Mercurial > hg > truffle
annotate src/share/vm/opto/runtime.cpp @ 2831:f072013daba9
Added lookup method.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 31 May 2011 11:32:48 +0200 |
parents | 1d1603768966 |
children | f7d55ea6ee56 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "code/compiledIC.hpp" | |
29 #include "code/icBuffer.hpp" | |
30 #include "code/nmethod.hpp" | |
31 #include "code/pcDesc.hpp" | |
32 #include "code/scopeDesc.hpp" | |
33 #include "code/vtableStubs.hpp" | |
34 #include "compiler/compileBroker.hpp" | |
35 #include "compiler/compilerOracle.hpp" | |
36 #include "compiler/oopMap.hpp" | |
37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" | |
38 #include "gc_implementation/g1/heapRegion.hpp" | |
39 #include "gc_interface/collectedHeap.hpp" | |
40 #include "interpreter/bytecode.hpp" | |
41 #include "interpreter/interpreter.hpp" | |
42 #include "interpreter/linkResolver.hpp" | |
43 #include "memory/barrierSet.hpp" | |
44 #include "memory/gcLocker.inline.hpp" | |
45 #include "memory/oopFactory.hpp" | |
46 #include "oops/objArrayKlass.hpp" | |
47 #include "oops/oop.inline.hpp" | |
48 #include "opto/addnode.hpp" | |
49 #include "opto/callnode.hpp" | |
50 #include "opto/cfgnode.hpp" | |
51 #include "opto/connode.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/fprofiler.hpp" | |
60 #include "runtime/handles.inline.hpp" | |
61 #include "runtime/interfaceSupport.hpp" | |
62 #include "runtime/javaCalls.hpp" | |
63 #include "runtime/sharedRuntime.hpp" | |
64 #include "runtime/signature.hpp" | |
65 #include "runtime/threadCritical.hpp" | |
66 #include "runtime/vframe.hpp" | |
67 #include "runtime/vframeArray.hpp" | |
68 #include "runtime/vframe_hp.hpp" | |
69 #include "utilities/copy.hpp" | |
70 #include "utilities/preserveException.hpp" | |
71 #ifdef TARGET_ARCH_MODEL_x86_32 | |
72 # include "adfiles/ad_x86_32.hpp" | |
73 #endif | |
74 #ifdef TARGET_ARCH_MODEL_x86_64 | |
75 # include "adfiles/ad_x86_64.hpp" | |
76 #endif | |
77 #ifdef TARGET_ARCH_MODEL_sparc | |
78 # include "adfiles/ad_sparc.hpp" | |
79 #endif | |
80 #ifdef TARGET_ARCH_MODEL_zero | |
81 # include "adfiles/ad_zero.hpp" | |
82 #endif | |
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83 #ifdef TARGET_ARCH_MODEL_arm |
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84 # include "adfiles/ad_arm.hpp" |
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85 #endif |
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86 #ifdef TARGET_ARCH_MODEL_ppc |
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87 # include "adfiles/ad_ppc.hpp" |
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88 #endif |
0 | 89 |
90 | |
91 // For debugging purposes: | |
92 // To force FullGCALot inside a runtime function, add the following two lines | |
93 // | |
94 // Universe::release_fullgc_alot_dummy(); | |
95 // MarkSweep::invoke(0, "Debugging"); | |
96 // | |
97 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 | |
98 | |
99 | |
100 | |
101 | |
102 // Compiled code entry points | |
103 address OptoRuntime::_new_instance_Java = NULL; | |
104 address OptoRuntime::_new_array_Java = NULL; | |
105 address OptoRuntime::_multianewarray2_Java = NULL; | |
106 address OptoRuntime::_multianewarray3_Java = NULL; | |
107 address OptoRuntime::_multianewarray4_Java = NULL; | |
108 address OptoRuntime::_multianewarray5_Java = NULL; | |
342 | 109 address OptoRuntime::_g1_wb_pre_Java = NULL; |
110 address OptoRuntime::_g1_wb_post_Java = NULL; | |
0 | 111 address OptoRuntime::_vtable_must_compile_Java = NULL; |
112 address OptoRuntime::_complete_monitor_locking_Java = NULL; | |
113 address OptoRuntime::_rethrow_Java = NULL; | |
114 | |
115 address OptoRuntime::_slow_arraycopy_Java = NULL; | |
116 address OptoRuntime::_register_finalizer_Java = NULL; | |
117 | |
118 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
119 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; | |
120 address OptoRuntime::_zap_dead_native_locals_Java = NULL; | |
121 # endif | |
122 | |
123 | |
124 // This should be called in an assertion at the start of OptoRuntime routines | |
125 // which are entered from compiled code (all of them) | |
126 #ifndef PRODUCT | |
127 static bool check_compiled_frame(JavaThread* thread) { | |
128 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
129 #ifdef ASSERT | |
130 RegisterMap map(thread, false); | |
131 frame caller = thread->last_frame().sender(&map); | |
132 assert(caller.is_compiled_frame(), "not being called from compiled like code"); | |
133 #endif /* ASSERT */ | |
134 return true; | |
135 } | |
136 #endif | |
137 | |
138 | |
139 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ | |
140 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc) | |
141 | |
142 void OptoRuntime::generate(ciEnv* env) { | |
143 | |
144 generate_exception_blob(); | |
145 | |
146 // Note: tls: Means fetching the return oop out of the thread-local storage | |
147 // | |
148 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc | |
149 // ------------------------------------------------------------------------------------------------------------------------------- | |
150 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); | |
151 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); | |
152 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); | |
153 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); | |
154 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); | |
155 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); | |
342 | 156 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
157 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); | |
0 | 158 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false); |
159 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); | |
160 | |
161 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); | |
162 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); | |
163 | |
164 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
165 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); | |
166 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); | |
167 # endif | |
168 | |
169 } | |
170 | |
171 #undef gen | |
172 | |
173 | |
174 // Helper method to do generation of RunTimeStub's | |
175 address OptoRuntime::generate_stub( ciEnv* env, | |
176 TypeFunc_generator gen, address C_function, | |
177 const char *name, int is_fancy_jump, | |
