Mercurial > hg > graal-compiler
annotate src/share/vm/opto/runtime.cpp @ 21814:5f07d936a14e
8058982: Better verification of an exceptional invokespecial
Summary: Throw VerifyError for illegal accesses
Reviewed-by: acorn, ahgross, coleenp
author | hseigel |
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date | Mon, 20 Oct 2014 15:14:56 -0400 |
parents | 78bbf4d43a14 |
children | 52b4284cb496 b20a35eae442 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2014, 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 |
14391 | 86 #ifdef TARGET_ARCH_MODEL_ppc_32 |
87 # include "adfiles/ad_ppc_32.hpp" | |
88 #endif | |
89 #ifdef TARGET_ARCH_MODEL_ppc_64 | |
90 # include "adfiles/ad_ppc_64.hpp" | |
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91 #endif |
0 | 92 |
93 | |
94 // For debugging purposes: | |
95 // To force FullGCALot inside a runtime function, add the following two lines | |
96 // | |
97 // Universe::release_fullgc_alot_dummy(); | |
98 // MarkSweep::invoke(0, "Debugging"); | |
99 // | |
100 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 | |
101 | |
102 | |
103 | |
104 | |
105 // Compiled code entry points | |
106 address OptoRuntime::_new_instance_Java = NULL; | |
107 address OptoRuntime::_new_array_Java = NULL; | |
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108 address OptoRuntime::_new_array_nozero_Java = NULL; |
0 | 109 address OptoRuntime::_multianewarray2_Java = NULL; |
110 address OptoRuntime::_multianewarray3_Java = NULL; | |
111 address OptoRuntime::_multianewarray4_Java = NULL; | |
112 address OptoRuntime::_multianewarray5_Java = NULL; | |
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113 address OptoRuntime::_multianewarrayN_Java = NULL; |
342 | 114 address OptoRuntime::_g1_wb_pre_Java = NULL; |
115 address OptoRuntime::_g1_wb_post_Java = NULL; | |
0 | 116 address OptoRuntime::_vtable_must_compile_Java = NULL; |
117 address OptoRuntime::_complete_monitor_locking_Java = NULL; | |
118 address OptoRuntime::_rethrow_Java = NULL; | |
119 | |
120 address OptoRuntime::_slow_arraycopy_Java = NULL; | |
121 address OptoRuntime::_register_finalizer_Java = NULL; | |
122 | |
123 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
124 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; | |
125 address OptoRuntime::_zap_dead_native_locals_Java = NULL; | |
126 # endif | |
127 | |
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128 ExceptionBlob* OptoRuntime::_exception_blob; |
0 | 129 |
130 // This should be called in an assertion at the start of OptoRuntime routines | |
131 // which are entered from compiled code (all of them) | |
10274 | 132 #ifdef ASSERT |
0 | 133 static bool check_compiled_frame(JavaThread* thread) { |
134 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
135 RegisterMap map(thread, false); | |
136 frame caller = thread->last_frame().sender(&map); | |
137 assert(caller.is_compiled_frame(), "not being called from compiled like code"); | |
138 return true; | |
139 } | |
10274 | 140 #endif // ASSERT |
0 | 141 |
142 | |
143 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ | |
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144 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc); \ |
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145 if (var == NULL) { return false; } |
0 | 146 |
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147 bool OptoRuntime::generate(ciEnv* env) { |
0 | 148 |
149 generate_exception_blob(); | |
150 | |
151 // Note: tls: Means fetching the return oop out of the thread-local storage | |
152 // | |
153 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc | |
154 // ------------------------------------------------------------------------------------------------------------------------------- | |
155 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); | |
156 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); | |
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157 gen(env, _new_array_nozero_Java , new_array_Type , new_array_nozero_C , 0 , true , false, false); |
0 | 158 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); |
159 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); | |
160 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); | |
161 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); | |
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162 gen(env, _multianewarrayN_Java , multianewarrayN_Type , multianewarrayN_C , 0 , true , false, false); |
342 | 163 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
164 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); | |
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165 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C, 0, false, false, false); |
0 | 166 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); |
167 | |
168 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); | |
169 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); | |
170 | |
171 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
172 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); | |
173 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); | |
174 # endif | |
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175 return true; |
0 | 176 } |
177 | |
178 #undef gen | |
179 | |
180 | |
181 // Helper method to do generation of RunTimeStub's | |
182 address OptoRuntime::generate_stub( ciEnv* env, | |
183 TypeFunc_generator gen, address C_function, | |
184 const char *name, int is_fancy_jump, | |
185 bool pass_tls, | |
186 bool save_argument_registers, | |
187 bool return_pc ) { | |
188 ResourceMark rm; | |
189 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); | |
190 return C.stub_entry_point(); | |
191 } | |
192 | |
193 const char* OptoRuntime::stub_name(address entry) { | |
194 #ifndef PRODUCT | |
195 CodeBlob* cb = CodeCache::find_blob(entry); | |
196 RuntimeStub* rs =(RuntimeStub *)cb; | |
197 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); | |
198 return rs->name(); | |
199 #else | |
200 // Fast implementation for product mode (maybe it should be inlined too) | |
201 return "runtime stub"; | |
202 #endif | |
203 } | |
204 | |
205 | |
206 //============================================================================= | |
207 // Opto compiler runtime routines | |
208 //============================================================================= | |
209 | |
210 | |
211 //=============================allocation====================================== | |
212 // We failed the fast-path allocation. Now we need to do a scavenge or GC | |
213 // and try allocation again. | |
214 | |
1166 | 215 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { |
0 | 216 // After any safepoint, just before going back to compiled code, |
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217 // we inform the GC that we will be doing initializing writes to |
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218 // this object in the future without emitting card-marks, so |
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219 // GC may take any compensating steps. |
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220 // NOTE: Keep this code consistent with GraphKit::store_barrier. |
0 | 221 |
222 oop new_obj = thread->vm_result(); | |
223 if (new_obj == NULL) return; | |
224 | |
225 assert(Universe::heap()->can_elide_tlab_store_barriers(), | |
226 "compiler must check this first"); | |
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227 // GC may decide to give back a safer copy of new_obj. |
1166 | 228 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); |
0 | 229 thread->set_vm_result(new_obj); |
230 } | |
231 | |
232 // object allocation | |
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233 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(Klass* klass, JavaThread* thread)) |
0 | 234 JRT_BLOCK; |
235 #ifndef PRODUCT | |
236 SharedRuntime::_new_instance_ctr++; // new instance requires GC | |
237 #endif | |
238 assert(check_compiled_frame(thread), "incorrect caller"); | |
239 | |
240 // These checks are cheap to make and support reflective allocation. | |
6983 | 241 int lh = klass->layout_helper(); |
0 | 242 if (Klass::layout_helper_needs_slow_path(lh) |
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243 || !InstanceKlass::cast(klass)->is_initialized()) { |
0 | 244 KlassHandle kh(THREAD, klass); |
245 kh->check_valid_for_instantiation(false, THREAD); | |
246 if (!HAS_PENDING_EXCEPTION) { | |
