Mercurial > hg > truffle
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 7419:3c433d080bae
Merge
author | twisti |
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date | Fri, 14 Dec 2012 12:11:17 -0800 |
parents | 2cd5e15048e6 |
children | db9981fd3124 |
rev | line source |
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1010 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
2480 | 3 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. |
1010 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
1010 | 23 * |
24 */ | |
25 | |
1972 | 26 #include "precompiled.hpp" |
27 #include "asm/assembler.hpp" | |
28 #include "interpreter/bytecodeHistogram.hpp" | |
29 #include "interpreter/cppInterpreter.hpp" | |
30 #include "interpreter/interpreter.hpp" | |
31 #include "interpreter/interpreterGenerator.hpp" | |
32 #include "interpreter/interpreterRuntime.hpp" | |
33 #include "oops/arrayOop.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
1972 | 36 #include "oops/oop.inline.hpp" |
37 #include "prims/jvmtiExport.hpp" | |
38 #include "prims/jvmtiThreadState.hpp" | |
39 #include "runtime/arguments.hpp" | |
40 #include "runtime/deoptimization.hpp" | |
41 #include "runtime/frame.inline.hpp" | |
42 #include "runtime/interfaceSupport.hpp" | |
43 #include "runtime/sharedRuntime.hpp" | |
44 #include "runtime/stubRoutines.hpp" | |
45 #include "runtime/synchronizer.hpp" | |
46 #include "runtime/timer.hpp" | |
47 #include "runtime/vframeArray.hpp" | |
48 #include "stack_zero.inline.hpp" | |
49 #include "utilities/debug.hpp" | |
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 | |
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68 int CppInterpreter::normal_entry(Method* 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(); | |
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93 Method* method = istate->method(); |
1010 | 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) { | |
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117 Method* callee = istate->callee(); |
1010 | 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 } | |
183 else { | |
184 ShouldNotReachHere(); | |
185 } | |
186 } | |
187 | |
188 // Unwind the current frame | |
189 thread->pop_zero_frame(); | |
190 | |
191 // Pop our local variables | |
192 stack->set_sp(stack->sp() + method->max_locals()); | |
193 | |
194 // Push our result | |
195 for (int i = 0; i < result_slots; i++) | |
196 stack->push(result[-i]); | |
197 } | |
198 | |
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199 int CppInterpreter::native_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 200 // Make sure method is native and not abstract |
201 assert(method->is_native() && !method->is_abstract(), "should be"); | |
202 | |
203 JavaThread *thread = (JavaThread *) THREAD; | |
204 ZeroStack *stack = thread->zero_stack(); | |
205 | |
206 // Allocate and initialize our frame | |
1514 | 207 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 208 thread->push_zero_frame(frame); |
209 interpreterState istate = frame->interpreter_state(); | |
210 intptr_t *locals = istate->locals(); | |
211 | |
1078 | 212 // Update the invocation counter |
213 if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { | |
214 InvocationCounter *counter = method->invocation_counter(); | |
215 counter->increment(); | |
216 if (counter->reached_InvocationLimit()) { | |
217 CALL_VM_NOCHECK( | |
218 InterpreterRuntime::frequency_counter_overflow(thread, NULL)); | |
219 if (HAS_PENDING_EXCEPTION) | |
220 goto unwind_and_return; | |
221 } | |
222 } | |
223 | |
1010 | 224 // Lock if necessary |
225 BasicObjectLock *monitor; | |
226 monitor = NULL; | |
227 if (method->is_synchronized()) { | |
228 monitor = (BasicObjectLock*) istate->stack_base(); | |
229 oop lockee = monitor->obj(); | |
230 markOop disp = lockee->mark()->set_unlocked(); | |
231 | |
232 monitor->lock()->set_displaced_header(disp); | |
233 if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { | |
234 if (thread->is_lock_owned((address) disp->clear_lock_bits())) { | |
235 monitor->lock()->set_displaced_header(NULL); | |
236 } | |
237 else { | |
238 CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); | |
239 if (HAS_PENDING_EXCEPTION) | |
240 goto unwind_and_return; | |