178 bool pass_tls, | |
179 bool save_argument_registers, | |
180 bool return_pc ) { | |
181 ResourceMark rm; | |
182 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); | |
183 return C.stub_entry_point(); | |
184 } | |
185 | |
186 const char* OptoRuntime::stub_name(address entry) { | |
187 #ifndef PRODUCT | |
188 CodeBlob* cb = CodeCache::find_blob(entry); | |
189 RuntimeStub* rs =(RuntimeStub *)cb; | |
190 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); | |
191 return rs->name(); | |
192 #else | |
193 // Fast implementation for product mode (maybe it should be inlined too) | |
194 return "runtime stub"; | |
195 #endif | |
196 } | |
197 | |
198 | |
199 //============================================================================= | |
200 // Opto compiler runtime routines | |
201 //============================================================================= | |
202 | |
203 | |
204 //=============================allocation====================================== | |
205 // We failed the fast-path allocation. Now we need to do a scavenge or GC | |
206 // and try allocation again. | |
207 | |
1166 | 208 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { |
0 | 209 // After any safepoint, just before going back to compiled code, |
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210 // we inform the GC that we will be doing initializing writes to |
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211 // this object in the future without emitting card-marks, so |
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212 // GC may take any compensating steps. |
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213 // NOTE: Keep this code consistent with GraphKit::store_barrier. |
0 | 214 |
215 oop new_obj = thread->vm_result(); | |
216 if (new_obj == NULL) return; | |
217 | |
218 assert(Universe::heap()->can_elide_tlab_store_barriers(), | |
219 "compiler must check this first"); | |
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220 // GC may decide to give back a safer copy of new_obj. |
1166 | 221 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); |
0 | 222 thread->set_vm_result(new_obj); |
223 } | |
224 | |
225 // object allocation | |
226 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread)) | |
227 JRT_BLOCK; | |
228 #ifndef PRODUCT | |
229 SharedRuntime::_new_instance_ctr++; // new instance requires GC | |
230 #endif | |
231 assert(check_compiled_frame(thread), "incorrect caller"); | |
232 | |
233 // These checks are cheap to make and support reflective allocation. | |
234 int lh = Klass::cast(klass)->layout_helper(); | |
235 if (Klass::layout_helper_needs_slow_path(lh) | |
236 || !instanceKlass::cast(klass)->is_initialized()) { | |
237 KlassHandle kh(THREAD, klass); | |
238 kh->check_valid_for_instantiation(false, THREAD); | |
239 if (!HAS_PENDING_EXCEPTION) { | |
240 instanceKlass::cast(kh())->initialize(THREAD); | |
241 } | |
242 if (!HAS_PENDING_EXCEPTION) { | |
243 klass = kh(); | |
244 } else { | |
245 klass = NULL; | |
246 } | |
247 } | |
248 | |
249 if (klass != NULL) { | |
250 // Scavenge and allocate an instance. | |
251 oop result = instanceKlass::cast(klass)->allocate_instance(THREAD); | |
252 thread->set_vm_result(result); | |
253 | |
254 // Pass oops back through thread local storage. Our apparent type to Java | |
255 // is that we return an oop, but we can block on exit from this routine and | |
256 // a GC can trash the oop in C's return register. The generated stub will | |
257 // fetch the oop from TLS after any possible GC. | |
258 } | |
259 | |
260 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
261 JRT_BLOCK_END; | |
262 | |
263 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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264 // inform GC that we won't do card marks for initializing writes. |
1166 | 265 new_store_pre_barrier(thread); |
0 | 266 } |
267 JRT_END | |
268 | |
269 | |
270 // array allocation | |
271 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread)) | |
272 JRT_BLOCK; | |
273 #ifndef PRODUCT | |
274 SharedRuntime::_new_array_ctr++; // new array requires GC | |
275 #endif | |
276 assert(check_compiled_frame(thread), "incorrect caller"); | |
277 | |
278 // Scavenge and allocate an instance. | |
279 oop result; | |
280 | |
281 if (Klass::cast(array_type)->oop_is_typeArray()) { | |
282 // The oopFactory likes to work with the element type. | |
283 // (We could bypass the oopFactory, since it doesn't add much value.) | |
284 BasicType elem_type = typeArrayKlass::cast(array_type)->element_type(); | |
285 result = oopFactory::new_typeArray(elem_type, len, THREAD); | |
286 } else { | |
287 // Although the oopFactory likes to work with the elem_type, | |
288 // the compiler prefers the array_type, since it must already have | |
289 // that latter value in hand for the fast path. | |
290 klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass(); | |
291 result = oopFactory::new_objArray(elem_type, len, THREAD); | |
292 } | |
293 | |
294 // Pass oops back through thread local storage. Our apparent type to Java | |
295 // is that we return an oop, but we can block on exit from this routine and | |
296 // a GC can trash the oop in C's return register. The generated stub will | |
297 // fetch the oop from TLS after any possible GC. | |
298 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
299 thread->set_vm_result(result); | |
300 JRT_BLOCK_END; | |
301 | |
302 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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303 // inform GC that we won't do card marks for initializing writes. |
1166 | 304 new_store_pre_barrier(thread); |
0 | 305 } |
306 JRT_END | |
307 | |
308 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. | |
309 | |
310 // multianewarray for 2 dimensions | |
311 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread)) | |
312 #ifndef PRODUCT | |
313 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
314 #endif | |
315 assert(check_compiled_frame(thread), "incorrect caller"); | |
316 assert(oop(elem_type)->is_klass(), "not a class"); | |
317 jint dims[2]; | |
318 dims[0] = len1; | |
319 dims[1] = len2; | |
320 oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); | |
321 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
322 thread->set_vm_result(obj); | |
323 JRT_END | |
324 | |
325 // multianewarray for 3 dimensions | |
