1 /*
2 * Copyright (c) 1997, 2018, 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_ZGC
207 #define INCLUDE_ZGC 1
208 #endif // INCLUDE_ZGC
209
210 #if INCLUDE_ZGC
211 #define ZGC_ONLY(x) x
212 #define ZGC_ONLY_ARG(arg) arg,
213 #define NOT_ZGC(x)
214 #define NOT_ZGC_RETURN /* next token must be ; */
215 #define NOT_ZGC_RETURN_(code) /* next token must be ; */
216 #else
217 #define ZGC_ONLY(x)
218 #define ZGC_ONLY_ARG(arg)
219 #define NOT_ZGC(x) x
220 #define NOT_ZGC_RETURN {}
221 #define NOT_ZGC_RETURN_(code) { return code; }
222 #endif // INCLUDE_ZGC
223
224 #if INCLUDE_CMSGC || INCLUDE_G1GC || INCLUDE_PARALLELGC || INCLUDE_ZGC
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_JFR
249 #define INCLUDE_JFR 1
250 #endif
251
252 #if INCLUDE_JFR
253 #define JFR_ONLY(code) code
254 #else
255 #define JFR_ONLY(code)
256 #endif
257
258 #ifndef INCLUDE_JVMCI
259 #define INCLUDE_JVMCI 1
260 #endif
261
262 #ifndef INCLUDE_AOT
263 #define INCLUDE_AOT 1
264 #endif
265
266 #if INCLUDE_AOT && !INCLUDE_JVMCI
267 # error "Must have JVMCI for AOT"
268 #endif
269
270 #if INCLUDE_JVMCI
271 #define JVMCI_ONLY(code) code
272 #define NOT_JVMCI(code)
273 #define NOT_JVMCI_RETURN /* next token must be ; */
274 #else
275 #define JVMCI_ONLY(code)
276 #define NOT_JVMCI(code) code
277 #define NOT_JVMCI_RETURN {}
278 #endif // INCLUDE_JVMCI
279
280 #if INCLUDE_AOT
281 #define AOT_ONLY(code) code
282 #define NOT_AOT(code)
283 #define NOT_AOT_RETURN /* next token must be ; */
284 #else
285 #define AOT_ONLY(code)
286 #define NOT_AOT(code) code
287 #define NOT_AOT_RETURN {}
288 #endif // INCLUDE_AOT
289
290 // COMPILER1 variant
291 #ifdef COMPILER1
292 #ifdef COMPILER2
293 #define TIERED
294 #endif
295 #define COMPILER1_PRESENT(code) code
296 #define NOT_COMPILER1(code)
297 #else // COMPILER1
298 #define COMPILER1_PRESENT(code)
299 #define NOT_COMPILER1(code) code
300 #endif // COMPILER1
301
302 // COMPILER2 variant
303 #ifdef COMPILER2
304 #define COMPILER2_PRESENT(code) code
305 #define NOT_COMPILER2(code)
306 #else // COMPILER2
307 #define COMPILER2_PRESENT(code)
308 #define NOT_COMPILER2(code) code
309 #endif // COMPILER2
310
311 // COMPILER2 or JVMCI
312 #if defined(COMPILER2) || INCLUDE_JVMCI
313 #define COMPILER2_OR_JVMCI 1
314 #define COMPILER2_OR_JVMCI_PRESENT(code) code
315 #define NOT_COMPILER2_OR_JVMCI(code)
316 #else
317 #define COMPILER2_OR_JVMCI 0
318 #define COMPILER2_OR_JVMCI_PRESENT(code)
319 #define NOT_COMPILER2_OR_JVMCI(code) code
320 #endif
321
322 #ifdef TIERED
323 #define TIERED_ONLY(code) code
324 #define NOT_TIERED(code)
325 #else // TIERED
326 #define TIERED_ONLY(code)
327 #define NOT_TIERED(code) code
328 #endif // TIERED
329
330
331 // PRODUCT variant
332 #ifdef PRODUCT
333 #define PRODUCT_ONLY(code) code
334 #define NOT_PRODUCT(code)
335 #define NOT_PRODUCT_ARG(arg)
336 #define PRODUCT_RETURN {}
337 #define PRODUCT_RETURN0 { return 0; }
338 #define PRODUCT_RETURN_(code) { code }
339 #else // PRODUCT
340 #define PRODUCT_ONLY(code)
