1 /*
2 * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "code/codeCache.hpp"
29 #include "code/compiledIC.hpp"
30 #include "code/icBuffer.hpp"
31 #include "code/nmethod.hpp"
32 #include "code/pcDesc.hpp"
33 #include "code/scopeDesc.hpp"
34 #include "code/vtableStubs.hpp"
35 #include "compiler/compileBroker.hpp"
36 #include "compiler/oopMap.hpp"
37 #include "gc/g1/g1SATBCardTableModRefBS.hpp"
38 #include "gc/g1/heapRegion.hpp"
39 #include "gc/shared/barrierSet.hpp"
40 #include "gc/shared/collectedHeap.hpp"
41 #include "gc/shared/gcLocker.inline.hpp"
42 #include "interpreter/bytecode.hpp"
43 #include "interpreter/interpreter.hpp"
44 #include "interpreter/linkResolver.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "oops/objArrayKlass.hpp"
47 #include "oops/oop.inline.hpp"
48 #include "opto/ad.hpp"
49 #include "opto/addnode.hpp"
50 #include "opto/callnode.hpp"
51 #include "opto/cfgnode.hpp"
52 #include "opto/graphKit.hpp"
53 #include "opto/machnode.hpp"
54 #include "opto/matcher.hpp"
55 #include "opto/memnode.hpp"
56 #include "opto/mulnode.hpp"
57 #include "opto/runtime.hpp"
58 #include "opto/subnode.hpp"
59 #include "runtime/atomic.inline.hpp"
60 #include "runtime/fprofiler.hpp"
61 #include "runtime/handles.inline.hpp"
62 #include "runtime/interfaceSupport.hpp"
63 #include "runtime/javaCalls.hpp"
64 #include "runtime/sharedRuntime.hpp"
65 #include "runtime/signature.hpp"
66 #include "runtime/threadCritical.hpp"
67 #include "runtime/vframe.hpp"
68 #include "runtime/vframeArray.hpp"
69 #include "runtime/vframe_hp.hpp"
70 #include "utilities/copy.hpp"
71 #include "utilities/preserveException.hpp"
72
73
74 // For debugging purposes:
75 // To force FullGCALot inside a runtime function, add the following two lines
76 //
77 // Universe::release_fullgc_alot_dummy();
78 // MarkSweep::invoke(0, "Debugging");
79 //
80 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000
81
82
83
84
85 // Compiled code entry points
86 address OptoRuntime::_new_instance_Java = NULL;
87 address OptoRuntime::_new_array_Java = NULL;
88 address OptoRuntime::_new_array_nozero_Java = NULL;
89 address OptoRuntime::_multianewarray2_Java = NULL;
90 address OptoRuntime::_multianewarray3_Java = NULL;
91 address OptoRuntime::_multianewarray4_Java = NULL;
92 address OptoRuntime::_multianewarray5_Java = NULL;
93 address OptoRuntime::_multianewarrayN_Java = NULL;
94 address OptoRuntime::_g1_wb_pre_Java = NULL;
95 address OptoRuntime::_g1_wb_post_Java = NULL;
96 address OptoRuntime::_vtable_must_compile_Java = NULL;
97 address OptoRuntime::_complete_monitor_locking_Java = NULL;
98 address OptoRuntime::_monitor_notify_Java = NULL;
99 address OptoRuntime::_monitor_notifyAll_Java = NULL;
100 address OptoRuntime::_rethrow_Java = NULL;
101
102 address OptoRuntime::_slow_arraycopy_Java = NULL;
103 address OptoRuntime::_register_finalizer_Java = NULL;
104
105 ExceptionBlob* OptoRuntime::_exception_blob;
106
107 // This should be called in an assertion at the start of OptoRuntime routines
108 // which are entered from compiled code (all of them)
109 #ifdef ASSERT
110 static bool check_compiled_frame(JavaThread* thread) {
111 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code");
112 RegisterMap map(thread, false);
113 frame caller = thread->last_frame().sender(&map);
114 assert(caller.is_compiled_frame(), "not being called from compiled like code");
115 return true;
116 }
117 #endif // ASSERT
118
119
120 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \
121 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc); \
122 if (var == NULL) { return false; }
123
124 bool OptoRuntime::generate(ciEnv* env) {
125
126 generate_exception_blob();
127
128 // Note: tls: Means fetching the return oop out of the thread-local storage
129 //
130 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc
131 // -------------------------------------------------------------------------------------------------------------------------------
132 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false);
133 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false);
134 gen(env, _new_array_nozero_Java , new_array_Type , new_array_nozero_C , 0 , true , false, false);
135 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false);
136 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false);
137 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false);
138 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false);
139 gen(env, _multianewarrayN_Java , multianewarrayN_Type , multianewarrayN_C , 0 , true , false, false);
140 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false);
141 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false);
142 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C, 0, false, false, false);
143 gen(env, _monitor_notify_Java , monitor_notify_Type , monitor_notify_C , 0 , false, false, false);
144 gen(env, _monitor_notifyAll_Java , monitor_notify_Type , monitor_notifyAll_C , 0 , false, false, false);
145 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true );
146
147 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false);
148 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false);
149
150 return true;
151 }
152
153 #undef gen
154
155
156 // Helper method to do generation of RunTimeStub's
157 address OptoRuntime::generate_stub( ciEnv* env,
158 TypeFunc_generator gen, address C_function,
159 const char *name, int is_fancy_jump,
160 bool pass_tls,
161 bool save_argument_registers,
162 bool return_pc) {
163
164 // Matching the default directive, we currently have no method to match.
165 DirectiveSet* directive = DirectivesStack::getDefaultDirective(CompileBroker::compiler(CompLevel_full_optimization));
166 ResourceMark rm;
167 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc, directive);
168 DirectivesStack::release(directive);
169 return C.stub_entry_point();
170 }
171
172 const char* OptoRuntime::stub_name(address entry) {
173 #ifndef PRODUCT
174 CodeBlob* cb = CodeCache::find_blob(entry);
175 RuntimeStub* rs =(RuntimeStub *)cb;
176 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub");
177 return rs->name();
178 #else
179 // Fast implementation for product mode (maybe it should be inlined too)
180 return "runtime stub";
181 #endif
182 }
183
184
185 //=============================================================================
186 // Opto compiler runtime routines
187 //=============================================================================
188
189
190 //=============================allocation======================================
191 // We failed the fast-path allocation. Now we need to do a scavenge or GC
192 // and try allocation again.
193
194 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) {
195 // After any safepoint, just before going back to compiled code,
196 // we inform the GC that we will be doing initializing writes to
197 // this object in the future without emitting card-marks, so
198 // GC may take any compensating steps.
199 // NOTE: Keep this code consistent with GraphKit::store_barrier.
200
201 oop new_obj = thread->vm_result();
202 if (new_obj == NULL) return;
203
204 assert(Universe::heap()->can_elide_tlab_store_barriers(),
205 "compiler must check this first");
206 // GC may decide to give back a safer copy of new_obj.
