Mercurial > hg > truffle
annotate src/share/vm/opto/runtime.cpp @ 9450:ca34e36c53e8
Add loop safepoint elimination
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Tue, 30 Apr 2013 21:38:48 +0200 |
parents | f2aebc22372a |
children | 836a62f43af9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2012, 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; | |
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105 address OptoRuntime::_new_array_nozero_Java = NULL; |
0 | 106 address OptoRuntime::_multianewarray2_Java = NULL; |
107 address OptoRuntime::_multianewarray3_Java = NULL; | |
108 address OptoRuntime::_multianewarray4_Java = NULL; | |
109 address OptoRuntime::_multianewarray5_Java = NULL; | |
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110 address OptoRuntime::_multianewarrayN_Java = NULL; |
342 | 111 address OptoRuntime::_g1_wb_pre_Java = NULL; |
112 address OptoRuntime::_g1_wb_post_Java = NULL; | |
0 | 113 address OptoRuntime::_vtable_must_compile_Java = NULL; |
114 address OptoRuntime::_complete_monitor_locking_Java = NULL; | |
115 address OptoRuntime::_rethrow_Java = NULL; | |
116 | |
117 address OptoRuntime::_slow_arraycopy_Java = NULL; | |
118 address OptoRuntime::_register_finalizer_Java = NULL; | |
119 | |
120 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
121 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; | |
122 address OptoRuntime::_zap_dead_native_locals_Java = NULL; | |
123 # endif | |
124 | |
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125 ExceptionBlob* OptoRuntime::_exception_blob; |
0 | 126 |
127 // This should be called in an assertion at the start of OptoRuntime routines | |
128 // which are entered from compiled code (all of them) | |
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129 #ifdef ASSERT |
0 | 130 static bool check_compiled_frame(JavaThread* thread) { |
131 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
132 RegisterMap map(thread, false); | |
133 frame caller = thread->last_frame().sender(&map); | |
134 assert(caller.is_compiled_frame(), "not being called from compiled like code"); | |
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); | |
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153 gen(env, _new_array_nozero_Java , new_array_Type , new_array_nozero_C , 0 , true , false, false); |
0 | 154 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); |
155 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); | |
156 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); | |
157 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); | |
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158 gen(env, _multianewarrayN_Java , multianewarrayN_Type , multianewarrayN_C , 0 , true , false, false); |
342 | 159 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
160 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); | |
0 | 161 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false); |
162 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); | |
163 | |
164 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); | |
165 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); | |
166 | |
167 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
168 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); | |
169 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); | |
170 # endif | |
171 | |
172 } | |
173 | |
174 #undef gen | |
175 | |
176 | |
177 // Helper method to do generation of RunTimeStub's | |
178 address OptoRuntime::generate_stub( ciEnv* env, | |
179 TypeFunc_generator gen, address C_function, | |
180 const char *name, int is_fancy_jump, | |
181 bool pass_tls, | |
182 bool save_argument_registers, | |
183 bool return_pc ) { | |
184 ResourceMark rm; | |
185 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); | |
186 return C.stub_entry_point(); | |
187 } | |
188 | |
189 const char* OptoRuntime::stub_name(address entry) { | |
190 #ifndef PRODUCT | |
191 CodeBlob* cb = CodeCache::find_blob(entry); | |
192 RuntimeStub* rs =(RuntimeStub *)cb; | |
193 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); | |
194 return rs->name(); | |
195 #else | |
196 // Fast implementation for product mode (maybe it should be inlined too) | |
197 return "runtime stub"; | |
198 #endif | |
199 } | |
200 | |
201 | |
202 //============================================================================= | |
203 // Opto compiler runtime routines | |
204 //============================================================================= | |
205 | |
206 | |
207 //=============================allocation====================================== | |
208 // We failed the fast-path allocation. Now we need to do a scavenge or GC | |
209 // and try allocation again. | |
210 | |
1166 | 211 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { |
0 | 212 // After any safepoint, just before going back to compiled code, |
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213 // we inform the GC that we will be doing initializing writes to |
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214 // this object in the future without emitting card-marks, so |
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215 // GC may take any compensating steps. |
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216 // NOTE: Keep this code consistent with GraphKit::store_barrier. |
0 | 217 |
218 oop new_obj = thread->vm_result(); | |
219 if (new_obj == NULL) return; | |
220 | |
221 assert(Universe::heap()->can_elide_tlab_store_barriers(), | |
222 "compiler must check this first"); | |
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223 // GC may decide to give back a safer copy of new_obj. |
1166 | 224 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); |
0 | 225 thread->set_vm_result(new_obj); |
226 } | |
227 | |
228 // object allocation | |
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229 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(Klass* klass, JavaThread* thread)) |
0 | 230 JRT_BLOCK; |
231 #ifndef PRODUCT | |
232 SharedRuntime::_new_instance_ctr++; // new instance requires GC | |
233 #endif | |
234 assert(check_compiled_frame(thread), "incorrect caller"); | |
235 | |
236 // These checks are cheap to make and support reflective allocation. | |
6983 | 237 int lh = klass->layout_helper(); |
0 | 238 if (Klass::layout_helper_needs_slow_path(lh) |
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239 || !InstanceKlass::cast(klass)->is_initialized()) { |
0 | 240 KlassHandle kh(THREAD, klass); |
241 kh->check_valid_for_instantiation(false, THREAD); | |
242 if (!HAS_PENDING_EXCEPTION) { | |
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243 InstanceKlass::cast(kh())->initialize(THREAD); |
0 | 244 } |
245 if (!HAS_PENDING_EXCEPTION) { | |
246 klass = kh(); | |
247 } else { | |
248 klass = NULL; | |
249 } | |
250 } | |
251 | |
252 if (klass != NULL) { | |
253 // Scavenge and allocate an instance. | |
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254 oop result = InstanceKlass::cast(klass)->allocate_instance(THREAD); |
0 | 255 thread->set_vm_result(result); |
256 | |
257 // Pass oops back through thread local storage. Our apparent type to Java | |
258 // is that we return an oop, but we can block on exit from this routine and | |
259 // a GC can trash the oop in C's return register. The generated stub will | |
260 // fetch the oop from TLS after any possible GC. | |
261 } | |
262 | |
263 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
264 JRT_BLOCK_END; | |
265 | |
