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2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: TBD
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--- old/usr/src/uts/common/sys/feature_tests.h
+++ new/usr/src/uts/common/sys/feature_tests.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
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16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 25 */
26 +/*
27 + * Copyright 2013 Garrett D'Amore <garrett@damore.org>
28 + */
26 29
27 30 #ifndef _SYS_FEATURE_TESTS_H
28 31 #define _SYS_FEATURE_TESTS_H
29 32
30 33 #include <sys/ccompile.h>
31 34 #include <sys/isa_defs.h>
32 35
33 36 #ifdef __cplusplus
34 37 extern "C" {
35 38 #endif
36 39
37 40 /*
38 41 * Values of _POSIX_C_SOURCE
39 42 *
40 43 * undefined not a POSIX compilation
41 44 * 1 POSIX.1-1990 compilation
42 45 * 2 POSIX.2-1992 compilation
43 46 * 199309L POSIX.1b-1993 compilation (Real Time)
44 47 * 199506L POSIX.1c-1995 compilation (POSIX Threads)
45 48 * 200112L POSIX.1-2001 compilation (Austin Group Revision)
49 + * 200809L POSIX.1-2008 compilation
46 50 */
47 51 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
48 52 #define _POSIX_C_SOURCE 1
49 53 #endif
50 54
51 55 /*
52 - * The feature test macros __XOPEN_OR_POSIX, _STRICT_STDC, and _STDC_C99
53 - * are Sun implementation specific macros created in order to compress
54 - * common standards specified feature test macros for easier reading.
56 + * The feature test macros __XOPEN_OR_POSIX, _STRICT_STDC, _STRICT_SYMBOLS,
57 + * and _STDC_C99 are Sun implementation specific macros created in order to
58 + * compress common standards specified feature test macros for easier reading.
55 59 * These macros should not be used by the application developer as
56 60 * unexpected results may occur. Instead, the user should reference
57 61 * standards(5) for correct usage of the standards feature test macros.
58 62 *
59 63 * __XOPEN_OR_POSIX Used in cases where a symbol is defined by both
60 64 * X/Open or POSIX or in the negative, when neither
61 65 * X/Open or POSIX defines a symbol.
62 66 *
63 67 * _STRICT_STDC __STDC__ is specified by the C Standards and defined
64 68 * by the compiler. For Sun compilers the value of
65 69 * __STDC__ is either 1, 0, or not defined based on the
66 70 * compilation mode (see cc(1)). When the value of
67 71 * __STDC__ is 1 and in the absence of any other feature
68 72 * test macros, the namespace available to the application
69 73 * is limited to only those symbols defined by the C
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70 74 * Standard. _STRICT_STDC provides a more readable means
71 75 * of identifying symbols defined by the standard, or in
72 76 * the negative, symbols that are extensions to the C
73 77 * Standard. See additional comments for GNU C differences.
74 78 *
75 79 * _STDC_C99 __STDC_VERSION__ is specified by the C standards and
76 80 * defined by the compiler and indicates the version of
77 81 * the C standard. A value of 199901L indicates a
78 82 * compiler that complies with ISO/IEC 9899:1999, other-
79 83 * wise known as the C99 standard.
84 + *
85 + * _STRICT_SYMBOLS Used in cases where symbol visibility is restricted
86 + * by the standards, and the user has not explicitly
87 + * relaxed the strictness via __EXTENSIONS__.
80 88 */
81 89
82 90 #if defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE)
83 91 #define __XOPEN_OR_POSIX
84 92 #endif
85 93
86 94 /*
87 95 * ISO/IEC 9899:1990 and it's revision, ISO/IEC 9899:1999 specify the
88 96 * following predefined macro name:
89 97 *
90 98 * __STDC__ The integer constant 1, intended to indicate a conforming
91 99 * implementation.
92 100 *
93 101 * Furthermore, a strictly conforming program shall use only those features
94 102 * of the language and library specified in these standards. A conforming
95 103 * implementation shall accept any strictly conforming program.
96 104 *
97 105 * Based on these requirements, Sun's C compiler defines __STDC__ to 1 for
98 106 * strictly conforming environments and __STDC__ to 0 for environments that
99 107 * use ANSI C semantics but allow extensions to the C standard. For non-ANSI
100 108 * C semantics, Sun's C compiler does not define __STDC__.