326 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread)) | |
327 #ifndef PRODUCT | |
328 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
329 #endif | |
330 assert(check_compiled_frame(thread), "incorrect caller"); | |
331 assert(oop(elem_type)->is_klass(), "not a class"); | |
332 jint dims[3]; | |
333 dims[0] = len1; | |
334 dims[1] = len2; | |
335 dims[2] = len3; | |
336 oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); | |
337 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
338 thread->set_vm_result(obj); | |
339 JRT_END | |
340 | |
341 // multianewarray for 4 dimensions | |
342 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) | |
343 #ifndef PRODUCT | |
344 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
345 #endif | |
346 assert(check_compiled_frame(thread), "incorrect caller"); | |
347 assert(oop(elem_type)->is_klass(), "not a class"); | |
348 jint dims[4]; | |
349 dims[0] = len1; | |
350 dims[1] = len2; | |
351 dims[2] = len3; | |
352 dims[3] = len4; | |
353 oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); | |
354 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
355 thread->set_vm_result(obj); | |
356 JRT_END | |
357 | |
358 // multianewarray for 5 dimensions | |
359 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) | |
360 #ifndef PRODUCT | |
361 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
362 #endif | |
363 assert(check_compiled_frame(thread), "incorrect caller"); | |
364 assert(oop(elem_type)->is_klass(), "not a class"); | |
365 jint dims[5]; | |
366 dims[0] = len1; | |
367 dims[1] = len2; | |
368 dims[2] = len3; | |
369 dims[3] = len4; | |
370 dims[4] = len5; | |
371 oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); | |
372 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
373 thread->set_vm_result(obj); | |
374 JRT_END | |
375 | |
376 const TypeFunc *OptoRuntime::new_instance_Type() { | |
377 // create input type (domain) | |
378 const Type **fields = TypeTuple::fields(1); | |
379 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
380 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
381 | |
382 // create result type (range) | |
383 fields = TypeTuple::fields(1); | |
384 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
385 | |
386 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
387 | |
388 return TypeFunc::make(domain, range); | |
389 } | |
390 | |
391 | |
392 const TypeFunc *OptoRuntime::athrow_Type() { | |
393 // create input type (domain) | |
394 const Type **fields = TypeTuple::fields(1); | |
395 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
396 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
397 | |
398 // create result type (range) | |
399 fields = TypeTuple::fields(0); | |
400 | |
401 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
402 | |
403 return TypeFunc::make(domain, range); | |
404 } | |
405 | |
406 | |
407 const TypeFunc *OptoRuntime::new_array_Type() { | |
408 // create input type (domain) | |
409 const Type **fields = TypeTuple::fields(2); | |
410 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
411 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
412 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
413 | |
414 // create result type (range) | |
415 fields = TypeTuple::fields(1); | |
416 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
417 | |
418 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
419 | |
420 return TypeFunc::make(domain, range); | |
421 } | |
422 | |
423 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
424 // create input type (domain) | |
425 const int nargs = ndim + 1; | |
426 const Type **fields = TypeTuple::fields(nargs); | |
427 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
428 for( int i = 1; i < nargs; i++ ) | |
429 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
430 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
431 | |
432 // create result type (range) | |
433 fields = TypeTuple::fields(1); | |
434 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
435 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
436 | |
437 return TypeFunc::make(domain, range); | |
438 } | |
439 | |
440 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
441 return multianewarray_Type(2); | |
442 } | |
443 | |
444 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
445 return multianewarray_Type(3); | |
446 } | |
447 | |
448 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
449 return multianewarray_Type(4); | |
450 } | |
451 | |
452 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
453 return multianewarray_Type(5); | |
454 } | |
455 | |
342 | 456 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
457 const Type **fields = TypeTuple::fields(2); | |
458 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
459 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
460 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
461 | |
462 // create result type (range) | |
463 fields = TypeTuple::fields(0); | |
464 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
465 | |
466 return TypeFunc::make(domain, range); | |
467 } | |
468 | |
469 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
470 | |
471 const Type **fields = TypeTuple::fields(2); | |
472 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
473 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
474 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
475 | |
476 // create result type (range) | |
477 fields = TypeTuple::fields(0); | |
478 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
479 | |
480 return TypeFunc::make(domain, range); | |
481 } | |
482 | |
0 | 483 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
484 // create input type (domain) | |
485 const Type **fields = TypeTuple::fields(1); | |
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486 // Symbol* name of class to be loaded |
0 | 487 fields[TypeFunc::Parms+0] = TypeInt::INT; |
488 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
489 | |
490 // create result type (range) | |
491 fields = TypeTuple::fields(0); | |
492 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
493 | |
494 return TypeFunc::make(domain, range); | |
495 } | |
496 | |
497 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
498 // Type used for stub generation for zap_dead_locals. | |
499 // No inputs or outputs | |
500 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