266 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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267 // inform GC that we won't do card marks for initializing writes. |
1166 | 268 new_store_pre_barrier(thread); |
0 | 269 } |
270 JRT_END | |
271 | |
272 | |
273 // array allocation | |
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274 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(Klass* array_type, int len, JavaThread *thread)) |
0 | 275 JRT_BLOCK; |
276 #ifndef PRODUCT | |
277 SharedRuntime::_new_array_ctr++; // new array requires GC | |
278 #endif | |
279 assert(check_compiled_frame(thread), "incorrect caller"); | |
280 | |
281 // Scavenge and allocate an instance. | |
282 oop result; | |
283 | |
6983 | 284 if (array_type->oop_is_typeArray()) { |
0 | 285 // The oopFactory likes to work with the element type. |
286 // (We could bypass the oopFactory, since it doesn't add much value.) | |
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287 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
0 | 288 result = oopFactory::new_typeArray(elem_type, len, THREAD); |
289 } else { | |
290 // Although the oopFactory likes to work with the elem_type, | |
291 // the compiler prefers the array_type, since it must already have | |
292 // that latter value in hand for the fast path. | |
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293 Klass* elem_type = ObjArrayKlass::cast(array_type)->element_klass(); |
0 | 294 result = oopFactory::new_objArray(elem_type, len, THREAD); |
295 } | |
296 | |
297 // Pass oops back through thread local storage. Our apparent type to Java | |
298 // is that we return an oop, but we can block on exit from this routine and | |
299 // a GC can trash the oop in C's return register. The generated stub will | |
300 // fetch the oop from TLS after any possible GC. | |
301 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
302 thread->set_vm_result(result); | |
303 JRT_BLOCK_END; | |
304 | |
305 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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306 // inform GC that we won't do card marks for initializing writes. |
1166 | 307 new_store_pre_barrier(thread); |
0 | 308 } |
309 JRT_END | |
310 | |
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311 // array allocation without zeroing |
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312 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(Klass* array_type, int len, JavaThread *thread)) |
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313 JRT_BLOCK; |
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314 #ifndef PRODUCT |
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315 SharedRuntime::_new_array_ctr++; // new array requires GC |
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316 #endif |
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317 assert(check_compiled_frame(thread), "incorrect caller"); |
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318 |
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319 // Scavenge and allocate an instance. |
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320 oop result; |
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321 |
6983 | 322 assert(array_type->oop_is_typeArray(), "should be called only for type array"); |
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323 // The oopFactory likes to work with the element type. |
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324 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
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325 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD); |
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326 |
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327 // Pass oops back through thread local storage. Our apparent type to Java |
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328 // is that we return an oop, but we can block on exit from this routine and |
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329 // a GC can trash the oop in C's return register. The generated stub will |
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330 // fetch the oop from TLS after any possible GC. |
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331 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
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332 thread->set_vm_result(result); |
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333 JRT_BLOCK_END; |
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334 |
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335 if (GraphKit::use_ReduceInitialCardMarks()) { |
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336 // inform GC that we won't do card marks for initializing writes. |
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337 new_store_pre_barrier(thread); |
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338 } |
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339 |
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340 oop result = thread->vm_result(); |
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341 if ((len > 0) && (result != NULL) && |
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342 is_deoptimized_caller_frame(thread)) { |
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343 // Zero array here if the caller is deoptimized. |
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344 int size = ((typeArrayOop)result)->object_size(); |
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345 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
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346 const size_t hs = arrayOopDesc::header_size(elem_type); |
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347 // Align to next 8 bytes to avoid trashing arrays's length. |
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348 const size_t aligned_hs = align_object_offset(hs); |
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349 HeapWord* obj = (HeapWord*)result; |
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350 if (aligned_hs > hs) { |
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351 Copy::zero_to_words(obj+hs, aligned_hs-hs); |
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352 } |
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353 // Optimized zeroing. |
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354 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs); |
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355 } |
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356 |
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357 JRT_END |
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358 |
0 | 359 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. |
360 | |
361 // multianewarray for 2 dimensions | |
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362 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(Klass* elem_type, int len1, int len2, JavaThread *thread)) |
0 | 363 #ifndef PRODUCT |
364 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
365 #endif | |
366 assert(check_compiled_frame(thread), "incorrect caller"); | |
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367 assert(elem_type->is_klass(), "not a class"); |
0 | 368 jint dims[2]; |
369 dims[0] = len1; | |
370 dims[1] = len2; | |
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371 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); |
0 | 372 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
373 thread->set_vm_result(obj); | |
374 JRT_END | |