241 } | |
242 } | |
243 } | |
244 | |
245 // Get the signature handler | |
246 InterpreterRuntime::SignatureHandler *handler; { | |
247 address handlerAddr = method->signature_handler(); | |
248 if (handlerAddr == NULL) { | |
249 CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); | |
250 if (HAS_PENDING_EXCEPTION) | |
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251 goto unlock_unwind_and_return; |
1010 | 252 |
253 handlerAddr = method->signature_handler(); | |
254 assert(handlerAddr != NULL, "eh?"); | |
255 } | |
256 if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { | |
257 CALL_VM_NOCHECK(handlerAddr = | |
258 InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); | |
259 if (HAS_PENDING_EXCEPTION) | |
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260 goto unlock_unwind_and_return; |
1010 | 261 } |
262 handler = \ | |
263 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
264 } | |
265 | |
266 // Get the native function entry point | |
267 address function; | |
268 function = method->native_function(); | |
269 assert(function != NULL, "should be set if signature handler is"); | |
270 | |
271 // Build the argument list | |
1379 | 272 stack->overflow_check(handler->argument_count() * 2, THREAD); |
273 if (HAS_PENDING_EXCEPTION) | |
274 goto unlock_unwind_and_return; | |
275 | |
1010 | 276 void **arguments; |
277 void *mirror; { | |
278 arguments = | |
279 (void **) stack->alloc(handler->argument_count() * sizeof(void **)); | |
280 void **dst = arguments; | |
281 | |
282 void *env = thread->jni_environment(); | |
283 *(dst++) = &env; | |
284 | |
285 if (method->is_static()) { | |
286 istate->set_oop_temp( | |
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287 method->constants()->pool_holder()->java_mirror()); |
1010 | 288 mirror = istate->oop_temp_addr(); |
289 *(dst++) = &mirror; | |
290 } | |
291 | |
292 intptr_t *src = locals; | |
293 for (int i = dst - arguments; i < handler->argument_count(); i++) { | |
294 ffi_type *type = handler->argument_type(i); | |
295 if (type == &ffi_type_pointer) { | |
296 if (*src) { | |
297 stack->push((intptr_t) src); | |
298 *(dst++) = stack->sp(); | |
299 } | |
300 else { | |
301 *(dst++) = src; | |
302 } | |
303 src--; | |
304 } | |
305 else if (type->size == 4) { | |
306 *(dst++) = src--; | |
307 } | |
308 else if (type->size == 8) { | |
309 src--; | |
310 *(dst++) = src--; | |
311 } | |
312 else { | |
313 ShouldNotReachHere(); | |
314 } | |
315 } | |
316 } | |
317 | |
318 // Set up the Java frame anchor | |
319 thread->set_last_Java_frame(); | |
320 | |
321 // Change the thread state to _thread_in_native | |
322 ThreadStateTransition::transition_from_java(thread, _thread_in_native); | |
323 | |
324 // Make the call | |
325 intptr_t result[4 - LogBytesPerWord]; | |
326 ffi_call(handler->cif(), (void (*)()) function, result, arguments); | |
327 | |
328 // Change the thread state back to _thread_in_Java. | |
329 // ThreadStateTransition::transition_from_native() cannot be used | |
330 // here because it does not check for asynchronous exceptions. | |
331 // We have to manage the transition ourself. | |
332 thread->set_thread_state(_thread_in_native_trans); | |
333 | |
334 // Make sure new state is visible in the GC thread | |
335 if (os::is_MP()) { | |
336 if (UseMembar) { | |
337 OrderAccess::fence(); | |
338 } | |
339 else { | |
340 InterfaceSupport::serialize_memory(thread); | |
341 } | |
342 } | |
343 | |
344 // Handle safepoint operations, pending suspend requests, | |
345 // and pending asynchronous exceptions. | |
346 if (SafepointSynchronize::do_call_back() || | |
347 thread->has_special_condition_for_native_trans()) { | |
348 JavaThread::check_special_condition_for_native_trans(thread); | |
349 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); | |
350 } | |
351 | |
352 // Finally we can change the thread state to _thread_in_Java. | |
353 thread->set_thread_state(_thread_in_Java); | |
354 fixup_after_potential_safepoint(); | |
355 | |
356 // Clear the frame anchor | |
357 thread->reset_last_Java_frame(); | |
358 | |
359 // If the result was an oop then unbox it and store it in | |
360 // oop_temp where the garbage collector can see it before | |