207 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj);
208 thread->set_vm_result(new_obj);
209 }
210
211 // object allocation
212 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(Klass* klass, JavaThread* thread))
213 JRT_BLOCK;
214 #ifndef PRODUCT
215 SharedRuntime::_new_instance_ctr++; // new instance requires GC
216 #endif
217 assert(check_compiled_frame(thread), "incorrect caller");
218
219 // These checks are cheap to make and support reflective allocation.
220 int lh = klass->layout_helper();
221 if (Klass::layout_helper_needs_slow_path(lh)
222 || !InstanceKlass::cast(klass)->is_initialized()) {
223 KlassHandle kh(THREAD, klass);
224 kh->check_valid_for_instantiation(false, THREAD);
225 if (!HAS_PENDING_EXCEPTION) {
226 InstanceKlass::cast(kh())->initialize(THREAD);
227 }
228 if (!HAS_PENDING_EXCEPTION) {
229 klass = kh();
230 } else {
231 klass = NULL;
232 }
233 }
234
235 if (klass != NULL) {
236 // Scavenge and allocate an instance.
237 oop result = InstanceKlass::cast(klass)->allocate_instance(THREAD);
238 thread->set_vm_result(result);
239
240 // Pass oops back through thread local storage. Our apparent type to Java
241 // is that we return an oop, but we can block on exit from this routine and
242 // a GC can trash the oop in C's return register. The generated stub will
243 // fetch the oop from TLS after any possible GC.
244 }
245
246 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
247 JRT_BLOCK_END;
248
249 if (GraphKit::use_ReduceInitialCardMarks()) {
250 // inform GC that we won't do card marks for initializing writes.
251 new_store_pre_barrier(thread);
252 }
253 JRT_END
254
255
256 // array allocation
257 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(Klass* array_type, int len, JavaThread *thread))
258 JRT_BLOCK;
259 #ifndef PRODUCT
260 SharedRuntime::_new_array_ctr++; // new array requires GC
261 #endif
262 assert(check_compiled_frame(thread), "incorrect caller");
263
264 // Scavenge and allocate an instance.
265 oop result;
266
267 if (array_type->is_typeArray_klass()) {
268 // The oopFactory likes to work with the element type.
269 // (We could bypass the oopFactory, since it doesn't add much value.)
270 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
271 result = oopFactory::new_typeArray(elem_type, len, THREAD);
272 } else {
273 // Although the oopFactory likes to work with the elem_type,
274 // the compiler prefers the array_type, since it must already have
275 // that latter value in hand for the fast path.
276 Klass* elem_type = ObjArrayKlass::cast(array_type)->element_klass();
277 result = oopFactory::new_objArray(elem_type, len, THREAD);
278 }
279
280 // Pass oops back through thread local storage. Our apparent type to Java
281 // is that we return an oop, but we can block on exit from this routine and
282 // a GC can trash the oop in C's return register. The generated stub will
283 // fetch the oop from TLS after any possible GC.
284 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
285 thread->set_vm_result(result);
286 JRT_BLOCK_END;
287
288 if (GraphKit::use_ReduceInitialCardMarks()) {
289 // inform GC that we won't do card marks for initializing writes.
290 new_store_pre_barrier(thread);
291 }
292 JRT_END
293
294 // array allocation without zeroing
295 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(Klass* array_type, int len, JavaThread *thread))
296 JRT_BLOCK;
297 #ifndef PRODUCT
298 SharedRuntime::_new_array_ctr++; // new array requires GC
299 #endif
300 assert(check_compiled_frame(thread), "incorrect caller");
301
302 // Scavenge and allocate an instance.
303 oop result;
304
305 assert(array_type->is_typeArray_klass(), "should be called only for type array");
306 // The oopFactory likes to work with the element type.
307 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
308 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD);
309
310 // Pass oops back through thread local storage. Our apparent type to Java
311 // is that we return an oop, but we can block on exit from this routine and
312 // a GC can trash the oop in C's return register. The generated stub will
313 // fetch the oop from TLS after any possible GC.
314 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
315 thread->set_vm_result(result);
316 JRT_BLOCK_END;
317
318 if (GraphKit::use_ReduceInitialCardMarks()) {
319 // inform GC that we won't do card marks for initializing writes.
320 new_store_pre_barrier(thread);
321 }
322
323 oop result = thread->vm_result();
324 if ((len > 0) && (result != NULL) &&
325 is_deoptimized_caller_frame(thread)) {
326 // Zero array here if the caller is deoptimized.
327 int size = ((typeArrayOop)result)->object_size();
328 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
329 const size_t hs = arrayOopDesc::header_size(elem_type);
330 // Align to next 8 bytes to avoid trashing arrays's length.
331 const size_t aligned_hs = align_object_offset(hs);
332 HeapWord* obj = (HeapWord*)result;
333 if (aligned_hs > hs) {
334 Copy::zero_to_words(obj+hs, aligned_hs-hs);
335 }
336 // Optimized zeroing.
337 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs);
338 }
339
340 JRT_END
341
342 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
343
344 // multianewarray for 2 dimensions
345 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(Klass* elem_type, int len1, int len2, JavaThread *thread))
346 #ifndef PRODUCT
347 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension
348 #endif
349 assert(check_compiled_frame(thread), "incorrect caller");
350 assert(elem_type->is_klass(), "not a class");
351 jint dims[2];
352 dims[0] = len1;
353 dims[1] = len2;
354 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD);
355 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
356 thread->set_vm_result(obj);
357 JRT_END
358
359 // multianewarray for 3 dimensions
360 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(Klass* elem_type, int len1, int len2, int len3, JavaThread *thread))
361 #ifndef PRODUCT
362 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension
363 #endif
364 assert(check_compiled_frame(thread), "incorrect caller");
365 assert(elem_type->is_klass(), "not a class");
366 jint dims[3];
367 dims[0] = len1;
368 dims[1] = len2;
369 dims[2] = len3;
370 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD);
371 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
372 thread->set_vm_result(obj);
373 JRT_END
374
375 // multianewarray for 4 dimensions
376 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(Klass* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread))
377 #ifndef PRODUCT
378 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension
379 #endif
380 assert(check_compiled_frame(thread), "incorrect caller");
381 assert(elem_type->is_klass(), "not a class");
382 jint dims[4];
383 dims[0] = len1;
384 dims[1] = len2;
385 dims[2] = len3;
386 dims[3] = len4;
387 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD);
388 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
389 thread->set_vm_result(obj);
390 JRT_END
391
392 // multianewarray for 5 dimensions
393 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(Klass* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread))
394 #ifndef PRODUCT
395 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension
396 #endif
397 assert(check_compiled_frame(thread), "incorrect caller");
398 assert(elem_type->is_klass(), "not a class");
399 jint dims[5];
400 dims[0] = len1;
401 dims[1] = len2;
402 dims[2] = len3;
403 dims[3] = len4;
404 dims[4] = len5;
405 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD);
406 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
407 thread->set_vm_result(obj);
408 JRT_END
409
410 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(Klass* elem_type, arrayOopDesc* dims, JavaThread *thread))
411 assert(check_compiled_frame(thread), "incorrect caller");
412 assert(elem_type->is_klass(), "not a class");
413 assert(oop(dims)->is_typeArray(), "not an array");
414
415 ResourceMark rm;
416 jint len = dims->length();
417 assert(len > 0, "Dimensions array should contain data");
418 jint *j_dims = typeArrayOop(dims)->int_at_addr(0);
419 jint *c_dims = NEW_RESOURCE_ARRAY(jint, len);
420 Copy::conjoint_jints_atomic(j_dims, c_dims, len);
421
422 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD);
423 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
424 thread->set_vm_result(obj);
425 JRT_END
426
427 JRT_BLOCK_ENTRY(void, OptoRuntime::monitor_notify_C(oopDesc* obj, JavaThread *thread))
428
429 // Very few notify/notifyAll operations find any threads on the waitset, so
430 // the dominant fast-path is to simply return.
