), 0); | |
550 break; | |
551 | |
552 case dtos: | |
553 SET_LOCALS_DOUBLE(object->double_field(entry->f2()), 0); | |
554 break; | |
555 | |
556 case atos: | |
557 SET_LOCALS_OBJECT(object->obj_field(entry->f2()), 0); | |
558 break; | |
559 | |
560 default: | |
561 ShouldNotReachHere(); | |
562 } | |
563 } | |
1514 | 564 |
565 // No deoptimized frames on the stack | |
566 return 0; | |
1010 | 567 } |
568 | |
1514 | 569 int CppInterpreter::empty_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 570 JavaThread *thread = (JavaThread *) THREAD; |
571 ZeroStack *stack = thread->zero_stack(); | |
572 | |
573 // Drop into the slow path if we need a safepoint check | |
574 if (SafepointSynchronize::do_call_back()) { | |
1514 | 575 return normal_entry(method, 0, THREAD); |
1010 | 576 } |
577 | |
578 // Pop our parameters | |
579 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
1514 | 580 |
581 // No deoptimized frames on the stack | |
582 return 0; | |
1010 | 583 } |
584 | |
1379 | 585 InterpreterFrame *InterpreterFrame::build(const methodOop method, TRAPS) { |
586 JavaThread *thread = (JavaThread *) THREAD; | |
587 ZeroStack *stack = thread->zero_stack(); | |
588 | |
589 // Calculate the size of the frame we'll build, including | |
590 // any adjustments to the caller's frame that we'll make. | |
591 int extra_locals = 0; | |
592 int monitor_words = 0; | |
593 int stack_words = 0; | |
1010 | 594 |
1379 | 595 if (!method->is_native()) { |
596 extra_locals = method->max_locals() - method->size_of_parameters(); | |
597 stack_words = method->max_stack(); | |
1010 | 598 } |
1379 | 599 if (method->is_synchronized()) { |
600 monitor_words = frame::interpreter_frame_monitor_size(); | |
601 } | |
602 stack->overflow_check( | |
603 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
1010 | 604 |
1379 | 605 // Adjust the caller's stack frame to accomodate any additional |
606 // local variables we have contiguously with our parameters. | |
607 for (int i = 0; i < extra_locals; i++) | |
608 stack->push(0); | |
1010 | 609 |
610 intptr_t *locals; | |
611 if (method->is_native()) | |
612 locals = stack->sp() + (method->size_of_parameters() - 1); | |
613 else | |
614 locals = stack->sp() + (method->max_locals() - 1); | |
615 | |
616 stack->push(0); // next_frame, filled in later | |
617 intptr_t *fp = stack->sp(); | |
618 assert(fp - stack->sp() == next_frame_off, "should be"); | |
619 | |
620 stack->push(INTERPRETER_FRAME); | |
621 assert(fp - stack->sp() == frame_type_off, "should be"); | |
622 | |
623 interpreterState istate = | |
624 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
625 assert(fp - stack->sp() == istate_off, "should be"); | |
626 | |
627 istate->set_locals(locals); | |
628 istate->set_method(method); | |
629 istate->set_self_link(istate); | |
630 istate->set_prev_link(NULL); | |
631 istate->set_thread(thread); | |
632 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
633 istate->set_constants(method->constants()->cache()); | |
634 istate->set_msg(BytecodeInterpreter::method_entry); | |
635 istate->set_oop_temp(NULL); | |
636 istate->set_mdx(NULL); | |
637 istate->set_callee(NULL); | |
638 | |
639 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
640 if (method->is_synchronized()) { | |
641 BasicObjectLock *monitor = | |
642 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
643 oop object; | |
644 if (method->is_static()) | |
645 object = method->constants()->pool_holder()->klass_part()->java_mirror(); | |
646 else | |
647 object = (oop) locals[0]; | |
648 monitor->set_obj(object); | |
649 } | |
650 | |
651 istate->set_stack_base(stack->sp()); | |
652 istate->set_stack(stack->sp() - 1); | |
653 if (stack_words) | |
654 stack->alloc(stack_words * wordSize); | |
655 istate->set_stack_limit(stack->sp() - 1); | |
656 | |
657 return (InterpreterFrame *) fp; | |
658 } | |
659 | |
660 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
661 int i = 0; | |
662 switch (type) { | |
663 case T_BOOLEAN: i = 0; break; | |
664 case T_CHAR : i = 1; break; | |
665 case T_BYTE : i = 2; break; | |
666 case T_SHORT : i = 3; break; | |
667 case T_INT : i = 4; break; | |
668 case T_LONG : i = 5; break; | |
669 case T_VOID : i = 6; break; | |
670 case T_FLOAT : i = 7; break; | |
671 case T_DOUBLE : i = 8; break; | |
672 case T_OBJECT : i = 9; break; | |
673 case T_ARRAY : i = 9; break; | |
674 default : ShouldNotReachHere(); | |
675 } | |
676 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
677 "index out of bounds"); | |
678 return i; | |
679 } | |
680 | |
1256 | 681 BasicType CppInterpreter::result_type_of(methodOop method) { |
