Mercurial > hg > truffle
annotate src/share/vm/opto/runtime.cpp @ 3899:c124e2e7463e
7083786: dead various dead chunks of code
Reviewed-by: iveresov, kvn
| author | never |
|---|---|
| date | Wed, 31 Aug 2011 16:46:11 -0700 |
| parents | 263247c478c5 |
| children | a92cdbac8b9e |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "code/compiledIC.hpp" | |
| 29 #include "code/icBuffer.hpp" | |
| 30 #include "code/nmethod.hpp" | |
| 31 #include "code/pcDesc.hpp" | |
| 32 #include "code/scopeDesc.hpp" | |
| 33 #include "code/vtableStubs.hpp" | |
| 34 #include "compiler/compileBroker.hpp" | |
| 35 #include "compiler/compilerOracle.hpp" | |
| 36 #include "compiler/oopMap.hpp" | |
| 37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" | |
| 38 #include "gc_implementation/g1/heapRegion.hpp" | |
| 39 #include "gc_interface/collectedHeap.hpp" | |
| 40 #include "interpreter/bytecode.hpp" | |
| 41 #include "interpreter/interpreter.hpp" | |
| 42 #include "interpreter/linkResolver.hpp" | |
| 43 #include "memory/barrierSet.hpp" | |
| 44 #include "memory/gcLocker.inline.hpp" | |
| 45 #include "memory/oopFactory.hpp" | |
| 46 #include "oops/objArrayKlass.hpp" | |
| 47 #include "oops/oop.inline.hpp" | |
| 48 #include "opto/addnode.hpp" | |
| 49 #include "opto/callnode.hpp" | |
| 50 #include "opto/cfgnode.hpp" | |
| 51 #include "opto/connode.hpp" | |
| 52 #include "opto/graphKit.hpp" | |
| 53 #include "opto/machnode.hpp" | |
| 54 #include "opto/matcher.hpp" | |
| 55 #include "opto/memnode.hpp" | |
| 56 #include "opto/mulnode.hpp" | |
| 57 #include "opto/runtime.hpp" | |
| 58 #include "opto/subnode.hpp" | |
| 59 #include "runtime/fprofiler.hpp" | |
| 60 #include "runtime/handles.inline.hpp" | |
| 61 #include "runtime/interfaceSupport.hpp" | |
| 62 #include "runtime/javaCalls.hpp" | |
| 63 #include "runtime/sharedRuntime.hpp" | |
| 64 #include "runtime/signature.hpp" | |
| 65 #include "runtime/threadCritical.hpp" | |
| 66 #include "runtime/vframe.hpp" | |
| 67 #include "runtime/vframeArray.hpp" | |
| 68 #include "runtime/vframe_hp.hpp" | |
| 69 #include "utilities/copy.hpp" | |
| 70 #include "utilities/preserveException.hpp" | |
| 71 #ifdef TARGET_ARCH_MODEL_x86_32 | |
| 72 # include "adfiles/ad_x86_32.hpp" | |
| 73 #endif | |
| 74 #ifdef TARGET_ARCH_MODEL_x86_64 | |
| 75 # include "adfiles/ad_x86_64.hpp" | |
| 76 #endif | |
| 77 #ifdef TARGET_ARCH_MODEL_sparc | |
| 78 # include "adfiles/ad_sparc.hpp" | |
| 79 #endif | |
| 80 #ifdef TARGET_ARCH_MODEL_zero | |
| 81 # include "adfiles/ad_zero.hpp" | |
| 82 #endif | |
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83 #ifdef TARGET_ARCH_MODEL_arm |
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84 # include "adfiles/ad_arm.hpp" |
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85 #endif |
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86 #ifdef TARGET_ARCH_MODEL_ppc |
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87 # include "adfiles/ad_ppc.hpp" |
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88 #endif |
| 0 | 89 |
| 90 | |
| 91 // For debugging purposes: | |
| 92 // To force FullGCALot inside a runtime function, add the following two lines | |
| 93 // | |
| 94 // Universe::release_fullgc_alot_dummy(); | |
| 95 // MarkSweep::invoke(0, "Debugging"); | |
| 96 // | |
| 97 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 | |
| 98 | |
| 99 | |
| 100 | |
| 101 | |
| 102 // Compiled code entry points | |
| 103 address OptoRuntime::_new_instance_Java = NULL; | |
| 104 address OptoRuntime::_new_array_Java = NULL; | |
| 105 address OptoRuntime::_multianewarray2_Java = NULL; | |
| 106 address OptoRuntime::_multianewarray3_Java = NULL; | |
| 107 address OptoRuntime::_multianewarray4_Java = NULL; | |
| 108 address OptoRuntime::_multianewarray5_Java = NULL; | |
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109 address OptoRuntime::_multianewarrayN_Java = NULL; |
| 342 | 110 address OptoRuntime::_g1_wb_pre_Java = NULL; |
| 111 address OptoRuntime::_g1_wb_post_Java = NULL; | |
| 0 | 112 address OptoRuntime::_vtable_must_compile_Java = NULL; |
| 113 address OptoRuntime::_complete_monitor_locking_Java = NULL; | |
| 114 address OptoRuntime::_rethrow_Java = NULL; | |
| 115 | |
| 116 address OptoRuntime::_slow_arraycopy_Java = NULL; | |
| 117 address OptoRuntime::_register_finalizer_Java = NULL; | |
| 118 | |
| 119 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 120 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; | |
| 121 address OptoRuntime::_zap_dead_native_locals_Java = NULL; | |
| 122 # endif | |
| 123 | |
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124 ExceptionBlob* OptoRuntime::_exception_blob; |
| 0 | 125 |
| 126 // This should be called in an assertion at the start of OptoRuntime routines | |
| 127 // which are entered from compiled code (all of them) | |
| 128 #ifndef PRODUCT | |
| 129 static bool check_compiled_frame(JavaThread* thread) { | |
| 130 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); | |
| 131 #ifdef ASSERT | |
| 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 #endif /* ASSERT */ | |
| 136 return true; | |
| 137 } | |
| 138 #endif | |
| 139 | |
| 140 | |
| 141 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ | |
| 142 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc) | |
| 143 | |
| 144 void OptoRuntime::generate(ciEnv* env) { | |
| 145 | |
| 146 generate_exception_blob(); | |
| 147 | |
| 148 // Note: tls: Means fetching the return oop out of the thread-local storage | |
| 149 // | |
| 150 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc | |
| 151 // ------------------------------------------------------------------------------------------------------------------------------- | |
| 152 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); | |
| 153 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); | |
| 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 | |
| 229 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread)) | |
| 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. | |
| 237 int lh = Klass::cast(klass)->layout_helper(); | |
| 238 if (Klass::layout_helper_needs_slow_path(lh) | |
| 239 || !instanceKlass::cast(klass)->is_initialized()) { | |
| 240 KlassHandle kh(THREAD, klass); | |
| 241 kh->check_valid_for_instantiation(false, THREAD); | |
| 242 if (!HAS_PENDING_EXCEPTION) { | |
| 243 instanceKlass::cast(kh())->initialize(THREAD); | |
| 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. | |
| 254 oop result = instanceKlass::cast(klass)->allocate_instance(THREAD); | |
