Mercurial > hg > truffle
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 4614:a3882fd1ae61
Make it possible to have multiple LoopEnds per LoopBegin
Factor out the 2 versions of KillCFG (GraphUitl/Canonicalizer)
Remove unused loop detection code from FloatingReadPhase
Made InvokeNode's toString/getDebugProperties more robust
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Thu, 16 Feb 2012 11:57:38 +0100 |
parents | 38fa55e5e792 |
children | 7f410b6ea66c |
rev | line source |
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1010 | 1 /* |
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2 * Copyright (c) 2003, 2011, 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" | |
34 #include "oops/methodDataOop.hpp" | |
35 #include "oops/methodOop.hpp" | |
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" | |
50 #ifdef SHARK | |
51 #include "shark/shark_globals.hpp" | |
52 #endif | |
1010 | 53 |
54 #ifdef CC_INTERP | |
55 | |
56 #define fixup_after_potential_safepoint() \ | |
57 method = istate->method() | |
58 | |
2480 | 59 #define CALL_VM_NOCHECK_NOFIX(func) \ |
1010 | 60 thread->set_last_Java_frame(); \ |
61 func; \ | |
2480 | 62 thread->reset_last_Java_frame(); |
63 | |
64 #define CALL_VM_NOCHECK(func) \ | |
65 CALL_VM_NOCHECK_NOFIX(func) \ | |
1010 | 66 fixup_after_potential_safepoint() |
67 | |
1514 | 68 int CppInterpreter::normal_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 69 JavaThread *thread = (JavaThread *) THREAD; |
70 | |
71 // Allocate and initialize our frame. | |
1514 | 72 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 73 thread->push_zero_frame(frame); |
74 | |
75 // Execute those bytecodes! | |
76 main_loop(0, THREAD); | |
1514 | 77 |
78 // No deoptimized frames on the stack | |
79 return 0; | |
1010 | 80 } |
81 | |
82 void CppInterpreter::main_loop(int recurse, TRAPS) { | |
83 JavaThread *thread = (JavaThread *) THREAD; | |
84 ZeroStack *stack = thread->zero_stack(); | |
85 | |
86 // If we are entering from a deopt we may need to call | |
87 // ourself a few times in order to get to our frame. | |
88 if (recurse) | |
89 main_loop(recurse - 1, THREAD); | |
90 | |
91 InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); | |
92 interpreterState istate = frame->interpreter_state(); | |
93 methodOop method = istate->method(); | |
94 | |
95 intptr_t *result = NULL; | |
96 int result_slots = 0; | |
97 | |
98 while (true) { | |
99 // We can set up the frame anchor with everything we want at | |
100 // this point as we are thread_in_Java and no safepoints can | |
101 // occur until we go to vm mode. We do have to clear flags | |
102 // on return from vm but that is it. | |
103 thread->set_last_Java_frame(); | |
104 | |
105 // Call the interpreter | |
106 if (JvmtiExport::can_post_interpreter_events()) | |
107 BytecodeInterpreter::runWithChecks(istate); | |
108 else | |
109 BytecodeInterpreter::run(istate); | |
110 fixup_after_potential_safepoint(); | |
111 | |
112 // Clear the frame anchor | |
113 thread->reset_last_Java_frame(); | |
114 | |
115 // Examine the message from the interpreter to decide what to do | |
116 if (istate->msg() == BytecodeInterpreter::call_method) { | |
117 methodOop callee = istate->callee(); | |
118 | |
119 // Trim back the stack to put the parameters at the top | |
120 stack->set_sp(istate->stack() + 1); | |
121 | |
122 // Make the call | |
123 Interpreter::invoke_method(callee, istate->callee_entry_point(), THREAD); | |
124 fixup_after_potential_safepoint(); | |
125 | |
126 // Convert the result | |
127 istate->set_stack(stack->sp() - 1); | |
128 | |
129 // Restore the stack | |
130 stack->set_sp(istate->stack_limit() + 1); | |
131 | |
132 // Resume the interpreter | |
133 istate->set_msg(BytecodeInterpreter::method_resume); | |
134 } | |
135 else if (istate->msg() == BytecodeInterpreter::more_monitors) { | |
136 int monitor_words = frame::interpreter_frame_monitor_size(); | |
137 | |
138 // Allocate the space | |
1379 | 139 stack->overflow_check(monitor_words, THREAD); |
140 if (HAS_PENDING_EXCEPTION) | |
141 break; | |
1010 | 142 stack->alloc(monitor_words * wordSize); |
143 | |
144 // Move the expression stack contents | |
145 for (intptr_t *p = istate->stack() + 1; p < istate->stack_base(); p++) | |
146 *(p - monitor_words) = *p; | |
147 | |
148 // Move the expression stack pointers | |
149 istate->set_stack_limit(istate->stack_limit() - monitor_words); | |
150 istate->set_stack(istate->stack() - monitor_words); | |
151 istate->set_stack_base(istate->stack_base() - monitor_words); | |
152 | |
153 // Zero the new monitor so the interpreter can find it. | |
154 ((BasicObjectLock *) istate->stack_base())->set_obj(NULL); | |
155 | |
156 // Resume the interpreter | |
157 istate->set_msg(BytecodeInterpreter::got_monitors); | |
158 } | |
159 else if (istate->msg() == BytecodeInterpreter::return_from_method) { | |
160 // Copy the result into the caller's frame | |
1256 | 161 result_slots = type2size[result_type_of(method)]; |
1010 | 162 assert(result_slots >= 0 && result_slots <= 2, "what?"); |
163 result = istate->stack() + result_slots; | |
164 break; | |
165 } | |
166 else if (istate->msg() == BytecodeInterpreter::throwing_exception) { | |
167 assert(HAS_PENDING_EXCEPTION, "should do"); | |
168 break; | |
169 } | |
170 else if (istate->msg() == BytecodeInterpreter::do_osr) { | |
171 // Unwind the current frame | |
172 thread->pop_zero_frame(); | |
173 | |
174 // Remove any extension of the previous frame | |
175 int extra_locals = method->max_locals() - method->size_of_parameters(); | |
176 stack->set_sp(stack->sp() + extra_locals); | |
177 | |
178 // Jump into the OSR method | |
179 Interpreter::invoke_osr( | |
180 method, istate->osr_entry(), istate->osr_buf(), THREAD); | |
181 return; | |
182 } | |
2480 | 183 else if (istate->msg() == BytecodeInterpreter::call_method_handle) { |
184 oop method_handle = istate->callee(); | |
185 | |
186 // Trim back the stack to put the parameters at the top | |
187 stack->set_sp(istate->stack() + 1); | |
188 | |
189 // Make the call | |
190 process_method_handle(method_handle, THREAD); | |
191 fixup_after_potential_safepoint(); | |
192 | |
193 // Convert the result | |
194 istate->set_stack(stack->sp() - 1); | |
195 | |
196 // Restore the stack | |
197 stack->set_sp(istate->stack_limit() + 1); | |
198 | |
199 // Resume the interpreter | |
200 istate->set_msg(BytecodeInterpreter::method_resume); | |
201 } | |
1010 | 202 else { |
203 ShouldNotReachHere(); | |
204 } | |
205 } | |
206 | |
207 // Unwind the current frame | |
208 thread->pop_zero_frame(); | |
209 | |
210 // Pop our local variables | |
211 stack->set_sp(stack->sp() + method->max_locals()); | |
212 | |
213 // Push our result | |
214 for (int i = 0; i < result_slots; i++) | |
215 stack->push(result[-i]); | |
216 } | |
217 | |
1514 | 218 int CppInterpreter::native_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 219 // Make sure method is native and not abstract |