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247 InstanceKlass::cast(kh())->initialize(THREAD); |
0 | 248 } |
249 if (!HAS_PENDING_EXCEPTION) { | |
250 klass = kh(); | |
251 } else { | |
252 klass = NULL; | |
253 } | |
254 } | |
255 | |
256 if (klass != NULL) { | |
257 // Scavenge and allocate an instance. | |
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258 oop result = InstanceKlass::cast(klass)->allocate_instance(THREAD); |
0 | 259 thread->set_vm_result(result); |
260 | |
261 // Pass oops back through thread local storage. Our apparent type to Java | |
262 // is that we return an oop, but we can block on exit from this routine and | |
263 // a GC can trash the oop in C's return register. The generated stub will | |
264 // fetch the oop from TLS after any possible GC. | |
265 } | |
266 | |
267 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
268 JRT_BLOCK_END; | |
269 | |
270 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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271 // inform GC that we won't do card marks for initializing writes. |
1166 | 272 new_store_pre_barrier(thread); |
0 | 273 } |
274 JRT_END | |
275 | |
276 | |
277 // array allocation | |
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278 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(Klass* array_type, int len, JavaThread *thread)) |
0 | 279 JRT_BLOCK; |
280 #ifndef PRODUCT | |
281 SharedRuntime::_new_array_ctr++; // new array requires GC | |
282 #endif | |
283 assert(check_compiled_frame(thread), "incorrect caller"); | |
284 | |
285 // Scavenge and allocate an instance. | |
286 oop result; | |
287 | |
6983 | 288 if (array_type->oop_is_typeArray()) { |
0 | 289 // The oopFactory likes to work with the element type. |
290 // (We could bypass the oopFactory, since it doesn't add much value.) | |
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291 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
0 | 292 result = oopFactory::new_typeArray(elem_type, len, THREAD); |
293 } else { | |
294 // Although the oopFactory likes to work with the elem_type, | |
295 // the compiler prefers the array_type, since it must already have | |
296 // that latter value in hand for the fast path. | |
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297 Klass* elem_type = ObjArrayKlass::cast(array_type)->element_klass(); |
0 | 298 result = oopFactory::new_objArray(elem_type, len, THREAD); |
299 } | |
300 | |
301 // Pass oops back through thread local storage. Our apparent type to Java | |
302 // is that we return an oop, but we can block on exit from this routine and | |
303 // a GC can trash the oop in C's return register. The generated stub will | |
304 // fetch the oop from TLS after any possible GC. | |
305 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
306 thread->set_vm_result(result); | |
307 JRT_BLOCK_END; | |
308 | |
309 if (GraphKit::use_ReduceInitialCardMarks()) { | |
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310 // inform GC that we won't do card marks for initializing writes. |
1166 | 311 new_store_pre_barrier(thread); |
0 | 312 } |
313 JRT_END | |
314 | |
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315 // array allocation without zeroing |
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316 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(Klass* array_type, int len, JavaThread *thread)) |
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317 JRT_BLOCK; |
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318 #ifndef PRODUCT |
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319 SharedRuntime::_new_array_ctr++; // new array requires GC |
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320 #endif |
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321 assert(check_compiled_frame(thread), "incorrect caller"); |
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322 |
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323 // Scavenge and allocate an instance. |
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324 oop result; |
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325 |
6983 | 326 assert(array_type->oop_is_typeArray(), "should be called only for type array"); |
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327 // The oopFactory likes to work with the element type. |
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328 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
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329 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD); |
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330 |
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331 // Pass oops back through thread local storage. Our apparent type to Java |
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332 // is that we return an oop, but we can block on exit from this routine and |
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333 // a GC can trash the oop in C's return register. The generated stub will |
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334 // fetch the oop from TLS after any possible GC. |
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335 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
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336 thread->set_vm_result(result); |
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337 JRT_BLOCK_END; |
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338 |
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339 if (GraphKit::use_ReduceInitialCardMarks()) { |
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340 // inform GC that we won't do card marks for initializing writes. |
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341 new_store_pre_barrier(thread); |
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342 } |
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343 |
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344 oop result = thread->vm_result(); |
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345 if ((len > 0) && (result != NULL) && |
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346 is_deoptimized_caller_frame(thread)) { |
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347 // Zero array here if the caller is deoptimized. |
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348 int size = ((typeArrayOop)result)->object_size(); |
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349 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); |
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350 const size_t hs = arrayOopDesc::header_size(elem_type); |
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351 // Align to next 8 bytes to avoid trashing arrays's length. |
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352 const size_t aligned_hs = align_object_offset(hs); |
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353 HeapWord* obj = (HeapWord*)result; |
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354 if (aligned_hs > hs) { |
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355 Copy::zero_to_words(obj+hs, aligned_hs-hs); |
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356 } |
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357 // Optimized zeroing. |
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358 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs); |
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359 } |
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360 |
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361 JRT_END |
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362 |
0 | 363 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. |
364 | |
365 // multianewarray for 2 dimensions | |
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366 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(Klass* elem_type, int len1, int len2, JavaThread *thread)) |
0 | 367 #ifndef PRODUCT |
368 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
369 #endif | |
370 assert(check_compiled_frame(thread), "incorrect caller"); | |
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371 assert(elem_type->is_klass(), "not a class"); |
0 | 372 jint dims[2]; |
373 dims[0] = len1; | |
374 dims[1] = len2; | |
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375 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); |
0 | 376 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
