1 /* 2 * Copyright (c) 1997, 2024, 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 #ifndef SHARE_RUNTIME_STUBROUTINES_HPP 26 #define SHARE_RUNTIME_STUBROUTINES_HPP 27 28 #include "code/codeBlob.hpp" 29 #include "memory/allocation.hpp" 30 #include "prims/vectorSupport.hpp" 31 #include "runtime/frame.hpp" 32 #include "runtime/mutexLocker.hpp" 33 #include "runtime/stubCodeGenerator.hpp" 34 #include "runtime/threadWXSetters.inline.hpp" 35 #include "utilities/macros.hpp" 36 37 // StubRoutines provides entry points to assembly routines used by 38 // compiled code and the run-time system. Platform-specific entry 39 // points are defined in the platform-specific inner class. 40 // 41 // Class scheme: 42 // 43 // platform-independent platform-dependent 44 // 45 // stubRoutines.hpp <-- included -- stubRoutines_<arch>.hpp 46 // ^ ^ 47 // | | 48 // implements implements 49 // | | 50 // | | 51 // stubRoutines.cpp stubRoutines_<arch>.cpp 52 // stubRoutines_<os_family>.cpp stubGenerator_<arch>.cpp 53 // stubRoutines_<os_arch>.cpp 54 // 55 // Note 1: The important thing is a clean decoupling between stub 56 // entry points (interfacing to the whole vm; i.e., 1-to-n 57 // relationship) and stub generators (interfacing only to 58 // the entry points implementation; i.e., 1-to-1 relationship). 59 // This significantly simplifies changes in the generator 60 // structure since the rest of the vm is not affected. 61 // 62 // Note 2: stubGenerator_<arch>.cpp contains a minimal portion of 63 // machine-independent code; namely the generator calls of 64 // the generator functions that are used platform-independently. 65 // However, it comes with the advantage of having a 1-file 66 // implementation of the generator. It should be fairly easy 67 // to change, should it become a problem later. 68 // 69 // Scheme for adding a new entry point: 70 // 71 // 1. determine if it's a platform-dependent or independent entry point 72 // a) if platform independent: make subsequent changes in the independent files 73 // b) if platform dependent: make subsequent changes in the dependent files 74 // 2. add a private instance variable holding the entry point address 75 // 3. add a public accessor function to the instance variable 76 // 4. implement the corresponding generator function in the platform-dependent 77 // stubGenerator_<arch>.cpp file and call the function in generate_all() of that file 78 79 class UnsafeCopyMemory : public CHeapObj<mtCode> { 80 private: 81 address _start_pc; 82 address _end_pc; 83 address _error_exit_pc; 84 public: 85 static address _common_exit_stub_pc; 86 static UnsafeCopyMemory* _table; 87 static int _table_length; 88 static int _table_max_length; 89 UnsafeCopyMemory() : _start_pc(nullptr), _end_pc(nullptr), _error_exit_pc(nullptr) {} 90 void set_start_pc(address pc) { _start_pc = pc; } 91 void set_end_pc(address pc) { _end_pc = pc; } 92 void set_error_exit_pc(address pc) { _error_exit_pc = pc; } 93 address start_pc() const { return _start_pc; } 94 address end_pc() const { return _end_pc; } 95 address error_exit_pc() const { return _error_exit_pc; } 96 97 static void set_common_exit_stub_pc(address pc) { _common_exit_stub_pc = pc; } 98 static address common_exit_stub_pc() { return _common_exit_stub_pc; } 99 100 static UnsafeCopyMemory* add_to_table(address start_pc, address end_pc, address error_exit_pc) { 101 guarantee(_table_length < _table_max_length, "Incorrect UnsafeCopyMemory::_table_max_length"); 102 UnsafeCopyMemory* entry = &_table[_table_length]; 103 entry->set_start_pc(start_pc); 104 entry->set_end_pc(end_pc); 105 entry->set_error_exit_pc(error_exit_pc); 106 107 _table_length++; 108 return entry; 109 } 110 111 static bool contains_pc(address pc); 112 static address page_error_continue_pc(address pc); 113 static void create_table(int max_size); 114 }; 115 116 class UnsafeCopyMemoryMark : public StackObj { 117 private: 118 UnsafeCopyMemory* _ucm_entry; 119 StubCodeGenerator* _cgen; 120 public: 121 UnsafeCopyMemoryMark(StubCodeGenerator* cgen, bool add_entry, bool continue_at_scope_end, address error_exit_pc = nullptr); 122 ~UnsafeCopyMemoryMark(); 123 }; 124 125 class StubRoutines: AllStatic { 126 127 public: 128 // Dependencies 129 friend class StubGenerator; 130 131 #include CPU_HEADER(stubRoutines) 132 133 static jint _verify_oop_count; 134 static address _verify_oop_subroutine_entry; 135 136 static address _call_stub_return_address; // the return PC, when returning to a call stub 137 static address _call_stub_entry; 138 static address _forward_exception_entry; 139 static address _catch_exception_entry; 140 static address _throw_AbstractMethodError_entry; 141 static address _throw_IncompatibleClassChangeError_entry; 142 static address _throw_NullPointerException_at_call_entry; 143 static address _throw_StackOverflowError_entry; 144 static address _throw_delayed_StackOverflowError_entry; 145 146 static address _atomic_xchg_entry; 147 static address _atomic_cmpxchg_entry; 148 static address _atomic_cmpxchg_long_entry; 149 static address _atomic_add_entry; 150 static address _fence_entry; 151 152 static BufferBlob* _initial_stubs_code; // code buffer for initial routines 153 static BufferBlob* _continuation_stubs_code; // code buffer for continuation stubs 154 static BufferBlob* _compiler_stubs_code; // code buffer for C2 intrinsics 155 static BufferBlob* _final_stubs_code; // code buffer for all other routines 156 157 static address _array_sort; 158 static address _array_partition; 159 // Leaf routines which implement arraycopy and their addresses 160 // arraycopy operands aligned on element type boundary 161 static address _jbyte_arraycopy; 162 static address _jshort_arraycopy; 163 static address _jint_arraycopy; 164 static address _jlong_arraycopy; 165 static address _oop_arraycopy, _oop_arraycopy_uninit; 166 static address _jbyte_disjoint_arraycopy; 167 static address _jshort_disjoint_arraycopy; 168 static address _jint_disjoint_arraycopy; 169 static address _jlong_disjoint_arraycopy; 170 static address _oop_disjoint_arraycopy, _oop_disjoint_arraycopy_uninit; 171 172 // arraycopy operands aligned on zero'th element boundary 173 // These are identical to the ones aligned aligned on an 174 // element type boundary, except that they assume that both 175 // source and destination are HeapWord aligned. 176 static address _arrayof_jbyte_arraycopy; 177 static address _arrayof_jshort_arraycopy; 178 static address _arrayof_jint_arraycopy; 179 static address _arrayof_jlong_arraycopy; 180 static address _arrayof_oop_arraycopy, _arrayof_oop_arraycopy_uninit; 181 static address _arrayof_jbyte_disjoint_arraycopy; 182 static address _arrayof_jshort_disjoint_arraycopy; 183 static address _arrayof_jint_disjoint_arraycopy; 184 static address _arrayof_jlong_disjoint_arraycopy; 185 static address _arrayof_oop_disjoint_arraycopy, _arrayof_oop_disjoint_arraycopy_uninit; 186 187 // cache line writeback 188 static address _data_cache_writeback; 189 static address _data_cache_writeback_sync; 190 191 // these are recommended but optional: 192 static address _checkcast_arraycopy, _checkcast_arraycopy_uninit; 193 static address _unsafe_arraycopy; 194 static address _generic_arraycopy; 195 196 static address _jbyte_fill; 197 static address _jshort_fill; 198 static address _jint_fill; 199 static address _arrayof_jbyte_fill; 200 static address _arrayof_jshort_fill; 201 static address _arrayof_jint_fill; 202 203 static address _aescrypt_encryptBlock; 204 static address _aescrypt_decryptBlock; 205 static address _cipherBlockChaining_encryptAESCrypt; 206 static address _cipherBlockChaining_decryptAESCrypt; 207 static address _electronicCodeBook_encryptAESCrypt; 208 static address _electronicCodeBook_decryptAESCrypt; 209 static address _counterMode_AESCrypt; 210 static address _galoisCounterMode_AESCrypt; 211 static address _ghash_processBlocks; 212 static address _chacha20Block; 213 static address _base64_encodeBlock; 214 static address _base64_decodeBlock; 215 static address _poly1305_processBlocks; 216 217 static address _md5_implCompress; 218 static address _md5_implCompressMB; 219 static address _sha1_implCompress; 220 static address _sha1_implCompressMB; 221 static address _sha256_implCompress; 222 static address _sha256_implCompressMB; 223 static address _sha512_implCompress; 224 static address _sha512_implCompressMB; 225 static address _sha3_implCompress; 226 static address _sha3_implCompressMB; 227 228 static address _updateBytesCRC32; 229 static address _crc_table_adr; 230 231 static address _crc32c_table_addr; 232 static address _updateBytesCRC32C; 233 static address _updateBytesAdler32; 234 235 static address _multiplyToLen; 236 static address _squareToLen; 237 static address _mulAdd; 238 static address _montgomeryMultiply; 239 static address _montgomerySquare; 240 static address _bigIntegerRightShiftWorker; 241 static address _bigIntegerLeftShiftWorker; 242 243 static address _vectorizedMismatch; 244 245 static address _dexp; 246 static address _dlog; 247 static address _dlog10; 248 static address _dpow; 249 static address _dsin; 250 static address _dcos; 251 static address _dlibm_sin_cos_huge; 252 static address _dlibm_reduce_pi04l; 253 static address _dlibm_tan_cot_huge; 254 static address _dtan; 255 static address _fmod; 256 257 static address _f2hf; 258 static address _hf2f; 259 260 static address _method_entry_barrier; 261 262 static address _cont_thaw; 263 static address _cont_returnBarrier; 264 static address _cont_returnBarrierExc; 265 static address _cont_preempt_stub; 266 static address _cont_preempt_monitorenter_redo; 267 static address _cont_preempt_rerun_compiler_adapter; 268 269 JFR_ONLY(static RuntimeStub* _jfr_write_checkpoint_stub;) 270 JFR_ONLY(static address _jfr_write_checkpoint;) 271 JFR_ONLY(static RuntimeStub* _jfr_return_lease_stub;) 272 JFR_ONLY(static address _jfr_return_lease;) 273 274 // Vector Math Routines 275 static address _vector_f_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP]; 276 static address _vector_d_math[VectorSupport::NUM_VEC_SIZES][VectorSupport::NUM_SVML_OP]; 277 278 static address _upcall_stub_exception_handler; 279 280 public: 281 // Initialization/Testing 282 static void initialize_initial_stubs(); // must happen before universe::genesis 283 static void initialize_continuation_stubs(); // must happen after universe::genesis 284 static void initialize_compiler_stubs(); // must happen after universe::genesis 285 static void initialize_final_stubs(); // must happen after universe::genesis 286 287 static bool is_stub_code(address addr) { return contains(addr); } 288 289 static bool contains(address addr) { 290 return 291 (_initial_stubs_code != nullptr && _initial_stubs_code->blob_contains(addr)) || 292 (_continuation_stubs_code != nullptr && _continuation_stubs_code->blob_contains(addr)) || 293 (_compiler_stubs_code != nullptr && _compiler_stubs_code->blob_contains(addr)) || 294 (_final_stubs_code != nullptr && _final_stubs_code->blob_contains(addr)) ; 295 } 296 297 static RuntimeBlob* initial_stubs_code() { return _initial_stubs_code; } 298 static RuntimeBlob* continuation_stubs_code() { return _continuation_stubs_code; } 299 static RuntimeBlob* compiler_stubs_code() { return _compiler_stubs_code; } 300 static RuntimeBlob* final_stubs_code() { return _final_stubs_code; } 301 302 // Debugging 303 static jint verify_oop_count() { return _verify_oop_count; } 304 static jint* verify_oop_count_addr() { return &_verify_oop_count; } 305 // a subroutine for debugging the GC 306 static address