220 assert(method->is_native() && !method->is_abstract(), "should be"); | |
221 | |
222 JavaThread *thread = (JavaThread *) THREAD; | |
223 ZeroStack *stack = thread->zero_stack(); | |
224 | |
225 // Allocate and initialize our frame | |
1514 | 226 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 227 thread->push_zero_frame(frame); |
228 interpreterState istate = frame->interpreter_state(); | |
229 intptr_t *locals = istate->locals(); | |
230 | |
1078 | 231 // Update the invocation counter |
232 if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { | |
233 InvocationCounter *counter = method->invocation_counter(); | |
234 counter->increment(); | |
235 if (counter->reached_InvocationLimit()) { | |
236 CALL_VM_NOCHECK( | |
237 InterpreterRuntime::frequency_counter_overflow(thread, NULL)); | |
238 if (HAS_PENDING_EXCEPTION) | |
239 goto unwind_and_return; | |
240 } | |
241 } | |
242 | |
1010 | 243 // Lock if necessary |
244 BasicObjectLock *monitor; | |
245 monitor = NULL; | |
246 if (method->is_synchronized()) { | |
247 monitor = (BasicObjectLock*) istate->stack_base(); | |
248 oop lockee = monitor->obj(); | |
249 markOop disp = lockee->mark()->set_unlocked(); | |
250 | |
251 monitor->lock()->set_displaced_header(disp); | |
252 if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { | |
253 if (thread->is_lock_owned((address) disp->clear_lock_bits())) { | |
254 monitor->lock()->set_displaced_header(NULL); | |
255 } | |
256 else { | |
257 CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); | |
258 if (HAS_PENDING_EXCEPTION) | |
259 goto unwind_and_return; | |
260 } | |
261 } | |
262 } | |
263 | |
264 // Get the signature handler | |
265 InterpreterRuntime::SignatureHandler *handler; { | |
266 address handlerAddr = method->signature_handler(); | |
267 if (handlerAddr == NULL) { | |
268 CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); | |
269 if (HAS_PENDING_EXCEPTION) | |
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270 goto unlock_unwind_and_return; |
1010 | 271 |
272 handlerAddr = method->signature_handler(); | |
273 assert(handlerAddr != NULL, "eh?"); | |
274 } | |
275 if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { | |
276 CALL_VM_NOCHECK(handlerAddr = | |
277 InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); | |
278 if (HAS_PENDING_EXCEPTION) | |
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279 goto unlock_unwind_and_return; |
1010 | 280 } |
281 handler = \ | |
282 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
283 } | |
284 | |
285 // Get the native function entry point | |
286 address function; | |
287 function = method->native_function(); | |
288 assert(function != NULL, "should be set if signature handler is"); | |
289 | |
290 // Build the argument list | |
1379 | 291 stack->overflow_check(handler->argument_count() * 2, THREAD); |
292 if (HAS_PENDING_EXCEPTION) | |
293 goto unlock_unwind_and_return; | |
294 | |
1010 | 295 void **arguments; |
296 void *mirror; { | |
297 arguments = | |
298 (void **) stack->alloc(handler->argument_count() * sizeof(void **)); | |
299 void **dst = arguments; | |
300 | |
301 void *env = thread->jni_environment(); | |
302 *(dst++) = &env; | |
303 | |
304 if (method->is_static()) { | |
305 istate->set_oop_temp( | |
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306 method->constants()->pool_holder()->java_mirror()); |
1010 | 307 mirror = istate->oop_temp_addr(); |
308 *(dst++) = &mirror; | |
309 } | |
310 | |
311 intptr_t *src = locals; | |
312 for (int i = dst - arguments; i < handler->argument_count(); i++) { | |
313 ffi_type *type = handler->argument_type(i); | |
314 if (type == &ffi_type_pointer) { | |
315 if (*src) { | |
316 stack->push((intptr_t) src); | |
317 *(dst++) = stack->sp(); | |
318 } | |
319 else { | |
320 *(dst++) = src; | |
321 } | |
322 src--; | |
323 } | |
324 else if (type->size == 4) { | |
325 *(dst++) = src--; | |
326 } | |
327 else if (type->size == 8) { | |
328 src--; | |
329 *(dst++) = src--; | |
330 } | |
331 else { | |
332 ShouldNotReachHere(); | |
333 } | |
334 } | |
335 } | |
336 | |
337 // Set up the Java frame anchor | |
338 thread->set_last_Java_frame(); | |
339 | |
340 // Change the thread state to _thread_in_native | |
341 ThreadStateTransition::transition_from_java(thread, _thread_in_native); | |
342 | |
343 // Make the call | |
344 intptr_t result[4 - LogBytesPerWord]; | |
345 ffi_call(handler->cif(), (void (*)()) function, result, arguments); | |
346 | |
347 // Change the thread state back to _thread_in_Java. | |
348 // ThreadStateTransition::transition_from_native() cannot be used | |
349 // here because it does not check for asynchronous exceptions. | |
350 // We have to manage the transition ourself. | |
351 thread->set_thread_state(_thread_in_native_trans); | |
352 | |
353 // Make sure new state is visible in the GC thread | |
354 if (os::is_MP()) { | |
355 if (UseMembar) { | |
356 OrderAccess::fence(); | |
357 } | |
358 else { | |
359 InterfaceSupport::serialize_memory(thread); | |
360 } | |
361 } | |
362 | |
363 // Handle safepoint operations, pending suspend requests, | |
364 // and pending asynchronous exceptions. | |
365 if (SafepointSynchronize::do_call_back() || | |
366 thread->has_special_condition_for_native_trans()) { | |
367 JavaThread::check_special_condition_for_native_trans(thread); | |
368 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); | |
369 } | |
370 | |
371 // Finally we can change the thread state to _thread_in_Java. | |
372 thread->set_thread_state(_thread_in_Java); | |
373 fixup_after_potential_safepoint(); | |
374 | |
375 // Clear the frame anchor | |
376 thread->reset_last_Java_frame(); | |
377 | |
378 // If the result was an oop then unbox it and store it in | |
379 // oop_temp where the garbage collector can see it before | |
380 // we release the handle it might be protected by. | |
381 if (handler->result_type() == &ffi_type_pointer) { | |
382 if (result[0]) | |
383 istate->set_oop_temp(*(oop *) result[0]); | |
384 else | |
385 istate->set_oop_temp(NULL); | |
386 } | |
387 | |
388 // Reset handle block | |
389 thread->active_handles()->clear(); | |
390 | |
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391 unlock_unwind_and_return: |
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392 |
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393 // Unlock if necessary |
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394 if (monitor) { |
1010 | 395 BasicLock *lock = monitor->lock(); |
396 markOop header = lock->displaced_header(); | |
397 oop rcvr = monitor->obj(); | |
398 monitor->set_obj(NULL); | |
399 | |
400 if (header != NULL) { | |
401 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { | |
402 monitor->set_obj(rcvr); { | |
403 HandleMark hm(thread); | |
404 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); | |