375 | |
376 // multianewarray for 3 dimensions | |
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377 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(Klass* elem_type, int len1, int len2, int len3, JavaThread *thread)) |
0 | 378 #ifndef PRODUCT |
379 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
380 #endif | |
381 assert(check_compiled_frame(thread), "incorrect caller"); | |
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382 assert(elem_type->is_klass(), "not a class"); |
0 | 383 jint dims[3]; |
384 dims[0] = len1; | |
385 dims[1] = len2; | |
386 dims[2] = len3; | |
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387 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); |
0 | 388 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
389 thread->set_vm_result(obj); | |
390 JRT_END | |
391 | |
392 // multianewarray for 4 dimensions | |
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393 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(Klass* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) |
0 | 394 #ifndef PRODUCT |
395 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
396 #endif | |
397 assert(check_compiled_frame(thread), "incorrect caller"); | |
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398 assert(elem_type->is_klass(), "not a class"); |
0 | 399 jint dims[4]; |
400 dims[0] = len1; | |
401 dims[1] = len2; | |
402 dims[2] = len3; | |
403 dims[3] = len4; | |
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404 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); |
0 | 405 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
406 thread->set_vm_result(obj); | |
407 JRT_END | |
408 | |
409 // multianewarray for 5 dimensions | |
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410 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(Klass* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) |
0 | 411 #ifndef PRODUCT |
412 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
413 #endif | |
414 assert(check_compiled_frame(thread), "incorrect caller"); | |
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415 assert(elem_type->is_klass(), "not a class"); |
0 | 416 jint dims[5]; |
417 dims[0] = len1; | |
418 dims[1] = len2; | |
419 dims[2] = len3; | |
420 dims[3] = len4; | |
421 dims[4] = len5; | |
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422 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); |
0 | 423 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
424 thread->set_vm_result(obj); | |
425 JRT_END | |
426 | |
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427 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(Klass* elem_type, arrayOopDesc* dims, JavaThread *thread)) |
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428 assert(check_compiled_frame(thread), "incorrect caller"); |
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429 assert(elem_type->is_klass(), "not a class"); |
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430 assert(oop(dims)->is_typeArray(), "not an array"); |
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431 |
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432 ResourceMark rm; |
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433 jint len = dims->length(); |
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434 assert(len > 0, "Dimensions array should contain data"); |
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435 jint *j_dims = typeArrayOop(dims)->int_at_addr(0); |
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436 jint *c_dims = NEW_RESOURCE_ARRAY(jint, len); |
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437 Copy::conjoint_jints_atomic(j_dims, c_dims, len); |
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438 |
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439 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD); |
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440 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
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441 thread->set_vm_result(obj); |
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442 JRT_END |
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443 |
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444 |
0 | 445 const TypeFunc *OptoRuntime::new_instance_Type() { |
446 // create input type (domain) | |
447 const Type **fields = TypeTuple::fields(1); | |
448 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
449 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
450 | |
451 // create result type (range) | |
452 fields = TypeTuple::fields(1); | |
453 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
454 | |
455 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
456 | |
457 return TypeFunc::make(domain, range); | |
458 } | |
459 | |
460 | |
461 const TypeFunc *OptoRuntime::athrow_Type() { | |
462 // create input type (domain) | |
463 const Type **fields = TypeTuple::fields(1); | |
464 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
465 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
466 | |
467 // create result type (range) | |
468 fields = TypeTuple::fields(0); | |
469 | |
470 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
471 | |
472 return TypeFunc::make(domain, range); | |
473 } | |
474 | |
475 | |
476 const TypeFunc *OptoRuntime::new_array_Type() { | |
477 // create input type (domain) | |
478 const Type **fields = TypeTuple::fields(2); | |
479 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
480 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
481 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
482 | |
483 // create result type (range) | |
484 fields = TypeTuple::fields(1); | |
485 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
486 | |
487 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
488 | |
489 return TypeFunc::make(domain, range); | |
490 } | |
491 | |
492 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
493 // create input type (domain) | |
494 const int nargs = ndim + 1; | |
495 const Type **fields = TypeTuple::fields(nargs); | |
496 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
497 for( int i = 1; i < nargs; i++ ) | |
498 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
499 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
500 | |
501 // create result type (range) | |
502 fields = TypeTuple::fields(1); | |
503 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
504 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
505 | |
506 return TypeFunc::make(domain, range); | |
507 } | |
508 | |
509 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
510 return multianewarray_Type(2); | |
511 } | |
512 | |
513 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
514 return multianewarray_Type(3); | |
515 } | |
516 | |
517 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
518 return multianewarray_Type(4); | |
519 } | |
520 | |
521 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
522 return multianewarray_Type(5); | |
523 } | |
524 | |
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525 const TypeFunc *OptoRuntime::multianewarrayN_Type() { |
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526 // create input type (domain) |
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527 const Type **fields = TypeTuple::fields(2); |
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528 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass |
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529 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // array of dim sizes |
