Mercurial > hg > truffle
annotate src/share/vm/opto/runtime.cpp @ 3678:9482471a7dfa
IdealGraphVisualizer: add a workaround to fix layouting of the QuickSearch combobar with the GTK look and feel
author | Peter Hofer <peter.hofer@jku.at> |
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date | Mon, 21 Nov 2011 15:54:32 +0100 |
parents | f7d55ea6ee56 |
children | 263247c478c5 |
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 | |
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123 ExceptionBlob* OptoRuntime::_exception_blob; |
0 | 124 |
125 // This should be called in an assertion at the start of OptoRuntime routines | |
126 // which are entered from compiled code (all of them) | |
127 #ifndef PRODUCT | |
128 static bool check_compiled_frame(JavaThread* thread) { | |
129 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
130 #ifdef ASSERT | |
131 RegisterMap map(thread, false); | |
132 frame caller = thread->last_frame().sender(&map); | |
133 assert(caller.is_compiled_frame(), "not being called from compiled like code"); | |
134 #endif /* ASSERT */ | |
135 return true; | |
136 } | |
137 #endif | |
138 | |
139 | |
140 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ | |
141 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc) | |
142 | |
143 void OptoRuntime::generate(ciEnv* env) { | |
144 | |
145 generate_exception_blob(); | |
146 | |
147 // Note: tls: Means fetching the return oop out of the thread-local storage | |
148 // | |
149 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc | |
150 // ------------------------------------------------------------------------------------------------------------------------------- | |
151 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); | |
152 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); | |
153 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); | |
154 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); | |
155 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); | |
156 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); | |
342 | 157 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
158 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); | |
0 | 159 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false); |
160 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); | |
161 | |
162 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); | |
163 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); | |
164 | |
165 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
166 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); | |
167 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); | |
168 # endif | |
169 | |
170 } | |
171 | |
172 #undef gen | |
173 | |
174 | |
175 // Helper method to do generation of RunTimeStub's | |
176 address OptoRuntime::generate_stub( ciEnv* env, | |
177 TypeFunc_generator gen, address C_function, | |
178 const char *name, int is_fancy_jump, | |
179 bool pass_tls, | |
180 bool save_argument_registers, | |
181 bool return_pc ) { | |
182 ResourceMark rm; | |
183 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); | |
184 return C.stub_entry_point(); | |
185 } | |
186 | |
187 const char* OptoRuntime::stub_name(address entry) { | |
188 #ifndef PRODUCT | |
189 CodeBlob* cb = CodeCache::find_blob(entry); | |
190 RuntimeStub* rs =(RuntimeStub *)cb; | |
191 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); | |
192 return rs->name(); | |
193 #else | |
194 // Fast implementation for product mode (maybe it should be inlined too) | |
195 return "runtime stub"; | |
196 #endif | |
197 } | |
198 | |
199 | |
200 //============================================================================= | |
201 // Opto compiler runtime routines | |
202 //============================================================================= | |
203 | |
204 | |
205 //=============================allocation====================================== | |
206 // We failed the fast-path allocation. Now we need to do a scavenge or GC | |
207 // and try allocation again. | |
208 | |
1166 | 209 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { |
0 | 210 // After any safepoint, just before going back to compiled code, |
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211 // we inform the GC that we will be doing initializing writes to |
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212 // this object in the future without emitting card-marks, so |
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213 // GC may take any compensating steps. |
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214 // NOTE: Keep this code consistent with GraphKit::store_barrier. |
0 | 215 |
216 oop new_obj = thread->vm_result(); | |
217 if (new_obj == NULL) return; | |
218 | |
219 assert(Universe::heap()->can_elide_tlab_store_barriers(), | |
220 "compiler must check this first"); | |
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221 // GC may decide to give back a safer copy of new_obj. |
1166 | 222 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); |
0 | 223 thread->set_vm_result(new_obj); |
224 } | |
225 | |
226 // object allocation | |
227 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread)) | |
228 JRT_BLOCK; | |
229 #ifndef PRODUCT | |
230 SharedRuntime::_new_instance_ctr++; // new instance requires GC | |
231 #endif | |
232 assert(check_compiled_frame(thread), "incorrect caller"); | |
233 | |
234 // These checks are cheap to make and support reflective allocation. | |
235 int lh = Klass::cast(klass)->layout_helper(); | |
236 if (Klass::layout_helper_needs_slow_path(lh) | |
237 || !instanceKlass::cast(klass)->is_initialized()) { | |
238 KlassHandle kh(THREAD, klass); | |
239 kh->check_valid_for_instantiation(false, THREAD); | |
240 if (!HAS_PENDING_EXCEPTION) { | |
241 instanceKlass::cast(kh())->initialize(THREAD); | |
242 } | |
243 if (!HAS_PENDING_EXCEPTION) { | |
244 klass = kh(); | |
245 } else { | |
246 klass = NULL; | |
247 } | |