361 // we release the handle it might be protected by. | |
362 if (handler->result_type() == &ffi_type_pointer) { | |
363 if (result[0]) | |
364 istate->set_oop_temp(*(oop *) result[0]); | |
365 else | |
366 istate->set_oop_temp(NULL); | |
367 } | |
368 | |
369 // Reset handle block | |
370 thread->active_handles()->clear(); | |
371 | |
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372 unlock_unwind_and_return: |
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373 |
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374 // Unlock if necessary |
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375 if (monitor) { |
1010 | 376 BasicLock *lock = monitor->lock(); |
377 markOop header = lock->displaced_header(); | |
378 oop rcvr = monitor->obj(); | |
379 monitor->set_obj(NULL); | |
380 | |
381 if (header != NULL) { | |
382 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { | |
383 monitor->set_obj(rcvr); { | |
384 HandleMark hm(thread); | |
385 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); | |
386 } | |
387 } | |
388 } | |
389 } | |
390 | |
391 unwind_and_return: | |
392 | |
393 // Unwind the current activation | |
394 thread->pop_zero_frame(); | |
395 | |
396 // Pop our parameters | |
397 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
398 | |
399 // Push our result | |
400 if (!HAS_PENDING_EXCEPTION) { | |
1256 | 401 BasicType type = result_type_of(method); |
402 stack->set_sp(stack->sp() - type2size[type]); | |
1010 | 403 |
1256 | 404 switch (type) { |
1010 | 405 case T_VOID: |
406 break; | |
407 | |
408 case T_BOOLEAN: | |
409 #ifndef VM_LITTLE_ENDIAN | |
410 result[0] <<= (BitsPerWord - BitsPerByte); | |
411 #endif | |
412 SET_LOCALS_INT(*(jboolean *) result != 0, 0); | |
413 break; | |
414 | |
415 case T_CHAR: | |
416 #ifndef VM_LITTLE_ENDIAN | |
417 result[0] <<= (BitsPerWord - BitsPerShort); | |
418 #endif | |
419 SET_LOCALS_INT(*(jchar *) result, 0); | |
420 break; | |
421 | |
422 case T_BYTE: | |
423 #ifndef VM_LITTLE_ENDIAN | |
424 result[0] <<= (BitsPerWord - BitsPerByte); | |
425 #endif | |
426 SET_LOCALS_INT(*(jbyte *) result, 0); | |
427 break; | |
428 | |
429 case T_SHORT: | |
430 #ifndef VM_LITTLE_ENDIAN | |
431 result[0] <<= (BitsPerWord - BitsPerShort); | |
432 #endif | |
433 SET_LOCALS_INT(*(jshort *) result, 0); | |
434 break; | |
435 | |
436 case T_INT: | |
437 #ifndef VM_LITTLE_ENDIAN | |
438 result[0] <<= (BitsPerWord - BitsPerInt); | |
439 #endif | |
440 SET_LOCALS_INT(*(jint *) result, 0); | |
441 break; | |
442 | |
443 case T_LONG: | |
444 SET_LOCALS_LONG(*(jlong *) result, 0); | |
445 break; | |
446 | |
447 case T_FLOAT: | |
448 SET_LOCALS_FLOAT(*(jfloat *) result, 0); | |
449 break; | |
450 | |
451 case T_DOUBLE: | |
452 SET_LOCALS_DOUBLE(*(jdouble *) result, 0); | |
453 break; | |
454 | |
455 case T_OBJECT: | |
456 case T_ARRAY: | |
457 SET_LOCALS_OBJECT(istate->oop_temp(), 0); | |
458 break; | |
459 | |
460 default: | |
461 ShouldNotReachHere(); | |
462 } | |
463 } | |
1514 | 464 |
465 // No deoptimized frames on the stack | |
466 return 0; | |
1010 | 467 } |
468 | |
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469 int CppInterpreter::accessor_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 470 JavaThread *thread = (JavaThread *) THREAD; |
471 ZeroStack *stack = thread->zero_stack(); | |
472 intptr_t *locals = stack->sp(); | |
473 | |
474 // Drop into the slow path if we need a safepoint check | |
475 if (SafepointSynchronize::do_call_back()) { | |
1514 | 476 return normal_entry(method, 0, THREAD); |
1010 | 477 } |
478 | |
479 // Load the object pointer and drop into the slow path | |
480 // if we have a NullPointerException | |
481 oop object = LOCALS_OBJECT(0); | |
482 if (object == NULL) { | |
1514 | 483 return normal_entry(method, 0, THREAD); |
1010 | 484 } |
485 | |
486 // Read the field index from the bytecode, which looks like this: | |
487 // 0: aload_0 | |
488 // 1: getfield | |
489 // 2: index | |
490 // 3: index | |
491 // 4: ireturn/areturn | |
492 // NB this is not raw bytecode: index is in machine order | |
493 u1 *code = method->code_base(); | |
494 assert(code[0] == Bytecodes::_aload_0 && | |
495 code[1] == Bytecodes::_getfield && | |
496 (code[4] == Bytecodes::_ireturn || | |
