Mercurial > hg > CbC > CbC_gcc
comparison gcc/system.h @ 0:a06113de4d67
first commit
author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 77e2b8dfacca |
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1 /* Get common system includes and various definitions and declarations based | |
2 on autoconf macros. | |
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008 | |
4 Free Software Foundation, Inc. | |
5 | |
6 This file is part of GCC. | |
7 | |
8 GCC is free software; you can redistribute it and/or modify it under | |
9 the terms of the GNU General Public License as published by the Free | |
10 Software Foundation; either version 3, or (at your option) any later | |
11 version. | |
12 | |
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
19 along with GCC; see the file COPYING3. If not see | |
20 <http://www.gnu.org/licenses/>. */ | |
21 | |
22 | |
23 #ifndef GCC_SYSTEM_H | |
24 #define GCC_SYSTEM_H | |
25 | |
26 /* We must include stdarg.h before stdio.h. */ | |
27 #include <stdarg.h> | |
28 | |
29 #ifndef va_copy | |
30 # ifdef __va_copy | |
31 # define va_copy(d,s) __va_copy((d),(s)) | |
32 # else | |
33 # define va_copy(d,s) ((d) = (s)) | |
34 # endif | |
35 #endif | |
36 | |
37 #ifdef HAVE_STDDEF_H | |
38 # include <stddef.h> | |
39 #endif | |
40 | |
41 #include <stdio.h> | |
42 | |
43 /* Define a generic NULL if one hasn't already been defined. */ | |
44 #ifndef NULL | |
45 #define NULL 0 | |
46 #endif | |
47 | |
48 /* Use the unlocked open routines from libiberty. */ | |
49 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) | |
50 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) | |
51 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) | |
52 | |
53 /* The compiler is not a multi-threaded application and therefore we | |
54 do not have to use the locking functions. In fact, using the locking | |
55 functions can cause the compiler to be significantly slower under | |
56 I/O bound conditions (such as -g -O0 on very large source files). | |
57 | |
58 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio | |
59 code is multi-thread safe by default. If it is set to 0, then do | |
60 not worry about using the _unlocked functions. | |
61 | |
62 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are | |
63 extensions and need to be prototyped by hand (since we do not | |
64 define _GNU_SOURCE). */ | |
65 | |
66 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED | |
67 | |
68 # ifdef HAVE_PUTC_UNLOCKED | |
69 # undef putc | |
70 # define putc(C, Stream) putc_unlocked (C, Stream) | |
71 # endif | |
72 # ifdef HAVE_PUTCHAR_UNLOCKED | |
73 # undef putchar | |
74 # define putchar(C) putchar_unlocked (C) | |
75 # endif | |
76 # ifdef HAVE_GETC_UNLOCKED | |
77 # undef getc | |
78 # define getc(Stream) getc_unlocked (Stream) | |
79 # endif | |
80 # ifdef HAVE_GETCHAR_UNLOCKED | |
81 # undef getchar | |
82 # define getchar() getchar_unlocked () | |
83 # endif | |
84 # ifdef HAVE_FPUTC_UNLOCKED | |
85 # undef fputc | |
86 # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
87 # endif | |
88 | |
89 # ifdef HAVE_CLEARERR_UNLOCKED | |
90 # undef clearerr | |
91 # define clearerr(Stream) clearerr_unlocked (Stream) | |
92 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED | |
93 extern void clearerr_unlocked (FILE *); | |
94 # endif | |
95 # endif | |
96 # ifdef HAVE_FEOF_UNLOCKED | |
97 # undef feof | |
98 # define feof(Stream) feof_unlocked (Stream) | |
99 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED | |
100 extern int feof_unlocked (FILE *); | |
101 # endif | |
102 # endif | |
103 # ifdef HAVE_FILENO_UNLOCKED | |
104 # undef fileno | |
105 # define fileno(Stream) fileno_unlocked (Stream) | |
106 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED | |
107 extern int fileno_unlocked (FILE *); | |
108 # endif | |
109 # endif | |
110 # ifdef HAVE_FFLUSH_UNLOCKED | |
111 # undef fflush | |
112 # define fflush(Stream) fflush_unlocked (Stream) | |
113 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED | |
114 extern int fflush_unlocked (FILE *); | |
115 # endif | |
116 # endif | |
117 # ifdef HAVE_FGETC_UNLOCKED | |
118 # undef fgetc | |
119 # define fgetc(Stream) fgetc_unlocked (Stream) | |
120 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED | |
121 extern int fgetc_unlocked (FILE *); | |
122 # endif | |
123 # endif | |
124 # ifdef HAVE_FGETS_UNLOCKED | |
125 # undef fgets | |
126 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) | |