405 } | |
406 } | |
407 } | |
408 } | |
409 | |
410 unwind_and_return: | |
411 | |
412 // Unwind the current activation | |
413 thread->pop_zero_frame(); | |
414 | |
415 // Pop our parameters | |
416 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
417 | |
418 // Push our result | |
419 if (!HAS_PENDING_EXCEPTION) { | |
1256 | 420 BasicType type = result_type_of(method); |
421 stack->set_sp(stack->sp() - type2size[type]); | |
1010 | 422 |
1256 | 423 switch (type) { |
1010 | 424 case T_VOID: |
425 break; | |
426 | |
427 case T_BOOLEAN: | |
428 #ifndef VM_LITTLE_ENDIAN | |
429 result[0] <<= (BitsPerWord - BitsPerByte); | |
430 #endif | |
431 SET_LOCALS_INT(*(jboolean *) result != 0, 0); | |
432 break; | |
433 | |
434 case T_CHAR: | |
435 #ifndef VM_LITTLE_ENDIAN | |
436 result[0] <<= (BitsPerWord - BitsPerShort); | |
437 #endif | |
438 SET_LOCALS_INT(*(jchar *) result, 0); | |
439 break; | |
440 | |
441 case T_BYTE: | |
442 #ifndef VM_LITTLE_ENDIAN | |
443 result[0] <<= (BitsPerWord - BitsPerByte); | |
444 #endif | |
445 SET_LOCALS_INT(*(jbyte *) result, 0); | |
446 break; | |
447 | |
448 case T_SHORT: | |
449 #ifndef VM_LITTLE_ENDIAN | |
450 result[0] <<= (BitsPerWord - BitsPerShort); | |
451 #endif | |
452 SET_LOCALS_INT(*(jshort *) result, 0); | |
453 break; | |
454 | |
455 case T_INT: | |
456 #ifndef VM_LITTLE_ENDIAN | |
457 result[0] <<= (BitsPerWord - BitsPerInt); | |
458 #endif | |
459 SET_LOCALS_INT(*(jint *) result, 0); | |
460 break; | |
461 | |
462 case T_LONG: | |
463 SET_LOCALS_LONG(*(jlong *) result, 0); | |
464 break; | |
465 | |
466 case T_FLOAT: | |
467 SET_LOCALS_FLOAT(*(jfloat *) result, 0); | |
468 break; | |
469 | |
470 case T_DOUBLE: | |
471 SET_LOCALS_DOUBLE(*(jdouble *) result, 0); | |
472 break; | |
473 | |
474 case T_OBJECT: | |
475 case T_ARRAY: | |
476 SET_LOCALS_OBJECT(istate->oop_temp(), 0); | |
477 break; | |
478 | |
479 default: | |
480 ShouldNotReachHere(); | |
481 } | |
482 } | |
1514 | 483 |
484 // No deoptimized frames on the stack | |
485 return 0; | |
1010 | 486 } |
487 | |
1514 | 488 int CppInterpreter::accessor_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 489 JavaThread *thread = (JavaThread *) THREAD; |
490 ZeroStack *stack = thread->zero_stack(); | |
491 intptr_t *locals = stack->sp(); | |
492 | |
493 // Drop into the slow path if we need a safepoint check | |
494 if (SafepointSynchronize::do_call_back()) { | |
1514 | 495 return normal_entry(method, 0, THREAD); |
1010 | 496 } |
497 | |
498 // Load the object pointer and drop into the slow path | |
499 // if we have a NullPointerException | |
500 oop object = LOCALS_OBJECT(0); | |
501 if (object == NULL) { | |
1514 | 502 return normal_entry(method, 0, THREAD); |
1010 | 503 } |
504 | |
505 // Read the field index from the bytecode, which looks like this: | |
506 // 0: aload_0 | |
507 // 1: getfield | |
508 // 2: index | |
509 // 3: index | |
510 // 4: ireturn/areturn | |
511 // NB this is not raw bytecode: index is in machine order | |
512 u1 *code = method->code_base(); | |
513 assert(code[0] == Bytecodes::_aload_0 && | |
514 code[1] == Bytecodes::_getfield && | |
515 (code[4] == Bytecodes::_ireturn || | |
516 code[4] == Bytecodes::_areturn), "should do"); | |
517 u2 index = Bytes::get_native_u2(&code[2]); | |
518 | |
519 // Get the entry from the constant pool cache, and drop into | |
520 // the slow path if it has not been resolved | |
521 constantPoolCacheOop cache = method->constants()->cache(); | |
522 ConstantPoolCacheEntry* entry = cache->entry_at(index); | |
523 if (!entry->is_resolved(Bytecodes::_getfield)) { | |
1514 | 524 return normal_entry(method, 0, THREAD); |
1010 | 525 } |
526 | |
527 // Get the result and push it onto the stack | |
528 switch (entry->flag_state()) { | |
529 case ltos: | |
530 case dtos: | |
1514 | 531 stack->overflow_check(1, CHECK_0); |
1010 | 532 stack->alloc(wordSize); |
533 break; | |
534 } | |
535 if (entry->is_volatile()) { | |
536 switch (entry->flag_state()) { | |
537 case ctos: | |
538 SET_LOCALS_INT(object->char_field_acquire(entry->f2()), 0); | |
539 break; | |
540 | |
541 case btos: | |
542 SET_LOCALS_INT(object->byte_field_acquire(entry->f2()), 0); | |
543 break; | |
544 | |
545 case stos: | |
546 SET_LOCALS_INT(object->short_field_acquire(entry->f2()), 0); | |
547 break; | |
548 | |
549 case itos: | |
550 SET_LOCALS_INT(object->int_field_acquire(entry->f2()), 0); | |
551 break; | |
552 | |
553 case ltos: | |
554 SET_LOCALS_LONG(object->long_field_acquire(entry->f2()), 0); | |
555 break; | |
556 | |
557 case ftos: | |
558 SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2()), 0); | |
559 break; | |
560 | |
561 case dtos: | |
562 SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2()), 0); | |
563 break; | |
564 | |
565 case atos: | |
566 SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2()), 0); | |
567 break; | |
568 | |
569 default: | |
570 ShouldNotReachHere(); | |
571 } | |
572 } | |
573 else { | |
574 switch (entry->flag_state()) { | |
575 case ctos: | |
576 SET_LOCALS_INT(object->char_field(entry->f2()), 0); | |
577 break; | |
578 | |
579 case btos: | |
580 SET_LOCALS_INT(object->byte_field(entry->f2()), 0); | |
581 break; | |
582 | |
583 case stos: | |
584 SET_LOCALS_INT(object->short_field(entry->f2()), 0); | |
585 break; | |
586 | |
587 case itos: | |
588 SET_LOCALS_INT(object->int_field(entry->f2()), 0); | |
589 break; | |
590 | |
591 case ltos: | |
592 SET_LOCALS_LONG(object->long_field(entry->f2()), 0); | |
593 break; | |
594 | |
595 case ftos: | |
596 SET_LOCALS_FLOAT(object->float_field(entry->f2()), 0); | |
597 break; | |
598 | |
599 case dtos: | |
600 SET_LOCALS_DOUBLE(object->double_field(entry->f2()), 0); | |
601 break; | |
602 | |
603 case atos: | |
604 SET_LOCALS_OBJECT(object->obj_field(entry->f2()), 0); | |
605 break; | |
606 | |
607 default: | |
608 ShouldNotReachHere(); | |
609 } | |
610 } | |
1514 | 611 |
612 // No deoptimized frames on the stack | |
613 return 0; | |
1010 | 614 } |
615 | |
1514 | 616 int CppInterpreter::empty_entry(methodOop method, intptr_t UNUSED, TRAPS) { |
1010 | 617 JavaThread *thread = (JavaThread *) THREAD; |
618 ZeroStack *stack = thread->zero_stack(); | |
619 | |
620 // Drop into the slow path if we need a safepoint check | |
621 if (SafepointSynchronize::do_call_back()) { | |
1514 | 622 return normal_entry(method, 0, THREAD); |
1010 | 623 } |
624 | |
625 // Pop our parameters | |
626 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
1514 | 627 |
628 // No deoptimized frames on the stack | |
629 return 0; | |
1010 | 630 } |
631 | |
2480 | 632 int CppInterpreter::method_handle_entry(methodOop method, |
633 intptr_t UNUSED, TRAPS) { | |
634 JavaThread *thread = (JavaThread *) THREAD; | |
635 ZeroStack *stack = thread->zero_stack(); | |
636 int argument_slots = method->size_of_parameters(); | |
637 int result_slots = type2size[result_type_of(method)]; | |
