sharedRuntime.hpp revision 342:37f87013dfd8
1/* 2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25class AdapterHandlerEntry; 26class vframeStream; 27 28// Runtime is the base class for various runtime interfaces 29// (InterpreterRuntime, CompilerRuntime, etc.). It provides 30// shared functionality such as exception forwarding (C++ to 31// Java exceptions), locking/unlocking mechanisms, statistical 32// information, etc. 33 34class SharedRuntime: AllStatic { 35 private: 36 static methodHandle resolve_sub_helper(JavaThread *thread, 37 bool is_virtual, 38 bool is_optimized, TRAPS); 39 40 // Shared stub locations 41 42 static RuntimeStub* _wrong_method_blob; 43 static RuntimeStub* _ic_miss_blob; 44 static RuntimeStub* _resolve_opt_virtual_call_blob; 45 static RuntimeStub* _resolve_virtual_call_blob; 46 static RuntimeStub* _resolve_static_call_blob; 47 48 static SafepointBlob* _polling_page_safepoint_handler_blob; 49 static SafepointBlob* _polling_page_return_handler_blob; 50#ifdef COMPILER2 51 static ExceptionBlob* _exception_blob; 52 static UncommonTrapBlob* _uncommon_trap_blob; 53#endif // COMPILER2 54 55#ifndef PRODUCT 56 57 // Counters 58 static int _nof_megamorphic_calls; // total # of megamorphic calls (through vtable) 59 60#endif // !PRODUCT 61 public: 62 63 // max bytes for each dtrace string parameter 64 enum { max_dtrace_string_size = 256 }; 65 66 // The following arithmetic routines are used on platforms that do 67 // not have machine instructions to implement their functionality. 68 // Do not remove these. 69 70 // long arithmetics 71 static jlong lmul(jlong y, jlong x); 72 static jlong ldiv(jlong y, jlong x); 73 static jlong lrem(jlong y, jlong x); 74 75 // float and double remainder 76 static jfloat frem(jfloat x, jfloat y); 77 static jdouble drem(jdouble x, jdouble y); 78 79 // float conversion (needs to set appropriate rounding mode) 80 static jint f2i (jfloat x); 81 static jlong f2l (jfloat x); 82 static jint d2i (jdouble x); 83 static jlong d2l (jdouble x); 84 static jfloat d2f (jdouble x); 85 static jfloat l2f (jlong x); 86 static jdouble l2d (jlong x); 87 88 // double trigonometrics and transcendentals 89 static jdouble dsin(jdouble x); 90 static jdouble dcos(jdouble x); 91 static jdouble dtan(jdouble x); 92 static jdouble dlog(jdouble x); 93 static jdouble dlog10(jdouble x); 94 static jdouble dexp(jdouble x); 95 static jdouble dpow(jdouble x, jdouble y); 96 97 98 // exception handling across interpreter/compiler boundaries 99 static address raw_exception_handler_for_return_address(address return_address); 100 static address exception_handler_for_return_address(address return_address); 101 102#ifndef SERIALGC 103 // G1 write barriers 104 static void g1_wb_pre(oopDesc* orig, JavaThread *thread); 105 static void g1_wb_post(void* card_addr, JavaThread* thread); 106#endif // !SERIALGC 107 108 // exception handling and implicit exceptions 109 static address compute_compiled_exc_handler(nmethod* nm, address ret_pc, Handle& exception, 110 bool force_unwind, bool top_frame_only); 111 enum ImplicitExceptionKind { 112 IMPLICIT_NULL, 113 IMPLICIT_DIVIDE_BY_ZERO, 114 STACK_OVERFLOW 115 }; 116 static void throw_AbstractMethodError(JavaThread* thread); 117 static void throw_IncompatibleClassChangeError(JavaThread* thread); 118 static void throw_ArithmeticException(JavaThread* thread); 119 static void throw_NullPointerException(JavaThread* thread); 120 static void throw_NullPointerException_at_call(JavaThread* thread); 121 static void throw_StackOverflowError(JavaThread* thread); 122 static address continuation_for_implicit_exception(JavaThread* thread, 123 address faulting_pc, 124 ImplicitExceptionKind exception_kind); 125 126 // Shared stub locations 127 static address get_poll_stub(address pc); 128 129 static address get_ic_miss_stub() { 130 assert(_ic_miss_blob!= NULL, "oops"); 131 return _ic_miss_blob->instructions_begin(); 132 } 133 134 static address get_handle_wrong_method_stub() { 135 assert(_wrong_method_blob!