Mercurial > hg > truffle
annotate src/share/vm/opto/runtime.cpp @ 1166:7b0e9cba0307
6896647: card marks can be deferred too long
Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc
author | ysr |
---|---|
date | Wed, 13 Jan 2010 15:26:39 -0800 |
parents | 4ce7240d622c |
children | 87684f1a88b5 6deeaebad47a |
rev | line source |
---|---|
0 | 1 /* |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1027
diff
changeset
|
2 * Copyright 1998-2009 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_runtime.cpp.incl" | |
27 | |
28 | |
29 // For debugging purposes: | |
30 // To force FullGCALot inside a runtime function, add the following two lines | |
31 // | |
32 // Universe::release_fullgc_alot_dummy(); | |
33 // MarkSweep::invoke(0, "Debugging"); | |
34 // | |
35 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 | |
36 | |
37 | |
38 | |
39 | |
40 // Compiled code entry points | |
41 address OptoRuntime::_new_instance_Java = NULL; | |
42 address OptoRuntime::_new_array_Java = NULL; | |
43 address OptoRuntime::_multianewarray2_Java = NULL; | |
44 address OptoRuntime::_multianewarray3_Java = NULL; | |
45 address OptoRuntime::_multianewarray4_Java = NULL; | |
46 address OptoRuntime::_multianewarray5_Java = NULL; | |
342 | 47 address OptoRuntime::_g1_wb_pre_Java = NULL; |
48 address OptoRuntime::_g1_wb_post_Java = NULL; | |
0 | 49 address OptoRuntime::_vtable_must_compile_Java = NULL; |
50 address OptoRuntime::_complete_monitor_locking_Java = NULL; | |
51 address OptoRuntime::_rethrow_Java = NULL; | |
52 | |
53 address OptoRuntime::_slow_arraycopy_Java = NULL; | |
54 address OptoRuntime::_register_finalizer_Java = NULL; | |
55 | |
56 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
57 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; | |
58 address OptoRuntime::_zap_dead_native_locals_Java = NULL; | |
59 # endif | |
60 | |
61 | |
62 // This should be called in an assertion at the start of OptoRuntime routines | |
63 // which are entered from compiled code (all of them) | |
64 #ifndef PRODUCT | |
65 static bool check_compiled_frame(JavaThread* thread) { | |
66 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
67 #ifdef ASSERT | |
68 RegisterMap map(thread, false); | |
69 frame caller = thread->last_frame().sender(&map); | |
70 assert(caller.is_compiled_frame(), "not being called from compiled like code"); | |
71 #endif /* ASSERT */ | |
72 return true; | |
73 } | |
74 #endif | |
75 | |
76 | |
77 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ | |
78 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc) | |
79 | |
80 void OptoRuntime::generate(ciEnv* env) { | |
81 | |
82 generate_exception_blob(); | |
83 | |
84 // Note: tls: Means fetching the return oop out of the thread-local storage | |
85 // | |
86 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc | |
87 // ------------------------------------------------------------------------------------------------------------------------------- | |
88 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); | |
89 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); | |
90 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); | |
91 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); | |
92 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); | |
93 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); | |
342 | 94 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
95 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); | |
0 | 96 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false); |
97 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); | |
98 | |
99 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); | |
100 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); | |
101 | |
102 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
103 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); | |
104 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); | |
105 # endif | |
106 | |
107 } | |
108 | |
109 #undef gen | |
110 | |
111 | |
112 // Helper method to do generation of RunTimeStub's | |
113 address OptoRuntime::generate_stub( ciEnv* env, | |
114 TypeFunc_generator gen, address C_function, | |
115 const char *name, int is_fancy_jump, | |
116 bool pass_tls, | |
117 bool save_argument_registers, | |
118 bool return_pc ) { | |
119 ResourceMark rm; | |
120 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); | |
121 return C.stub_entry_point(); | |
122 } | |
123 | |
124 const char* OptoRuntime::stub_name(address entry) { | |
125 #ifndef PRODUCT | |
126 CodeBlob* cb = CodeCache::find_blob(entry); | |
127 RuntimeStub* rs =(RuntimeStub *)cb; | |
128 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); | |
129 return rs->name(); | |
130 #else | |
131 // Fast implementation for product mode (maybe it should be inlined too) | |
132 return "runtime stub"; | |
133 #endif | |
134 } | |
135 | |
136 | |
137 //============================================================================= | |
138 // Opto compiler runtime routines | |
139 //============================================================================= | |
140 | |
141 | |
142 //=============================allocation====================================== | |
143 // We failed the fast-path allocation. Now we need to do a scavenge or GC | |
144 // and try allocation again. | |
145 | |
1166 | 146 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { |
0 | 147 // After any safepoint, just before going back to compiled code, |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
148 // we inform the GC that we will be doing initializing writes to |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
149 // this object in the future without emitting card-marks, so |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
150 // GC may take any compensating steps. |
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