248 } | |
249 | |
250 if (klass != NULL) { | |
251 // Scavenge and allocate an instance. | |
252 oop result = instanceKlass::cast(klass)->allocate_instance(THREAD); | |
253 thread->set_vm_result(result); | |
254 | |
255 // Pass oops back through thread local storage. Our apparent type to Java | |
256 // is that we return an oop, but we can block on exit from this routine and | |
257 // a GC can trash the oop in C's return register. The generated stub will | |
258 // fetch the oop from TLS after any possible GC. | |
259 } | |
260 | |
261 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
262 JRT_BLOCK_END; | |
263 | |
264 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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265 // inform GC that we won't do card marks for initializing writes. |
1166 | 266 new_store_pre_barrier(thread); |
0 | 267 } |
268 JRT_END | |
269 | |
270 | |
271 // array allocation | |
272 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread)) | |
273 JRT_BLOCK; | |
274 #ifndef PRODUCT | |
275 SharedRuntime::_new_array_ctr++; // new array requires GC | |
276 #endif | |
277 assert(check_compiled_frame(thread), "incorrect caller"); | |
278 | |
279 // Scavenge and allocate an instance. | |
280 oop result; | |
281 | |
282 if (Klass::cast(array_type)->oop_is_typeArray()) { | |
283 // The oopFactory likes to work with the element type. | |
284 // (We could bypass the oopFactory, since it doesn't add much value.) | |
285 BasicType elem_type = typeArrayKlass::cast(array_type)->element_type(); | |
286 result = oopFactory::new_typeArray(elem_type, len, THREAD); | |
287 } else { | |
288 // Although the oopFactory likes to work with the elem_type, | |
289 // the compiler prefers the array_type, since it must already have | |
290 // that latter value in hand for the fast path. | |
291 klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass(); | |
292 result = oopFactory::new_objArray(elem_type, len, THREAD); | |
293 } | |
294 | |
295 // Pass oops back through thread local storage. Our apparent type to Java | |
296 // is that we return an oop, but we can block on exit from this routine and | |
297 // a GC can trash the oop in C's return register. The generated stub will | |
298 // fetch the oop from TLS after any possible GC. | |
299 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
300 thread->set_vm_result(result); | |
301 JRT_BLOCK_END; | |
302 | |
303 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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304 // inform GC that we won't do card marks for initializing writes. |
1166 | 305 new_store_pre_barrier(thread); |
0 | 306 } |
307 JRT_END | |
308 | |
309 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. | |
310 | |
311 // multianewarray for 2 dimensions | |
312 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread)) | |
313 #ifndef PRODUCT | |
314 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
315 #endif | |
316 assert(check_compiled_frame(thread), "incorrect caller"); | |
317 assert(oop(elem_type)->is_klass(), "not a class"); | |
318 jint dims[2]; | |
319 dims[0] = len1; | |
320 dims[1] = len2; | |
321 oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); | |
322 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
323 thread->set_vm_result(obj); | |
324 JRT_END | |
325 | |
326 // multianewarray for 3 dimensions | |
327 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread)) | |
328 #ifndef PRODUCT | |
329 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
330 #endif | |
331 assert(check_compiled_frame(thread), "incorrect caller"); | |
332 assert(oop(elem_type)->is_klass(), "not a class"); | |
333 jint dims[3]; | |
334 dims[0] = len1; | |
335 dims[1] = len2; | |
336 dims[2] = len3; | |
337 oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); | |
338 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
339 thread->set_vm_result(obj); | |
340 JRT_END | |
341 | |
342 // multianewarray for 4 dimensions | |
343 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) | |
344 #ifndef PRODUCT | |
345 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
346 #endif | |
347 assert(check_compiled_frame(thread), "incorrect caller"); | |
348 assert(oop(elem_type)->is_klass(), "not a class"); | |
349 jint dims[4]; | |
350 dims[0] = len1; | |
351 dims[1] = len2; | |
352 dims[2] = len3; | |
353 dims[3] = len4; | |
354 oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); | |
355 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
356 thread->set_vm_result(obj); | |
357 JRT_END | |
358 | |
359 // multianewarray for 5 dimensions | |
360 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) | |
361 #ifndef PRODUCT | |
362 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
363 #endif | |
364 assert(check_compiled_frame(thread), "incorrect caller"); | |
365 assert(oop(elem_type)->is_klass(), "not a class"); | |
366 jint dims[5]; | |
367 dims[0] = len1; | |
368 dims[1] = len2; | |
369 dims[2] = len3; | |
370 dims[3] = len4; | |
371 dims[4] = len5; | |
372 oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); | |
373 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
374 thread->set_vm_result(obj); | |
375 JRT_END | |
376 | |
377 const TypeFunc *OptoRuntime::new_instance_Type() { | |
378 // create input type (domain) | |
379 const Type **fields = TypeTuple::fields(1); | |
380 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
381 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
382 | |
383 // create result type (range) | |
384 fields = TypeTuple::fields(1); | |
385 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
386 | |
387 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
388 | |
389 return TypeFunc::make(domain, range); | |
390 } | |
391 | |
392 | |
393 const TypeFunc *OptoRuntime::athrow_Type() { | |
394 // create input type (domain) | |
395 const Type **fields = TypeTuple::fields(1); | |
396 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