| 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 | |
| 274 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread)) | |
| 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 | |
| 284 if (Klass::cast(array_type)->oop_is_typeArray()) { | |
| 285 // The oopFactory likes to work with the element type. | |
| 286 // (We could bypass the oopFactory, since it doesn't add much value.) | |
| 287 BasicType elem_type = typeArrayKlass::cast(array_type)->element_type(); | |
| 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. | |
| 293 klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass(); | |
| 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 | |
| 311 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. | |
| 312 | |
| 313 // multianewarray for 2 dimensions | |
| 314 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread)) | |
| 315 #ifndef PRODUCT | |
| 316 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension | |
| 317 #endif | |
| 318 assert(check_compiled_frame(thread), "incorrect caller"); | |
| 319 assert(oop(elem_type)->is_klass(), "not a class"); | |
| 320 jint dims[2]; | |
| 321 dims[0] = len1; | |
| 322 dims[1] = len2; | |
| 323 oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); | |
| 324 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
| 325 thread->set_vm_result(obj); | |
| 326 JRT_END | |
| 327 | |
| 328 // multianewarray for 3 dimensions | |
| 329 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread)) | |
| 330 #ifndef PRODUCT | |
| 331 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension | |
| 332 #endif | |
| 333 assert(check_compiled_frame(thread), "incorrect caller"); | |
| 334 assert(oop(elem_type)->is_klass(), "not a class"); | |
| 335 jint dims[3]; | |
| 336 dims[0] = len1; | |
| 337 dims[1] = len2; | |
| 338 dims[2] = len3; | |
| 339 oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); | |
| 340 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
| 341 thread->set_vm_result(obj); | |
| 342 JRT_END | |
| 343 | |
| 344 // multianewarray for 4 dimensions | |
| 345 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) | |
| 346 #ifndef PRODUCT | |
| 347 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension | |
| 348 #endif | |
| 349 assert(check_compiled_frame(thread), "incorrect caller"); | |
| 350 assert(oop(elem_type)->is_klass(), "not a class"); | |
| 351 jint dims[4]; | |
| 352 dims[0] = len1; | |
| 353 dims[1] = len2; | |
| 354 dims[2] = len3; | |
| 355 dims[3] = len4; | |
| 356 oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); | |
| 357 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
| 358 thread->set_vm_result(obj); | |
| 359 JRT_END | |
| 360 | |
| 361 // multianewarray for 5 dimensions | |
| 362 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) | |
| 363 #ifndef PRODUCT | |
| 364 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension | |
| 365 #endif | |
| 366 assert(check_compiled_frame(thread), "incorrect caller"); | |
| 367 assert(oop(elem_type)->is_klass(), "not a class"); | |
| 368 jint dims[5]; | |
| 369 dims[0] = len1; | |
| 370 dims[1] = len2; | |
| 371 dims[2] = len3; | |
| 372 dims[3] = len4; | |
| 373 dims[4] = len5; | |
| 374 oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); | |
| 375 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); | |
| 376 thread->set_vm_result(obj); | |
| 377 JRT_END | |
| 378 | |
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379 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(klassOopDesc* elem_type, arrayOopDesc* dims, JavaThread *thread)) |
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380 assert(check_compiled_frame(thread), "incorrect caller"); |
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381 assert(oop(elem_type)->is_klass(), "not a class"); |
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382 assert(oop(dims)->is_typeArray(), "not an array"); |
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383 |
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384 ResourceMark rm; |
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385 jint len = dims->length(); |
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386 assert(len > 0, "Dimensions array should contain data"); |
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387 jint *j_dims = typeArrayOop(dims)->int_at_addr(0); |
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388 jint *c_dims = NEW_RESOURCE_ARRAY(jint, len); |
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389 Copy::conjoint_jints_atomic(j_dims, c_dims, len); |
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390 |
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391 oop obj = arrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD); |
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392 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
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393 thread->set_vm_result(obj); |
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394 JRT_END |
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395 |
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396 |
| 0 | 397 const TypeFunc *OptoRuntime::new_instance_Type() { |
| 398 // create input type (domain) | |
| 399 const Type **fields = TypeTuple::fields(1); | |
| 400 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
| 401 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 402 | |
| 403 // create result type (range) | |
| 404 fields = TypeTuple::fields(1); | |
| 405 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
| 406 | |
| 407 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 408 | |
| 409 return TypeFunc::make(domain, range); | |
| 410 } | |
| 411 | |
| 412 | |
| 413 const TypeFunc *OptoRuntime::athrow_Type() { | |
| 414 // create input type (domain) | |
| 415 const Type **fields = TypeTuple::fields(1); | |
| 416 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated | |
| 417 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 418 | |
| 419 // create result type (range) | |
| 420 fields = TypeTuple::fields(0); | |
| 421 | |
| 422 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
| 423 | |
| 424 return TypeFunc::make(domain, range); | |
| 425 } | |
| 426 | |
| 427 | |
| 428 const TypeFunc *OptoRuntime::new_array_Type() { | |
| 429 // create input type (domain) | |
| 430 const Type **fields = TypeTuple::fields(2); | |
| 431 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
| 432 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size | |