377 thread->set_vm_result(obj); | |
378 JRT_END | |
379 | |
380 // multianewarray for 3 dimensions | |
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381 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(Klass* elem_type, int len1, int len2, int len3, JavaThread *thread)) |
0 | 382 #ifndef PRODUCT |
383 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
384 #endif | |
385 assert(check_compiled_frame(thread), "incorrect caller"); | |
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386 assert(elem_type->is_klass(), "not a class"); |
0 | 387 jint dims[3]; |
388 dims[0] = len1; | |
389 dims[1] = len2; | |
390 dims[2] = len3; | |
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391 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); |
0 | 392 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
393 thread->set_vm_result(obj); | |
394 JRT_END | |
395 | |
396 // multianewarray for 4 dimensions | |
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397 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(Klass* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) |
0 | 398 #ifndef PRODUCT |
399 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
400 #endif | |
401 assert(check_compiled_frame(thread), "incorrect caller"); | |
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402 assert(elem_type->is_klass(), "not a class"); |
0 | 403 jint dims[4]; |
404 dims[0] = len1; | |
405 dims[1] = len2; | |
406 dims[2] = len3; | |
407 dims[3] = len4; | |
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408 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); |
0 | 409 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
410 thread->set_vm_result(obj); | |
411 JRT_END | |
412 | |
413 // multianewarray for 5 dimensions | |
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414 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(Klass* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) |
0 | 415 #ifndef PRODUCT |
416 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
417 #endif | |
418 assert(check_compiled_frame(thread), "incorrect caller"); | |
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419 assert(elem_type->is_klass(), "not a class"); |
0 | 420 jint dims[5]; |
421 dims[0] = len1; | |
422 dims[1] = len2; | |
423 dims[2] = len3; | |
424 dims[3] = len4; | |
425 dims[4] = len5; | |
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426 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); |
0 | 427 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
428 thread->set_vm_result(obj); | |
429 JRT_END | |
430 | |
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431 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(Klass* elem_type, arrayOopDesc* dims, JavaThread *thread)) |
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432 assert(check_compiled_frame(thread), "incorrect caller"); |
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433 assert(elem_type->is_klass(), "not a class"); |
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434 assert(oop(dims)->is_typeArray(), "not an array"); |
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435 |
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436 ResourceMark rm; |
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437 jint len = dims->length(); |
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438 assert(len > 0, "Dimensions array should contain data"); |
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439 jint *j_dims = typeArrayOop(dims)->int_at_addr(0); |
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440 jint *c_dims = NEW_RESOURCE_ARRAY(jint, len); |
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441 Copy::conjoint_jints_atomic(j_dims, c_dims, len); |
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442 |
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443 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD); |
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444 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
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445 thread->set_vm_result(obj); |
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446 JRT_END |
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447 |
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448 |
0 | 449 const TypeFunc *OptoRuntime::new_instance_Type() { |
450 // create input type (domain) | |
451 const Type **fields = TypeTuple::fields(1); | |
452 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
453 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
454 | |
455 // create result type (range) | |
456 fields = TypeTuple::fields(1); | |
457 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
458 | |
459 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
460 | |
461 return TypeFunc::make(domain, range); | |
462 } | |
463 | |
464 | |
465 const TypeFunc *OptoRuntime::athrow_Type() { | |
466 // create input type (domain) | |
467 const Type **fields = TypeTuple::fields(1); | |
468 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
469 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
470 | |
471 // create result type (range) | |
472 fields = TypeTuple::fields(0); | |
473 | |
474 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
475 | |
476 return TypeFunc::make(domain, range); | |
477 } | |
478 | |
479 | |
480 const TypeFunc *OptoRuntime::new_array_Type() { | |
481 // create input type (domain) | |
482 const Type **fields = TypeTuple::fields(2); | |
483 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
484 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
485 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
486 | |
487 // create result type (range) | |
488 fields = TypeTuple::fields(1); | |
489 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
490 | |
491 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
492 | |
493 return TypeFunc::make(domain, range); | |
494 } | |
495 | |
496 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
497 // create input type (domain) | |
498 const int nargs = ndim + 1; | |
499 const Type **fields = TypeTuple::fields(nargs); | |
500 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
501 for( int i = 1; i < nargs; i++ ) | |
502 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
503 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
504 | |
505 // create result type (range) | |
506 fields = TypeTuple::fields(1); | |
507 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
508 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
509 | |
510 return TypeFunc::make(domain, range); | |
511 } | |
512 | |
513 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
514 return multianewarray_Type(2); | |
515 } | |
516 | |
517 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
518 return multianewarray_Type(3); | |
519 } | |
520 | |
521 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
522 return multianewarray_Type(4); | |
523 } | |
524 | |
525 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
526 return multianewarray_Type(5); | |
527 } | |
528 | |
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529 const TypeFunc *OptoRuntime::multianewarrayN_Type() { |
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530 // create input type (domain) |
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531 const Type **fields = TypeTuple::fields(2); |
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532 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass |
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533 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // array of dim sizes |
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534 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
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535 |
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536 // create result type (range) |
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537 fields = TypeTuple::fields(1); |
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538 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
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539 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
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540 |
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541 return TypeFunc::make(domain, range); |
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542 } |
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543 |