638 intptr_t *vmslots = stack->sp(); | |
639 intptr_t *unwind_sp = vmslots + argument_slots; | |
640 | |
641 // Find the MethodType | |
642 address p = (address) method; | |
643 for (jint* pc = method->method_type_offsets_chain(); (*pc) != -1; pc++) { | |
644 p = *(address*)(p + (*pc)); | |
645 } | |
646 oop method_type = (oop) p; | |
647 | |
648 // The MethodHandle is in the slot after the arguments | |
649 oop form = java_lang_invoke_MethodType::form(method_type); | |
650 int num_vmslots = java_lang_invoke_MethodTypeForm::vmslots(form); | |
651 assert(argument_slots == num_vmslots + 1, "should be"); | |
652 oop method_handle = VMSLOTS_OBJECT(num_vmslots); | |
653 | |
654 // InvokeGeneric requires some extra shuffling | |
655 oop mhtype = java_lang_invoke_MethodHandle::type(method_handle); | |
656 bool is_exact = mhtype == method_type; | |
657 if (!is_exact) { | |
658 if (method->intrinsic_id() == vmIntrinsics::_invokeExact) { | |
659 CALL_VM_NOCHECK_NOFIX( | |
3451
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660 SharedRuntime::throw_WrongMethodTypeException( |
2480 | 661 thread, method_type, mhtype)); |
662 // NB all oops trashed! | |
663 assert(HAS_PENDING_EXCEPTION, "should do"); | |
664 stack->set_sp(unwind_sp); | |
665 return 0; | |
666 } | |
667 assert(method->intrinsic_id() == vmIntrinsics::_invokeGeneric, "should be"); | |
668 | |
669 // Load up an adapter from the calling type | |
670 // NB the x86 code for this (in methodHandles_x86.cpp, search for | |
671 // "genericInvoker") is really really odd. I'm hoping it's trying | |
672 // to accomodate odd VM/class library combinations I can ignore. | |
673 oop adapter = java_lang_invoke_MethodTypeForm::genericInvoker(form); | |
674 if (adapter == NULL) { | |
675 CALL_VM_NOCHECK_NOFIX( | |
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|
676 SharedRuntime::throw_WrongMethodTypeException( |
2480 | 677 thread, method_type, mhtype)); |
678 // NB all oops trashed! | |
679 assert(HAS_PENDING_EXCEPTION, "should do"); | |
680 stack->set_sp(unwind_sp); | |
681 return 0; | |
682 } | |
683 | |
684 // Adapters are shared among form-families of method-type. The | |
685 // type being called is passed as a trusted first argument so that | |
686 // the adapter knows the actual types of its arguments and return | |
687 // values. | |
688 insert_vmslots(num_vmslots + 1, 1, THREAD); | |
689 if (HAS_PENDING_EXCEPTION) { | |
690 // NB all oops trashed! | |
691 stack->set_sp(unwind_sp); | |
692 return 0; | |
693 } | |
694 | |
695 vmslots = stack->sp(); | |
696 num_vmslots++; | |
697 SET_VMSLOTS_OBJECT(method_type, num_vmslots); | |
698 | |
699 method_handle = adapter; | |
700 } | |
701 | |
702 // Start processing | |
703 process_method_handle(method_handle, THREAD); | |
704 if (HAS_PENDING_EXCEPTION) | |
705 result_slots = 0; | |
706 | |
707 // If this is an invokeExact then the eventual callee will not | |
708 // have unwound the method handle argument so we have to do it. | |
709 // If a result is being returned the it will be above the method | |
710 // handle argument we're unwinding. | |
711 if (is_exact) { | |
712 intptr_t result[2]; | |
713 for (int i = 0; i < result_slots; i++) | |
714 result[i] = stack->pop(); | |
715 stack->pop(); | |
716 for (int i = result_slots - 1; i >= 0; i--) | |
717 stack->push(result[i]); | |
718 } | |
719 | |
720 // Check | |
721 assert(stack->sp() == unwind_sp - result_slots, "should be"); | |
722 | |
723 // No deoptimized frames on the stack | |
724 return 0; | |
725 } | |
726 | |
727 void CppInterpreter::process_method_handle(oop method_handle, TRAPS) { | |
728 JavaThread *thread = (JavaThread *) THREAD; | |
729 ZeroStack *stack = thread->zero_stack(); | |
730 intptr_t *vmslots = stack->sp(); | |
731 | |
732 bool direct_to_method = false; | |
733 BasicType src_rtype = T_ILLEGAL; | |
734 BasicType dst_rtype = T_ILLEGAL; | |
735 | |
736 MethodHandleEntry *entry = | |
737 java_lang_invoke_MethodHandle::vmentry(method_handle); | |
738 MethodHandles::EntryKind entry_kind = | |
739 (MethodHandles::EntryKind) (((intptr_t) entry) & 0xffffffff); | |
740 | |
741 methodOop method = NULL; | |
742 switch (entry_kind) { | |
743 case MethodHandles::_invokestatic_mh: | |
744 direct_to_method = true; | |
745 break; | |
746 | |
747 case MethodHandles::_invokespecial_mh: | |
748 case MethodHandles::_invokevirtual_mh: | |
749 case MethodHandles::_invokeinterface_mh: | |
750 { | |
751 oop receiver = | |
752 VMSLOTS_OBJECT( | |
753 java_lang_invoke_MethodHandle::vmslots(method_handle) - 1); | |
754 if (receiver == NULL) { | |
755 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
756 CALL_VM_NOCHECK_NOFIX( | |
757 throw_exception( | |
758 thread, vmSymbols::java_lang_NullPointerException())); | |
759 // NB all oops trashed! | |
760 assert(HAS_PENDING_EXCEPTION, "should do"); | |
761 return; | |
762 } | |
763 if (entry_kind != MethodHandles::_invokespecial_mh) { | |
764 int index = java_lang_invoke_DirectMethodHandle::vmindex(method_handle); | |
765 instanceKlass* rcvrKlass = | |
766 (instanceKlass *) receiver->klass()->klass_part(); | |
767 if (entry_kind == MethodHandles::_invokevirtual_mh) { | |
768 method = (methodOop) rcvrKlass->start_of_vtable()[index]; | |
769 } | |
770 else { | |
771 oop iclass = java_lang_invoke_MethodHandle::vmtarget(method_handle); | |
772 itableOffsetEntry* ki = | |
773 (itableOffsetEntry *) rcvrKlass->start_of_itable(); | |
774 int i, length = rcvrKlass->itable_length(); | |
775 for (i = 0; i < length; i++, ki++ ) { | |
776 if (ki->interface_klass() == iclass) | |
777 break; | |
778 } | |
779 if (i == length) { | |
780 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
781 CALL_VM_NOCHECK_NOFIX( | |
782 throw_exception( | |
783 thread, vmSymbols::java_lang_IncompatibleClassChangeError())); | |
784 // NB all oops trashed! | |
785 assert(HAS_PENDING_EXCEPTION, "should do"); | |
786 return; | |
787 } | |
788 itableMethodEntry* im = ki->first_method_entry(receiver->klass()); | |
789 method = im[index].method(); | |
790 if (method == NULL) { | |
791 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
792 CALL_VM_NOCHECK_NOFIX( | |
793 throw_exception( | |
794 thread, vmSymbols::java_lang_AbstractMethodError())); | |
795 // NB all oops trashed! | |
796 assert(HAS_PENDING_EXCEPTION, "should do"); | |
797 return; | |
798 } | |
799 } | |
800 } | |
801 } | |
802 direct_to_method = true; | |
803 break; | |
804 | |
805 case MethodHandles::_bound_ref_direct_mh: | |
806 case MethodHandles::_bound_int_direct_mh: | |
807 case MethodHandles::_bound_long_direct_mh: | |
808 direct_to_method = true; | |
809 // fall through | |
810 case MethodHandles::_bound_ref_mh: | |
811 case MethodHandles::_bound_int_mh: | |
812 case MethodHandles::_bound_long_mh: | |
813 { | |
814 BasicType arg_type = T_ILLEGAL; | |
815 int arg_mask = -1; | |
816 int arg_slots = -1; | |
817 MethodHandles::get_ek_bound_mh_info( | |