497 code[4] == Bytecodes::_areturn), "should do"); | |
498 u2 index = Bytes::get_native_u2(&code[2]); | |
499 | |
500 // Get the entry from the constant pool cache, and drop into | |
501 // the slow path if it has not been resolved | |
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502 ConstantPoolCache* cache = method->constants()->cache(); |
1010 | 503 ConstantPoolCacheEntry* entry = cache->entry_at(index); |
504 if (!entry->is_resolved(Bytecodes::_getfield)) { | |
1514 | 505 return normal_entry(method, 0, THREAD); |
1010 | 506 } |
507 | |
508 // Get the result and push it onto the stack | |
509 switch (entry->flag_state()) { | |
510 case ltos: | |
511 case dtos: | |
1514 | 512 stack->overflow_check(1, CHECK_0); |
1010 | 513 stack->alloc(wordSize); |
514 break; | |
515 } | |
516 if (entry->is_volatile()) { | |
517 switch (entry->flag_state()) { | |
518 case ctos: | |
6926 | 519 SET_LOCALS_INT(object->char_field_acquire(entry->f2_as_index()), 0); |
1010 | 520 break; |
521 | |
522 case btos: | |
6926 | 523 SET_LOCALS_INT(object->byte_field_acquire(entry->f2_as_index()), 0); |
1010 | 524 break; |
525 | |
526 case stos: | |
6926 | 527 SET_LOCALS_INT(object->short_field_acquire(entry->f2_as_index()), 0); |
1010 | 528 break; |
529 | |
530 case itos: | |
6926 | 531 SET_LOCALS_INT(object->int_field_acquire(entry->f2_as_index()), 0); |
1010 | 532 break; |
533 | |
534 case ltos: | |
6926 | 535 SET_LOCALS_LONG(object->long_field_acquire(entry->f2_as_index()), 0); |
1010 | 536 break; |
537 | |
538 case ftos: | |
6926 | 539 SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2_as_index()), 0); |
1010 | 540 break; |
541 | |
542 case dtos: | |
6926 | 543 SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2_as_index()), 0); |
1010 | 544 break; |
545 | |
546 case atos: | |
6926 | 547 SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2_as_index()), 0); |
1010 | 548 break; |
549 | |
550 default: | |
551 ShouldNotReachHere(); | |
552 } | |
553 } | |
554 else { | |
555 switch (entry->flag_state()) { | |
556 case ctos: | |
6926 | 557 SET_LOCALS_INT(object->char_field(entry->f2_as_index()), 0); |
1010 | 558 break; |
559 | |
560 case btos: | |
6926 | 561 SET_LOCALS_INT(object->byte_field(entry->f2_as_index()), 0); |
1010 | 562 break; |
563 | |
564 case stos: | |
6926 | 565 SET_LOCALS_INT(object->short_field(entry->f2_as_index()), 0); |
1010 | 566 break; |
567 | |
568 case itos: | |
6926 | 569 SET_LOCALS_INT(object->int_field(entry->f2_as_index()), 0); |
1010 | 570 break; |
571 | |
572 case ltos: | |
6926 | 573 SET_LOCALS_LONG(object->long_field(entry->f2_as_index()), 0); |
1010 | 574 break; |
575 | |
576 case ftos: | |
6926 | 577 SET_LOCALS_FLOAT(object->float_field(entry->f2_as_index()), 0); |
1010 | 578 break; |
579 | |
580 case dtos: | |
6926 | 581 SET_LOCALS_DOUBLE(object->double_field(entry->f2_as_index()), 0); |
1010 | 582 break; |
583 | |
584 case atos: | |
6926 | 585 SET_LOCALS_OBJECT(object->obj_field(entry->f2_as_index()), 0); |
1010 | 586 break; |
587 | |
588 default: | |
589 ShouldNotReachHere(); | |
590 } | |
591 } | |
1514 | 592 |
593 // No deoptimized frames on the stack | |
594 return 0; | |
1010 | 595 } |
596 | |
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597 int CppInterpreter::empty_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 598 JavaThread *thread = (JavaThread *) THREAD; |
599 ZeroStack *stack = thread->zero_stack(); | |
600 | |
601 // Drop into the slow path if we need a safepoint check | |
602 if (SafepointSynchronize::do_call_back()) { | |
1514 | 603 return normal_entry(method, 0, THREAD); |
1010 | 604 } |
605 | |
606 // Pop our parameters | |
607 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
1514 | 608 |
609 // No deoptimized frames on the stack | |
610 return 0; | |
1010 | 611 } |
612 | |
2480 | 613 // The new slots will be inserted before slot insert_before. |
614 // Slots < insert_before will have the same slot number after the insert. | |
615 // Slots >= insert_before will become old_slot + num_slots. | |
616 void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { | |
617 JavaThread *thread = (JavaThread *) THREAD; | |
618 ZeroStack *stack = thread->zero_stack(); | |
619 | |
620 // Allocate the space | |