397 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
398 | |
399 // create result type (range) | |
400 fields = TypeTuple::fields(0); | |
401 | |
402 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
403 | |
404 return TypeFunc::make(domain, range); | |
405 } | |
406 | |
407 | |
408 const TypeFunc *OptoRuntime::new_array_Type() { | |
409 // create input type (domain) | |
410 const Type **fields = TypeTuple::fields(2); | |
411 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
412 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
413 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
414 | |
415 // create result type (range) | |
416 fields = TypeTuple::fields(1); | |
417 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
418 | |
419 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
420 | |
421 return TypeFunc::make(domain, range); | |
422 } | |
423 | |
424 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
425 // create input type (domain) | |
426 const int nargs = ndim + 1; | |
427 const Type **fields = TypeTuple::fields(nargs); | |
428 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
429 for( int i = 1; i < nargs; i++ ) | |
430 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
431 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
432 | |
433 // create result type (range) | |
434 fields = TypeTuple::fields(1); | |
435 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
436 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
437 | |
438 return TypeFunc::make(domain, range); | |
439 } | |
440 | |
441 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
442 return multianewarray_Type(2); | |
443 } | |
444 | |
445 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
446 return multianewarray_Type(3); | |
447 } | |
448 | |
449 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
450 return multianewarray_Type(4); | |
451 } | |
452 | |
453 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
454 return multianewarray_Type(5); | |
455 } | |
456 | |
342 | 457 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
458 const Type **fields = TypeTuple::fields(2); | |
459 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
460 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
461 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
462 | |
463 // create result type (range) | |
464 fields = TypeTuple::fields(0); | |
465 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
466 | |
467 return TypeFunc::make(domain, range); | |
468 } | |
469 | |
470 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
471 | |
472 const Type **fields = TypeTuple::fields(2); | |
473 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
474 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
475 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
476 | |
477 // create result type (range) | |
478 fields = TypeTuple::fields(0); | |
479 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
480 | |
481 return TypeFunc::make(domain, range); | |
482 } | |
483 | |
0 | 484 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
485 // create input type (domain) | |
486 const Type **fields = TypeTuple::fields(1); | |
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487 // Symbol* name of class to be loaded |
0 | 488 fields[TypeFunc::Parms+0] = TypeInt::INT; |
489 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
490 | |
491 // create result type (range) | |
492 fields = TypeTuple::fields(0); | |
493 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
494 | |
495 return TypeFunc::make(domain, range); | |
496 } | |
497 | |
498 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
499 // Type used for stub generation for zap_dead_locals. | |
500 // No inputs or outputs | |
501 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
502 // create input type (domain) | |
503 const Type **fields = TypeTuple::fields(0); | |
504 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
505 | |
506 // create result type (range) | |
507 fields = TypeTuple::fields(0); | |
508 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
509 | |
510 return TypeFunc::make(domain,range); | |
511 } | |
512 # endif | |
513 | |
514 | |
515 //----------------------------------------------------------------------------- | |
516 // Monitor Handling | |
517 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
518 // create input type (domain) | |
519 const Type **fields = TypeTuple::fields(2); | |
520 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
521 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
522 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
523 | |
524 // create result type (range) | |
525 fields = TypeTuple::fields(0); | |
526 | |
527 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
528 | |
529 return TypeFunc::make(domain,range); | |
530 } | |
531 | |
532 | |
533 //----------------------------------------------------------------------------- | |
534 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
535 // create input type (domain) | |
536 const Type **fields = TypeTuple::fields(2); | |
537 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
538 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
539 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
540 | |
541 // create result type (range) | |
542 fields = TypeTuple::fields(0); | |
543 | |
544 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
545 | |
546 return TypeFunc::make(domain,range); | |
547 } | |
548 | |
549 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
550 // create input type (domain) | |
551 const Type** fields = TypeTuple::fields(1); | |
552 fields[TypeFunc::Parms+0] = NULL; // void | |
553 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
554 | |
555 // create result type | |
556 fields = TypeTuple::fields(1); | |
557 fields[TypeFunc::Parms+0] = NULL; // void | |
558 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
559 | |
560 return TypeFunc::make(domain, range); | |