101 109 *
102 110 * The GNU C project interpretation is that __STDC__ should always be defined
103 111 * to 1 for compilation modes that accept ANSI C syntax regardless of whether
104 112 * or not extensions to the C standard are used. Violations of conforming
105 113 * behavior are conditionally flagged as warnings via the use of the
106 114 * -pedantic option. In addition to defining __STDC__ to 1, the GNU C
107 115 * compiler also defines __STRICT_ANSI__ as a means of specifying strictly
108 116 * conforming environments using the -ansi or -std=<standard> options.
109 117 *
110 118 * In the absence of any other compiler options, Sun and GNU set the value
111 119 * of __STDC__ as follows when using the following options:
112 120 *
113 121 * Value of __STDC__ __STRICT_ANSI__
114 122 *
115 123 * cc -Xa (default) 0 undefined
116 124 * cc -Xt (transitional) 0 undefined
117 125 * cc -Xc (strictly conforming) 1 undefined
118 126 * cc -Xs (K&R C) undefined undefined
119 127 *
120 128 * gcc (default) 1 undefined
121 129 * gcc -ansi, -std={c89, c99,...) 1 defined
122 130 * gcc -traditional (K&R) undefined undefined
123 131 *
124 132 * The default compilation modes for Sun C compilers versus GNU C compilers
125 133 * results in a differing value for __STDC__ which results in a more
126 134 * restricted namespace when using Sun compilers. To allow both GNU and Sun
127 135 * interpretations to peacefully co-exist, we use the following Sun
128 136 * implementation _STRICT_STDC_ macro:
129 137 */
130 138
131 139 #if (__STDC__ - 0 == 1 && !defined(__GNUC__)) || \
132 140 (defined(__GNUC__) && defined(__STRICT_ANSI__))
133 141 #define _STRICT_STDC
134 142 #else
135 143 #undef _STRICT_STDC
136 144 #endif
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137 145
138 146 /*
139 147 * Compiler complies with ISO/IEC 9899:1999
140 148 */
141 149
142 150 #if __STDC_VERSION__ - 0 >= 199901L
143 151 #define _STDC_C99
144 152 #endif
145 153
146 154 /*
155 + * Use strict symbol visibility.
156 + */
157 +#if (defined(_STRICT_STDC) || defined(__XOPEN_OR_POSIX)) && \
158 + !defined(__EXTENSIONS__)
159 +#define _STRICT_SYMBOLS
160 +#endif
161 +
162 +/*
147 163 * Large file interfaces:
148 164 *
149 165 * _LARGEFILE_SOURCE
150 166 * 1 large file-related additions to POSIX
151 167 * interfaces requested (fseeko, etc.)
152 168 * _LARGEFILE64_SOURCE
153 169 * 1 transitional large-file-related interfaces
154 170 * requested (seek64, stat64, etc.)
155 171 *
156 172 * The corresponding announcement macros are respectively:
157 173 * _LFS_LARGEFILE
158 174 * _LFS64_LARGEFILE
159 175 * (These are set in <unistd.h>.)
160 176 *
161 177 * Requesting _LARGEFILE64_SOURCE implies requesting _LARGEFILE_SOURCE as
162 178 * well.
163 179 *
164 180 * The large file interfaces are made visible regardless of the initial values
165 181 * of the feature test macros under certain circumstances:
166 182 * - If no explicit standards-conforming environment is requested (neither
167 183 * of _POSIX_SOURCE nor _XOPEN_SOURCE is defined and the value of
168 184 * __STDC__ does not imply standards conformance).
169 185 * - Extended system interfaces are explicitly requested (__EXTENSIONS__
170 186 * is defined).
171 187 * - Access to in-kernel interfaces is requested (_KERNEL or _KMEMUSER is
172 188 * defined). (Note that this dependency is an artifact of the current
173 189 * kernel implementation and may change in future releases.)
