1 /* 2 * Copyright (c) 1997, 2017, 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_VM_UTILITIES_MACROS_HPP 26 #define SHARE_VM_UTILITIES_MACROS_HPP 27 28 // Use this to mark code that needs to be cleaned up (for development only) 29 #define NEEDS_CLEANUP 30 31 // Makes a string of the argument (which is not macro-expanded) 32 #define STR(a) #a 33 34 // Makes a string of the macro expansion of a 35 #define XSTR(a) STR(a) 36 37 // Allow commas in macro arguments. 38 #define COMMA , 39 40 // Apply pre-processor token pasting to the expansions of x and y. 41 // The token pasting operator (##) prevents its arguments from being 42 // expanded. This macro allows expansion of its arguments before the 43 // concatenation is performed. Note: One auxilliary level ought to be 44 // sufficient, but two are used because of bugs in some preprocesors. 45 #define PASTE_TOKENS(x, y) PASTE_TOKENS_AUX(x, y) 46 #define PASTE_TOKENS_AUX(x, y) PASTE_TOKENS_AUX2(x, y) 47 #define PASTE_TOKENS_AUX2(x, y) x ## y 48 49 // -DINCLUDE_<something>=0 | 1 can be specified on the command line to include 50 // or exclude functionality. 51 52 #ifndef INCLUDE_JVMTI 53 #define INCLUDE_JVMTI 1 54 #endif // INCLUDE_JVMTI 55 56 #if INCLUDE_JVMTI 57 #define JVMTI_ONLY(x) x 58 #define NOT_JVMTI(x) 59 #define NOT_JVMTI_RETURN 60 #define NOT_JVMTI_RETURN_(code) /* next token must be ; */ 61 #else 62 #define JVMTI_ONLY(x) 63 #define NOT_JVMTI(x) x 64 #define NOT_JVMTI_RETURN { return; } 65 #define NOT_JVMTI_RETURN_(code) { return code; } 66 #endif // INCLUDE_JVMTI 67 68 #ifndef INCLUDE_VM_STRUCTS 69 #define INCLUDE_VM_STRUCTS 1 70 #endif 71 72 #if INCLUDE_VM_STRUCTS 73 #define NOT_VM_STRUCTS_RETURN /* next token must be ; */ 74 #define NOT_VM_STRUCTS_RETURN_(code) /* next token must be ; */ 75 #else 76 #define NOT_VM_STRUCTS_RETURN {} 77 #define NOT_VM_STRUCTS_RETURN_(code) { return code; } 78 #endif // INCLUDE_VM_STRUCTS 79 80 #ifndef INCLUDE_JNI_CHECK 81 #define INCLUDE_JNI_CHECK 1 82 #endif 83 84 #if INCLUDE_JNI_CHECK 85 #define NOT_JNI_CHECK_RETURN /* next token must be ; */ 86 #define NOT_JNI_CHECK_RETURN_(code) /* next token must be ; */ 87 #else 88 #define NOT_JNI_CHECK_RETURN {} 89 #define NOT_JNI_CHECK_RETURN_(code) { return code; } 90 #endif // INCLUDE_JNI_CHECK 91 92 #ifndef INCLUDE_SERVICES 93 #define INCLUDE_SERVICES 1 94 #endif 95 96 #if INCLUDE_SERVICES 97 #define NOT_SERVICES_RETURN /* next token must be ; */ 98 #define NOT_SERVICES_RETURN_(code) /* next token must be ; */ 99 #else 100 #define NOT_SERVICES_RETURN {} 101 #define NOT_SERVICES_RETURN_(code) { return code; } 102 #endif // INCLUDE_SERVICES 103 104 #ifndef INCLUDE_CDS 105 #define INCLUDE_CDS 1 106 #endif 107 108 #if INCLUDE_CDS 109 #define CDS_ONLY(x) x 110 #define NOT_CDS(x) 111 #define NOT_CDS_RETURN /* next token must be ; */ 112 #define NOT_CDS_RETURN0 /* next token must be ; */ 113 #define NOT_CDS_RETURN_(code) /* next token must be ; */ 114 #else 115 #define CDS_ONLY(x) 116 #define NOT_CDS(x) x 