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530 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
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531 |
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532 // create result type (range) |
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533 fields = TypeTuple::fields(1); |
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534 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
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535 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
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536 |
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537 return TypeFunc::make(domain, range); |
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538 } |
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539 |
342 | 540 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
541 const Type **fields = TypeTuple::fields(2); | |
542 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
543 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
544 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
545 | |
546 // create result type (range) | |
547 fields = TypeTuple::fields(0); | |
548 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
549 | |
550 return TypeFunc::make(domain, range); | |
551 } | |
552 | |
553 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
554 | |
555 const Type **fields = TypeTuple::fields(2); | |
556 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
557 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
558 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
559 | |
560 // create result type (range) | |
561 fields = TypeTuple::fields(0); | |
562 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
563 | |
564 return TypeFunc::make(domain, range); | |
565 } | |
566 | |
0 | 567 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
568 // create input type (domain) | |
569 const Type **fields = TypeTuple::fields(1); | |
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570 // Symbol* name of class to be loaded |
0 | 571 fields[TypeFunc::Parms+0] = TypeInt::INT; |
572 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
573 | |
574 // create result type (range) | |
575 fields = TypeTuple::fields(0); | |
576 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
577 | |
578 return TypeFunc::make(domain, range); | |
579 } | |
580 | |
581 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
582 // Type used for stub generation for zap_dead_locals. | |
583 // No inputs or outputs | |
584 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
585 // create input type (domain) | |
586 const Type **fields = TypeTuple::fields(0); | |
587 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
588 | |
589 // create result type (range) | |
590 fields = TypeTuple::fields(0); | |
591 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
592 | |
593 return TypeFunc::make(domain,range); | |
594 } | |
595 # endif | |
596 | |
597 | |
598 //----------------------------------------------------------------------------- | |
599 // Monitor Handling | |
600 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
601 // create input type (domain) | |
602 const Type **fields = TypeTuple::fields(2); | |
603 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
604 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
605 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
606 | |
607 // create result type (range) | |
608 fields = TypeTuple::fields(0); | |
609 | |
610 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
611 | |
612 return TypeFunc::make(domain,range); | |
613 } | |
614 | |
615 | |
616 //----------------------------------------------------------------------------- | |
617 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
618 // create input type (domain) | |
619 const Type **fields = TypeTuple::fields(2); | |
620 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
621 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
622 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
623 | |
624 // create result type (range) | |
625 fields = TypeTuple::fields(0); | |
626 | |
627 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
628 | |
629 return TypeFunc::make(domain,range); | |
630 } | |
631 | |
632 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
633 // create input type (domain) | |
634 const Type** fields = TypeTuple::fields(1); | |
635 fields[TypeFunc::Parms+0] = NULL; // void | |
636 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
637 | |
638 // create result type | |
639 fields = TypeTuple::fields(1); | |
640 fields[TypeFunc::Parms+0] = NULL; // void | |
641 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
642 | |
643 return TypeFunc::make(domain, range); | |
644 } | |
645 | |
646 const TypeFunc* OptoRuntime::l2f_Type() { | |
647 // create input type (domain) | |
648 const Type **fields = TypeTuple::fields(2); | |
649 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
650 fields[TypeFunc::Parms+1] = Type::HALF; | |
651 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
652 | |
653 // create result type (range) | |
654 fields = TypeTuple::fields(1); | |
655 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
656 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
657 | |
658 return TypeFunc::make(domain, range); | |
659 } | |
660 | |
661 const TypeFunc* OptoRuntime::modf_Type() { | |
662 const Type **fields = TypeTuple::fields(2); | |
663 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
664 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
665 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
666 | |
667 // create result type (range) | |
668 fields = TypeTuple::fields(1); | |
669 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
670 | |
671 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
672 | |
673 return TypeFunc::make(domain, range); | |
674 } | |
675 | |
676 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
677 // create input type (domain) | |
678 const Type **fields = TypeTuple::fields(2); | |
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679 // Symbol* name of class to be loaded |
0 | 680 fields[TypeFunc::Parms+0] = Type::DOUBLE; |
681 fields[TypeFunc::Parms+1] = Type::HALF; | |
682 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
683 | |
684 // create result type (range) | |
685 fields = TypeTuple::fields(2); | |
686 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
687 fields[TypeFunc::Parms+1] = Type::HALF; | |
688 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
689 | |
690 return TypeFunc::make(domain, range); | |
691 } | |
692 | |
693 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
694 const Type **fields = TypeTuple::fields(4); | |
695 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
696 fields[TypeFunc::Parms+1] = Type::HALF; | |
697 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
698 fields[TypeFunc::Parms+3] = Type::HALF; | |
699 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
700 | |
701 // create result type (range) | |
702 fields = TypeTuple::fields(2); | |
703 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
704 fields[TypeFunc::Parms+1] = Type::HALF; | |
705 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
706 | |
707 return TypeFunc::make(domain, range); | |
708 } | |
709 | |
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710 //-------------- currentTimeMillis, currentTimeNanos, etc |