342 | 544 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
545 const Type **fields = TypeTuple::fields(2); | |
546 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
547 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
548 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
549 | |
550 // create result type (range) | |
551 fields = TypeTuple::fields(0); | |
552 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
553 | |
554 return TypeFunc::make(domain, range); | |
555 } | |
556 | |
557 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
558 | |
559 const Type **fields = TypeTuple::fields(2); | |
560 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
561 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
562 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
563 | |
564 // create result type (range) | |
565 fields = TypeTuple::fields(0); | |
566 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
567 | |
568 return TypeFunc::make(domain, range); | |
569 } | |
570 | |
0 | 571 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
572 // create input type (domain) | |
573 const Type **fields = TypeTuple::fields(1); | |
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574 // Symbol* name of class to be loaded |
0 | 575 fields[TypeFunc::Parms+0] = TypeInt::INT; |
576 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
577 | |
578 // create result type (range) | |
579 fields = TypeTuple::fields(0); | |
580 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
581 | |
582 return TypeFunc::make(domain, range); | |
583 } | |
584 | |
585 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
586 // Type used for stub generation for zap_dead_locals. | |
587 // No inputs or outputs | |
588 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
589 // create input type (domain) | |
590 const Type **fields = TypeTuple::fields(0); | |
591 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
592 | |
593 // create result type (range) | |
594 fields = TypeTuple::fields(0); | |
595 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
596 | |
597 return TypeFunc::make(domain,range); | |
598 } | |
599 # endif | |
600 | |
601 | |
602 //----------------------------------------------------------------------------- | |
603 // Monitor Handling | |
604 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
605 // create input type (domain) | |
606 const Type **fields = TypeTuple::fields(2); | |
607 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
608 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
609 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
610 | |
611 // create result type (range) | |
612 fields = TypeTuple::fields(0); | |
613 | |
614 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
615 | |
616 return TypeFunc::make(domain,range); | |
617 } | |
618 | |
619 | |
620 //----------------------------------------------------------------------------- | |
621 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
622 // create input type (domain) | |
623 const Type **fields = TypeTuple::fields(2); | |
624 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
625 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
626 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
627 | |
628 // create result type (range) | |
629 fields = TypeTuple::fields(0); | |
630 | |
631 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
632 | |
633 return TypeFunc::make(domain,range); | |
634 } | |
635 | |
636 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
637 // create input type (domain) | |
638 const Type** fields = TypeTuple::fields(1); | |
639 fields[TypeFunc::Parms+0] = NULL; // void | |
640 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
641 | |
642 // create result type | |
643 fields = TypeTuple::fields(1); | |
644 fields[TypeFunc::Parms+0] = NULL; // void | |
645 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
646 | |
647 return TypeFunc::make(domain, range); | |
648 } | |
649 | |
650 const TypeFunc* OptoRuntime::l2f_Type() { | |
651 // create input type (domain) | |
652 const Type **fields = TypeTuple::fields(2); | |
653 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
654 fields[TypeFunc::Parms+1] = Type::HALF; | |
655 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
656 | |
657 // create result type (range) | |
658 fields = TypeTuple::fields(1); | |
659 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
660 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
661 | |
662 return TypeFunc::make(domain, range); | |
663 } | |
664 | |
665 const TypeFunc* OptoRuntime::modf_Type() { | |
666 const Type **fields = TypeTuple::fields(2); | |
667 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
668 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
669 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
670 | |
671 // create result type (range) | |
672 fields = TypeTuple::fields(1); | |
673 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
674 | |
675 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
676 | |
677 return TypeFunc::make(domain, range); | |
678 } | |
679 | |
680 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
681 // create input type (domain) | |
682 const Type **fields = TypeTuple::fields(2); | |
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683 // Symbol* name of class to be loaded |
0 | 684 fields[TypeFunc::Parms+0] = Type::DOUBLE; |
685 fields[TypeFunc::Parms+1] = Type::HALF; | |
686 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
687 | |
688 // create result type (range) | |
689 fields = TypeTuple::fields(2); | |
690 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
691 fields[TypeFunc::Parms+1] = Type::HALF; | |
692 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
693 | |
694 return TypeFunc::make(domain, range); | |
695 } | |
696 | |
697 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
698 const Type **fields = TypeTuple::fields(4); | |
699 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
700 fields[TypeFunc::Parms+1] = Type::HALF; | |
701 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
702 fields[TypeFunc::Parms+3] = Type::HALF; | |
703 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
704 | |
705 // create result type (range) | |
706 fields = TypeTuple::fields(2); | |
707 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
708 fields[TypeFunc::Parms+1] = Type::HALF; | |
709 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
710 | |
711 return TypeFunc::make(domain, range); | |
712 } | |
713 | |
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714 //-------------- currentTimeMillis, currentTimeNanos, etc |
0 | 715 |
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716 const TypeFunc* OptoRuntime::void_long_Type() { |
0 | 717 // create input type (domain) |
718 const Type **fields = TypeTuple::fields(0); | |
719 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
720 | |
721 // create result type (range) | |
722 fields = TypeTuple::fields(2); | |
723 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
724 fields[TypeFunc::Parms+1] = Type::HALF; | |
725 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
726 | |
727 return TypeFunc::make(domain, range); | |
728 } | |
729 | |
730 // arraycopy stub variations: | |
731 enum ArrayCopyType { | |
732 ac_fast, // void(ptr, ptr, size_t) | |
733 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
734 ac_slow, // void(ptr, int, ptr, int, int) | |
735 ac_generic // int(ptr, int, ptr, int, int) | |
736 }; | |
737 | |
738 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
739 // create input type (domain) | |
740 int num_args = (act == ac_fast ? 3 : 5); | |
741 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
742 int argcnt = num_args; | |
743 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
744 const Type** fields = TypeTuple::fields(argcnt); | |
745 int argp = TypeFunc::Parms; | |
746 fields[argp++] = TypePtr::NOTNULL; // src | |
747 if (num_size_args == 0) { | |
748 fields[argp++] = TypeInt::INT; // src_pos | |
749 } | |
750 fields[argp++] = TypePtr::NOTNULL; // dest | |
751 if (num_size_args == 0) { | |
752 fields[argp++] = TypeInt::INT; // dest_pos | |
753 fields[argp++] = TypeInt::INT; // length | |
754 } | |
755 while (num_size_args-- > 0) { | |
756 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
757 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
758 } | |
759 if (act == ac_checkcast) { | |