431 // Relatedly, it's critical that notify/notifyAll be fast in order to
432 // reduce lock hold times.
433 if (!SafepointSynchronize::is_synchronizing()) {
434 if (ObjectSynchronizer::quick_notify(obj, thread, false)) {
435 return;
436 }
437 }
438
439 // This is the case the fast-path above isn't provisioned to handle.
440 // The fast-path is designed to handle frequently arising cases in an efficient manner.
441 // (The fast-path is just a degenerate variant of the slow-path).
442 // Perform the dreaded state transition and pass control into the slow-path.
443 JRT_BLOCK;
444 Handle h_obj(THREAD, obj);
445 ObjectSynchronizer::notify(h_obj, CHECK);
446 JRT_BLOCK_END;
447 JRT_END
448
449 JRT_BLOCK_ENTRY(void, OptoRuntime::monitor_notifyAll_C(oopDesc* obj, JavaThread *thread))
450
451 if (!SafepointSynchronize::is_synchronizing() ) {
452 if (ObjectSynchronizer::quick_notify(obj, thread, true)) {
453 return;
454 }
455 }
456
457 // This is the case the fast-path above isn't provisioned to handle.
458 // The fast-path is designed to handle frequently arising cases in an efficient manner.
459 // (The fast-path is just a degenerate variant of the slow-path).
460 // Perform the dreaded state transition and pass control into the slow-path.
461 JRT_BLOCK;
462 Handle h_obj(THREAD, obj);
463 ObjectSynchronizer::notifyall(h_obj, CHECK);
464 JRT_BLOCK_END;
465 JRT_END
466
467 const TypeFunc *OptoRuntime::new_instance_Type() {
468 // create input type (domain)
469 const Type **fields = TypeTuple::fields(1);
470 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
471 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
472
473 // create result type (range)
474 fields = TypeTuple::fields(1);
475 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
476
477 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
478
479 return TypeFunc::make(domain, range);
480 }
481
482
483 const TypeFunc *OptoRuntime::athrow_Type() {
484 // create input type (domain)
485 const Type **fields = TypeTuple::fields(1);
486 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
487 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
488
489 // create result type (range)
490 fields = TypeTuple::fields(0);
491
492 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
493
494 return TypeFunc::make(domain, range);
495 }
496
497
498 const TypeFunc *OptoRuntime::new_array_Type() {
499 // create input type (domain)
500 const Type **fields = TypeTuple::fields(2);
501 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass
502 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size
503 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
504
505 // create result type (range)
506 fields = TypeTuple::fields(1);
507 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
508
509 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
510
511 return TypeFunc::make(domain, range);
512 }
513
514 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) {
515 // create input type (domain)
516 const int nargs = ndim + 1;
517 const Type **fields = TypeTuple::fields(nargs);
518 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass
519 for( int i = 1; i < nargs; i++ )
520 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size
521 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields);
522
523 // create result type (range)
524 fields = TypeTuple::fields(1);
525 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
526 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
527
528 return TypeFunc::make(domain, range);
529 }
530
531 const TypeFunc *OptoRuntime::multianewarray2_Type() {
532 return multianewarray_Type(2);
533 }
534
535 const TypeFunc *OptoRuntime::multianewarray3_Type() {
536 return multianewarray_Type(3);
537 }
538
539 const TypeFunc *OptoRuntime::multianewarray4_Type() {
540 return multianewarray_Type(4);
541 }
542
543 const TypeFunc *OptoRuntime::multianewarray5_Type() {
544 return multianewarray_Type(5);
545 }
546
547 const TypeFunc *OptoRuntime::multianewarrayN_Type() {
548 // create input type (domain)
549 const Type **fields = TypeTuple::fields(2);
550 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass
551 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // array of dim sizes
552 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
553
554 // create result type (range)
555 fields = TypeTuple::fields(1);
556 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
557 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
558
559 return TypeFunc::make(domain, range);
560 }
561
562 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {
563 const Type **fields = TypeTuple::fields(2);
564 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value
565 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
566 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
567
568 // create result type (range)
569 fields = TypeTuple::fields(0);
570 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
571
572 return TypeFunc::make(domain, range);
573 }
574
575 const TypeFunc *OptoRuntime::g1_wb_post_Type() {
576
577 const Type **fields = TypeTuple::fields(2);
578 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr
579 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
580 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
581
582 // create result type (range)
583 fields = TypeTuple::fields(0);
584 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
585
586 return TypeFunc::make(domain, range);
587 }
588
589 const TypeFunc *OptoRuntime::uncommon_trap_Type() {
590 // create input type (domain)
591 const Type **fields = TypeTuple::fields(1);
592 fields[TypeFunc::Parms+0] = TypeInt::INT; // trap_reason (deopt reason and action)
593 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
594
595 // create result type (range)
596 fields = TypeTuple::fields(0);
597 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
598
599 return TypeFunc::make(domain, range);
600 }
601
602 //-----------------------------------------------------------------------------
603 // Monitor Handling
604 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {
605 // create input type (domain)
606 const Type **fields = TypeTuple::fields(2);
607 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked
608 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock
609 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
610
611 // create result type (range)
612 fields = TypeTuple::fields(0);
613
614 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
615
616 return TypeFunc::make(domain,range);
617 }
618
619
620 //-----------------------------------------------------------------------------