501 // create input type (domain) | |
502 const Type **fields = TypeTuple::fields(0); | |
503 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
504 | |
505 // create result type (range) | |
506 fields = TypeTuple::fields(0); | |
507 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
508 | |
509 return TypeFunc::make(domain,range); | |
510 } | |
511 # endif | |
512 | |
513 | |
514 //----------------------------------------------------------------------------- | |
515 // Monitor Handling | |
516 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
517 // create input type (domain) | |
518 const Type **fields = TypeTuple::fields(2); | |
519 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
520 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
521 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
522 | |
523 // create result type (range) | |
524 fields = TypeTuple::fields(0); | |
525 | |
526 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
527 | |
528 return TypeFunc::make(domain,range); | |
529 } | |
530 | |
531 | |
532 //----------------------------------------------------------------------------- | |
533 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
534 // create input type (domain) | |
535 const Type **fields = TypeTuple::fields(2); | |
536 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
537 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
538 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
539 | |
540 // create result type (range) | |
541 fields = TypeTuple::fields(0); | |
542 | |
543 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
544 | |
545 return TypeFunc::make(domain,range); | |
546 } | |
547 | |
548 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
549 // create input type (domain) | |
550 const Type** fields = TypeTuple::fields(1); | |
551 fields[TypeFunc::Parms+0] = NULL; // void | |
552 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
553 | |
554 // create result type | |
555 fields = TypeTuple::fields(1); | |
556 fields[TypeFunc::Parms+0] = NULL; // void | |
557 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
558 | |
559 return TypeFunc::make(domain, range); | |
560 } | |
561 | |
562 const TypeFunc* OptoRuntime::l2f_Type() { | |
563 // create input type (domain) | |
564 const Type **fields = TypeTuple::fields(2); | |
565 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
566 fields[TypeFunc::Parms+1] = Type::HALF; | |
567 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
568 | |
569 // create result type (range) | |
570 fields = TypeTuple::fields(1); | |
571 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
572 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
573 | |
574 return TypeFunc::make(domain, range); | |
575 } | |
576 | |
577 const TypeFunc* OptoRuntime::modf_Type() { | |
578 const Type **fields = TypeTuple::fields(2); | |
579 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
580 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
581 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
582 | |
583 // create result type (range) | |
584 fields = TypeTuple::fields(1); | |
585 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
586 | |
587 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
588 | |
589 return TypeFunc::make(domain, range); | |
590 } | |
591 | |
592 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
593 // create input type (domain) | |
594 const Type **fields = TypeTuple::fields(2); | |
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595 // Symbol* name of class to be loaded |
0 | 596 fields[TypeFunc::Parms+0] = Type::DOUBLE; |
597 fields[TypeFunc::Parms+1] = Type::HALF; | |
598 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
599 | |
600 // create result type (range) | |
601 fields = TypeTuple::fields(2); | |
602 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
603 fields[TypeFunc::Parms+1] = Type::HALF; | |
604 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
605 | |
606 return TypeFunc::make(domain, range); | |
607 } | |
608 | |
609 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
610 const Type **fields = TypeTuple::fields(4); | |
611 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
612 fields[TypeFunc::Parms+1] = Type::HALF; | |
613 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
614 fields[TypeFunc::Parms+3] = Type::HALF; | |
615 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
616 | |
617 // create result type (range) | |
618 fields = TypeTuple::fields(2); | |
619 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
620 fields[TypeFunc::Parms+1] = Type::HALF; | |
621 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
622 | |
623 return TypeFunc::make(domain, range); | |
624 } | |
625 | |
626 //-------------- currentTimeMillis | |
627 | |
628 const TypeFunc* OptoRuntime::current_time_millis_Type() { | |
629 // create input type (domain) | |
630 const Type **fields = TypeTuple::fields(0); | |
631 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
632 | |
633 // create result type (range) | |
634 fields = TypeTuple::fields(2); | |
635 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
636 fields[TypeFunc::Parms+1] = Type::HALF; | |
637 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
638 | |
639 return TypeFunc::make(domain, range); | |
640 } | |
641 | |
642 // arraycopy stub variations: | |
643 enum ArrayCopyType { | |
644 ac_fast, // void(ptr, ptr, size_t) | |
645 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
646 ac_slow, // void(ptr, int, ptr, int, int) | |
647 ac_generic // int(ptr, int, ptr, int, int) | |
648 }; | |
649 | |
650 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
651 // create input type (domain) | |
652 int num_args = (act == ac_fast ? 3 : 5); | |
653 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
654 int argcnt = num_args; | |
655 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
656 const Type** fields = TypeTuple::fields(argcnt); | |
657 int argp = TypeFunc::Parms; | |
658 fields[argp++] = TypePtr::NOTNULL; // src | |
659 if (num_size_args == 0) { | |
660 fields[argp++] = TypeInt::INT; // src_pos | |
661 } | |
662 fields[argp++] = TypePtr::NOTNULL; // dest | |
663 if (num_size_args == 0) { | |
664 fields[argp++] = TypeInt::INT; // dest_pos | |
665 fields[argp++] = TypeInt::INT; // length | |
666 } | |
667 while (num_size_args-- > 0) { | |
