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Commit | Line | Data |
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c5c76735 JL |
1 | /* Get common system includes and various definitions and declarations based |
2 | on autoconf macros. | |
d9221e01 KH |
3 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
4 | Free Software Foundation, Inc. | |
aca69483 | 5 | |
1322177d | 6 | This file is part of GCC. |
1b0c6de6 | 7 | |
1322177d LB |
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 2, or (at your option) any later | |
11 | version. | |
1b0c6de6 | 12 | |
1322177d LB |
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. | |
1b0c6de6 JL |
17 | |
18 | You should have received a copy of the GNU General Public License | |
1322177d LB |
19 | along with GCC; see the file COPYING. If not, write to the Free |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
aca69483 | 22 | |
c5c76735 | 23 | |
88657302 RH |
24 | #ifndef GCC_SYSTEM_H |
25 | #define GCC_SYSTEM_H | |
aca69483 | 26 | |
2a0621b9 | 27 | /* We must include stdarg.h before stdio.h. */ |
789f983a | 28 | #include <stdarg.h> |
789f983a | 29 | |
6f81b1ad RH |
30 | #ifndef va_copy |
31 | # ifdef __va_copy | |
32 | # define va_copy(d,s) __va_copy((d),(s)) | |
33 | # else | |
34 | # define va_copy(d,s) ((d) = (s)) | |
35 | # endif | |
36 | #endif | |
37 | ||
d6edb99e ZW |
38 | #ifdef HAVE_STDDEF_H |
39 | # include <stddef.h> | |
40 | #endif | |
41 | ||
aca69483 | 42 | #include <stdio.h> |
51db713f KG |
43 | |
44 | /* Define a generic NULL if one hasn't already been defined. */ | |
45 | #ifndef NULL | |
46 | #define NULL 0 | |
47 | #endif | |
48 | ||
54953b66 | 49 | /* The compiler is not a multi-threaded application and therefore we |
3b681e9d ZW |
50 | do not have to use the locking functions. In fact, using the locking |
51 | functions can cause the compiler to be significantly slower under | |
52 | I/O bound conditions (such as -g -O0 on very large source files). | |
9c30c0e7 | 53 | |
3b681e9d | 54 | HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio |
f31e826b KG |
55 | code is multi-thread safe by default. If it is set to 0, then do |
56 | not worry about using the _unlocked functions. | |
0d569849 | 57 | |
3b681e9d ZW |
58 | fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are |
59 | extensions and need to be prototyped by hand (since we do not | |
60 | define _GNU_SOURCE). */ | |
9c30c0e7 | 61 | |
3b681e9d ZW |
62 | #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED |
63 | ||
64 | # ifdef HAVE_PUTC_UNLOCKED | |
65 | # undef putc | |
66 | # define putc(C, Stream) putc_unlocked (C, Stream) | |
67 | # endif | |
68 | # ifdef HAVE_FPUTC_UNLOCKED | |
69 | # undef fputc | |
70 | # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
71 | # endif | |
72 | ||
73 | # ifdef HAVE_FPUTS_UNLOCKED | |
74 | # undef fputs | |
75 | # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
76 | # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
2a0621b9 | 77 | extern int fputs_unlocked (const char *, FILE *); |
3b681e9d ZW |
78 | # endif |
79 | # endif | |
80 | # ifdef HAVE_FWRITE_UNLOCKED | |
81 | # undef fwrite | |
82 | # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
83 | # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
2a0621b9 | 84 | extern int fwrite_unlocked (const void *, size_t, size_t, FILE *); |
3b681e9d | 85 | # endif |
9c30c0e7 | 86 | # endif |
3b681e9d ZW |
87 | # ifdef HAVE_FPRINTF_UNLOCKED |
88 | # undef fprintf | |
89 | /* We can't use a function-like macro here because we don't know if | |
90 | we have varargs macros. */ | |
91 | # define fprintf fprintf_unlocked | |
92 | # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
2a0621b9 | 93 | extern int fprintf_unlocked (FILE *, const char *, ...); |
3b681e9d ZW |
94 | # endif |
95 | # endif | |
96 | ||
54953b66 UD |
97 | #endif |
98 | ||
0d569849 | 99 | /* ??? Glibc's fwrite/fread_unlocked macros cause |
1c99d804 RH |
