1 /* 2 * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 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 #if defined AD_MD_HPP 72 # include AD_MD_HPP 73 #elif defined TARGET_ARCH_MODEL_x86_32 74 # include "adfiles/ad_x86_32.hpp" 75 #elif defined TARGET_ARCH_MODEL_x86_64 76 # include "adfiles/ad_x86_64.hpp" 77 #elif defined TARGET_ARCH_MODEL_sparc 78 # include "adfiles/ad_sparc.hpp" 79 #elif defined TARGET_ARCH_MODEL_zero 80 # include "adfiles/ad_zero.hpp" 81 #elif defined TARGET_ARCH_MODEL_ppc_64 82 # include "adfiles/ad_ppc_64.hpp" 83 #endif 84 85 86 // For debugging purposes: 87 // To force FullGCALot inside a runtime function, add the following two lines 88 // 89 // Universe::release_fullgc_alot_dummy(); 90 // MarkSweep::invoke(0, "Debugging"); 91 // 92 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 93 94 95 96 97 // Compiled code entry points 98 address OptoRuntime::_new_instance_Java = NULL; 99 address OptoRuntime::_new_array_Java = NULL; 100 address OptoRuntime::_new_array_nozero_Java = NULL; 101 address OptoRuntime::_multianewarray2_Java = NULL; 102 address OptoRuntime::_multianewarray3_Java = NULL; 103 address OptoRuntime::_multianewarray4_Java = NULL; 104 address OptoRuntime::_multianewarray5_Java = NULL; 105 address OptoRuntime::_multianewarrayN_Java = NULL; 106 address OptoRuntime::_g1_wb_pre_Java = NULL; 107 address OptoRuntime::_g1_wb_post_Java = NULL; 108 address OptoRuntime::_vtable_must_compile_Java = NULL; 109 address OptoRuntime::_complete_monitor_locking_Java = NULL; 110 address OptoRuntime::_rethrow_Java = NULL; 111 112 address OptoRuntime::_slow_arraycopy_Java = NULL; 113 address OptoRuntime::_register_finalizer_Java = NULL; 114 115 # ifdef ENABLE_ZAP_DEAD_LOCALS 116 address OptoRuntime::_zap_dead_Java_locals_Java = NULL; 117 address OptoRuntime::_zap_dead_native_locals_Java = NULL; 118 # endif 119 120 ExceptionBlob* OptoRuntime::_exception_blob; 121 122 RuntimeStub* OptoRuntime::_complete_monitor_unlocking_wrapper; 123 124 // This should be called in an assertion at the start of OptoRuntime routines 125 // which are entered from compiled code (all of them) 126 #ifdef ASSERT 127 static bool check_compiled_frame(JavaThread* thread) { 128 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); 129 RegisterMap map(thread, false); 130 frame caller = thread->last_frame().sender(&map); 131 assert(caller.is_compiled_frame(), "not being called from compiled like code"); 132 return true; 133 } 134 #endif // ASSERT 135 136 137 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ 138 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc); \ 139 if (var == NULL) { return false; } 140 141 bool OptoRuntime::generate(ciEnv* env) { 142 143 generate_exception_blob(); 144 145 generate_complete_monitor_unlocking_wrapper(); 146 147 // Note: tls: Means fetching the return oop out of the thread-local storage 148 // 149 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc 150 // ------------------------------------------------------------------------------------------------------------------------------- 151 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); 152 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); 153 gen(env, _new_array_nozero_Java , new_array_Type , new_array_nozero_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); 158 gen(env, _multianewarrayN_Java , multianewarrayN_Type , multianewarrayN_C , 0 , true , false, false); 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); 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 return true; 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. 210 211 void OptoRuntime::new_store_pre_barrier(JavaThread* thread) { 212 // After any safepoint, just before going back to compiled code, 213 // we inform the GC that we will be doing initializing writes to 214 // this object in the future without emitting card-marks, so 215 // GC may take any compensating steps. 216 // NOTE: Keep this code consistent with GraphKit::store_barrier. 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"); 223 // GC may decide to give back a safer copy of new_obj. 224 new_obj = Universe::heap()->new_store_pre_barrier(thread, new_obj); 225 thread->set_vm_result(new_obj); 226 } 227 228 // object allocation 229 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(Klass* 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->layout_helper(); 238 if (Klass::layout_helper_needs_slow_path(lh) || !InstanceKlass::cast(klass)->is_initialized()) { 239 Handle holder(THREAD, klass->klass_holder()); // keep the klass alive 240 klass->check_valid_for_instantiation(false, THREAD); 241 if (!HAS_PENDING_EXCEPTION) { 242 InstanceKlass::cast(klass)->initialize(THREAD); 243 } 244 } 245 246 if (!HAS_PENDING_EXCEPTION) { 247 // Scavenge and allocate an instance. 248 Handle holder(THREAD, klass->klass_holder()); // keep the klass alive 249 oop result = InstanceKlass::cast(klass)->allocate_instance(THREAD); 250 thread->set_vm_result(result); 251 252 // Pass oops back through thread local storage. Our apparent type to Java 253 // is that we return an oop, but we can block on exit from this routine and 254 // a GC can trash the oop in C's return register. The generated stub will 255 // fetch the oop from TLS after any possible GC. 256 } 257 258 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 259 JRT_BLOCK_END; 260 261 if (GraphKit::use_ReduceInitialCardMarks()) { 262 // inform GC that we won't do card marks for initializing writes. 263 new_store_pre_barrier(thread); 264 } 265 JRT_END 266 267 268 // array allocation 269 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(Klass* array_type, int len, JavaThread *thread)) 270 JRT_BLOCK; 271 #ifndef PRODUCT 272 SharedRuntime::_new_array_ctr++; // new array requires GC 273 #endif 274 assert(check_compiled_frame(thread), "incorrect caller"); 275 276 // Scavenge and allocate an instance. 277 oop result; 278 279 if (array_type->oop_is_typeArray()) { 280 // The oopFactory likes to work with the element type. 281 // (We could bypass the oopFactory, since it doesn't add much value.) 282 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); 283 result = oopFactory::new_typeArray(elem_type, len, THREAD); 284 } else { 285 // Although the oopFactory likes to work with the elem_type, 286 // the compiler prefers the array_type, since it must already have 287 // that latter value in hand for the fast path. 288 Handle holder(THREAD, array_type->klass_holder()); // keep the array klass alive 289 Klass* elem_type = ObjArrayKlass::cast(array_type)->element_klass(); 290 result = oopFactory::new_objArray(elem_type, len, THREAD); 291 } 292 293 // Pass oops back through thread local storage. Our apparent type to Java 294 // is that we return an oop, but we can block on exit from this routine and 295 // a GC can trash the oop in C's return register. The generated stub will 296 // fetch the oop from TLS after any possible GC. 297 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 298 thread->set_vm_result(result); 299 JRT_BLOCK_END; 300 301 if (GraphKit::use_ReduceInitialCardMarks()) { 302 // inform GC that we won't do card marks for initializing writes. 