668 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
669 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
670 } | |
671 if (act == ac_checkcast) { | |
672 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
673 } | |
674 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
675 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
676 | |
677 // create result type if needed | |
678 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
679 fields = TypeTuple::fields(1); | |
680 if (retcnt == 0) | |
681 fields[TypeFunc::Parms+0] = NULL; // void | |
682 else | |
683 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
684 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
685 return TypeFunc::make(domain, range); | |
686 } | |
687 | |
688 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
689 // This signature is simple: Two base pointers and a size_t. | |
690 return make_arraycopy_Type(ac_fast); | |
691 } | |
692 | |
693 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
694 // An extension of fast_arraycopy_Type which adds type checking. | |
695 return make_arraycopy_Type(ac_checkcast); | |
696 } | |
697 | |
698 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
699 // This signature is exactly the same as System.arraycopy. | |
700 // There are no intptr_t (int/long) arguments. | |
701 return make_arraycopy_Type(ac_slow); | |
702 } | |
703 | |
704 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
705 // This signature is like System.arraycopy, except that it returns status. | |
706 return make_arraycopy_Type(ac_generic); | |
707 } | |
708 | |
709 | |
1763 | 710 const TypeFunc* OptoRuntime::array_fill_Type() { |
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711 // create input type (domain): pointer, int, size_t |
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712 const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1)); |
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713 int argp = TypeFunc::Parms; |
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714 fields[argp++] = TypePtr::NOTNULL; |
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715 fields[argp++] = TypeInt::INT; |
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716 fields[argp++] = TypeX_X; // size in whatevers (size_t) |
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717 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
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718 const TypeTuple *domain = TypeTuple::make(argp, fields); |
1763 | 719 |
720 // create result type | |
721 fields = TypeTuple::fields(1); | |
722 fields[TypeFunc::Parms+0] = NULL; // void | |
723 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
724 | |
725 return TypeFunc::make(domain, range); | |
726 } | |
727 | |
0 | 728 //------------- Interpreter state access for on stack replacement |
729 const TypeFunc* OptoRuntime::osr_end_Type() { | |
730 // create input type (domain) | |
731 const Type **fields = TypeTuple::fields(1); | |
732 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
733 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
734 | |
735 // create result type | |
736 fields = TypeTuple::fields(1); | |
737 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
738 fields[TypeFunc::Parms+0] = NULL; // void | |
739 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
740 return TypeFunc::make(domain, range); | |
741 } | |
742 | |
743 //-------------- methodData update helpers | |
744 | |
745 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
746 // create input type (domain) | |
747 const Type **fields = TypeTuple::fields(2); | |
748 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
749 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
750 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
751 | |
752 // create result type | |
753 fields = TypeTuple::fields(1); | |
754 fields[TypeFunc::Parms+0] = NULL; // void | |
755 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
756 return TypeFunc::make(domain,range); | |
757 } | |
758 | |
759 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
760 if (receiver == NULL) return; | |
761 klassOop receiver_klass = receiver->klass(); | |
762 | |
763 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
764 int empty_row = -1; // free row, if any is encountered | |
765 | |
766 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
767 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
768 // if (vc->receiver(row) == receiver_klass) | |
769 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
770 intptr_t row_recv = *(mdp + receiver_off); | |
771 if (row_recv == (intptr_t) receiver_klass) { | |
772 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
773 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
774 *(mdp + count_off) += DataLayout::counter_increment; | |
775 return; | |
776 } else if (row_recv == 0) { | |
777 // else if (vc->receiver(row) == NULL) | |
778 empty_row = (int) row; | |
779 } | |
780 } | |
781 | |
782 if (empty_row != -1) { | |
783 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
784 // vc->set_receiver(empty_row, receiver_klass); | |
785 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
786 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
787 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
788 *(mdp + count_off) = DataLayout::counter_increment; | |
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789 } else { |
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790 // Receiver did not match any saved receiver and there is no empty row for it. |
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791 // Increment total counter to indicate polymorphic case. |
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792 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); |
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793 *count_p += DataLayout::counter_increment; |
0 | 794 } |
795 JRT_END | |
796 | |
797 //----------------------------------------------------------------------------- | |
798 // implicit exception support. | |
799 | |
800 static void report_null_exception_in_code_cache(address exception_pc) { | |
801 ResourceMark rm; | |
802 CodeBlob* n = CodeCache::find_blob(exception_pc); | |
803 if (n != NULL) { | |
804 tty->print_cr("#"); | |
805 tty->print_cr("# HotSpot Runtime Error, null exception in generated code"); | |
806 tty->print_cr("#"); | |
