Mercurial > hg > truffle
annotate src/cpu/zero/vm/cppInterpreter_zero.cpp @ 13434:a150ff9e8efc
Merge
author | hseigel |
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date | Fri, 06 Dec 2013 11:49:50 -0500 |
parents | bd3237e0e18d |
children | de6a9e811145 2b8e28fdf503 |
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" | |
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50 #include "utilities/macros.hpp" |
1972 | 51 #ifdef SHARK |
52 #include "shark/shark_globals.hpp" | |
53 #endif | |
1010 | 54 |
55 #ifdef CC_INTERP | |
56 | |
57 #define fixup_after_potential_safepoint() \ | |
58 method = istate->method() | |
59 | |
2480 | 60 #define CALL_VM_NOCHECK_NOFIX(func) \ |
1010 | 61 thread->set_last_Java_frame(); \ |
62 func; \ | |
2480 | 63 thread->reset_last_Java_frame(); |
64 | |
65 #define CALL_VM_NOCHECK(func) \ | |
66 CALL_VM_NOCHECK_NOFIX(func) \ | |
1010 | 67 fixup_after_potential_safepoint() |
68 | |
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69 int CppInterpreter::normal_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 70 JavaThread *thread = (JavaThread *) THREAD; |
71 | |
72 // Allocate and initialize our frame. | |
1514 | 73 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 74 thread->push_zero_frame(frame); |
75 | |
76 // Execute those bytecodes! | |
77 main_loop(0, THREAD); | |
1514 | 78 |
79 // No deoptimized frames on the stack | |
80 return 0; | |
1010 | 81 } |
82 | |
83 void CppInterpreter::main_loop(int recurse, TRAPS) { | |
84 JavaThread *thread = (JavaThread *) THREAD; | |
85 ZeroStack *stack = thread->zero_stack(); | |
86 | |
87 // If we are entering from a deopt we may need to call | |
88 // ourself a few times in order to get to our frame. | |
89 if (recurse) | |
90 main_loop(recurse - 1, THREAD); | |
91 | |
92 InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); | |
93 interpreterState istate = frame->interpreter_state(); | |
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94 Method* method = istate->method(); |
1010 | 95 |
96 intptr_t *result = NULL; | |
97 int result_slots = 0; | |
98 | |
99 while (true) { | |
100 // We can set up the frame anchor with everything we want at | |
101 // this point as we are thread_in_Java and no safepoints can | |
102 // occur until we go to vm mode. We do have to clear flags | |
103 // on return from vm but that is it. | |
104 thread->set_last_Java_frame(); | |
105 | |
106 // Call the interpreter | |
107 if (JvmtiExport::can_post_interpreter_events()) | |
108 BytecodeInterpreter::runWithChecks(istate); | |
109 else | |
110 BytecodeInterpreter::run(istate); | |
111 fixup_after_potential_safepoint(); | |
112 | |
113 // Clear the frame anchor | |
114 thread->reset_last_Java_frame(); | |
115 | |
116 // Examine the message from the interpreter to decide what to do | |
117 if (istate->msg() == BytecodeInterpreter::call_method) { | |
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118 Method* callee = istate->callee(); |
1010 | 119 |
120 // Trim back the stack to put the parameters at the top | |
121 stack->set_sp(istate->stack() + 1); | |
122 | |
123 // Make the call | |
124 Interpreter::invoke_method(callee, istate->callee_entry_point(), THREAD); | |
125 fixup_after_potential_safepoint(); | |
126 | |
127 // Convert the result | |
128 istate->set_stack(stack->sp() - 1); | |
129 | |
130 // Restore the stack | |
131 stack->set_sp(istate->stack_limit() + 1); | |
132 | |
133 // Resume the interpreter | |
134 istate->set_msg(BytecodeInterpreter::method_resume); | |
135 } | |
136 else if (istate->msg() == BytecodeInterpreter::more_monitors) { | |
137 int monitor_words = frame::interpreter_frame_monitor_size(); | |
138 | |
139 // Allocate the space | |
1379 | 140 stack->overflow_check(monitor_words, THREAD); |
141 if (HAS_PENDING_EXCEPTION) | |
142 break; | |
1010 | 143 stack->alloc(monitor_words * wordSize); |
144 | |
145 // Move the expression stack contents | |
146 for (intptr_t *p = istate->stack() + 1; p < istate->stack_base(); p++) | |
147 *(p - monitor_words) = *p; | |
148 | |
149 // Move the expression stack pointers | |
150 istate->set_stack_limit(istate->stack_limit() - monitor_words); | |
151 istate->set_stack(istate->stack() - monitor_words); | |
152 istate->set_stack_base(istate->stack_base() - monitor_words); | |
153 | |
154 // Zero the new monitor so the interpreter can find it. | |
155 ((BasicObjectLock *) istate->stack_base())->set_obj(NULL); | |
156 | |
157 // Resume the interpreter | |
158 istate->set_msg(BytecodeInterpreter::got_monitors); | |
159 } | |
160 else if (istate->msg() == BytecodeInterpreter::return_from_method) { | |
161 // Copy the result into the caller's frame | |
1256 | 162 result_slots = type2size[result_type_of(method)]; |
1010 | 163 assert(result_slots >= 0 && result_slots <= 2, "what?"); |