621 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {
622 // create input type (domain)
623 const Type **fields = TypeTuple::fields(3);
624 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked
625 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock - BasicLock
626 fields[TypeFunc::Parms+2] = TypeRawPtr::BOTTOM; // Thread pointer (Self)
627 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+3, fields);
628
629 // create result type (range)
630 fields = TypeTuple::fields(0);
631
632 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
633
634 return TypeFunc::make(domain, range);
635 }
636
637 const TypeFunc *OptoRuntime::monitor_notify_Type() {
638 // create input type (domain)
639 const Type **fields = TypeTuple::fields(1);
640 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked
641 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
642
643 // create result type (range)
644 fields = TypeTuple::fields(0);
645 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
646 return TypeFunc::make(domain, range);
647 }
648
649 const TypeFunc* OptoRuntime::flush_windows_Type() {
650 // create input type (domain)
651 const Type** fields = TypeTuple::fields(1);
652 fields[TypeFunc::Parms+0] = NULL; // void
653 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields);
654
655 // create result type
656 fields = TypeTuple::fields(1);
657 fields[TypeFunc::Parms+0] = NULL; // void
658 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
659
660 return TypeFunc::make(domain, range);
661 }
662
663 const TypeFunc* OptoRuntime::l2f_Type() {
664 // create input type (domain)
665 const Type **fields = TypeTuple::fields(2);
666 fields[TypeFunc::Parms+0] = TypeLong::LONG;
667 fields[TypeFunc::Parms+1] = Type::HALF;
668 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
669
670 // create result type (range)
671 fields = TypeTuple::fields(1);
672 fields[TypeFunc::Parms+0] = Type::FLOAT;
673 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
674
675 return TypeFunc::make(domain, range);
676 }
677
678 const TypeFunc* OptoRuntime::modf_Type() {
679 const Type **fields = TypeTuple::fields(2);
680 fields[TypeFunc::Parms+0] = Type::FLOAT;
681 fields[TypeFunc::Parms+1] = Type::FLOAT;
682 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
683
684 // create result type (range)
685 fields = TypeTuple::fields(1);
686 fields[TypeFunc::Parms+0] = Type::FLOAT;
687
688 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
689
690 return TypeFunc::make(domain, range);
691 }
692
693 const TypeFunc *OptoRuntime::Math_D_D_Type() {
694 // create input type (domain)
695 const Type **fields = TypeTuple::fields(2);
696 // Symbol* name of class to be loaded
697 fields[TypeFunc::Parms+0] = Type::DOUBLE;
698 fields[TypeFunc::Parms+1] = Type::HALF;
699 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
700
701 // create result type (range)
702 fields = TypeTuple::fields(2);
703 fields[TypeFunc::Parms+0] = Type::DOUBLE;
704 fields[TypeFunc::Parms+1] = Type::HALF;
705 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
706
707 return TypeFunc::make(domain, range);
708 }
709
710 const TypeFunc* OptoRuntime::Math_DD_D_Type() {
711 const Type **fields = TypeTuple::fields(4);
712 fields[TypeFunc::Parms+0] = Type::DOUBLE;
713 fields[TypeFunc::Parms+1] = Type::HALF;
714 fields[TypeFunc::Parms+2] = Type::DOUBLE;
715 fields[TypeFunc::Parms+3] = Type::HALF;
716 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields);
717
718 // create result type (range)
719 fields = TypeTuple::fields(2);
720 fields[TypeFunc::Parms+0] = Type::DOUBLE;
721 fields[TypeFunc::Parms+1] = Type::HALF;
722 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
723
724 return TypeFunc::make(domain, range);
725 }
726
727 //-------------- currentTimeMillis, currentTimeNanos, etc
728
729 const TypeFunc* OptoRuntime::void_long_Type() {
730 // create input type (domain)
731 const Type **fields = TypeTuple::fields(0);
732 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);
733
734 // create result type (range)
735 fields = TypeTuple::fields(2);
736 fields[TypeFunc::Parms+0] = TypeLong::LONG;
737 fields[TypeFunc::Parms+1] = Type::HALF;
738 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
739
740 return TypeFunc::make(domain, range);
741 }
742
743 // arraycopy stub variations:
744 enum ArrayCopyType {
745 ac_fast, // void(ptr, ptr, size_t)
746 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr)
747 ac_slow, // void(ptr, int, ptr, int, int)
748 ac_generic // int(ptr, int, ptr, int, int)
749 };
750
751 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {
752 // create input type (domain)
753 int num_args = (act == ac_fast ? 3 : 5);
754 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0);
755 int argcnt = num_args;
756 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths
757 const Type** fields = TypeTuple::fields(argcnt);
758 int argp = TypeFunc::Parms;
759 fields[argp++] = TypePtr::NOTNULL; // src
760 if (num_size_args == 0) {
761 fields[argp++] = TypeInt::INT; // src_pos
762 }
763 fields[argp++] = TypePtr::NOTNULL; // dest
764 if (num_size_args == 0) {
765 fields[argp++] = TypeInt::INT; // dest_pos
766 fields[argp++] = TypeInt::INT; // length
767 }
768 while (num_size_args-- > 0) {
769 fields[argp++] = TypeX_X; // size in whatevers (size_t)
770 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
771 }
772 if (act == ac_checkcast) {
773 fields[argp++] = TypePtr::NOTNULL; // super_klass
774 }
775 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act");
776 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
777
778 // create result type if needed
779 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0);
780 fields = TypeTuple::fields(1);
781 if (retcnt == 0)
782 fields[TypeFunc::Parms+0] = NULL; // void
783 else
784 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed
785 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields);
786 return TypeFunc::make(domain, range);
787 }
788
789 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {
790 // This signature is simple: Two base pointers and a size_t.
791 return make_arraycopy_Type(ac_fast);
792 }
793
794 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {
795 // An extension of fast_arraycopy_Type which adds type checking.
796 return make_arraycopy_Type(ac_checkcast);
797 }
798
799 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {
800 // This signature is exactly the same as System.arraycopy.
801 // There are no intptr_t (int/long) arguments.
802 return make_arraycopy_Type(ac_slow);
803 }
804
805 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {
806 // This signature is like System.arraycopy, except that it returns status.