621 stack->overflow_check(num_slots, CHECK); | |
622 stack->alloc(num_slots * wordSize); | |
623 intptr_t *vmslots = stack->sp(); | |
624 | |
625 // Shuffle everything up | |
626 for (int i = 0; i < insert_before; i++) | |
627 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); | |
628 } | |
629 | |
630 void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { | |
631 JavaThread *thread = (JavaThread *) THREAD; | |
632 ZeroStack *stack = thread->zero_stack(); | |
633 intptr_t *vmslots = stack->sp(); | |
634 | |
635 // Move everything down | |
636 for (int i = first_slot - 1; i >= 0; i--) | |
637 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); | |
638 | |
639 // Deallocate the space | |
640 stack->set_sp(stack->sp() + num_slots); | |
641 } | |
642 | |
643 BasicType CppInterpreter::result_type_of_handle(oop method_handle) { | |
644 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
645 oop return_type = java_lang_invoke_MethodType::rtype(method_type); | |
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646 return java_lang_Class::as_BasicType(return_type, (Klass* *) NULL); |
2480 | 647 } |
648 | |
649 intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, | |
650 oop method_handle) { | |
651 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
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652 int argument_slots = java_lang_invoke_MethodType::ptype_slot_count(method_type); |
2480 | 653 |
654 return stack->sp() + argument_slots; | |
655 } | |
656 | |
657 IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, | |
658 Symbol* name, | |
659 char* message)) | |
660 THROW_MSG(name, message); | |
661 IRT_END | |
662 | |
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663 InterpreterFrame *InterpreterFrame::build(Method* const method, TRAPS) { |
1379 | 664 JavaThread *thread = (JavaThread *) THREAD; |
665 ZeroStack *stack = thread->zero_stack(); | |
666 | |
667 // Calculate the size of the frame we'll build, including | |
668 // any adjustments to the caller's frame that we'll make. | |
669 int extra_locals = 0; | |
670 int monitor_words = 0; | |
671 int stack_words = 0; | |
1010 | 672 |
1379 | 673 if (!method->is_native()) { |
674 extra_locals = method->max_locals() - method->size_of_parameters(); | |
675 stack_words = method->max_stack(); | |
1010 | 676 } |
1379 | 677 if (method->is_synchronized()) { |
678 monitor_words = frame::interpreter_frame_monitor_size(); | |
679 } | |
680 stack->overflow_check( | |
681 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
1010 | 682 |
1379 | 683 // Adjust the caller's stack frame to accomodate any additional |
684 // local variables we have contiguously with our parameters. | |
685 for (int i = 0; i < extra_locals; i++) | |
686 stack->push(0); | |
1010 | 687 |
688 intptr_t *locals; | |
689 if (method->is_native()) | |
690 locals = stack->sp() + (method->size_of_parameters() - 1); | |
691 else | |
692 locals = stack->sp() + (method->max_locals() - 1); | |
693 | |
694 stack->push(0); // next_frame, filled in later | |
695 intptr_t *fp = stack->sp(); | |
696 assert(fp - stack->sp() == next_frame_off, "should be"); | |
697 | |
698 stack->push(INTERPRETER_FRAME); | |
699 assert(fp - stack->sp() == frame_type_off, "should be"); | |
700 | |
701 interpreterState istate = | |
702 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
703 assert(fp - stack->sp() == istate_off, "should be"); | |
704 | |
705 istate->set_locals(locals); | |
706 istate->set_method(method); | |
707 istate->set_self_link(istate); | |
708 istate->set_prev_link(NULL); | |
709 istate->set_thread(thread); | |
710 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
711 istate->set_constants(method->constants()->cache()); | |
712 istate->set_msg(BytecodeInterpreter::method_entry); | |
713 istate->set_oop_temp(NULL); | |
714 istate->set_mdx(NULL); | |
715 istate->set_callee(NULL); | |
716 | |
717 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
718 if (method->is_synchronized()) { | |
719 BasicObjectLock *monitor = | |
720 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
721 oop object; | |
722 if (method->is_static()) | |
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723 object = method->constants()->pool_holder()->java_mirror(); |