= NULL, "oops"); 136 return _wrong_method_blob->instructions_begin(); 137 } 138 139#ifdef COMPILER2 140 static void generate_uncommon_trap_blob(void); 141 static UncommonTrapBlob* uncommon_trap_blob() { return _uncommon_trap_blob; } 142#endif // COMPILER2 143 144 static address get_resolve_opt_virtual_call_stub(){ 145 assert(_resolve_opt_virtual_call_blob != NULL, "oops"); 146 return _resolve_opt_virtual_call_blob->instructions_begin(); 147 } 148 static address get_resolve_virtual_call_stub() { 149 assert(_resolve_virtual_call_blob != NULL, "oops"); 150 return _resolve_virtual_call_blob->instructions_begin(); 151 } 152 static address get_resolve_static_call_stub() { 153 assert(_resolve_static_call_blob != NULL, "oops"); 154 return _resolve_static_call_blob->instructions_begin(); 155 } 156 157 static SafepointBlob* polling_page_return_handler_blob() { return _polling_page_return_handler_blob; } 158 static SafepointBlob* polling_page_safepoint_handler_blob() { return _polling_page_safepoint_handler_blob; } 159 160 // Counters 161#ifndef PRODUCT 162 static address nof_megamorphic_calls_addr() { return (address)&_nof_megamorphic_calls; } 163#endif // PRODUCT 164 165 // Helper routine for full-speed JVMTI exception throwing support 166 static void throw_and_post_jvmti_exception(JavaThread *thread, Handle h_exception); 167 static void throw_and_post_jvmti_exception(JavaThread *thread, symbolOop name, const char *message = NULL); 168 169 // To be used as the entry point for unresolved native methods. 170 static address native_method_throw_unsatisfied_link_error_entry(); 171 172 // bytecode tracing is only used by the TraceBytecodes 173 static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0; 174 175 // Used to back off a spin lock that is under heavy contention 176 static void yield_all(JavaThread* thread, int attempts = 0); 177 178 static oop retrieve_receiver( symbolHandle sig, frame caller ); 179 180 static void verify_caller_frame(frame caller_frame, methodHandle callee_method) PRODUCT_RETURN; 181 static methodHandle find_callee_method_inside_interpreter(frame caller_frame, methodHandle caller_method, int bci) PRODUCT_RETURN_(return methodHandle();); 182 183 static void register_finalizer(JavaThread* thread, oopDesc* obj); 184 185 // dtrace notifications 186 static int dtrace_object_alloc(oopDesc* o); 187 static int dtrace_object_alloc_base(Thread* thread, oopDesc* o); 188 static int dtrace_method_entry(JavaThread* thread, methodOopDesc* m); 189 static int dtrace_method_exit(JavaThread* thread, methodOopDesc* m); 190 191 // Utility method for retrieving the Java thread id, returns 0 if the 192 // thread is not a well formed Java thread. 193 static jlong get_java_tid(Thread* thread); 194 195 196 // used by native wrappers to reenable yellow if overflow happened in native code 197 static void reguard_yellow_pages(); 198 199 /** 200 * Fill in the "X cannot be cast to a Y" message for ClassCastException 201 * 202 * @param thr the current thread 203 * @param name the name of the class of the object attempted to be cast 204 * @return the dynamically allocated exception message (must be freed 205 * by the caller using a resource mark) 206 * 207 * BCP must refer to the current 'checkcast' opcode for the frame 208 * on top of the stack. 209 * The caller (or one of it's callers) must use a ResourceMark 210 * in order to correctly free the result. 211 */ 212 static char* generate_class_cast_message(JavaThread* thr, const char* name); 213 214 /** 215 * Fill in the "X cannot be cast to a Y" message for ClassCastException 216 * 217 * @param name the name of the class of the object attempted to be cast 218 * @param klass the name of the target klass attempt 219 * @return the dynamically allocated exception message (must be freed 220 * by the caller using a resource mark) 221 * 222 * This version does not require access the frame, so it can be called 223 * from interpreted code 224 * The caller (or one of it's callers) must use a ResourceMark 225 * in order to correctly free the result. 