verify_oop_subroutine_entry_address() { return (address)&_verify_oop_subroutine_entry; } 307 308 static address catch_exception_entry() { return _catch_exception_entry; } 309 310 // Calls to Java 311 typedef void (*CallStub)( 312 address link, 313 intptr_t* result, 314 int result_type, /* BasicType on 4 bytes */ 315 Method* method, 316 address entry_point, 317 intptr_t* parameters, 318 int size_of_parameters, 319 TRAPS 320 ); 321 322 static CallStub call_stub() { return CAST_TO_FN_PTR(CallStub, _call_stub_entry); } 323 324 // Exceptions 325 static address forward_exception_entry() { return _forward_exception_entry; } 326 // Implicit exceptions 327 static address throw_AbstractMethodError_entry() { return _throw_AbstractMethodError_entry; } 328 static address throw_IncompatibleClassChangeError_entry(){ return _throw_IncompatibleClassChangeError_entry; } 329 static address throw_NullPointerException_at_call_entry(){ return _throw_NullPointerException_at_call_entry; } 330 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } 331 static address throw_delayed_StackOverflowError_entry() { return _throw_delayed_StackOverflowError_entry; } 332 333 static address atomic_xchg_entry() { return _atomic_xchg_entry; } 334 static address atomic_cmpxchg_entry() { return _atomic_cmpxchg_entry; } 335 static address atomic_cmpxchg_long_entry() { return _atomic_cmpxchg_long_entry; } 336 static address atomic_add_entry() { return _atomic_add_entry; } 337 static address fence_entry() { return _fence_entry; } 338 339 static address select_arraycopy_function(BasicType t, bool aligned, bool disjoint, const char* &name, bool dest_uninitialized); 340 341 static address jbyte_arraycopy() { return _jbyte_arraycopy; } 342 static address jshort_arraycopy() { return _jshort_arraycopy; } 343 static address jint_arraycopy() { return _jint_arraycopy; } 344 static address jlong_arraycopy() { return _jlong_arraycopy; } 345 static address oop_arraycopy(bool dest_uninitialized = false) { 346 return dest_uninitialized ? _oop_arraycopy_uninit : _oop_arraycopy; 347 } 348 static address jbyte_disjoint_arraycopy() { return _jbyte_disjoint_arraycopy; } 349 static address jshort_disjoint_arraycopy() { return _jshort_disjoint_arraycopy; } 350 static address jint_disjoint_arraycopy() { return _jint_disjoint_arraycopy; } 351 static address jlong_disjoint_arraycopy() { return _jlong_disjoint_arraycopy; } 352 static address oop_disjoint_arraycopy(bool dest_uninitialized = false) { 353 return dest_uninitialized ? _oop_disjoint_arraycopy_uninit : _oop_disjoint_arraycopy; 354 } 355 356 static address arrayof_jbyte_arraycopy() { return _arrayof_jbyte_arraycopy; } 357 static address arrayof_jshort_arraycopy() { return _arrayof_jshort_arraycopy; } 358 static address arrayof_jint_arraycopy() { return _arrayof_jint_arraycopy; } 359 static address arrayof_jlong_arraycopy() { return _arrayof_jlong_arraycopy; } 360 static address arrayof_oop_arraycopy(bool dest_uninitialized = false) { 361 return dest_uninitialized ? _arrayof_oop_arraycopy_uninit : _arrayof_oop_arraycopy; 362 } 363 364 static address arrayof_jbyte_disjoint_arraycopy() { return _arrayof_jbyte_disjoint_arraycopy; } 365 static address arrayof_jshort_disjoint_arraycopy() { return _arrayof_jshort_disjoint_arraycopy; } 366 static address arrayof_jint_disjoint_arraycopy() { return _arrayof_jint_disjoint_arraycopy; } 367 static address arrayof_jlong_disjoint_arraycopy() { return _arrayof_jlong_disjoint_arraycopy; } 368 static address arrayof_oop_disjoint_arraycopy(bool dest_uninitialized = false) { 369 return dest_uninitialized ? _arrayof_oop_disjoint_arraycopy_uninit : _arrayof_oop_disjoint_arraycopy; 370 } 371 static address data_cache_writeback() { return _data_cache_writeback; } 372 static address data_cache_writeback_sync() { return _data_cache_writeback_sync; } 373 374 typedef void (*DataCacheWritebackStub)(void *); 375 static DataCacheWritebackStub DataCacheWriteback_stub() { return CAST_TO_FN_PTR(DataCacheWritebackStub, _data_cache_writeback); } 376 typedef void (*DataCacheWritebackSyncStub)(bool); 377 static DataCacheWritebackSyncStub DataCacheWritebackSync_stub() { return CAST_TO_FN_PTR(DataCacheWritebackSyncStub, _data_cache_writeback_sync); } 378 379 static address checkcast_arraycopy(bool dest_uninitialized = false) { 380 return dest_uninitialized ? _checkcast_arraycopy_uninit : _checkcast_arraycopy; 381 } 382 static address unsafe_arraycopy() { return _unsafe_arraycopy; } 383 384 typedef void (*UnsafeArrayCopyStub)(const void* src, void* dst, size_t count); 385 static UnsafeArrayCopyStub UnsafeArrayCopy_stub() { return CAST_TO_FN_PTR(UnsafeArrayCopyStub, _unsafe_arraycopy); } 386 387 static address generic_arraycopy() { return _generic_arraycopy; } 388 static address select_arraysort_function() { return _array_sort; } 389 static address select_array_partition_function() { return _array_partition; } 390 391 static address jbyte_fill() { return _jbyte_fill; } 392 static address jshort_fill() { return _jshort_fill; } 393 static address jint_fill() { return _jint_fill; } 394 static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; } 395 static address arrayof_jshort_fill() { return _arrayof_jshort_fill; } 396 static address arrayof_jint_fill() { return _arrayof_jint_fill; } 397 398 static address aescrypt_encryptBlock() { return _aescrypt_encryptBlock; } 399 static address aescrypt_decryptBlock() { return _aescrypt_decryptBlock; } 400 static address cipherBlockChaining_encryptAESCrypt() { return _cipherBlockChaining_encryptAESCrypt; } 401 static address cipherBlockChaining_decryptAESCrypt() { return _cipherBlockChaining_decryptAESCrypt; } 402 static address electronicCodeBook_encryptAESCrypt() { return _electronicCodeBook_encryptAESCrypt; } 403 static address electronicCodeBook_decryptAESCrypt() { return _electronicCodeBook_decryptAESCrypt; } 404 static address poly1305_processBlocks() { return _poly1305_processBlocks; } 405 static address counterMode_AESCrypt() { return _counterMode_AESCrypt; } 406 static address ghash_processBlocks() { return _ghash_processBlocks; } 407 static address chacha20Block() { return _chacha20Block; } 408 static address base64_encodeBlock() { return _base64_encodeBlock; } 409 static address base64_decodeBlock() { return _base64_decodeBlock; } 410 static address md5_implCompress() { return _md5_implCompress; } 411 static address md5_implCompressMB() { return _md5_implCompressMB; } 412 static address sha1_implCompress() { return _sha1_implCompress; } 413 static address sha1_implCompressMB() { return _sha1_implCompressMB; } 414 static address sha256_implCompress() { return _sha256_implCompress; } 415 static address sha256_implCompressMB() { return _sha256_implCompressMB; } 416 static address sha512_implCompress() { return _sha512_implCompress; } 417 static address sha512_implCompressMB() { return _sha512_implCompressMB; } 418 static address sha3_implCompress() { return _sha3_implCompress; } 419 static address sha3_implCompressMB() { return _sha3_implCompressMB; } 420 421 static address updateBytesCRC32() { return _updateBytesCRC32; } 422 static address crc_table_addr() { return _crc_table_adr; } 423 424 static address crc32c_table_addr() { return _crc32c_table_addr; } 425 static address updateBytesCRC32C() { return _updateBytesCRC32C; } 426 static address updateBytesAdler32() { return _updateBytesAdler32; } 427 428 static address multiplyToLen() { return _multiplyToLen; } 429 static address squareToLen() { return _squareToLen; } 430 static address mulAdd() { return _mulAdd; } 431 static address montgomeryMultiply() { return _montgomeryMultiply; } 432 static address montgomerySquare() { return _montgomerySquare; } 433 static address