127 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED | |
128 extern char *fgets_unlocked (char *, int, FILE *); | |
129 # endif | |
130 # endif | |
131 # ifdef HAVE_FPUTS_UNLOCKED | |
132 # undef fputs | |
133 # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
134 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
135 extern int fputs_unlocked (const char *, FILE *); | |
136 # endif | |
137 # endif | |
138 # ifdef HAVE_FERROR_UNLOCKED | |
139 # undef ferror | |
140 # define ferror(Stream) ferror_unlocked (Stream) | |
141 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED | |
142 extern int ferror_unlocked (FILE *); | |
143 # endif | |
144 # endif | |
145 # ifdef HAVE_FREAD_UNLOCKED | |
146 # undef fread | |
147 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) | |
148 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED | |
149 extern size_t fread_unlocked (void *, size_t, size_t, FILE *); | |
150 # endif | |
151 # endif | |
152 # ifdef HAVE_FWRITE_UNLOCKED | |
153 # undef fwrite | |
154 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
155 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
156 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); | |
157 # endif | |
158 # endif | |
159 # ifdef HAVE_FPRINTF_UNLOCKED | |
160 # undef fprintf | |
161 /* We can't use a function-like macro here because we don't know if | |
162 we have varargs macros. */ | |
163 # define fprintf fprintf_unlocked | |
164 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
165 extern int fprintf_unlocked (FILE *, const char *, ...); | |
166 # endif | |
167 # endif | |
168 | |
169 #endif | |
170 | |
171 /* ??? Glibc's fwrite/fread_unlocked macros cause | |
172 "warning: signed and unsigned type in conditional expression". */ | |
173 #undef fread_unlocked | |
174 #undef fwrite_unlocked | |
175 | |
176 /* There are an extraordinary number of issues with <ctype.h>. | |
177 The last straw is that it varies with the locale. Use libiberty's | |
178 replacement instead. */ | |
179 #include <safe-ctype.h> | |
180 | |
181 #include <sys/types.h> | |
182 | |
183 #include <errno.h> | |
184 | |
185 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO | |
186 extern int errno; | |
187 #endif | |
188 | |
189 /* Some of glibc's string inlines cause warnings. Plus we'd rather | |
190 rely on (and therefore test) GCC's string builtins. */ | |
191 #define __NO_STRING_INLINES | |
192 | |
193 #ifdef STRING_WITH_STRINGS | |
194 # include <string.h> | |
195 # include <strings.h> | |
196 #else | |
197 # ifdef HAVE_STRING_H | |
198 # include <string.h> | |
199 # else | |
200 # ifdef HAVE_STRINGS_H | |
201 # include <strings.h> | |
202 # endif | |
203 # endif | |
204 #endif | |
205 | |
206 #ifdef HAVE_STDLIB_H | |
207 # include <stdlib.h> | |
208 #endif | |
209 | |
210 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and | |
211 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, | |
212 or 0 and 1 if those macros are not defined. */ | |
213 #ifndef SUCCESS_EXIT_CODE | |
214 # ifdef EXIT_SUCCESS | |
215 # define SUCCESS_EXIT_CODE EXIT_SUCCESS | |
216 # else | |
217 # define SUCCESS_EXIT_CODE 0 | |
218 # endif | |
219 #endif | |
220 | |
221 #ifndef FATAL_EXIT_CODE | |
222 # ifdef EXIT_FAILURE | |
223 # define FATAL_EXIT_CODE EXIT_FAILURE | |
224 # else | |
225 # define FATAL_EXIT_CODE 1 | |
226 # endif | |
227 #endif | |
228 | |
229 #define ICE_EXIT_CODE 4 | |
230 | |
231 #ifdef HAVE_UNISTD_H | |
232 # include <unistd.h> | |
233 #endif | |
234 | |
235 #ifdef HAVE_SYS_PARAM_H | |
236 # include <sys/param.h> | |
237 /* We use this identifier later and it appears in some vendor param.h's. */ | |
238 # undef PREFETCH | |
239 #endif | |
240 | |
241 #if HAVE_LIMITS_H | |
242 # include <limits.h> | |
243 #endif | |
244 | |
245 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ | |
246 #include "hwint.h" | |
247 | |
248 /* A macro to determine whether a VALUE lies inclusively within a | |
249 certain range without evaluating the VALUE more than once. This | |
250 macro won't warn if the VALUE is unsigned and the LOWER bound is | |
251 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER | |
252 bound *is* evaluated twice, and LOWER must not be greater than | |
253 UPPER. However the bounds themselves can be either positive or | |
254 negative. */ | |
255 #define IN_RANGE(VALUE, LOWER, UPPER) \ | |
256 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \ | |
257 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER)) | |