0 | 711 |
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712 const TypeFunc* OptoRuntime::void_long_Type() { |
0 | 713 // create input type (domain) |
714 const Type **fields = TypeTuple::fields(0); | |
715 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
716 | |
717 // create result type (range) | |
718 fields = TypeTuple::fields(2); | |
719 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
720 fields[TypeFunc::Parms+1] = Type::HALF; | |
721 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
722 | |
723 return TypeFunc::make(domain, range); | |
724 } | |
725 | |
726 // arraycopy stub variations: | |
727 enum ArrayCopyType { | |
728 ac_fast, // void(ptr, ptr, size_t) | |
729 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
730 ac_slow, // void(ptr, int, ptr, int, int) | |
731 ac_generic // int(ptr, int, ptr, int, int) | |
732 }; | |
733 | |
734 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
735 // create input type (domain) | |
736 int num_args = (act == ac_fast ? 3 : 5); | |
737 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
738 int argcnt = num_args; | |
739 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
740 const Type** fields = TypeTuple::fields(argcnt); | |
741 int argp = TypeFunc::Parms; | |
742 fields[argp++] = TypePtr::NOTNULL; // src | |
743 if (num_size_args == 0) { | |
744 fields[argp++] = TypeInt::INT; // src_pos | |
745 } | |
746 fields[argp++] = TypePtr::NOTNULL; // dest | |
747 if (num_size_args == 0) { | |
748 fields[argp++] = TypeInt::INT; // dest_pos | |
749 fields[argp++] = TypeInt::INT; // length | |
750 } | |
751 while (num_size_args-- > 0) { | |
752 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
753 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
754 } | |
755 if (act == ac_checkcast) { | |
756 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
757 } | |
758 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
759 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
760 | |
761 // create result type if needed | |
762 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
763 fields = TypeTuple::fields(1); | |
764 if (retcnt == 0) | |
765 fields[TypeFunc::Parms+0] = NULL; // void | |
766 else | |
767 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
768 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
769 return TypeFunc::make(domain, range); | |
770 } | |
771 | |
772 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
773 // This signature is simple: Two base pointers and a size_t. | |
774 return make_arraycopy_Type(ac_fast); | |
775 } | |
776 | |
777 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
778 // An extension of fast_arraycopy_Type which adds type checking. | |
779 return make_arraycopy_Type(ac_checkcast); | |
780 } | |
781 | |
782 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
783 // This signature is exactly the same as System.arraycopy. | |
784 // There are no intptr_t (int/long) arguments. | |
785 return make_arraycopy_Type(ac_slow); | |
786 } | |
787 | |
788 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
789 // This signature is like System.arraycopy, except that it returns status. | |
790 return make_arraycopy_Type(ac_generic); | |
791 } | |
792 | |
793 | |
1763 | 794 const TypeFunc* OptoRuntime::array_fill_Type() { |
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795 // create input type (domain): pointer, int, size_t |
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796 const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1)); |
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797 int argp = TypeFunc::Parms; |
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798 fields[argp++] = TypePtr::NOTNULL; |
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799 fields[argp++] = TypeInt::INT; |
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800 fields[argp++] = TypeX_X; // size in whatevers (size_t) |
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801 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
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802 const TypeTuple *domain = TypeTuple::make(argp, fields); |
1763 | 803 |
804 // create result type | |
805 fields = TypeTuple::fields(1); | |
806 fields[TypeFunc::Parms+0] = NULL; // void | |
807 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
808 | |
809 return TypeFunc::make(domain, range); | |
810 } | |
811 | |
6894 | 812 // for aescrypt encrypt/decrypt operations, just three pointers returning void (length is constant) |
813 const TypeFunc* OptoRuntime::aescrypt_block_Type() { | |
814 // create input type (domain) | |
815 int num_args = 3; | |
816 int argcnt = num_args; | |
817 const Type** fields = TypeTuple::fields(argcnt); | |
818 int argp = TypeFunc::Parms; | |
819 fields[argp++] = TypePtr::NOTNULL; // src | |
820 fields[argp++] = TypePtr::NOTNULL; // dest | |
821 fields[argp++] = TypePtr::NOTNULL; // k array | |
822 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); | |
823 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
824 | |
825 // no result type needed | |
826 fields = TypeTuple::fields(1); | |
827 fields[TypeFunc::Parms+0] = NULL; // void | |
828 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); | |
829 return TypeFunc::make(domain, range); | |
830 } | |
831 | |
832 // for cipherBlockChaining calls of aescrypt encrypt/decrypt, four pointers and a length, returning void | |
833 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() { | |
834 // create input type (domain) | |
835 int num_args = 5; | |
836 int argcnt = num_args; | |
837 const Type** fields = TypeTuple::fields(argcnt); | |
838 int argp = TypeFunc::Parms; | |
839 fields[argp++] = TypePtr::NOTNULL; // src | |
840 fields[argp++] = TypePtr::NOTNULL; // dest | |
841 fields[argp++] = TypePtr::NOTNULL; // k array | |
842 fields[argp++] = TypePtr::NOTNULL; // r array | |
843 fields[argp++] = TypeInt::INT; // src len | |
844 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); | |
845 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
846 | |
847 // no result type needed | |
848 fields = TypeTuple::fields(1); | |
849 fields[TypeFunc::Parms+0] = NULL; // void | |
850 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); | |
851 return TypeFunc::make(domain, range); | |
852 } | |
853 | |
0 | 854 //------------- Interpreter state access for on stack replacement |
855 const TypeFunc* OptoRuntime::osr_end_Type() { | |
856 // create input type (domain) | |
857 const Type **fields = TypeTuple::fields(1); | |
858 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
859 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
860 | |
861 // create result type | |
862 fields = TypeTuple::fields(1); | |
863 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
864 fields[TypeFunc::Parms+0] = NULL; // void | |
865 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
866 return TypeFunc::make(domain, range); | |
867 } | |
868 | |
869 //-------------- methodData update helpers | |
870 | |
871 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
872 // create input type (domain) | |
873 const Type **fields = TypeTuple::fields(2); | |
874 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
875 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
876 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
877 | |
878 // create result type | |
879 fields = TypeTuple::fields(1); | |
880 fields[TypeFunc::Parms+0] = NULL; // void | |
881 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
882 return TypeFunc::make(domain,range); | |