807 return make_arraycopy_Type(ac_generic);
808 }
809
810
811 const TypeFunc* OptoRuntime::array_fill_Type() {
812 const Type** fields;
813 int argp = TypeFunc::Parms;
814 // create input type (domain): pointer, int, size_t
815 fields = TypeTuple::fields(3 LP64_ONLY( + 1));
816 fields[argp++] = TypePtr::NOTNULL;
817 fields[argp++] = TypeInt::INT;
818 fields[argp++] = TypeX_X; // size in whatevers (size_t)
819 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
820 const TypeTuple *domain = TypeTuple::make(argp, fields);
821
822 // create result type
823 fields = TypeTuple::fields(1);
824 fields[TypeFunc::Parms+0] = NULL; // void
825 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
826
827 return TypeFunc::make(domain, range);
828 }
829
830 // for aescrypt encrypt/decrypt operations, just three pointers returning void (length is constant)
831 const TypeFunc* OptoRuntime::aescrypt_block_Type() {
832 // create input type (domain)
833 int num_args = 3;
834 if (Matcher::pass_original_key_for_aes()) {
835 num_args = 4;
836 }
837 int argcnt = num_args;
838 const Type** fields = TypeTuple::fields(argcnt);
839 int argp = TypeFunc::Parms;
840 fields[argp++] = TypePtr::NOTNULL; // src
841 fields[argp++] = TypePtr::NOTNULL; // dest
842 fields[argp++] = TypePtr::NOTNULL; // k array
843 if (Matcher::pass_original_key_for_aes()) {
844 fields[argp++] = TypePtr::NOTNULL; // original k array
845 }
846 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
847 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
848
849 // no result type needed
850 fields = TypeTuple::fields(1);
851 fields[TypeFunc::Parms+0] = NULL; // void
852 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
853 return TypeFunc::make(domain, range);
854 }
855
856 /**
857 * int updateBytesCRC32(int crc, byte* b, int len)
858 */
859 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() {
860 // create input type (domain)
861 int num_args = 3;
862 int argcnt = num_args;
863 const Type** fields = TypeTuple::fields(argcnt);
864 int argp = TypeFunc::Parms;
865 fields[argp++] = TypeInt::INT; // crc
866 fields[argp++] = TypePtr::NOTNULL; // src
867 fields[argp++] = TypeInt::INT; // len
868 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
869 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
870
871 // result type needed
872 fields = TypeTuple::fields(1);
873 fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result
874 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
875 return TypeFunc::make(domain, range);
876 }
877
878 /**
879 * int updateBytesCRC32C(int crc, byte* buf, int len, int* table)
880 */
881 const TypeFunc* OptoRuntime::updateBytesCRC32C_Type() {
882 // create input type (domain)
883 int num_args = 4;
884 int argcnt = num_args;
885 const Type** fields = TypeTuple::fields(argcnt);
886 int argp = TypeFunc::Parms;
887 fields[argp++] = TypeInt::INT; // crc
888 fields[argp++] = TypePtr::NOTNULL; // buf
889 fields[argp++] = TypeInt::INT; // len
890 fields[argp++] = TypePtr::NOTNULL; // table
891 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
892 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
893
894 // result type needed
895 fields = TypeTuple::fields(1);
896 fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result
897 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
898 return TypeFunc::make(domain, range);
899 }
900
901 /**
902 * int updateBytesAdler32(int adler, bytes* b, int off, int len)
903 */
904 const TypeFunc* OptoRuntime::updateBytesAdler32_Type() {
905 // create input type (domain)
906 int num_args = 3;
907 int argcnt = num_args;
908 const Type** fields = TypeTuple::fields(argcnt);
909 int argp = TypeFunc::Parms;
910 fields[argp++] = TypeInt::INT; // crc
911 fields[argp++] = TypePtr::NOTNULL; // src + offset
912 fields[argp++] = TypeInt::INT; // len
913 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
914 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
915
916 // result type needed
917 fields = TypeTuple::fields(1);
918 fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result
919 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
920 return TypeFunc::make(domain, range);
921 }
922
923 // for cipherBlockChaining calls of aescrypt encrypt/decrypt, four pointers and a length, returning int
924 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() {
925 // create input type (domain)
926 int num_args = 5;
927 if (Matcher::pass_original_key_for_aes()) {
928 num_args = 6;
929 }
930 int argcnt = num_args;
931 const Type** fields = TypeTuple::fields(argcnt);
932 int argp = TypeFunc::Parms;
933 fields[argp++] = TypePtr::NOTNULL; // src
934 fields[argp++] = TypePtr::NOTNULL; // dest
935 fields[argp++] = TypePtr::NOTNULL; // k array
936 fields[argp++] = TypePtr::NOTNULL; // r array
937 fields[argp++] = TypeInt::INT; // src len
938 if (Matcher::pass_original_key_for_aes()) {
939 fields[argp++] = TypePtr::NOTNULL; // original k array
940 }
941 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
942 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
943
944 // returning cipher len (int)
945 fields = TypeTuple::fields(1);
946 fields[TypeFunc::Parms+0] = TypeInt::INT;
947 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
948 return TypeFunc::make(domain, range);
949 }
950
951 //for counterMode calls of aescrypt encrypt/decrypt, four pointers and a length, returning int
952 const TypeFunc* OptoRuntime::counterMode_aescrypt_Type() {
953 // create input type (domain)
954 int num_args = 5;
955 if (Matcher::pass_original_key_for_aes()) {
956 num_args = 6;
957 }
958 int argcnt = num_args;
959 const Type** fields = TypeTuple::fields(argcnt);
960 int argp = TypeFunc::Parms;
961 fields[argp++] = TypePtr::NOTNULL; // src
962 fields[argp++] = TypePtr::NOTNULL; // dest
963 fields[argp++] = TypePtr::NOTNULL; // k array
964 fields[argp++] = TypePtr::NOTNULL; // counter array
965 fields[argp++] = TypeInt::INT; // src len
966 if (Matcher::pass_original_key_for_aes()) {
967 fields[argp++] = TypePtr::NOTNULL; // original k array
968 }
969 assert(argp == TypeFunc::Parms + argcnt, "correct decoding");
970 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms + argcnt, fields);
971 // returning cipher len (int)
972 fields = TypeTuple::fields(1);
973 fields[TypeFunc::Parms + 0] = TypeInt::INT;
974 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms + 1, fields);
975 return TypeFunc::make(domain, range);
976 }
977
978 /*
979 * void implCompress(byte[] buf, int ofs)
980 */
981 const TypeFunc* OptoRuntime::sha_implCompress_Type() {
982 // create input type (domain)
983 int num_args = 2;
984 int argcnt = num_args;
985 const Type** fields = TypeTuple::fields(argcnt);
986 int argp = TypeFunc::Parms;
987 fields[argp++] = TypePtr::NOTNULL; // buf
988 fields[argp++] = TypePtr::NOTNULL; // state
989 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
990 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
991
992 // no result type needed
993 fields = TypeTuple::fields(1);
994 fields[TypeFunc::Parms+0] = NULL; // void
995 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
996 return TypeFunc::make(domain, range);
997 }
998
999 /*
1000 * int implCompressMultiBlock(byte[] b, int ofs, int limit)
1001 */
1002 const TypeFunc* OptoRuntime::digestBase_implCompressMB_Type() {
1003 // create input type (domain)
1004 int num_args = 4;
1005 int argcnt = num_args;
1006 const Type** fields = TypeTuple::fields(argcnt);
1007 int argp = TypeFunc::Parms;
1008 fields[argp++] = TypePtr::NOTNULL; // buf
1009 fields[argp++] = TypePtr::NOTNULL; // state
1010 fields[argp++] = TypeInt::INT; // ofs
1011 fields[argp++] = TypeInt::INT; // limit
1012 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1013 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1014
1015 // returning ofs (int)
1016 fields = TypeTuple::fields(1);