682 BasicType t; | |
683 switch (method->result_index()) { | |
684 case 0 : t = T_BOOLEAN; break; | |
685 case 1 : t = T_CHAR; break; | |
686 case 2 : t = T_BYTE; break; | |
687 case 3 : t = T_SHORT; break; | |
688 case 4 : t = T_INT; break; | |
689 case 5 : t = T_LONG; break; | |
690 case 6 : t = T_VOID; break; | |
691 case 7 : t = T_FLOAT; break; | |
692 case 8 : t = T_DOUBLE; break; | |
693 case 9 : t = T_OBJECT; break; | |
694 default: ShouldNotReachHere(); | |
695 } | |
696 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
697 "out of step with AbstractInterpreter::BasicType_as_index"); | |
698 return t; | |
699 } | |
700 | |
1010 | 701 address InterpreterGenerator::generate_empty_entry() { |
702 if (!UseFastEmptyMethods) | |
703 return NULL; | |
704 | |
705 return generate_entry((address) CppInterpreter::empty_entry); | |
706 } | |
707 | |
708 address InterpreterGenerator::generate_accessor_entry() { | |
709 if (!UseFastAccessorMethods) | |
710 return NULL; | |
711 | |
712 return generate_entry((address) CppInterpreter::accessor_entry); | |
713 } | |
714 | |
715 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
716 assert(synchronized == false, "should be"); | |
717 | |
718 return generate_entry((address) CppInterpreter::native_entry); | |
719 } | |
720 | |
721 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
722 assert(synchronized == false, "should be"); | |
723 | |
724 return generate_entry((address) CppInterpreter::normal_entry); | |
725 } | |
726 | |
727 address AbstractInterpreterGenerator::generate_method_entry( | |
728 AbstractInterpreter::MethodKind kind) { | |
729 address entry_point = NULL; | |
730 | |
731 switch (kind) { | |
732 case Interpreter::zerolocals: | |
733 case Interpreter::zerolocals_synchronized: | |
734 break; | |
735 | |
736 case Interpreter::native: | |
737 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
738 break; | |
739 | |
740 case Interpreter::native_synchronized: | |
741 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
742 break; | |
743 | |
744 case Interpreter::empty: | |
745 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
746 break; | |
747 | |
748 case Interpreter::accessor: | |
749 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
750 break; | |
751 | |
752 case Interpreter::abstract: | |
753 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
754 break; | |
755 | |
756 case Interpreter::method_handle: | |
757 entry_point = ((InterpreterGenerator*) this)->generate_method_handle_entry(); | |
758 break; | |
759 | |
760 case Interpreter::java_lang_math_sin: | |
761 case Interpreter::java_lang_math_cos: | |
762 case Interpreter::java_lang_math_tan: | |
763 case Interpreter::java_lang_math_abs: | |
764 case Interpreter::java_lang_math_log: | |
765 case Interpreter::java_lang_math_log10: | |
766 case Interpreter::java_lang_math_sqrt: | |
767 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); | |
768 break; | |
769 | |
770 default: | |
771 ShouldNotReachHere(); | |
772 } | |
773 | |
774 if (entry_point == NULL) | |
775 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
776 | |
777 return entry_point; | |
778 } | |
779 | |
780 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
781 : CppInterpreterGenerator(code) { | |
782 generate_all(); | |
783 } | |
784 | |
785 // Deoptimization helpers | |
786 | |
1379 | 787 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
788 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
789 | |
1010 | 790 int size_in_words = size >> LogBytesPerWord; |
791 assert(size_in_words * wordSize == size, "unaligned"); | |
792 assert(size_in_words >= header_words, "too small"); | |
1379 | 793 stack->overflow_check(size_in_words, CHECK_NULL); |
1010 | 794 |
795 stack->push(0); // next_frame, filled in later | |
796 intptr_t *fp = stack->sp(); | |
797 assert(fp - stack->sp() == next_frame_off, "should be"); | |
798 | |
799 stack->push(INTERPRETER_FRAME); | |
800 assert(fp - stack->sp() == frame_type_off, "should be"); | |
801 | |
802 interpreterState istate = | |
803 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
804 assert(fp - stack->sp() == istate_off, "should be"); | |
805 istate->set_self_link(NULL); // mark invalid | |
806 | |
807 stack->alloc((size_in_words - header_words) * wordSize); | |
808 | |
809 return (InterpreterFrame *) fp; | |
810 } | |
811 | |
812 int AbstractInterpreter::layout_activation(methodOop method, | |
813 int tempcount, | |
814 int popframe_extra_args, | |
815 int moncount, | |
816 int callee_param_count, | |
817 int callee_locals, | |
818 frame* caller, | |
819 frame* interpreter_frame, | |
