Mercurial > hg > truffle
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 6392:4f7b8550daf8
Merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 14 Sep 2012 13:50:49 +0200 |
parents | 1d7922586cf6 |
children | da91efe96a93 |
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 | |
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649 int num_vmslots = argument_slots - 1; |
2480 | 650 oop method_handle = VMSLOTS_OBJECT(num_vmslots); |
651 | |
652 // InvokeGeneric requires some extra shuffling | |
653 oop mhtype = java_lang_invoke_MethodHandle::type(method_handle); | |
654 bool is_exact = mhtype == method_type; | |
655 if (!is_exact) { | |
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656 if (true || // FIXME |
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657 method->intrinsic_id() == vmIntrinsics::_invokeExact) { |
2480 | 658 CALL_VM_NOCHECK_NOFIX( |
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659 SharedRuntime::throw_WrongMethodTypeException( |
2480 | 660 thread, method_type, mhtype)); |
661 // NB all oops trashed! | |
662 assert(HAS_PENDING_EXCEPTION, "should do"); | |
663 stack->set_sp(unwind_sp); | |
664 return 0; | |
665 } | |
666 assert(method->intrinsic_id() == vmIntrinsics::_invokeGeneric, "should be"); | |
667 | |
668 // Load up an adapter from the calling type | |
669 // NB the x86 code for this (in methodHandles_x86.cpp, search for | |
670 // "genericInvoker") is really really odd. I'm hoping it's trying | |
671 // to accomodate odd VM/class library combinations I can ignore. | |
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672 oop adapter = NULL; //FIXME: load the adapter from the CP cache |
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673 IF (adapter == NULL) { |
2480 | 674 CALL_VM_NOCHECK_NOFIX( |
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675 SharedRuntime::throw_WrongMethodTypeException( |
2480 | 676 thread, method_type, mhtype)); |
677 // NB all oops trashed! | |
678 assert(HAS_PENDING_EXCEPTION, "should do"); | |
679 stack->set_sp(unwind_sp); | |
680 return 0; | |
681 } | |
682 | |
683 // Adapters are shared among form-families of method-type. The | |
684 // type being called is passed as a trusted first argument so that | |
685 // the adapter knows the actual types of its arguments and return | |
686 // values. | |
687 insert_vmslots(num_vmslots + 1, 1, THREAD); | |
688 if (HAS_PENDING_EXCEPTION) { | |
689 // NB all oops trashed! | |
690 stack->set_sp(unwind_sp); | |
691 return 0; | |
692 } | |
693 | |
694 vmslots = stack->sp(); | |
695 num_vmslots++; | |
696 SET_VMSLOTS_OBJECT(method_type, num_vmslots); | |
697 | |
698 method_handle = adapter; | |
699 } | |
700 | |
701 // Start processing | |
702 process_method_handle(method_handle, THREAD); | |
703 if (HAS_PENDING_EXCEPTION) | |
704 result_slots = 0; | |
705 | |
706 // If this is an invokeExact then the eventual callee will not | |
707 // have unwound the method handle argument so we have to do it. | |
708 // If a result is being returned the it will be above the method | |
709 // handle argument we're unwinding. | |
710 if (is_exact) { | |
711 intptr_t result[2]; | |
712 for (int i = 0; i < result_slots; i++) | |
713 result[i] = stack->pop(); | |
714 stack->pop(); | |
715 for (int i = result_slots - 1; i >= 0; i--) | |
716 stack->push(result[i]); | |
717 } | |
718 | |
719 // Check | |
720 assert(stack->sp() == unwind_sp - result_slots, "should be"); | |
721 | |
722 // No deoptimized frames on the stack | |
723 return 0; | |
724 } | |
725 | |
726 void CppInterpreter::process_method_handle(oop method_handle, TRAPS) { | |
727 JavaThread *thread = (JavaThread *) THREAD; | |
728 ZeroStack *stack = thread->zero_stack(); | |
729 intptr_t *vmslots = stack->sp(); | |
730 | |
731 bool direct_to_method = false; | |
732 BasicType src_rtype = T_ILLEGAL; | |
733 BasicType dst_rtype = T_ILLEGAL; | |
734 | |
735 MethodHandleEntry *entry = | |
736 java_lang_invoke_MethodHandle::vmentry(method_handle); | |
737 MethodHandles::EntryKind entry_kind = | |
738 (MethodHandles::EntryKind) (((intptr_t) entry) & 0xffffffff); | |
739 | |
740 methodOop method = NULL; | |
741 switch (entry_kind) { | |
742 case MethodHandles::_invokestatic_mh: | |
743 direct_to_method = true; | |
744 break; | |
745 | |
746 case MethodHandles::_invokespecial_mh: | |
747 case MethodHandles::_invokevirtual_mh: | |
748 case MethodHandles::_invokeinterface_mh: | |