226 */ 227 static char* generate_class_cast_message(const char* name, const char* klass); 228 229 // Resolves a call site- may patch in the destination of the call into the 230 // compiled code. 231 static methodHandle resolve_helper(JavaThread *thread, 232 bool is_virtual, 233 bool is_optimized, TRAPS); 234 235 static void generate_stubs(void); 236 237 private: 238 // deopt blob 239 static void generate_deopt_blob(void); 240 static DeoptimizationBlob* _deopt_blob; 241 242 public: 243 static DeoptimizationBlob* deopt_blob(void) { return _deopt_blob; } 244 245 // Resets a call-site in compiled code so it will get resolved again. 246 static methodHandle reresolve_call_site(JavaThread *thread, TRAPS); 247 248 // In the code prolog, if the klass comparison fails, the inline cache 249 // misses and the call site is patched to megamorphic 250 static methodHandle handle_ic_miss_helper(JavaThread* thread, TRAPS); 251 252 // Find the method that called us. 253 static methodHandle find_callee_method(JavaThread* thread, TRAPS); 254 255 256 private: 257 static Handle find_callee_info(JavaThread* thread, 258 Bytecodes::Code& bc, 259 CallInfo& callinfo, TRAPS); 260 static Handle find_callee_info_helper(JavaThread* thread, 261 vframeStream& vfst, 262 Bytecodes::Code& bc, 263 CallInfo& callinfo, TRAPS); 264 265 static address clean_virtual_call_entry(); 266 static address clean_opt_virtual_call_entry(); 267 static address clean_static_call_entry(); 268 269 public: 270 271 // Read the array of BasicTypes from a Java signature, and compute where 272 // compiled Java code would like to put the results. Values in reg_lo and 273 // reg_hi refer to 4-byte quantities. Values less than SharedInfo::stack0 are 274 // registers, those above refer to 4-byte stack slots. All stack slots are 275 // based off of the window top. SharedInfo::stack0 refers to the first usable 276 // slot in the bottom of the frame. SharedInfo::stack0+1 refers to the memory word 277 // 4-bytes higher. So for sparc because the register window save area is at 278 // the bottom of the frame the first 16 words will be skipped and SharedInfo::stack0 279 // will be just above it. ( 280 // return value is the maximum number of VMReg stack slots the convention will use. 281 static int java_calling_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed, int is_outgoing); 282 283 // Ditto except for calling C 284 static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, int total_args_passed); 285 286 // Generate I2C and C2I adapters. These adapters are simple argument marshalling 287 // blobs. Unlike adapters in the tiger and earlier releases the code in these 288 // blobs does not create a new frame and are therefore virtually invisible 289 // to the stack walking code. In general these blobs extend the callers stack 290 // as needed for the conversion of argument locations. 291 292 // When calling a c2i blob the code will always call the interpreter even if 293 // by the time we reach the blob there is compiled code available. This allows 294 // the blob to pass the incoming stack pointer (the sender sp) in a known 295 // location for the interpreter to record. This is used by the frame code 296 // to correct the sender code to match up with the stack pointer when the 297 // thread left the compiled code. In addition it allows the interpreter 298 // to remove the space the c2i adapter allocated to do it argument conversion. 299 300 // Although a c2i blob will always run interpreted even if compiled code is 301 // present if we see that compiled code is present the compiled call site 302 // will be patched/re-resolved so that later calls will run compiled. 303 304 // Aditionally a c2i blob need to have a unverified entry because it can be reached 305 // in situations where the call site is an inlined cache site and may go megamorphic. 306 307 // A i2c adapter is simpler than the c2i adapter. This is because it is assumed 308 // that the interpreter before it does any call dispatch will record the current 309 // stack pointer in the interpreter frame. On return it will restore the stack 310 // pointer as needed. This means the i2c adapter code doesn't need any special 311 // handshaking path with compiled code to keep the stack walking correct. 