100 | "warning: signed and unsigned type in conditional expression". */ |
101 | #undef fread_unlocked | |
102 | #undef fwrite_unlocked | |
103 | ||
f6bbde28 ZW |
104 | /* There are an extraordinary number of issues with <ctype.h>. |
105 | The last straw is that it varies with the locale. Use libiberty's | |
106 | replacement instead. */ | |
107 | #include <safe-ctype.h> | |
aca69483 | 108 | |
aca69483 | 109 | #include <sys/types.h> |
c5c76735 | 110 | |
aca69483 KG |
111 | #include <errno.h> |
112 | ||
6c889b67 | 113 | #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO |
aca69483 KG |
114 | extern int errno; |
115 | #endif | |
116 | ||
87608693 KG |
117 | /* Some of glibc's string inlines cause warnings. Plus we'd rather |
118 | rely on (and therefore test) GCC's string builtins. */ | |
119 | #define __NO_STRING_INLINES | |
120 | ||
ccc7d11a | 121 | #ifdef STRING_WITH_STRINGS |
aca69483 | 122 | # include <string.h> |
ccc7d11a | 123 | # include <strings.h> |
aca69483 | 124 | #else |
ccc7d11a KG |
125 | # ifdef HAVE_STRING_H |
126 | # include <string.h> | |
127 | # else | |
128 | # ifdef HAVE_STRINGS_H | |
129 | # include <strings.h> | |
130 | # endif | |
aca69483 KG |
131 | # endif |
132 | #endif | |
133 | ||
134 | #ifdef HAVE_STDLIB_H | |
135 | # include <stdlib.h> | |
136 | #endif | |
137 | ||
eaf4e618 ZW |
138 | /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and |
139 | FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, | |
140 | or 0 and 1 if those macros are not defined. */ | |
141 | #ifndef SUCCESS_EXIT_CODE | |
142 | # ifdef EXIT_SUCCESS | |
143 | # define SUCCESS_EXIT_CODE EXIT_SUCCESS | |
144 | # else | |
145 | # define SUCCESS_EXIT_CODE 0 | |
146 | # endif | |
147 | #endif | |
148 | ||
149 | #ifndef FATAL_EXIT_CODE | |
150 | # ifdef EXIT_FAILURE | |
151 | # define FATAL_EXIT_CODE EXIT_FAILURE | |
152 | # else | |
153 | # define FATAL_EXIT_CODE 1 | |
154 | # endif | |
155 | #endif | |
156 | ||
aca69483 KG |
157 | #ifdef HAVE_UNISTD_H |
158 | # include <unistd.h> | |
159 | #endif | |
160 | ||
161 | #ifdef HAVE_SYS_PARAM_H | |
162 | # include <sys/param.h> | |
23d1aac4 | 163 | /* We use this identifier later and it appears in some vendor param.h's. */ |
655781b7 | 164 | # undef PREFETCH |
aca69483 KG |
165 | #endif |
166 | ||
167 | #if HAVE_LIMITS_H | |
168 | # include <limits.h> | |
169 | #endif | |
170 | ||
75e93faa ZW |
171 | /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ |
172 | #include "hwint.h" | |
f80d6fd7 | 173 | |
5297e085 KG |
174 | /* A macro to determine whether a VALUE lies inclusively within a |
175 | certain range without evaluating the VALUE more than once. This | |
176 | macro won't warn if the VALUE is unsigned and the LOWER bound is | |
177 | zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER | |
178 | bound *is* evaluated twice, and LOWER must not be greater than | |
179 | UPPER. However the bounds themselves can be either positive or | |
180 | negative. */ | |
181 | #define IN_RANGE(VALUE, LOWER, UPPER) \ | |
cf403648 | 182 | ((unsigned HOST_WIDE_INT) ((VALUE) - (LOWER)) <= ((UPPER) - (LOWER))) |
5297e085 | 183 | |
f12bc141 ZW |
184 | /* Infrastructure for defining missing _MAX and _MIN macros. Note that |
185 | macros defined with these cannot be used in #if. */ | |
186 | ||
187 | /* The extra casts work around common compiler bugs. */ | |
188 | #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
189 | /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
190 | It is necessary at least when t == time_t. */ | |
191 | #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
192 | ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) | |
193 | #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) | |
194 | ||
195 | /* Use that infrastructure to provide a few constants. */ | |
196 | #ifndef UCHAR_MAX | |
197 | # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
198 | #endif | |
199 | ||
aca69483 KG |