760 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
761 } | |
762 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
763 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
764 | |
765 // create result type if needed | |
766 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
767 fields = TypeTuple::fields(1); | |
768 if (retcnt == 0) | |
769 fields[TypeFunc::Parms+0] = NULL; // void | |
770 else | |
771 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
772 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
773 return TypeFunc::make(domain, range); | |
774 } | |
775 | |
776 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
777 // This signature is simple: Two base pointers and a size_t. | |
778 return make_arraycopy_Type(ac_fast); | |
779 } | |
780 | |
781 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
782 // An extension of fast_arraycopy_Type which adds type checking. | |
783 return make_arraycopy_Type(ac_checkcast); | |
784 } | |
785 | |
786 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
787 // This signature is exactly the same as System.arraycopy. | |
788 // There are no intptr_t (int/long) arguments. | |
789 return make_arraycopy_Type(ac_slow); | |
790 } | |
791 | |
792 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
793 // This signature is like System.arraycopy, except that it returns status. | |
794 return make_arraycopy_Type(ac_generic); | |
795 } | |
796 | |
797 | |
1763 | 798 const TypeFunc* OptoRuntime::array_fill_Type() { |
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799 const Type** fields; |
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800 int argp = TypeFunc::Parms; |
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801 if (CCallingConventionRequiresIntsAsLongs) { |
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802 // create input type (domain): pointer, int, size_t |
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803 fields = TypeTuple::fields(3 LP64_ONLY( + 2)); |
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804 fields[argp++] = TypePtr::NOTNULL; |
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805 fields[argp++] = TypeLong::LONG; |
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806 fields[argp++] = Type::HALF; |
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807 } else { |
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808 // create input type (domain): pointer, int, size_t |
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809 fields = TypeTuple::fields(3 LP64_ONLY( + 1)); |
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810 fields[argp++] = TypePtr::NOTNULL; |
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811 fields[argp++] = TypeInt::INT; |
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812 } |
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813 fields[argp++] = TypeX_X; // size in whatevers (size_t) |
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814 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
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815 const TypeTuple *domain = TypeTuple::make(argp, fields); |
1763 | 816 |
817 // create result type | |
818 fields = TypeTuple::fields(1); | |
819 fields[TypeFunc::Parms+0] = NULL; // void | |
820 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
821 | |
822 return TypeFunc::make(domain, range); | |
823 } | |
824 | |
6894 | 825 // for aescrypt encrypt/decrypt operations, just three pointers returning void (length is constant) |
826 const TypeFunc* OptoRuntime::aescrypt_block_Type() { | |
827 // create input type (domain) | |
828 int num_args = 3; | |
17670 | 829 if (Matcher::pass_original_key_for_aes()) { |
830 num_args = 4; | |
831 } | |
6894 | 832 int argcnt = num_args; |
833 const Type** fields = TypeTuple::fields(argcnt); | |
834 int argp = TypeFunc::Parms; | |
835 fields[argp++] = TypePtr::NOTNULL; // src | |
836 fields[argp++] = TypePtr::NOTNULL; // dest | |
837 fields[argp++] = TypePtr::NOTNULL; // k array | |
17670 | 838 if (Matcher::pass_original_key_for_aes()) { |
839 fields[argp++] = TypePtr::NOTNULL; // original k array | |
840 } | |
6894 | 841 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); |
842 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
843 | |
844 // no result type needed | |
845 fields = TypeTuple::fields(1); | |
846 fields[TypeFunc::Parms+0] = NULL; // void | |
847 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); | |
848 return TypeFunc::make(domain, range); | |
849 } | |
850 | |
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851 /** |
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852 * int updateBytesCRC32(int crc, byte* b, int len) |
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853 */ |
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854 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() { |
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855 // create input type (domain) |
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856 int num_args = 3; |
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857 int argcnt = num_args; |
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858 const Type** fields = TypeTuple::fields(argcnt); |
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859 int argp = TypeFunc::Parms; |
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860 fields[argp++] = TypeInt::INT; // crc |
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861 fields[argp++] = TypePtr::NOTNULL; // src |
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862 fields[argp++] = TypeInt::INT; // len |
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863 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); |
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864 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); |
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865 |
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866 // result type needed |
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867 fields = TypeTuple::fields(1); |
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868 fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result |
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869 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); |
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870 return TypeFunc::make(domain, range); |
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871 } |
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872 |
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873 // for cipherBlockChaining calls of aescrypt encrypt/decrypt, four pointers and a length, returning int |
6894 | 874 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() { |
875 // create input type (domain) | |
876 int num_args = 5; | |
17670 | 877 if (Matcher::pass_original_key_for_aes()) { |
878 num_args = 6; | |
879 } | |
6894 | 880 int argcnt = num_args; |
881 const Type** fields = TypeTuple::fields(argcnt); | |
882 int argp = TypeFunc::Parms; | |
883 fields[argp++] = TypePtr::NOTNULL; // src | |
884 fields[argp++] = TypePtr::NOTNULL; // dest | |
885 fields[argp++] = TypePtr::NOTNULL; // k array | |
886 fields[argp++] = TypePtr::NOTNULL; // r array | |
887 fields[argp++] = TypeInt::INT; // src len | |
17670 | 888 if (Matcher::pass_original_key_for_aes()) { |
889 fields[argp++] = TypePtr::NOTNULL; // original k array | |
890 } | |
6894 | 891 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); |
892 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
893 | |
17670 | 894 // returning cipher len (int) |
6894 | 895 fields = TypeTuple::fields(1); |
17670 | 896 fields[TypeFunc::Parms+0] = TypeInt::INT; |
897 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
6894 | 898 return TypeFunc::make(domain, range); |
899 } | |
900 | |
0 | 901 //------------- Interpreter state access for on stack replacement |
902 const TypeFunc* OptoRuntime::osr_end_Type() { | |
903 // create input type (domain) | |
904 const Type **fields = TypeTuple::fields(1); | |
905 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
906 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
907 | |
908 // create result type | |
909 fields = TypeTuple::fields(1); | |
910 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
911 fields[TypeFunc::Parms+0] = NULL; // void | |
912 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
913 return TypeFunc::make(domain, range); | |