341 #define NOT_PRODUCT(code) code
342 #define NOT_PRODUCT_ARG(arg) arg,
343 #define PRODUCT_RETURN /*next token must be ;*/
344 #define PRODUCT_RETURN0 /*next token must be ;*/
345 #define PRODUCT_RETURN_(code) /*next token must be ;*/
346 #endif // PRODUCT
347
348 #ifdef CHECK_UNHANDLED_OOPS
349 #define CHECK_UNHANDLED_OOPS_ONLY(code) code
350 #define NOT_CHECK_UNHANDLED_OOPS(code)
351 #else
352 #define CHECK_UNHANDLED_OOPS_ONLY(code)
353 #define NOT_CHECK_UNHANDLED_OOPS(code) code
354 #endif // CHECK_UNHANDLED_OOPS
355
356 #ifdef CC_INTERP
357 #define CC_INTERP_ONLY(code) code
358 #define NOT_CC_INTERP(code)
359 #else
360 #define CC_INTERP_ONLY(code)
361 #define NOT_CC_INTERP(code) code
362 #endif // CC_INTERP
363
364 #ifdef ASSERT
365 #define DEBUG_ONLY(code) code
366 #define NOT_DEBUG(code)
367 #define NOT_DEBUG_RETURN /*next token must be ;*/
368 // Historical.
369 #define debug_only(code) code
370 #else // ASSERT
371 #define DEBUG_ONLY(code)
372 #define NOT_DEBUG(code) code
373 #define NOT_DEBUG_RETURN {}
374 #define debug_only(code)
375 #endif // ASSERT
376
377 #ifdef _LP64
378 #define LP64_ONLY(code) code
379 #define NOT_LP64(code)
380 #else // !_LP64
381 #define LP64_ONLY(code)
382 #define NOT_LP64(code) code
383 #endif // _LP64
384
385 #ifdef LINUX
386 #define LINUX_ONLY(code) code
387 #define NOT_LINUX(code)
388 #else
389 #define LINUX_ONLY(code)
390 #define NOT_LINUX(code) code
391 #endif
392
393 #ifdef AIX
394 #define AIX_ONLY(code) code
395 #define NOT_AIX(code)
396 #else
397 #define AIX_ONLY(code)
398 #define NOT_AIX(code) code
399 #endif
400
401 #ifdef SOLARIS
402 #define SOLARIS_ONLY(code) code
403 #define NOT_SOLARIS(code)
404 #else
405 #define SOLARIS_ONLY(code)
406 #define NOT_SOLARIS(code) code
407 #endif
408
409 #ifdef _WINDOWS
410 #define WINDOWS_ONLY(code) code
411 #define NOT_WINDOWS(code)
412 #else
413 #define WINDOWS_ONLY(code)
414 #define NOT_WINDOWS(code) code
415 #endif
416
417 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
418 #ifndef BSD
419 #define BSD
420 #endif // BSD defined in <sys/param.h>
421 #define BSD_ONLY(code) code
422 #define NOT_BSD(code)
423 #else
424 #define BSD_ONLY(code)
425 #define NOT_BSD(code) code
426 #endif
427
428 #ifdef _WIN64
429 #define WIN64_ONLY(code) code
430 #define NOT_WIN64(code)
431 #else
432 #define WIN64_ONLY(code)
433 #define NOT_WIN64(code) code
434 #endif
435
436 #if defined(ZERO)
437 #define ZERO_ONLY(code) code
438 #define NOT_ZERO(code)
439 #else
440 #define ZERO_ONLY(code)
441 #define NOT_ZERO(code) code
442 #endif
443
444 #if defined(IA32) || defined(AMD64)
445 #define X86
446 #define X86_ONLY(code) code
447 #define NOT_X86(code)
448 #else
449 #undef X86
450 #define X86_ONLY(code)
451 #define NOT_X86(code) code
452 #endif
453
454 #ifdef IA32
455 #define IA32_ONLY(code) code
456 #define NOT_IA32(code)
457 #else
458 #define IA32_ONLY(code)
459 #define NOT_IA32(code) code
460 #endif
461
462 // This is a REALLY BIG HACK, but on AIX <sys/systemcfg.h> unconditionally defines IA64.