312 313 static AdapterHandlerEntry* generate_i2c2i_adapters(MacroAssembler *_masm, 314 int total_args_passed, 315 int max_arg, 316 const BasicType *sig_bt, 317 const VMRegPair *regs); 318 319 // OSR support 320 321 // OSR_migration_begin will extract the jvm state from an interpreter 322 // frame (locals, monitors) and store the data in a piece of C heap 323 // storage. This then allows the interpreter frame to be removed from the 324 // stack and the OSR nmethod to be called. That method is called with a 325 // pointer to the C heap storage. This pointer is the return value from 326 // OSR_migration_begin. 327 328 static intptr_t* OSR_migration_begin( JavaThread *thread); 329 330 // OSR_migration_end is a trivial routine. It is called after the compiled 331 // method has extracted the jvm state from the C heap that OSR_migration_begin 332 // created. It's entire job is to simply free this storage. 333 static void OSR_migration_end ( intptr_t* buf); 334 335 // Convert a sig into a calling convention register layout 336 // and find interesting things about it. 337 static VMRegPair* find_callee_arguments(symbolOop sig, bool is_static, int *arg_size); 338 static VMReg name_for_receiver(); 339 340 // "Top of Stack" slots that may be unused by the calling convention but must 341 // otherwise be preserved. 342 // On Intel these are not necessary and the value can be zero. 343 // On Sparc this describes the words reserved for storing a register window 344 // when an interrupt occurs. 345 static uint out_preserve_stack_slots(); 346 347 // Save and restore a native result 348 static void save_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots ); 349 static void restore_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots ); 350 351 // Generate a native wrapper for a given method. The method takes arguments 352 // in the Java compiled code convention, marshals them to the native 353 // convention (handlizes oops, etc), transitions to native, makes the call, 354 // returns to java state (possibly blocking), unhandlizes any result and 355 // returns. 356 static nmethod *generate_native_wrapper(MacroAssembler* masm, 357 methodHandle method, 358 int total_args_passed, 359 int max_arg, 360 BasicType *sig_bt, 361 VMRegPair *regs, 362 BasicType ret_type ); 363 364#ifdef HAVE_DTRACE_H 365 // Generate a dtrace wrapper for a given method. The method takes arguments 366 // in the Java compiled code convention, marshals them to the native 367 // convention (handlizes oops, etc), transitions to native, makes the call, 368 // returns to java state (possibly blocking), unhandlizes any result and 369 // returns. 370 static nmethod *generate_dtrace_nmethod(MacroAssembler* masm, 371 methodHandle method); 372 373 // dtrace support to convert a Java string to utf8 374 static void get_utf(oopDesc* src, address dst); 375#endif // def HAVE_DTRACE_H 376 377 // A compiled caller has just called the interpreter, but compiled code 378 // exists. Patch the caller so he no longer calls into the interpreter. 379 static void fixup_callers_callsite(methodOopDesc* moop, address ret_pc); 380 381 // Slow-path Locking and Unlocking 382 static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); 383 static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); 384 385 // Resolving of calls 386 static address resolve_static_call_C (JavaThread *thread); 387 static address resolve_virtual_call_C (JavaThread *thread); 388 static address resolve_opt_virtual_call_C(JavaThread *thread); 389 390 // arraycopy, the non-leaf version. (See StubRoutines for all the leaf calls.) 