151 // NOTE: Keep this code consistent with GraphKit::store_barrier. |
0 | 152 |
153 oop new_obj = thread->vm_result(); | |
154 if (new_obj == NULL) return; | |
155 | |
156 assert(Universe::heap()->can_elide_tlab_store_barriers(), | |
157 "compiler must check this first"); | |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
158 // GC may decide to give back a safer copy of new_obj. |
1166 | 159 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); |
0 | 160 thread->set_vm_result(new_obj); |
161 } | |
162 | |
163 // object allocation | |
164 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread)) | |
165 JRT_BLOCK; | |
166 #ifndef PRODUCT | |
167 SharedRuntime::_new_instance_ctr++; // new instance requires GC | |
168 #endif | |
169 assert(check_compiled_frame(thread), "incorrect caller"); | |
170 | |
171 // These checks are cheap to make and support reflective allocation. | |
172 int lh = Klass::cast(klass)->layout_helper(); | |
173 if (Klass::layout_helper_needs_slow_path(lh) | |
174 || !instanceKlass::cast(klass)->is_initialized()) { | |
175 KlassHandle kh(THREAD, klass); | |
176 kh->check_valid_for_instantiation(false, THREAD); | |
177 if (!HAS_PENDING_EXCEPTION) { | |
178 instanceKlass::cast(kh())->initialize(THREAD); | |
179 } | |
180 if (!HAS_PENDING_EXCEPTION) { | |
181 klass = kh(); | |
182 } else { | |
183 klass = NULL; | |
184 } | |
185 } | |
186 | |
187 if (klass != NULL) { | |
188 // Scavenge and allocate an instance. | |
189 oop result = instanceKlass::cast(klass)->allocate_instance(THREAD); | |
190 thread->set_vm_result(result); | |
191 | |
192 // Pass oops back through thread local storage. Our apparent type to Java | |
193 // is that we return an oop, but we can block on exit from this routine and | |
194 // a GC can trash the oop in C's return register. The generated stub will | |
195 // fetch the oop from TLS after any possible GC. | |
196 } | |
197 | |
198 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
199 JRT_BLOCK_END; | |
200 | |
201 if (GraphKit::use_ReduceInitialCardMarks()) { | |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
202 // inform GC that we won't do card marks for initializing writes. |
1166 | 203 new_store_pre_barrier(thread); |
0 | 204 } |
205 JRT_END | |
206 | |
207 | |
208 // array allocation | |
209 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread)) | |
210 JRT_BLOCK; | |
211 #ifndef PRODUCT | |
212 SharedRuntime::_new_array_ctr++; // new array requires GC | |
213 #endif | |
214 assert(check_compiled_frame(thread), "incorrect caller"); | |
215 | |
216 // Scavenge and allocate an instance. | |
217 oop result; | |
218 | |
219 if (Klass::cast(array_type)->oop_is_typeArray()) { | |
220 // The oopFactory likes to work with the element type. | |
221 // (We could bypass the oopFactory, since it doesn't add much value.) | |
222 BasicType elem_type = typeArrayKlass::cast(array_type)->element_type(); | |
223 result = oopFactory::new_typeArray(elem_type, len, THREAD); | |
224 } else { | |
225 // Although the oopFactory likes to work with the elem_type, | |
226 // the compiler prefers the array_type, since it must already have | |
227 // that latter value in hand for the fast path. | |
228 klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass(); | |
229 result = oopFactory::new_objArray(elem_type, len, THREAD); | |
230 } | |
231 | |
232 // Pass oops back through thread local storage. Our apparent type to Java | |
233 // is that we return an oop, but we can block on exit from this routine and | |
234 // a GC can trash the oop in C's return register. The generated stub will | |
235 // fetch the oop from TLS after any possible GC. | |
236 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
237 thread->set_vm_result(result); | |
238 JRT_BLOCK_END; | |
239 | |
240 if (GraphKit::use_ReduceInitialCardMarks()) { | |
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
605
diff
changeset
|
241 // inform GC that we won't do card marks for initializing writes. |
1166 | 242 new_store_pre_barrier(thread); |
0 | 243 } |
244 JRT_END | |
245 | |
246 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. | |
247 | |
248 // multianewarray for 2 dimensions | |
249 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread)) | |
250 #ifndef PRODUCT | |
251 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
252 #endif | |
253 assert(check_compiled_frame(thread), "incorrect caller"); | |
254 assert(oop(elem_type)->is_klass(), "not a class"); | |
255 jint dims[2]; | |
256 dims[0] = len1; | |
257 dims[1] = len2; | |
258 oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); | |
259 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
260 thread->set_vm_result(obj); | |
261 JRT_END | |
262 | |
263 // multianewarray for 3 dimensions | |
264 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread)) | |
265 #ifndef PRODUCT | |
266 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
267 #endif | |
268 assert(check_compiled_frame(thread), "incorrect caller"); | |
269 assert(oop(elem_type)->is_klass(), "not a class"); | |
270 jint dims[3]; | |
271 dims[0] = len1; | |
272 dims[1] = len2; | |
273 dims[2] = len3; | |
274 oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); | |
275 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
276 thread->set_vm_result(obj); | |
277 JRT_END | |
278 | |
279 // multianewarray for 4 dimensions | |
280 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) | |
281 #ifndef PRODUCT | |
282 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
283 #endif | |
284 assert(check_compiled_frame(thread), "incorrect caller"); | |
285 assert(oop(elem_type)->is_klass(), "not a class"); | |
286 jint dims[4]; | |
287 dims[0] = len1; | |
288 dims[1] = len2; | |
289 dims[2] = len3; | |
290 dims[3] = len4; | |
291 oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); | |
292 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
