1 /* $NetBSD: _elftc.h,v 1.2 2014/03/09 16:58:03 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 Joseph Koshy 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * Id: _elftc.h 2922 2013-03-17 22:53:15Z kaiwang27 29 */ 30 31 /** 32 ** Miscellanous definitions needed by multiple components. 33 **/ 34 35 #ifndef _ELFTC_H 36 #define _ELFTC_H 37 38 #ifndef NULL 39 #define NULL ((void *) 0) 40 #endif 41 42 #ifndef offsetof 43 #define offsetof(T, M) ((int) &((T*) 0) -> M) 44 #endif 45 46 /* --QUEUE-MACROS-- [[ */ 47 48 /* 49 * Supply macros missing from <sys/queue.h> 50 */ 51 52 /* 53 * Copyright (c) 1991, 1993 54 * The Regents of the University of California. All rights reserved. 55 * 56 * Redistribution and use in source and binary forms, with or without 57 * modification, are permitted provided that the following conditions 58 * are met: 59 * 1. Redistributions of source code must retain the above copyright 60 * notice, this list of conditions and the following disclaimer. 61 * 2. Redistributions in binary form must reproduce the above copyright 62 * notice, this list of conditions and the following disclaimer in the 63 * documentation and/or other materials provided with the distribution. 64 * 3. Neither the name of the University nor the names of its contributors 65 * may be used to endorse or promote products derived from this software 66 * without specific prior written permission. 67 * 68 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 69 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 70 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 71 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 72 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 73 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 74 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 75 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 76 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 77 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 78 * SUCH DAMAGE. 79 */ 80 81 #ifndef SLIST_FOREACH_SAFE 82 #define SLIST_FOREACH_SAFE(var, head, field, tvar) \ 83 for ((var) = SLIST_FIRST((head)); \ 84 (var) && ((tvar) = SLIST_NEXT((var), field), 1); \ 85 (var) = (tvar)) 86 #endif 87 88 #ifndef STAILQ_CONCAT 89 #define STAILQ_CONCAT(head1, head2) do { \ 90 if (!STAILQ_EMPTY((head2))) { \ 91 *(head1)->stqh_last = (head2)->stqh_first; \ 92 (head1)->stqh_last = (head2)->stqh_last; \ 93 STAILQ_INIT((head2)); \ 94 } \ 95 } while (/*CONSTCOND*/0) 96 #endif 97 98 #ifndef STAILQ_EMPTY 99 #define STAILQ_EMPTY(head) ((head)->stqh_first == NULL) 100 #endif 101 102 #ifndef STAILQ_ENTRY 103 #define STAILQ_ENTRY(type) \ 104 struct { \ 105 struct type *stqe_next; /* next element */ \ 106 } 107 #endif 108 109 #ifndef STAILQ_FIRST 110 #define STAILQ_FIRST(head) ((head)->stqh_first) 111 #endif 112 113 #ifndef STAILQ_HEAD 114 #define STAILQ_HEAD(name, type) \ 115 struct name { \ 116 struct type *stqh_first; /* first element */ \ 117 struct type **stqh_last; /* addr of last next element */ \ 118 } 119 #endif 120 121 #ifndef STAILQ_HEAD_INITIALIZER 122 #define STAILQ_HEAD_INITIALIZER(head) \ 123 { NULL, &(head).stqh_first } 124 #endif 125 126 #ifndef STAILQ_FOREACH 127 #define STAILQ_FOREACH(var, head, field) \ 128 for ((var) = ((head)->stqh_first); \ 129 (var); \ 130 (var) = ((var)->field.stqe_next)) 131 #endif 132 133 #ifndef STAILQ_FOREACH_SAFE 134 #define STAILQ_FOREACH_SAFE(var, head, field, tvar) \ 135 for ((var) = STAILQ_FIRST((head)); \ 136 (var) && ((tvar) = STAILQ_NEXT((var), field), 1); \ 137 (var) = (tvar)) 138 #endif 139 140 #ifndef STAILQ_INIT 141 #define STAILQ_INIT(head) do { \ 142 (head)->stqh_first = NULL; \ 143 (head)->stqh_last = &(head)->stqh_first; \ 144 } while (/*CONSTCOND*/0) 145 #endif 146 147 #ifndef STAILQ_INSERT_HEAD 148 #define STAILQ_INSERT_HEAD(head, elm, field) do { \ 149 if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \ 150 (head)->stqh_last = &(elm)->field.stqe_next; \ 