303 new_store_pre_barrier(thread); 304 } 305 JRT_END 306 307 // array allocation without zeroing 308 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_nozero_C(Klass* array_type, int len, JavaThread *thread)) 309 JRT_BLOCK; 310 #ifndef PRODUCT 311 SharedRuntime::_new_array_ctr++; // new array requires GC 312 #endif 313 assert(check_compiled_frame(thread), "incorrect caller"); 314 315 // Scavenge and allocate an instance. 316 oop result; 317 318 assert(array_type->oop_is_typeArray(), "should be called only for type array"); 319 // The oopFactory likes to work with the element type. 320 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); 321 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD); 322 323 // Pass oops back through thread local storage. Our apparent type to Java 324 // is that we return an oop, but we can block on exit from this routine and 325 // a GC can trash the oop in C's return register. The generated stub will 326 // fetch the oop from TLS after any possible GC. 327 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 328 thread->set_vm_result(result); 329 JRT_BLOCK_END; 330 331 if (GraphKit::use_ReduceInitialCardMarks()) { 332 // inform GC that we won't do card marks for initializing writes. 333 new_store_pre_barrier(thread); 334 } 335 336 oop result = thread->vm_result(); 337 if ((len > 0) && (result != NULL) && 338 is_deoptimized_caller_frame(thread)) { 339 // Zero array here if the caller is deoptimized. 340 int size = ((typeArrayOop)result)->object_size(); 341 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type(); 342 const size_t hs = arrayOopDesc::header_size(elem_type); 343 // Align to next 8 bytes to avoid trashing arrays's length. 344 const size_t aligned_hs = align_object_offset(hs); 345 HeapWord* obj = (HeapWord*)result; 346 if (aligned_hs > hs) { 347 Copy::zero_to_words(obj+hs, aligned_hs-hs); 348 } 349 // Optimized zeroing. 350 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs); 351 } 352 353 JRT_END 354 355 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. 356 357 // multianewarray for 2 dimensions 358 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(Klass* elem_type, int len1, int len2, JavaThread *thread)) 359 #ifndef PRODUCT 360 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension 361 #endif 362 assert(check_compiled_frame(thread), "incorrect caller"); 363 assert(elem_type->is_klass(), "not a class"); 364 jint dims[2]; 365 dims[0] = len1; 366 dims[1] = len2; 367 Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive 368 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); 369 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 370 thread->set_vm_result(obj); 371 JRT_END 372 373 // multianewarray for 3 dimensions 374 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(Klass* elem_type, int len1, int len2, int len3, JavaThread *thread)) 375 #ifndef PRODUCT 376 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension 377 #endif 378 assert(check_compiled_frame(thread), "incorrect caller"); 379 assert(elem_type->is_klass(), "not a class"); 380 jint dims[3]; 381 dims[0] = len1; 382 dims[1] = len2; 383 dims[2] = len3; 384 Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive 385 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); 386 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 387 thread->set_vm_result(obj); 388 JRT_END 389 390 // multianewarray for 4 dimensions 391 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(Klass* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) 392 #ifndef PRODUCT 393 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension 394 #endif 395 assert(check_compiled_frame(thread), "incorrect caller"); 396 assert(elem_type->is_klass(), "not a class"); 397 jint dims[4]; 398 dims[0] = len1; 399 dims[1] = len2; 400 dims[2] = len3; 401 dims[3] = len4; 402 Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive 403 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); 404 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 405 thread->set_vm_result(obj); 406 JRT_END 407 408 // multianewarray for 5 dimensions 409 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(Klass* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) 410 #ifndef PRODUCT 411 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension 412 #endif 413 assert(check_compiled_frame(thread), "incorrect caller"); 414 assert(elem_type->is_klass(), "not a class"); 415 jint dims[5]; 416 dims[0] = len1; 417 dims[1] = len2; 418 dims[2] = len3; 419 dims[3] = len4; 420 dims[4] = len5; 421 Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive 422 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); 423 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 424 thread->set_vm_result(obj); 425 JRT_END 426 427 JRT_ENTRY(void, OptoRuntime::multianewarrayN_C(Klass* elem_type, arrayOopDesc* dims, JavaThread *thread)) 428 assert(check_compiled_frame(thread), "incorrect caller"); 429 assert(elem_type->is_klass(), "not a class"); 430 assert(oop(dims)->is_typeArray(), "not an array"); 431 432 ResourceMark rm; 433 jint len = dims->length(); 434 assert(len > 0, "Dimensions array should contain data"); 435 jint *j_dims = typeArrayOop(dims)->int_at_addr(0); 436 jint *c_dims = NEW_RESOURCE_ARRAY(jint, len); 437 Copy::conjoint_jints_atomic(j_dims, c_dims, len); 438 439 Handle holder(THREAD, elem_type->klass_holder()); // keep the klass alive 440 oop obj = ArrayKlass::cast(elem_type)->multi_allocate(len, c_dims, THREAD); 441 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); 442 thread->set_vm_result(obj); 443 JRT_END 444 445 446 const TypeFunc *OptoRuntime::new_instance_Type() { 447 // create input type (domain) 448 const Type **fields = TypeTuple::fields(1); 449 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated 450 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); 451 452 // create result type (range) 453 fields = TypeTuple::fields(1); 454 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop 455 456 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 457 458 return TypeFunc::make(domain, range); 459 } 460 461 462 const TypeFunc *OptoRuntime::athrow_Type() { 463 // create input type (domain) 464 const Type **fields = TypeTuple::fields(1); 465 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated 466 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); 467 468 // create result type (range) 469 fields = TypeTuple::fields(0); 470 471 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); 472 473 return TypeFunc::make(domain, range); 474 } 475 476 477 const TypeFunc *OptoRuntime::new_array_Type() { 478 // create input type (domain) 479 const Type **fields = TypeTuple::fields(2); 480 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass 481 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size 482 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 483 484 // create result type (range) 485 fields = TypeTuple::fields(1); 486 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop 487 488 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 489 490 return TypeFunc::make(domain, range); 491 } 492 493 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { 494 // create input type (domain) 495 const int nargs = ndim + 1; 496 const Type **fields = TypeTuple::fields(nargs); 497 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass 498 for( int i = 1; i < nargs; i++ ) 499 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size 500 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); 501 502 // create result type (range) 503 fields = TypeTuple::fields(1); 504 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop 505 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 506 507 return TypeFunc::make(domain, range); 508 } 509 510 const TypeFunc *OptoRuntime::multianewarray2_Type() { 511 return multianewarray_Type(2); 512 } 513 514 const TypeFunc *OptoRuntime::multianewarray3_Type() { 515 return multianewarray_Type(3); 516 } 517 518 const TypeFunc *OptoRuntime::multianewarray4_Type() { 519 return multianewarray_Type(4); 520 } 521 522 const TypeFunc *OptoRuntime::multianewarray5_Type() { 523 return multianewarray_Type(5); 524 } 525 526 const TypeFunc *OptoRuntime::multianewarrayN_Type() { 527 // create input type (domain) 528 const Type **fields = TypeTuple::fields(2); 529 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass 530 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // array of dim sizes 531 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 532 533 // create result type (range) 534 fields = TypeTuple::fields(1); 535 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop 536 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 537 538 return TypeFunc::make(domain, range); 539 } 540 541 const TypeFunc *OptoRuntime::g1_wb_pre_Type() { 542 const Type **fields = TypeTuple::fields(2); 543 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value 544 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread 545 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 546 547 // create result type (range) 548 fields = TypeTuple::fields(0); 549 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); 550 551 return TypeFunc::make(domain, range); 552 } 553 554 const TypeFunc *OptoRuntime::g1_wb_post_Type() { 555 556 const Type **fields = TypeTuple::fields(2); 557 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr 558 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread 559 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 560 561 // create result type (range) 562 fields = TypeTuple::fields(0); 563 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); 564 565 return TypeFunc::make(domain, range); 566 } 567 568 const TypeFunc *OptoRuntime::uncommon_trap_Type() { 569 // create input type (domain) 570 const Type **fields = TypeTuple::fields(1); 571 // Symbol* name of class to be loaded 572 fields[TypeFunc::Parms+0] = TypeInt::INT; 573 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); 574 575 // create result type (range) 576 fields = TypeTuple::fields(0); 577 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); 578 579 return TypeFunc::make(domain, range); 580 } 581 582 # ifdef ENABLE_ZAP_DEAD_LOCALS 583 // Type used for stub generation for zap_dead_locals. 584 // No inputs or outputs 585 const TypeFunc *OptoRuntime::zap_dead_locals_Type() { 586 // create input type (domain) 587 const Type **fields = TypeTuple::fields(0); 588 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); 589 590 // create result type (range) 591 fields = TypeTuple::fields(0); 592 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); 593 594 return TypeFunc::make(domain,range); 595 } 596 # endif 597 598 599 //----------------------------------------------------------------------------- 600 // Monitor Handling 601 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { 602 // create input type (domain) 603 const Type **fields = TypeTuple::fields(2); 604 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked 605 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock 606 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); 607 608 // create result type (range) 609 fields = TypeTuple::fields(0); 610 611 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); 612 613 return TypeFunc::make(domain,range); 614 } 615 616 617 //----------------------------------------------------------------------------- 618 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { 619 // create input type (domain) 620 const Type **fields = TypeTuple::fields(2); 621 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked 622 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock 623 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); 624 625 // create result type (range) 626 fields = TypeTuple::fields(0); 627 628 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); 629 630 return TypeFunc::make(domain,range); 631 } 632 633 const TypeFunc* OptoRuntime::flush_windows_Type() { 634 // create input type (domain) 635 const Type** fields = TypeTuple::fields(1); 636 fields[TypeFunc::Parms+0] = NULL; // void 637 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); 638 639 // create result type 640 fields = TypeTuple::fields(1); 641 fields[TypeFunc::Parms+0] = NULL; // void 642 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); 643 644 return TypeFunc::make(domain, range); 645 } 646 647 const TypeFunc* OptoRuntime::l2f_Type() { 648 // create input type (domain) 649 const Type **fields = TypeTuple::fields(2); 650 fields[TypeFunc::Parms+0] = TypeLong::LONG; 651 fields[TypeFunc::Parms+1] = Type::HALF; 652 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 653 654 // create result type (range) 655 fields = TypeTuple::fields(1); 656 fields[TypeFunc::Parms+0] = Type::FLOAT; 657 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 658 659 return TypeFunc::make(domain, range); 660 } 661 662 const TypeFunc* OptoRuntime::modf_Type() { 663 const Type **fields = TypeTuple::fields(2); 664 fields[TypeFunc::Parms+0] = Type::FLOAT; 665 fields[TypeFunc::Parms+1] = Type::FLOAT; 666 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 667 668 // create result type (range) 669 fields = TypeTuple::fields(1); 670 fields[TypeFunc::Parms+0] = Type::FLOAT; 671 672 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 673 674 return TypeFunc::make(domain, range); 675 } 676 677 const TypeFunc *OptoRuntime::Math_D_D_Type() { 678 // create input type (domain) 679 const Type **fields = TypeTuple::fields(2); 680 // Symbol* name of class to be loaded 681 fields[TypeFunc::Parms+0] = Type::DOUBLE; 682 fields[TypeFunc::Parms+1] = Type::HALF; 683 