914 } | |
915 | |
916 //-------------- methodData update helpers | |
917 | |
918 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
919 // create input type (domain) | |
920 const Type **fields = TypeTuple::fields(2); | |
921 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
922 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
923 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
924 | |
925 // create result type | |
926 fields = TypeTuple::fields(1); | |
927 fields[TypeFunc::Parms+0] = NULL; // void | |
928 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
929 return TypeFunc::make(domain,range); | |
930 } | |
931 | |
932 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
933 if (receiver == NULL) return; | |
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934 Klass* receiver_klass = receiver->klass(); |
0 | 935 |
936 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
937 int empty_row = -1; // free row, if any is encountered | |
938 | |
939 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
940 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
941 // if (vc->receiver(row) == receiver_klass) | |
942 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
943 intptr_t row_recv = *(mdp + receiver_off); | |
944 if (row_recv == (intptr_t) receiver_klass) { | |
945 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
946 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
947 *(mdp + count_off) += DataLayout::counter_increment; | |
948 return; | |
949 } else if (row_recv == 0) { | |
950 // else if (vc->receiver(row) == NULL) | |
951 empty_row = (int) row; | |
952 } | |
953 } | |
954 | |
955 if (empty_row != -1) { | |
956 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
957 // vc->set_receiver(empty_row, receiver_klass); | |
958 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
959 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
960 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
961 *(mdp + count_off) = DataLayout::counter_increment; | |
1206
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962 } else { |
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963 // Receiver did not match any saved receiver and there is no empty row for it. |
1251
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964 // Increment total counter to indicate polymorphic case. |
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965 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); |
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966 *count_p += DataLayout::counter_increment; |
0 | 967 } |
968 JRT_END | |
969 | |
970 //------------------------------------------------------------------------------------- | |
971 // register policy | |
972 | |
973 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
974 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
975 switch (register_save_policy[reg]) { | |
976 case 'C': return false; //SOC | |
977 case 'E': return true ; //SOE | |
978 case 'N': return false; //NS | |
979 case 'A': return false; //AS | |
980 } | |
981 ShouldNotReachHere(); | |
982 return false; | |
983 } | |
984 | |
985 //----------------------------------------------------------------------- | |
986 // Exceptions | |
987 // | |
988 | |
989 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
990 | |
991 // The method is an entry that is always called by a C++ method not | |
992 // directly from compiled code. Compiled code will call the C++ method following. | |
993 // We can't allow async exception to be installed during exception processing. | |
994 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
995 | |
996 // Do not confuse exception_oop with pending_exception. The exception_oop | |
997 // is only used to pass arguments into the method. Not for general | |
998 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
999 // the runtime stubs checks this on exit. | |
1000 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
1001 address handler_address = NULL; | |
1002 | |
1003 Handle exception(thread, thread->exception_oop()); | |
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1004 address pc = thread->exception_pc(); |
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1005 |
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1006 // Clear out the exception oop and pc since looking up an |
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1007 // exception handler can cause class loading, which might throw an |
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1008 // exception and those fields are expected to be clear during |
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1009 // normal bytecode execution. |
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1010 thread->clear_exception_oop_and_pc(); |
0 | 1011 |
1012 if (TraceExceptions) { | |
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1013 trace_exception(exception(), pc, ""); |
0 | 1014 } |
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1015 |
0 | 1016 // for AbortVMOnException flag |
1017 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
1018 | |
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1019 #ifdef ASSERT |
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1020 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
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1021 // should throw an exception here |
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1022 ShouldNotReachHere(); |
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1023 } |
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1024 #endif |
0 | 1025 |
1026 // new exception handling: this method is entered only from adapters | |
1027 // exceptions from compiled java methods are handled in compiled code | |
1028 // using rethrow node | |
1029 | |
1030 nm = CodeCache::find_nmethod(pc); | |
1031 assert(nm != NULL, "No NMethod found"); | |
1032 if (nm->is_native_method()) { | |
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1033 fatal("Native method should not have path to exception handling"); |
0 | 1034 } else { |
1035 // we are switching to old paradigm: search for exception handler in caller_frame | |
1036 // instead in exception handler of caller_frame.sender() | |
1037 | |
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1038 if (JvmtiExport::can_post_on_exceptions()) { |
0 | 1039 // "Full-speed catching" is not necessary here, |
1040 // since we're notifying the VM on every catch. | |
1041 // Force deoptimization and the rest of the lookup | |
1042 // will be fine. | |
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1043 deoptimize_caller_frame(thread); |
0 | 1044 } |
1045 | |
1046 // Check the stack guard pages. If enabled, look for handler in this frame; | |
1047 // otherwise, forcibly unwind the frame. | |
1048 // | |
1049 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
1050 bool force_unwind = !thread->reguard_stack(); | |
1051 bool deopting = false; | |
1052 if (nm->is_deopt_pc(pc)) { | |
1053 deopting = true; | |
1054 RegisterMap map(thread, false); | |
1055 frame deoptee = thread->last_frame().sender(&map); | |
1056 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
1057 // Adjust the pc back to the original throwing pc | |
1058 pc = deoptee.pc(); | |
1059 } | |
1060 | |
1061 // If we are forcing an unwind because of stack overflow then deopt is | |
14391 | 1062 // irrelevant since we are throwing the frame away anyway. |
0 | 1063 |
1064 if (deopting && !force_unwind) { | |
1065 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
1066 } else { | |
1067 | |
1068 handler_address = | |
1069 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
1070 | |
1071 if (handler_address == NULL) { | |
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1072 Handle original_exception(thread, exception()); |
0 | 1073 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); |
1074 assert (handler_address != NULL, "must have compiled handler"); | |
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1075 // Update the exception cache only when the unwind was not forced |
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1076 // and there didn't happen another exception during the computation of the |
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1077 // compiled exception handler. |
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1078 if (!force_unwind && original_exception() == exception()) { |