| 433 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 434 | |
| 435 // create result type (range) | |
| 436 fields = TypeTuple::fields(1); | |
| 437 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
| 438 | |
| 439 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 440 | |
| 441 return TypeFunc::make(domain, range); | |
| 442 } | |
| 443 | |
| 444 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { | |
| 445 // create input type (domain) | |
| 446 const int nargs = ndim + 1; | |
| 447 const Type **fields = TypeTuple::fields(nargs); | |
| 448 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass | |
| 449 for( int i = 1; i < nargs; i++ ) | |
| 450 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size | |
| 451 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); | |
| 452 | |
| 453 // create result type (range) | |
| 454 fields = TypeTuple::fields(1); | |
| 455 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop | |
| 456 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 457 | |
| 458 return TypeFunc::make(domain, range); | |
| 459 } | |
| 460 | |
| 461 const TypeFunc *OptoRuntime::multianewarray2_Type() { | |
| 462 return multianewarray_Type(2); | |
| 463 } | |
| 464 | |
| 465 const TypeFunc *OptoRuntime::multianewarray3_Type() { | |
| 466 return multianewarray_Type(3); | |
| 467 } | |
| 468 | |
| 469 const TypeFunc *OptoRuntime::multianewarray4_Type() { | |
| 470 return multianewarray_Type(4); | |
| 471 } | |
| 472 | |
| 473 const TypeFunc *OptoRuntime::multianewarray5_Type() { | |
| 474 return multianewarray_Type(5); | |
| 475 } | |
| 476 | |
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477 const TypeFunc *OptoRuntime::multianewarrayN_Type() { |
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478 // create input type (domain) |
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479 const Type **fields = TypeTuple::fields(2); |
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480 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass |
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481 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // array of dim sizes |
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482 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
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483 |
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484 // create result type (range) |
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485 fields = TypeTuple::fields(1); |
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486 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
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487 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
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488 |
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489 return TypeFunc::make(domain, range); |
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490 } |
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491 |
| 342 | 492 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
| 493 const Type **fields = TypeTuple::fields(2); | |
| 494 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value | |
| 495 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
| 496 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 497 | |
| 498 // create result type (range) | |
| 499 fields = TypeTuple::fields(0); | |
| 500 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
| 501 | |
| 502 return TypeFunc::make(domain, range); | |
| 503 } | |
| 504 | |
| 505 const TypeFunc *OptoRuntime::g1_wb_post_Type() { | |
| 506 | |
| 507 const Type **fields = TypeTuple::fields(2); | |
| 508 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr | |
| 509 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread | |
| 510 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 511 | |
| 512 // create result type (range) | |
| 513 fields = TypeTuple::fields(0); | |
| 514 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
| 515 | |
| 516 return TypeFunc::make(domain, range); | |
| 517 } | |
| 518 | |
| 0 | 519 const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
| 520 // create input type (domain) | |
| 521 const Type **fields = TypeTuple::fields(1); | |
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522 // Symbol* name of class to be loaded |
| 0 | 523 fields[TypeFunc::Parms+0] = TypeInt::INT; |
| 524 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 525 | |
| 526 // create result type (range) | |
| 527 fields = TypeTuple::fields(0); | |
| 528 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); | |
| 529 | |
| 530 return TypeFunc::make(domain, range); | |
| 531 } | |
| 532 | |
| 533 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 534 // Type used for stub generation for zap_dead_locals. | |
| 535 // No inputs or outputs | |
| 536 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { | |
| 537 // create input type (domain) | |
| 538 const Type **fields = TypeTuple::fields(0); | |
| 539 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); | |
| 540 | |
| 541 // create result type (range) | |
| 542 fields = TypeTuple::fields(0); | |
| 543 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); | |
| 544 | |
| 545 return TypeFunc::make(domain,range); | |
| 546 } | |
| 547 # endif | |
| 548 | |
| 549 | |
| 550 //----------------------------------------------------------------------------- | |
| 551 // Monitor Handling | |
| 552 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { | |
| 553 // create input type (domain) | |
| 554 const Type **fields = TypeTuple::fields(2); | |
| 555 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
| 556 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
| 557 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
| 558 | |
| 559 // create result type (range) | |
| 560 fields = TypeTuple::fields(0); | |
| 561 | |
| 562 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
| 563 | |
| 564 return TypeFunc::make(domain,range); | |
| 565 } | |
| 566 | |
| 567 | |
| 568 //----------------------------------------------------------------------------- | |
| 569 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { | |
| 570 // create input type (domain) | |
| 571 const Type **fields = TypeTuple::fields(2); | |
| 572 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked | |
| 573 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock | |
| 574 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
| 575 | |
| 576 // create result type (range) | |
| 577 fields = TypeTuple::fields(0); | |