164 result = istate->stack() + result_slots; | |
165 break; | |
166 } | |
167 else if (istate->msg() == BytecodeInterpreter::throwing_exception) { | |
168 assert(HAS_PENDING_EXCEPTION, "should do"); | |
169 break; | |
170 } | |
171 else if (istate->msg() == BytecodeInterpreter::do_osr) { | |
172 // Unwind the current frame | |
173 thread->pop_zero_frame(); | |
174 | |
175 // Remove any extension of the previous frame | |
176 int extra_locals = method->max_locals() - method->size_of_parameters(); | |
177 stack->set_sp(stack->sp() + extra_locals); | |
178 | |
179 // Jump into the OSR method | |
180 Interpreter::invoke_osr( | |
181 method, istate->osr_entry(), istate->osr_buf(), THREAD); | |
182 return; | |
183 } | |
184 else { | |
185 ShouldNotReachHere(); | |
186 } | |
187 } | |
188 | |
189 // Unwind the current frame | |
190 thread->pop_zero_frame(); | |
191 | |
192 // Pop our local variables | |
193 stack->set_sp(stack->sp() + method->max_locals()); | |
194 | |
195 // Push our result | |
196 for (int i = 0; i < result_slots; i++) | |
197 stack->push(result[-i]); | |
198 } | |
199 | |
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200 int CppInterpreter::native_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 201 // Make sure method is native and not abstract |
202 assert(method->is_native() && !method->is_abstract(), "should be"); | |
203 | |
204 JavaThread *thread = (JavaThread *) THREAD; | |
205 ZeroStack *stack = thread->zero_stack(); | |
206 | |
207 // Allocate and initialize our frame | |
1514 | 208 InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
1010 | 209 thread->push_zero_frame(frame); |
210 interpreterState istate = frame->interpreter_state(); | |
211 intptr_t *locals = istate->locals(); | |
212 | |
1078 | 213 // Update the invocation counter |
214 if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { | |
10233 | 215 MethodCounters* mcs = method->method_counters(); |
216 if (mcs == NULL) { | |
217 CALL_VM_NOCHECK(mcs = InterpreterRuntime::build_method_counters(thread, method)); | |
218 if (HAS_PENDING_EXCEPTION) | |
219 goto unwind_and_return; | |
220 } | |
221 InvocationCounter *counter = mcs->invocation_counter(); | |
1078 | 222 counter->increment(); |
223 if (counter->reached_InvocationLimit()) { | |
224 CALL_VM_NOCHECK( | |
225 InterpreterRuntime::frequency_counter_overflow(thread, NULL)); | |
226 if (HAS_PENDING_EXCEPTION) | |
227 goto unwind_and_return; | |
228 } | |
229 } | |
230 | |
1010 | 231 // Lock if necessary |
232 BasicObjectLock *monitor; | |
233 monitor = NULL; | |
234 if (method->is_synchronized()) { | |
235 monitor = (BasicObjectLock*) istate->stack_base(); | |
236 oop lockee = monitor->obj(); | |
237 markOop disp = lockee->mark()->set_unlocked(); | |
238 | |
239 monitor->lock()->set_displaced_header(disp); | |
240 if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { | |
241 if (thread->is_lock_owned((address) disp->clear_lock_bits())) { | |
242 monitor->lock()->set_displaced_header(NULL); | |
243 } | |
244 else { | |
245 CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); | |
246 if (HAS_PENDING_EXCEPTION) | |
247 goto unwind_and_return; | |
248 } | |
249 } | |
250 } | |
251 | |
252 // Get the signature handler | |
253 InterpreterRuntime::SignatureHandler *handler; { | |
254 address handlerAddr = method->signature_handler(); | |
255 if (handlerAddr == NULL) { | |
256 CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); | |
257 if (HAS_PENDING_EXCEPTION) | |
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258 goto unlock_unwind_and_return; |
1010 | 259 |
260 handlerAddr = method->signature_handler(); | |
261 assert(handlerAddr != NULL, "eh?"); | |
262 } | |
263 if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { | |
264 CALL_VM_NOCHECK(handlerAddr = | |
265 InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); | |
266 if (HAS_PENDING_EXCEPTION) | |
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267 goto unlock_unwind_and_return; |
1010 | 268 } |
269 handler = \ | |
270 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
271 } | |
272 | |
273 // Get the native function entry point | |
274 address function; | |
275 function = method->native_function(); | |
276 assert(function != NULL, "should be set if signature handler is"); | |
277 | |
278 // Build the argument list | |
1379 | 279 stack->overflow_check(handler->argument_count() * 2, THREAD); |
280 if (HAS_PENDING_EXCEPTION) | |
281 goto unlock_unwind_and_return; | |
282 | |
1010 | 283 void **arguments; |
284 void *mirror; { | |
285 arguments = | |
286 (void **) stack->alloc(handler->argument_count() * sizeof(void **)); | |
287 void **dst = arguments; | |
288 | |
289 void *env = thread->jni_environment(); | |
290 *(dst++) = &env; | |
291 | |