749 { | |
750 oop receiver = | |
751 VMSLOTS_OBJECT( | |
752 java_lang_invoke_MethodHandle::vmslots(method_handle) - 1); | |
753 if (receiver == NULL) { | |
754 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
755 CALL_VM_NOCHECK_NOFIX( | |
756 throw_exception( | |
757 thread, vmSymbols::java_lang_NullPointerException())); | |
758 // NB all oops trashed! | |
759 assert(HAS_PENDING_EXCEPTION, "should do"); | |
760 return; | |
761 } | |
762 if (entry_kind != MethodHandles::_invokespecial_mh) { | |
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763 intptr_t index = java_lang_invoke_DirectMethodHandle::vmindex(method_handle); |
2480 | 764 instanceKlass* rcvrKlass = |
765 (instanceKlass *) receiver->klass()->klass_part(); | |
766 if (entry_kind == MethodHandles::_invokevirtual_mh) { | |
767 method = (methodOop) rcvrKlass->start_of_vtable()[index]; | |
768 } | |
769 else { | |
770 oop iclass = java_lang_invoke_MethodHandle::vmtarget(method_handle); | |
771 itableOffsetEntry* ki = | |
772 (itableOffsetEntry *) rcvrKlass->start_of_itable(); | |
773 int i, length = rcvrKlass->itable_length(); | |
774 for (i = 0; i < length; i++, ki++ ) { | |
775 if (ki->interface_klass() == iclass) | |
776 break; | |
777 } | |
778 if (i == length) { | |
779 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
780 CALL_VM_NOCHECK_NOFIX( | |
781 throw_exception( | |
782 thread, vmSymbols::java_lang_IncompatibleClassChangeError())); | |
783 // NB all oops trashed! | |
784 assert(HAS_PENDING_EXCEPTION, "should do"); | |
785 return; | |
786 } | |
787 itableMethodEntry* im = ki->first_method_entry(receiver->klass()); | |
788 method = im[index].method(); | |
789 if (method == NULL) { | |
790 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
791 CALL_VM_NOCHECK_NOFIX( | |
792 throw_exception( | |
793 thread, vmSymbols::java_lang_AbstractMethodError())); | |
794 // NB all oops trashed! | |
795 assert(HAS_PENDING_EXCEPTION, "should do"); | |
796 return; | |
797 } | |
798 } | |
799 } | |
800 } | |
801 direct_to_method = true; | |
802 break; | |
803 | |
804 case MethodHandles::_bound_ref_direct_mh: | |
805 case MethodHandles::_bound_int_direct_mh: | |
806 case MethodHandles::_bound_long_direct_mh: | |
807 direct_to_method = true; | |
808 // fall through | |
809 case MethodHandles::_bound_ref_mh: | |
810 case MethodHandles::_bound_int_mh: | |
811 case MethodHandles::_bound_long_mh: | |
812 { | |
813 BasicType arg_type = T_ILLEGAL; | |
814 int arg_mask = -1; | |
815 int arg_slots = -1; | |
816 MethodHandles::get_ek_bound_mh_info( | |
817 entry_kind, arg_type, arg_mask, arg_slots); | |
818 int arg_slot = | |
819 java_lang_invoke_BoundMethodHandle::vmargslot(method_handle); | |
820 | |
821 // Create the new slot(s) | |
822 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
823 insert_vmslots(arg_slot, arg_slots, THREAD); | |
824 if (HAS_PENDING_EXCEPTION) { | |
825 // all oops trashed | |
826 stack->set_sp(unwind_sp); | |
827 return; | |
828 } | |
829 vmslots = stack->sp(); | |
830 | |
831 // Store bound argument into new stack slot | |
832 oop arg = java_lang_invoke_BoundMethodHandle::argument(method_handle); | |
833 if (arg_type == T_OBJECT) { | |
834 assert(arg_slots == 1, "should be"); | |
835 SET_VMSLOTS_OBJECT(arg, arg_slot); | |
836 } | |
837 else { | |
838 jvalue arg_value; | |
839 arg_type = java_lang_boxing_object::get_value(arg, &arg_value); | |
840 switch (arg_type) { | |
841 case T_BOOLEAN: | |
842 SET_VMSLOTS_INT(arg_value.z, arg_slot); | |
843 break; | |
844 case T_CHAR: | |
845 SET_VMSLOTS_INT(arg_value.c, arg_slot); | |
846 break; | |
847 case T_BYTE: | |
848 SET_VMSLOTS_INT(arg_value.b, arg_slot); | |
849 break; | |
850 case T_SHORT: | |
851 SET_VMSLOTS_INT(arg_value.s, arg_slot); | |
852 break; | |
853 case T_INT: | |
854 SET_VMSLOTS_INT(arg_value.i, arg_slot); | |
855 break; | |
856 case T_FLOAT: | |
857 SET_VMSLOTS_FLOAT(arg_value.f, arg_slot); | |
858 break; | |
859 case T_LONG: | |
860 SET_VMSLOTS_LONG(arg_value.j, arg_slot + 1); | |
861 break; | |
862 case T_DOUBLE: | |
863 SET_VMSLOTS_DOUBLE(arg_value.d, arg_slot + 1); | |
864 break; | |
865 default: | |
866 tty->print_cr("unhandled type %s", type2name(arg_type)); | |
867 ShouldNotReachHere(); | |
868 } | |
869 } | |
870 } | |
871 break; | |
872 | |
873 case MethodHandles::_adapter_retype_only: | |
874 case MethodHandles::_adapter_retype_raw: | |