561 } | |
562 | |
563 const TypeFunc* OptoRuntime::l2f_Type() { | |
564 // create input type (domain) | |
565 const Type **fields = TypeTuple::fields(2); | |
566 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
567 fields[TypeFunc::Parms+1] = Type::HALF; | |
568 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
569 | |
570 // create result type (range) | |
571 fields = TypeTuple::fields(1); | |
572 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
573 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
574 | |
575 return TypeFunc::make(domain, range); | |
576 } | |
577 | |
578 const TypeFunc* OptoRuntime::modf_Type() { | |
579 const Type **fields = TypeTuple::fields(2); | |
580 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
581 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
582 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
583 | |
584 // create result type (range) | |
585 fields = TypeTuple::fields(1); | |
586 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
587 | |
588 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
589 | |
590 return TypeFunc::make(domain, range); | |
591 } | |
592 | |
593 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
594 // create input type (domain) | |
595 const Type **fields = TypeTuple::fields(2); | |
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596 // Symbol* name of class to be loaded |
0 | 597 fields[TypeFunc::Parms+0] = Type::DOUBLE; |
598 fields[TypeFunc::Parms+1] = Type::HALF; | |
599 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
600 | |
601 // create result type (range) | |
602 fields = TypeTuple::fields(2); | |
603 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
604 fields[TypeFunc::Parms+1] = Type::HALF; | |
605 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
606 | |
607 return TypeFunc::make(domain, range); | |
608 } | |
609 | |
610 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
611 const Type **fields = TypeTuple::fields(4); | |
612 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
613 fields[TypeFunc::Parms+1] = Type::HALF; | |
614 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
615 fields[TypeFunc::Parms+3] = Type::HALF; | |
616 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
617 | |
618 // create result type (range) | |
619 fields = TypeTuple::fields(2); | |
620 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
621 fields[TypeFunc::Parms+1] = Type::HALF; | |
622 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
623 | |
624 return TypeFunc::make(domain, range); | |
625 } | |
626 | |
627 //-------------- currentTimeMillis | |
628 | |
629 const TypeFunc* OptoRuntime::current_time_millis_Type() { | |
630 // create input type (domain) | |
631 const Type **fields = TypeTuple::fields(0); | |
632 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
633 | |
634 // create result type (range) | |
635 fields = TypeTuple::fields(2); | |
636 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
637 fields[TypeFunc::Parms+1] = Type::HALF; | |
638 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
639 | |
640 return TypeFunc::make(domain, range); | |
641 } | |
642 | |
643 // arraycopy stub variations: | |
644 enum ArrayCopyType { | |
645 ac_fast, // void(ptr, ptr, size_t) | |
646 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
647 ac_slow, // void(ptr, int, ptr, int, int) | |
648 ac_generic // int(ptr, int, ptr, int, int) | |
649 }; | |
650 | |
651 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
652 // create input type (domain) | |
653 int num_args = (act == ac_fast ? 3 : 5); | |
654 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
655 int argcnt = num_args; | |
656 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
657 const Type** fields = TypeTuple::fields(argcnt); | |
658 int argp = TypeFunc::Parms; | |
659 fields[argp++] = TypePtr::NOTNULL; // src | |
660 if (num_size_args == 0) { | |
661 fields[argp++] = TypeInt::INT; // src_pos | |
662 } | |
663 fields[argp++] = TypePtr::NOTNULL; // dest | |
664 if (num_size_args == 0) { | |
665 fields[argp++] = TypeInt::INT; // dest_pos | |
666 fields[argp++] = TypeInt::INT; // length | |
667 } | |
668 while (num_size_args-- > 0) { | |
669 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
670 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
671 } | |
672 if (act == ac_checkcast) { | |
673 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
674 } | |
675 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
676 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
677 | |
678 // create result type if needed | |
679 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
680 fields = TypeTuple::fields(1); | |
681 if (retcnt == 0) | |
682 fields[TypeFunc::Parms+0] = NULL; // void | |
683 else | |
684 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
685 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
686 return TypeFunc::make(domain, range); | |
687 } | |
688 | |
689 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
690 // This signature is simple: Two base pointers and a size_t. | |
691 return make_arraycopy_Type(ac_fast); | |
692 } | |
693 | |
694 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
695 // An extension of fast_arraycopy_Type which adds type checking. | |
696 return make_arraycopy_Type(ac_checkcast); | |
697 } | |
698 | |
699 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
700 // This signature is exactly the same as System.arraycopy. | |
701 // There are no intptr_t (int/long) arguments. | |
702 return make_arraycopy_Type(ac_slow); | |
703 } | |
704 | |
705 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
706 // This signature is like System.arraycopy, except that it returns status. | |
707 return make_arraycopy_Type(ac_generic); | |
708 } | |
709 | |
710 | |
1763 | 711 const TypeFunc* OptoRuntime::array_fill_Type() { |
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712 // create input type (domain): pointer, int, size_t |