258 | |
259 /* Infrastructure for defining missing _MAX and _MIN macros. Note that | |
260 macros defined with these cannot be used in #if. */ | |
261 | |
262 /* The extra casts work around common compiler bugs. */ | |
263 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
264 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
265 It is necessary at least when t == time_t. */ | |
266 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
267 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) | |
268 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) | |
269 | |
270 /* Use that infrastructure to provide a few constants. */ | |
271 #ifndef UCHAR_MAX | |
272 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
273 #endif | |
274 | |
275 #ifdef TIME_WITH_SYS_TIME | |
276 # include <sys/time.h> | |
277 # include <time.h> | |
278 #else | |
279 # if HAVE_SYS_TIME_H | |
280 # include <sys/time.h> | |
281 # else | |
282 # ifdef HAVE_TIME_H | |
283 # include <time.h> | |
284 # endif | |
285 # endif | |
286 #endif | |
287 | |
288 #ifdef HAVE_FCNTL_H | |
289 # include <fcntl.h> | |
290 #else | |
291 # ifdef HAVE_SYS_FILE_H | |
292 # include <sys/file.h> | |
293 # endif | |
294 #endif | |
295 | |
296 #ifndef SEEK_SET | |
297 # define SEEK_SET 0 | |
298 # define SEEK_CUR 1 | |
299 # define SEEK_END 2 | |
300 #endif | |
301 #ifndef F_OK | |
302 # define F_OK 0 | |
303 # define X_OK 1 | |
304 # define W_OK 2 | |
305 # define R_OK 4 | |
306 #endif | |
307 #ifndef O_RDONLY | |
308 # define O_RDONLY 0 | |
309 #endif | |
310 #ifndef O_WRONLY | |
311 # define O_WRONLY 1 | |
312 #endif | |
313 | |
314 /* Some systems define these in, e.g., param.h. We undefine these names | |
315 here to avoid the warnings. We prefer to use our definitions since we | |
316 know they are correct. */ | |
317 | |
318 #undef MIN | |
319 #undef MAX | |
320 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
321 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
322 | |
323 /* Returns the least number N such that N * Y >= X. */ | |
324 #define CEIL(x,y) (((x) + (y) - 1) / (y)) | |
325 | |
326 #ifdef HAVE_SYS_WAIT_H | |
327 #include <sys/wait.h> | |
328 #endif | |
329 | |
330 #ifndef WIFSIGNALED | |
331 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
332 #endif | |
333 #ifndef WTERMSIG | |
334 #define WTERMSIG(S) ((S) & 0x7f) | |
335 #endif | |
336 #ifndef WIFEXITED | |
337 #define WIFEXITED(S) (((S) & 0xff) == 0) | |
338 #endif | |
339 #ifndef WEXITSTATUS | |
340 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
341 #endif | |
342 #ifndef WSTOPSIG | |
343 #define WSTOPSIG WEXITSTATUS | |
344 #endif | |
345 #ifndef WCOREDUMP | |
346 #define WCOREDUMP(S) ((S) & WCOREFLG) | |
347 #endif | |
348 #ifndef WCOREFLG | |
349 #define WCOREFLG 0200 | |
350 #endif | |
351 | |
352 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they | |
353 are defined to 0 then we must provide the relevant declaration | |
354 here. These checks will be in the undefined state while configure | |
355 is running so be careful to test "defined (HAVE_DECL_*)". */ | |
356 | |
357 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF | |
358 extern double atof (const char *); | |
359 #endif | |
360 | |
361 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL | |
362 extern long atol (const char *); | |
363 #endif | |
364 | |
365 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE | |
366 extern void free (void *); | |
367 #endif | |
368 | |
369 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD | |
370 extern char *getcwd (char *, size_t); | |
371 #endif | |
372 | |
373 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV | |
374 extern char *getenv (const char *); | |
375 #endif | |
376 | |
377 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT | |
378 extern int getopt (int, char * const *, const char *); | |
379 #endif | |
380 | |
381 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE | |
382 extern int getpagesize (void); | |
383 #endif | |
384 | |
385 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD | |
386 extern char *getwd (char *); | |
387 #endif | |
388 | |
389 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK | |
390 extern void *sbrk (int); | |
391 #endif | |
392 | |
393 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR | |
394 extern char *strstr (const char *, const char *); | |
395 #endif | |
396 | |
397 #ifdef HAVE_MALLOC_H | |
398 #include <malloc.h> | |
399 #endif | |
400 | |