875 src_rtype = result_type_of_handle( | |
876 java_lang_invoke_MethodHandle::vmtarget(method_handle)); | |
877 dst_rtype = result_type_of_handle(method_handle); | |
878 break; | |
879 | |
880 case MethodHandles::_adapter_check_cast: | |
881 { | |
882 int arg_slot = | |
883 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
884 oop arg = VMSLOTS_OBJECT(arg_slot); | |
885 if (arg != NULL) { | |
886 klassOop objKlassOop = arg->klass(); | |
887 klassOop klassOf = java_lang_Class::as_klassOop( | |
888 java_lang_invoke_AdapterMethodHandle::argument(method_handle)); | |
889 | |
890 if (objKlassOop != klassOf && | |
891 !objKlassOop->klass_part()->is_subtype_of(klassOf)) { | |
892 ResourceMark rm(THREAD); | |
893 const char* objName = Klass::cast(objKlassOop)->external_name(); | |
894 const char* klassName = Klass::cast(klassOf)->external_name(); | |
895 char* message = SharedRuntime::generate_class_cast_message( | |
896 objName, klassName); | |
897 | |
898 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
899 CALL_VM_NOCHECK_NOFIX( | |
900 throw_exception( | |
901 thread, vmSymbols::java_lang_ClassCastException(), message)); | |
902 // NB all oops trashed! | |
903 assert(HAS_PENDING_EXCEPTION, "should do"); | |
904 return; | |
905 } | |
906 } | |
907 } | |
908 break; | |
909 | |
910 case MethodHandles::_adapter_dup_args: | |
911 { | |
912 int arg_slot = | |
913 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
914 int conv = | |
915 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
916 int num_slots = -MethodHandles::adapter_conversion_stack_move(conv); | |
917 assert(num_slots > 0, "should be"); | |
918 | |
919 // Create the new slot(s) | |
920 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
921 stack->overflow_check(num_slots, THREAD); | |
922 if (HAS_PENDING_EXCEPTION) { | |
923 // all oops trashed | |
924 stack->set_sp(unwind_sp); | |
925 return; | |
926 } | |
927 | |
928 // Duplicate the arguments | |
929 for (int i = num_slots - 1; i >= 0; i--) | |
930 stack->push(*VMSLOTS_SLOT(arg_slot + i)); | |
931 | |
932 vmslots = stack->sp(); // unused, but let the compiler figure that out | |
933 } | |
934 break; | |
935 | |
936 case MethodHandles::_adapter_drop_args: | |
937 { | |
938 int arg_slot = | |
939 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
940 int conv = | |
941 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
942 int num_slots = MethodHandles::adapter_conversion_stack_move(conv); | |
943 assert(num_slots > 0, "should be"); | |
944 | |
945 remove_vmslots(arg_slot, num_slots, THREAD); // doesn't trap | |
946 vmslots = stack->sp(); // unused, but let the compiler figure that out | |
947 } | |
948 break; | |
949 | |
950 case MethodHandles::_adapter_opt_swap_1: | |
951 case MethodHandles::_adapter_opt_swap_2: | |
952 case MethodHandles::_adapter_opt_rot_1_up: | |
953 case MethodHandles::_adapter_opt_rot_1_down: | |
954 case MethodHandles::_adapter_opt_rot_2_up: | |
955 case MethodHandles::_adapter_opt_rot_2_down: | |
956 { | |
957 int arg1 = | |
958 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
959 int conv = | |
960 java_lang_invoke_AdapterMethodHandle::conversion(method_handle); | |
961 int arg2 = MethodHandles::adapter_conversion_vminfo(conv); | |
962 | |
963 int swap_bytes = 0, rotate = 0; | |
964 MethodHandles::get_ek_adapter_opt_swap_rot_info( | |
965 entry_kind, swap_bytes, rotate); | |
966 int swap_slots = swap_bytes >> LogBytesPerWord; | |
967 | |
968 intptr_t tmp; | |
969 switch (rotate) { | |
970 case 0: // swap | |
971 for (int i = 0; i < swap_slots; i++) { | |
972 tmp = *VMSLOTS_SLOT(arg1 + i); | |
973 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(arg2 + i), arg1 + i); | |
974 SET_VMSLOTS_SLOT(&tmp, arg2 + i); | |
975 } | |
976 break; | |
977 | |
978 case 1: // up | |
979 assert(arg1 - swap_slots > arg2, "should be"); | |
980 | |
981 tmp = *VMSLOTS_SLOT(arg1); | |
982 for (int i = arg1 - swap_slots; i >= arg2; i--) | |
983 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + swap_slots); | |
984 SET_VMSLOTS_SLOT(&tmp, arg2); | |
985 | |
986 break; | |
987 | |
988 case -1: // down | |
989 assert(arg2 - swap_slots > arg1, "should be"); | |
990 | |
991 tmp = *VMSLOTS_SLOT(arg1); | |
992 for (int i = arg1 + swap_slots; i <= arg2; i++) | |
993 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i - swap_slots); | |
994 SET_VMSLOTS_SLOT(&tmp, arg2); | |
995 break; | |
996 | |
997 default: | |