174 190 */
175 191 #if (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
176 192 defined(_KERNEL) || defined(_KMEMUSER) || \
177 193 defined(__EXTENSIONS__)
178 194 #undef _LARGEFILE64_SOURCE
179 195 #define _LARGEFILE64_SOURCE 1
180 196 #endif
181 197 #if _LARGEFILE64_SOURCE - 0 == 1
182 198 #undef _LARGEFILE_SOURCE
183 199 #define _LARGEFILE_SOURCE 1
184 200 #endif
185 201
186 202 /*
187 203 * Large file compilation environment control:
188 204 *
189 205 * The setting of _FILE_OFFSET_BITS controls the size of various file-related
190 206 * types and governs the mapping between file-related source function symbol
191 207 * names and the corresponding binary entry points.
192 208 *
193 209 * In the 32-bit environment, the default value is 32; if not set, set it to
194 210 * the default here, to simplify tests in other headers.
195 211 *
196 212 * In the 64-bit compilation environment, the only value allowed is 64.
197 213 */
198 214 #if defined(_LP64)
199 215 #ifndef _FILE_OFFSET_BITS
200 216 #define _FILE_OFFSET_BITS 64
201 217 #endif
202 218 #if _FILE_OFFSET_BITS - 0 != 64
203 219 #error "invalid _FILE_OFFSET_BITS value specified"
204 220 #endif
205 221 #else /* _LP64 */
206 222 #ifndef _FILE_OFFSET_BITS
207 223 #define _FILE_OFFSET_BITS 32
208 224 #endif
209 225 #if _FILE_OFFSET_BITS - 0 != 32 && _FILE_OFFSET_BITS - 0 != 64
210 226 #error "invalid _FILE_OFFSET_BITS value specified"
211 227 #endif
212 228 #endif /* _LP64 */
213 229
214 230 /*
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215 231 * Use of _XOPEN_SOURCE
216 232 *
217 233 * The following X/Open specifications are supported:
218 234 *
219 235 * X/Open Portability Guide, Issue 3 (XPG3)
220 236 * X/Open CAE Specification, Issue 4 (XPG4)
221 237 * X/Open CAE Specification, Issue 4, Version 2 (XPG4v2)
222 238 * X/Open CAE Specification, Issue 5 (XPG5)
223 239 * Open Group Technical Standard, Issue 6 (XPG6), also referred to as
224 240 * IEEE Std. 1003.1-2001 and ISO/IEC 9945:2002.
241 + * Open Group Technical Standard, Issue 7 (XPG7), also referred to as
242 + * IEEE Std. 1003.1-2008 and ISO/IEC 9945:2009.
225 243 *
226 244 * XPG4v2 is also referred to as UNIX 95 (SUS or SUSv1).
227 245 * XPG5 is also referred to as UNIX 98 or the Single Unix Specification,
228 246 * Version 2 (SUSv2)
229 247 * XPG6 is the result of a merge of the X/Open and POSIX specifications
230 248 * and as such is also referred to as IEEE Std. 1003.1-2001 in
231 249 * addition to UNIX 03 and SUSv3.
250 + * XPG7 is also referred to as UNIX 08 and SUSv4.
232 251 *
233 252 * When writing a conforming X/Open application, as per the specification
234 253 * requirements, the appropriate feature test macros must be defined at
235 254 * compile time. These are as follows. For more info, see standards(5).
236 255 *
237 256 * Feature Test Macro Specification
238 257 * ------------------------------------------------ -------------
239 258 * _XOPEN_SOURCE XPG3
240 259 * _XOPEN_SOURCE && _XOPEN_VERSION = 4 XPG4
241 260 * _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1 XPG4v2
242 261 * _XOPEN_SOURCE = 500 XPG5
243 262 * _XOPEN_SOURCE = 600 (or POSIX_C_SOURCE=200112L) XPG6
263 + * _XOPEN_SOURCE = 700 (or POSIX_C_SOURCE=200809L) XPG7
244 264 *
245 265 * In order to simplify the guards within the headers, the following
246 266 * implementation private test macros have been created. Applications
247 267 * must NOT use these private test macros as unexpected results will
248 268 * occur.
249 269 *
250 270 * Note that in general, the use of these private macros is cumulative.