293 thread->set_vm_result(obj); | |
294 JRT_END | |
295 | |
296 // multianewarray for 5 dimensions | |
297 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) | |
298 #ifndef PRODUCT | |
299 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
300 #endif | |
301 assert(check_compiled_frame(thread), "incorrect caller"); | |
302 assert(oop(elem_type)->is_klass(), "not a class"); | |
303 jint dims[5]; | |
304 dims[0] = len1; | |
305 dims[1] = len2; | |
306 dims[2] = len3; | |
307 dims[3] = len4; | |
308 dims[4] = len5; | |
309 oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); | |
310 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
311 thread->set_vm_result(obj); | |
312 JRT_END | |
313 | |
314 const TypeFunc *OptoRuntime::new_instance_Type() { | |
315 // create input type (domain) | |
316 const Type **fields = TypeTuple::fields(1); | |
317 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
318 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
319 | |
320 // create result type (range) | |
321 fields = TypeTuple::fields(1); | |
322 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
323 | |
324 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
325 | |
326 return TypeFunc::make(domain, range); | |
327 } | |
328 | |
329 | |
330 const TypeFunc *OptoRuntime::athrow_Type() { | |
331 // create input type (domain) | |
332 const Type **fields = TypeTuple::fields(1); | |
333 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
334 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
335 | |
336 // create result type (range) | |
337 fields = TypeTuple::fields(0); | |
338 | |
339 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
340 | |
341 return TypeFunc::make(domain, range); | |
342 } | |
343 | |
344 | |
345 const TypeFunc *OptoRuntime::new_array_Type() { | |
346 // create input type (domain) | |
347 const Type **fields = TypeTuple::fields(2); | |
348 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
349 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
350 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
351 | |
352 // create result type (range) | |
353 fields = TypeTuple::fields(1); | |
354 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
355 | |
356 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
357 | |
358 return TypeFunc::make(domain, range); | |
359 } | |
360 | |
361 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
362 // create input type (domain) | |
363 const int nargs = ndim + 1; | |
364 const Type **fields = TypeTuple::fields(nargs); | |
365 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
366 for( int i = 1; i < nargs; i++ ) | |
367 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
368 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
369 | |
370 // create result type (range) | |
371 fields = TypeTuple::fields(1); | |
372 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
373 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
374 | |
375 return TypeFunc::make(domain, range); | |
376 } | |
377 | |
378 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
379 return multianewarray_Type(2); | |
380 } | |
381 | |
382 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
383 return multianewarray_Type(3); | |
384 } | |
385 | |
386 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
387 return multianewarray_Type(4); | |
388 } | |
389 | |
390 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
391 return multianewarray_Type(5); | |
392 } | |
393 | |
342 | 394 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
395 const Type **fields = TypeTuple::fields(2); | |
396 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
397 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
398 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
399 | |
400 // create result type (range) | |
401 fields = TypeTuple::fields(0); | |
402 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
403 | |
404 return TypeFunc::make(domain, range); | |
405 } | |
406 | |
407 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
408 | |
409 const Type **fields = TypeTuple::fields(2); | |
410 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
411 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
412 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
413 | |
414 // create result type (range) | |
415 fields = TypeTuple::fields(0); | |
416 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
417 | |
418 return TypeFunc::make(domain, range); | |
419 } | |
420 | |
0 | 421 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
422 // create input type (domain) | |
423 const Type **fields = TypeTuple::fields(1); | |
424 // symbolOop name of class to be loaded | |
425 fields[TypeFunc::Parms+0] = TypeInt::INT; | |
426 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
427 | |
428 // create result type (range) | |
429 fields = TypeTuple::fields(0); | |
430 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
431 | |
432 return TypeFunc::make(domain, range); | |
433 } | |
434 | |
435 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
436 // Type used for stub generation for zap_dead_locals. | |
437 // No inputs or outputs | |
438 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
439 // create input type (domain) | |
440 const Type **fields = TypeTuple::fields(0); | |
441 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
442 | |
443 // create result type (range) | |
444 fields = TypeTuple::fields(0); | |
445 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
446 | |
447 return TypeFunc::make(domain,range); | |
448 } | |
449 # endif | |
450 | |
451 | |
452 //----------------------------------------------------------------------------- | |
453 // Monitor Handling | |
454 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
455 // create input type (domain) | |
456 const Type **fields = TypeTuple::fields(2); | |