998 ShouldNotReachHere(); | |
999 } | |
1000 } | |
1001 break; | |
1002 | |
1003 case MethodHandles::_adapter_opt_i2l: | |
1004 { | |
1005 int arg_slot = | |
1006 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
1007 int arg = VMSLOTS_INT(arg_slot); | |
1008 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
1009 insert_vmslots(arg_slot, 1, THREAD); | |
1010 if (HAS_PENDING_EXCEPTION) { | |
1011 // all oops trashed | |
1012 stack->set_sp(unwind_sp); | |
1013 return; | |
1014 } | |
1015 vmslots = stack->sp(); | |
1016 arg_slot++; | |
1017 SET_VMSLOTS_LONG(arg, arg_slot); | |
1018 } | |
1019 break; | |
1020 | |
1021 case MethodHandles::_adapter_opt_unboxi: | |
1022 case MethodHandles::_adapter_opt_unboxl: | |
1023 { | |
1024 int arg_slot = | |
1025 java_lang_invoke_AdapterMethodHandle::vmargslot(method_handle); | |
1026 oop arg = VMSLOTS_OBJECT(arg_slot); | |
1027 jvalue arg_value; | |
6071 | 1028 if (arg == NULL) { |
1029 // queue a nullpointer exception for the caller | |
1030 stack->set_sp(calculate_unwind_sp(stack, method_handle)); | |
1031 CALL_VM_NOCHECK_NOFIX( | |
1032 throw_exception( | |
1033 thread, vmSymbols::java_lang_NullPointerException())); | |
1034 // NB all oops trashed! | |
1035 assert(HAS_PENDING_EXCEPTION, "should do"); | |
1036 return; | |
1037 } | |
2480 | 1038 BasicType arg_type = java_lang_boxing_object::get_value(arg, &arg_value); |
1039 if (arg_type == T_LONG || arg_type == T_DOUBLE) { | |
1040 intptr_t *unwind_sp = calculate_unwind_sp(stack, method_handle); | |
1041 insert_vmslots(arg_slot, 1, THREAD); | |
1042 if (HAS_PENDING_EXCEPTION) { | |
1043 // all oops trashed | |
1044 stack->set_sp(unwind_sp); | |
1045 return; | |
1046 } | |
1047 vmslots = stack->sp(); | |
1048 arg_slot++; | |
1049 } | |
1050 switch (arg_type) { | |
1051 case T_BOOLEAN: | |
1052 SET_VMSLOTS_INT(arg_value.z, arg_slot); | |
1053 break; | |
1054 case T_CHAR: | |
1055 SET_VMSLOTS_INT(arg_value.c, arg_slot); | |
1056 break; | |
1057 case T_BYTE: | |
1058 SET_VMSLOTS_INT(arg_value.b, arg_slot); | |
1059 break; | |
1060 case T_SHORT: | |
1061 SET_VMSLOTS_INT(arg_value.s, arg_slot); | |
1062 break; | |
1063 case T_INT: | |
1064 SET_VMSLOTS_INT(arg_value.i, arg_slot); | |
1065 break; | |
1066 case T_FLOAT: | |
1067 SET_VMSLOTS_FLOAT(arg_value.f, arg_slot); | |
1068 break; | |
1069 case T_LONG: | |
1070 SET_VMSLOTS_LONG(arg_value.j, arg_slot); | |
1071 break; | |
1072 case T_DOUBLE: | |
1073 SET_VMSLOTS_DOUBLE(arg_value.d, arg_slot); | |
1074 break; | |
1075 default: | |
1076 tty->print_cr("unhandled type %s", type2name(arg_type)); | |
1077 ShouldNotReachHere(); | |
1078 } | |
1079 } | |
1080 break; | |
1081 | |
1082 default: | |
1083 tty->print_cr("unhandled entry_kind %s", | |
1084 MethodHandles::entry_name(entry_kind)); | |
1085 ShouldNotReachHere(); | |
1086 } | |
1087 | |
1088 // Continue along the chain | |
1089 if (direct_to_method) { | |
1090 if (method == NULL) { | |
1091 method = | |
1092 (methodOop) java_lang_invoke_MethodHandle::vmtarget(method_handle); | |
1093 } | |
1094 address entry_point = method->from_interpreted_entry(); | |
1095 Interpreter::invoke_method(method, entry_point, THREAD); | |
1096 } | |
1097 else { | |
1098 process_method_handle( | |
1099 java_lang_invoke_MethodHandle::vmtarget(method_handle), THREAD); | |
1100 } | |
1101 // NB all oops now trashed | |
1102 | |
1103 // Adapt the result type, if necessary | |
1104 if (src_rtype != dst_rtype && !HAS_PENDING_EXCEPTION) { | |
1105 switch (dst_rtype) { | |
1106 case T_VOID: | |
1107 for (int i = 0; i < type2size[src_rtype]; i++) | |
1108 stack->pop(); | |
1109 return; | |
1110 | |
1111 case T_INT: | |
1112 switch (src_rtype) { | |
1113 case T_VOID: | |
1114 stack->overflow_check(1, CHECK); | |
1115 stack->push(0); | |
1116 return; | |
1117 | |
1118 case T_BOOLEAN: | |
1119 case T_CHAR: | |
1120 case T_BYTE: | |
1121 case T_SHORT: | |
1122 return; | |
1123 } | |
6071 | 1124 // INT results sometimes need narrowing |
1125 case T_BOOLEAN: | |
1126 case T_CHAR: | |
1127 case T_BYTE: | |
1128 case T_SHORT: | |
1129 switch (src_rtype) { | |
1130 case T_INT: | |
1131 return; | |
1132 } | |
2480 | 1133 } |
1134 | |
1135 tty->print_cr("unhandled conversion:"); | |
1136 tty->print_cr("src_rtype = %s", type2name(src_rtype)); | |
1137 tty->print_cr("dst_rtype = %s", type2name(dst_rtype)); | |
1138 ShouldNotReachHere(); | |
1139 } | |
1140 } | |
1141 | |