463 // At least on AIX 7.1 this is a real problem because 'systemcfg.h' is indirectly included
464 // by 'pthread.h' and other common system headers.
465
466 #if defined(IA64) && !defined(AIX)
467 #define IA64_ONLY(code) code
468 #define NOT_IA64(code)
469 #else
470 #define IA64_ONLY(code)
471 #define NOT_IA64(code) code
472 #endif
473
474 #ifdef AMD64
475 #define AMD64_ONLY(code) code
476 #define NOT_AMD64(code)
477 #else
478 #define AMD64_ONLY(code)
479 #define NOT_AMD64(code) code
480 #endif
481
482 #ifdef S390
483 #define S390_ONLY(code) code
484 #define NOT_S390(code)
485 #else
486 #define S390_ONLY(code)
487 #define NOT_S390(code) code
488 #endif
489
490 #ifdef SPARC
491 #define SPARC_ONLY(code) code
492 #define NOT_SPARC(code)
493 #else
494 #define SPARC_ONLY(code)
495 #define NOT_SPARC(code) code
496 #endif
497
498 #if defined(PPC32) || defined(PPC64)
499 #ifndef PPC
500 #define PPC
501 #endif
502 #define PPC_ONLY(code) code
503 #define NOT_PPC(code)
504 #else
505 #undef PPC
506 #define PPC_ONLY(code)
507 #define NOT_PPC(code) code
508 #endif
509
510 #ifdef PPC32
511 #define PPC32_ONLY(code) code
512 #define NOT_PPC32(code)
513 #else
514 #define PPC32_ONLY(code)
515 #define NOT_PPC32(code) code
516 #endif
517
518 #ifdef PPC64
519 #define PPC64_ONLY(code) code
520 #define NOT_PPC64(code)
521 #else
522 #define PPC64_ONLY(code)
523 #define NOT_PPC64(code) code
524 #endif
525
526 #ifdef E500V2
527 #define E500V2_ONLY(code) code
528 #define NOT_E500V2(code)
529 #else
530 #define E500V2_ONLY(code)
531 #define NOT_E500V2(code) code
532 #endif
533
534 // Note: There are three ARM ports. They set the following in the makefiles:
535 // 1. Closed 32-bit port: -DARM -DARM32 -DTARGET_ARCH_arm
536 // 2. Closed 64-bit port: -DARM -DAARCH64 -D_LP64 -DTARGET_ARCH_arm
537 // 3. Open 64-bit port: -DAARCH64 -D_LP64 -DTARGET_ARCH_aaarch64
538 #ifdef ARM
539 #define ARM_ONLY(code) code
540 #define NOT_ARM(code)
541 #else
542 #define ARM_ONLY(code)
543 #define NOT_ARM(code) code
544 #endif
545
546 #ifdef ARM32
547 #define ARM32_ONLY(code) code
548 #define NOT_ARM32(code)
549 #else
550 #define ARM32_ONLY(code)
551 #define NOT_ARM32(code) code
552 #endif
553
554 #ifdef AARCH64
555 #define AARCH64_ONLY(code) code
556 #define NOT_AARCH64(code)
557 #else
558 #define AARCH64_ONLY(code)
559 #define NOT_AARCH64(code) code
560 #endif
561
562 #define define_pd_global(type, name, value) const type pd_##name = value;
563
564 // Helper macros for constructing file names for includes.