292 if (method->is_static()) { | |
293 istate->set_oop_temp( | |
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294 method->constants()->pool_holder()->java_mirror()); |
1010 | 295 mirror = istate->oop_temp_addr(); |
296 *(dst++) = &mirror; | |
297 } | |
298 | |
299 intptr_t *src = locals; | |
300 for (int i = dst - arguments; i < handler->argument_count(); i++) { | |
301 ffi_type *type = handler->argument_type(i); | |
302 if (type == &ffi_type_pointer) { | |
303 if (*src) { | |
304 stack->push((intptr_t) src); | |
305 *(dst++) = stack->sp(); | |
306 } | |
307 else { | |
308 *(dst++) = src; | |
309 } | |
310 src--; | |
311 } | |
312 else if (type->size == 4) { | |
313 *(dst++) = src--; | |
314 } | |
315 else if (type->size == 8) { | |
316 src--; | |
317 *(dst++) = src--; | |
318 } | |
319 else { | |
320 ShouldNotReachHere(); | |
321 } | |
322 } | |
323 } | |
324 | |
325 // Set up the Java frame anchor | |
326 thread->set_last_Java_frame(); | |
327 | |
328 // Change the thread state to _thread_in_native | |
329 ThreadStateTransition::transition_from_java(thread, _thread_in_native); | |
330 | |
331 // Make the call | |
332 intptr_t result[4 - LogBytesPerWord]; | |
333 ffi_call(handler->cif(), (void (*)()) function, result, arguments); | |
334 | |
335 // Change the thread state back to _thread_in_Java. | |
336 // ThreadStateTransition::transition_from_native() cannot be used | |
337 // here because it does not check for asynchronous exceptions. | |
338 // We have to manage the transition ourself. | |
339 thread->set_thread_state(_thread_in_native_trans); | |
340 | |
341 // Make sure new state is visible in the GC thread | |
342 if (os::is_MP()) { | |
343 if (UseMembar) { | |
344 OrderAccess::fence(); | |
345 } | |
346 else { | |
347 InterfaceSupport::serialize_memory(thread); | |
348 } | |
349 } | |
350 | |
351 // Handle safepoint operations, pending suspend requests, | |
352 // and pending asynchronous exceptions. | |
353 if (SafepointSynchronize::do_call_back() || | |
354 thread->has_special_condition_for_native_trans()) { | |
355 JavaThread::check_special_condition_for_native_trans(thread); | |
356 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); | |
357 } | |
358 | |
359 // Finally we can change the thread state to _thread_in_Java. | |
360 thread->set_thread_state(_thread_in_Java); | |
361 fixup_after_potential_safepoint(); | |
362 | |
363 // Clear the frame anchor | |
364 thread->reset_last_Java_frame(); | |
365 | |
366 // If the result was an oop then unbox it and store it in | |
367 // oop_temp where the garbage collector can see it before | |
368 // we release the handle it might be protected by. | |
369 if (handler->result_type() == &ffi_type_pointer) { | |
370 if (result[0]) | |
371 istate->set_oop_temp(*(oop *) result[0]); | |
372 else | |
373 istate->set_oop_temp(NULL); | |
374 } | |
375 | |
376 // Reset handle block | |
377 thread->active_handles()->clear(); | |
378 | |
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379 unlock_unwind_and_return: |
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380 |
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381 // Unlock if necessary |
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382 if (monitor) { |
1010 | 383 BasicLock *lock = monitor->lock(); |
384 markOop header = lock->displaced_header(); | |
385 oop rcvr = monitor->obj(); | |
386 monitor->set_obj(NULL); | |
387 | |
388 if (header != NULL) { | |
389 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { | |
390 monitor->set_obj(rcvr); { | |
391 HandleMark hm(thread); | |
392 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); | |
393 } | |
394 } | |
395 } | |
396 } | |
397 | |
398 unwind_and_return: | |
399 | |
400 // Unwind the current activation | |
401 thread->pop_zero_frame(); | |
402 | |
403 // Pop our parameters | |
404 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
405 | |
406 // Push our result | |
407 if (!HAS_PENDING_EXCEPTION) { | |
1256 | 408 BasicType type = result_type_of(method); |
409 stack->set_sp(stack->sp() - type2size[type]); | |
1010 | 410 |
1256 | 411 switch (type) { |
1010 | 412 case T_VOID: |
413 break; | |
414 | |
415 case T_BOOLEAN: | |
416 #ifndef VM_LITTLE_ENDIAN | |
417 result[0] <<= (BitsPerWord - BitsPerByte); | |
418 #endif | |
419 SET_LOCALS_INT(*(jboolean *) result != 0, 0); | |
420 break; | |
421 | |
422 case T_CHAR: | |
423 #ifndef VM_LITTLE_ENDIAN | |
424 result[0] <<= (BitsPerWord - BitsPerShort); | |
425 #endif | |
426 SET_LOCALS_INT(*(jchar *) result, 0); | |
427 break; | |
428 | |
429 case T_BYTE: | |
430 #ifndef VM_LITTLE_ENDIAN | |
431 result[0] <<= (BitsPerWord - BitsPerByte); | |
432 #endif | |
433 SET_LOCALS_INT(*(jbyte *) result, 0); | |
434 break; | |
435 | |
436 case T_SHORT: | |