bigIntegerRightShift() { return _bigIntegerRightShiftWorker; } 434 static address bigIntegerLeftShift() { return _bigIntegerLeftShiftWorker; } 435 static address galoisCounterMode_AESCrypt() { return _galoisCounterMode_AESCrypt; } 436 437 static address vectorizedMismatch() { return _vectorizedMismatch; } 438 439 static address dexp() { return _dexp; } 440 static address dlog() { return _dlog; } 441 static address dlog10() { return _dlog10; } 442 static address dpow() { return _dpow; } 443 static address fmod() { return _fmod; } 444 static address dsin() { return _dsin; } 445 static address dcos() { return _dcos; } 446 static address dlibm_reduce_pi04l() { return _dlibm_reduce_pi04l; } 447 static address dlibm_sin_cos_huge() { return _dlibm_sin_cos_huge; } 448 static address dlibm_tan_cot_huge() { return _dlibm_tan_cot_huge; } 449 static address dtan() { return _dtan; } 450 451 // These are versions of the java.lang.Float::floatToFloat16() and float16ToFloat() 452 // methods which perform the same operations as the intrinsic version. 453 // They are used for constant folding in JIT compiler to ensure equivalence. 454 // 455 static address f2hf_adr() { return _f2hf; } 456 static address hf2f_adr() { return _hf2f; } 457 458 static jshort f2hf(jfloat x) { 459 assert(_f2hf != nullptr, "stub is not implemented on this platform"); 460 MACOS_AARCH64_ONLY(ThreadWXEnable wx(WXExec, Thread::current());) // About to call into code cache 461 typedef jshort (*f2hf_stub_t)(jfloat x); 462 return ((f2hf_stub_t)_f2hf)(x); 463 } 464 static jfloat hf2f(jshort x) { 465 assert(_hf2f != nullptr, "stub is not implemented on this platform"); 466 MACOS_AARCH64_ONLY(ThreadWXEnable wx(WXExec, Thread::current());) // About to call into code cache 467 typedef jfloat (*hf2f_stub_t)(jshort x); 468 return ((hf2f_stub_t)_hf2f)(x); 469 } 470 471 static address method_entry_barrier() { return _method_entry_barrier; } 472 473 static address cont_thaw() { return _cont_thaw; } 474 static address cont_returnBarrier() { return _cont_returnBarrier; } 475 static address cont_returnBarrierExc(){return _cont_returnBarrierExc; } 476 static address cont_preempt_stub() { return _cont_preempt_stub; } 477 static address cont_preempt_monitorenter_redo() { return _cont_preempt_monitorenter_redo; } 478 static address cont_preempt_rerun_compiler_adapter() { return _cont_preempt_rerun_compiler_adapter; } 479 480 JFR_ONLY(static address jfr_write_checkpoint() { return _jfr_write_checkpoint; }) 481 JFR_ONLY(static address jfr_return_lease() { return _jfr_return_lease; }) 482 483 static address upcall_stub_exception_handler() { 484 assert(_upcall_stub_exception_handler != nullptr, "not implemented"); 485 return _upcall_stub_exception_handler; 486 } 487 488 static address select_fill_function(BasicType t, bool aligned, const char* &name); 489 490 // 491 // Default versions of the above arraycopy functions for platforms which do 492 // not have specialized versions 493 // 494 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); 495 static void jshort_copy (jshort* src, jshort* dest, size_t count); 496 static void jint_copy (jint* src, jint* dest, size_t count); 497 static void jlong_copy (jlong* src, jlong* dest, size_t count); 498 static void oop_copy (oop* src, oop* dest, size_t count); 499 static void oop_copy_uninit(oop* src, oop* dest, size_t count); 500 501 static void arrayof_jbyte_copy (HeapWord* src, HeapWord* dest, size_t count); 502 static void arrayof_jshort_copy (HeapWord* src, HeapWord* dest, size_t count); 503 static void arrayof_jint_copy (HeapWord* src, HeapWord* dest, size_t count); 504 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); 505 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); 506 static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count); 507 }; 508 509 #endif // SHARE_RUNTIME_STUBROUTINES_HPP