0 | 1079 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); |
1080 } | |
1081 } else { | |
1082 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
1083 } | |
1084 } | |
1085 | |
1086 thread->set_exception_pc(pc); | |
1087 thread->set_exception_handler_pc(handler_address); | |
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1088 |
1295 | 1089 // Check if the exception PC is a MethodHandle call site. |
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1090 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); |
0 | 1091 } |
1092 | |
1093 // Restore correct return pc. Was saved above. | |
1094 thread->set_exception_oop(exception()); | |
1095 return handler_address; | |
1096 | |
1097 JRT_END | |
1098 | |
1099 // We are entering here from exception_blob | |
1100 // If there is a compiled exception handler in this method, we will continue there; | |
1101 // otherwise we will unwind the stack and continue at the caller of top frame method | |
1102 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
1103 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
1104 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
14391 | 1105 // we must not use the handler and instead return the deopt blob. |
0 | 1106 address OptoRuntime::handle_exception_C(JavaThread* thread) { |
1107 // | |
1108 // We are in Java not VM and in debug mode we have a NoHandleMark | |
1109 // | |
1110 #ifndef PRODUCT | |
1111 SharedRuntime::_find_handler_ctr++; // find exception handler | |
1112 #endif | |
1113 debug_only(NoHandleMark __hm;) | |
1114 nmethod* nm = NULL; | |
1115 address handler_address = NULL; | |
1116 { | |
1117 // Enter the VM | |
1118 | |
1119 ResetNoHandleMark rnhm; | |
1120 handler_address = handle_exception_C_helper(thread, nm); | |
1121 } | |
1122 | |
1123 // Back in java: Use no oops, DON'T safepoint | |
1124 | |
1125 // Now check to see if the handler we are returning is in a now | |
1126 // deoptimized frame | |
1127 | |
1128 if (nm != NULL) { | |
1129 RegisterMap map(thread, false); | |
1130 frame caller = thread->last_frame().sender(&map); | |
1131 #ifdef ASSERT | |
1132 assert(caller.is_compiled_frame(), "must be"); | |
1133 #endif // ASSERT | |
1134 if (caller.is_deoptimized_frame()) { | |
1135 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
1136 } | |
1137 } | |
1138 return handler_address; | |
1139 } | |
1140 | |
1141 //------------------------------rethrow---------------------------------------- | |
1142 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
1143 // is either throwing or rethrowing an exception. The callee-save registers | |
1144 // have been restored, synchronized objects have been unlocked and the callee | |
1145 // stack frame has been removed. The return address was passed in. | |
1146 // Exception oop is passed as the 1st argument. This routine is then called | |
1147 // from the stub. On exit, we know where to jump in the caller's code. | |
1148 // After this C code exits, the stub will pop his frame and end in a jump | |
1149 // (instead of a return). We enter the caller's default handler. | |
1150 // | |
1151 // This must be JRT_LEAF: | |
1152 // - caller will not change its state as we cannot block on exit, | |
1153 // therefore raw_exception_handler_for_return_address is all it takes | |
1154 // to handle deoptimized blobs | |
1155 // | |
1156 // However, there needs to be a safepoint check in the middle! So compiled | |
1157 // safepoints are completely watertight. | |
1158 // | |
1159 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
1160 // | |
1161 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
1162 // | |
1163 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
1164 #ifndef PRODUCT | |
1165 SharedRuntime::_rethrow_ctr++; // count rethrows | |
1166 #endif | |
1167 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
1168 #ifdef ASSERT | |
1142 | 1169 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
0 | 1170 // should throw an exception here |
1171 ShouldNotReachHere(); | |
1172 } | |
1173 #endif | |
1174 | |
1175 thread->set_vm_result(exception); | |
1176 // Frame not compiled (handles deoptimization blob) | |
1295 | 1177 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); |
0 | 1178 } |
1179 | |
1180 | |
1181 const TypeFunc *OptoRuntime::rethrow_Type() { | |
1182 // create input type (domain) | |
1183 const Type **fields = TypeTuple::fields(1); | |
1184 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1185 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1186 | |
1187 // create result type (range) | |
1188 fields = TypeTuple::fields(1); | |
1189 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
1190 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
1191 | |
1192 return TypeFunc::make(domain, range); | |
1193 } | |
1194 | |
1195 | |
1196 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
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1197 // Deoptimize the caller before continuing, as the compiled |
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1198 // exception handler table may not be valid. |
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1199 if (!StressCompiledExceptionHandlers && doit) { |
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1200 deoptimize_caller_frame(thread); |
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1201 } |
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1202 } |
0 | 1203 |
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1204 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) { |
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1205 // Called from within the owner thread, so no need for safepoint |
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1206 RegisterMap reg_map(thread); |
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1207 frame stub_frame = thread->last_frame(); |
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1208 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); |
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1209 frame caller_frame = stub_frame.sender(®_map); |
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1210 |
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1211 // Deoptimize the caller frame. |
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1212 Deoptimization::deoptimize_frame(thread, caller_frame.id()); |
0 | 1213 } |
1214 | |
1215 | |
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1216 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) { |
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1217 // Called from within the owner thread, so no need for safepoint |
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1218 RegisterMap reg_map(thread); |
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1219 frame stub_frame = thread->last_frame(); |
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1220 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); |
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1221 frame caller_frame = stub_frame.sender(®_map); |
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1222 return caller_frame.is_deoptimized_frame(); |
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1223 } |
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1224 |
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1225 |
0 | 1226 const TypeFunc *OptoRuntime::register_finalizer_Type() { |
1227 // create input type (domain) | |
1228 const Type **fields = TypeTuple::fields(1); | |
1229 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
1230 // // The JavaThread* is passed to each routine as the last argument | |
1231 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
1232 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
1233 | |
1234 // create result type (range) | |
1235 fields = TypeTuple::fields(0); | |
1236 | |
1237 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1238 | |
1239 return TypeFunc::make(domain,range); | |
1240 } | |
1241 | |
1242 | |
1243 //----------------------------------------------------------------------------- | |
1244 // Dtrace support. entry and exit probes have the same signature | |
1245 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
1246 // create input type (domain) | |
1247 const Type **fields = TypeTuple::fields(2); | |
1248 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
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1249 fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM; // Method*; Method we are entering |