1142 // The new slots will be inserted before slot insert_before. | |
1143 // Slots < insert_before will have the same slot number after the insert. | |
1144 // Slots >= insert_before will become old_slot + num_slots. | |
1145 void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { | |
1146 JavaThread *thread = (JavaThread *) THREAD; | |
1147 ZeroStack *stack = thread->zero_stack(); | |
1148 | |
1149 // Allocate the space | |
1150 stack->overflow_check(num_slots, CHECK); | |
1151 stack->alloc(num_slots * wordSize); | |
1152 intptr_t *vmslots = stack->sp(); | |
1153 | |
1154 // Shuffle everything up | |
1155 for (int i = 0; i < insert_before; i++) | |
1156 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); | |
1157 } | |
1158 | |
1159 void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { | |
1160 JavaThread *thread = (JavaThread *) THREAD; | |
1161 ZeroStack *stack = thread->zero_stack(); | |
1162 intptr_t *vmslots = stack->sp(); | |
1163 | |
1164 // Move everything down | |
1165 for (int i = first_slot - 1; i >= 0; i--) | |
1166 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); | |
1167 | |
1168 // Deallocate the space | |
1169 stack->set_sp(stack->sp() + num_slots); | |
1170 } | |
1171 | |
1172 BasicType CppInterpreter::result_type_of_handle(oop method_handle) { | |
1173 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
1174 oop return_type = java_lang_invoke_MethodType::rtype(method_type); | |
1175 return java_lang_Class::as_BasicType(return_type, (klassOop *) NULL); | |
1176 } | |
1177 | |
1178 intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, | |
1179 oop method_handle) { | |
1180 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
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1181 int argument_slots = java_lang_invoke_MethodType::ptype_slot_count(method_type); |
2480 | 1182 |
1183 return stack->sp() + argument_slots; | |
1184 } | |
1185 | |
1186 IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, | |
1187 Symbol* name, | |
1188 char* message)) | |
1189 THROW_MSG(name, message); | |
1190 IRT_END | |
1191 | |
1379 | 1192 InterpreterFrame *InterpreterFrame::build(const methodOop method, TRAPS) { |
1193 JavaThread *thread = (JavaThread *) THREAD; | |
1194 ZeroStack *stack = thread->zero_stack(); | |
1195 | |
1196 // Calculate the size of the frame we'll build, including | |
1197 // any adjustments to the caller's frame that we'll make. | |
1198 int extra_locals = 0; | |
1199 int monitor_words = 0; | |
1200 int stack_words = 0; | |
1010 | 1201 |
1379 | 1202 if (!method->is_native()) { |
1203 extra_locals = method->max_locals() - method->size_of_parameters(); | |
1204 stack_words = method->max_stack(); | |
1010 | 1205 } |
1379 | 1206 if (method->is_synchronized()) { |
1207 monitor_words = frame::interpreter_frame_monitor_size(); | |
1208 } | |
1209 stack->overflow_check( | |
1210 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
1010 | 1211 |
1379 | 1212 // Adjust the caller's stack frame to accomodate any additional |
1213 // local variables we have contiguously with our parameters. | |
1214 for (int i = 0; i < extra_locals; i++) | |
1215 stack->push(0); | |
1010 | 1216 |
1217 intptr_t *locals; | |
1218 if (method->is_native()) | |
1219 locals = stack->sp() + (method->size_of_parameters() - 1); | |
1220 else | |
1221 locals = stack->sp() + (method->max_locals() - 1); | |
1222 | |
1223 stack->push(0); // next_frame, filled in later | |
1224 intptr_t *fp = stack->sp(); | |
1225 assert(fp - stack->sp() == next_frame_off, "should be"); | |
1226 | |
1227 stack->push(INTERPRETER_FRAME); | |
1228 assert(fp - stack->sp() == frame_type_off, "should be"); | |
1229 | |
1230 interpreterState istate = | |
1231 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
1232 assert(fp - stack->sp() == istate_off, "should be"); | |
1233 | |
1234 istate->set_locals(locals); | |
1235 istate->set_method(method); | |
1236 istate->set_self_link(istate); | |
1237 istate->set_prev_link(NULL); | |
1238 istate->set_thread(thread); | |
1239 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
1240 istate->set_constants(method->constants()->cache()); | |
1241 istate->set_msg(BytecodeInterpreter::method_entry); | |
1242 istate->set_oop_temp(NULL); | |
1243 istate->set_mdx(NULL); | |
1244 istate->set_callee(NULL); | |
1245 | |
1246 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
1247 if (method->is_synchronized()) { | |