1017 fields[TypeFunc::Parms+0] = TypeInt::INT; // ofs
1018 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
1019 return TypeFunc::make(domain, range);
1020 }
1021
1022 const TypeFunc* OptoRuntime::multiplyToLen_Type() {
1023 // create input type (domain)
1024 int num_args = 6;
1025 int argcnt = num_args;
1026 const Type** fields = TypeTuple::fields(argcnt);
1027 int argp = TypeFunc::Parms;
1028 fields[argp++] = TypePtr::NOTNULL; // x
1029 fields[argp++] = TypeInt::INT; // xlen
1030 fields[argp++] = TypePtr::NOTNULL; // y
1031 fields[argp++] = TypeInt::INT; // ylen
1032 fields[argp++] = TypePtr::NOTNULL; // z
1033 fields[argp++] = TypeInt::INT; // zlen
1034 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1035 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1036
1037 // no result type needed
1038 fields = TypeTuple::fields(1);
1039 fields[TypeFunc::Parms+0] = NULL;
1040 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
1041 return TypeFunc::make(domain, range);
1042 }
1043
1044 const TypeFunc* OptoRuntime::squareToLen_Type() {
1045 // create input type (domain)
1046 int num_args = 4;
1047 int argcnt = num_args;
1048 const Type** fields = TypeTuple::fields(argcnt);
1049 int argp = TypeFunc::Parms;
1050 fields[argp++] = TypePtr::NOTNULL; // x
1051 fields[argp++] = TypeInt::INT; // len
1052 fields[argp++] = TypePtr::NOTNULL; // z
1053 fields[argp++] = TypeInt::INT; // zlen
1054 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1055 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1056
1057 // no result type needed
1058 fields = TypeTuple::fields(1);
1059 fields[TypeFunc::Parms+0] = NULL;
1060 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
1061 return TypeFunc::make(domain, range);
1062 }
1063
1064 // for mulAdd calls, 2 pointers and 3 ints, returning int
1065 const TypeFunc* OptoRuntime::mulAdd_Type() {
1066 // create input type (domain)
1067 int num_args = 5;
1068 int argcnt = num_args;
1069 const Type** fields = TypeTuple::fields(argcnt);
1070 int argp = TypeFunc::Parms;
1071 fields[argp++] = TypePtr::NOTNULL; // out
1072 fields[argp++] = TypePtr::NOTNULL; // in
1073 fields[argp++] = TypeInt::INT; // offset
1074 fields[argp++] = TypeInt::INT; // len
1075 fields[argp++] = TypeInt::INT; // k
1076 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1077 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1078
1079 // returning carry (int)
1080 fields = TypeTuple::fields(1);
1081 fields[TypeFunc::Parms+0] = TypeInt::INT;
1082 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
1083 return TypeFunc::make(domain, range);
1084 }
1085
1086 const TypeFunc* OptoRuntime::montgomeryMultiply_Type() {
1087 // create input type (domain)
1088 int num_args = 7;
1089 int argcnt = num_args;
1090 const Type** fields = TypeTuple::fields(argcnt);
1091 int argp = TypeFunc::Parms;
1092 fields[argp++] = TypePtr::NOTNULL; // a
1093 fields[argp++] = TypePtr::NOTNULL; // b
1094 fields[argp++] = TypePtr::NOTNULL; // n
1095 fields[argp++] = TypeInt::INT; // len
1096 fields[argp++] = TypeLong::LONG; // inv
1097 fields[argp++] = Type::HALF;
1098 fields[argp++] = TypePtr::NOTNULL; // result
1099 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1100 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1101
1102 // result type needed
1103 fields = TypeTuple::fields(1);
1104 fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;
1105
1106 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
1107 return TypeFunc::make(domain, range);
1108 }
1109
1110 const TypeFunc* OptoRuntime::montgomerySquare_Type() {
1111 // create input type (domain)
1112 int num_args = 6;
1113 int argcnt = num_args;
1114 const Type** fields = TypeTuple::fields(argcnt);
1115 int argp = TypeFunc::Parms;
1116 fields[argp++] = TypePtr::NOTNULL; // a
1117 fields[argp++] = TypePtr::NOTNULL; // n
1118 fields[argp++] = TypeInt::INT; // len
1119 fields[argp++] = TypeLong::LONG; // inv
1120 fields[argp++] = Type::HALF;
1121 fields[argp++] = TypePtr::NOTNULL; // result
1122 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1123 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1124
1125 // result type needed
1126 fields = TypeTuple::fields(1);
1127 fields[TypeFunc::Parms+0] = TypePtr::NOTNULL;
1128
1129 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
1130 return TypeFunc::make(domain, range);
1131 }
1132
1133 // GHASH block processing
1134 const TypeFunc* OptoRuntime::ghash_processBlocks_Type() {
1135 int argcnt = 4;
1136
1137 const Type** fields = TypeTuple::fields(argcnt);
1138 int argp = TypeFunc::Parms;
1139 fields[argp++] = TypePtr::NOTNULL; // state
1140 fields[argp++] = TypePtr::NOTNULL; // subkeyH
1141 fields[argp++] = TypePtr::NOTNULL; // data
1142 fields[argp++] = TypeInt::INT; // blocks
1143 assert(argp == TypeFunc::Parms+argcnt, "correct decoding");
1144 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
1145
1146 // result type needed
1147 fields = TypeTuple::fields(1);
1148 fields[TypeFunc::Parms+0] = NULL; // void
1149 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
1150 return TypeFunc::make(domain, range);
1151 }
1152
1153 //------------- Interpreter state access for on stack replacement
1154 const TypeFunc* OptoRuntime::osr_end_Type() {
1155 // create input type (domain)
1156 const Type **fields = TypeTuple::fields(1);
1157 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf
1158 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
1159
1160 // create result type
1161 fields = TypeTuple::fields(1);
1162 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop
1163 fields[TypeFunc::Parms+0] = NULL; // void
1164 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
1165 return TypeFunc::make(domain, range);
1166 }
1167
1168 //-------------- methodData update helpers
1169
1170 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {
1171 // create input type (domain)
1172 const Type **fields = TypeTuple::fields(2);
1173 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer
1174 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop
1175 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
1176
1177 // create result type
1178 fields = TypeTuple::fields(1);
1179 fields[TypeFunc::Parms+0] = NULL; // void
1180 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
1181 return TypeFunc::make(domain,range);
1182 }
1183
1184 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))
1185 if (receiver == NULL) return;
1186 Klass* receiver_klass = receiver->klass();
1187
1188 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();
1189 int empty_row = -1; // free row, if any is encountered
1190
1191 // ReceiverTypeData* vc = new ReceiverTypeData(mdp);
1192 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {
1193 // if (vc->receiver(row) == receiver_klass)
1194 int receiver_off = ReceiverTypeData::receiver_cell_index(row);
1195 intptr_t row_recv = *(mdp + receiver_off);
1196 if (row_recv == (intptr_t) receiver_klass) {
1197 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);
1198 int count_off = ReceiverTypeData::receiver_count_cell_index(row);
1199 *(mdp + count_off) += DataLayout::counter_increment;
1200 return;
1201 } else if (row_recv == 0) {
1202 // else if (vc->receiver(row) == NULL)
1203 empty_row = (int) row;
1204 }
1205 }
1206
1207 if (empty_row != -1) {
1208 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);
1209 // vc->set_receiver(empty_row, receiver_klass);
1210 *(mdp + receiver_off) = (intptr_t) receiver_klass;
1211 // vc->set_receiver_count(empty_row, DataLayout::counter_increment);
1212 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);
1213 *(mdp + count_off) = DataLayout::counter_increment;
1214 } else {
1215 // Receiver did not match any saved receiver and there is no empty row for it.
1216 // Increment total counter to indicate polymorphic case.