1010 | 724 else |
725 object = (oop) locals[0]; | |
726 monitor->set_obj(object); | |
727 } | |
728 | |
729 istate->set_stack_base(stack->sp()); | |
730 istate->set_stack(stack->sp() - 1); | |
731 if (stack_words) | |
732 stack->alloc(stack_words * wordSize); | |
733 istate->set_stack_limit(stack->sp() - 1); | |
734 | |
735 return (InterpreterFrame *) fp; | |
736 } | |
737 | |
738 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
739 int i = 0; | |
740 switch (type) { | |
741 case T_BOOLEAN: i = 0; break; | |
742 case T_CHAR : i = 1; break; | |
743 case T_BYTE : i = 2; break; | |
744 case T_SHORT : i = 3; break; | |
745 case T_INT : i = 4; break; | |
746 case T_LONG : i = 5; break; | |
747 case T_VOID : i = 6; break; | |
748 case T_FLOAT : i = 7; break; | |
749 case T_DOUBLE : i = 8; break; | |
750 case T_OBJECT : i = 9; break; | |
751 case T_ARRAY : i = 9; break; | |
752 default : ShouldNotReachHere(); | |
753 } | |
754 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
755 "index out of bounds"); | |
756 return i; | |
757 } | |
758 | |
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759 BasicType CppInterpreter::result_type_of(Method* method) { |
1256 | 760 BasicType t; |
761 switch (method->result_index()) { | |
762 case 0 : t = T_BOOLEAN; break; | |
763 case 1 : t = T_CHAR; break; | |
764 case 2 : t = T_BYTE; break; | |
765 case 3 : t = T_SHORT; break; | |
766 case 4 : t = T_INT; break; | |
767 case 5 : t = T_LONG; break; | |
768 case 6 : t = T_VOID; break; | |
769 case 7 : t = T_FLOAT; break; | |
770 case 8 : t = T_DOUBLE; break; | |
771 case 9 : t = T_OBJECT; break; | |
772 default: ShouldNotReachHere(); | |
773 } | |
774 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
775 "out of step with AbstractInterpreter::BasicType_as_index"); | |
776 return t; | |
777 } | |
778 | |
1010 | 779 address InterpreterGenerator::generate_empty_entry() { |
780 if (!UseFastEmptyMethods) | |
781 return NULL; | |
782 | |
783 return generate_entry((address) CppInterpreter::empty_entry); | |
784 } | |
785 | |
786 address InterpreterGenerator::generate_accessor_entry() { | |
787 if (!UseFastAccessorMethods) | |
788 return NULL; | |
789 | |
790 return generate_entry((address) CppInterpreter::accessor_entry); | |
791 } | |
792 | |
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793 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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794 #ifndef SERIALGC |
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795 if (UseG1GC) { |
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796 // We need to generate have a routine that generates code to: |
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797 // * load the value in the referent field |
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798 // * passes that value to the pre-barrier. |
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799 // |
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800 // In the case of G1 this will record the value of the |
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801 // referent in an SATB buffer if marking is active. |
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802 // This will cause concurrent marking to mark the referent |
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803 // field as live. |
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804 Unimplemented(); |
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805 } |
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806 #endif // SERIALGC |
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807 |
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808 // If G1 is not enabled then attempt to go through the accessor entry point |
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809 // Reference.get is an accessor |
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810 return generate_accessor_entry(); |
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811 } |
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812 |
1010 | 813 address InterpreterGenerator::generate_native_entry(bool synchronized) { |
814 assert(synchronized == false, "should be"); | |
815 | |
816 return generate_entry((address) CppInterpreter::native_entry); | |