151 (head)->stqh_first = (elm); \ 152 } while (/*CONSTCOND*/0) 153 #endif 154 155 #ifndef STAILQ_INSERT_TAIL 156 #define STAILQ_INSERT_TAIL(head, elm, field) do { \ 157 (elm)->field.stqe_next = NULL; \ 158 *(head)->stqh_last = (elm); \ 159 (head)->stqh_last = &(elm)->field.stqe_next; \ 160 } while (/*CONSTCOND*/0) 161 #endif 162 163 #ifndef STAILQ_INSERT_AFTER 164 #define STAILQ_INSERT_AFTER(head, listelm, elm, field) do { \ 165 if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\ 166 (head)->stqh_last = &(elm)->field.stqe_next; \ 167 (listelm)->field.stqe_next = (elm); \ 168 } while (/*CONSTCOND*/0) 169 #endif 170 171 #ifndef STAILQ_LAST 172 #define STAILQ_LAST(head, type, field) \ 173 (STAILQ_EMPTY((head)) ? \ 174 NULL : ((struct type *)(void *) \ 175 ((char *)((head)->stqh_last) - offsetof(struct type, field)))) 176 #endif 177 178 #ifndef STAILQ_NEXT 179 #define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next) 180 #endif 181 182 #ifndef STAILQ_REMOVE 183 #define STAILQ_REMOVE(head, elm, type, field) do { \ 184 if ((head)->stqh_first == (elm)) { \ 185 STAILQ_REMOVE_HEAD((head), field); \ 186 } else { \ 187 struct type *curelm = (head)->stqh_first; \ 188 while (curelm->field.stqe_next != (elm)) \ 189 curelm = curelm->field.stqe_next; \ 190 if ((curelm->field.stqe_next = \ 191 curelm->field.stqe_next->field.stqe_next) == NULL) \ 192 (head)->stqh_last = &(curelm)->field.stqe_next; \ 193 } \ 194 } while (/*CONSTCOND*/0) 195 #endif 196 197 #ifndef STAILQ_REMOVE_HEAD 198 #define STAILQ_REMOVE_HEAD(head, field) do { \ 199 if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == \ 200 NULL) \ 201 (head)->stqh_last = &(head)->stqh_first; \ 202 } while (/*CONSTCOND*/0) 203 #endif 204 205 /* 206 * The STAILQ_SORT macro is adapted from Simon Tatham's O(n*log(n)) 207 * mergesort algorithm. 208 */ 209 #ifndef STAILQ_SORT 210 #define STAILQ_SORT(head, type, field, cmp) do { \ 211 STAILQ_HEAD(, type) _la, _lb; \ 212 struct type *_p, *_q, *_e; \ 213 int _i, _sz, _nmerges, _psz, _qsz; \ 214 \ 215 _sz = 1; \ 216 do { \ 217 _nmerges = 0; \ 218 STAILQ_INIT(&_lb); \ 219 while (!STAILQ_EMPTY((head))) { \ 220 _nmerges++; \ 221 STAILQ_INIT(&_la); \ 222 _psz = 0; \ 223 for (_i = 0; _i < _sz && !STAILQ_EMPTY((head)); \ 224 _i++) { \ 225 _e = STAILQ_FIRST((head)); \ 226 if (_e == NULL) \ 227 break; \ 228 _psz++; \ 229 STAILQ_REMOVE_HEAD((head), field); \ 230 STAILQ_INSERT_TAIL(&_la, _e, field); \ 231 } \ 232 _p = STAILQ_FIRST(&_la); \ 233 _qsz = _sz; \ 234 _q = STAILQ_FIRST((head)); \ 235 while (_psz > 0 || (_qsz > 0 && _q != NULL)) { \ 236 if (_psz == 0) { \ 237 _e = _q; \ 238 _q = STAILQ_NEXT(_q, field); \ 239 STAILQ_REMOVE_HEAD((head), \ 240 field); \ 241 _qsz--; \ 242 } else if (_qsz == 0 || _q == NULL) { \ 243 _e = _p; \ 244 _p = STAILQ_NEXT(_p, field); \ 245 STAILQ_REMOVE_HEAD(&_la, field);\ 246 _psz--; \ 247 } else if (cmp(_p, _q) <= 0) { \ 248 _e = _p; \ 249 _p = STAILQ_NEXT(_p, field); \ 250 STAILQ_REMOVE_HEAD(&_la, field);\ 251 _psz--; \ 252 } else { \ 253 _e = _q; \ 254 _q = STAILQ_NEXT(_q, field); \ 255 STAILQ_REMOVE_HEAD((head), \ 256 field); \ 257 _qsz--; \ 258 } \ 259 STAILQ_INSERT_TAIL(&_lb, _e, field); \ 260 } \ 261 } \ 262 (head)->stqh_first = _lb.stqh_first; \ 263 (head)->stqh_last = _lb.stqh_last; \ 264 _sz *= 2; \ 265 } while (_nmerges > 1); \ 266 } while (/*CONSTCOND*/0) 267 #endif 268 269 #ifndef TAILQ_FOREACH_SAFE 270 #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \ 271 for ((var) = TAILQ_FIRST((head)); \ 272 (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \ 273 (var) = (tvar)) 274 #endif 275 276 /* ]] --QUEUE-MACROS-- */ 277 278 /* 279 * VCS Ids. 280 */ 281 282 #ifndef ELFTC_VCSID 283 284 #if defined(__DragonFly__) 285 #define ELFTC_VCSID(ID) __RCSID(ID) 286 #endif 287 288 #if defined(__FreeBSD__) 289 #define ELFTC_VCSID(ID) __FBSDID(ID) 290 #endif 291 292 #if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 293 #if defined(__GNUC__) 294 #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") 295 #else 296 #define ELFTC_VCSID(ID) /**/ 297 #endif 298 #endif 299 300 #if defined(__minix) 301 #if defined(__GNUC__) 302 #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") 303 #else 304 #define ELFTC_VCSID(ID) /**/ 305 #endif /* __GNU__ */ 306 #endif 307 308 #if defined(__NetBSD__) 309 #define ELFTC_VCSID(ID) __RCSID(ID) 310 #endif 311 312 #if defined(__OpenBSD__) 313 #if defined(__GNUC__) 314 #define ELFTC_VCSID(ID) __asm__(".ident\t\"" ID "\"") 315 #else 316 #define ELFTC_VCSID(ID) /**/ 317 #endif /* __GNUC__ */ 318 #endif 319 320 #endif /* ELFTC_VCSID */ 321 322 /* 323 * Provide an equivalent for getprogname(3). 324 */ 325 326 #ifndef ELFTC_GETPROGNAME 327 328 #if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__minix) || \ 329 defined(__NetBSD__) 330 331 #include <stdlib.h> 332 333 #define ELFTC_GETPROGNAME() getprogname() 334 335 #endif /* __DragonFly__ || __FreeBSD__ || __minix || __NetBSD__ */ 336 337 338 #if defined(__GLIBC__) 339 340 /* 341 * GLIBC based systems have a global 'char *' pointer referencing 342 * the executable's name. 343 */ 344 extern const char *program_invocation_short_name; 345 346 #define ELFTC_GETPROGNAME() program_invocation_short_name 347 348 #endif /* __GLIBC__ */ 349 350 351 #if defined(__OpenBSD__) 352 353 extern const char *__progname; 354 355 #define ELFTC_GETPROGNAME() __progname 356 357 #endif /* __OpenBSD__ */ 358 359 #endif /* ELFTC_GETPROGNAME */ 360 361 362 /** 363 ** Per-OS configuration. 364 **/ 365 366 #if defined(__DragonFly__) 367 368 #include <osreldate.h> 369 #include <sys/endian.h> 370 371 #define ELFTC_BYTE_ORDER _BYTE_ORDER 372 #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN 373 #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN 374 375 #define ELFTC_HAVE_MMAP 1 376 377 #endif 378 379 #if defined(__GLIBC__) 380 381 #include <endian.h> 382 383 #define ELFTC_BYTE_ORDER __BYTE_ORDER 384 #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN __LITTLE_ENDIAN 385 #define ELFTC_BYTE_ORDER_BIG_ENDIAN __BIG_ENDIAN 386 387 #define ELFTC_HAVE_MMAP 1 388 389 /* 390 * Debian GNU/Linux and Debian GNU/kFreeBSD do not have strmode(3). 391 */ 392 #define ELFTC_HAVE_STRMODE 0 393 394 /* Whether we need to supply {be,le}32dec. */ 395 #define ELFTC_NEED_BYTEORDER_EXTENSIONS 1 396 397 #define roundup2 roundup 398 399 #endif /* __GLIBC__ */ 400 401 402 #if defined(__FreeBSD__) 403 404 #include <osreldate.h> 405 #include <sys/endian.h> 406 407 #define ELFTC_BYTE_ORDER _BYTE_ORDER 408 #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN 409 #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN 410 411 #define ELFTC_HAVE_MMAP 1 412 #define ELFTC_HAVE_STRMODE 1 413 #if __FreeBSD_version <= 900000 414 #define ELFTC_BROKEN_YY_NO_INPUT 1 415 #endif 416 #endif /* __FreeBSD__ */ 417 418 419 #if defined(__minix) 420 #define ELFTC_HAVE_MMAP 0 421 #endif /* __minix */ 422 423 424 #if defined(__NetBSD__) 425 426 #include <sys/param.h> 427 #include <sys/endian.h> 428 429 #define ELFTC_BYTE_ORDER _BYTE_ORDER 430 #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN 431 #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN 432 433 #define ELFTC_HAVE_MMAP 1 434 #define ELFTC_HAVE_STRMODE 1 435 #if __NetBSD_Version__ <= 599002100 436 /* from src/doc/CHANGES: flex(1): Import flex-2.5.35 [christos 20091025] */ 437 /* and 5.99.21 was from Wed Oct 21 21:28:36 2009 UTC */ 438 # define ELFTC_BROKEN_YY_NO_INPUT 1 439 #endif 440 #endif /* __NetBSD __ */ 441 442 443 #if defined(__OpenBSD__) 444 445 #include <sys/param.h> 446 #include <sys/endian.h> 447 448 #define ELFTC_BYTE_ORDER _BYTE_ORDER 449 #define ELFTC_BYTE_ORDER_LITTLE_ENDIAN _LITTLE_ENDIAN 450 #define ELFTC_BYTE_ORDER_BIG_ENDIAN _BIG_ENDIAN 451 452 #define ELFTC_HAVE_MMAP 1 453 #define ELFTC_HAVE_STRMODE 1 454 455 #define ELFTC_NEED_BYTEORDER_EXTENSIONS 1 456 #define roundup2 roundup 457 458 #endif /* __OpenBSD__ */ 459 460 #endif /* _ELFTC_H */ 461