391 static void slow_arraycopy_C(oopDesc* src, jint src_pos, 392 oopDesc* dest, jint dest_pos, 393 jint length, JavaThread* thread); 394 395 // handle ic miss with caller being compiled code 396 // wrong method handling (inline cache misses, zombie methods) 397 static address handle_wrong_method(JavaThread* thread); 398 static address handle_wrong_method_ic_miss(JavaThread* thread); 399 400#ifndef PRODUCT 401 402 // Collect and print inline cache miss statistics 403 private: 404 enum { maxICmiss_count = 100 }; 405 static int _ICmiss_index; // length of IC miss histogram 406 static int _ICmiss_count[maxICmiss_count]; // miss counts 407 static address _ICmiss_at[maxICmiss_count]; // miss addresses 408 static void trace_ic_miss(address at); 409 410 public: 411 static int _monitor_enter_ctr; // monitor enter slow 412 static int _monitor_exit_ctr; // monitor exit slow 413 static int _throw_null_ctr; // throwing a null-pointer exception 414 static int _ic_miss_ctr; // total # of IC misses 415 static int _wrong_method_ctr; 416 static int _resolve_static_ctr; 417 static int _resolve_virtual_ctr; 418 static int _resolve_opt_virtual_ctr; 419 static int _implicit_null_throws; 420 static int _implicit_div0_throws; 421 422 static int _jbyte_array_copy_ctr; // Slow-path byte array copy 423 static int _jshort_array_copy_ctr; // Slow-path short array copy 424 static int _jint_array_copy_ctr; // Slow-path int array copy 425 static int _jlong_array_copy_ctr; // Slow-path long array copy 426 static int _oop_array_copy_ctr; // Slow-path oop array copy 427 static int _checkcast_array_copy_ctr; // Slow-path oop array copy, with cast 428 static int _unsafe_array_copy_ctr; // Slow-path includes alignment checks 429 static int _generic_array_copy_ctr; // Slow-path includes type decoding 430 static int _slow_array_copy_ctr; // Slow-path failed out to a method call 431 432 static int _new_instance_ctr; // 'new' object requires GC 433 static int _new_array_ctr; // 'new' array requires GC 434 static int _multi1_ctr, _multi2_ctr, _multi3_ctr, _multi4_ctr, _multi5_ctr; 435 static int _find_handler_ctr; // find exception handler 436 static int _rethrow_ctr; // rethrow exception 437 static int _mon_enter_stub_ctr; // monitor enter stub 438 static int _mon_exit_stub_ctr; // monitor exit stub 439 static int _mon_enter_ctr; // monitor enter slow 440 static int _mon_exit_ctr; // monitor exit slow 441 static int _partial_subtype_ctr; // SubRoutines::partial_subtype_check 442 443 // Statistics code 444 // stats for "normal" compiled calls (non-interface) 445 static int _nof_normal_calls; // total # of calls 446 static int _nof_optimized_calls; // total # of statically-bound calls 447 static int _nof_inlined_calls; // total # of inlined normal calls 448 static int _nof_static_calls; // total # of calls to static methods or super methods (invokespecial) 449 static int _nof_inlined_static_calls; // total # of inlined static calls 450 // stats for compiled interface calls 451 static int _nof_interface_calls; // total # of compiled calls 452 static int _nof_optimized_interface_calls; // total # of statically-bound interface calls 453 static int _nof_inlined_interface_calls; // total # of inlined interface calls 454 static int _nof_megamorphic_interface_calls;// total # of megamorphic interface calls 455 // stats for runtime exceptions 456 static int _nof_removable_exceptions; // total # of exceptions that could be replaced by branches due to inlining 457 458 public: // for compiler 459 static address nof_normal_calls_addr() { return (address)&_nof_normal_calls; } 460 static address nof_optimized_calls_addr() { return (address)&_nof_optimized_calls; } 461 static address nof_inlined_calls_addr() { return (address)&_nof_inlined_calls; } 462 static address nof_static_calls_addr() { return (address)&_nof_static_calls; } 463 static address nof_inlined_static_calls_addr() { return (address)&_nof_inlined_static_calls; } 464 static address nof_interface_calls_addr() { return (address)&_nof_interface_calls; } 465 static address nof_optimized_interface_calls_addr() { return (address)&_nof_optimized_interface_calls; } 466 static address nof_inlined_interface_calls_addr() { return (address)&_nof_inlined_interface_calls; } 467 static address nof_megamorphic_interface_calls_addr() { return (address)&_nof_megamorphic_interface_calls; } 468 static void print_call_statistics(int comp_total); 469 static void print_statistics(); 470 static void print_ic_miss_histogram(); 471 472#endif // PRODUCT 473}; 474 475 476// --------------------------------------------------------------------------- 477// Implementation of AdapterHandlerLibrary 478// 479// This library manages argument marshaling adapters and native wrappers. 