437 #ifndef VM_LITTLE_ENDIAN | |
438 result[0] <<= (BitsPerWord - BitsPerShort); | |
439 #endif | |
440 SET_LOCALS_INT(*(jshort *) result, 0); | |
441 break; | |
442 | |
443 case T_INT: | |
444 #ifndef VM_LITTLE_ENDIAN | |
445 result[0] <<= (BitsPerWord - BitsPerInt); | |
446 #endif | |
447 SET_LOCALS_INT(*(jint *) result, 0); | |
448 break; | |
449 | |
450 case T_LONG: | |
451 SET_LOCALS_LONG(*(jlong *) result, 0); | |
452 break; | |
453 | |
454 case T_FLOAT: | |
455 SET_LOCALS_FLOAT(*(jfloat *) result, 0); | |
456 break; | |
457 | |
458 case T_DOUBLE: | |
459 SET_LOCALS_DOUBLE(*(jdouble *) result, 0); | |
460 break; | |
461 | |
462 case T_OBJECT: | |
463 case T_ARRAY: | |
464 SET_LOCALS_OBJECT(istate->oop_temp(), 0); | |
465 break; | |
466 | |
467 default: | |
468 ShouldNotReachHere(); | |
469 } | |
470 } | |
1514 | 471 |
472 // No deoptimized frames on the stack | |
473 return 0; | |
1010 | 474 } |
475 | |
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476 int CppInterpreter::accessor_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 477 JavaThread *thread = (JavaThread *) THREAD; |
478 ZeroStack *stack = thread->zero_stack(); | |
479 intptr_t *locals = stack->sp(); | |
480 | |
481 // Drop into the slow path if we need a safepoint check | |
482 if (SafepointSynchronize::do_call_back()) { | |
1514 | 483 return normal_entry(method, 0, THREAD); |
1010 | 484 } |
485 | |
486 // Load the object pointer and drop into the slow path | |
487 // if we have a NullPointerException | |
488 oop object = LOCALS_OBJECT(0); | |
489 if (object == NULL) { | |
1514 | 490 return normal_entry(method, 0, THREAD); |
1010 | 491 } |
492 | |
493 // Read the field index from the bytecode, which looks like this: | |
494 // 0: aload_0 | |
495 // 1: getfield | |
496 // 2: index | |
497 // 3: index | |
498 // 4: ireturn/areturn | |
499 // NB this is not raw bytecode: index is in machine order | |
500 u1 *code = method->code_base(); | |
501 assert(code[0] == Bytecodes::_aload_0 && | |
502 code[1] == Bytecodes::_getfield && | |
503 (code[4] == Bytecodes::_ireturn || | |
504 code[4] == Bytecodes::_areturn), "should do"); | |
505 u2 index = Bytes::get_native_u2(&code[2]); | |
506 | |
507 // Get the entry from the constant pool cache, and drop into | |
508 // the slow path if it has not been resolved | |
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509 ConstantPoolCache* cache = method->constants()->cache(); |
1010 | 510 ConstantPoolCacheEntry* entry = cache->entry_at(index); |
511 if (!entry->is_resolved(Bytecodes::_getfield)) { | |
1514 | 512 return normal_entry(method, 0, THREAD); |
1010 | 513 } |
514 | |
515 // Get the result and push it onto the stack | |
516 switch (entry->flag_state()) { | |
517 case ltos: | |
518 case dtos: | |
1514 | 519 stack->overflow_check(1, CHECK_0); |
1010 | 520 stack->alloc(wordSize); |
521 break; | |
522 } | |
523 if (entry->is_volatile()) { | |
524 switch (entry->flag_state()) { | |
525 case ctos: | |
6926 | 526 SET_LOCALS_INT(object->char_field_acquire(entry->f2_as_index()), 0); |
1010 | 527 break; |
528 | |
529 case btos: | |
6926 | 530 SET_LOCALS_INT(object->byte_field_acquire(entry->f2_as_index()), 0); |
1010 | 531 break; |
532 | |
533 case stos: | |
6926 | 534 SET_LOCALS_INT(object->short_field_acquire(entry->f2_as_index()), 0); |
1010 | 535 break; |
536 | |
537 case itos: | |
6926 | 538 SET_LOCALS_INT(object->int_field_acquire(entry->f2_as_index()), 0); |
1010 | 539 break; |
540 | |
541 case ltos: | |
6926 | 542 SET_LOCALS_LONG(object->long_field_acquire(entry->f2_as_index()), 0); |
1010 | 543 break; |
544 | |
545 case ftos: | |
6926 | 546 SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2_as_index()), 0); |
1010 | 547 break; |
548 | |
549 case dtos: | |
6926 | 550 SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2_as_index()), 0); |
1010 | 551 break; |
552 | |
553 case atos: | |
6926 | 554 SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2_as_index()), 0); |
1010 | 555 break; |
556 | |
557 default: | |
558 ShouldNotReachHere(); | |
559 } | |
560 } | |
561 else { | |
562 switch (entry->flag_state()) { | |
563 case ctos: | |
6926 | 564 SET_LOCALS_INT(object->char_field(entry->f2_as_index()), 0); |
1010 | 565 break; |
566 | |
567 case btos: | |
6926 | 568 SET_LOCALS_INT(object->byte_field(entry->f2_as_index()), 0); |
1010 | 569 break; |
570 | |
571 case stos: | |
6926 | 572 SET_LOCALS_INT(object->short_field(entry->f2_as_index()), 0); |
1010 | 573 break; |
574 | |
575 case itos: | |
6926 | 576 SET_LOCALS_INT(object->int_field(entry->f2_as_index()), 0); |
1010 | 577 break; |
578 | |
579 case ltos: | |
6926 | 580 SET_LOCALS_LONG(object->long_field(entry->f2_as_index()), 0); |
1010 | 581 break; |
582 | |
583 case ftos: | |
6926 | 584 SET_LOCALS_FLOAT(object->float_field(entry->f2_as_index()), 0); |