1217 intptr_t* count_p = (intptr_t*)(((uint8_t*)(data)) + in_bytes(CounterData::count_offset()));
1218 *count_p += DataLayout::counter_increment;
1219 }
1220 JRT_END
1221
1222 //-------------------------------------------------------------------------------------
1223 // register policy
1224
1225 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {
1226 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");
1227 switch (register_save_policy[reg]) {
1228 case 'C': return false; //SOC
1229 case 'E': return true ; //SOE
1230 case 'N': return false; //NS
1231 case 'A': return false; //AS
1232 }
1233 ShouldNotReachHere();
1234 return false;
1235 }
1236
1237 //-----------------------------------------------------------------------
1238 // Exceptions
1239 //
1240
1241 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;
1242
1243 // The method is an entry that is always called by a C++ method not
1244 // directly from compiled code. Compiled code will call the C++ method following.
1245 // We can't allow async exception to be installed during exception processing.
1246 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))
1247
1248 // Do not confuse exception_oop with pending_exception. The exception_oop
1249 // is only used to pass arguments into the method. Not for general
1250 // exception handling. DO NOT CHANGE IT to use pending_exception, since
1251 // the runtime stubs checks this on exit.
1252 assert(thread->exception_oop() != NULL, "exception oop is found");
1253 address handler_address = NULL;
1254
1255 Handle exception(thread, thread->exception_oop());
1256 address pc = thread->exception_pc();
1257
1258 // Clear out the exception oop and pc since looking up an
1259 // exception handler can cause class loading, which might throw an
1260 // exception and those fields are expected to be clear during
1261 // normal bytecode execution.
1262 thread->clear_exception_oop_and_pc();
1263
1264 if (TraceExceptions) {
1265 trace_exception(exception(), pc, "");
1266 }
1267
1268 // for AbortVMOnException flag
1269 Exceptions::debug_check_abort(exception);
1270
1271 #ifdef ASSERT
1272 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
1273 // should throw an exception here
1274 ShouldNotReachHere();
1275 }
1276 #endif
1277
1278 // new exception handling: this method is entered only from adapters
1279 // exceptions from compiled java methods are handled in compiled code
1280 // using rethrow node
1281
1282 nm = CodeCache::find_nmethod(pc);
1283 assert(nm != NULL, "No NMethod found");
1284 if (nm->is_native_method()) {
1285 fatal("Native method should not have path to exception handling");
1286 } else {
1287 // we are switching to old paradigm: search for exception handler in caller_frame
1288 // instead in exception handler of caller_frame.sender()
1289
1290 if (JvmtiExport::can_post_on_exceptions()) {
1291 // "Full-speed catching" is not necessary here,
1292 // since we're notifying the VM on every catch.
1293 // Force deoptimization and the rest of the lookup
1294 // will be fine.
1295 deoptimize_caller_frame(thread);
1296 }
1297
1298 // Check the stack guard pages. If enabled, look for handler in this frame;
1299 // otherwise, forcibly unwind the frame.
1300 //
1301 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.
1302 bool force_unwind = !thread->reguard_stack();
1303 bool deopting = false;
1304 if (nm->is_deopt_pc(pc)) {
1305 deopting = true;
1306 RegisterMap map(thread, false);
1307 frame deoptee = thread->last_frame().sender(&map);
1308 assert(deoptee.is_deoptimized_frame(), "must be deopted");
1309 // Adjust the pc back to the original throwing pc
1310 pc = deoptee.pc();
1311 }
1312
1313 // If we are forcing an unwind because of stack overflow then deopt is
1314 // irrelevant since we are throwing the frame away anyway.
1315
1316 if (deopting && !force_unwind) {
1317 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
1318 } else {
1319
1320 handler_address =
1321 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
1322
1323 if (handler_address == NULL) {
1324 Handle original_exception(thread, exception());
1325 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
1326 assert (handler_address != NULL, "must have compiled handler");
1327 // Update the exception cache only when the unwind was not forced
1328 // and there didn't happen another exception during the computation of the
1329 // compiled exception handler.
1330 if (!force_unwind && original_exception() == exception()) {
1331 nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
1332 }
1333 } else {
1334 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
1335 }
1336 }
1337
1338 thread->set_exception_pc(pc);
1339 thread->set_exception_handler_pc(handler_address);
1340
1341 // Check if the exception PC is a MethodHandle call site.
1342 thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
1343 }
1344
1345 // Restore correct return pc. Was saved above.
1346 thread->set_exception_oop(exception());
1347 return handler_address;
1348
1349 JRT_END
1350
1351 // We are entering here from exception_blob
1352 // If there is a compiled exception handler in this method, we will continue there;
1353 // otherwise we will unwind the stack and continue at the caller of top frame method
1354 // Note we enter without the usual JRT wrapper. We will call a helper routine that
1355 // will do the normal VM entry. We do it this way so that we can see if the nmethod
1356 // we looked up the handler for has been deoptimized in the meantime. If it has been
1357 // we must not use the handler and instead return the deopt blob.
1358 address OptoRuntime::handle_exception_C(JavaThread* thread) {
1359 //
1360 // We are in Java not VM and in debug mode we have a NoHandleMark
1361 //
1362 #ifndef PRODUCT
1363 SharedRuntime::_find_handler_ctr++; // find exception handler
1364 #endif
1365 debug_only(NoHandleMark __hm;)
1366 nmethod* nm = NULL;
1367 address handler_address = NULL;
1368 {
1369 // Enter the VM
1370
1371 ResetNoHandleMark rnhm;
1372 handler_address = handle_exception_C_helper(thread, nm);
1373 }
1374
1375 // Back in java: Use no oops, DON'T safepoint
1376
1377 // Now check to see if the handler we are returning is in a now
1378 // deoptimized frame
1379
1380 if (nm != NULL) {
1381 RegisterMap map(thread, false);
1382 frame caller = thread->last_frame().sender(&map);
1383 #ifdef ASSERT
1384 assert(caller.is_compiled_frame(), "must be");
1385 #endif // ASSERT
1386 if (caller.is_deoptimized_frame()) {
1387 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
1388 }
1389 }
1390 return handler_address;
1391 }
1392
1393 //------------------------------rethrow----------------------------------------
1394 // We get here after compiled code has executed a 'RethrowNode'. The callee
1395 // is either throwing or rethrowing an exception. The callee-save registers
1396 // have been restored, synchronized objects have been unlocked and the callee
1397 // stack frame has been removed. The return address was passed in.
1398 // Exception oop is passed as the 1st argument. This routine is then called
1399 // from the stub. On exit, we know where to jump in the caller's code.
1400 // After this C code exits, the stub will pop his frame and end in a jump
1401 // (instead of a return). We enter the caller's default handler.
1402 //
1403 // This must be JRT_LEAF:
1404 // - caller will not change its state as we cannot block on exit,
1405 // therefore raw_exception_handler_for_return_address is all it takes
1406 // to handle deoptimized blobs
1407 //
1408 // However, there needs to be a safepoint check in the middle! So compiled
1409 // safepoints are completely watertight.
1410 //
1411 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.