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713 const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1)); |
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714 int argp = TypeFunc::Parms; |
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715 fields[argp++] = TypePtr::NOTNULL; |
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716 fields[argp++] = TypeInt::INT; |
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717 fields[argp++] = TypeX_X; // size in whatevers (size_t) |
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718 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
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719 const TypeTuple *domain = TypeTuple::make(argp, fields); |
1763 | 720 |
721 // create result type | |
722 fields = TypeTuple::fields(1); | |
723 fields[TypeFunc::Parms+0] = NULL; // void | |
724 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
725 | |
726 return TypeFunc::make(domain, range); | |
727 } | |
728 | |
0 | 729 //------------- Interpreter state access for on stack replacement |
730 const TypeFunc* OptoRuntime::osr_end_Type() { | |
731 // create input type (domain) | |
732 const Type **fields = TypeTuple::fields(1); | |
733 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
734 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
735 | |
736 // create result type | |
737 fields = TypeTuple::fields(1); | |
738 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
739 fields[TypeFunc::Parms+0] = NULL; // void | |
740 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
741 return TypeFunc::make(domain, range); | |
742 } | |
743 | |
744 //-------------- methodData update helpers | |
745 | |
746 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
747 // create input type (domain) | |
748 const Type **fields = TypeTuple::fields(2); | |
749 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
750 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
751 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
752 | |
753 // create result type | |
754 fields = TypeTuple::fields(1); | |
755 fields[TypeFunc::Parms+0] = NULL; // void | |
756 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
757 return TypeFunc::make(domain,range); | |
758 } | |
759 | |
760 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
761 if (receiver == NULL) return; | |
762 klassOop receiver_klass = receiver->klass(); | |
763 | |
764 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
765 int empty_row = -1; // free row, if any is encountered | |
766 | |
767 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
768 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
769 // if (vc->receiver(row) == receiver_klass) | |
770 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
771 intptr_t row_recv = *(mdp + receiver_off); | |
772 if (row_recv == (intptr_t) receiver_klass) { | |
773 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
774 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
775 *(mdp + count_off) += DataLayout::counter_increment; | |
776 return; | |
777 } else if (row_recv == 0) { | |
778 // else if (vc->receiver(row) == NULL) | |
779 empty_row = (int) row; | |
780 } | |
781 } | |
782 | |
783 if (empty_row != -1) { | |
784 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
785 // vc->set_receiver(empty_row, receiver_klass); | |
786 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
787 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
788 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
789 *(mdp + count_off) = DataLayout::counter_increment; | |
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790 } else { |
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791 // Receiver did not match any saved receiver and there is no empty row for it. |
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792 // Increment total counter to indicate polymorphic case. |
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793 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); |
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794 *count_p += DataLayout::counter_increment; |
0 | 795 } |
796 JRT_END | |
797 | |
798 //----------------------------------------------------------------------------- | |
799 // implicit exception support. | |
800 | |
801 static void report_null_exception_in_code_cache(address exception_pc) { | |
802 ResourceMark rm; | |
803 CodeBlob* n = CodeCache::find_blob(exception_pc); | |
804 if (n != NULL) { | |
805 tty->print_cr("#"); | |
806 tty->print_cr("# HotSpot Runtime Error, null exception in generated code"); | |
807 tty->print_cr("#"); | |
808 tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc); | |
809 | |
810 if (n->is_nmethod()) { | |
811 methodOop method = ((nmethod*)n)->method(); | |
812 tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string()); | |
813 tty->print_cr("#"); | |
814 if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) { | |
815 const char* title = "HotSpot Runtime Error"; | |
816 const char* question = "Do you want to exclude compilation of this method in future runs?"; | |
817 if (os::message_box(title, question)) { | |
818 CompilerOracle::append_comment_to_file(""); | |
819 CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude"); | |
820 CompilerOracle::append_comment_to_file(""); | |
821 CompilerOracle::append_exclude_to_file(method); | |
822 tty->print_cr("#"); | |
823 tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile); | |
824 tty->print_cr("#"); | |
825 } | |
826 } | |
827 fatal("Implicit null exception happened in compiled method"); | |
828 } else { | |
829 n->print(); | |
830 fatal("Implicit null exception happened in generated stub"); | |
831 } | |
832 } | |
833 fatal("Implicit null exception at wrong place"); | |
834 } | |
835 | |
836 | |
837 //------------------------------------------------------------------------------------- | |
838 // register policy | |
839 | |