117 #define NOT_CDS_RETURN {} 118 #define NOT_CDS_RETURN0 { return 0; } 119 #define NOT_CDS_RETURN_(code) { return code; } 120 #endif // INCLUDE_CDS 121 122 #ifndef INCLUDE_MANAGEMENT 123 #define INCLUDE_MANAGEMENT 1 124 #endif // INCLUDE_MANAGEMENT 125 126 #if INCLUDE_MANAGEMENT 127 #define NOT_MANAGEMENT_RETURN /* next token must be ; */ 128 #define NOT_MANAGEMENT_RETURN_(code) /* next token must be ; */ 129 #else 130 #define NOT_MANAGEMENT_RETURN {} 131 #define NOT_MANAGEMENT_RETURN_(code) { return code; } 132 #endif // INCLUDE_MANAGEMENT 133 134 #ifndef INCLUDE_CMSGC 135 #define INCLUDE_CMSGC 1 136 #endif // INCLUDE_CMSGC 137 138 #if INCLUDE_CMSGC 139 #define CMSGC_ONLY(x) x 140 #define CMSGC_ONLY_ARG(arg) arg, 141 #define NOT_CMSGC(x) 142 #define NOT_CMSGC_RETURN /* next token must be ; */ 143 #define NOT_CMSGC_RETURN_(code) /* next token must be ; */ 144 #else 145 #define CMSGC_ONLY(x) 146 #define CMSGC_ONLY_ARG(x) 147 #define NOT_CMSGC(x) x 148 #define NOT_CMSGC_RETURN {} 149 #define NOT_CMSGC_RETURN_(code) { return code; } 150 #endif // INCLUDE_CMSGC 151 152 #ifndef INCLUDE_G1GC 153 #define INCLUDE_G1GC 1 154 #endif // INCLUDE_G1GC 155 156 #if INCLUDE_G1GC 157 #define G1GC_ONLY(x) x 158 #define G1GC_ONLY_ARG(arg) arg, 159 #define NOT_G1GC(x) 160 #define NOT_G1GC_RETURN /* next token must be ; */ 161 #define NOT_G1GC_RETURN_(code) /* next token must be ; */ 162 #else 163 #define G1GC_ONLY(x) 164 #define G1GC_ONLY_ARG(arg) 165 #define NOT_G1GC(x) x 166 #define NOT_G1GC_RETURN {} 167 #define NOT_G1GC_RETURN_(code) { return code; } 168 #endif // INCLUDE_G1GC 169 170 #ifndef INCLUDE_PARALLELGC 171 #define INCLUDE_PARALLELGC 1 172 #endif // INCLUDE_PARALLELGC 173 174 #if INCLUDE_PARALLELGC 175 #define PARALLELGC_ONLY(x) x 176 #define PARALLELGC_ONLY_ARG(arg) arg, 177 #define NOT_PARALLELGC(x) 178 #define NOT_PARALLELGC_RETURN /* next token must be ; */ 179 #define NOT_PARALLELGC_RETURN_(code) /* next token must be ; */ 180 #else 181 #define PARALLELGC_ONLY(x) 182 #define PARALLELGC_ONLY_ARG(arg) 183 #define NOT_PARALLELGC(x) x 184 #define NOT_PARALLELGC_RETURN {} 185 #define NOT_PARALLELGC_RETURN_(code) { return code; } 186 #endif // INCLUDE_PARALLELGC 187 188 #ifndef INCLUDE_SERIALGC 189 #define INCLUDE_SERIALGC 1 190 #endif // INCLUDE_SERIALGC 191 192 #if INCLUDE_SERIALGC 193 #define SERIALGC_ONLY(x) x 194 #define SERIALGC_ONLY_ARG(arg) arg, 195 #define NOT_SERIALGC(x) 196 #define NOT_SERIALGC_RETURN /* next token must be ; */ 197 #define NOT_SERIALGC_RETURN_(code) /* next token must be ; */ 198 #else 199 #define SERIALGC_ONLY(x) 200 #define SERIALGC_ONLY_ARG(arg) 201 #define NOT_SERIALGC(x) x 202 #define NOT_SERIALGC_RETURN {} 203 #define NOT_SERIALGC_RETURN_(code) { return code; } 204 #endif // INCLUDE_SERIALGC 205 206 #ifndef INCLUDE_EPSILONGC 207 #define INCLUDE_EPSILONGC 1 208 #endif // INCLUDE_EPSILONGC 209 210 #if INCLUDE_EPSILONGC 211 #define EPSILONGC_ONLY(x) x 212 #define EPSILONGC_ONLY_ARG(arg) arg, 213 #define NOT_EPSILONGC(x) 