883 } | |
884 | |
885 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
886 if (receiver == NULL) return; | |
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887 Klass* receiver_klass = receiver->klass(); |
0 | 888 |
889 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
890 int empty_row = -1; // free row, if any is encountered | |
891 | |
892 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
893 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
894 // if (vc->receiver(row) == receiver_klass) | |
895 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
896 intptr_t row_recv = *(mdp + receiver_off); | |
897 if (row_recv == (intptr_t) receiver_klass) { | |
898 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
899 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
900 *(mdp + count_off) += DataLayout::counter_increment; | |
901 return; | |
902 } else if (row_recv == 0) { | |
903 // else if (vc->receiver(row) == NULL) | |
904 empty_row = (int) row; | |
905 } | |
906 } | |
907 | |
908 if (empty_row != -1) { | |
909 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
910 // vc->set_receiver(empty_row, receiver_klass); | |
911 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
912 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
913 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
914 *(mdp + count_off) = DataLayout::counter_increment; | |
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915 } else { |
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916 // Receiver did not match any saved receiver and there is no empty row for it. |
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917 // Increment total counter to indicate polymorphic case. |
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918 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); |
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919 *count_p += DataLayout::counter_increment; |
0 | 920 } |
921 JRT_END | |
922 | |
923 //------------------------------------------------------------------------------------- | |
924 // register policy | |
925 | |
926 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
927 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
928 switch (register_save_policy[reg]) { | |
929 case 'C': return false; //SOC | |
930 case 'E': return true ; //SOE | |
931 case 'N': return false; //NS | |
932 case 'A': return false; //AS | |
933 } | |
934 ShouldNotReachHere(); | |
935 return false; | |
936 } | |
937 | |
938 //----------------------------------------------------------------------- | |
939 // Exceptions | |
940 // | |
941 | |
942 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
943 | |
944 // The method is an entry that is always called by a C++ method not | |
945 // directly from compiled code. Compiled code will call the C++ method following. | |
946 // We can't allow async exception to be installed during exception processing. | |
947 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
948 | |
949 // Do not confuse exception_oop with pending_exception. The exception_oop | |
950 // is only used to pass arguments into the method. Not for general | |
951 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
952 // the runtime stubs checks this on exit. | |
953 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
954 address handler_address = NULL; | |
955 | |
956 Handle exception(thread, thread->exception_oop()); | |
957 | |
958 if (TraceExceptions) { | |
959 trace_exception(exception(), thread->exception_pc(), ""); | |
960 } | |
961 // for AbortVMOnException flag | |
962 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
963 | |
964 #ifdef ASSERT | |
1142 | 965 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 966 // should throw an exception here |
967 ShouldNotReachHere(); | |
968 } | |
969 #endif | |
970 | |
971 | |
972 // new exception handling: this method is entered only from adapters | |
973 // exceptions from compiled java methods are handled in compiled code | |
974 // using rethrow node | |
975 | |
976 address pc = thread->exception_pc(); | |
977 nm = CodeCache::find_nmethod(pc); | |
978 assert(nm != NULL, "No NMethod found"); | |
979 if (nm->is_native_method()) { | |
980 fatal("Native mathod should not have path to exception handling"); | |
981 } else { | |
982 // we are switching to old paradigm: search for exception handler in caller_frame | |
983 // instead in exception handler of caller_frame.sender() | |
984 | |
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985 if (JvmtiExport::can_post_on_exceptions()) { |
0 | 986 // "Full-speed catching" is not necessary here, |
987 // since we're notifying the VM on every catch. | |
988 // Force deoptimization and the rest of the lookup | |
989 // will be fine. | |
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990 deoptimize_caller_frame(thread); |
0 | 991 } |
992 | |
993 // Check the stack guard pages. If enabled, look for handler in this frame; | |
994 // otherwise, forcibly unwind the frame. | |
995 // | |
996 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
997 bool force_unwind = !thread->reguard_stack(); | |
998 bool deopting = false; | |
999 if (nm->is_deopt_pc(pc)) { | |
1000 deopting = true; | |
1001 RegisterMap map(thread, false); | |
1002 frame deoptee = thread->last_frame().sender(&map); | |
1003 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
1004 // Adjust the pc back to the original throwing pc | |
1005 pc = deoptee.pc(); | |
1006 } | |
1007 | |
1008 // If we are forcing an unwind because of stack overflow then deopt is | |
1009 // irrelevant sice we are throwing the frame away anyway. | |
1010 | |
1011 if (deopting && !force_unwind) { | |
1012 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
1013 } else { | |
1014 | |
1015 handler_address = | |
1016 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
1017 | |
1018 if (handler_address == NULL) { | |
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1019 Handle original_exception(thread, exception()); |
0 | 1020 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); |
1021 assert (handler_address != NULL, "must have compiled handler"); | |
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1022 // Update the exception cache only when the unwind was not forced |
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1023 // and there didn't happen another exception during the computation of the |
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1024 // compiled exception handler. |
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1025 if (!force_unwind && original_exception() == exception()) { |
0 | 1026 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); |
1027 } | |
1028 } else { | |
1029 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
1030 } | |
1031 } | |
1032 | |
1033 thread->set_exception_pc(pc); | |
1034 thread->set_exception_handler_pc(handler_address); | |
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1035 |
1295 | 1036 // Check if the exception PC is a MethodHandle call site. |
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1037 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); |
0 | 1038 } |
1039 | |
1040 // Restore correct return pc. Was saved above. | |
1041 thread->set_exception_oop(exception()); | |
1042 return handler_address; | |
1043 | |
1044 JRT_END | |
1045 | |
1046 // We are entering here from exception_blob | |
1047 // If there is a compiled exception handler in this method, we will continue there; | |