1248 BasicObjectLock *monitor = | |
1249 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
1250 oop object; | |
1251 if (method->is_static()) | |
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1252 object = method->constants()->pool_holder()->java_mirror(); |
1010 | 1253 else |
1254 object = (oop) locals[0]; | |
1255 monitor->set_obj(object); | |
1256 } | |
1257 | |
1258 istate->set_stack_base(stack->sp()); | |
1259 istate->set_stack(stack->sp() - 1); | |
1260 if (stack_words) | |
1261 stack->alloc(stack_words * wordSize); | |
1262 istate->set_stack_limit(stack->sp() - 1); | |
1263 | |
1264 return (InterpreterFrame *) fp; | |
1265 } | |
1266 | |
1267 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
1268 int i = 0; | |
1269 switch (type) { | |
1270 case T_BOOLEAN: i = 0; break; | |
1271 case T_CHAR : i = 1; break; | |
1272 case T_BYTE : i = 2; break; | |
1273 case T_SHORT : i = 3; break; | |
1274 case T_INT : i = 4; break; | |
1275 case T_LONG : i = 5; break; | |
1276 case T_VOID : i = 6; break; | |
1277 case T_FLOAT : i = 7; break; | |
1278 case T_DOUBLE : i = 8; break; | |
1279 case T_OBJECT : i = 9; break; | |
1280 case T_ARRAY : i = 9; break; | |
1281 default : ShouldNotReachHere(); | |
1282 } | |
1283 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
1284 "index out of bounds"); | |
1285 return i; | |
1286 } | |
1287 | |
1256 | 1288 BasicType CppInterpreter::result_type_of(methodOop method) { |
1289 BasicType t; | |
1290 switch (method->result_index()) { | |
1291 case 0 : t = T_BOOLEAN; break; | |
1292 case 1 : t = T_CHAR; break; | |
1293 case 2 : t = T_BYTE; break; | |
1294 case 3 : t = T_SHORT; break; | |
1295 case 4 : t = T_INT; break; | |
1296 case 5 : t = T_LONG; break; | |
1297 case 6 : t = T_VOID; break; | |
1298 case 7 : t = T_FLOAT; break; | |
1299 case 8 : t = T_DOUBLE; break; | |
1300 case 9 : t = T_OBJECT; break; | |
1301 default: ShouldNotReachHere(); | |
1302 } | |
1303 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
1304 "out of step with AbstractInterpreter::BasicType_as_index"); | |
1305 return t; | |
1306 } | |
1307 | |
1010 | 1308 address InterpreterGenerator::generate_empty_entry() { |
1309 if (!UseFastEmptyMethods) | |
1310 return NULL; | |
1311 | |
1312 return generate_entry((address) CppInterpreter::empty_entry); | |
1313 } | |
1314 | |
1315 address InterpreterGenerator::generate_accessor_entry() { | |
1316 if (!UseFastAccessorMethods) | |
1317 return NULL; | |
1318 | |
1319 return generate_entry((address) CppInterpreter::accessor_entry); | |
1320 } | |
1321 | |
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1322 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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1323 #ifndef SERIALGC |
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1324 if (UseG1GC) { |
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1325 // We need to generate have a routine that generates code to: |
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1326 // * load the value in the referent field |
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1327 // * passes that value to the pre-barrier. |
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1328 // |
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1329 // In the case of G1 this will record the value of the |
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1330 // referent in an SATB buffer if marking is active. |
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1331 // This will cause concurrent marking to mark the referent |
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1332 // field as live. |
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1333 Unimplemented(); |
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1334 } |
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1335 #endif // SERIALGC |
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1336 |
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1337 // If G1 is not enabled then attempt to go through the accessor entry point |
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1338 // Reference.get is an accessor |
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1339 return generate_accessor_entry(); |
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1340 } |
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1341 |
1010 | 1342 address InterpreterGenerator::generate_native_entry(bool synchronized) { |