0 | 1250 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
1251 | |
1252 // create result type (range) | |
1253 fields = TypeTuple::fields(0); | |
1254 | |
1255 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1256 | |
1257 return TypeFunc::make(domain,range); | |
1258 } | |
1259 | |
1260 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
1261 // create input type (domain) | |
1262 const Type **fields = TypeTuple::fields(2); | |
1263 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
1264 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
1265 | |
1266 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
1267 | |
1268 // create result type (range) | |
1269 fields = TypeTuple::fields(0); | |
1270 | |
1271 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
1272 | |
1273 return TypeFunc::make(domain,range); | |
1274 } | |
1275 | |
1276 | |
1277 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
1278 assert(obj->is_oop(), "must be a valid oop"); | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
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1279 assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
1280 InstanceKlass::register_finalizer(instanceOop(obj), CHECK); |
0 | 1281 JRT_END |
1282 | |
1283 //----------------------------------------------------------------------------- | |
1284 | |
1285 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
1286 | |
1287 // | |
1288 // dump the collected NamedCounters. | |
1289 // | |
1290 void OptoRuntime::print_named_counters() { | |
1291 int total_lock_count = 0; | |
1292 int eliminated_lock_count = 0; | |
1293 | |
1294 NamedCounter* c = _named_counters; | |
1295 while (c) { | |
1296 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
1297 int count = c->count(); | |
1298 if (count > 0) { | |
1299 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
1300 if (Verbose) { | |
1301 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
1302 } | |
1303 total_lock_count += count; | |
1304 if (eliminated) { | |
1305 eliminated_lock_count += count; | |
1306 } | |
1307 } | |
1308 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
1309 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
1310 if (blc->nonzero()) { | |
1311 tty->print_cr("%s", c->name()); | |
1312 blc->print_on(tty); | |
1313 } | |
17780 | 1314 #if INCLUDE_RTM_OPT |
1315 } else if (c->tag() == NamedCounter::RTMLockingCounter) { | |
1316 RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters(); | |
1317 if (rlc->nonzero()) { | |
1318 tty->print_cr("%s", c->name()); | |
1319 rlc->print_on(tty); | |
1320 } | |
1321 #endif | |
0 | 1322 } |
1323 c = c->next(); | |
1324 } | |
1325 if (total_lock_count > 0) { | |
1326 tty->print_cr("dynamic locks: %d", total_lock_count); | |
1327 if (eliminated_lock_count) { | |
1328 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
1329 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
1330 } | |
1331 } | |
1332 } | |
1333 | |
1334 // | |
1335 // Allocate a new NamedCounter. The JVMState is used to generate the | |
1336 // name which consists of method@line for the inlining tree. | |
1337 // | |
1338 | |
1339 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
1340 int max_depth = youngest_jvms->depth(); | |
1341 | |
1342 // Visit scopes from youngest to oldest. | |
1343 bool first = true; | |
1344 stringStream st; | |
1345 for (int depth = max_depth; depth >= 1; depth--) { | |
1346 JVMState* jvms = youngest_jvms->of_depth(depth); | |
1347 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
1348 if (!first) { | |
1349 st.print(" "); | |
1350 } else { | |
1351 first = false; | |
1352 } | |
1353 int bci = jvms->bci(); | |
1354 if (bci < 0) bci = 0; | |
1355 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
1356 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
1357 } | |
1358 NamedCounter* c; | |
1359 if (tag == NamedCounter::BiasedLockingCounter) { | |
1360 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
17780 | 1361 } else if (tag == NamedCounter::RTMLockingCounter) { |
1362 c = new RTMLockingNamedCounter(strdup(st.as_string())); | |
0 | 1363 } else { |
1364 c = new NamedCounter(strdup(st.as_string()), tag); | |
1365 } | |
1366 | |
1367 // atomically add the new counter to the head of the list. We only | |
1368 // add counters so this is safe. | |
1369 NamedCounter* head; | |
1370 do { | |
17780 | 1371 c->set_next(NULL); |
0 | 1372 head = _named_counters; |
1373 c->set_next(head); | |
1374 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
1375 return c; | |
1376 } | |
1377 | |
1378 //----------------------------------------------------------------------------- | |
1379 // Non-product code | |
1380 #ifndef PRODUCT | |
1381 | |
1382 int trace_exception_counter = 0; | |
1383 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
1384 ttyLocker ttyl; | |
1385 trace_exception_counter++; | |
1386 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
1387 exception_oop->print_value(); | |
1388 tty->print(" in "); | |
1389 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
1390 if (blob->is_nmethod()) { | |
12876
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8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
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1391 nmethod* nm = blob->as_nmethod_or_null(); |
8b80b262e501
8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
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1392 nm->method()->print_value(); |
0 | 1393 } else if (blob->is_runtime_stub()) { |
1394 tty->print("<runtime-stub>"); | |
1395 } else { | |
1396 tty->print("<unknown>"); | |
1397 } | |
17937
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8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
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1398 tty->print(" at " INTPTR_FORMAT, p2i(exception_pc)); |
0 | 1399 tty->print_cr("]"); |
1400 } | |
1401 | |
1402 #endif // PRODUCT | |
1403 | |
1404 | |
1405 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
1406 // Called from call sites in compiled code with oop maps (actually safepoints) | |
1407 // Zaps dead locals in first java frame. | |
1408 // Is entry because may need to lock to generate oop maps | |
1409 // Currently, only used for compiler frames, but someday may be used | |
1410 // for interpreter frames, too. | |
1411 | |
1412 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
1413 | |
1414 // avoid pointers to member funcs with these helpers | |
1415 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
1416 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
1417 | |
1418 | |
1419 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
1420 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
1421 assert(JavaThread::current() == thread, "is this needed?"); | |
1422 | |
1423 if ( !ZapDeadCompiledLocals ) return; | |
1424 | |
1425 bool skip = false; | |
1426 | |
1427 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
1428 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
1429 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
1430 warning("starting zapping after skipping"); | |
1431 | |
1432 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
1433 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
1434 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
1435 warning("about to zap last zap"); | |
1436 | |
1437 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
1438 | |
1439 if ( skip ) return; | |
1440 | |
1441 // find java frame and zap it | |
1442 | |
1443 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
1444 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
1445 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
1446 return; | |
1447 } | |
1448 } | |
1449 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
1450 } | |
1451 | |
1452 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
1453 zap_dead_java_or_native_locals(thread, is_java_frame); | |
1454 JRT_END | |
1455 | |
1456 // The following does not work because for one thing, the | |
1457 // thread state is wrong; it expects java, but it is native. | |
605 | 1458 // Also, the invariants in a native stub are different and |
0 | 1459 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
1460 // in there. | |
1461 // So for now, we do not zap in native stubs. | |
1462 | |
1463 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
1464 zap_dead_java_or_native_locals(thread, is_native_frame); | |
1465 JRT_END | |
1466 | |
1467 # endif |