401 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC | |
402 extern void *malloc (size_t); | |
403 #endif | |
404 | |
405 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC | |
406 extern void *calloc (size_t, size_t); | |
407 #endif | |
408 | |
409 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC | |
410 extern void *realloc (void *, size_t); | |
411 #endif | |
412 | |
413 /* If the system doesn't provide strsignal, we get it defined in | |
414 libiberty but no declaration is supplied. */ | |
415 #if !defined (HAVE_STRSIGNAL) \ | |
416 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) | |
417 # ifndef strsignal | |
418 extern const char *strsignal (int); | |
419 # endif | |
420 #endif | |
421 | |
422 #ifdef HAVE_GETRLIMIT | |
423 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT | |
424 # ifndef getrlimit | |
425 struct rlimit; | |
426 extern int getrlimit (int, struct rlimit *); | |
427 # endif | |
428 # endif | |
429 #endif | |
430 | |
431 #ifdef HAVE_SETRLIMIT | |
432 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT | |
433 # ifndef setrlimit | |
434 struct rlimit; | |
435 extern int setrlimit (int, const struct rlimit *); | |
436 # endif | |
437 # endif | |
438 #endif | |
439 | |
440 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT | |
441 extern void abort (void); | |
442 #endif | |
443 | |
444 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF | |
445 extern int snprintf (char *, size_t, const char *, ...); | |
446 #endif | |
447 | |
448 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF | |
449 extern int vsnprintf(char *, size_t, const char *, va_list); | |
450 #endif | |
451 | |
452 /* 1 if we have C99 designated initializers. */ | |
453 #if !defined(HAVE_DESIGNATED_INITIALIZERS) | |
454 #define HAVE_DESIGNATED_INITIALIZERS \ | |
455 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) | |
456 #endif | |
457 | |
458 #if HAVE_SYS_STAT_H | |
459 # include <sys/stat.h> | |
460 #endif | |
461 | |
462 /* Test if something is a normal file. */ | |
463 #ifndef S_ISREG | |
464 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
465 #endif | |
466 | |
467 /* Test if something is a directory. */ | |
468 #ifndef S_ISDIR | |
469 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
470 #endif | |
471 | |
472 /* Test if something is a character special file. */ | |
473 #ifndef S_ISCHR | |
474 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
475 #endif | |
476 | |
477 /* Test if something is a block special file. */ | |
478 #ifndef S_ISBLK | |
479 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
480 #endif | |
481 | |
482 /* Test if something is a socket. */ | |
483 #ifndef S_ISSOCK | |
484 # ifdef S_IFSOCK | |
485 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
486 # else | |
487 # define S_ISSOCK(m) 0 | |
488 # endif | |
489 #endif | |
490 | |
491 /* Test if something is a FIFO. */ | |
492 #ifndef S_ISFIFO | |
493 # ifdef S_IFIFO | |
494 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
495 # else | |
496 # define S_ISFIFO(m) 0 | |
497 # endif | |
498 #endif | |
499 | |
500 /* Define well known filenos if the system does not define them. */ | |
501 #ifndef STDIN_FILENO | |
502 # define STDIN_FILENO 0 | |
503 #endif | |
504 #ifndef STDOUT_FILENO | |
505 # define STDOUT_FILENO 1 | |
506 #endif | |
507 #ifndef STDERR_FILENO | |
508 # define STDERR_FILENO 2 | |
509 #endif | |
510 | |
511 /* Some systems have mkdir that takes a single argument. */ | |
512 #ifdef MKDIR_TAKES_ONE_ARG | |
513 # define mkdir(a,b) mkdir(a) | |
514 #endif | |
515 | |
516 /* By default, colon separates directories in a path. */ | |
517 #ifndef PATH_SEPARATOR | |
518 #define PATH_SEPARATOR ':' | |
519 #endif | |
520 | |
521 /* Filename handling macros. */ | |
522 #include "filenames.h" | |
523 | |
524 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ | |
525 #ifndef DIR_SEPARATOR | |
526 # define DIR_SEPARATOR '/' | |
527 # ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
528 # define DIR_SEPARATOR_2 '\\' | |
529 # endif | |
530 #endif | |
531 | |
532 /* Get libiberty declarations. */ | |
533 #include "libiberty.h" | |
534 | |
535 /* Provide a default for the HOST_BIT_BUCKET. | |
536 This suffices for POSIX-like hosts. */ | |
537 | |
538 #ifndef HOST_BIT_BUCKET | |
539 #define HOST_BIT_BUCKET "/dev/null" | |
540 #endif | |
541 | |
542 /* Be conservative and only use enum bitfields with GCC. | |
543 FIXME: provide a complete autoconf test for buggy enum bitfields. */ | |
544 | |