457 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
458 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
459 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
460 | |
461 // create result type (range) | |
462 fields = TypeTuple::fields(0); | |
463 | |
464 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
465 | |
466 return TypeFunc::make(domain,range); | |
467 } | |
468 | |
469 | |
470 //----------------------------------------------------------------------------- | |
471 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
472 // create input type (domain) | |
473 const Type **fields = TypeTuple::fields(2); | |
474 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
475 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
476 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
477 | |
478 // create result type (range) | |
479 fields = TypeTuple::fields(0); | |
480 | |
481 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
482 | |
483 return TypeFunc::make(domain,range); | |
484 } | |
485 | |
486 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
487 // create input type (domain) | |
488 const Type** fields = TypeTuple::fields(1); | |
489 fields[TypeFunc::Parms+0] = NULL; // void | |
490 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
491 | |
492 // create result type | |
493 fields = TypeTuple::fields(1); | |
494 fields[TypeFunc::Parms+0] = NULL; // void | |
495 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
496 | |
497 return TypeFunc::make(domain, range); | |
498 } | |
499 | |
500 const TypeFunc* OptoRuntime::l2f_Type() { | |
501 // create input type (domain) | |
502 const Type **fields = TypeTuple::fields(2); | |
503 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
504 fields[TypeFunc::Parms+1] = Type::HALF; | |
505 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
506 | |
507 // create result type (range) | |
508 fields = TypeTuple::fields(1); | |
509 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
510 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
511 | |
512 return TypeFunc::make(domain, range); | |
513 } | |
514 | |
515 const TypeFunc* OptoRuntime::modf_Type() { | |
516 const Type **fields = TypeTuple::fields(2); | |
517 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
518 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
519 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
520 | |
521 // create result type (range) | |
522 fields = TypeTuple::fields(1); | |
523 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
524 | |
525 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
526 | |
527 return TypeFunc::make(domain, range); | |
528 } | |
529 | |
530 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
531 // create input type (domain) | |
532 const Type **fields = TypeTuple::fields(2); | |
533 // symbolOop name of class to be loaded | |
534 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
535 fields[TypeFunc::Parms+1] = Type::HALF; | |
536 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
537 | |
538 // create result type (range) | |
539 fields = TypeTuple::fields(2); | |
540 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
541 fields[TypeFunc::Parms+1] = Type::HALF; | |
542 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
543 | |
544 return TypeFunc::make(domain, range); | |
545 } | |
546 | |
547 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
548 const Type **fields = TypeTuple::fields(4); | |
549 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
550 fields[TypeFunc::Parms+1] = Type::HALF; | |
551 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
552 fields[TypeFunc::Parms+3] = Type::HALF; | |
553 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
554 | |
555 // create result type (range) | |
556 fields = TypeTuple::fields(2); | |
557 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
558 fields[TypeFunc::Parms+1] = Type::HALF; | |
559 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
560 | |
561 return TypeFunc::make(domain, range); | |
562 } | |
563 | |
564 //-------------- currentTimeMillis | |
565 | |
566 const TypeFunc* OptoRuntime::current_time_millis_Type() { | |
567 // create input type (domain) | |
568 const Type **fields = TypeTuple::fields(0); | |
569 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
570 | |
571 // create result type (range) | |
572 fields = TypeTuple::fields(2); | |
573 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
574 fields[TypeFunc::Parms+1] = Type::HALF; | |
575 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
576 | |
577 return TypeFunc::make(domain, range); | |
578 } | |
579 | |
580 // arraycopy stub variations: | |
581 enum ArrayCopyType { | |
582 ac_fast, // void(ptr, ptr, size_t) | |
583 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
584 ac_slow, // void(ptr, int, ptr, int, int) | |
585 ac_generic // int(ptr, int, ptr, int, int) | |
586 }; | |
587 | |
588 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
589 // create input type (domain) | |
590 int num_args = (act == ac_fast ? 3 : 5); | |
591 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
592 int argcnt = num_args; | |
593 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
594 const Type** fields = TypeTuple::fields(argcnt); | |
595 int argp = TypeFunc::Parms; | |
596 fields[argp++] = TypePtr::NOTNULL; // src | |
597 if (num_size_args == 0) { | |
598 fields[argp++] = TypeInt::INT; // src_pos | |
599 } | |
600 fields[argp++] = TypePtr::NOTNULL; // dest | |
601 if (num_size_args == 0) { | |
602 fields[argp++] = TypeInt::INT; // dest_pos | |
603 fields[argp++] = TypeInt::INT; // length | |
604 } | |
605 while (num_size_args-- > 0) { | |
606 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
607 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
608 } | |
609 if (act == ac_checkcast) { | |
610 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