| 578 | |
| 579 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
| 580 | |
| 581 return TypeFunc::make(domain,range); | |
| 582 } | |
| 583 | |
| 584 const TypeFunc* OptoRuntime::flush_windows_Type() { | |
| 585 // create input type (domain) | |
| 586 const Type** fields = TypeTuple::fields(1); | |
| 587 fields[TypeFunc::Parms+0] = NULL; // void | |
| 588 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); | |
| 589 | |
| 590 // create result type | |
| 591 fields = TypeTuple::fields(1); | |
| 592 fields[TypeFunc::Parms+0] = NULL; // void | |
| 593 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
| 594 | |
| 595 return TypeFunc::make(domain, range); | |
| 596 } | |
| 597 | |
| 598 const TypeFunc* OptoRuntime::l2f_Type() { | |
| 599 // create input type (domain) | |
| 600 const Type **fields = TypeTuple::fields(2); | |
| 601 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
| 602 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 603 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 604 | |
| 605 // create result type (range) | |
| 606 fields = TypeTuple::fields(1); | |
| 607 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
| 608 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 609 | |
| 610 return TypeFunc::make(domain, range); | |
| 611 } | |
| 612 | |
| 613 const TypeFunc* OptoRuntime::modf_Type() { | |
| 614 const Type **fields = TypeTuple::fields(2); | |
| 615 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
| 616 fields[TypeFunc::Parms+1] = Type::FLOAT; | |
| 617 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 618 | |
| 619 // create result type (range) | |
| 620 fields = TypeTuple::fields(1); | |
| 621 fields[TypeFunc::Parms+0] = Type::FLOAT; | |
| 622 | |
| 623 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 624 | |
| 625 return TypeFunc::make(domain, range); | |
| 626 } | |
| 627 | |
| 628 const TypeFunc *OptoRuntime::Math_D_D_Type() { | |
| 629 // create input type (domain) | |
| 630 const Type **fields = TypeTuple::fields(2); | |
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631 // Symbol* name of class to be loaded |
| 0 | 632 fields[TypeFunc::Parms+0] = Type::DOUBLE; |
| 633 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 634 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 635 | |
| 636 // create result type (range) | |
| 637 fields = TypeTuple::fields(2); | |
| 638 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
| 639 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 640 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 641 | |
| 642 return TypeFunc::make(domain, range); | |
| 643 } | |
| 644 | |
| 645 const TypeFunc* OptoRuntime::Math_DD_D_Type() { | |
| 646 const Type **fields = TypeTuple::fields(4); | |
| 647 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
| 648 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 649 fields[TypeFunc::Parms+2] = Type::DOUBLE; | |
| 650 fields[TypeFunc::Parms+3] = Type::HALF; | |
| 651 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); | |
| 652 | |
| 653 // create result type (range) | |
| 654 fields = TypeTuple::fields(2); | |
| 655 fields[TypeFunc::Parms+0] = Type::DOUBLE; | |
| 656 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 657 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 658 | |
| 659 return TypeFunc::make(domain, range); | |
| 660 } | |
| 661 | |
| 662 //-------------- currentTimeMillis | |
| 663 | |
| 664 const TypeFunc* OptoRuntime::current_time_millis_Type() { | |
| 665 // create input type (domain) | |
| 666 const Type **fields = TypeTuple::fields(0); | |
| 667 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); | |
| 668 | |
| 669 // create result type (range) | |
| 670 fields = TypeTuple::fields(2); | |
| 671 fields[TypeFunc::Parms+0] = TypeLong::LONG; | |
| 672 fields[TypeFunc::Parms+1] = Type::HALF; | |
| 673 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 674 | |
| 675 return TypeFunc::make(domain, range); | |
| 676 } | |
| 677 | |
| 678 // arraycopy stub variations: | |
| 679 enum ArrayCopyType { | |
| 680 ac_fast, // void(ptr, ptr, size_t) | |
| 681 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) | |
| 682 ac_slow, // void(ptr, int, ptr, int, int) | |
| 683 ac_generic // int(ptr, int, ptr, int, int) | |
| 684 }; | |
| 685 | |
| 686 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { | |
| 687 // create input type (domain) | |
| 688 int num_args = (act == ac_fast ? 3 : 5); | |
| 689 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); | |
| 690 int argcnt = num_args; | |
| 691 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths | |
| 692 const Type** fields = TypeTuple::fields(argcnt); | |
| 693 int argp = TypeFunc::Parms; | |
| 694 fields[argp++] = TypePtr::NOTNULL; // src | |
| 695 if (num_size_args == 0) { | |
| 696 fields[argp++] = TypeInt::INT; // src_pos | |
| 697 } | |
| 698 fields[argp++] = TypePtr::NOTNULL; // dest | |
| 699 if (num_size_args == 0) { | |
| 700 fields[argp++] = TypeInt::INT; // dest_pos | |
| 701 fields[argp++] = TypeInt::INT; // length | |
| 702 } | |
| 703 while (num_size_args-- > 0) { | |
| 704 fields[argp++] = TypeX_X; // size in whatevers (size_t) | |
| 705 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length | |
| 706 } | |
| 707 if (act == ac_checkcast) { | |
| 708 fields[argp++] = TypePtr::NOTNULL; // super_klass | |
| 709 } | |
| 710 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); | |
| 711 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); | |
| 712 | |
| 713 // create result type if needed | |
| 714 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); | |
| 715 fields = TypeTuple::fields(1); | |
| 716 if (retcnt == 0) | |
| 717 fields[TypeFunc::Parms+0] = NULL; // void | |
| 718 else | |
| 719 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed | |
| 720 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); | |
| 721 return TypeFunc::make(domain, range); | |
| 722 } | |
| 723 | |
| 724 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { | |
| 725 // This signature is simple: Two base pointers and a size_t. | |
| 726 return make_arraycopy_Type(ac_fast); | |
| 727 } | |
| 728 | |
| 729 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { | |
| 730 // An extension of fast_arraycopy_Type which adds type checking. | |
| 731 return make_arraycopy_Type(ac_checkcast); | |
| 732 } | |
| 733 | |
| 734 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { | |
| 735 // This signature is exactly the same as System.arraycopy. | |
| 736 // There are no intptr_t (int/long) arguments. | |