214 #define NOT_EPSILONGC_RETURN /* next token must be ; */ 215 #define NOT_EPSILONGC_RETURN_(code) /* next token must be ; */ 216 #else 217 #define EPSILONGC_ONLY(x) 218 #define EPSILONGC_ONLY_ARG(arg) 219 #define NOT_EPSILONGC(x) x 220 #define NOT_EPSILONGC_RETURN {} 221 #define NOT_EPSILONGC_RETURN_(code) { return code; } 222 #endif // INCLUDE_EPSILONGC 223 224 #if INCLUDE_CMSGC || INCLUDE_G1GC || INCLUDE_PARALLELGC || INCLUDE_EPSILONGC 225 #define INCLUDE_NOT_ONLY_SERIALGC 1 226 #else 227 #define INCLUDE_NOT_ONLY_SERIALGC 0 228 #endif 229 230 #define INCLUDE_OOP_OOP_ITERATE_BACKWARDS INCLUDE_NOT_ONLY_SERIALGC 231 232 #ifndef INCLUDE_NMT 233 #define INCLUDE_NMT 1 234 #endif // INCLUDE_NMT 235 236 #if INCLUDE_NMT 237 #define NOT_NMT_RETURN /* next token must be ; */ 238 #define NOT_NMT_RETURN_(code) /* next token must be ; */ 239 #define NMT_ONLY(x) x 240 #define NOT_NMT(x) 241 #else 242 #define NOT_NMT_RETURN {} 243 #define NOT_NMT_RETURN_(code) { return code; } 244 #define NMT_ONLY(x) 245 #define NOT_NMT(x) x 246 #endif // INCLUDE_NMT 247 248 #ifndef INCLUDE_TRACE 249 #define INCLUDE_TRACE 1 250 #endif // INCLUDE_TRACE 251 252 #ifndef INCLUDE_JVMCI 253 #define INCLUDE_JVMCI 1 254 #endif 255 256 #ifndef INCLUDE_AOT 257 #define INCLUDE_AOT 1 258 #endif 259 260 #if INCLUDE_AOT && !INCLUDE_JVMCI 261 # error "Must have JVMCI for AOT" 262 #endif 263 264 #if INCLUDE_JVMCI 265 #define JVMCI_ONLY(code) code 266 #define NOT_JVMCI(code) 267 #define NOT_JVMCI_RETURN /* next token must be ; */ 268 #else 269 #define JVMCI_ONLY(code) 270 #define NOT_JVMCI(code) code 271 #define NOT_JVMCI_RETURN {} 272 #endif // INCLUDE_JVMCI 273 274 #if INCLUDE_AOT 275 #define AOT_ONLY(code) code 276 #define NOT_AOT(code) 277 #define NOT_AOT_RETURN /* next token must be ; */ 278 #else 279 #define AOT_ONLY(code) 280 #define NOT_AOT(code) code 281 #define NOT_AOT_RETURN {} 282 #endif // INCLUDE_AOT 283 284 // COMPILER1 variant 285 #ifdef COMPILER1 286 #ifdef COMPILER2 287 #define TIERED 288 #endif 289 #define COMPILER1_PRESENT(code) code 290 #define NOT_COMPILER1(code) 291 #else // COMPILER1 292 #define COMPILER1_PRESENT(code) 293 #define NOT_COMPILER1(code) code 294 #endif // COMPILER1 295 296 // COMPILER2 variant 297 #ifdef COMPILER2 298 #define COMPILER2_PRESENT(code) code 299 #define NOT_COMPILER2(code) 300 #else // COMPILER2 301 #define COMPILER2_PRESENT(code) 302 #define NOT_COMPILER2(code) code 303 #endif // COMPILER2 304 305 // COMPILER2 or JVMCI 306 #if defined(COMPILER2) || INCLUDE_JVMCI 307 #define COMPILER2_OR_JVMCI 1 308 #define COMPILER2_OR_JVMCI_PRESENT(code) code 309 #define NOT_COMPILER2_OR_JVMCI(code) 310 #else 311 #define COMPILER2_OR_JVMCI 0 312 #define COMPILER2_OR_JVMCI_PRESENT(code) 313 #define NOT_COMPILER2_OR_JVMCI(code) code 314 #endif 315 316 #ifdef TIERED 317 #define TIERED_ONLY(code) code 318 #define NOT_TIERED(code) 319 #else // TIERED 320 #define TIERED_ONLY(code) 321 #define NOT_TIERED(code) code 322 #endif // TIERED 323 324 325 // PRODUCT variant 326 #ifdef PRODUCT 327 #define PRODUCT_ONLY(code) code 328 #define NOT_PRODUCT(code) 329 #define NOT_PRODUCT_ARG(arg) 330 #define PRODUCT_RETURN {} 331 #define PRODUCT_RETURN0 { return 0; } 332 #define PRODUCT_RETURN_(code) { code } 333 #else // PRODUCT 334 #define PRODUCT_ONLY(code) 335 #define NOT_PRODUCT(code) code 336 #define NOT_PRODUCT_ARG(arg) arg, 337 #define PRODUCT_RETURN /*next token must be ;*/ 338 #define PRODUCT_RETURN0 /*next token must be ;*/ 339 #define PRODUCT_RETURN_(code) /*next token must be ;*/ 340 #endif // PRODUCT 341 342 #ifdef CHECK_UNHANDLED_OOPS 343 #define CHECK_UNHANDLED_OOPS_ONLY(code) code 344 #define NOT_CHECK_UNHANDLED_OOPS(code) 345 #else 346 #define CHECK_UNHANDLED_OOPS_ONLY(code) 347 #define NOT_CHECK_UNHANDLED_OOPS(code) code 348 #endif // CHECK_UNHANDLED_OOPS 349 350 #ifdef CC_INTERP 351 #define CC_INTERP_ONLY(code) code 352 #define NOT_CC_INTERP(code) 353 #else 354 #define CC_INTERP_ONLY(code) 355 #define NOT_CC_INTERP(code) code 356 #endif // CC_INTERP 357 358 #ifdef ASSERT 359 #define DEBUG_ONLY(code) code 360 #define NOT_DEBUG(code) 361 #define NOT_DEBUG_RETURN /*next token must be ;*/ 362 // Historical. 363 #define debug_only(code) code 364 #else // ASSERT 365 #define DEBUG_ONLY(code) 366 #define NOT_DEBUG(code) code 367 #define NOT_DEBUG_RETURN {} 368 #define debug_only(code) 369 #endif // ASSERT 370 371 #ifdef _LP64 372 #define LP64_ONLY(code) code 373 #define NOT_LP64(code) 374 #else // !_LP64 375 #define LP64_ONLY(code) 376 #define NOT_LP64(code) code 377 #endif // _LP64 378 379 #ifdef LINUX 380 #define LINUX_ONLY(code) code 381 #define NOT_LINUX(code) 382 #else 383 #define LINUX_ONLY(code) 384 #define NOT_LINUX(code) code 385 #endif 386 387 #ifdef AIX 388 #define AIX_ONLY(code) code 389 #define NOT_AIX(code) 390 #else 391 #define AIX_ONLY(code) 392 #define NOT_AIX(code) code 393 #endif 394 395 #ifdef SOLARIS 396 #define SOLARIS_ONLY(code) code 397 #define NOT_SOLARIS(code) 398 #else 399 #define SOLARIS_ONLY(code) 400 #define NOT_SOLARIS(code) code 401 #endif 402 403 #ifdef _WINDOWS 404 #define WINDOWS_ONLY(code) code 405 #define NOT_WINDOWS(code) 406 #else 407 #define WINDOWS_ONLY(code) 408 #define NOT_WINDOWS(code) code 409 #endif 410 411 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__) 412 #ifndef BSD 413 #define BSD 414 #endif // BSD defined in <sys/param.h> 415 #define BSD_ONLY(code) code 416 #define NOT_BSD(code) 417 #else 418 #define BSD_ONLY(code) 419 #define NOT_BSD(code) code 420 #endif 421 422 #ifdef _WIN64 423 #define WIN64_ONLY(code) code 424 #define NOT_WIN64(code) 425 #else 426 #define WIN64_ONLY(code) 427 #define NOT_WIN64(code) code 428 #endif 429 430 #if defined(ZERO) 431 #define ZERO_ONLY(code) code 432 #define NOT_ZERO(code) 433 #else 434 #define ZERO_ONLY(code) 435 #define NOT_ZERO(code) code 436 #endif 437 438 #if defined(IA32) || defined(AMD64) 439 #define X86 440 #define X86_ONLY(code) code 441 #define NOT_X86(code) 442 #else 443 #undef X86 444 #define X86_ONLY(code) 445 #define NOT_X86(code) code 446 #endif 447 448 #ifdef IA32 449 #define IA32_ONLY(code) code 450 #define NOT_IA32(code) 451 #else 452 #define IA32_ONLY(code) 453 #define NOT_IA32(code) code 454 #endif 455 456 // This is a REALLY BIG HACK, but on AIX <sys/systemcfg.h> unconditionally defines IA64. 