611 } | |
612 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
613 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
614 | |
615 // create result type if needed | |
616 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
617 fields = TypeTuple::fields(1); | |
618 if (retcnt == 0) | |
619 fields[TypeFunc::Parms+0] = NULL; // void | |
620 else | |
621 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
622 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
623 return TypeFunc::make(domain, range); | |
624 } | |
625 | |
626 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
627 // This signature is simple: Two base pointers and a size_t. | |
628 return make_arraycopy_Type(ac_fast); | |
629 } | |
630 | |
631 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
632 // An extension of fast_arraycopy_Type which adds type checking. | |
633 return make_arraycopy_Type(ac_checkcast); | |
634 } | |
635 | |
636 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
637 // This signature is exactly the same as System.arraycopy. | |
638 // There are no intptr_t (int/long) arguments. | |
639 return make_arraycopy_Type(ac_slow); | |
640 } | |
641 | |
642 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
643 // This signature is like System.arraycopy, except that it returns status. | |
644 return make_arraycopy_Type(ac_generic); | |
645 } | |
646 | |
647 | |
648 //------------- Interpreter state access for on stack replacement | |
649 const TypeFunc* OptoRuntime::osr_end_Type() { | |
650 // create input type (domain) | |
651 const Type **fields = TypeTuple::fields(1); | |
652 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
653 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
654 | |
655 // create result type | |
656 fields = TypeTuple::fields(1); | |
657 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
658 fields[TypeFunc::Parms+0] = NULL; // void | |
659 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
660 return TypeFunc::make(domain, range); | |
661 } | |
662 | |
663 //-------------- methodData update helpers | |
664 | |
665 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
666 // create input type (domain) | |
667 const Type **fields = TypeTuple::fields(2); | |
668 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
669 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
670 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
671 | |
672 // create result type | |
673 fields = TypeTuple::fields(1); | |
674 fields[TypeFunc::Parms+0] = NULL; // void | |
675 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
676 return TypeFunc::make(domain,range); | |
677 } | |
678 | |
679 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
680 if (receiver == NULL) return; | |
681 klassOop receiver_klass = receiver->klass(); | |
682 | |
683 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
684 int empty_row = -1; // free row, if any is encountered | |
685 | |
686 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
687 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
688 // if (vc->receiver(row) == receiver_klass) | |
689 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
690 intptr_t row_recv = *(mdp + receiver_off); | |
691 if (row_recv == (intptr_t) receiver_klass) { | |
692 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
693 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
694 *(mdp + count_off) += DataLayout::counter_increment; | |
695 return; | |
696 } else if (row_recv == 0) { | |
697 // else if (vc->receiver(row) == NULL) | |
698 empty_row = (int) row; | |
699 } | |
700 } | |
701 | |
702 if (empty_row != -1) { | |
703 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
704 // vc->set_receiver(empty_row, receiver_klass); | |
705 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
706 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
707 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
708 *(mdp + count_off) = DataLayout::counter_increment; | |
709 } | |
710 JRT_END | |
711 | |
712 //----------------------------------------------------------------------------- | |
713 // implicit exception support. | |
714 | |
715 static void report_null_exception_in_code_cache(address exception_pc) { | |
716 ResourceMark rm; | |
717 CodeBlob* n = CodeCache::find_blob(exception_pc); | |
718 if (n != NULL) { | |
719 tty->print_cr("#"); | |
720 tty->print_cr("# HotSpot Runtime Error, null exception in generated code"); | |
721 tty->print_cr("#"); | |
722 tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc); | |
723 | |
724 if (n->is_nmethod()) { | |
725 methodOop method = ((nmethod*)n)->method(); | |
726 tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string()); | |
727 tty->print_cr("#"); | |
728 if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) { | |
729 const char* title = "HotSpot Runtime Error"; | |
730 const char* question = "Do you want to exclude compilation of this method in future runs?"; | |
731 if (os::message_box(title, question)) { | |
732 CompilerOracle::append_comment_to_file(""); | |
733 CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude"); | |
734 CompilerOracle::append_comment_to_file(""); | |
735 CompilerOracle::append_exclude_to_file(method); | |
736 tty->print_cr("#"); | |
737 tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile); | |
738 tty->print_cr("#"); | |
739 } | |
740 } | |
741 fatal("Implicit null exception happened in compiled method"); | |
742 } else { | |
743 n->print(); | |
744 fatal("Implicit null exception happened in generated stub"); | |
745 } | |
746 } | |
747 fatal("Implicit null exception at wrong place"); | |
748 } | |
749 | |
750 | |
751 //------------------------------------------------------------------------------------- | |
752 // register policy | |
753 | |
754 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
755 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