840 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
841 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
842 switch (register_save_policy[reg]) { | |
843 case 'C': return false; //SOC | |
844 case 'E': return true ; //SOE | |
845 case 'N': return false; //NS | |
846 case 'A': return false; //AS | |
847 } | |
848 ShouldNotReachHere(); | |
849 return false; | |
850 } | |
851 | |
852 //----------------------------------------------------------------------- | |
853 // Exceptions | |
854 // | |
855 | |
856 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
857 | |
858 // The method is an entry that is always called by a C++ method not | |
859 // directly from compiled code. Compiled code will call the C++ method following. | |
860 // We can't allow async exception to be installed during exception processing. | |
861 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
862 | |
863 // Do not confuse exception_oop with pending_exception. The exception_oop | |
864 // is only used to pass arguments into the method. Not for general | |
865 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
866 // the runtime stubs checks this on exit. | |
867 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
868 address handler_address = NULL; | |
869 | |
870 Handle exception(thread, thread->exception_oop()); | |
871 | |
872 if (TraceExceptions) { | |
873 trace_exception(exception(), thread->exception_pc(), ""); | |
874 } | |
875 // for AbortVMOnException flag | |
876 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
877 | |
878 #ifdef ASSERT | |
1142 | 879 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 880 // should throw an exception here |
881 ShouldNotReachHere(); | |
882 } | |
883 #endif | |
884 | |
885 | |
886 // new exception handling: this method is entered only from adapters | |
887 // exceptions from compiled java methods are handled in compiled code | |
888 // using rethrow node | |
889 | |
890 address pc = thread->exception_pc(); | |
891 nm = CodeCache::find_nmethod(pc); | |
892 assert(nm != NULL, "No NMethod found"); | |
893 if (nm->is_native_method()) { | |
894 fatal("Native mathod should not have path to exception handling"); | |
895 } else { | |
896 // we are switching to old paradigm: search for exception handler in caller_frame | |
897 // instead in exception handler of caller_frame.sender() | |
898 | |
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899 if (JvmtiExport::can_post_on_exceptions()) { |
0 | 900 // "Full-speed catching" is not necessary here, |
901 // since we're notifying the VM on every catch. | |
902 // Force deoptimization and the rest of the lookup | |
903 // will be fine. | |
904 deoptimize_caller_frame(thread, true); | |
905 } | |
906 | |
907 // Check the stack guard pages. If enabled, look for handler in this frame; | |
908 // otherwise, forcibly unwind the frame. | |
909 // | |
910 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
911 bool force_unwind = !thread->reguard_stack(); | |
912 bool deopting = false; | |
913 if (nm->is_deopt_pc(pc)) { | |
914 deopting = true; | |
915 RegisterMap map(thread, false); | |
916 frame deoptee = thread->last_frame().sender(&map); | |
917 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
918 // Adjust the pc back to the original throwing pc | |
919 pc = deoptee.pc(); | |
920 } | |
921 | |
922 // If we are forcing an unwind because of stack overflow then deopt is | |
923 // irrelevant sice we are throwing the frame away anyway. | |
924 | |
925 if (deopting && !force_unwind) { | |
926 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
927 } else { | |
928 | |
929 handler_address = | |
930 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
931 | |
932 if (handler_address == NULL) { | |
933 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); | |
934 assert (handler_address != NULL, "must have compiled handler"); | |
935 // Update the exception cache only when the unwind was not forced. | |
936 if (!force_unwind) { | |
937 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); | |
938 } | |
939 } else { | |
940 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
941 } | |
942 } | |
943 | |
944 thread->set_exception_pc(pc); | |
945 thread->set_exception_handler_pc(handler_address); | |
946 thread->set_exception_stack_size(0); | |
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1295 | 948 // Check if the exception PC is a MethodHandle call site. |
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949 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); |
0 | 950 } |
951 | |
952 // Restore correct return pc. Was saved above. | |
953 thread->set_exception_oop(exception()); | |
954 return handler_address; | |
955 | |
956 JRT_END | |
957 | |
958 // We are entering here from exception_blob | |
959 // If there is a compiled exception handler in this method, we will continue there; | |
960 // otherwise we will unwind the stack and continue at the caller of top frame method | |
961 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
962 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
963 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
964 // we must not use the handler and instread return the deopt blob. | |
965 address OptoRuntime::handle_exception_C(JavaThread* thread) { | |
966 // | |
967 // We are in Java not VM and in debug mode we have a NoHandleMark | |
968 // | |
969 #ifndef PRODUCT | |
970 SharedRuntime::_find_handler_ctr++; // find exception handler | |
971 #endif | |
972 debug_only(NoHandleMark __hm;) | |
973 nmethod* nm = NULL; | |
974 address handler_address = NULL; | |
975 { | |
976 // Enter the VM | |
977 | |
978 ResetNoHandleMark rnhm; | |
979 handler_address = handle_exception_C_helper(thread, nm); | |
980 } | |
981 | |
982 // Back in java: Use no oops, DON'T safepoint | |
983 | |
984 // Now check to see if the handler we are returning is in a now | |
985 // deoptimized frame | |
986 | |
987 if (nm != NULL) { | |
988 RegisterMap map(thread, false); | |