| 737 return make_arraycopy_Type(ac_slow); | |
| 738 } | |
| 739 | |
| 740 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { | |
| 741 // This signature is like System.arraycopy, except that it returns status. | |
| 742 return make_arraycopy_Type(ac_generic); | |
| 743 } | |
| 744 | |
| 745 | |
| 1763 | 746 const TypeFunc* OptoRuntime::array_fill_Type() { |
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747 // create input type (domain): pointer, int, size_t |
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748 const Type** fields = TypeTuple::fields(3 LP64_ONLY( + 1)); |
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749 int argp = TypeFunc::Parms; |
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750 fields[argp++] = TypePtr::NOTNULL; |
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751 fields[argp++] = TypeInt::INT; |
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752 fields[argp++] = TypeX_X; // size in whatevers (size_t) |
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753 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
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754 const TypeTuple *domain = TypeTuple::make(argp, fields); |
| 1763 | 755 |
| 756 // create result type | |
| 757 fields = TypeTuple::fields(1); | |
| 758 fields[TypeFunc::Parms+0] = NULL; // void | |
| 759 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
| 760 | |
| 761 return TypeFunc::make(domain, range); | |
| 762 } | |
| 763 | |
| 0 | 764 //------------- Interpreter state access for on stack replacement |
| 765 const TypeFunc* OptoRuntime::osr_end_Type() { | |
| 766 // create input type (domain) | |
| 767 const Type **fields = TypeTuple::fields(1); | |
| 768 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf | |
| 769 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 770 | |
| 771 // create result type | |
| 772 fields = TypeTuple::fields(1); | |
| 773 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop | |
| 774 fields[TypeFunc::Parms+0] = NULL; // void | |
| 775 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
| 776 return TypeFunc::make(domain, range); | |
| 777 } | |
| 778 | |
| 779 //-------------- methodData update helpers | |
| 780 | |
| 781 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { | |
| 782 // create input type (domain) | |
| 783 const Type **fields = TypeTuple::fields(2); | |
| 784 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer | |
| 785 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop | |
| 786 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); | |
| 787 | |
| 788 // create result type | |
| 789 fields = TypeTuple::fields(1); | |
| 790 fields[TypeFunc::Parms+0] = NULL; // void | |
| 791 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); | |
| 792 return TypeFunc::make(domain,range); | |
| 793 } | |
| 794 | |
| 795 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) | |
| 796 if (receiver == NULL) return; | |
| 797 klassOop receiver_klass = receiver->klass(); | |
| 798 | |
| 799 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); | |
| 800 int empty_row = -1; // free row, if any is encountered | |
| 801 | |
| 802 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); | |
| 803 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { | |
| 804 // if (vc->receiver(row) == receiver_klass) | |
| 805 int receiver_off = ReceiverTypeData::receiver_cell_index(row); | |
| 806 intptr_t row_recv = *(mdp + receiver_off); | |
| 807 if (row_recv == (intptr_t) receiver_klass) { | |
| 808 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); | |
| 809 int count_off = ReceiverTypeData::receiver_count_cell_index(row); | |
| 810 *(mdp + count_off) += DataLayout::counter_increment; | |
| 811 return; | |
| 812 } else if (row_recv == 0) { | |
| 813 // else if (vc->receiver(row) == NULL) | |
| 814 empty_row = (int) row; | |
| 815 } | |
| 816 } | |
| 817 | |
| 818 if (empty_row != -1) { | |
| 819 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); | |
| 820 // vc->set_receiver(empty_row, receiver_klass); | |
| 821 *(mdp + receiver_off) = (intptr_t) receiver_klass; | |
| 822 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); | |
| 823 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); | |
| 824 *(mdp + count_off) = DataLayout::counter_increment; | |
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825 } else { |
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826 // Receiver did not match any saved receiver and there is no empty row for it. |
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827 // Increment total counter to indicate polymorphic case. |
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828 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); |
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829 *count_p += DataLayout::counter_increment; |
| 0 | 830 } |
| 831 JRT_END | |
| 832 | |
| 833 //----------------------------------------------------------------------------- | |
| 834 // implicit exception support. | |
| 835 | |
| 836 static void report_null_exception_in_code_cache(address exception_pc) { | |
| 837 ResourceMark rm; | |
| 838 CodeBlob* n = CodeCache::find_blob(exception_pc); | |
| 839 if (n != NULL) { | |
| 840 tty->print_cr("#"); | |
| 841 tty->print_cr("# HotSpot Runtime Error, null exception in generated code"); | |
| 842 tty->print_cr("#"); | |
| 843 tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc); | |
| 844 | |
| 845 if (n->is_nmethod()) { | |
| 846 methodOop method = ((nmethod*)n)->method(); | |
| 847 tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string()); | |
| 848 tty->print_cr("#"); | |
| 849 if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) { | |
| 850 const char* title = "HotSpot Runtime Error"; | |
| 851 const char* question = "Do you want to exclude compilation of this method in future runs?"; | |
| 852 if (os::message_box(title, question)) { | |
| 853 CompilerOracle::append_comment_to_file(""); | |
| 854 CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude"); | |
| 855 CompilerOracle::append_comment_to_file(""); | |
| 856 CompilerOracle::append_exclude_to_file(method); | |
| 857 tty->print_cr("#"); | |
| 858 tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile); | |
| 859 tty->print_cr("#"); | |
| 860 } | |
| 861 } | |
| 862 fatal("Implicit null exception happened in compiled method"); | |
| 863 } else { | |
| 864 n->print(); | |
| 865 fatal("Implicit null exception happened in generated stub"); | |
| 866 } | |
| 867 } | |