251 271 * For example, the use of _XPG3 with no other restrictions on the X/Open
252 272 * namespace will make the symbols visible for XPG3 through XPG6
253 273 * compilation environments. The use of _XPG4_2 with no other X/Open
254 274 * namespace restrictions indicates that the symbols were introduced in
255 275 * XPG4v2 and are therefore visible for XPG4v2 through XPG6 compilation
256 276 * environments, but not for XPG3 or XPG4 compilation environments.
257 277 *
258 278 * _XPG3 X/Open Portability Guide, Issue 3 (XPG3)
259 279 * _XPG4 X/Open CAE Specification, Issue 4 (XPG4)
260 280 * _XPG4_2 X/Open CAE Specification, Issue 4, Version 2 (XPG4v2/UNIX 95/SUS)
261 281 * _XPG5 X/Open CAE Specification, Issue 5 (XPG5/UNIX 98/SUSv2)
262 282 * _XPG6 Open Group Technical Standard, Issue 6 (XPG6/UNIX 03/SUSv3)
283 + * _XPG7 Open Group Technical Standard, Issue 7 (XPG7/UNIX 08/SUSv4)
263 284 */
264 285
265 286 /* X/Open Portability Guide, Issue 3 */
266 287 #if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0 < 500) && \
267 288 (_XOPEN_VERSION - 0 < 4) && !defined(_XOPEN_SOURCE_EXTENDED)
268 289 #define _XPG3
269 290 /* X/Open CAE Specification, Issue 4 */
270 291 #elif (defined(_XOPEN_SOURCE) && _XOPEN_VERSION - 0 == 4)
271 292 #define _XPG4
272 293 #define _XPG3
273 294 /* X/Open CAE Specification, Issue 4, Version 2 */
274 295 #elif (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE_EXTENDED - 0 == 1)
275 296 #define _XPG4_2
276 297 #define _XPG4
277 298 #define _XPG3
278 299 /* X/Open CAE Specification, Issue 5 */
279 300 #elif (_XOPEN_SOURCE - 0 == 500)
280 301 #define _XPG5
281 302 #define _XPG4_2
282 303 #define _XPG4
283 304 #define _XPG3
284 305 #undef _POSIX_C_SOURCE
285 306 #define _POSIX_C_SOURCE 199506L
286 307 /* Open Group Technical Standard , Issue 6 */
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287 308 #elif (_XOPEN_SOURCE - 0 == 600) || (_POSIX_C_SOURCE - 0 == 200112L)
288 309 #define _XPG6
289 310 #define _XPG5
290 311 #define _XPG4_2
291 312 #define _XPG4
292 313 #define _XPG3
293 314 #undef _POSIX_C_SOURCE
294 315 #define _POSIX_C_SOURCE 200112L
295 316 #undef _XOPEN_SOURCE
296 317 #define _XOPEN_SOURCE 600
318 +
319 +/* Open Group Technical Standard, Issue 7 */
320 +#elif (_XOPEN_SOURCE - 0 == 700) || (_POSIX_C_SOURCE - 0 == 200809L)
321 +#define _XPG7
322 +#define _XPG6
323 +#define _XPG5
324 +#define _XPG4_2
325 +#define _XPG4
326 +#define _XPG3
327 +#undef _POSIX_C_SOURCE
328 +#define _POSIX_C_SOURCE 200809L
329 +#undef _XOPEN_SOURCE
330 +#define _XOPEN_SOURCE 700
297 331 #endif
298 332
299 333 /*
300 334 * _XOPEN_VERSION is defined by the X/Open specifications and is not
301 335 * normally defined by the application, except in the case of an XPG4
302 336 * application. On the implementation side, _XOPEN_VERSION defined with
303 337 * the value of 3 indicates an XPG3 application. _XOPEN_VERSION defined
304 338 * with the value of 4 indicates an XPG4 or XPG4v2 (UNIX 95) application.
305 339 * _XOPEN_VERSION defined with a value of 500 indicates an XPG5 (UNIX 98)
306 340 * application and with a value of 600 indicates an XPG6 (UNIX 03)
307 - * application. The appropriate version is determined by the use of the
341 + * application and with a value of 700 indicates an XPG7 (UNIX 08).