818 entry_kind, arg_type, arg_mask, arg_slots); | |
819 int arg_slot = | |
820 java_lang_invoke_BoundMethodHandle::vmargslot(method_handle); | |
821 | |
822 // Create the new slot(s) | |
823 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
824 insert_vmslots(arg_slot, arg_slots, THREAD); | |
825 if (HAS_PENDING_EXCEPTION) { | |
826 // all oops trashed | |
827 stack->set_sp(unwind_sp); | |
828 return; | |
829 } | |
830 vmslots = stack->sp(); | |
831 | |
832 // Store bound argument into new stack slot | |
833 oop arg = java_lang_invoke_BoundMethodHandle::argument(method_handle); | |
834 if (arg_type == T_OBJECT) { | |
835 assert(arg_slots == 1, "should be"); | |
836 SET_VMSLOTS_OBJECT(arg, arg_slot); | |
837 } | |
838 else { | |
839 jvalue arg_value; | |
840 arg_type = java_lang_boxing_object::get_value(arg, &arg_value); | |
841 switch (arg_type) { | |
842 case T_BOOLEAN: | |
843 SET_VMSLOTS_INT(arg_value.z, arg_slot); | |
844 break; | |
845 case T_CHAR: | |
846 SET_VMSLOTS_INT(arg_value.c, arg_slot); | |
847 break; | |
848 case T_BYTE: | |
849 SET_VMSLOTS_INT(arg_value.b, arg_slot); | |
850 break; | |
851 case T_SHORT: | |
852 SET_VMSLOTS_INT(arg_value.s, arg_slot); | |
853 break; | |
854 case T_INT: | |
855 SET_VMSLOTS_INT(arg_value.i, arg_slot); | |
856 break; | |
857 case T_FLOAT: | |
858 SET_VMSLOTS_FLOAT(arg_value.f, arg_slot); | |
859 break; | |
860 case T_LONG: | |
861 SET_VMSLOTS_LONG(arg_value.j, arg_slot + 1); | |
862 break; | |
863 case T_DOUBLE: | |
864 SET_VMSLOTS_DOUBLE(arg_value.d, arg_slot + 1); | |
865 break; | |
866 default: | |
867 tty->print_cr("unhandled type %s", type2name(arg_type)); | |
868 ShouldNotReachHere(); | |
869 } | |
870 } | |
871 } | |
872 break; | |
873 | |
874 case MethodHandles::_adapter_retype_only: | |
875 case MethodHandles::_adapter_retype_raw: | |
876 src_rtype = result_type_of_handle( | |
877 java_lang_invoke_MethodHandle::vmtarget(method_handle)); | |
878 dst_rtype = result_type_of_handle(method_handle); | |
879 break; | |
880 | |
881 case MethodHandles::_adapter_check_cast: | |
882 { | |
883 int arg_slot = | |
884 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
885 oop arg = VMSLOTS_OBJECT(arg_slot); | |
886 if (arg != NULL) { | |
887 klassOop objKlassOop = arg->klass(); | |
888 klassOop klassOf = java_lang_Class::as_klassOop( | |
889 java_lang_invoke_AdapterMethodHandle::argument(method_handle)); | |
890 | |
891 if (objKlassOop != klassOf && | |
892 !objKlassOop->klass_part()->is_subtype_of(klassOf)) { | |
893 ResourceMark rm(THREAD); | |
894 const char* objName = Klass::cast(objKlassOop)->external_name(); | |
895 const char* klassName = Klass::cast(klassOf)->external_name(); | |
896 char* message = SharedRuntime::generate_class_cast_message( | |
897 objName, klassName); | |
898 | |
899 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
900 CALL_VM_NOCHECK_NOFIX( | |
901 throw_exception( | |
902 thread, vmSymbols::java_lang_ClassCastException(), message)); | |
903 // NB all oops trashed! | |
904 assert(HAS_PENDING_EXCEPTION, "should do"); | |
905 return; | |
906 } | |
907 } | |
908 } | |
909 break; | |
910 | |
911 case MethodHandles::_adapter_dup_args: | |
912 { | |
913 int arg_slot = | |
914 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
915 int conv = | |
916 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
917 int num_slots = -MethodHandles::adapter_conversion_stack_move(conv); | |
918 assert(num_slots > 0, "should be"); | |
919 | |
920 // Create the new slot(s) | |
921 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
922 stack->overflow_check(num_slots, THREAD); | |
923 if (HAS_PENDING_EXCEPTION) { | |
924 // all oops trashed | |
925 stack->set_sp(unwind_sp); | |
926 return; | |
927 } | |
928 | |
929 // Duplicate the arguments | |
930 for (int i = num_slots - 1; i >= 0; i--) | |
931 stack->push(*VMSLOTS_SLOT(arg_slot + i)); | |
932 | |
933 vmslots = stack->sp(); // unused, but let the compiler figure that out | |
934 } | |
935 break; | |
936 | |
937 case MethodHandles::_adapter_drop_args: | |
938 { | |
939 int arg_slot = | |
940 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
941 int conv = | |
942 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
943 int num_slots = MethodHandles::adapter_conversion_stack_move(conv); | |
944 assert(num_slots > 0, "should be"); | |
945 | |
946 remove_vmslots(arg_slot, num_slots, THREAD); // doesn't trap | |
947 vmslots = stack->sp(); // unused, but let the compiler figure that out | |
948 } | |
949 break; | |
950 | |
951 case MethodHandles::_adapter_opt_swap_1: | |
952 case MethodHandles::_adapter_opt_swap_2: | |
953 case MethodHandles::_adapter_opt_rot_1_up: | |
954 case MethodHandles::_adapter_opt_rot_1_down: | |
955 case MethodHandles::_adapter_opt_rot_2_up: | |
956 case MethodHandles::_adapter_opt_rot_2_down: | |
957 { | |
958 int arg1 = | |
959 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
960 int conv = | |
961 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
962 int arg2 = MethodHandles::adapter_conversion_vminfo(conv); | |
963 | |
964 int swap_bytes = 0, rotate = 0; | |
965 MethodHandles::get_ek_adapter_opt_swap_rot_info( | |
966 entry_kind, swap_bytes, rotate); | |
967 int swap_slots = swap_bytes >> LogBytesPerWord; | |
968 | |
969 intptr_t tmp; | |
970 switch (rotate) { | |
971 case 0: // swap | |
972 for (int i = 0; i < swap_slots; i++) { | |
973 tmp = *VMSLOTS_SLOT(arg1 + i); | |
974 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(arg2 + i), arg1 + i); | |
975 SET_VMSLOTS_SLOT(&tmp, arg2 + i); | |
976 } | |
977 break; | |
978 | |
979 case 1: // up | |
980 assert(arg1 - swap_slots > arg2, "should be"); | |
981 | |
982 tmp = *VMSLOTS_SLOT(arg1); | |
983 for (int i = arg1 - swap_slots; i >= arg2; i--) | |
984 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + swap_slots); | |
985 SET_VMSLOTS_SLOT(&tmp, arg2); | |
986 | |
987 break; | |
988 | |
989 case -1: // down | |
990 assert(arg2 - swap_slots > arg1, "should be"); | |
991 | |
992 tmp = *VMSLOTS_SLOT(arg1); | |
993 for (int i = arg1 + swap_slots; i <= arg2; i++) | |
994 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i - swap_slots); | |
995 SET_VMSLOTS_SLOT(&tmp, arg2); | |
996 break; | |
997 | |
998 default: | |
999 ShouldNotReachHere(); | |
1000 } | |
1001 } | |
1002 break; | |
1003 | |
1004 case MethodHandles::_adapter_opt_i2l: | |
1005 { | |
1006 int arg_slot = | |
1007 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
1008 int arg = VMSLOTS_INT(arg_slot); | |
1009 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
1010 insert_vmslots(arg_slot, 1, THREAD); | |
1011 if (HAS_PENDING_EXCEPTION) { | |
1012 // all oops trashed | |
1013 stack->set_sp(unwind_sp); | |
1014 return; | |
1015 } | |
1016 vmslots = stack->sp(); | |
1017 arg_slot++; | |
1018 SET_VMSLOTS_LONG(arg, arg_slot); | |
1019 } | |
1020 break; | |
1021 | |
1022 case MethodHandles::_adapter_opt_unboxi: | |