| 868 fatal("Implicit null exception at wrong place"); | |
| 869 } | |
| 870 | |
| 871 | |
| 872 //------------------------------------------------------------------------------------- | |
| 873 // register policy | |
| 874 | |
| 875 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { | |
| 876 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); | |
| 877 switch (register_save_policy[reg]) { | |
| 878 case 'C': return false; //SOC | |
| 879 case 'E': return true ; //SOE | |
| 880 case 'N': return false; //NS | |
| 881 case 'A': return false; //AS | |
| 882 } | |
| 883 ShouldNotReachHere(); | |
| 884 return false; | |
| 885 } | |
| 886 | |
| 887 //----------------------------------------------------------------------- | |
| 888 // Exceptions | |
| 889 // | |
| 890 | |
| 891 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; | |
| 892 | |
| 893 // The method is an entry that is always called by a C++ method not | |
| 894 // directly from compiled code. Compiled code will call the C++ method following. | |
| 895 // We can't allow async exception to be installed during exception processing. | |
| 896 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) | |
| 897 | |
| 898 // Do not confuse exception_oop with pending_exception. The exception_oop | |
| 899 // is only used to pass arguments into the method. Not for general | |
| 900 // exception handling. DO NOT CHANGE IT to use pending_exception, since | |
| 901 // the runtime stubs checks this on exit. | |
| 902 assert(thread->exception_oop() != NULL, "exception oop is found"); | |
| 903 address handler_address = NULL; | |
| 904 | |
| 905 Handle exception(thread, thread->exception_oop()); | |
| 906 | |
| 907 if (TraceExceptions) { | |
| 908 trace_exception(exception(), thread->exception_pc(), ""); | |
| 909 } | |
| 910 // for AbortVMOnException flag | |
| 911 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); | |
| 912 | |
| 913 #ifdef ASSERT | |
| 1142 | 914 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
| 0 | 915 // should throw an exception here |
| 916 ShouldNotReachHere(); | |
| 917 } | |
| 918 #endif | |
| 919 | |
| 920 | |
| 921 // new exception handling: this method is entered only from adapters | |
| 922 // exceptions from compiled java methods are handled in compiled code | |
| 923 // using rethrow node | |
| 924 | |
| 925 address pc = thread->exception_pc(); | |
| 926 nm = CodeCache::find_nmethod(pc); | |
| 927 assert(nm != NULL, "No NMethod found"); | |
| 928 if (nm->is_native_method()) { | |
| 929 fatal("Native mathod should not have path to exception handling"); | |
| 930 } else { | |
| 931 // we are switching to old paradigm: search for exception handler in caller_frame | |
| 932 // instead in exception handler of caller_frame.sender() | |
| 933 | |
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934 if (JvmtiExport::can_post_on_exceptions()) { |
| 0 | 935 // "Full-speed catching" is not necessary here, |
| 936 // since we're notifying the VM on every catch. | |
| 937 // Force deoptimization and the rest of the lookup | |
| 938 // will be fine. | |
| 939 deoptimize_caller_frame(thread, true); | |
| 940 } | |
| 941 | |
| 942 // Check the stack guard pages. If enabled, look for handler in this frame; | |
| 943 // otherwise, forcibly unwind the frame. | |
| 944 // | |
| 945 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. | |
| 946 bool force_unwind = !thread->reguard_stack(); | |
| 947 bool deopting = false; | |
| 948 if (nm->is_deopt_pc(pc)) { | |
| 949 deopting = true; | |
| 950 RegisterMap map(thread, false); | |
| 951 frame deoptee = thread->last_frame().sender(&map); | |
| 952 assert(deoptee.is_deoptimized_frame(), "must be deopted"); | |
| 953 // Adjust the pc back to the original throwing pc | |
| 954 pc = deoptee.pc(); | |
| 955 } | |
| 956 | |
| 957 // If we are forcing an unwind because of stack overflow then deopt is | |
| 958 // irrelevant sice we are throwing the frame away anyway. | |
| 959 | |
| 960 if (deopting && !force_unwind) { | |
| 961 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
| 962 } else { | |
| 963 | |
| 964 handler_address = | |
| 965 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); | |
| 966 | |
| 967 if (handler_address == NULL) { | |
| 968 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); | |
| 969 assert (handler_address != NULL, "must have compiled handler"); | |
| 970 // Update the exception cache only when the unwind was not forced. | |
| 971 if (!force_unwind) { | |
| 972 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); | |
| 973 } | |
| 974 } else { | |
| 975 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); | |
| 976 } | |
| 977 } | |
| 978 | |
| 979 thread->set_exception_pc(pc); | |
| 980 thread->set_exception_handler_pc(handler_address); | |
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981 |
| 1295 | 982 // Check if the exception PC is a MethodHandle call site. |
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983 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); |
| 0 | 984 } |
| 985 | |
| 986 // Restore correct return pc. Was saved above. | |
| 987 thread->set_exception_oop(exception()); | |
| 988 return handler_address; | |
| 989 | |
| 990 JRT_END | |
| 991 | |
| 992 // We are entering here from exception_blob | |
| 993 // If there is a compiled exception handler in this method, we will continue there; | |
| 994 // otherwise we will unwind the stack and continue at the caller of top frame method | |
| 995 // Note we enter without the usual JRT wrapper. We will call a helper routine that | |
| 996 // will do the normal VM entry. We do it this way so that we can see if the nmethod | |
| 997 // we looked up the handler for has been deoptimized in the meantime. If it has been | |
| 998 // we must not use the handler and instread return the deopt blob. | |
| 999 address OptoRuntime::handle_exception_C(JavaThread* thread) { | |
| 1000 // | |
| 1001 // We are in Java not VM and in debug mode we have a NoHandleMark | |
| 1002 // | |
| 1003 #ifndef PRODUCT | |
| 1004 SharedRuntime::_find_handler_ctr++; // find exception handler | |
| 1005 #endif | |
| 1006 debug_only(NoHandleMark __hm;) | |
| 1007 nmethod* nm = NULL; | |
| 1008 address handler_address = NULL; | |
| 1009 { | |
| 1010 // Enter the VM | |
| 1011 | |
| 1012 ResetNoHandleMark rnhm; | |
| 1013 handler_address = handle_exception_C_helper(thread, nm); | |
| 1014 } | |
| 1015 | |
| 1016 // Back in java: Use no oops, DON'T safepoint | |
| 1017 | |
| 1018 // Now check to see if the handler we are returning is in a now | |