756 switch (register_save_policy[reg]) { | |
757 case 'C': return false; //SOC | |
758 case 'E': return true ; //SOE | |
759 case 'N': return false; //NS | |
760 case 'A': return false; //AS | |
761 } | |
762 ShouldNotReachHere(); | |
763 return false; | |
764 } | |
765 | |
766 //----------------------------------------------------------------------- | |
767 // Exceptions | |
768 // | |
769 | |
770 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
771 | |
772 // The method is an entry that is always called by a C++ method not | |
773 // directly from compiled code. Compiled code will call the C++ method following. | |
774 // We can't allow async exception to be installed during exception processing. | |
775 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
776 | |
777 // Do not confuse exception_oop with pending_exception. The exception_oop | |
778 // is only used to pass arguments into the method. Not for general | |
779 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
780 // the runtime stubs checks this on exit. | |
781 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
782 address handler_address = NULL; | |
783 | |
784 Handle exception(thread, thread->exception_oop()); | |
785 | |
786 if (TraceExceptions) { | |
787 trace_exception(exception(), thread->exception_pc(), ""); | |
788 } | |
789 // for AbortVMOnException flag | |
790 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
791 | |
792 #ifdef ASSERT | |
1142 | 793 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 794 // should throw an exception here |
795 ShouldNotReachHere(); | |
796 } | |
797 #endif | |
798 | |
799 | |
800 // new exception handling: this method is entered only from adapters | |
801 // exceptions from compiled java methods are handled in compiled code | |
802 // using rethrow node | |
803 | |
804 address pc = thread->exception_pc(); | |
805 nm = CodeCache::find_nmethod(pc); | |
806 assert(nm != NULL, "No NMethod found"); | |
807 if (nm->is_native_method()) { | |
808 fatal("Native mathod should not have path to exception handling"); | |
809 } else { | |
810 // we are switching to old paradigm: search for exception handler in caller_frame | |
811 // instead in exception handler of caller_frame.sender() | |
812 | |
813 if (JvmtiExport::can_post_exceptions()) { | |
814 // "Full-speed catching" is not necessary here, | |
815 // since we're notifying the VM on every catch. | |
816 // Force deoptimization and the rest of the lookup | |
817 // will be fine. | |
818 deoptimize_caller_frame(thread, true); | |
819 } | |
820 | |
821 // Check the stack guard pages. If enabled, look for handler in this frame; | |
822 // otherwise, forcibly unwind the frame. | |
823 // | |
824 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
825 bool force_unwind = !thread->reguard_stack(); | |
826 bool deopting = false; | |
827 if (nm->is_deopt_pc(pc)) { | |
828 deopting = true; | |
829 RegisterMap map(thread, false); | |
830 frame deoptee = thread->last_frame().sender(&map); | |
831 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
832 // Adjust the pc back to the original throwing pc | |
833 pc = deoptee.pc(); | |
834 } | |
835 | |
836 // If we are forcing an unwind because of stack overflow then deopt is | |
837 // irrelevant sice we are throwing the frame away anyway. | |
838 | |
839 if (deopting && !force_unwind) { | |
840 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
841 } else { | |
842 | |
843 handler_address = | |
844 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
845 | |
846 if (handler_address == NULL) { | |
847 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); | |
848 assert (handler_address != NULL, "must have compiled handler"); | |
849 // Update the exception cache only when the unwind was not forced. | |
850 if (!force_unwind) { | |
851 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); | |
852 } | |
853 } else { | |
854 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
855 } | |
856 } | |
857 | |
858 thread->set_exception_pc(pc); | |
859 thread->set_exception_handler_pc(handler_address); | |
860 thread->set_exception_stack_size(0); | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1027
diff
changeset
|
861 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1027
diff
changeset
|
862 // Check if the exception PC is a MethodHandle call. |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1027
diff
changeset
|
863 thread->set_is_method_handle_exception(nm->is_method_handle_return(pc)); |
0 | 864 } |
865 | |
866 // Restore correct return pc. Was saved above. | |
867 thread->set_exception_oop(exception()); | |
868 return handler_address; | |
869 | |
870 JRT_END | |
871 | |
872 // We are entering here from exception_blob | |
873 // If there is a compiled exception handler in this method, we will continue there; | |
874 // otherwise we will unwind the stack and continue at the caller of top frame method | |
875 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
876 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
877 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
878 // we must not use the handler and instread return the deopt blob. | |
879 address OptoRuntime::handle_exception_C(JavaThread* thread) { | |
880 // | |
881 // We are in Java not VM and in debug mode we have a NoHandleMark | |
882 // | |
883 #ifndef PRODUCT | |
884 SharedRuntime::_find_handler_ctr++; // find exception handler | |
885 #endif | |
886 debug_only(NoHandleMark __hm;) | |
887 nmethod* nm = NULL; | |
888 address handler_address = NULL; | |
889 { | |
890 // Enter the VM | |
891 | |
892 ResetNoHandleMark rnhm; | |
893 handler_address = handle_exception_C_helper(thread, nm); | |
894 } | |
895 | |
896 // Back in java: Use no oops, DON'T safepoint | |
897 | |
898 // Now check to see if the handler we are returning is in a now | |
899 // deoptimized frame | |
900 | |