807 tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc); | |
808 | |
809 if (n->is_nmethod()) { | |
810 methodOop method = ((nmethod*)n)->method(); | |
811 tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string()); | |
812 tty->print_cr("#"); | |
813 if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) { | |
814 const char* title = "HotSpot Runtime Error"; | |
815 const char* question = "Do you want to exclude compilation of this method in future runs?"; | |
816 if (os::message_box(title, question)) { | |
817 CompilerOracle::append_comment_to_file(""); | |
818 CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude"); | |
819 CompilerOracle::append_comment_to_file(""); | |
820 CompilerOracle::append_exclude_to_file(method); | |
821 tty->print_cr("#"); | |
822 tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile); | |
823 tty->print_cr("#"); | |
824 } | |
825 } | |
826 fatal("Implicit null exception happened in compiled method"); | |
827 } else { | |
828 n->print(); | |
829 fatal("Implicit null exception happened in generated stub"); | |
830 } | |
831 } | |
832 fatal("Implicit null exception at wrong place"); | |
833 } | |
834 | |
835 | |
836 //------------------------------------------------------------------------------------- | |
837 // register policy | |
838 | |
839 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
840 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
841 switch (register_save_policy[reg]) { | |
842 case 'C': return false; //SOC | |
843 case 'E': return true ; //SOE | |
844 case 'N': return false; //NS | |
845 case 'A': return false; //AS | |
846 } | |
847 ShouldNotReachHere(); | |
848 return false; | |
849 } | |
850 | |
851 //----------------------------------------------------------------------- | |
852 // Exceptions | |
853 // | |
854 | |
855 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
856 | |
857 // The method is an entry that is always called by a C++ method not | |
858 // directly from compiled code. Compiled code will call the C++ method following. | |
859 // We can't allow async exception to be installed during exception processing. | |
860 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
861 | |
862 // Do not confuse exception_oop with pending_exception. The exception_oop | |
863 // is only used to pass arguments into the method. Not for general | |
864 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
865 // the runtime stubs checks this on exit. | |
866 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
867 address handler_address = NULL; | |
868 | |
869 Handle exception(thread, thread->exception_oop()); | |
870 | |
871 if (TraceExceptions) { | |
872 trace_exception(exception(), thread->exception_pc(), ""); | |
873 } | |
874 // for AbortVMOnException flag | |
875 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
876 | |
877 #ifdef ASSERT | |
1142 | 878 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 879 // should throw an exception here |
880 ShouldNotReachHere(); | |
881 } | |
882 #endif | |
883 | |
884 | |
885 // new exception handling: this method is entered only from adapters | |
886 // exceptions from compiled java methods are handled in compiled code | |
887 // using rethrow node | |
888 | |
889 address pc = thread->exception_pc(); | |
890 nm = CodeCache::find_nmethod(pc); | |
891 assert(nm != NULL, "No NMethod found"); | |
892 if (nm->is_native_method()) { | |
893 fatal("Native mathod should not have path to exception handling"); | |
894 } else { | |
895 // we are switching to old paradigm: search for exception handler in caller_frame | |
896 // instead in exception handler of caller_frame.sender() | |
897 | |
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898 if (JvmtiExport::can_post_on_exceptions()) { |
0 | 899 // "Full-speed catching" is not necessary here, |
900 // since we're notifying the VM on every catch. | |
901 // Force deoptimization and the rest of the lookup | |
902 // will be fine. | |
903 deoptimize_caller_frame(thread, true); | |
904 } | |
905 | |
906 // Check the stack guard pages. If enabled, look for handler in this frame; | |
907 // otherwise, forcibly unwind the frame. | |
908 // | |
909 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
910 bool force_unwind = !thread->reguard_stack(); | |
911 bool deopting = false; | |
912 if (nm->is_deopt_pc(pc)) { | |
913 deopting = true; | |
914 RegisterMap map(thread, false); | |
915 frame deoptee = thread->last_frame().sender(&map); | |
916 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
917 // Adjust the pc back to the original throwing pc | |
918 pc = deoptee.pc(); | |
919 } | |
920 | |
921 // If we are forcing an unwind because of stack overflow then deopt is | |
922 // irrelevant sice we are throwing the frame away anyway. | |
923 | |
924 if (deopting && !force_unwind) { | |
925 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
926 } else { | |
927 | |
928 handler_address = | |
929 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
930 | |
931 if (handler_address == NULL) { | |
932 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); | |
933 assert (handler_address != NULL, "must have compiled handler"); | |
934 // Update the exception cache only when the unwind was not forced. | |
935 if (!force_unwind) { | |
936 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); | |
937 } | |
938 } else { | |
939 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
940 } | |
941 } | |
942 | |
943 thread->set_exception_pc(pc); | |
944 thread->set_exception_handler_pc(handler_address); | |
945 thread->set_exception_stack_size(0); | |
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1295 | 947 // Check if the exception PC is a MethodHandle call site. |
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948 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); |
0 | 949 } |
950 | |
951 // Restore correct return pc. Was saved above. | |
952 thread->set_exception_oop(exception()); | |
953 return handler_address; | |
954 | |
955 JRT_END | |
956 | |
957 // We are entering here from exception_blob | |
958 // If there is a compiled exception handler in this method, we will continue there; | |
959 // otherwise we will unwind the stack and continue at the caller of top frame method | |
960 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
961 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