1048 // otherwise we will unwind the stack and continue at the caller of top frame method | |
1049 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
1050 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
1051 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
1052 // we must not use the handler and instread return the deopt blob. | |
1053 address OptoRuntime::handle_exception_C(JavaThread* thread) { | |
1054 // | |
1055 // We are in Java not VM and in debug mode we have a NoHandleMark | |
1056 // | |
1057 #ifndef PRODUCT | |
1058 SharedRuntime::_find_handler_ctr++; // find exception handler | |
1059 #endif | |
1060 debug_only(NoHandleMark __hm;) | |
1061 nmethod* nm = NULL; | |
1062 address handler_address = NULL; | |
1063 { | |
1064 // Enter the VM | |
1065 | |
1066 ResetNoHandleMark rnhm; | |
1067 handler_address = handle_exception_C_helper(thread, nm); | |
1068 } | |
1069 | |
1070 // Back in java: Use no oops, DON'T safepoint | |
1071 | |
1072 // Now check to see if the handler we are returning is in a now | |
1073 // deoptimized frame | |
1074 | |
1075 if (nm != NULL) { | |
1076 RegisterMap map(thread, false); | |
1077 frame caller = thread->last_frame().sender(&map); | |
1078 #ifdef ASSERT | |
1079 assert(caller.is_compiled_frame(), "must be"); | |
1080 #endif // ASSERT | |
1081 if (caller.is_deoptimized_frame()) { | |
1082 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
1083 } | |
1084 } | |
1085 return handler_address; | |
1086 } | |
1087 | |
1088 //------------------------------rethrow---------------------------------------- | |
1089 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
1090 // is either throwing or rethrowing an exception. The callee-save registers | |
1091 // have been restored, synchronized objects have been unlocked and the callee | |
1092 // stack frame has been removed. The return address was passed in. | |
1093 // Exception oop is passed as the 1st argument. This routine is then called | |
1094 // from the stub. On exit, we know where to jump in the caller's code. | |
1095 // After this C code exits, the stub will pop his frame and end in a jump | |
1096 // (instead of a return). We enter the caller's default handler. | |
1097 // | |
1098 // This must be JRT_LEAF: | |
1099 // - caller will not change its state as we cannot block on exit, | |
1100 // therefore raw_exception_handler_for_return_address is all it takes | |
1101 // to handle deoptimized blobs | |
1102 // | |
1103 // However, there needs to be a safepoint check in the middle! So compiled | |
1104 // safepoints are completely watertight. | |
1105 // | |
1106 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
1107 // | |
1108 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
1109 // | |
1110 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
1111 #ifndef PRODUCT | |
1112 SharedRuntime::_rethrow_ctr++; // count rethrows | |
1113 #endif | |
1114 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
1115 #ifdef ASSERT | |
1142 | 1116 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 1117 // should throw an exception here |
1118 ShouldNotReachHere(); | |
1119 } | |
1120 #endif | |
1121 | |
1122 thread->set_vm_result(exception); | |
1123 // Frame not compiled (handles deoptimization blob) | |
1295 | 1124 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); |
0 | 1125 } |
1126 | |
1127 | |
1128 const TypeFunc *OptoRuntime::rethrow_Type() { | |
1129 // create input type (domain) | |
1130 const Type **fields = TypeTuple::fields(1); | |
1131 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1132 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1133 | |
1134 // create result type (range) | |
1135 fields = TypeTuple::fields(1); | |
1136 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1137 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
1138 | |
1139 return TypeFunc::make(domain, range); | |
1140 } | |
1141 | |
1142 | |
1143 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
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1144 // Deoptimize the caller before continuing, as the compiled |
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1145 // exception handler table may not be valid. |
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1146 if (!StressCompiledExceptionHandlers && doit) { |
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1147 deoptimize_caller_frame(thread); |
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1148 } |
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1149 } |
0 | 1150 |
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1151 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) { |
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1152 // Called from within the owner thread, so no need for safepoint |
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1153 RegisterMap reg_map(thread); |
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1154 frame stub_frame = thread->last_frame(); |
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1155 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); |
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1156 frame caller_frame = stub_frame.sender(®_map); |
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1157 |
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1158 // Deoptimize the caller frame. |
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1159 Deoptimization::deoptimize_frame(thread, caller_frame.id(), Deoptimization::Reason_constraint); |
0 | 1160 } |
1161 | |
1162 | |
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1163 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) { |
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1164 // Called from within the owner thread, so no need for safepoint |
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1165 RegisterMap reg_map(thread); |
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1166 frame stub_frame = thread->last_frame(); |
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1167 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); |
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1168 frame caller_frame = stub_frame.sender(®_map); |
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1169 return caller_frame.is_deoptimized_frame(); |
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1170 } |
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1171 |
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1172 |
0 | 1173 const TypeFunc *OptoRuntime::register_finalizer_Type() { |
1174 // create input type (domain) | |
1175 const Type **fields = TypeTuple::fields(1); | |
1176 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
1177 // // The JavaThread* is passed to each routine as the last argument | |
1178 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
1179 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1180 | |
1181 // create result type (range) | |
1182 fields = TypeTuple::fields(0); | |
1183 | |
1184 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1185 | |
1186 return TypeFunc::make(domain,range); | |
1187 } | |
1188 | |
1189 | |
1190 //----------------------------------------------------------------------------- | |
1191 // Dtrace support. entry and exit probes have the same signature | |
1192 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
1193 // create input type (domain) | |
1194 const Type **fields = TypeTuple::fields(2); | |
1195 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
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1196 fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM; // Method*; Method we are entering |