1343 assert(synchronized == false, "should be"); | |
1344 | |
1345 return generate_entry((address) CppInterpreter::native_entry); | |
1346 } | |
1347 | |
1348 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1349 assert(synchronized == false, "should be"); | |
1350 | |
1351 return generate_entry((address) CppInterpreter::normal_entry); | |
1352 } | |
1353 | |
1354 address AbstractInterpreterGenerator::generate_method_entry( | |
1355 AbstractInterpreter::MethodKind kind) { | |
1356 address entry_point = NULL; | |
1357 | |
1358 switch (kind) { | |
1359 case Interpreter::zerolocals: | |
1360 case Interpreter::zerolocals_synchronized: | |
1361 break; | |
1362 | |
1363 case Interpreter::native: | |
1364 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
1365 break; | |
1366 | |
1367 case Interpreter::native_synchronized: | |
1368 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
1369 break; | |
1370 | |
1371 case Interpreter::empty: | |
1372 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
1373 break; | |
1374 | |
1375 case Interpreter::accessor: | |
1376 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
1377 break; | |
1378 | |
1379 case Interpreter::abstract: | |
1380 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
1381 break; | |
1382 | |
1383 case Interpreter::method_handle: | |
1384 entry_point = ((InterpreterGenerator*) this)->generate_method_handle_entry(); | |
1385 break; | |
1386 | |
1387 case Interpreter::java_lang_math_sin: | |
1388 case Interpreter::java_lang_math_cos: | |
1389 case Interpreter::java_lang_math_tan: | |
1390 case Interpreter::java_lang_math_abs: | |
1391 case Interpreter::java_lang_math_log: | |
1392 case Interpreter::java_lang_math_log10: | |
1393 case Interpreter::java_lang_math_sqrt: | |
1394 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); | |
1395 break; | |
1396 | |
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1397 case Interpreter::java_lang_ref_reference_get: |
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1398 entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
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1399 break; |
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1400 |
1010 | 1401 default: |
1402 ShouldNotReachHere(); | |
1403 } | |
1404 | |
1405 if (entry_point == NULL) | |
1406 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
1407 | |
1408 return entry_point; | |
1409 } | |
1410 | |
1411 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
1412 : CppInterpreterGenerator(code) { | |
1413 generate_all(); | |
1414 } | |
1415 | |
1416 // Deoptimization helpers | |
1417 | |
1379 | 1418 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
1419 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
1420 | |
1010 | 1421 int size_in_words = size >> LogBytesPerWord; |
1422 assert(size_in_words * wordSize == size, "unaligned"); | |
1423 assert(size_in_words >= header_words, "too small"); | |
1379 | 1424 stack->overflow_check(size_in_words, CHECK_NULL); |
1010 | 1425 |
1426 stack->push(0); // next_frame, filled in later | |
1427 intptr_t *fp = stack->sp(); | |
1428 assert(fp - stack->sp() == next_frame_off, "should be"); | |
1429 | |
1430 stack->push(INTERPRETER_FRAME); | |
1431 assert(fp - stack->sp() == frame_type_off, "should be"); | |
1432 | |
1433 interpreterState istate = | |
1434 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
1435 assert(fp - stack->sp() == istate_off, "should be"); | |
1436 istate->set_self_link(NULL); // mark invalid | |
1437 | |
1438 stack->alloc((size_in_words - header_words) * wordSize); | |
1439 | |
1440 return (InterpreterFrame *) fp; | |
1441 } | |
1442 | |
1443 int AbstractInterpreter::layout_activation(methodOop method, | |
1444 int tempcount, | |
1445 int popframe_extra_args, | |
1446 int moncount, | |
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1447 int caller_actual_parameters, |
1010 | 1448 int callee_param_count, |
1449 int callee_locals, | |
1450 frame* caller, | |
1451 frame* interpreter_frame, | |
1452 bool is_top_frame) { | |
1453 assert(popframe_extra_args == 0, "what to do?"); | |
1454 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
1605 | 1455 "top frame should have no caller"); |
1010 | 1456 |
1457 // This code must exactly match what InterpreterFrame::build | |
1458 // does (the full InterpreterFrame::build, that is, not the | |