962 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
963 // we must not use the handler and instread return the deopt blob. | |
964 address OptoRuntime::handle_exception_C(JavaThread* thread) { | |
965 // | |
966 // We are in Java not VM and in debug mode we have a NoHandleMark | |
967 // | |
968 #ifndef PRODUCT | |
969 SharedRuntime::_find_handler_ctr++; // find exception handler | |
970 #endif | |
971 debug_only(NoHandleMark __hm;) | |
972 nmethod* nm = NULL; | |
973 address handler_address = NULL; | |
974 { | |
975 // Enter the VM | |
976 | |
977 ResetNoHandleMark rnhm; | |
978 handler_address = handle_exception_C_helper(thread, nm); | |
979 } | |
980 | |
981 // Back in java: Use no oops, DON'T safepoint | |
982 | |
983 // Now check to see if the handler we are returning is in a now | |
984 // deoptimized frame | |
985 | |
986 if (nm != NULL) { | |
987 RegisterMap map(thread, false); | |
988 frame caller = thread->last_frame().sender(&map); | |
989 #ifdef ASSERT | |
990 assert(caller.is_compiled_frame(), "must be"); | |
991 #endif // ASSERT | |
992 if (caller.is_deoptimized_frame()) { | |
993 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
994 } | |
995 } | |
996 return handler_address; | |
997 } | |
998 | |
999 //------------------------------rethrow---------------------------------------- | |
1000 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
1001 // is either throwing or rethrowing an exception. The callee-save registers | |
1002 // have been restored, synchronized objects have been unlocked and the callee | |
1003 // stack frame has been removed. The return address was passed in. | |
1004 // Exception oop is passed as the 1st argument. This routine is then called | |
1005 // from the stub. On exit, we know where to jump in the caller's code. | |
1006 // After this C code exits, the stub will pop his frame and end in a jump | |
1007 // (instead of a return). We enter the caller's default handler. | |
1008 // | |
1009 // This must be JRT_LEAF: | |
1010 // - caller will not change its state as we cannot block on exit, | |
1011 // therefore raw_exception_handler_for_return_address is all it takes | |
1012 // to handle deoptimized blobs | |
1013 // | |
1014 // However, there needs to be a safepoint check in the middle! So compiled | |
1015 // safepoints are completely watertight. | |
1016 // | |
1017 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
1018 // | |
1019 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
1020 // | |
1021 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
1022 #ifndef PRODUCT | |
1023 SharedRuntime::_rethrow_ctr++; // count rethrows | |
1024 #endif | |
1025 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
1026 #ifdef ASSERT | |
1142 | 1027 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 1028 // should throw an exception here |
1029 ShouldNotReachHere(); | |
1030 } | |
1031 #endif | |
1032 | |
1033 thread->set_vm_result(exception); | |
1034 // Frame not compiled (handles deoptimization blob) | |
1295 | 1035 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); |
0 | 1036 } |
1037 | |
1038 | |
1039 const TypeFunc *OptoRuntime::rethrow_Type() { | |
1040 // create input type (domain) | |
1041 const Type **fields = TypeTuple::fields(1); | |
1042 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1043 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1044 | |
1045 // create result type (range) | |
1046 fields = TypeTuple::fields(1); | |
1047 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1048 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
1049 | |
1050 return TypeFunc::make(domain, range); | |
1051 } | |
1052 | |
1053 | |
1054 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
1055 // Deoptimize frame | |
1056 if (doit) { | |
1057 // Called from within the owner thread, so no need for safepoint | |
1058 RegisterMap reg_map(thread); | |
1059 frame stub_frame = thread->last_frame(); | |
1060 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); | |
1061 frame caller_frame = stub_frame.sender(®_map); | |
1062 | |
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1063 // bypass VM_DeoptimizeFrame and deoptimize the frame directly |
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1064 Deoptimization::deoptimize_frame(thread, caller_frame.id()); |
0 | 1065 } |
1066 } | |
1067 | |
1068 | |
1069 const TypeFunc *OptoRuntime::register_finalizer_Type() { | |
1070 // create input type (domain) | |
1071 const Type **fields = TypeTuple::fields(1); | |
1072 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
1073 // // The JavaThread* is passed to each routine as the last argument | |
1074 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
1075 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1076 | |
1077 // create result type (range) | |
1078 fields = TypeTuple::fields(0); | |
1079 | |
1080 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1081 | |
1082 return TypeFunc::make(domain,range); | |
1083 } | |
1084 | |
1085 | |
1086 //----------------------------------------------------------------------------- | |
1087 // Dtrace support. entry and exit probes have the same signature | |
1088 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
1089 // create input type (domain) | |
1090 const Type **fields = TypeTuple::fields(2); | |
1091 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1092 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering | |
1093 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1094 | |
1095 // create result type (range) | |
1096 fields = TypeTuple::fields(0); | |
1097 | |
1098 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1099 | |
1100 return TypeFunc::make(domain,range); | |
1101 } | |
1102 | |
1103 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
1104 // create input type (domain) | |
1105 const Type **fields = TypeTuple::fields(2); | |
1106 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1107 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
1108 | |
1109 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1110 | |
1111 // create result type (range) | |
1112 fields = TypeTuple::fields(0); | |
1113 | |
1114 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1115 | |
1116 return TypeFunc::make(domain,range); | |
1117 } | |
1118 | |
1119 | |
1120 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
1121 assert(obj->is_oop(), "must be a valid oop"); | |