820 bool is_top_frame) { | |
821 assert(popframe_extra_args == 0, "what to do?"); | |
822 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
1605 | 823 "top frame should have no caller"); |
1010 | 824 |
825 // This code must exactly match what InterpreterFrame::build | |
826 // does (the full InterpreterFrame::build, that is, not the | |
827 // one that creates empty frames for the deoptimizer). | |
828 // | |
829 // If interpreter_frame is not NULL then it will be filled in. | |
830 // It's size is determined by a previous call to this method, | |
831 // so it should be correct. | |
832 // | |
833 // Note that tempcount is the current size of the expression | |
834 // stack. For top most frames we will allocate a full sized | |
835 // expression stack and not the trimmed version that non-top | |
836 // frames have. | |
837 | |
838 int header_words = InterpreterFrame::header_words; | |
839 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
840 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
841 int callee_extra_locals = callee_locals - callee_param_count; | |
842 | |
843 if (interpreter_frame) { | |
1505 | 844 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
1010 | 845 interpreterState istate = interpreter_frame->get_interpreterState(); |
846 intptr_t *monitor_base = (intptr_t*) istate; | |
847 intptr_t *stack_base = monitor_base - monitor_words; | |
848 intptr_t *stack = stack_base - tempcount - 1; | |
849 | |
850 BytecodeInterpreter::layout_interpreterState(istate, | |
851 caller, | |
852 NULL, | |
853 method, | |
854 locals, | |
855 stack, | |
856 stack_base, | |
857 monitor_base, | |
858 NULL, | |
859 is_top_frame); | |
860 } | |
861 return header_words + monitor_words + stack_words + callee_extra_locals; | |
862 } | |
863 | |
864 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
865 frame* caller, | |
866 frame* current, | |
867 methodOop method, | |
868 intptr_t* locals, | |
869 intptr_t* stack, | |
870 intptr_t* stack_base, | |
871 intptr_t* monitor_base, | |
872 intptr_t* frame_bottom, | |
873 bool is_top_frame) { | |
874 istate->set_locals(locals); | |
875 istate->set_method(method); | |
876 istate->set_self_link(istate); | |
877 istate->set_prev_link(NULL); | |
878 // thread will be set by a hacky repurposing of frame::patch_pc() | |
879 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
880 istate->set_constants(method->constants()->cache()); | |
881 istate->set_msg(BytecodeInterpreter::method_resume); | |
882 istate->set_bcp_advance(0); | |
883 istate->set_oop_temp(NULL); | |
884 istate->set_mdx(NULL); | |
885 if (caller->is_interpreted_frame()) { | |
886 interpreterState prev = caller->get_interpreterState(); | |
887 prev->set_callee(method); | |
888 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
889 prev->set_bcp_advance(5); | |
890 else | |
891 prev->set_bcp_advance(3); | |
892 } | |
893 istate->set_callee(NULL); | |
894 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
895 istate->set_stack_base(stack_base); | |
896 istate->set_stack(stack); | |
897 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
898 } | |
899 | |
900 address CppInterpreter::return_entry(TosState state, int length) { | |
901 ShouldNotCallThis(); | |
902 } | |
903 | |
904 address CppInterpreter::deopt_entry(TosState state, int length) { | |
905 return NULL; | |
906 } | |
907 | |
908 // Helper for (runtime) stack overflow checks | |
909 | |
910 int AbstractInterpreter::size_top_interpreter_activation(methodOop method) { | |
911 return 0; | |
912 } | |
913 | |
914 // Helper for figuring out if frames are interpreter frames | |
915 | |
916 bool CppInterpreter::contains(address pc) { | |
917 #ifdef PRODUCT | |
918 ShouldNotCallThis(); | |
919 #else | |
920 return false; // make frame::print_value_on work | |
921 #endif // !PRODUCT | |
922 } | |
923 | |
924 // Result handlers and convertors | |
925 | |
926 address CppInterpreterGenerator::generate_result_handler_for( | |
927 BasicType type) { | |
928 assembler()->advance(1); | |
929 return ShouldNotCallThisStub(); | |
930 } | |
931 | |
932 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
933 BasicType type) { | |
934 assembler()->advance(1); | |
935 return ShouldNotCallThisStub(); | |
936 } | |
937 | |
938 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
939 BasicType type) { | |
940 assembler()->advance(1); | |
941 return ShouldNotCallThisStub(); | |
942 } | |
943 | |
944 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
945 BasicType type) { | |
946 assembler()->advance(1); | |
947 return ShouldNotCallThisStub(); | |
948 } | |
949 | |
950 #endif // CC_INTERP |