457 // At least on AIX 7.1 this is a real problem because 'systemcfg.h' is indirectly included 458 // by 'pthread.h' and other common system headers. 459 460 #if defined(IA64) && !defined(AIX) 461 #define IA64_ONLY(code) code 462 #define NOT_IA64(code) 463 #else 464 #define IA64_ONLY(code) 465 #define NOT_IA64(code) code 466 #endif 467 468 #ifdef AMD64 469 #define AMD64_ONLY(code) code 470 #define NOT_AMD64(code) 471 #else 472 #define AMD64_ONLY(code) 473 #define NOT_AMD64(code) code 474 #endif 475 476 #ifdef S390 477 #define S390_ONLY(code) code 478 #define NOT_S390(code) 479 #else 480 #define S390_ONLY(code) 481 #define NOT_S390(code) code 482 #endif 483 484 #ifdef SPARC 485 #define SPARC_ONLY(code) code 486 #define NOT_SPARC(code) 487 #else 488 #define SPARC_ONLY(code) 489 #define NOT_SPARC(code) code 490 #endif 491 492 #if defined(PPC32) || defined(PPC64) 493 #ifndef PPC 494 #define PPC 495 #endif 496 #define PPC_ONLY(code) code 497 #define NOT_PPC(code) 498 #else 499 #undef PPC 500 #define PPC_ONLY(code) 501 #define NOT_PPC(code) code 502 #endif 503 504 #ifdef PPC32 505 #define PPC32_ONLY(code) code 506 #define NOT_PPC32(code) 507 #else 508 #define PPC32_ONLY(code) 509 #define NOT_PPC32(code) code 510 #endif 511 512 #ifdef PPC64 513 #define PPC64_ONLY(code) code 514 #define NOT_PPC64(code) 515 #else 516 #define PPC64_ONLY(code) 517 #define NOT_PPC64(code) code 518 #endif 519 520 #ifdef E500V2 521 #define E500V2_ONLY(code) code 522 #define NOT_E500V2(code) 523 #else 524 #define E500V2_ONLY(code) 525 #define NOT_E500V2(code) code 526 #endif 527 528 // Note: There are three ARM ports. They set the following in the makefiles: 529 // 1. Closed 32-bit port: -DARM -DARM32 -DTARGET_ARCH_arm 530 // 2. Closed 64-bit port: -DARM -DAARCH64 -D_LP64 -DTARGET_ARCH_arm 531 // 3. Open 64-bit port: -DAARCH64 -D_LP64 -DTARGET_ARCH_aaarch64 532 #ifdef ARM 533 #define ARM_ONLY(code) code 534 #define NOT_ARM(code) 535 #else 536 #define ARM_ONLY(code) 537 #define NOT_ARM(code) code 538 #endif 539 540 #ifdef ARM32 541 #define ARM32_ONLY(code) code 542 #define NOT_ARM32(code) 543 #else 544 #define ARM32_ONLY(code) 545 #define NOT_ARM32(code) code 546 #endif 547 548 #ifdef AARCH64 549 #define AARCH64_ONLY(code) code 550 #define NOT_AARCH64(code) 551 #else 552 #define AARCH64_ONLY(code) 553 #define NOT_AARCH64(code) code 554 #endif 555 556 #define define_pd_global(type, name, value) const type pd_##name = value; 557 558 // Helper macros for constructing file names for includes. 