989 frame caller = thread->last_frame().sender(&map); | |
990 #ifdef ASSERT | |
991 assert(caller.is_compiled_frame(), "must be"); | |
992 #endif // ASSERT | |
993 if (caller.is_deoptimized_frame()) { | |
994 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
995 } | |
996 } | |
997 return handler_address; | |
998 } | |
999 | |
1000 //------------------------------rethrow---------------------------------------- | |
1001 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
1002 // is either throwing or rethrowing an exception. The callee-save registers | |
1003 // have been restored, synchronized objects have been unlocked and the callee | |
1004 // stack frame has been removed. The return address was passed in. | |
1005 // Exception oop is passed as the 1st argument. This routine is then called | |
1006 // from the stub. On exit, we know where to jump in the caller's code. | |
1007 // After this C code exits, the stub will pop his frame and end in a jump | |
1008 // (instead of a return). We enter the caller's default handler. | |
1009 // | |
1010 // This must be JRT_LEAF: | |
1011 // - caller will not change its state as we cannot block on exit, | |
1012 // therefore raw_exception_handler_for_return_address is all it takes | |
1013 // to handle deoptimized blobs | |
1014 // | |
1015 // However, there needs to be a safepoint check in the middle! So compiled | |
1016 // safepoints are completely watertight. | |
1017 // | |
1018 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
1019 // | |
1020 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
1021 // | |
1022 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
1023 #ifndef PRODUCT | |
1024 SharedRuntime::_rethrow_ctr++; // count rethrows | |
1025 #endif | |
1026 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
1027 #ifdef ASSERT | |
1142 | 1028 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 1029 // should throw an exception here |
1030 ShouldNotReachHere(); | |
1031 } | |
1032 #endif | |
1033 | |
1034 thread->set_vm_result(exception); | |
1035 // Frame not compiled (handles deoptimization blob) | |
1295 | 1036 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); |
0 | 1037 } |
1038 | |
1039 | |
1040 const TypeFunc *OptoRuntime::rethrow_Type() { | |
1041 // create input type (domain) | |
1042 const Type **fields = TypeTuple::fields(1); | |
1043 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1044 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1045 | |
1046 // create result type (range) | |
1047 fields = TypeTuple::fields(1); | |
1048 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1049 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
1050 | |
1051 return TypeFunc::make(domain, range); | |
1052 } | |
1053 | |
1054 | |
1055 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
1056 // Deoptimize frame | |
1057 if (doit) { | |
1058 // Called from within the owner thread, so no need for safepoint | |
1059 RegisterMap reg_map(thread); | |
1060 frame stub_frame = thread->last_frame(); | |
1061 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); | |
1062 frame caller_frame = stub_frame.sender(®_map); | |
1063 | |
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1064 // bypass VM_DeoptimizeFrame and deoptimize the frame directly |
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1065 Deoptimization::deoptimize_frame(thread, caller_frame.id()); |
0 | 1066 } |
1067 } | |
1068 | |
1069 | |
1070 const TypeFunc *OptoRuntime::register_finalizer_Type() { | |
1071 // create input type (domain) | |
1072 const Type **fields = TypeTuple::fields(1); | |
1073 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
1074 // // The JavaThread* is passed to each routine as the last argument | |
1075 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
1076 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1077 | |
1078 // create result type (range) | |
1079 fields = TypeTuple::fields(0); | |
1080 | |
1081 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1082 | |
1083 return TypeFunc::make(domain,range); | |
1084 } | |
1085 | |
1086 | |
1087 //----------------------------------------------------------------------------- | |
1088 // Dtrace support. entry and exit probes have the same signature | |
1089 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
1090 // create input type (domain) | |
1091 const Type **fields = TypeTuple::fields(2); | |
1092 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1093 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering | |
1094 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1095 | |
1096 // create result type (range) | |
1097 fields = TypeTuple::fields(0); | |
1098 | |
1099 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1100 | |
1101 return TypeFunc::make(domain,range); | |
1102 } | |
1103 | |
1104 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
1105 // create input type (domain) | |
1106 const Type **fields = TypeTuple::fields(2); | |
1107 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1108 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
1109 | |
1110 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1111 | |
1112 // create result type (range) | |
1113 fields = TypeTuple::fields(0); | |
1114 | |
1115 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1116 | |
1117 return TypeFunc::make(domain,range); | |
1118 } | |
1119 | |
1120 | |
1121 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
1122 assert(obj->is_oop(), "must be a valid oop"); | |
1123 assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise"); | |
1124 instanceKlass::register_finalizer(instanceOop(obj), CHECK); | |
1125 JRT_END | |
1126 | |
1127 //----------------------------------------------------------------------------- | |
1128 | |
1129 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
1130 | |
1131 // | |
1132 // dump the collected NamedCounters. | |
1133 // | |
1134 void OptoRuntime::print_named_counters() { | |