901 if (nm != NULL) { | |
902 RegisterMap map(thread, false); | |
903 frame caller = thread->last_frame().sender(&map); | |
904 #ifdef ASSERT | |
905 assert(caller.is_compiled_frame(), "must be"); | |
906 #endif // ASSERT | |
907 if (caller.is_deoptimized_frame()) { | |
908 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
909 } | |
910 } | |
911 return handler_address; | |
912 } | |
913 | |
914 //------------------------------rethrow---------------------------------------- | |
915 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
916 // is either throwing or rethrowing an exception. The callee-save registers | |
917 // have been restored, synchronized objects have been unlocked and the callee | |
918 // stack frame has been removed. The return address was passed in. | |
919 // Exception oop is passed as the 1st argument. This routine is then called | |
920 // from the stub. On exit, we know where to jump in the caller's code. | |
921 // After this C code exits, the stub will pop his frame and end in a jump | |
922 // (instead of a return). We enter the caller's default handler. | |
923 // | |
924 // This must be JRT_LEAF: | |
925 // - caller will not change its state as we cannot block on exit, | |
926 // therefore raw_exception_handler_for_return_address is all it takes | |
927 // to handle deoptimized blobs | |
928 // | |
929 // However, there needs to be a safepoint check in the middle! So compiled | |
930 // safepoints are completely watertight. | |
931 // | |
932 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
933 // | |
934 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
935 // | |
936 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
937 #ifndef PRODUCT | |
938 SharedRuntime::_rethrow_ctr++; // count rethrows | |
939 #endif | |
940 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
941 #ifdef ASSERT | |
1142 | 942 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 943 // should throw an exception here |
944 ShouldNotReachHere(); | |
945 } | |
946 #endif | |
947 | |
948 thread->set_vm_result(exception); | |
949 // Frame not compiled (handles deoptimization blob) | |
950 return SharedRuntime::raw_exception_handler_for_return_address(ret_pc); | |
951 } | |
952 | |
953 | |
954 const TypeFunc *OptoRuntime::rethrow_Type() { | |
955 // create input type (domain) | |
956 const Type **fields = TypeTuple::fields(1); | |
957 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
958 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
959 | |
960 // create result type (range) | |
961 fields = TypeTuple::fields(1); | |
962 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
963 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
964 | |
965 return TypeFunc::make(domain, range); | |
966 } | |
967 | |
968 | |
969 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
970 // Deoptimize frame | |
971 if (doit) { | |
972 // Called from within the owner thread, so no need for safepoint | |
973 RegisterMap reg_map(thread); | |
974 frame stub_frame = thread->last_frame(); | |
975 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); | |
976 frame caller_frame = stub_frame.sender(®_map); | |
977 | |
978 VM_DeoptimizeFrame deopt(thread, caller_frame.id()); | |
979 VMThread::execute(&deopt); | |
980 } | |
981 } | |
982 | |
983 | |
984 const TypeFunc *OptoRuntime::register_finalizer_Type() { | |
985 // create input type (domain) | |
986 const Type **fields = TypeTuple::fields(1); | |
987 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
988 // // The JavaThread* is passed to each routine as the last argument | |
989 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
990 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
991 | |
992 // create result type (range) | |
993 fields = TypeTuple::fields(0); | |
994 | |
995 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
996 | |
997 return TypeFunc::make(domain,range); | |
998 } | |
999 | |
1000 | |
1001 //----------------------------------------------------------------------------- | |
1002 // Dtrace support. entry and exit probes have the same signature | |
1003 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
1004 // create input type (domain) | |
1005 const Type **fields = TypeTuple::fields(2); | |
1006 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1007 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering | |
1008 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1009 | |
1010 // create result type (range) | |
1011 fields = TypeTuple::fields(0); | |
1012 | |
1013 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1014 | |
1015 return TypeFunc::make(domain,range); | |
1016 } | |
1017 | |
1018 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
1019 // create input type (domain) | |
1020 const Type **fields = TypeTuple::fields(2); | |
1021 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1022 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
1023 | |
1024 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1025 | |
1026 // create result type (range) | |
1027 fields = TypeTuple::fields(0); | |
1028 | |
1029 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1030 | |
1031 return TypeFunc::make(domain,range); | |
1032 } | |
1033 | |
1034 | |
1035 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
1036 assert(obj->is_oop(), "must be a valid oop"); | |
1037 assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise"); | |
1038 instanceKlass::register_finalizer(instanceOop(obj), CHECK); | |
1039 JRT_END | |
1040 | |
1041 //----------------------------------------------------------------------------- | |
1042 | |
1043 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
1044 | |
1045 // | |
1046 // dump the collected NamedCounters. | |
1047 // | |
1048 void OptoRuntime::print_named_counters() { | |
1049 int total_lock_count = 0; | |
1050 int eliminated_lock_count = 0; | |