1023 case MethodHandles::_adapter_opt_unboxl: | |
1024 { | |
1025 int arg_slot = | |
1026 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
1027 oop arg = VMSLOTS_OBJECT(arg_slot); | |
1028 jvalue arg_value; | |
1029 BasicType arg_type = java_lang_boxing_object::get_value(arg, &arg_value); | |
1030 if (arg_type == T_LONG || arg_type == T_DOUBLE) { | |
1031 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
1032 insert_vmslots(arg_slot, 1, THREAD); | |
1033 if (HAS_PENDING_EXCEPTION) { | |
1034 // all oops trashed | |
1035 stack->set_sp(unwind_sp); | |
1036 return; | |
1037 } | |
1038 vmslots = stack->sp(); | |
1039 arg_slot++; | |
1040 } | |
1041 switch (arg_type) { | |
1042 case T_BOOLEAN: | |
1043 SET_VMSLOTS_INT(arg_value.z, arg_slot); | |
1044 break; | |
1045 case T_CHAR: | |
1046 SET_VMSLOTS_INT(arg_value.c, arg_slot); | |
1047 break; | |
1048 case T_BYTE: | |
1049 SET_VMSLOTS_INT(arg_value.b, arg_slot); | |
1050 break; | |
1051 case T_SHORT: | |
1052 SET_VMSLOTS_INT(arg_value.s, arg_slot); | |
1053 break; | |
1054 case T_INT: | |
1055 SET_VMSLOTS_INT(arg_value.i, arg_slot); | |
1056 break; | |
1057 case T_FLOAT: | |
1058 SET_VMSLOTS_FLOAT(arg_value.f, arg_slot); | |
1059 break; | |
1060 case T_LONG: | |
1061 SET_VMSLOTS_LONG(arg_value.j, arg_slot); | |
1062 break; | |
1063 case T_DOUBLE: | |
1064 SET_VMSLOTS_DOUBLE(arg_value.d, arg_slot); | |
1065 break; | |
1066 default: | |
1067 tty->print_cr("unhandled type %s", type2name(arg_type)); | |
1068 ShouldNotReachHere(); | |
1069 } | |
1070 } | |
1071 break; | |
1072 | |
1073 default: | |
1074 tty->print_cr("unhandled entry_kind %s", | |
1075 MethodHandles::entry_name(entry_kind)); | |
1076 ShouldNotReachHere(); | |
1077 } | |
1078 | |
1079 // Continue along the chain | |
1080 if (direct_to_method) { | |
1081 if (method == NULL) { | |
1082 method = | |
1083 (methodOop) java_lang_invoke_MethodHandle::vmtarget(method_handle); | |
1084 } | |
1085 address entry_point = method->from_interpreted_entry(); | |
1086 Interpreter::invoke_method(method, entry_point, THREAD); | |
1087 } | |
1088 else { | |
1089 process_method_handle( | |
1090 java_lang_invoke_MethodHandle::vmtarget(method_handle), THREAD); | |
1091 } | |
1092 // NB all oops now trashed | |
1093 | |
1094 // Adapt the result type, if necessary | |
1095 if (src_rtype != dst_rtype && !HAS_PENDING_EXCEPTION) { | |
1096 switch (dst_rtype) { | |
1097 case T_VOID: | |
1098 for (int i = 0; i < type2size[src_rtype]; i++) | |
1099 stack->pop(); | |
1100 return; | |
1101 | |
1102 case T_INT: | |
1103 switch (src_rtype) { | |
1104 case T_VOID: | |
1105 stack->overflow_check(1, CHECK); | |
1106 stack->push(0); | |
1107 return; | |
1108 | |
1109 case T_BOOLEAN: | |
1110 case T_CHAR: | |
1111 case T_BYTE: | |
1112 case T_SHORT: | |
1113 return; | |
1114 } | |
1115 } | |
1116 | |
1117 tty->print_cr("unhandled conversion:"); | |
1118 tty->print_cr("src_rtype = %s", type2name(src_rtype)); | |
1119 tty->print_cr("dst_rtype = %s", type2name(dst_rtype)); | |
1120 ShouldNotReachHere(); | |
1121 } | |
1122 } | |
1123 | |
1124 // The new slots will be inserted before slot insert_before. | |
1125 // Slots < insert_before will have the same slot number after the insert. | |
1126 // Slots >= insert_before will become old_slot + num_slots. | |
1127 void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { | |
1128 JavaThread *thread = (JavaThread *) THREAD; | |
1129 ZeroStack *stack = thread->zero_stack(); | |
1130 | |
1131 // Allocate the space | |
1132 stack->overflow_check(num_slots, CHECK); | |
1133 stack->alloc(num_slots * wordSize); | |
1134 intptr_t *vmslots = stack->sp(); | |
1135 | |
1136 // Shuffle everything up | |
1137 for (int i = 0; i < insert_before; i++) | |
1138 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); | |
1139 } | |
1140 | |
1141 void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { | |
1142 JavaThread *thread = (JavaThread *) THREAD; | |
1143 ZeroStack *stack = thread->zero_stack(); | |
1144 intptr_t *vmslots = stack->sp(); | |
1145 | |
1146 // Move everything down | |
1147 for (int i = first_slot - 1; i >= 0; i--) | |
1148 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); | |
1149 | |
1150 // Deallocate the space | |
1151 stack->set_sp(stack->sp() + num_slots); | |
1152 } | |
1153 | |
1154 BasicType CppInterpreter::result_type_of_handle(oop method_handle) { | |
1155 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
1156 oop return_type = java_lang_invoke_MethodType::rtype(method_type); | |
1157 return java_lang_Class::as_BasicType(return_type, (klassOop *) NULL); | |
1158 } | |
1159 | |
1160 intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, | |
1161 oop method_handle) { | |
1162 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
1163 oop form = java_lang_invoke_MethodType::form(method_type); | |
1164 int argument_slots = java_lang_invoke_MethodTypeForm::vmslots(form); | |
1165 | |
1166 return stack->sp() + argument_slots; | |
1167 } | |
1168 | |
1169 IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, | |
1170 Symbol* name, | |
1171 char* message)) | |
1172 THROW_MSG(name, message); | |
1173 IRT_END | |
1174 | |
1379 | 1175 InterpreterFrame *InterpreterFrame::build(const methodOop method, TRAPS) { |
1176 JavaThread *thread = (JavaThread *) THREAD; | |
1177 ZeroStack *stack = thread->zero_stack(); | |
1178 | |
1179 // Calculate the size of the frame we'll build, including | |
1180 // any adjustments to the caller's frame that we'll make. | |
1181 int extra_locals = 0; | |
1182 int monitor_words = 0; | |
1183 int stack_words = 0; | |
1010 | 1184 |
1379 | 1185 if (!method->is_native()) { |
1186 extra_locals = method->max_locals() - method->size_of_parameters(); | |
1187 stack_words = method->max_stack(); | |
1010 | 1188 } |
1379 | 1189 if (method->is_synchronized()) { |
1190 monitor_words = frame::interpreter_frame_monitor_size(); | |
1191 } | |
1192 stack->overflow_check( | |
1193 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
1010 | 1194 |
1379 | 1195 // Adjust the caller's stack frame to accomodate any additional |
1196 // local variables we have contiguously with our parameters. | |
1197 for (int i = 0; i < extra_locals; i++) | |
1198 stack->push(0); | |
1010 | 1199 |
1200 intptr_t *locals; | |
1201 if (method->is_native()) | |
1202 locals = stack->sp() + (method->size_of_parameters() - 1); | |
1203 else | |
1204 locals = stack->sp() + (method->max_locals() - 1); | |
1205 | |
1206 stack->push(0); // next_frame, filled in later | |
1207 intptr_t *fp = stack->sp(); | |
1208 assert(fp - stack->sp() == next_frame_off, "should be"); | |
1209 | |
1210 stack->push(INTERPRETER_FRAME); | |
1211 assert(fp - stack->sp() == frame_type_off, "should be"); | |
1212 | |
1213 interpreterState istate = | |
1214 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
1215 assert(fp - stack->sp() == istate_off, "should be"); | |
1216 | |