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 684 685 // create result type (range) 686 fields = TypeTuple::fields(2); 687 fields[TypeFunc::Parms+0] = Type::DOUBLE; 688 fields[TypeFunc::Parms+1] = Type::HALF; 689 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); 690 691 return TypeFunc::make(domain, range); 692 } 693 694 const TypeFunc* OptoRuntime::Math_DD_D_Type() { 695 const Type **fields = TypeTuple::fields(4); 696 fields[TypeFunc::Parms+0] = Type::DOUBLE; 697 fields[TypeFunc::Parms+1] = Type::HALF; 698 fields[TypeFunc::Parms+2] = Type::DOUBLE; 699 fields[TypeFunc::Parms+3] = Type::HALF; 700 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); 701 702 // create result type (range) 703 fields = TypeTuple::fields(2); 704 fields[TypeFunc::Parms+0] = Type::DOUBLE; 705 fields[TypeFunc::Parms+1] = Type::HALF; 706 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); 707 708 return TypeFunc::make(domain, range); 709 } 710 711 //-------------- currentTimeMillis, currentTimeNanos, etc 712 713 const TypeFunc* OptoRuntime::void_long_Type() { 714 // create input type (domain) 715 const Type **fields = TypeTuple::fields(0); 716 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); 717 718 // create result type (range) 719 fields = TypeTuple::fields(2); 720 fields[TypeFunc::Parms+0] = TypeLong::LONG; 721 fields[TypeFunc::Parms+1] = Type::HALF; 722 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); 723 724 return TypeFunc::make(domain, range); 725 } 726 727 // arraycopy stub variations: 728 enum ArrayCopyType { 729 ac_fast, // void(ptr, ptr, size_t) 730 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) 731 ac_slow, // void(ptr, int, ptr, int, int) 732 ac_generic // int(ptr, int, ptr, int, int) 733 }; 734 735 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { 736 // create input type (domain) 737 int num_args = (act == ac_fast ? 3 : 5); 738 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); 739 int argcnt = num_args; 740 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths 741 const Type** fields = TypeTuple::fields(argcnt); 742 int argp = TypeFunc::Parms; 743 fields[argp++] = TypePtr::NOTNULL; // src 744 if (num_size_args == 0) { 745 fields[argp++] = TypeInt::INT; // src_pos 746 } 747 fields[argp++] = TypePtr::NOTNULL; // dest 748 if (num_size_args == 0) { 749 fields[argp++] = TypeInt::INT; // dest_pos 750 fields[argp++] = TypeInt::INT; // length 751 } 752 while (num_size_args-- > 0) { 753 fields[argp++] = TypeX_X; // size in whatevers (size_t) 754 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length 755 } 756 if (act == ac_checkcast) { 757 fields[argp++] = TypePtr::NOTNULL; // super_klass 758 } 759 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); 760 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 761 762 // create result type if needed 763 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); 764 fields = TypeTuple::fields(1); 765 if (retcnt == 0) 766 fields[TypeFunc::Parms+0] = NULL; // void 767 else 768 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed 769 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); 770 return TypeFunc::make(domain, range); 771 } 772 773 const TypeFunc* OptoRuntime::fast_arraycopy_Type() { 774 // This signature is simple: Two base pointers and a size_t. 775 return make_arraycopy_Type(ac_fast); 776 } 777 778 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { 779 // An extension of fast_arraycopy_Type which adds type checking. 780 return make_arraycopy_Type(ac_checkcast); 781 } 782 783 const TypeFunc* OptoRuntime::slow_arraycopy_Type() { 784 // This signature is exactly the same as System.arraycopy. 785 // There are no intptr_t (int/long) arguments. 786 return make_arraycopy_Type(ac_slow); 787 } 788 789 const TypeFunc* OptoRuntime::generic_arraycopy_Type() { 790 // This signature is like System.arraycopy, except that it returns status. 791 return make_arraycopy_Type(ac_generic); 792 } 793 794 795 const TypeFunc* OptoRuntime::array_fill_Type() { 796 const Type** fields; 797 int argp = TypeFunc::Parms; 798 if (CCallingConventionRequiresIntsAsLongs) { 799 // create input type (domain): pointer, int, size_t 800 fields = TypeTuple::fields(3 LP64_ONLY( + 2)); 801 fields[argp++] = TypePtr::NOTNULL; 802 fields[argp++] = TypeLong::LONG; 803 fields[argp++] = Type::HALF; 804 } else { 805 // create input type (domain): pointer, int, size_t 806 fields = TypeTuple::fields(3 LP64_ONLY( + 1)); 807 fields[argp++] = TypePtr::NOTNULL; 808 fields[argp++] = TypeInt::INT; 809 } 810 fields[argp++] = TypeX_X; // size in whatevers (size_t) 811 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length 812 const TypeTuple *domain = TypeTuple::make(argp, fields); 813 814 // create result type 815 fields = TypeTuple::fields(1); 816 fields[TypeFunc::Parms+0] = NULL; // void 817 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); 818 819 return TypeFunc::make(domain, range); 820 } 821 822 // for aescrypt encrypt/decrypt operations, just three pointers returning void (length is constant) 823 const TypeFunc* OptoRuntime::aescrypt_block_Type() { 824 // create input type (domain) 825 int num_args = 3; 826 if (Matcher::pass_original_key_for_aes()) { 827 num_args = 4; 828 } 829 int argcnt = num_args; 830 const Type** fields = TypeTuple::fields(argcnt); 831 int argp = TypeFunc::Parms; 832 fields[argp++] = TypePtr::NOTNULL; // src 833 fields[argp++] = TypePtr::NOTNULL; // dest 834 fields[argp++] = TypePtr::NOTNULL; // k array 835 if (Matcher::pass_original_key_for_aes()) { 836 fields[argp++] = TypePtr::NOTNULL; // original k array 837 } 838 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 839 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 840 841 // no result type needed 842 fields = TypeTuple::fields(1); 843 fields[TypeFunc::Parms+0] = NULL; // void 844 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 845 return TypeFunc::make(domain, range); 846 } 847 848 /** 849 * int updateBytesCRC32(int crc, byte* b, int len) 850 */ 851 const TypeFunc* OptoRuntime::updateBytesCRC32_Type() { 852 // create input type (domain) 853 int num_args = 3; 854 int argcnt = num_args; 855 const Type** fields = TypeTuple::fields(argcnt); 856 int argp = TypeFunc::Parms; 857 fields[argp++] = TypeInt::INT; // crc 858 fields[argp++] = TypePtr::NOTNULL; // src 859 fields[argp++] = TypeInt::INT; // len 860 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 861 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 862 863 // result type needed 864 fields = TypeTuple::fields(1); 865 fields[TypeFunc::Parms+0] = TypeInt::INT; // crc result 866 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); 867 return TypeFunc::make(domain, range); 868 } 869 870 // for cipherBlockChaining calls of aescrypt encrypt/decrypt, four pointers and a length, returning int 871 const TypeFunc* OptoRuntime::cipherBlockChaining_aescrypt_Type() { 872 // create input type (domain) 873 int num_args = 5; 874 if (Matcher::pass_original_key_for_aes()) { 875 num_args = 6; 876 } 877 int argcnt = num_args; 878 const Type** fields = TypeTuple::fields(argcnt); 879 int argp = TypeFunc::Parms; 880 fields[argp++] = TypePtr::NOTNULL; // src 881 fields[argp++] = TypePtr::NOTNULL; // dest 882 fields[argp++] = TypePtr::NOTNULL; // k array 883 fields[argp++] = TypePtr::NOTNULL; // r array 884 fields[argp++] = TypeInt::INT; // src len 885 if (Matcher::pass_original_key_for_aes()) { 886 fields[argp++] = TypePtr::NOTNULL; // original k array 887 } 888 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 889 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 890 891 // returning cipher len (int) 892 fields = TypeTuple::fields(1); 893 fields[TypeFunc::Parms+0] = TypeInt::INT; 894 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); 895 return TypeFunc::make(domain, range); 896 } 897 898 /* 899 * void implCompress(byte[] buf, int ofs) 900 */ 901 const TypeFunc* OptoRuntime::sha_implCompress_Type() { 902 // create input type (domain) 903 int num_args = 2; 904 int argcnt = num_args; 905 const Type** fields = TypeTuple::fields(argcnt); 906 int argp = TypeFunc::Parms; 907 fields[argp++] = TypePtr::NOTNULL; // buf 908 fields[argp++] = TypePtr::NOTNULL; // state 909 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 910 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 911 912 // no result type needed 913 fields = TypeTuple::fields(1); 914 fields[TypeFunc::Parms+0] = NULL; // void 915 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 916 return TypeFunc::make(domain, range); 917 } 918 919 /* 920 * int implCompressMultiBlock(byte[] b, int ofs, int limit) 921 */ 922 const TypeFunc* OptoRuntime::digestBase_implCompressMB_Type() { 923 // create input type (domain) 924 int num_args = 4; 925 int argcnt = num_args; 926 const Type** fields = TypeTuple::fields(argcnt); 927 int argp = TypeFunc::Parms; 928 fields[argp++] = TypePtr::NOTNULL; // buf 929 fields[argp++] = TypePtr::NOTNULL; // state 930 fields[argp++] = TypeInt::INT; // ofs 931 fields[argp++] = TypeInt::INT; // limit 932 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 933 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 934 935 // returning ofs (int) 936 fields = TypeTuple::fields(1); 937 fields[TypeFunc::Parms+0] = TypeInt::INT; // ofs 938 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); 939 return TypeFunc::make(domain, range); 940 } 941 942 const TypeFunc* OptoRuntime::multiplyToLen_Type() { 943 // create input type (domain) 944 int num_args = 6; 945 int argcnt = num_args; 946 const Type** fields = TypeTuple::fields(argcnt); 947 int argp = TypeFunc::Parms; 948 fields[argp++] = TypePtr::NOTNULL; // x 949 fields[argp++] = TypeInt::INT; // xlen 950 fields[argp++] = TypePtr::NOTNULL; // y 951 fields[argp++] = TypeInt::INT; // ylen 952 fields[argp++] = TypePtr::NOTNULL; // z 953 fields[argp++] = TypeInt::INT; // zlen 954 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 955 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 956 957 // no result type needed 958 fields = TypeTuple::fields(1); 959 fields[TypeFunc::Parms+0] = NULL; 960 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 961 return TypeFunc::make(domain, range); 962 } 963 964 const TypeFunc* OptoRuntime::squareToLen_Type() { 965 // create input type (domain) 966 int num_args = 4; 967 int argcnt = num_args; 968 const Type** fields = TypeTuple::fields(argcnt); 969 int argp = TypeFunc::Parms; 970 fields[argp++] = TypePtr::NOTNULL; // x 971 fields[argp++] = TypeInt::INT; // len 972 fields[argp++] = TypePtr::NOTNULL; // z 973 fields[argp++] = TypeInt::INT; // zlen 974 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 975 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 976 977 // no result type needed 978 fields = TypeTuple::fields(1); 979 fields[TypeFunc::Parms+0] = NULL; 980 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 981 return TypeFunc::make(domain, range); 982 } 983 984 // for mulAdd calls, 2 pointers and 3 ints, returning int 985 const TypeFunc* OptoRuntime::mulAdd_Type() { 986 // create input type (domain) 987 int num_args = 5; 988 int argcnt = num_args; 989 const Type** fields = TypeTuple::fields(argcnt); 990 int argp = TypeFunc::Parms; 991 fields[argp++] = TypePtr::NOTNULL; // out 992 fields[argp++] = TypePtr::NOTNULL; // in 993 fields[argp++] = TypeInt::INT; // offset 994 fields[argp++] = TypeInt::INT; // len 995 fields[argp++] = TypeInt::INT; // k 996 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 997 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 998 999 // returning carry (int) 1000 fields = TypeTuple::fields(1); 1001 fields[TypeFunc::Parms+0] = TypeInt::INT; 1002 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields); 1003 return TypeFunc::make(domain, range); 1004 } 1005 1006 const TypeFunc* OptoRuntime::montgomeryMultiply_Type() { 1007 // create input type (domain) 1008 int num_args = 7; 1009 int argcnt = num_args; 1010 const Type** fields = TypeTuple::fields(argcnt); 1011 int argp = TypeFunc::Parms; 1012 fields[argp++] = TypePtr::NOTNULL; // a 1013 fields[argp++] = TypePtr::NOTNULL; // b 1014 fields[argp++] = TypePtr::NOTNULL; // n 1015 fields[argp++] = TypeInt::INT; // len 1016 fields[argp++] = TypeLong::LONG; // inv 1017 fields[argp++] = Type::HALF; 1018 fields[argp++] = TypePtr::NOTNULL; // result 1019 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 1020 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 1021 1022 // result type needed 1023 fields = TypeTuple::fields(1); 1024 fields[TypeFunc::Parms+0] = TypePtr::NOTNULL; 1025 1026 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 1027 return TypeFunc::make(domain, range); 1028 } 1029 1030 const TypeFunc* OptoRuntime::montgomerySquare_Type() { 1031 // create input type (domain) 1032 int num_args = 6; 1033 int argcnt = num_args; 1034 const Type** fields = TypeTuple::fields(argcnt); 1035 int argp = TypeFunc::Parms; 1036 fields[argp++] = TypePtr::NOTNULL; // a 1037 fields[argp++] = TypePtr::NOTNULL; // n 1038 fields[argp++] = TypeInt::INT; // len 1039 fields[argp++] = TypeLong::LONG; // inv 1040 fields[argp++] = Type::HALF; 1041 fields[argp++] = TypePtr::NOTNULL; // result 1042 assert(argp == TypeFunc::Parms+argcnt, "correct decoding"); 1043 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); 1044 1045 // result type needed 1046 fields = TypeTuple::fields(1); 1047 fields[TypeFunc::Parms+0] = TypePtr::NOTNULL; 1048 1049 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields); 1050 return TypeFunc::make(domain, range); 1051 } 1052 1053 1054 //------------- Interpreter state access for on stack replacement 1055 const TypeFunc* OptoRuntime::osr_end_Type() { 1056 // create input type (domain) 1057 const Type **fields = TypeTuple::fields(1); 1058 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf 1059 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); 1060 1061 // create result type 1062 fields = TypeTuple::fields(1); 1063 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop 1064 fields[TypeFunc::Parms+0] = NULL; // void 1065 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); 1066 return TypeFunc::make(domain, range); 1067 } 1068 1069 //-------------- methodData update helpers 1070 1071 const TypeFunc* OptoRuntime::profile_receiver_type_Type() { 1072 // create input type (domain) 1073 const Type **fields = TypeTuple::fields(2); 1074 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer 1075 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop 1076 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); 1077 1078 // create result type 1079 fields = TypeTuple::fields(1); 1080 fields[TypeFunc::Parms+0] = NULL; // void 1081 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); 1082 return TypeFunc::make(domain,range); 1083 } 1084 1085 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) 1086 if (receiver == NULL) return; 1087 Klass* receiver_klass = receiver->klass(); 1088 1089 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); 1090 int empty_row = -1; // free row, if any is encountered 1091 1092 // ReceiverTypeData* vc = new ReceiverTypeData(mdp); 1093 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { 1094 // if (vc->receiver(row) == receiver_klass) 1095 int receiver_off = ReceiverTypeData::receiver_cell_index(row); 1096 intptr_t row_recv = *(mdp + receiver_off); 1097 if (row_recv == (intptr_t) receiver_klass) { 1098 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); 1099 int count_off = ReceiverTypeData::receiver_count_cell_index(row); 1100 *(mdp + count_off) += DataLayout::counter_increment; 1101 return; 1102 } else if (row_recv == 0) { 1103 // else if (vc->receiver(row) == NULL) 1104 empty_row = (int) row; 1105 } 1106 } 1107 1108 if (empty_row != -1) { 1109 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); 1110 // vc->set_receiver(empty_row, receiver_klass); 1111 *(mdp + receiver_off) = (intptr_t) receiver_klass; 1112 // vc->set_receiver_count(empty_row, DataLayout::counter_increment); 1113 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); 1114 *(mdp + count_off) = DataLayout::counter_increment; 1115 } else { 1116 // Receiver did not match any saved receiver and there is no empty row for it. 1117 // Increment total counter to indicate polymorphic case. 1118 intptr_t* count_p = (intptr_t*)(((byte*)(data)) + in_bytes(CounterData::count_offset())); 1119 *count_p += DataLayout::counter_increment; 1120 } 1121 JRT_END 1122 1123 //------------------------------------------------------------------------------------- 1124 // register policy 1125 1126 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { 1127 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); 1128 switch (register_save_policy[reg]) { 1129 case 'C': return false; //SOC 1130 case 'E': return true ; //SOE 1131 case 'N': return false; //NS 1132 case 'A': return false; //AS 1133 } 1134 ShouldNotReachHere(); 1135 return false; 1136 } 1137 1138 //----------------------------------------------------------------------- 1139 // Exceptions 1140 // 1141 1142 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; 1143 1144 // The method is an entry that is always called by a C++ method not 1145 // directly from compiled code. Compiled code will call the C++ method following. 1146 // We can't allow async exception to be installed during exception processing. 1147 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) 1148 1149 // Do not confuse exception_oop with pending_exception. The exception_oop 1150 // is only used to pass arguments into the method. Not for general 1151 // exception handling. DO NOT CHANGE IT to use pending_exception, since 1152 // the runtime stubs checks this on exit. 1153 assert(thread->exception_oop() != NULL, "exception oop is found"); 1154 address handler_address = NULL; 1155 1156 Handle exception(thread, thread->exception_oop()); 1157 address pc = thread->exception_pc(); 1158 1159 // Clear out the exception oop and pc since looking up an 1160 // exception handler can cause class loading, which might throw an 1161 // exception and those fields are expected to be clear during 1162 // normal bytecode execution. 1163 thread->clear_exception_oop_and_pc(); 1164 1165 if (TraceExceptions) { 1166 trace_exception(exception(), pc, ""); 1167 } 1168 1169 // for AbortVMOnException flag 1170 NOT_PRODUCT(Exceptions::debug_check_abort(exception)); 1171 1172 #ifdef ASSERT 1173 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { 1174 // should throw an exception here 1175 ShouldNotReachHere(); 1176 } 1177 #endif 1178 1179 // new exception handling: this method is entered only from adapters 1180 // exceptions from compiled java methods are handled in compiled code 1181 // using rethrow node 1182 1183 nm = CodeCache::find_nmethod(pc); 1184 assert(nm != NULL, "No NMethod found"); 1185 if (nm->is_native_method()) { 1186 fatal("Native method should not have path to exception handling"); 1187 } else { 1188 // we are switching to old paradigm: search for exception handler in caller_frame 1189 // instead in exception handler of caller_frame.sender() 1190 1191 if (JvmtiExport::can_post_on_exceptions()) { 1192 // "Full-speed catching" is not necessary here, 1193 // since we're notifying the VM on every catch. 1194 // Force deoptimization and the rest of the lookup 1195 // will be fine. 1196 deoptimize_caller_frame(thread); 1197 } 1198 1199 // Check the stack guard pages. If enabled, look for handler in this frame; 1200 // otherwise, forcibly unwind the frame. 1201 // 1202 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. 1203 bool force_unwind = !thread->reguard_stack(); 1204 bool deopting = false; 1205 if (nm->is_deopt_pc(pc)) { 1206 deopting = true; 1207 RegisterMap map(thread, false); 1208 frame deoptee = thread->last_frame().sender(&map); 1209 assert(deoptee.is_deoptimized_frame(), "must be deopted"); 1210 // Adjust the pc back to the original throwing pc 1211 pc = deoptee.pc(); 1212 } 1213 1214 // If we are forcing an unwind because of stack overflow then deopt is 1215 // irrelevant since we are throwing the frame away anyway. 1216 1217 if (deopting && !force_unwind) { 1218 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); 1219 } else { 1220 1221 handler_address = 1222 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); 1223 1224 if (handler_address == NULL) { 1225 Handle original_exception(thread, exception()); 1226 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); 1227 assert (handler_address != NULL, "must have compiled handler"); 1228 // Update the exception cache only when the unwind was not forced 1229 // and there didn't happen another exception during the computation of the 1230 // compiled exception handler. 