1122 assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise"); | |
1123 instanceKlass::register_finalizer(instanceOop(obj), CHECK); | |
1124 JRT_END | |
1125 | |
1126 //----------------------------------------------------------------------------- | |
1127 | |
1128 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
1129 | |
1130 // | |
1131 // dump the collected NamedCounters. | |
1132 // | |
1133 void OptoRuntime::print_named_counters() { | |
1134 int total_lock_count = 0; | |
1135 int eliminated_lock_count = 0; | |
1136 | |
1137 NamedCounter* c = _named_counters; | |
1138 while (c) { | |
1139 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
1140 int count = c->count(); | |
1141 if (count > 0) { | |
1142 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
1143 if (Verbose) { | |
1144 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
1145 } | |
1146 total_lock_count += count; | |
1147 if (eliminated) { | |
1148 eliminated_lock_count += count; | |
1149 } | |
1150 } | |
1151 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
1152 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
1153 if (blc->nonzero()) { | |
1154 tty->print_cr("%s", c->name()); | |
1155 blc->print_on(tty); | |
1156 } | |
1157 } | |
1158 c = c->next(); | |
1159 } | |
1160 if (total_lock_count > 0) { | |
1161 tty->print_cr("dynamic locks: %d", total_lock_count); | |
1162 if (eliminated_lock_count) { | |
1163 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
1164 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
1165 } | |
1166 } | |
1167 } | |
1168 | |
1169 // | |
1170 // Allocate a new NamedCounter. The JVMState is used to generate the | |
1171 // name which consists of method@line for the inlining tree. | |
1172 // | |
1173 | |
1174 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
1175 int max_depth = youngest_jvms->depth(); | |
1176 | |
1177 // Visit scopes from youngest to oldest. | |
1178 bool first = true; | |
1179 stringStream st; | |
1180 for (int depth = max_depth; depth >= 1; depth--) { | |
1181 JVMState* jvms = youngest_jvms->of_depth(depth); | |
1182 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
1183 if (!first) { | |
1184 st.print(" "); | |
1185 } else { | |
1186 first = false; | |
1187 } | |
1188 int bci = jvms->bci(); | |
1189 if (bci < 0) bci = 0; | |
1190 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
1191 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
1192 } | |
1193 NamedCounter* c; | |
1194 if (tag == NamedCounter::BiasedLockingCounter) { | |
1195 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
1196 } else { | |
1197 c = new NamedCounter(strdup(st.as_string()), tag); | |
1198 } | |
1199 | |
1200 // atomically add the new counter to the head of the list. We only | |
1201 // add counters so this is safe. | |
1202 NamedCounter* head; | |
1203 do { | |
1204 head = _named_counters; | |
1205 c->set_next(head); | |
1206 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
1207 return c; | |
1208 } | |
1209 | |
1210 //----------------------------------------------------------------------------- | |
1211 // Non-product code | |
1212 #ifndef PRODUCT | |
1213 | |
1214 int trace_exception_counter = 0; | |
1215 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
1216 ttyLocker ttyl; | |
1217 trace_exception_counter++; | |
1218 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
1219 exception_oop->print_value(); | |
1220 tty->print(" in "); | |
1221 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
1222 if (blob->is_nmethod()) { | |
1223 ((nmethod*)blob)->method()->print_value(); | |
1224 } else if (blob->is_runtime_stub()) { | |
1225 tty->print("<runtime-stub>"); | |
1226 } else { | |
1227 tty->print("<unknown>"); | |
1228 } | |
1229 tty->print(" at " INTPTR_FORMAT, exception_pc); | |
1230 tty->print_cr("]"); | |
1231 } | |
1232 | |
1233 #endif // PRODUCT | |
1234 | |
1235 | |
1236 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1237 // Called from call sites in compiled code with oop maps (actually safepoints) | |
1238 // Zaps dead locals in first java frame. | |
1239 // Is entry because may need to lock to generate oop maps | |
1240 // Currently, only used for compiler frames, but someday may be used | |
1241 // for interpreter frames, too. | |
1242 | |
1243 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
1244 | |
1245 // avoid pointers to member funcs with these helpers | |
1246 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
1247 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
1248 | |
1249 | |
1250 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
1251 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
1252 assert(JavaThread::current() == thread, "is this needed?"); | |
1253 | |
1254 if ( !ZapDeadCompiledLocals ) return; | |
1255 | |
1256 bool skip = false; | |
1257 | |
1258 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
1259 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
1260 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
1261 warning("starting zapping after skipping"); | |
1262 | |
1263 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
1264 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
1265 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
1266 warning("about to zap last zap"); | |
1267 | |
1268 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
1269 | |
1270 if ( skip ) return; | |
1271 | |
1272 // find java frame and zap it | |
1273 | |
1274 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
1275 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
1276 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
1277 return; | |
1278 } | |
1279 } | |
1280 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
1281 } | |
1282 | |
1283 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
1284 zap_dead_java_or_native_locals(thread, is_java_frame); | |
1285 JRT_END | |
1286 | |
1287 // The following does not work because for one thing, the | |
1288 // thread state is wrong; it expects java, but it is native. | |
605 | 1289 // Also, the invariants in a native stub are different and |
0 | 1290 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
1291 // in there. | |
1292 // So for now, we do not zap in native stubs. | |
1293 | |
1294 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
1295 zap_dead_java_or_native_locals(thread, is_native_frame); | |
1296 JRT_END | |
1297 | |
1298 # endif |