1010 | 585 break; |
586 | |
587 case dtos: | |
6926 | 588 SET_LOCALS_DOUBLE(object->double_field(entry->f2_as_index()), 0); |
1010 | 589 break; |
590 | |
591 case atos: | |
6926 | 592 SET_LOCALS_OBJECT(object->obj_field(entry->f2_as_index()), 0); |
1010 | 593 break; |
594 | |
595 default: | |
596 ShouldNotReachHere(); | |
597 } | |
598 } | |
1514 | 599 |
600 // No deoptimized frames on the stack | |
601 return 0; | |
1010 | 602 } |
603 | |
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604 int CppInterpreter::empty_entry(Method* method, intptr_t UNUSED, TRAPS) { |
1010 | 605 JavaThread *thread = (JavaThread *) THREAD; |
606 ZeroStack *stack = thread->zero_stack(); | |
607 | |
608 // Drop into the slow path if we need a safepoint check | |
609 if (SafepointSynchronize::do_call_back()) { | |
1514 | 610 return normal_entry(method, 0, THREAD); |
1010 | 611 } |
612 | |
613 // Pop our parameters | |
614 stack->set_sp(stack->sp() + method->size_of_parameters()); | |
1514 | 615 |
616 // No deoptimized frames on the stack | |
617 return 0; | |
1010 | 618 } |
619 | |
2480 | 620 // The new slots will be inserted before slot insert_before. |
621 // Slots < insert_before will have the same slot number after the insert. | |
622 // Slots >= insert_before will become old_slot + num_slots. | |
623 void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { | |
624 JavaThread *thread = (JavaThread *) THREAD; | |
625 ZeroStack *stack = thread->zero_stack(); | |
626 | |
627 // Allocate the space | |
628 stack->overflow_check(num_slots, CHECK); | |
629 stack->alloc(num_slots * wordSize); | |
630 intptr_t *vmslots = stack->sp(); | |
631 | |
632 // Shuffle everything up | |
633 for (int i = 0; i < insert_before; i++) | |
634 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); | |
635 } | |
636 | |
637 void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { | |
638 JavaThread *thread = (JavaThread *) THREAD; | |
639 ZeroStack *stack = thread->zero_stack(); | |
640 intptr_t *vmslots = stack->sp(); | |
641 | |
642 // Move everything down | |
643 for (int i = first_slot - 1; i >= 0; i--) | |
644 SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); | |
645 | |
646 // Deallocate the space | |
647 stack->set_sp(stack->sp() + num_slots); | |
648 } | |
649 | |
650 BasicType CppInterpreter::result_type_of_handle(oop method_handle) { | |
651 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
652 oop return_type = java_lang_invoke_MethodType::rtype(method_type); | |
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653 return java_lang_Class::as_BasicType(return_type, (Klass* *) NULL); |
2480 | 654 } |
655 | |
656 intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, | |
657 oop method_handle) { | |
658 oop method_type = java_lang_invoke_MethodHandle::type(method_handle); | |
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659 int argument_slots = java_lang_invoke_MethodType::ptype_slot_count(method_type); |
2480 | 660 |
661 return stack->sp() + argument_slots; | |
662 } | |
663 | |
664 IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, | |
665 Symbol* name, | |
666 char* message)) | |
667 THROW_MSG(name, message); | |
668 IRT_END | |
669 | |
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670 InterpreterFrame *InterpreterFrame::build(Method* const method, TRAPS) { |
1379 | 671 JavaThread *thread = (JavaThread *) THREAD; |
672 ZeroStack *stack = thread->zero_stack(); | |
673 | |
674 // Calculate the size of the frame we'll build, including | |
675 // any adjustments to the caller's frame that we'll make. | |
676 int extra_locals = 0; | |
677 int monitor_words = 0; | |
678 int stack_words = 0; | |
1010 | 679 |
1379 | 680 if (!method->is_native()) { |
681 extra_locals = method->max_locals() - method->size_of_parameters(); | |
682 stack_words = method->max_stack(); | |
1010 | 683 } |
1379 | 684 if (method->is_synchronized()) { |
685 monitor_words = frame::interpreter_frame_monitor_size(); | |
686 } | |
687 stack->overflow_check( | |
688 extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); | |
1010 | 689 |
1379 | 690 // Adjust the caller's stack frame to accomodate any additional |
691 // local variables we have contiguously with our parameters. | |
692 for (int i = 0; i < extra_locals; i++) | |
693 stack->push(0); | |
1010 | 694 |
695 intptr_t *locals; | |
696 if (method->is_native()) | |
697 locals = stack->sp() + (method->size_of_parameters() - 1); | |
698 else | |
699 locals = stack->sp() + (method->max_locals() - 1); | |
700 | |
701 stack->push(0); // next_frame, filled in later | |
702 intptr_t *fp = stack->sp(); | |
703 assert(fp - stack->sp() == next_frame_off, "should be"); | |
704 | |
705 stack->push(INTERPRETER_FRAME); | |