1231 if (!force_unwind && original_exception() == exception()) { 1232 nm->add_handler_for_exception_and_pc(exception,pc,handler_address); 1233 } 1234 } else { 1235 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); 1236 } 1237 } 1238 1239 thread->set_exception_pc(pc); 1240 thread->set_exception_handler_pc(handler_address); 1241 1242 // Check if the exception PC is a MethodHandle call site. 1243 thread->set_is_method_handle_return(nm->is_method_handle_return(pc)); 1244 } 1245 1246 // Restore correct return pc. Was saved above. 1247 thread->set_exception_oop(exception()); 1248 return handler_address; 1249 1250 JRT_END 1251 1252 // We are entering here from exception_blob 1253 // If there is a compiled exception handler in this method, we will continue there; 1254 // otherwise we will unwind the stack and continue at the caller of top frame method 1255 // Note we enter without the usual JRT wrapper. We will call a helper routine that 1256 // will do the normal VM entry. We do it this way so that we can see if the nmethod 1257 // we looked up the handler for has been deoptimized in the meantime. If it has been 1258 // we must not use the handler and instead return the deopt blob. 1259 address OptoRuntime::handle_exception_C(JavaThread* thread) { 1260 // 1261 // We are in Java not VM and in debug mode we have a NoHandleMark 1262 // 1263 #ifndef PRODUCT 1264 SharedRuntime::_find_handler_ctr++; // find exception handler 1265 #endif 1266 debug_only(NoHandleMark __hm;) 1267 nmethod* nm = NULL; 1268 address handler_address = NULL; 1269 { 1270 // Enter the VM 1271 1272 ResetNoHandleMark rnhm; 1273 handler_address = handle_exception_C_helper(thread, nm); 1274 } 1275 1276 // Back in java: Use no oops, DON'T safepoint 1277 1278 // Now check to see if the handler we are returning is in a now 1279 // deoptimized frame 1280 1281 if (nm != NULL) { 1282 RegisterMap map(thread, false); 1283 frame caller = thread->last_frame().sender(&map); 1284 #ifdef ASSERT 1285 assert(caller.is_compiled_frame(), "must be"); 1286 #endif // ASSERT 1287 if (caller.is_deoptimized_frame()) { 1288 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); 1289 } 1290 } 1291 return handler_address; 1292 } 1293 1294 //------------------------------rethrow---------------------------------------- 1295 // We get here after compiled code has executed a 'RethrowNode'. The callee 1296 // is either throwing or rethrowing an exception. The callee-save registers 1297 // have been restored, synchronized objects have been unlocked and the callee 1298 // stack frame has been removed. The return address was passed in. 1299 // Exception oop is passed as the 1st argument. This routine is then called 1300 // from the stub. On exit, we know where to jump in the caller's code. 1301 // After this C code exits, the stub will pop his frame and end in a jump 1302 // (instead of a return). We enter the caller's default handler. 1303 // 1304 // This must be JRT_LEAF: 1305 // - caller will not change its state as we cannot block on exit, 1306 // therefore raw_exception_handler_for_return_address is all it takes 1307 // to handle deoptimized blobs 1308 // 1309 // However, there needs to be a safepoint check in the middle! So compiled 1310 // safepoints are completely watertight. 1311 // 1312 // Thus, it cannot be a leaf since it contains the No_GC_Verifier. 1313 // 1314 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* 1315 // 1316 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { 1317 #ifndef PRODUCT 1318 SharedRuntime::_rethrow_ctr++; // count rethrows 1319 #endif 1320 assert (exception != NULL, "should have thrown a NULLPointerException"); 1321 #ifdef ASSERT 1322 if (!(exception->is_a(SystemDictionary::Throwable_klass()))) { 1323 // should throw an exception here 1324 ShouldNotReachHere(); 1325 } 1326 #endif 1327 1328 thread->set_vm_result(exception); 1329 // Frame not compiled (handles deoptimization blob) 1330 return SharedRuntime::raw_exception_handler_for_return_address(thread, ret_pc); 1331 } 1332 1333 1334 const TypeFunc *OptoRuntime::rethrow_Type() { 1335 // create input type (domain) 1336 const Type **fields = TypeTuple::fields(1); 1337 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop 1338 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); 1339 1340 // create result type (range) 1341 fields = TypeTuple::fields(1); 1342 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop 1343 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); 1344 1345 return TypeFunc::make(domain, range); 1346 } 1347 1348 1349 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { 1350 // Deoptimize the caller before continuing, as the compiled 1351 // exception handler table may not be valid. 1352 if (!StressCompiledExceptionHandlers && doit) { 1353 deoptimize_caller_frame(thread); 1354 } 1355 } 1356 1357 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread) { 1358 // Called from within the owner thread, so no need for safepoint 1359 RegisterMap reg_map(thread); 1360 frame stub_frame = thread->last_frame(); 1361 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); 1362 frame caller_frame = stub_frame.sender(®_map); 1363 1364 // Deoptimize the caller frame. 1365 Deoptimization::deoptimize_frame(thread, caller_frame.id()); 1366 } 1367 1368 1369 bool OptoRuntime::is_deoptimized_caller_frame(JavaThread *thread) { 1370 // Called from within the owner thread, so no need for safepoint 1371 RegisterMap reg_map(thread); 1372 frame stub_frame = thread->last_frame(); 1373 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); 1374 frame caller_frame = stub_frame.sender(®_map); 1375 return caller_frame.is_deoptimized_frame(); 1376 } 1377 1378 1379 const TypeFunc *OptoRuntime::register_finalizer_Type() { 1380 // create input type (domain) 1381 const Type **fields = TypeTuple::fields(1); 1382 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver 1383 // // The JavaThread* is passed to each routine as the last argument 1384 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread 1385 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); 1386 1387 // create result type (range) 1388 fields = TypeTuple::fields(0); 1389 1390 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); 1391 1392 return TypeFunc::make(domain,range); 1393 } 1394 1395 1396 //----------------------------------------------------------------------------- 1397 // Dtrace support. entry and exit probes have the same signature 1398 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { 1399 // create input type (domain) 1400 const Type **fields = TypeTuple::fields(2); 1401 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage 1402 fields[TypeFunc::Parms+1] = TypeMetadataPtr::BOTTOM; // Method*; Method we are entering 1403 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); 1404 1405 // create result type (range) 1406 fields = TypeTuple::fields(0); 1407 1408 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); 1409 1410 return TypeFunc::make(domain,range); 1411 } 1412 1413 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { 1414 // create input type (domain) 1415 const Type **fields = TypeTuple::fields(2); 1416 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage 1417 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object 1418 1419 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); 1420 1421 // create result type (range) 1422 fields = TypeTuple::fields(0); 1423 1424 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); 1425 1426 return TypeFunc::make(domain,range); 1427 } 1428 1429 1430 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) 1431 assert(obj->is_oop(), "must be a valid oop"); 1432 assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise"); 1433 InstanceKlass::register_finalizer(instanceOop(obj), CHECK); 1434 JRT_END 1435 1436 //----------------------------------------------------------------------------- 1437 1438 NamedCounter * volatile OptoRuntime::_named_counters = NULL; 1439 1440 // 1441 // dump the collected NamedCounters. 