817 } | |
818 | |
819 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
820 assert(synchronized == false, "should be"); | |
821 | |
822 return generate_entry((address) CppInterpreter::normal_entry); | |
823 } | |
824 | |
825 address AbstractInterpreterGenerator::generate_method_entry( | |
826 AbstractInterpreter::MethodKind kind) { | |
827 address entry_point = NULL; | |
828 | |
829 switch (kind) { | |
830 case Interpreter::zerolocals: | |
831 case Interpreter::zerolocals_synchronized: | |
832 break; | |
833 | |
834 case Interpreter::native: | |
835 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
836 break; | |
837 | |
838 case Interpreter::native_synchronized: | |
839 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
840 break; | |
841 | |
842 case Interpreter::empty: | |
843 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
844 break; | |
845 | |
846 case Interpreter::accessor: | |
847 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
848 break; | |
849 | |
850 case Interpreter::abstract: | |
851 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
852 break; | |
853 | |
854 case Interpreter::java_lang_math_sin: | |
855 case Interpreter::java_lang_math_cos: | |
856 case Interpreter::java_lang_math_tan: | |
857 case Interpreter::java_lang_math_abs: | |
858 case Interpreter::java_lang_math_log: | |
859 case Interpreter::java_lang_math_log10: | |
860 case Interpreter::java_lang_math_sqrt: | |
6926 | 861 case Interpreter::java_lang_math_pow: |
862 case Interpreter::java_lang_math_exp: | |
1010 | 863 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); |
864 break; | |
865 | |
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866 case Interpreter::java_lang_ref_reference_get: |
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867 entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
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868 break; |
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869 |
1010 | 870 default: |
871 ShouldNotReachHere(); | |
872 } | |
873 | |
874 if (entry_point == NULL) | |
875 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
876 | |
877 return entry_point; | |
878 } | |
879 | |
880 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
881 : CppInterpreterGenerator(code) { | |
882 generate_all(); | |
883 } | |
884 | |
885 // Deoptimization helpers | |
886 | |
1379 | 887 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
888 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
889 | |
1010 | 890 int size_in_words = size >> LogBytesPerWord; |
891 assert(size_in_words * wordSize == size, "unaligned"); | |
892 assert(size_in_words >= header_words, "too small"); | |
1379 | 893 stack->overflow_check(size_in_words, CHECK_NULL); |
1010 | 894 |
895 stack->push(0); // next_frame, filled in later | |
896 intptr_t *fp = stack->sp(); | |
897 assert(fp - stack->sp() == next_frame_off, "should be"); | |
898 | |
899 stack->push(INTERPRETER_FRAME); | |
900 assert(fp - stack->sp() == frame_type_off, "should be"); | |
901 | |
902 interpreterState istate = | |
903 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
904 assert(fp - stack->sp() == istate_off, "should be"); | |
905 istate->set_self_link(NULL); // mark invalid | |
906 | |
907 stack->alloc((size_in_words - header_words) * wordSize); | |
908 | |
909 return (InterpreterFrame *) fp; | |
910 } | |
911 | |
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912 int AbstractInterpreter::layout_activation(Method* method, |
1010 | 913 int tempcount, |
914 int popframe_extra_args, | |
915 int moncount, | |
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916 int caller_actual_parameters, |
1010 | 917 int callee_param_count, |
918 int callee_locals, | |
919 frame* caller, | |
920 frame* interpreter_frame, | |
921 bool is_top_frame) { | |
922 assert(popframe_extra_args == 0, "what to do?"); | |
923 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
1605 | 924 "top frame should have no caller"); |
1010 | 925 |
926 // This code must exactly match what InterpreterFrame::build | |
927 // does (the full InterpreterFrame::build, that is, not the | |
928 // one that creates empty frames for the deoptimizer). | |
929 // | |