706 assert(fp - stack->sp() == frame_type_off, "should be"); | |
707 | |
708 interpreterState istate = | |
709 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
710 assert(fp - stack->sp() == istate_off, "should be"); | |
711 | |
712 istate->set_locals(locals); | |
713 istate->set_method(method); | |
714 istate->set_self_link(istate); | |
715 istate->set_prev_link(NULL); | |
716 istate->set_thread(thread); | |
717 istate->set_bcp(method->is_native() ? NULL : method->code_base()); | |
718 istate->set_constants(method->constants()->cache()); | |
719 istate->set_msg(BytecodeInterpreter::method_entry); | |
720 istate->set_oop_temp(NULL); | |
721 istate->set_mdx(NULL); | |
722 istate->set_callee(NULL); | |
723 | |
724 istate->set_monitor_base((BasicObjectLock *) stack->sp()); | |
725 if (method->is_synchronized()) { | |
726 BasicObjectLock *monitor = | |
727 (BasicObjectLock *) stack->alloc(monitor_words * wordSize); | |
728 oop object; | |
729 if (method->is_static()) | |
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730 object = method->constants()->pool_holder()->java_mirror(); |
1010 | 731 else |
732 object = (oop) locals[0]; | |
733 monitor->set_obj(object); | |
734 } | |
735 | |
736 istate->set_stack_base(stack->sp()); | |
737 istate->set_stack(stack->sp() - 1); | |
738 if (stack_words) | |
739 stack->alloc(stack_words * wordSize); | |
740 istate->set_stack_limit(stack->sp() - 1); | |
741 | |
742 return (InterpreterFrame *) fp; | |
743 } | |
744 | |
745 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
746 int i = 0; | |
747 switch (type) { | |
748 case T_BOOLEAN: i = 0; break; | |
749 case T_CHAR : i = 1; break; | |
750 case T_BYTE : i = 2; break; | |
751 case T_SHORT : i = 3; break; | |
752 case T_INT : i = 4; break; | |
753 case T_LONG : i = 5; break; | |
754 case T_VOID : i = 6; break; | |
755 case T_FLOAT : i = 7; break; | |
756 case T_DOUBLE : i = 8; break; | |
757 case T_OBJECT : i = 9; break; | |
758 case T_ARRAY : i = 9; break; | |
759 default : ShouldNotReachHere(); | |
760 } | |
761 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
762 "index out of bounds"); | |
763 return i; | |
764 } | |
765 | |
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766 BasicType CppInterpreter::result_type_of(Method* method) { |
1256 | 767 BasicType t; |
768 switch (method->result_index()) { | |
769 case 0 : t = T_BOOLEAN; break; | |
770 case 1 : t = T_CHAR; break; | |
771 case 2 : t = T_BYTE; break; | |
772 case 3 : t = T_SHORT; break; | |
773 case 4 : t = T_INT; break; | |
774 case 5 : t = T_LONG; break; | |
775 case 6 : t = T_VOID; break; | |
776 case 7 : t = T_FLOAT; break; | |
777 case 8 : t = T_DOUBLE; break; | |
778 case 9 : t = T_OBJECT; break; | |
779 default: ShouldNotReachHere(); | |
780 } | |
781 assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), | |
782 "out of step with AbstractInterpreter::BasicType_as_index"); | |
783 return t; | |
784 } | |
785 | |
1010 | 786 address InterpreterGenerator::generate_empty_entry() { |
787 if (!UseFastEmptyMethods) | |
788 return NULL; | |
789 | |
790 return generate_entry((address) CppInterpreter::empty_entry); | |
791 } | |
792 | |
793 address InterpreterGenerator::generate_accessor_entry() { | |
794 if (!UseFastAccessorMethods) | |
795 return NULL; | |
796 | |
797 return generate_entry((address) CppInterpreter::accessor_entry); | |
798 } | |
799 | |
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800 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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801 #if INCLUDE_ALL_GCS |
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802 if (UseG1GC) { |
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803 // We need to generate have a routine that generates code to: |
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804 // * load the value in the referent field |
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805 // * passes that value to the pre-barrier. |
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806 // |
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807 // In the case of G1 this will record the value of the |
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808 // referent in an SATB buffer if marking is active. |
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809 // This will cause concurrent marking to mark the referent |
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810 // field as live. |
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811 Unimplemented(); |
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812 } |
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813 #endif // INCLUDE_ALL_GCS |
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814 |
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815 // If G1 is not enabled then attempt to go through the accessor entry point |