1217 istate->set_locals(locals); | |
1218 istate->set_method(method); | |
1219 istate->set_self_link(istate); | |
1220 istate->set_prev_link(NULL); | |
1221 istate->set_thread(thread); | |
1222 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
1223 istate->set_constants(method->constants()->cache()); | |
1224 istate->set_msg(BytecodeInterpreter::method_entry); | |
1225 istate->set_oop_temp(NULL); | |
1226 istate->set_mdx(NULL); | |
1227 istate->set_callee(NULL); | |
1228 | |
1229 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
1230 if (method->is_synchronized()) { | |
1231 BasicObjectLock *monitor = | |
1232 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
1233 oop object; | |
1234 if (method->is_static()) | |
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1235 object = method->constants()->pool_holder()->java_mirror(); |
1010 | 1236 else |
1237 object = (oop) locals[0]; | |
1238 monitor->set_obj(object); | |
1239 } | |
1240 | |
1241 istate->set_stack_base(stack->sp()); | |
1242 istate->set_stack(stack->sp() - 1); | |
1243 if (stack_words) | |
1244 stack->alloc(stack_words * wordSize); | |
1245 istate->set_stack_limit(stack->sp() - 1); | |
1246 | |
1247 return (InterpreterFrame *) fp; | |
1248 } | |
1249 | |
1250 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
1251 int i = 0; | |
1252 switch (type) { | |
1253 case T_BOOLEAN: i = 0; break; | |
1254 case T_CHAR : i = 1; break; | |
1255 case T_BYTE : i = 2; break; | |
1256 case T_SHORT : i = 3; break; | |
1257 case T_INT : i = 4; break; | |
1258 case T_LONG : i = 5; break; | |
1259 case T_VOID : i = 6; break; | |
1260 case T_FLOAT : i = 7; break; | |
1261 case T_DOUBLE : i = 8; break; | |
1262 case T_OBJECT : i = 9; break; | |
1263 case T_ARRAY : i = 9; break; | |
1264 default : ShouldNotReachHere(); | |
1265 } | |
1266 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
1267 "index out of bounds"); | |
1268 return i; | |
1269 } | |
1270 | |
1256 | 1271 BasicType CppInterpreter::result_type_of(methodOop method) { |
1272 BasicType t; | |
1273 switch (method->result_index()) { | |
1274 case 0 : t = T_BOOLEAN; break; | |
1275 case 1 : t = T_CHAR; break; | |
1276 case 2 : t = T_BYTE; break; | |
1277 case 3 : t = T_SHORT; break; | |
1278 case 4 : t = T_INT; break; | |
1279 case 5 : t = T_LONG; break; | |
1280 case 6 : t = T_VOID; break; | |
1281 case 7 : t = T_FLOAT; break; | |
1282 case 8 : t = T_DOUBLE; break; | |
1283 case 9 : t = T_OBJECT; break; | |
1284 default: ShouldNotReachHere(); | |
1285 } | |
1286 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
1287 "out of step with AbstractInterpreter::BasicType_as_index"); | |
1288 return t; | |
1289 } | |
1290 | |
1010 | 1291 address InterpreterGenerator::generate_empty_entry() { |
1292 if (!UseFastEmptyMethods) | |
1293 return NULL; | |
1294 | |
1295 return generate_entry((address) CppInterpreter::empty_entry); | |
1296 } | |
1297 | |
1298 address InterpreterGenerator::generate_accessor_entry() { | |
1299 if (!UseFastAccessorMethods) | |
1300 return NULL; | |
1301 | |
1302 return generate_entry((address) CppInterpreter::accessor_entry); | |
1303 } | |
1304 | |
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1305 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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1306 #ifndef SERIALGC |
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1307 if (UseG1GC) { |
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1308 // We need to generate have a routine that generates code to: |
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1309 // * load the value in the referent field |
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1310 // * passes that value to the pre-barrier. |
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1311 // |
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1312 // In the case of G1 this will record the value of the |
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1313 // referent in an SATB buffer if marking is active. |
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1314 // This will cause concurrent marking to mark the referent |
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1315 // field as live. |
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1316 Unimplemented(); |
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1317 } |
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1318 #endif // SERIALGC |
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1319 |
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1320 // If G1 is not enabled then attempt to go through the accessor entry point |
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1321 // Reference.get is an accessor |
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1322 return generate_accessor_entry(); |
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1323 } |
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1324 |
1010 | 1325 address InterpreterGenerator::generate_native_entry(bool synchronized) { |
1326 assert(synchronized == false, "should be"); | |
1327 | |
1328 return generate_entry((address) CppInterpreter::native_entry); | |
1329 } | |
1330 | |
1331 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1332 assert(synchronized == false, "should be"); | |
1333 | |
1334 return generate_entry((address) CppInterpreter::normal_entry); | |
1335 } | |
1336 | |
1337 address AbstractInterpreterGenerator::generate_method_entry( | |
1338 AbstractInterpreter::MethodKind kind) { | |
1339 address entry_point = NULL; | |
1340 | |
1341 switch (kind) { | |
1342 case Interpreter::zerolocals: | |
1343 case Interpreter::zerolocals_synchronized: | |
1344 break; | |
1345 | |
1346 case Interpreter::native: | |
1347 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
1348 break; | |
1349 | |
1350 case Interpreter::native_synchronized: | |
1351 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
1352 break; | |
1353 | |
1354 case Interpreter::empty: | |
1355 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
1356 break; | |
1357 | |
1358 case Interpreter::accessor: | |
1359 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
1360 break; | |
1361 | |
1362 case Interpreter::abstract: | |
1363 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
1364 break; | |
1365 | |
1366 case Interpreter::method_handle: | |
1367 entry_point = ((InterpreterGenerator*) this)->generate_method_handle_entry(); | |
1368 break; | |
1369 | |
1370 case Interpreter::java_lang_math_sin: | |
1371 case Interpreter::java_lang_math_cos: | |
1372 case Interpreter::java_lang_math_tan: | |
1373 case Interpreter::java_lang_math_abs: | |
1374 case Interpreter::java_lang_math_log: | |
1375 case Interpreter::java_lang_math_log10: | |
1376 case Interpreter::java_lang_math_sqrt: | |
1377 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); | |
1378 break; | |
1379 | |