1135 int total_lock_count = 0; | |
1136 int eliminated_lock_count = 0; | |
1137 | |
1138 NamedCounter* c = _named_counters; | |
1139 while (c) { | |
1140 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
1141 int count = c->count(); | |
1142 if (count > 0) { | |
1143 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
1144 if (Verbose) { | |
1145 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
1146 } | |
1147 total_lock_count += count; | |
1148 if (eliminated) { | |
1149 eliminated_lock_count += count; | |
1150 } | |
1151 } | |
1152 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
1153 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
1154 if (blc->nonzero()) { | |
1155 tty->print_cr("%s", c->name()); | |
1156 blc->print_on(tty); | |
1157 } | |
1158 } | |
1159 c = c->next(); | |
1160 } | |
1161 if (total_lock_count > 0) { | |
1162 tty->print_cr("dynamic locks: %d", total_lock_count); | |
1163 if (eliminated_lock_count) { | |
1164 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
1165 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
1166 } | |
1167 } | |
1168 } | |
1169 | |
1170 // | |
1171 // Allocate a new NamedCounter. The JVMState is used to generate the | |
1172 // name which consists of method@line for the inlining tree. | |
1173 // | |
1174 | |
1175 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
1176 int max_depth = youngest_jvms->depth(); | |
1177 | |
1178 // Visit scopes from youngest to oldest. | |
1179 bool first = true; | |
1180 stringStream st; | |
1181 for (int depth = max_depth; depth >= 1; depth--) { | |
1182 JVMState* jvms = youngest_jvms->of_depth(depth); | |
1183 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
1184 if (!first) { | |
1185 st.print(" "); | |
1186 } else { | |
1187 first = false; | |
1188 } | |
1189 int bci = jvms->bci(); | |
1190 if (bci < 0) bci = 0; | |
1191 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
1192 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
1193 } | |
1194 NamedCounter* c; | |
1195 if (tag == NamedCounter::BiasedLockingCounter) { | |
1196 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
1197 } else { | |
1198 c = new NamedCounter(strdup(st.as_string()), tag); | |
1199 } | |
1200 | |
1201 // atomically add the new counter to the head of the list. We only | |
1202 // add counters so this is safe. | |
1203 NamedCounter* head; | |
1204 do { | |
1205 head = _named_counters; | |
1206 c->set_next(head); | |
1207 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
1208 return c; | |
1209 } | |
1210 | |
1211 //----------------------------------------------------------------------------- | |
1212 // Non-product code | |
1213 #ifndef PRODUCT | |
1214 | |
1215 int trace_exception_counter = 0; | |
1216 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
1217 ttyLocker ttyl; | |
1218 trace_exception_counter++; | |
1219 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
1220 exception_oop->print_value(); | |
1221 tty->print(" in "); | |
1222 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
1223 if (blob->is_nmethod()) { | |
1224 ((nmethod*)blob)->method()->print_value(); | |
1225 } else if (blob->is_runtime_stub()) { | |
1226 tty->print("<runtime-stub>"); | |
1227 } else { | |
1228 tty->print("<unknown>"); | |
1229 } | |
1230 tty->print(" at " INTPTR_FORMAT, exception_pc); | |
1231 tty->print_cr("]"); | |
1232 } | |
1233 | |
1234 #endif // PRODUCT | |
1235 | |
1236 | |
1237 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1238 // Called from call sites in compiled code with oop maps (actually safepoints) | |
1239 // Zaps dead locals in first java frame. | |
1240 // Is entry because may need to lock to generate oop maps | |
1241 // Currently, only used for compiler frames, but someday may be used | |
1242 // for interpreter frames, too. | |
1243 | |
1244 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
1245 | |
1246 // avoid pointers to member funcs with these helpers | |
1247 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
1248 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
1249 | |
1250 | |
1251 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
1252 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
1253 assert(JavaThread::current() == thread, "is this needed?"); | |
1254 | |
1255 if ( !ZapDeadCompiledLocals ) return; | |
1256 | |
1257 bool skip = false; | |
1258 | |
1259 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
1260 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
1261 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
1262 warning("starting zapping after skipping"); | |
1263 | |
1264 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
1265 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
1266 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
1267 warning("about to zap last zap"); | |
1268 | |
1269 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
1270 | |
1271 if ( skip ) return; | |
1272 | |
1273 // find java frame and zap it | |
1274 | |
1275 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
1276 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
1277 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
1278 return; | |
1279 } | |
1280 } | |
1281 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
1282 } | |
1283 | |
1284 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
1285 zap_dead_java_or_native_locals(thread, is_java_frame); | |
1286 JRT_END | |
1287 | |
1288 // The following does not work because for one thing, the | |
1289 // thread state is wrong; it expects java, but it is native. | |
605 | 1290 // Also, the invariants in a native stub are different and |
0 | 1291 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
1292 // in there. | |
1293 // So for now, we do not zap in native stubs. | |
1294 | |
1295 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
1296 zap_dead_java_or_native_locals(thread, is_native_frame); | |
1297 JRT_END | |
1298 | |
1299 # endif |