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816 // Reference.get is an accessor |
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817 return generate_accessor_entry(); |
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818 } |
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819 |
1010 | 820 address InterpreterGenerator::generate_native_entry(bool synchronized) { |
821 assert(synchronized == false, "should be"); | |
822 | |
823 return generate_entry((address) CppInterpreter::native_entry); | |
824 } | |
825 | |
826 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
827 assert(synchronized == false, "should be"); | |
828 | |
829 return generate_entry((address) CppInterpreter::normal_entry); | |
830 } | |
831 | |
832 address AbstractInterpreterGenerator::generate_method_entry( | |
833 AbstractInterpreter::MethodKind kind) { | |
834 address entry_point = NULL; | |
835 | |
836 switch (kind) { | |
837 case Interpreter::zerolocals: | |
838 case Interpreter::zerolocals_synchronized: | |
839 break; | |
840 | |
841 case Interpreter::native: | |
842 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
843 break; | |
844 | |
845 case Interpreter::native_synchronized: | |
846 entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); | |
847 break; | |
848 | |
849 case Interpreter::empty: | |
850 entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); | |
851 break; | |
852 | |
853 case Interpreter::accessor: | |
854 entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); | |
855 break; | |
856 | |
857 case Interpreter::abstract: | |
858 entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); | |
859 break; | |
860 | |
861 case Interpreter::java_lang_math_sin: | |
862 case Interpreter::java_lang_math_cos: | |
863 case Interpreter::java_lang_math_tan: | |
864 case Interpreter::java_lang_math_abs: | |
865 case Interpreter::java_lang_math_log: | |
866 case Interpreter::java_lang_math_log10: | |
867 case Interpreter::java_lang_math_sqrt: | |
6926 | 868 case Interpreter::java_lang_math_pow: |
869 case Interpreter::java_lang_math_exp: | |
1010 | 870 entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); |
871 break; | |
872 | |
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873 case Interpreter::java_lang_ref_reference_get: |
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874 entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
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875 break; |
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876 |
1010 | 877 default: |
878 ShouldNotReachHere(); | |
879 } | |
880 | |
881 if (entry_point == NULL) | |
882 entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); | |
883 | |
884 return entry_point; | |
885 } | |
886 | |
887 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
888 : CppInterpreterGenerator(code) { | |
889 generate_all(); | |
890 } | |
891 | |
892 // Deoptimization helpers | |
893 | |
1379 | 894 InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
895 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); | |
896 | |
1010 | 897 int size_in_words = size >> LogBytesPerWord; |
898 assert(size_in_words * wordSize == size, "unaligned"); | |
899 assert(size_in_words >= header_words, "too small"); | |
1379 | 900 stack->overflow_check(size_in_words, CHECK_NULL); |
1010 | 901 |
902 stack->push(0); // next_frame, filled in later | |
903 intptr_t *fp = stack->sp(); | |
904 assert(fp - stack->sp() == next_frame_off, "should be"); | |
905 | |
906 stack->push(INTERPRETER_FRAME); | |
907 assert(fp - stack->sp() == frame_type_off, "should be"); | |
908 | |
909 interpreterState istate = | |
910 (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); | |
911 assert(fp - stack->sp() == istate_off, "should be"); | |
912 istate->set_self_link(NULL); // mark invalid | |
913 | |
914 stack->alloc((size_in_words - header_words) * wordSize); | |
915 | |
916 return (InterpreterFrame *) fp; | |
917 } | |
918 | |
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919 int AbstractInterpreter::layout_activation(Method* method, |
1010 | 920 int tempcount, |
921 int popframe_extra_args, | |
922 int moncount, | |
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923 int caller_actual_parameters, |
1010 | 924 int callee_param_count, |
925 int callee_locals, | |
926 frame* caller, | |
927 frame* interpreter_frame, | |
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928 bool is_top_frame, |
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929 bool is_bottom_frame) { |
1010 | 930 assert(popframe_extra_args == 0, "what to do?"); |
931 assert(!is_top_frame || (!callee_locals && !callee_param_count), | |
1605 | 932 "top frame should have no caller"); |
1010 | 933 |