| 1019 // deoptimized frame | |
| 1020 | |
| 1021 if (nm != NULL) { | |
| 1022 RegisterMap map(thread, false); | |
| 1023 frame caller = thread->last_frame().sender(&map); | |
| 1024 #ifdef ASSERT | |
| 1025 assert(caller.is_compiled_frame(), "must be"); | |
| 1026 #endif // ASSERT | |
| 1027 if (caller.is_deoptimized_frame()) { | |
| 1028 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); | |
| 1029 } | |
| 1030 } | |
| 1031 return handler_address; | |
| 1032 } | |
| 1033 | |
| 1034 //------------------------------rethrow---------------------------------------- | |
| 1035 // We get here after compiled code has executed a 'RethrowNode'. The callee | |
| 1036 // is either throwing or rethrowing an exception. The callee-save registers | |
| 1037 // have been restored, synchronized objects have been unlocked and the callee | |
| 1038 // stack frame has been removed. The return address was passed in. | |
| 1039 // Exception oop is passed as the 1st argument. This routine is then called | |
| 1040 // from the stub. On exit, we know where to jump in the caller's code. | |
| 1041 // After this C code exits, the stub will pop his frame and end in a jump | |
| 1042 // (instead of a return). We enter the caller's default handler. | |
| 1043 // | |
| 1044 // This must be JRT_LEAF: | |
| 1045 // - caller will not change its state as we cannot block on exit, | |
| 1046 // therefore raw_exception_handler_for_return_address is all it takes | |
| 1047 // to handle deoptimized blobs | |
| 1048 // | |
| 1049 // However, there needs to be a safepoint check in the middle! So compiled | |
| 1050 // safepoints are completely watertight. | |
| 1051 // | |
| 1052 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. | |
| 1053 // | |
| 1054 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* | |
| 1055 // | |
| 1056 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { | |
| 1057 #ifndef PRODUCT | |
| 1058 SharedRuntime::_rethrow_ctr++; // count rethrows | |
| 1059 #endif | |
| 1060 assert (exception != NULL, "should have thrown a NULLPointerException"); | |
| 1061 #ifdef ASSERT | |
| 1142 | 1062 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { |
| 0 | 1063 // should throw an exception here |
| 1064 ShouldNotReachHere(); | |
| 1065 } | |
| 1066 #endif | |
| 1067 | |
| 1068 thread->set_vm_result(exception); | |
| 1069 // Frame not compiled (handles deoptimization blob) | |
| 1295 | 1070 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); |
| 0 | 1071 } |
| 1072 | |
| 1073 | |
| 1074 const TypeFunc *OptoRuntime::rethrow_Type() { | |
| 1075 // create input type (domain) | |
| 1076 const Type **fields = TypeTuple::fields(1); | |
| 1077 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
| 1078 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
| 1079 | |
| 1080 // create result type (range) | |
| 1081 fields = TypeTuple::fields(1); | |
| 1082 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop | |
| 1083 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); | |
| 1084 | |
| 1085 return TypeFunc::make(domain, range); | |
| 1086 } | |
| 1087 | |
| 1088 | |
| 1089 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { | |
| 1090 // Deoptimize frame | |
| 1091 if (doit) { | |
| 1092 // Called from within the owner thread, so no need for safepoint | |
| 1093 RegisterMap reg_map(thread); | |
| 1094 frame stub_frame = thread->last_frame(); | |
| 1095 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); | |
| 1096 frame caller_frame = stub_frame.sender(®_map); | |
| 1097 | |
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1098 // bypass VM_DeoptimizeFrame and deoptimize the frame directly |
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1099 Deoptimization::deoptimize_frame(thread, caller_frame.id()); |
| 0 | 1100 } |
| 1101 } | |
| 1102 | |
| 1103 | |
| 1104 const TypeFunc *OptoRuntime::register_finalizer_Type() { | |
| 1105 // create input type (domain) | |
| 1106 const Type **fields = TypeTuple::fields(1); | |
| 1107 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver | |
| 1108 // // The JavaThread* is passed to each routine as the last argument | |
| 1109 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread | |
| 1110 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); | |
| 1111 | |
| 1112 // create result type (range) | |
| 1113 fields = TypeTuple::fields(0); | |
| 1114 | |
| 1115 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
| 1116 | |
| 1117 return TypeFunc::make(domain,range); | |
| 1118 } | |
| 1119 | |
| 1120 | |
| 1121 //----------------------------------------------------------------------------- | |
| 1122 // Dtrace support. entry and exit probes have the same signature | |
| 1123 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { | |
| 1124 // create input type (domain) | |
| 1125 const Type **fields = TypeTuple::fields(2); | |
| 1126 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
| 1127 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering | |
| 1128 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
| 1129 | |
| 1130 // create result type (range) | |
| 1131 fields = TypeTuple::fields(0); | |
| 1132 | |
| 1133 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
| 1134 | |
| 1135 return TypeFunc::make(domain,range); | |
| 1136 } | |
| 1137 | |
| 1138 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { | |
| 1139 // create input type (domain) | |
| 1140 const Type **fields = TypeTuple::fields(2); | |
| 1141 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage | |
| 1142 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object | |
| 1143 | |
| 1144 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); | |
| 1145 | |
| 1146 // create result type (range) | |
| 1147 fields = TypeTuple::fields(0); | |
| 1148 | |
| 1149 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); | |
| 1150 | |
| 1151 return TypeFunc::make(domain,range); | |
| 1152 } | |
| 1153 | |
| 1154 | |
| 1155 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) | |
| 1156 assert(obj->is_oop(), "must be a valid oop"); | |
| 1157 assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise"); | |
| 1158 instanceKlass::register_finalizer(instanceOop(obj), CHECK); | |
| 1159 JRT_END | |
| 1160 | |
| 1161 //----------------------------------------------------------------------------- | |
| 1162 | |
| 1163 NamedCounter * volatile OptoRuntime::_named_counters = NULL; | |
| 1164 | |
| 1165 // | |
| 1166 // dump the collected NamedCounters. | |
| 1167 // | |