1412 //
1413 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*
1414 //
1415 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {
1416 #ifndef PRODUCT
1417 SharedRuntime::_rethrow_ctr++; // count rethrows
1418 #endif
1419 assert (exception != NULL, "should have thrown a NULLPointerException");
1420 #ifdef ASSERT
1421 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
1422 // should throw an exception here
1423 ShouldNotReachHere();
1424 }
1425 #endif
1426
1427 thread->set_vm_result(exception);
1428 // Frame not compiled (handles deoptimization blob)
1429 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc);
1430 }
1431
1432
1433 const TypeFunc *OptoRuntime::rethrow_Type() {
1434 // create input type (domain)
1435 const Type **fields = TypeTuple::fields(1);
1436 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
1437 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
1438
1439 // create result type (range)
1440 fields = TypeTuple::fields(1);
1441 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
1442 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
1443
1444 return TypeFunc::make(domain, range);
1445 }
1446
1447
1448 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {
1449 // Deoptimize the caller before continuing, as the compiled
1450 // exception handler table may not be valid.
1451 if (!StressCompiledExceptionHandlers && doit) {
1452 deoptimize_caller_frame(thread);
1453 }
1454 }
1455
1456 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) {
1457 // Called from within the owner thread, so no need for safepoint
1458 RegisterMap reg_map(thread);
1459 frame stub_frame = thread->last_frame();
1460 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
1461 frame caller_frame = stub_frame.sender(®_map);
1462
1463 // Deoptimize the caller frame.
1464 Deoptimization::deoptimize_frame(thread, caller_frame.id());
1465 }
1466
1467
1468 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) {
1469 // Called from within the owner thread, so no need for safepoint
1470 RegisterMap reg_map(thread);
1471 frame stub_frame = thread->last_frame();
1472 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
1473 frame caller_frame = stub_frame.sender(®_map);
1474 return caller_frame.is_deoptimized_frame();
1475 }
1476
1477
1478 const TypeFunc *OptoRuntime::register_finalizer_Type() {
1479 // create input type (domain)
1480 const Type **fields = TypeTuple::fields(1);
1481 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver
1482 // // The JavaThread* is passed to each routine as the last argument
1483 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread
1484 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
1485
1486 // create result type (range)
1487 fields = TypeTuple::fields(0);
1488
1489 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
1490
1491 return TypeFunc::make(domain,range);
1492 }
1493
1494
1495 //-----------------------------------------------------------------------------
1496 // Dtrace support. entry and exit probes have the same signature
1497 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {
1498 // create input type (domain)
1499 const Type **fields = TypeTuple::fields(2);
1500 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
1501 fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM; // Method*; Method we are entering
1502 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
1503
1504 // create result type (range)
1505 fields = TypeTuple::fields(0);
1506
1507 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
1508
1509 return TypeFunc::make(domain,range);
1510 }
1511
1512 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {
1513 // create input type (domain)
1514 const Type **fields = TypeTuple::fields(2);
1515 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
1516 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object
1517
1518 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
1519
1520 // create result type (range)
1521 fields = TypeTuple::fields(0);
1522
1523 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
1524
1525 return TypeFunc::make(domain,range);
1526 }
1527
1528
1529 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))
1530 assert(obj->is_oop(), "must be a valid oop");
1531 assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise");
1532 InstanceKlass::register_finalizer(instanceOop(obj), CHECK);
1533 JRT_END
1534
1535 //-----------------------------------------------------------------------------
1536
1537 NamedCounter * volatile OptoRuntime::_named_counters = NULL;
1538
1539 //
1540 // dump the collected NamedCounters.
1541 //
1542 void OptoRuntime::print_named_counters() {
1543 int total_lock_count = 0;
1544 int eliminated_lock_count = 0;
1545
1546 NamedCounter* c = _named_counters;
1547 while (c) {
1548 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {
1549 int count = c->count();
1550 if (count > 0) {
1551 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;
1552 if (Verbose) {
1553 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");
1554 }
1555 total_lock_count += count;
1556 if (eliminated) {
1557 eliminated_lock_count += count;
1558 }
1559 }
1560 } else if (c->tag() == NamedCounter::BiasedLockingCounter) {
1561 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();
1562 if (blc->nonzero()) {
1563 tty->print_cr("%s", c->name());
1564 blc->print_on(tty);
1565 }
1566 #if INCLUDE_RTM_OPT
1567 } else if (c->tag() == NamedCounter::RTMLockingCounter) {
1568 RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters();
1569 if (rlc->nonzero()) {
1570 tty->print_cr("%s", c->name());
1571 rlc->print_on(tty);
1572 }
1573 #endif
1574 }
1575 c = c->next();
1576 }
1577 if (total_lock_count > 0) {
1578 tty->print_cr("dynamic locks: %d", total_lock_count);
1579 if (eliminated_lock_count) {
1580 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,
1581 (int)(eliminated_lock_count * 100.0 / total_lock_count));
1582 }
1583 }
1584 }
1585
1586 //
1587 // Allocate a new NamedCounter. The JVMState is used to generate the
1588 // name which consists of method@line for the inlining tree.
1589 //
1590
1591 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {
1592 int max_depth = youngest_jvms->depth();
1593
1594 // Visit scopes from youngest to oldest.
1595 bool first = true;
1596 stringStream st;
1597 for (int depth = max_depth; depth >= 1; depth--) {
1598 JVMState* jvms = youngest_jvms->of_depth(depth);
1599 ciMethod* m = jvms->has_method() ? jvms->method() : NULL;
1600 if (!first) {
1601 st.print(" ");
1602 } else {
1603 first = false;
1604 }
1605 int bci = jvms->bci();
1606 if (bci < 0) bci = 0;
1607 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);
1608 // To print linenumbers instead of bci use: m->line_number_from_bci(bci)
1609 }
1610 NamedCounter* c;
1611 if (tag == NamedCounter::BiasedLockingCounter) {
1612 c = new BiasedLockingNamedCounter(st.as_string());
1613 } else if (tag == NamedCounter::RTMLockingCounter) {
1614 c = new RTMLockingNamedCounter(st.as_string());
1615 } else {
1616 c = new NamedCounter(st.as_string(), tag);
1617 }
1618
1619 // atomically add the new counter to the head of the list. We only
1620 // add counters so this is safe.
1621 NamedCounter* head;
1622 do {
1623 c->set_next(NULL);
1624 head = _named_counters;
1625 c->set_next(head);
1626 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);
1627 return c;
1628 }
1629
1630 //-----------------------------------------------------------------------------
1631 // Non-product code
1632 #ifndef PRODUCT
1633
1634 int trace_exception_counter = 0;
1635 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {
1636 ttyLocker ttyl;
1637 trace_exception_counter++;
1638 tty->print("%d [Exception (%s): ", trace_exception_counter, msg);
1639 exception_oop->print_value();
1640 tty->print(" in ");
1641 CodeBlob* blob = CodeCache::find_blob(exception_pc);
1642 if (blob->is_nmethod()) {
1643 nmethod* nm = blob->as_nmethod_or_null();
1644 nm->method()->print_value();
1645 } else if (blob->is_runtime_stub()) {
1646 tty->print("<runtime-stub>");
1647 } else {
1648 tty->print("<unknown>");
1649 }
1650 tty->print(" at " INTPTR_FORMAT, p2i(exception_pc));
1651 tty->print_cr("]");
1652 }
1653
1654 #endif // PRODUCT
1655