934 // This code must exactly match what InterpreterFrame::build | |
935 // does (the full InterpreterFrame::build, that is, not the | |
936 // one that creates empty frames for the deoptimizer). | |
937 // | |
938 // If interpreter_frame is not NULL then it will be filled in. | |
939 // It's size is determined by a previous call to this method, | |
940 // so it should be correct. | |
941 // | |
942 // Note that tempcount is the current size of the expression | |
943 // stack. For top most frames we will allocate a full sized | |
944 // expression stack and not the trimmed version that non-top | |
945 // frames have. | |
946 | |
947 int header_words = InterpreterFrame::header_words; | |
948 int monitor_words = moncount * frame::interpreter_frame_monitor_size(); | |
949 int stack_words = is_top_frame ? method->max_stack() : tempcount; | |
950 int callee_extra_locals = callee_locals - callee_param_count; | |
951 | |
952 if (interpreter_frame) { | |
1505 | 953 intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
1010 | 954 interpreterState istate = interpreter_frame->get_interpreterState(); |
955 intptr_t *monitor_base = (intptr_t*) istate; | |
956 intptr_t *stack_base = monitor_base - monitor_words; | |
957 intptr_t *stack = stack_base - tempcount - 1; | |
958 | |
959 BytecodeInterpreter::layout_interpreterState(istate, | |
960 caller, | |
961 NULL, | |
962 method, | |
963 locals, | |
964 stack, | |
965 stack_base, | |
966 monitor_base, | |
967 NULL, | |
968 is_top_frame); | |
969 } | |
970 return header_words + monitor_words + stack_words + callee_extra_locals; | |
971 } | |
972 | |
973 void BytecodeInterpreter::layout_interpreterState(interpreterState istate, | |
974 frame* caller, | |
975 frame* current, | |
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976 Method* method, |
1010 | 977 intptr_t* locals, |
978 intptr_t* stack, | |
979 intptr_t* stack_base, | |
980 intptr_t* monitor_base, | |
981 intptr_t* frame_bottom, | |
982 bool is_top_frame) { | |
983 istate->set_locals(locals); | |
984 istate->set_method(method); | |
985 istate->set_self_link(istate); | |
986 istate->set_prev_link(NULL); | |
987 // thread will be set by a hacky repurposing of frame::patch_pc() | |
988 // bcp will be set by vframeArrayElement::unpack_on_stack() | |
989 istate->set_constants(method->constants()->cache()); | |
990 istate->set_msg(BytecodeInterpreter::method_resume); | |
991 istate->set_bcp_advance(0); | |
992 istate->set_oop_temp(NULL); | |
993 istate->set_mdx(NULL); | |
994 if (caller->is_interpreted_frame()) { | |
995 interpreterState prev = caller->get_interpreterState(); | |
996 prev->set_callee(method); | |
997 if (*prev->bcp() == Bytecodes::_invokeinterface) | |
998 prev->set_bcp_advance(5); | |
999 else | |
1000 prev->set_bcp_advance(3); | |
1001 } | |
1002 istate->set_callee(NULL); | |
1003 istate->set_monitor_base((BasicObjectLock *) monitor_base); | |
1004 istate->set_stack_base(stack_base); | |
1005 istate->set_stack(stack); | |
1006 istate->set_stack_limit(stack_base - method->max_stack() - 1); | |
1007 } | |
1008 | |
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1009 address CppInterpreter::return_entry(TosState state, int length, Bytecodes::Code code) { |
1010 | 1010 ShouldNotCallThis(); |
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1011 return NULL; |
1010 | 1012 } |
1013 | |
1014 address CppInterpreter::deopt_entry(TosState state, int length) { | |
1015 return NULL; | |
1016 } | |
1017 | |
1018 // Helper for (runtime) stack overflow checks | |
1019 | |
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1020 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
1010 | 1021 return 0; |
1022 } | |
1023 | |
1024 // Helper for figuring out if frames are interpreter frames | |
1025 | |
1026 bool CppInterpreter::contains(address pc) { | |
1027 return false; // make frame::print_value_on work | |
1028 } | |
1029 | |
1030 // Result handlers and convertors | |
1031 | |
1032 address CppInterpreterGenerator::generate_result_handler_for( | |
1033 BasicType type) { | |
1034 assembler()->advance(1); | |
1035 return ShouldNotCallThisStub(); | |
1036 } | |
1037 | |
1038 address CppInterpreterGenerator::generate_tosca_to_stack_converter( | |
1039 BasicType type) { | |
1040 assembler()->advance(1); | |
1041 return ShouldNotCallThisStub(); | |
1042 } | |
1043 | |
1044 address CppInterpreterGenerator::generate_stack_to_stack_converter( | |
1045 BasicType type) { | |
1046 assembler()->advance(1); | |
1047 return ShouldNotCallThisStub(); | |
1048 } | |
1049 | |
1050 address CppInterpreterGenerator::generate_stack_to_native_abi_converter( | |
1051 BasicType type) { | |
1052 assembler()->advance(1); | |
1053 return ShouldNotCallThisStub(); | |
1054 } | |
1055 | |
1056 #endif // CC_INTERP |