342 + * The appropriate version is determined by the use of the
308 343 * feature test macros described earlier. The value of _XOPEN_VERSION
309 344 * defaults to 3 otherwise indicating support for XPG3 applications.
310 345 */
311 346 #ifndef _XOPEN_VERSION
312 -#ifdef _XPG6
347 +#if defined(_XPG7)
348 +#define _XOPEN_VERSION 700
349 +#elif defined(_XPG6)
313 350 #define _XOPEN_VERSION 600
314 351 #elif defined(_XPG5)
315 352 #define _XOPEN_VERSION 500
316 353 #elif defined(_XPG4_2)
317 354 #define _XOPEN_VERSION 4
318 355 #else
319 356 #define _XOPEN_VERSION 3
320 357 #endif
321 358 #endif
322 359
323 360 /*
324 361 * ANSI C and ISO 9899:1990 say the type long long doesn't exist in strictly
325 362 * conforming environments. ISO 9899:1999 says it does.
326 363 *
327 364 * The presence of _LONGLONG_TYPE says "long long exists" which is therefore
328 365 * defined in all but strictly conforming environments that disallow it.
329 366 */
330 367 #if !defined(_STDC_C99) && defined(_STRICT_STDC) && !defined(__GNUC__)
331 368 /*
332 369 * Resist attempts to force the definition of long long in this case.
333 370 */
334 371 #if defined(_LONGLONG_TYPE)
335 372 #error "No long long in strictly conforming ANSI C & 1990 ISO C environments"
336 373 #endif
337 374 #else
338 375 #if !defined(_LONGLONG_TYPE)
339 376 #define _LONGLONG_TYPE
340 377 #endif
341 378 #endif
342 379
343 380 /*
344 381 * It is invalid to compile an XPG3, XPG4, XPG4v2, or XPG5 application
345 382 * using c99. The same is true for POSIX.1-1990, POSIX.2-1992, POSIX.1b,
346 383 * and POSIX.1c applications. Likewise, it is invalid to compile an XPG6
347 384 * or a POSIX.1-2001 application with anything other than a c99 or later
348 385 * compiler. Therefore, we force an error in both cases.
349 386 */
350 387 #if defined(_STDC_C99) && (defined(__XOPEN_OR_POSIX) && !defined(_XPG6))
351 388 #error "Compiler or options invalid for pre-UNIX 03 X/Open applications \
352 389 and pre-2001 POSIX applications"
353 390 #elif !defined(_STDC_C99) && \
354 391 (defined(__XOPEN_OR_POSIX) && defined(_XPG6))
355 392 #error "Compiler or options invalid; UNIX 03 and POSIX.1-2001 applications \
356 393 require the use of c99"
357 394 #endif
358 395
359 396 /*
360 397 * The following macro defines a value for the ISO C99 restrict
361 398 * keyword so that _RESTRICT_KYWD resolves to "restrict" if
362 399 * an ISO C99 compiler is used and "" (null string) if any other
363 400 * compiler is used. This allows for the use of single prototype
364 401 * declarations regardless of compiler version.
365 402 */
366 403 #if (defined(__STDC__) && defined(_STDC_C99)) && !defined(__cplusplus)
367 404 #define _RESTRICT_KYWD restrict
368 405 #else
369 406 #define _RESTRICT_KYWD
370 407 #endif
371 408
372 409 /*
373 410 * The following macro indicates header support for the ANSI C++
374 411 * standard. The ISO/IEC designation for this is ISO/IEC FDIS 14882.
375 412 */
376 413 #define _ISO_CPP_14882_1998
377 414
378 415 /*
379 416 * The following macro indicates header support for the C99 standard,
380 417 * ISO/IEC 9899:1999, Programming Languages - C.
381 418 */
382 419 #define _ISO_C_9899_1999
383 420
384 421 /*
385 422 * The following macro indicates header support for DTrace. The value is an
386 423 * integer that corresponds to the major version number for DTrace.
387 424 */
388 425 #define _DTRACE_VERSION 1
389 426
390 427 #ifdef __cplusplus
391 428 }
392 429 #endif
393 430
394 431 #endif /* _SYS_FEATURE_TESTS_H */
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