565 #define CPU_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_CPU)
566 #define OS_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_OS)
567 #define OS_CPU_HEADER_STEM(basename) PASTE_TOKENS(basename, PASTE_TOKENS(INCLUDE_SUFFIX_OS, INCLUDE_SUFFIX_CPU))
568 #define COMPILER_HEADER_STEM(basename) PASTE_TOKENS(basename, INCLUDE_SUFFIX_COMPILER)
569
570 // Include platform dependent files.
571 //
572 // This macro constructs from basename and INCLUDE_SUFFIX_OS /
573 // INCLUDE_SUFFIX_CPU / INCLUDE_SUFFIX_COMPILER, which are set on
574 // the command line, the name of platform dependent files to be included.
575 // Example: INCLUDE_SUFFIX_OS=_linux / INCLUDE_SUFFIX_CPU=_sparc
576 // CPU_HEADER_INLINE(macroAssembler) --> macroAssembler_sparc.inline.hpp
577 // OS_CPU_HEADER(vmStructs) --> vmStructs_linux_sparc.hpp
578 //
579 // basename<cpu>.hpp / basename<cpu>.inline.hpp
580 #define CPU_HEADER_H(basename) XSTR(CPU_HEADER_STEM(basename).h)
581 #define CPU_HEADER(basename) XSTR(CPU_HEADER_STEM(basename).hpp)
582 #define CPU_HEADER_INLINE(basename) XSTR(CPU_HEADER_STEM(basename).inline.hpp)
583 // basename<os>.hpp / basename<os>.inline.hpp
584 #define OS_HEADER_H(basename) XSTR(OS_HEADER_STEM(basename).h)
585 #define OS_HEADER(basename) XSTR(OS_HEADER_STEM(basename).hpp)
586 #define OS_HEADER_INLINE(basename) XSTR(OS_HEADER_STEM(basename).inline.hpp)
587 // basename<os><cpu>.hpp / basename<os><cpu>.inline.hpp
588 #define OS_CPU_HEADER(basename) XSTR(OS_CPU_HEADER_STEM(basename).hpp)
589 #define OS_CPU_HEADER_INLINE(basename) XSTR(OS_CPU_HEADER_STEM(basename).inline.hpp)
590 // basename<compiler>.hpp / basename<compiler>.inline.hpp
591 #define COMPILER_HEADER(basename) XSTR(COMPILER_HEADER_STEM(basename).hpp)
592 #define COMPILER_HEADER_INLINE(basename) XSTR(COMPILER_HEADER_STEM(basename).inline.hpp)
593
594 // To use Atomic::inc(jshort* dest) and Atomic::dec(jshort* dest), the address must be specially
595 // aligned, such that (*dest) occupies the upper 16 bits of an aligned 32-bit word. The best way to
596 // achieve is to place your short value next to another short value, which doesn't need atomic ops.
597 //
598 // Example
599 // ATOMIC_SHORT_PAIR(
600 // volatile short _refcount, // needs atomic operation
601 // unsigned short _length // number of UTF8 characters in the symbol (does not need atomic op)
602 // );
603
604 #ifdef VM_LITTLE_ENDIAN
605 #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl) \
606 non_atomic_decl; \
607 atomic_decl
608 #else
609 #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl) \
610 atomic_decl; \
611 non_atomic_decl
612 #endif
613
614 #if INCLUDE_CDS && INCLUDE_G1GC && defined(_LP64) && !defined(_WINDOWS)
615 #define INCLUDE_CDS_JAVA_HEAP 1
616 #define CDS_JAVA_HEAP_ONLY(x) x
617 #define NOT_CDS_JAVA_HEAP(x)
618 #define NOT_CDS_JAVA_HEAP_RETURN
619 #define NOT_CDS_JAVA_HEAP_RETURN_(code)
620 #else
621 #define INCLUDE_CDS_JAVA_HEAP 0
622 #define CDS_JAVA_HEAP_ONLY(x)
623 #define NOT_CDS_JAVA_HEAP(x) x
624 #define NOT_CDS_JAVA_HEAP_RETURN {}
625 #define NOT_CDS_JAVA_HEAP_RETURN_(code) { return code; }
626 #endif
627
628 #endif // SHARE_VM_UTILITIES_MACROS_HPP