1051 | |
1052 NamedCounter* c = _named_counters; | |
1053 while (c) { | |
1054 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
1055 int count = c->count(); | |
1056 if (count > 0) { | |
1057 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
1058 if (Verbose) { | |
1059 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
1060 } | |
1061 total_lock_count += count; | |
1062 if (eliminated) { | |
1063 eliminated_lock_count += count; | |
1064 } | |
1065 } | |
1066 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
1067 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
1068 if (blc->nonzero()) { | |
1069 tty->print_cr("%s", c->name()); | |
1070 blc->print_on(tty); | |
1071 } | |
1072 } | |
1073 c = c->next(); | |
1074 } | |
1075 if (total_lock_count > 0) { | |
1076 tty->print_cr("dynamic locks: %d", total_lock_count); | |
1077 if (eliminated_lock_count) { | |
1078 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
1079 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
1080 } | |
1081 } | |
1082 } | |
1083 | |
1084 // | |
1085 // Allocate a new NamedCounter. The JVMState is used to generate the | |
1086 // name which consists of method@line for the inlining tree. | |
1087 // | |
1088 | |
1089 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
1090 int max_depth = youngest_jvms->depth(); | |
1091 | |
1092 // Visit scopes from youngest to oldest. | |
1093 bool first = true; | |
1094 stringStream st; | |
1095 for (int depth = max_depth; depth >= 1; depth--) { | |
1096 JVMState* jvms = youngest_jvms->of_depth(depth); | |
1097 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
1098 if (!first) { | |
1099 st.print(" "); | |
1100 } else { | |
1101 first = false; | |
1102 } | |
1103 int bci = jvms->bci(); | |
1104 if (bci < 0) bci = 0; | |
1105 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
1106 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
1107 } | |
1108 NamedCounter* c; | |
1109 if (tag == NamedCounter::BiasedLockingCounter) { | |
1110 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
1111 } else { | |
1112 c = new NamedCounter(strdup(st.as_string()), tag); | |
1113 } | |
1114 | |
1115 // atomically add the new counter to the head of the list. We only | |
1116 // add counters so this is safe. | |
1117 NamedCounter* head; | |
1118 do { | |
1119 head = _named_counters; | |
1120 c->set_next(head); | |
1121 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
1122 return c; | |
1123 } | |
1124 | |
1125 //----------------------------------------------------------------------------- | |
1126 // Non-product code | |
1127 #ifndef PRODUCT | |
1128 | |
1129 int trace_exception_counter = 0; | |
1130 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
1131 ttyLocker ttyl; | |
1132 trace_exception_counter++; | |
1133 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
1134 exception_oop->print_value(); | |
1135 tty->print(" in "); | |
1136 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
1137 if (blob->is_nmethod()) { | |
1138 ((nmethod*)blob)->method()->print_value(); | |
1139 } else if (blob->is_runtime_stub()) { | |
1140 tty->print("<runtime-stub>"); | |
1141 } else { | |
1142 tty->print("<unknown>"); | |
1143 } | |
1144 tty->print(" at " INTPTR_FORMAT, exception_pc); | |
1145 tty->print_cr("]"); | |
1146 } | |
1147 | |
1148 #endif // PRODUCT | |
1149 | |
1150 | |
1151 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1152 // Called from call sites in compiled code with oop maps (actually safepoints) | |
1153 // Zaps dead locals in first java frame. | |
1154 // Is entry because may need to lock to generate oop maps | |
1155 // Currently, only used for compiler frames, but someday may be used | |
1156 // for interpreter frames, too. | |
1157 | |
1158 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
1159 | |
1160 // avoid pointers to member funcs with these helpers | |
1161 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
1162 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
1163 | |
1164 | |
1165 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
1166 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
1167 assert(JavaThread::current() == thread, "is this needed?"); | |
1168 | |
1169 if ( !ZapDeadCompiledLocals ) return; | |
1170 | |
1171 bool skip = false; | |
1172 | |
1173 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
1174 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
1175 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
1176 warning("starting zapping after skipping"); | |
1177 | |
1178 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
1179 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
1180 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
1181 warning("about to zap last zap"); | |
1182 | |
1183 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
1184 | |
1185 if ( skip ) return; | |
1186 | |
1187 // find java frame and zap it | |
1188 | |
1189 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
1190 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
1191 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
1192 return; | |
1193 } | |
1194 } | |
1195 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
1196 } | |
1197 | |
1198 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
1199 zap_dead_java_or_native_locals(thread, is_java_frame); | |
1200 JRT_END | |
1201 | |
1202 // The following does not work because for one thing, the | |
1203 // thread state is wrong; it expects java, but it is native. | |
605 | 1204 // Also, the invariants in a native stub are different and |
0 | 1205 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
1206 // in there. | |
1207 // So for now, we do not zap in native stubs. | |
1208 | |
1209 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
1210 zap_dead_java_or_native_locals(thread, is_native_frame); | |
1211 JRT_END | |
1212 | |
1213 # endif |