1459 // one that creates empty frames for the deoptimizer). | |
1460 // | |
1461 // If interpreter_frame is not NULL then it will be filled in. | |
1462 // It's size is determined by a previous call to this method, | |
1463 // so it should be correct. | |
1464 // | |
1465 // Note that tempcount is the current size of the expression | |
1466 // stack. For top most frames we will allocate a full sized | |
1467 // expression stack and not the trimmed version that non-top | |
1468 // frames have. | |
1469 | |
1470 int header_words = InterpreterFrame::header_words; | |
1471 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
1472 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
1473 int callee_extra_locals = callee_locals - callee_param_count; | |
1474 | |
1475 if (interpreter_frame) { | |
1505 | 1476 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
1010 | 1477 interpreterState istate = interpreter_frame->get_interpreterState(); |
1478 intptr_t *monitor_base = (intptr_t*) istate; | |
1479 intptr_t *stack_base = monitor_base - monitor_words; | |
1480 intptr_t *stack = stack_base - tempcount - 1; | |
1481 | |
1482 BytecodeInterpreter::layout_interpreterState(istate, | |
1483 caller, | |
1484 NULL, | |
1485 method, | |
1486 locals, | |
1487 stack, | |
1488 stack_base, | |
1489 monitor_base, | |
1490 NULL, | |
1491 is_top_frame); | |
1492 } | |
1493 return header_words + monitor_words + stack_words + callee_extra_locals; | |
1494 } | |
1495 | |
1496 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
1497 frame* caller, | |
1498 frame* current, | |
1499 methodOop method, | |
1500 intptr_t* locals, | |
1501 intptr_t* stack, | |
1502 intptr_t* stack_base, | |
1503 intptr_t* monitor_base, | |
1504 intptr_t* frame_bottom, | |
1505 bool is_top_frame) { | |
1506 istate->set_locals(locals); | |
1507 istate->set_method(method); | |
1508 istate->set_self_link(istate); | |
1509 istate->set_prev_link(NULL); | |
1510 // thread will be set by a hacky repurposing of frame::patch_pc() | |
1511 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
1512 istate->set_constants(method->constants()->cache()); | |
1513 istate->set_msg(BytecodeInterpreter::method_resume); | |
1514 istate->set_bcp_advance(0); | |
1515 istate->set_oop_temp(NULL); | |
1516 istate->set_mdx(NULL); | |
1517 if (caller->is_interpreted_frame()) { | |
1518 interpreterState prev = caller->get_interpreterState(); | |
1519 prev->set_callee(method); | |
1520 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
1521 prev->set_bcp_advance(5); | |
1522 else | |
1523 prev->set_bcp_advance(3); | |
1524 } | |
1525 istate->set_callee(NULL); | |
1526 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
1527 istate->set_stack_base(stack_base); | |
1528 istate->set_stack(stack); | |
1529 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
1530 } | |
1531 | |
1532 address CppInterpreter::return_entry(TosState state, int length) { | |
1533 ShouldNotCallThis(); | |
1534 } | |
1535 | |
1536 address CppInterpreter::deopt_entry(TosState state, int length) { | |
1537 return NULL; | |
1538 } | |
1539 | |
1540 // Helper for (runtime) stack overflow checks | |
1541 | |
1542 int AbstractInterpreter::size_top_interpreter_activation(methodOop method) { | |
1543 return 0; | |
1544 } | |
1545 | |
1546 // Helper for figuring out if frames are interpreter frames | |
1547 | |
1548 bool CppInterpreter::contains(address pc) { | |
1549 #ifdef PRODUCT | |
1550 ShouldNotCallThis(); | |
1551 #else | |
1552 return false; // make frame::print_value_on work | |
1553 #endif // !PRODUCT | |
1554 } | |
1555 | |
1556 // Result handlers and convertors | |
1557 | |
1558 address CppInterpreterGenerator::generate_result_handler_for( | |
1559 BasicType type) { | |
1560 assembler()->advance(1); | |
1561 return ShouldNotCallThisStub(); | |
1562 } | |
1563 | |
1564 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
1565 BasicType type) { | |
1566 assembler()->advance(1); | |
1567 return ShouldNotCallThisStub(); | |
1568 } | |
1569 | |
1570 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
1571 BasicType type) { | |
1572 assembler()->advance(1); | |
1573 return ShouldNotCallThisStub(); | |
1574 } | |
1575 | |
1576 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
1577 BasicType type) { | |
1578 assembler()->advance(1); | |
1579 return ShouldNotCallThisStub(); | |
1580 } | |
1581 | |
1582 #endif // CC_INTERP |