1442 // 1443 void OptoRuntime::print_named_counters() { 1444 int total_lock_count = 0; 1445 int eliminated_lock_count = 0; 1446 1447 NamedCounter* c = _named_counters; 1448 while (c) { 1449 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { 1450 int count = c->count(); 1451 if (count > 0) { 1452 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; 1453 if (Verbose) { 1454 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); 1455 } 1456 total_lock_count += count; 1457 if (eliminated) { 1458 eliminated_lock_count += count; 1459 } 1460 } 1461 } else if (c->tag() == NamedCounter::BiasedLockingCounter) { 1462 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); 1463 if (blc->nonzero()) { 1464 tty->print_cr("%s", c->name()); 1465 blc->print_on(tty); 1466 } 1467 #if INCLUDE_RTM_OPT 1468 } else if (c->tag() == NamedCounter::RTMLockingCounter) { 1469 RTMLockingCounters* rlc = ((RTMLockingNamedCounter*)c)->counters(); 1470 if (rlc->nonzero()) { 1471 tty->print_cr("%s", c->name()); 1472 rlc->print_on(tty); 1473 } 1474 #endif 1475 } 1476 c = c->next(); 1477 } 1478 if (total_lock_count > 0) { 1479 tty->print_cr("dynamic locks: %d", total_lock_count); 1480 if (eliminated_lock_count) { 1481 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, 1482 (int)(eliminated_lock_count * 100.0 / total_lock_count)); 1483 } 1484 } 1485 } 1486 1487 // 1488 // Allocate a new NamedCounter. The JVMState is used to generate the 1489 // name which consists of method@line for the inlining tree. 1490 // 1491 1492 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { 1493 int max_depth = youngest_jvms->depth(); 1494 1495 // Visit scopes from youngest to oldest. 1496 bool first = true; 1497 stringStream st; 1498 for (int depth = max_depth; depth >= 1; depth--) { 1499 JVMState* jvms = youngest_jvms->of_depth(depth); 1500 ciMethod* m = jvms->has_method() ? jvms->method() : NULL; 1501 if (!first) { 1502 st.print(" "); 1503 } else { 1504 first = false; 1505 } 1506 int bci = jvms->bci(); 1507 if (bci < 0) bci = 0; 1508 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); 1509 // To print linenumbers instead of bci use: m->line_number_from_bci(bci) 1510 } 1511 NamedCounter* c; 1512 if (tag == NamedCounter::BiasedLockingCounter) { 1513 c = new BiasedLockingNamedCounter(strdup(st.as_string())); 1514 } else if (tag == NamedCounter::RTMLockingCounter) { 1515 c = new RTMLockingNamedCounter(strdup(st.as_string())); 1516 } else { 1517 c = new NamedCounter(strdup(st.as_string()), tag); 1518 } 1519 1520 // atomically add the new counter to the head of the list. We only 1521 // add counters so this is safe. 1522 NamedCounter* head; 1523 do { 1524 c->set_next(NULL); 1525 head = _named_counters; 1526 c->set_next(head); 1527 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); 1528 return c; 1529 } 1530 1531 //----------------------------------------------------------------------------- 1532 // Non-product code 1533 #ifndef PRODUCT 1534 1535 int trace_exception_counter = 0; 1536 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { 1537 ttyLocker ttyl; 1538 trace_exception_counter++; 1539 tty->print("%d [Exception (%s): ", trace_exception_counter, msg); 1540 exception_oop->print_value(); 1541 tty->print(" in "); 1542 CodeBlob* blob = CodeCache::find_blob(exception_pc); 1543 if (blob->is_nmethod()) { 1544 nmethod* nm = blob->as_nmethod_or_null(); 1545 nm->method()->print_value(); 1546 } else if (blob->is_runtime_stub()) { 1547 tty->print("<runtime-stub>"); 1548 } else { 1549 tty->print("<unknown>"); 1550 } 1551 tty->print(" at " INTPTR_FORMAT, p2i(exception_pc)); 1552 tty->print_cr("]"); 1553 } 1554 1555 #endif // PRODUCT 1556 1557 1558 # ifdef ENABLE_ZAP_DEAD_LOCALS 1559 // Called from call sites in compiled code with oop maps (actually safepoints) 1560 // Zaps dead locals in first java frame. 1561 // Is entry because may need to lock to generate oop maps 1562 // Currently, only used for compiler frames, but someday may be used 1563 // for interpreter frames, too. 1564 1565 int OptoRuntime::ZapDeadCompiledLocals_count = 0; 1566 1567 // avoid pointers to member funcs with these helpers 1568 static bool is_java_frame( frame* f) { return f->is_java_frame(); } 1569 static bool is_native_frame(frame* f) { return f->is_native_frame(); } 1570 1571 1572 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, 1573 bool (*is_this_the_right_frame_to_zap)(frame*)) { 1574 assert(JavaThread::current() == thread, "is this needed?"); 1575 1576 if ( !ZapDeadCompiledLocals ) return; 1577 1578 bool skip = false; 1579 1580 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special 1581 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; 1582 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) 1583 warning("starting zapping after skipping"); 1584 1585 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special 1586 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; 1587 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) 1588 warning("about to zap last zap"); 1589 1590 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too 1591 1592 if ( skip ) return; 1593 1594 // find java frame and zap it 1595 1596 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { 1597 if (is_this_the_right_frame_to_zap(sfs.current()) ) { 1598 sfs.current()->zap_dead_locals(thread, sfs.register_map()); 1599 return; 1600 } 1601 } 1602 warning("no frame found to zap in zap_dead_Java_locals_C"); 1603 } 1604 1605 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) 1606 zap_dead_java_or_native_locals(thread, is_java_frame); 1607 JRT_END 1608 1609 // The following does not work because for one thing, the 1610 // thread state is wrong; it expects java, but it is native. 1611 // Also, the invariants in a native stub are different and 1612 // I'm not sure it is safe to have a MachCalRuntimeDirectNode 1613 // in there. 1614 // So for now, we do not zap in native stubs. 1615 1616 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) 1617 zap_dead_java_or_native_locals(thread, is_native_frame); 1618 JRT_END 1619 1620 # endif