930 // If interpreter_frame is not NULL then it will be filled in. | |
931 // It's size is determined by a previous call to this method, | |
932 // so it should be correct. | |
933 // | |
934 // Note that tempcount is the current size of the expression | |
935 // stack. For top most frames we will allocate a full sized | |
936 // expression stack and not the trimmed version that non-top | |
937 // frames have. | |
938 | |
939 int header_words = InterpreterFrame::header_words; | |
940 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
941 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
942 int callee_extra_locals = callee_locals - callee_param_count; | |
943 | |
944 if (interpreter_frame) { | |
1505 | 945 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
1010 | 946 interpreterState istate = interpreter_frame->get_interpreterState(); |
947 intptr_t *monitor_base = (intptr_t*) istate; | |
948 intptr_t *stack_base = monitor_base - monitor_words; | |
949 intptr_t *stack = stack_base - tempcount - 1; | |
950 | |
951 BytecodeInterpreter::layout_interpreterState(istate, | |
952 caller, | |
953 NULL, | |
954 method, | |
955 locals, | |
956 stack, | |
957 stack_base, | |
958 monitor_base, | |
959 NULL, | |
960 is_top_frame); | |
961 } | |
962 return header_words + monitor_words + stack_words + callee_extra_locals; | |
963 } | |
964 | |
965 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
966 frame* caller, | |
967 frame* current, | |
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968 Method* method, |
1010 | 969 intptr_t* locals, |
970 intptr_t* stack, | |
971 intptr_t* stack_base, | |
972 intptr_t* monitor_base, | |
973 intptr_t* frame_bottom, | |
974 bool is_top_frame) { | |
975 istate->set_locals(locals); | |
976 istate->set_method(method); | |
977 istate->set_self_link(istate); | |
978 istate->set_prev_link(NULL); | |
979 // thread will be set by a hacky repurposing of frame::patch_pc() | |
980 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
981 istate->set_constants(method->constants()->cache()); | |
982 istate->set_msg(BytecodeInterpreter::method_resume); | |
983 istate->set_bcp_advance(0); | |
984 istate->set_oop_temp(NULL); | |
985 istate->set_mdx(NULL); | |
986 if (caller->is_interpreted_frame()) { | |
987 interpreterState prev = caller->get_interpreterState(); | |
988 prev->set_callee(method); | |
989 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
990 prev->set_bcp_advance(5); | |
991 else | |
992 prev->set_bcp_advance(3); | |
993 } | |
994 istate->set_callee(NULL); | |
995 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
996 istate->set_stack_base(stack_base); | |
997 istate->set_stack(stack); | |
998 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
999 } | |
1000 | |
1001 address CppInterpreter::return_entry(TosState state, int length) { | |
1002 ShouldNotCallThis(); | |
1003 } | |
1004 | |
1005 address CppInterpreter::deopt_entry(TosState state, int length) { | |
1006 return NULL; | |
1007 } | |
1008 | |
1009 // Helper for (runtime) stack overflow checks | |
1010 | |
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1011 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
1010 | 1012 return 0; |
1013 } | |
1014 | |
1015 // Helper for figuring out if frames are interpreter frames | |
1016 | |
1017 bool CppInterpreter::contains(address pc) { | |
1018 return false; // make frame::print_value_on work | |
1019 } | |
1020 | |
1021 // Result handlers and convertors | |
1022 | |
1023 address CppInterpreterGenerator::generate_result_handler_for( | |
1024 BasicType type) { | |
1025 assembler()->advance(1); | |
1026 return ShouldNotCallThisStub(); | |
1027 } | |
1028 | |
1029 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
1030 BasicType type) { | |
1031 assembler()->advance(1); | |
1032 return ShouldNotCallThisStub(); | |
1033 } | |
1034 | |
1035 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
1036 BasicType type) { | |
1037 assembler()->advance(1); | |
1038 return ShouldNotCallThisStub(); | |
1039 } | |
1040 | |
1041 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
1042 BasicType type) { | |
1043 assembler()->advance(1); | |
1044 return ShouldNotCallThisStub(); | |
1045 } | |
1046 | |
1047 #endif // CC_INTERP |