559 #define CPU_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_CPU) 560 #define OS_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_OS) 561 #define OS_CPU_HEADER_STEM(basename) PASTE_TOKENS(basename, PASTE_TOKENS(INCLUDE_SUFFIX_OS, INCLUDE_SUFFIX_CPU)) 562 #define COMPILER_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_COMPILER) 563 564 // Include platform dependent files. 565 // 566 // This macro constructs from basename and INCLUDE_SUFFIX_OS / 567 // INCLUDE_SUFFIX_CPU / INCLUDE_SUFFIX_COMPILER, which are set on 568 // the command line, the name of platform dependent files to be included. 569 // Example: INCLUDE_SUFFIX_OS=_linux / INCLUDE_SUFFIX_CPU=_sparc 570 // CPU_HEADER_INLINE(macroAssembler) --> macroAssembler_sparc.inline.hpp 571 // OS_CPU_HEADER(vmStructs) --> vmStructs_linux_sparc.hpp 572 // 573 // basename<cpu>.hpp / basename<cpu>.inline.hpp 574 #define CPU_HEADER_H(basename) XSTR(CPU_HEADER_STEM(basename).h) 575 #define CPU_HEADER(basename) XSTR(CPU_HEADER_STEM(basename).hpp) 576 #define CPU_HEADER_INLINE(basename) XSTR(CPU_HEADER_STEM(basename).inline.hpp) 577 // basename<os>.hpp / basename<os>.inline.hpp 578 #define OS_HEADER_H(basename) XSTR(OS_HEADER_STEM(basename).h) 579 #define OS_HEADER(basename) XSTR(OS_HEADER_STEM(basename).hpp) 580 #define OS_HEADER_INLINE(basename) XSTR(OS_HEADER_STEM(basename).inline.hpp) 581 // basename<os><cpu>.hpp / basename<os><cpu>.inline.hpp 582 #define OS_CPU_HEADER(basename) XSTR(OS_CPU_HEADER_STEM(basename).hpp) 583 #define OS_CPU_HEADER_INLINE(basename) XSTR(OS_CPU_HEADER_STEM(basename).inline.hpp) 584 // basename<compiler>.hpp / basename<compiler>.inline.hpp 585 #define COMPILER_HEADER(basename) XSTR(COMPILER_HEADER_STEM(basename).hpp) 586 #define COMPILER_HEADER_INLINE(basename) XSTR(COMPILER_HEADER_STEM(basename).inline.hpp) 587 588 // To use Atomic::inc(jshort* dest) and Atomic::dec(jshort* dest), the address must be specially 589 // aligned, such that (*dest) occupies the upper 16 bits of an aligned 32-bit word. The best way to 590 // achieve is to place your short value next to another short value, which doesn't need atomic ops. 591 // 592 // Example 593 // ATOMIC_SHORT_PAIR( 594 // volatile short _refcount, // needs atomic operation 595 // unsigned short _length // number of UTF8 characters in the symbol (does not need atomic op) 596 // ); 597 598 #ifdef VM_LITTLE_ENDIAN 599 #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl) \ 600 non_atomic_decl; \ 601 atomic_decl 602 #else 603 #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl) \ 604 atomic_decl; \ 605 non_atomic_decl 606 #endif 607 608 #if INCLUDE_CDS && INCLUDE_G1GC && defined(_LP64) && !defined(_WINDOWS) 609 #define INCLUDE_CDS_JAVA_HEAP 1 610 #define CDS_JAVA_HEAP_ONLY(x) x 611 #define NOT_CDS_JAVA_HEAP(x) 612 #define NOT_CDS_JAVA_HEAP_RETURN 613 #define NOT_CDS_JAVA_HEAP_RETURN_(code) 614 #else 615 #define INCLUDE_CDS_JAVA_HEAP 0 616 #define CDS_JAVA_HEAP_ONLY(x) 617 #define NOT_CDS_JAVA_HEAP(x) x 618 #define NOT_CDS_JAVA_HEAP_RETURN {} 619 #define NOT_CDS_JAVA_HEAP_RETURN_(code) { return code; } 620 #endif 621 622 #endif // SHARE_VM_UTILITIES_MACROS_HPP