545 #if (GCC_VERSION > 2000) | |
546 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE | |
547 #else | |
548 #define ENUM_BITFIELD(TYPE) unsigned int | |
549 #endif | |
550 | |
551 #ifndef offsetof | |
552 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) | |
553 #endif | |
554 | |
555 /* Various error reporting routines want to use __FUNCTION__. */ | |
556 #if (GCC_VERSION < 2007) | |
557 #ifndef __FUNCTION__ | |
558 #define __FUNCTION__ "?" | |
559 #endif /* ! __FUNCTION__ */ | |
560 #endif | |
561 | |
562 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that | |
563 the most likely value of A is B. This feature was added at some point | |
564 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
565 #if (GCC_VERSION < 3000) | |
566 #define __builtin_expect(a, b) (a) | |
567 #endif | |
568 | |
569 /* Redefine abort to report an internal error w/o coredump, and | |
570 reporting the location of the error in the source file. */ | |
571 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
572 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) | |
573 | |
574 /* Use gcc_assert(EXPR) to test invariants. */ | |
575 #if ENABLE_ASSERT_CHECKING | |
576 #define gcc_assert(EXPR) \ | |
577 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) | |
578 #else | |
579 /* Include EXPR, so that unused variable warnings do not occur. */ | |
580 #define gcc_assert(EXPR) ((void)(0 && (EXPR))) | |
581 #endif | |
582 | |
583 /* Use gcc_unreachable() to mark unreachable locations (like an | |
584 unreachable default case of a switch. Do not use gcc_assert(0). */ | |
585 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) | |
586 | |
587 /* Provide a fake boolean type. We make no attempt to use the | |
588 C99 _Bool, as it may not be available in the bootstrap compiler, | |
589 and even if it is, it is liable to be buggy. | |
590 This must be after all inclusion of system headers, as some of | |
591 them will mess us up. */ | |
592 | |
593 #undef TRUE | |
594 #undef FALSE | |
595 | |
596 #ifdef __cplusplus | |
597 /* Obsolete. */ | |
598 # define TRUE true | |
599 # define FALSE false | |
600 #else /* !__cplusplus */ | |
601 # undef bool | |
602 # undef true | |
603 # undef false | |
604 | |
605 # define bool unsigned char | |
606 # define true 1 | |
607 # define false 0 | |
608 | |
609 /* Obsolete. */ | |
610 # define TRUE true | |
611 # define FALSE false | |
612 #endif /* !__cplusplus */ | |
613 | |
614 /* Some compilers do not allow the use of unsigned char in bitfields. */ | |
615 #define BOOL_BITFIELD unsigned int | |
616 | |
617 /* As the last action in this file, we poison the identifiers that | |
618 shouldn't be used. Note, luckily gcc-3.0's token-based integrated | |
619 preprocessor won't trip on poisoned identifiers that arrive from | |
620 the expansion of macros. E.g. #define strrchr rindex, won't error | |
621 if rindex is poisoned after this directive is issued and later on | |
622 strrchr is called. | |
623 | |
624 Note: We define bypass macros for the few cases where we really | |
625 want to use the libc memory allocation routines. Otherwise we | |
626 insist you use the "x" versions from libiberty. */ | |
627 | |
628 #define really_call_malloc malloc | |
629 #define really_call_calloc calloc | |
630 #define really_call_realloc realloc | |
631 | |
632 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) | |
633 /* Flex and bison use malloc and realloc. Yuk. Note that this means | |
634 really_call_* cannot be used in a .l or .y file. */ | |
635 #define malloc xmalloc | |
636 #define realloc xrealloc | |
637 #endif | |
638 | |
639 #if (GCC_VERSION >= 3000) | |
640 | |
641 /* Note autoconf checks for prototype declarations and includes | |
642 system.h while doing so. Only poison these tokens if actually | |
643 compiling gcc, so that the autoconf declaration tests for malloc | |
644 etc don't spuriously fail. */ | |
645 #ifdef IN_GCC | |
646 #undef calloc | |
647 #undef strdup | |
648 #pragma GCC poison calloc strdup | |
649 | |
650 #if !defined(FLEX_SCANNER) && !defined(YYBISON) | |
651 #undef malloc | |
652 #undef realloc | |
653 #pragma GCC poison malloc realloc | |
654 #endif | |
655 | |
656 /* Old target macros that have moved to the target hooks structure. */ | |
657 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ | |
658 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ | |
659 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ | |
660 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ | |
661 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ | |
662 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ | |
663 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ | |
664 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ | |
665 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ | |
666 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ | |
667 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ | |
668 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ | |
669 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ | |
670 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ | |
671 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ | |
672 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ | |
673 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ | |
674 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ | |
675 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS \ | |
676 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ | |
677 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ | |
678 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ | |
679 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ | |
680 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ | |
681 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ | |
682 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ | |
683 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ | |
684 ALLOCATE_INITIAL_VALUE | |
685 | |
686 /* Other obsolete target macros, or macros that used to be in target | |
687 headers and were not used, and may be obsolete or may never have | |
688 been used. */ | |
689 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ | |
690 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ | |
691 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ | |
692 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ | |
693 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ | |
694 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ | |
695 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ | |
696 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ | |
697 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ | |
698 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ | |
699 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ | |
700 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ | |
701 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ | |
702 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ | |
703 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ | |
704 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ | |
705 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ | |
706 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ | |
707 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ | |
708 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ | |
709 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ | |
710 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ | |
711 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ | |
712 PROMOTED_MODE EXPAND_BUILTIN_VA_END \ | |
713 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ | |
714 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ | |
715 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ | |
716 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ | |
717 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ | |
718 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ | |
719 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ | |
720 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ | |
721 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ | |
722 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ | |
723 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ | |
724 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \ | |
725 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \ | |
726 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \ | |
727 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ | |
728 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ | |
729 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ | |
730 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ | |
731 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ | |
732 PREDICATE_CODES SPECIAL_MODE_PREDICATES HOST_PTR_PRINTF \ | |
733 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ | |
734 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ | |
735 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ | |
736 ASM_OUTPUT_SHARED_LOCAL UNALIGNED_WORD_ASM_OP \ | |
737 ASM_MAKE_LABEL_LINKONCE | |
738 | |
739 /* Hooks that are no longer used. */ | |
740 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ | |
741 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ | |
742 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ | |
743 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ | |
744 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ | |
745 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION | |
746 | |
747 /* Miscellaneous macros that are no longer used. */ | |
748 #pragma GCC poison USE_MAPPED_LOCATION | |
749 | |
750 /* Libiberty macros that are no longer used in GCC. */ | |
751 #undef ANSI_PROTOTYPES | |
752 #undef PTR_CONST | |
753 #undef LONG_DOUBLE | |
754 #undef VPARAMS | |
755 #undef VA_OPEN | |
756 #undef VA_FIXEDARG | |
757 #undef VA_CLOSE | |
758 #undef VA_START | |
759 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ | |
760 VA_FIXEDARG VA_CLOSE VA_START | |
761 #endif /* IN_GCC */ | |
762 | |
763 /* Note: not all uses of the `index' token (e.g. variable names and | |
764 structure members) have been eliminated. */ | |
765 #undef bcopy | |
766 #undef bzero | |
767 #undef bcmp | |
768 #undef rindex | |
769 #pragma GCC poison bcopy bzero bcmp rindex | |
770 | |
771 #endif /* GCC >= 3.0 */ | |
772 | |
773 /* This macro allows casting away const-ness to pass -Wcast-qual | |
774 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should | |
775 only be used in certain specific cases. One valid case is where | |
776 the C standard definitions or prototypes force you to. E.g. if you | |
777 need to free a const object, or if you pass a const string to | |
778 execv, et al. Another valid use would be in an allocation function | |
779 that creates const objects that need to be initialized. In some | |
780 cases we have non-const functions that return the argument | |
781 (e.g. next_nonnote_insn). Rather than create const shadow | |
782 functions, we can cast away const-ness in calling these interfaces | |
783 if we're careful to verify that the called function does indeed not | |
784 modify its argument and the return value is only used in a const | |
785 context. (This can be somewhat dangerous as these assumptions can | |
786 change after the fact). Beyond these uses, most other cases of | |
787 using this macro should be viewed with extreme caution. */ | |
788 | |
789 #if defined(__GNUC__) && GCC_VERSION > 4000 | |
790 /* GCC 4.0.x has a bug where it may ICE on this expression, | |
791 so does GCC 3.4.x (PR17436). */ | |
792 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) | |
793 #else | |
794 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) | |
795 #endif | |
796 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X)) | |
797 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X)) | |
798 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X)) | |
799 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X)) | |
800 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X)) | |
801 | |
802 /* Activate certain diagnostics as warnings (not errors via the | |
803 -Werror flag). */ | |
804 #if GCC_VERSION >= 4003 | |
805 /* If asserts are disabled, activate -Wuninitialized as a warning (not | |
806 an error/-Werror). */ | |
807 #ifndef ENABLE_ASSERT_CHECKING | |
808 #pragma GCC diagnostic warning "-Wuninitialized" | |
809 #endif | |
810 #endif | |
811 | |
812 #ifdef ENABLE_VALGRIND_CHECKING | |
813 # ifdef HAVE_VALGRIND_MEMCHECK_H | |
814 # include <valgrind/memcheck.h> | |
815 # elif defined HAVE_MEMCHECK_H | |
816 # include <memcheck.h> | |
817 # else | |
818 # include <valgrind.h> | |
819 # endif | |
820 /* Compatibility macros to let valgrind 3.1 work. */ | |
821 # ifndef VALGRIND_MAKE_MEM_NOACCESS | |
822 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS | |
823 # endif | |
824 # ifndef VALGRIND_MAKE_MEM_DEFINED | |
825 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE | |
826 # endif | |
827 # ifndef VALGRIND_MAKE_MEM_UNDEFINED | |
828 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE | |
829 # endif | |
830 #else | |
831 /* Avoid #ifdef:s when we can help it. */ | |
832 #define VALGRIND_DISCARD(x) | |
833 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z) | |
834 #define VALGRIND_FREELIKE_BLOCK(x,y) | |
835 #endif | |
836 | |
837 #endif /* ! GCC_SYSTEM_H */ |