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1380 case Interpreter::java_lang_ref_reference_get: |
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1381 entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
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1382 break; |
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1383 |
1010 | 1384 default: |
1385 ShouldNotReachHere(); | |
1386 } | |
1387 | |
1388 if (entry_point == NULL) | |
1389 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
1390 | |
1391 return entry_point; | |
1392 } | |
1393 | |
1394 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
1395 : CppInterpreterGenerator(code) { | |
1396 generate_all(); | |
1397 } | |
1398 | |
1399 // Deoptimization helpers | |
1400 | |
1379 | 1401 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
1402 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
1403 | |
1010 | 1404 int size_in_words = size >> LogBytesPerWord; |
1405 assert(size_in_words * wordSize == size, "unaligned"); | |
1406 assert(size_in_words >= header_words, "too small"); | |
1379 | 1407 stack->overflow_check(size_in_words, CHECK_NULL); |
1010 | 1408 |
1409 stack->push(0); // next_frame, filled in later | |
1410 intptr_t *fp = stack->sp(); | |
1411 assert(fp - stack->sp() == next_frame_off, "should be"); | |
1412 | |
1413 stack->push(INTERPRETER_FRAME); | |
1414 assert(fp - stack->sp() == frame_type_off, "should be"); | |
1415 | |
1416 interpreterState istate = | |
1417 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
1418 assert(fp - stack->sp() == istate_off, "should be"); | |
1419 istate->set_self_link(NULL); // mark invalid | |
1420 | |
1421 stack->alloc((size_in_words - header_words) * wordSize); | |
1422 | |
1423 return (InterpreterFrame *) fp; | |
1424 } | |
1425 | |
1426 int AbstractInterpreter::layout_activation(methodOop method, | |
1427 int tempcount, | |
1428 int popframe_extra_args, | |
1429 int moncount, | |
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1430 int caller_actual_parameters, |
1010 | 1431 int callee_param_count, |
1432 int callee_locals, | |
1433 frame* caller, | |
1434 frame* interpreter_frame, | |
1435 bool is_top_frame) { | |
1436 assert(popframe_extra_args == 0, "what to do?"); | |
1437 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
1605 | 1438 "top frame should have no caller"); |
1010 | 1439 |
1440 // This code must exactly match what InterpreterFrame::build | |
1441 // does (the full InterpreterFrame::build, that is, not the | |
1442 // one that creates empty frames for the deoptimizer). | |
1443 // | |
1444 // If interpreter_frame is not NULL then it will be filled in. | |
1445 // It's size is determined by a previous call to this method, | |
1446 // so it should be correct. | |
1447 // | |
1448 // Note that tempcount is the current size of the expression | |
1449 // stack. For top most frames we will allocate a full sized | |
1450 // expression stack and not the trimmed version that non-top | |
1451 // frames have. | |
1452 | |
1453 int header_words = InterpreterFrame::header_words; | |
1454 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
1455 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
1456 int callee_extra_locals = callee_locals - callee_param_count; | |
1457 | |
1458 if (interpreter_frame) { | |
1505 | 1459 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
1010 | 1460 interpreterState istate = interpreter_frame->get_interpreterState(); |
1461 intptr_t *monitor_base = (intptr_t*) istate; | |
1462 intptr_t *stack_base = monitor_base - monitor_words; | |
1463 intptr_t *stack = stack_base - tempcount - 1; | |
1464 | |
1465 BytecodeInterpreter::layout_interpreterState(istate, | |
1466 caller, | |
1467 NULL, | |
1468 method, | |
1469 locals, | |
1470 stack, | |
1471 stack_base, | |
1472 monitor_base, | |
1473 NULL, | |
1474 is_top_frame); | |
1475 } | |
1476 return header_words + monitor_words + stack_words + callee_extra_locals; | |
1477 } | |
1478 | |
1479 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
1480 frame* caller, | |
1481 frame* current, | |
1482 methodOop method, | |
1483 intptr_t* locals, | |
1484 intptr_t* stack, | |
1485 intptr_t* stack_base, | |
1486 intptr_t* monitor_base, | |
1487 intptr_t* frame_bottom, | |
1488 bool is_top_frame) { | |
1489 istate->set_locals(locals); | |
1490 istate->set_method(method); | |
1491 istate->set_self_link(istate); | |
1492 istate->set_prev_link(NULL); | |
1493 // thread will be set by a hacky repurposing of frame::patch_pc() | |
1494 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
1495 istate->set_constants(method->constants()->cache()); | |
1496 istate->set_msg(BytecodeInterpreter::method_resume); | |
1497 istate->set_bcp_advance(0); | |
1498 istate->set_oop_temp(NULL); | |
1499 istate->set_mdx(NULL); | |
1500 if (caller->is_interpreted_frame()) { | |
1501 interpreterState prev = caller->get_interpreterState(); | |
1502 prev->set_callee(method); | |
1503 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
1504 prev->set_bcp_advance(5); | |
1505 else | |
1506 prev->set_bcp_advance(3); | |
1507 } | |
1508 istate->set_callee(NULL); | |
1509 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
1510 istate->set_stack_base(stack_base); | |
1511 istate->set_stack(stack); | |
1512 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
1513 } | |
1514 | |
1515 address CppInterpreter::return_entry(TosState state, int length) { | |
1516 ShouldNotCallThis(); | |
1517 } | |
1518 | |
1519 address CppInterpreter::deopt_entry(TosState state, int length) { | |
1520 return NULL; | |
1521 } | |
1522 | |
1523 // Helper for (runtime) stack overflow checks | |
1524 | |
1525 int AbstractInterpreter::size_top_interpreter_activation(methodOop method) { | |
1526 return 0; | |
1527 } | |
1528 | |
1529 // Helper for figuring out if frames are interpreter frames | |
1530 | |
1531 bool CppInterpreter::contains(address pc) { | |
1532 #ifdef PRODUCT | |
1533 ShouldNotCallThis(); | |
1534 #else | |
1535 return false; // make frame::print_value_on work | |
1536 #endif // !PRODUCT | |
1537 } | |
1538 | |
1539 // Result handlers and convertors | |
1540 | |
1541 address CppInterpreterGenerator::generate_result_handler_for( | |
1542 BasicType type) { | |
1543 assembler()->advance(1); | |
1544 return ShouldNotCallThisStub(); | |
1545 } | |
1546 | |
1547 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
1548 BasicType type) { | |
1549 assembler()->advance(1); | |
1550 return ShouldNotCallThisStub(); | |
1551 } | |
1552 | |
1553 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
1554 BasicType type) { | |
1555 assembler()->advance(1); | |
1556 return ShouldNotCallThisStub(); | |
1557 } | |
1558 | |
1559 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
1560 BasicType type) { | |
1561 assembler()->advance(1); | |
1562 return ShouldNotCallThisStub(); | |
1563 } | |
1564 | |
1565 #endif // CC_INTERP |