| 1168 void OptoRuntime::print_named_counters() { | |
| 1169 int total_lock_count = 0; | |
| 1170 int eliminated_lock_count = 0; | |
| 1171 | |
| 1172 NamedCounter* c = _named_counters; | |
| 1173 while (c) { | |
| 1174 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { | |
| 1175 int count = c->count(); | |
| 1176 if (count > 0) { | |
| 1177 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; | |
| 1178 if (Verbose) { | |
| 1179 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); | |
| 1180 } | |
| 1181 total_lock_count += count; | |
| 1182 if (eliminated) { | |
| 1183 eliminated_lock_count += count; | |
| 1184 } | |
| 1185 } | |
| 1186 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { | |
| 1187 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); | |
| 1188 if (blc->nonzero()) { | |
| 1189 tty->print_cr("%s", c->name()); | |
| 1190 blc->print_on(tty); | |
| 1191 } | |
| 1192 } | |
| 1193 c = c->next(); | |
| 1194 } | |
| 1195 if (total_lock_count > 0) { | |
| 1196 tty->print_cr("dynamic locks: %d", total_lock_count); | |
| 1197 if (eliminated_lock_count) { | |
| 1198 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, | |
| 1199 (int)(eliminated_lock_count * 100.0 / total_lock_count)); | |
| 1200 } | |
| 1201 } | |
| 1202 } | |
| 1203 | |
| 1204 // | |
| 1205 // Allocate a new NamedCounter. The JVMState is used to generate the | |
| 1206 // name which consists of method@line for the inlining tree. | |
| 1207 // | |
| 1208 | |
| 1209 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { | |
| 1210 int max_depth = youngest_jvms->depth(); | |
| 1211 | |
| 1212 // Visit scopes from youngest to oldest. | |
| 1213 bool first = true; | |
| 1214 stringStream st; | |
| 1215 for (int depth = max_depth; depth >= 1; depth--) { | |
| 1216 JVMState* jvms = youngest_jvms->of_depth(depth); | |
| 1217 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; | |
| 1218 if (!first) { | |
| 1219 st.print(" "); | |
| 1220 } else { | |
| 1221 first = false; | |
| 1222 } | |
| 1223 int bci = jvms->bci(); | |
| 1224 if (bci < 0) bci = 0; | |
| 1225 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); | |
| 1226 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) | |
| 1227 } | |
| 1228 NamedCounter* c; | |
| 1229 if (tag == NamedCounter::BiasedLockingCounter) { | |
| 1230 c = new BiasedLockingNamedCounter(strdup(st.as_string())); | |
| 1231 } else { | |
| 1232 c = new NamedCounter(strdup(st.as_string()), tag); | |
| 1233 } | |
| 1234 | |
| 1235 // atomically add the new counter to the head of the list. We only | |
| 1236 // add counters so this is safe. | |
| 1237 NamedCounter* head; | |
| 1238 do { | |
| 1239 head = _named_counters; | |
| 1240 c->set_next(head); | |
| 1241 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); | |
| 1242 return c; | |
| 1243 } | |
| 1244 | |
| 1245 //----------------------------------------------------------------------------- | |
| 1246 // Non-product code | |
| 1247 #ifndef PRODUCT | |
| 1248 | |
| 1249 int trace_exception_counter = 0; | |
| 1250 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { | |
| 1251 ttyLocker ttyl; | |
| 1252 trace_exception_counter++; | |
| 1253 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); | |
| 1254 exception_oop->print_value(); | |
| 1255 tty->print(" in "); | |
| 1256 CodeBlob* blob = CodeCache::find_blob(exception_pc); | |
| 1257 if (blob->is_nmethod()) { | |
| 1258 ((nmethod*)blob)->method()->print_value(); | |
| 1259 } else if (blob->is_runtime_stub()) { | |
| 1260 tty->print("<runtime-stub>"); | |
| 1261 } else { | |
| 1262 tty->print("<unknown>"); | |
| 1263 } | |
| 1264 tty->print(" at " INTPTR_FORMAT, exception_pc); | |
| 1265 tty->print_cr("]"); | |
| 1266 } | |
| 1267 | |
| 1268 #endif // PRODUCT | |
| 1269 | |
| 1270 | |
| 1271 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 1272 // Called from call sites in compiled code with oop maps (actually safepoints) | |
| 1273 // Zaps dead locals in first java frame. | |
| 1274 // Is entry because may need to lock to generate oop maps | |
| 1275 // Currently, only used for compiler frames, but someday may be used | |
| 1276 // for interpreter frames, too. | |
| 1277 | |
| 1278 int OptoRuntime::ZapDeadCompiledLocals_count = 0; | |
| 1279 | |
| 1280 // avoid pointers to member funcs with these helpers | |
| 1281 static bool is_java_frame( frame* f) { return f->is_java_frame(); } | |
| 1282 static bool is_native_frame(frame* f) { return f->is_native_frame(); } | |
| 1283 | |
| 1284 | |
| 1285 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, | |
| 1286 bool (*is_this_the_right_frame_to_zap)(frame*)) { | |
| 1287 assert(JavaThread::current() == thread, "is this needed?"); | |
| 1288 | |
| 1289 if ( !ZapDeadCompiledLocals ) return; | |
| 1290 | |
| 1291 bool skip = false; | |
| 1292 | |
| 1293 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special | |
| 1294 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; | |
| 1295 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) | |
| 1296 warning("starting zapping after skipping"); | |
| 1297 | |
| 1298 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special | |
| 1299 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; | |
| 1300 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) | |
| 1301 warning("about to zap last zap"); | |
| 1302 | |
| 1303 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too | |
| 1304 | |
| 1305 if ( skip ) return; | |
| 1306 | |
| 1307 // find java frame and zap it | |
| 1308 | |
| 1309 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { | |
| 1310 if (is_this_the_right_frame_to_zap(sfs.current()) ) { | |
| 1311 sfs.current()->zap_dead_locals(thread, sfs.register_map()); | |
| 1312 return; | |
| 1313 } | |
| 1314 } | |
| 1315 warning("no frame found to zap in zap_dead_Java_locals_C"); | |
| 1316 } | |
| 1317 | |
| 1318 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) | |
| 1319 zap_dead_java_or_native_locals(thread, is_java_frame); | |
| 1320 JRT_END | |
| 1321 | |
| 1322 // The following does not work because for one thing, the | |
| 1323 // thread state is wrong; it expects java, but it is native. | |
| 605 | 1324 // Also, the invariants in a native stub are different and |
| 0 | 1325 // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
| 1326 // in there. | |
| 1327 // So for now, we do not zap in native stubs. | |
| 1328 | |
| 1329 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) | |
| 1330 zap_dead_java_or_native_locals(thread, is_native_frame); | |
| 1331 JRT_END | |
| 1332 | |
| 1333 # endif |