480// There are 2 flavors of adapters: I2C and C2I. 481// 482// The I2C flavor takes a stock interpreted call setup, marshals the arguments 483// for a Java-compiled call, and jumps to Rmethod-> code()-> 484// instructions_begin(). It is broken to call it without an nmethod assigned. 485// The usual behavior is to lift any register arguments up out of the stack 486// and possibly re-pack the extra arguments to be contigious. I2C adapters 487// will save what the interpreter's stack pointer will be after arguments are 488// popped, then adjust the interpreter's frame size to force alignment and 489// possibly to repack the arguments. After re-packing, it jumps to the 490// compiled code start. There are no safepoints in this adapter code and a GC 491// cannot happen while marshaling is in progress. 492// 493// The C2I flavor takes a stock compiled call setup plus the target method in 494// Rmethod, marshals the arguments for an interpreted call and jumps to 495// Rmethod->_i2i_entry. On entry, the interpreted frame has not yet been 496// setup. Compiled frames are fixed-size and the args are likely not in the 497// right place. Hence all the args will likely be copied into the 498// interpreter's frame, forcing that frame to grow. The compiled frame's 499// outgoing stack args will be dead after the copy. 500// 501// Native wrappers, like adapters, marshal arguments. Unlike adapters they 502// also perform an offical frame push & pop. They have a call to the native 503// routine in their middles and end in a return (instead of ending in a jump). 504// The native wrappers are stored in real nmethods instead of the BufferBlobs 505// used by the adapters. The code generation happens here because it's very 506// similar to what the adapters have to do. 507 508class AdapterHandlerEntry : public CHeapObj { 509 private: 510 address _i2c_entry; 511 address _c2i_entry; 512 address _c2i_unverified_entry; 513 514 public: 515 516 // The name we give all buffer blobs 517 static const char* name; 518 519 AdapterHandlerEntry(address i2c_entry, address c2i_entry, address c2i_unverified_entry): 520 _i2c_entry(i2c_entry), 521 _c2i_entry(c2i_entry), 522 _c2i_unverified_entry(c2i_unverified_entry) { 523 } 524 525 address get_i2c_entry() { return _i2c_entry; } 526 address get_c2i_entry() { return _c2i_entry; } 527 address get_c2i_unverified_entry() { return _c2i_unverified_entry; } 528 529 void relocate(address new_base); 530#ifndef PRODUCT 531 void print(); 532#endif /* PRODUCT */ 533}; 534 535class AdapterHandlerLibrary: public AllStatic { 536 private: 537 static u_char _buffer[]; // the temporary code buffer 538 static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection 539 static GrowableArray<AdapterHandlerEntry*> * _handlers; // the corresponding handlers 540 enum { 541 AbstractMethodHandler = 1 // special handler for abstract methods 542 }; 543 static void initialize(); 544 static int get_create_adapter_index(methodHandle method); 545 static address get_i2c_entry( int index ) { 546 return get_entry(index)->get_i2c_entry(); 547 } 548 static address get_c2i_entry( int index ) { 549 return get_entry(index)->get_c2i_entry(); 550 } 551 static address get_c2i_unverified_entry( int index ) { 552 return get_entry(index)->get_c2i_unverified_entry(); 553 } 554 555 public: 556 static AdapterHandlerEntry* get_entry( int index ) { return _handlers->at(index); } 557 static nmethod* create_native_wrapper(methodHandle method); 558 static AdapterHandlerEntry* get_adapter(methodHandle method) { 559 return get_entry(get_create_adapter_index(method)); 560 } 561#ifdef HAVE_DTRACE_H 562 static nmethod* create_dtrace_nmethod (methodHandle method); 563#endif // HAVE_DTRACE_H 564 565#ifndef PRODUCT 566 static void print_handler(CodeBlob* b); 567 static bool contains(CodeBlob* b); 568#endif /* PRODUCT */ 569 570}; 571