0 | 1197 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
1198 | |
1199 // create result type (range) | |
1200 fields = TypeTuple::fields(0); | |
1201 | |
1202 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1203 | |
1204 return TypeFunc::make(domain,range); | |
1205 } | |
1206 | |
1207 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
1208 // create input type (domain) | |
1209 const Type **fields = TypeTuple::fields(2); | |
1210 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1211 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
1212 | |
1213 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1214 | |
1215 // create result type (range) | |
1216 fields = TypeTuple::fields(0); | |
1217 | |
1218 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1219 | |
1220 return TypeFunc::make(domain,range); | |
1221 } | |
1222 | |
1223 | |
1224 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
1225 assert(obj->is_oop(), "must be a valid oop"); | |
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1226 assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise"); |
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1227 InstanceKlass::register_finalizer(instanceOop(obj), CHECK); |
0 | 1228 JRT_END |
1229 | |
1230 //----------------------------------------------------------------------------- | |
1231 | |
1232 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
1233 | |
1234 // | |
1235 // dump the collected NamedCounters. | |
1236 // | |
1237 void OptoRuntime::print_named_counters() { | |
1238 int total_lock_count = 0; | |
1239 int eliminated_lock_count = 0; | |
1240 | |
1241 NamedCounter* c = _named_counters; | |
1242 while (c) { | |
1243 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
1244 int count = c->count(); | |
1245 if (count > 0) { | |
1246 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
1247 if (Verbose) { | |
1248 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
1249 } | |
1250 total_lock_count += count; | |
1251 if (eliminated) { | |
1252 eliminated_lock_count += count; | |
1253 } | |
1254 } | |
1255 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
1256 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
1257 if (blc->nonzero()) { | |
1258 tty->print_cr("%s", c->name()); | |
1259 blc->print_on(tty); | |
1260 } | |
1261 } | |
1262 c = c->next(); | |
1263 } | |
1264 if (total_lock_count > 0) { | |
1265 tty->print_cr("dynamic locks: %d", total_lock_count); | |
1266 if (eliminated_lock_count) { | |
1267 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
1268 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
1269 } | |
1270 } | |
1271 } | |
1272 | |
1273 // | |
1274 // Allocate a new NamedCounter. The JVMState is used to generate the | |
1275 // name which consists of method@line for the inlining tree. | |
1276 // | |
1277 | |
1278 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
1279 int max_depth = youngest_jvms->depth(); | |
1280 | |
1281 // Visit scopes from youngest to oldest. | |
1282 bool first = true; | |
1283 stringStream st; | |
1284 for (int depth = max_depth; depth >= 1; depth--) { | |
1285 JVMState* jvms = youngest_jvms->of_depth(depth); | |
1286 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
1287 if (!first) { | |
1288 st.print(" "); | |
1289 } else { | |
1290 first = false; | |
1291 } | |
1292 int bci = jvms->bci(); | |
1293 if (bci < 0) bci = 0; | |
1294 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
1295 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
1296 } | |
1297 NamedCounter* c; | |
1298 if (tag == NamedCounter::BiasedLockingCounter) { | |
1299 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
1300 } else { | |
1301 c = new NamedCounter(strdup(st.as_string()), tag); | |
1302 } | |
1303 | |
1304 // atomically add the new counter to the head of the list. We only | |
1305 // add counters so this is safe. | |
1306 NamedCounter* head; | |
1307 do { | |
1308 head = _named_counters; | |
1309 c->set_next(head); | |
1310 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
1311 return c; | |
1312 } | |
1313 | |
1314 //----------------------------------------------------------------------------- | |
1315 // Non-product code | |
1316 #ifndef PRODUCT | |
1317 | |
1318 int trace_exception_counter = 0; | |
1319 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
1320 ttyLocker ttyl; | |
1321 trace_exception_counter++; | |
1322 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
1323 exception_oop->print_value(); | |
1324 tty->print(" in "); | |
1325 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
1326 if (blob->is_nmethod()) { | |
1327 ((nmethod*)blob)->method()->print_value(); | |
1328 } else if (blob->is_runtime_stub()) { | |
1329 tty->print("<runtime-stub>"); | |
1330 } else { | |
1331 tty->print("<unknown>"); | |
1332 } | |
1333 tty->print(" at " INTPTR_FORMAT, exception_pc); | |
1334 tty->print_cr("]"); | |
1335 } | |
1336 | |
1337 #endif // PRODUCT | |
1338 | |
1339 | |
1340 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1341 // Called from call sites in compiled code with oop maps (actually safepoints) | |
1342 // Zaps dead locals in first java frame. | |
1343 // Is entry because may need to lock to generate oop maps | |
1344 // Currently, only used for compiler frames, but someday may be used | |
1345 // for interpreter frames, too. | |
1346 | |
1347 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
1348 | |
1349 // avoid pointers to member funcs with these helpers | |
1350 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
1351 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
1352 | |
1353 | |
1354 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
1355 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
1356 assert(JavaThread::current() == thread, "is this needed?"); | |
1357 | |
1358 if ( !ZapDeadCompiledLocals ) return; | |
1359 | |
1360 bool skip = false; | |
1361 | |
1362 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
1363 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
1364 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
1365 warning("starting zapping after skipping"); | |
1366 | |
1367 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
1368 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
1369 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
1370 warning("about to zap last zap"); | |
1371 | |
1372 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
1373 | |
1374 if ( skip ) return; | |
1375 | |
1376 // find java frame and zap it | |
1377 | |
1378 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
1379 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
1380 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
1381 return; | |
1382 } | |
1383 } | |
1384 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
1385 } | |
1386 | |
1387 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
1388 zap_dead_java_or_native_locals(thread, is_java_frame); | |
1389 JRT_END | |
1390 | |
1391 // The following does not work because for one thing, the | |
1392 // thread state is wrong; it expects java, but it is native. | |
605 | 1393 // Also, the invariants in a native stub are different and |
0 | 1394 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
1395 // in there. | |
1396 // So for now, we do not zap in native stubs. | |
1397 | |
1398 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
1399 zap_dead_java_or_native_locals(thread, is_native_frame); | |
1400 JRT_END | |
1401 | |
1402 # endif |