200 | #ifdef TIME_WITH_SYS_TIME |
201 | # include <sys/time.h> | |
202 | # include <time.h> | |
203 | #else | |
204 | # if HAVE_SYS_TIME_H | |
e572c0c6 | 205 | # include <sys/time.h> |
aca69483 | 206 | # else |
e572c0c6 KG |
207 | # ifdef HAVE_TIME_H |
208 | # include <time.h> | |
209 | # endif | |
210 | # endif | |
aca69483 KG |
211 | #endif |
212 | ||
213 | #ifdef HAVE_FCNTL_H | |
214 | # include <fcntl.h> | |
215 | #else | |
e572c0c6 KG |
216 | # ifdef HAVE_SYS_FILE_H |
217 | # include <sys/file.h> | |
218 | # endif | |
aca69483 KG |
219 | #endif |
220 | ||
221 | #ifndef SEEK_SET | |
222 | # define SEEK_SET 0 | |
223 | # define SEEK_CUR 1 | |
224 | # define SEEK_END 2 | |
225 | #endif | |
226 | #ifndef F_OK | |
227 | # define F_OK 0 | |
228 | # define X_OK 1 | |
229 | # define W_OK 2 | |
230 | # define R_OK 4 | |
231 | #endif | |
e572c0c6 KG |
232 | #ifndef O_RDONLY |
233 | # define O_RDONLY 0 | |
234 | #endif | |
235 | #ifndef O_WRONLY | |
236 | # define O_WRONLY 1 | |
237 | #endif | |
aca69483 | 238 | |
36b8337d KG |
239 | /* Some systems define these in, e.g., param.h. We undefine these names |
240 | here to avoid the warnings. We prefer to use our definitions since we | |
241 | know they are correct. */ | |
242 | ||
243 | #undef MIN | |
244 | #undef MAX | |
245 | #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
246 | #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
247 | ||
13799af3 MM |
248 | /* Returns the least number N such that N * Y >= X. */ |
249 | #define CEIL(x,y) (((x) + (y) - 1) / (y)) | |
250 | ||
e9831ca0 KG |
251 | #ifdef HAVE_SYS_WAIT_H |
252 | #include <sys/wait.h> | |
253 | #endif | |
254 | ||
255 | #ifndef WIFSIGNALED | |
256 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
257 | #endif | |
258 | #ifndef WTERMSIG | |
259 | #define WTERMSIG(S) ((S) & 0x7f) | |
260 | #endif | |
261 | #ifndef WIFEXITED | |
262 | #define WIFEXITED(S) (((S) & 0xff) == 0) | |
263 | #endif | |
264 | #ifndef WEXITSTATUS | |
265 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
266 | #endif | |
8fa213ac PDM |
267 | #ifndef WSTOPSIG |
268 | #define WSTOPSIG WEXITSTATUS | |
269 | #endif | |
15dda4d3 KG |
270 | #ifndef WCOREDUMP |
271 | #define WCOREDUMP(S) ((S) & WCOREFLG) | |
272 | #endif | |
273 | #ifndef WCOREFLG | |
274 | #define WCOREFLG 0200 | |
275 | #endif | |
e9831ca0 | 276 | |
f31e826b KG |
277 | /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they |
278 | are defined to 0 then we must provide the relevant declaration | |
279 | here. These checks will be in the undefined state while configure | |
280 | is running so be careful to test "defined (HAVE_DECL_*)". */ | |
aca69483 | 281 | |
f31e826b | 282 | #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF |
2a0621b9 | 283 | extern double atof (const char *); |
8f81384f KG |
284 | #endif |
285 | ||
f31e826b | 286 | #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL |
2a0621b9 | 287 | extern long atol (const char *); |
8f81384f KG |
288 | #endif |
289 | ||
f31e826b | 290 | #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE |
2a0621b9 | 291 | extern void free (void *); |
aca69483 KG |
292 | #endif |
293 | ||
f31e826b | 294 | #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD |
2a0621b9 | 295 | extern char *getcwd (char *, size_t); |
6cd5dccd KG |
296 | #endif |
297 | ||
f31e826b | 298 | #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV |
2a0621b9 | 299 | extern char *getenv (const char *); |
79e11844 KG |
300 | #endif |
301 | ||
ebb13e7e | 302 | #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT |
2a0621b9 | 303 | extern int getopt (int, char * const *, const char *); |
ebb13e7e RK |
304 | #endif |
305 | ||
f31e826b | 306 | #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD |
2a0621b9 | 307 | extern char *getwd (char *); |
6cd5dccd KG |
308 | #endif |
309 | ||
f31e826b | 310 | #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK |
2a0621b9 | 311 | extern void *sbrk (int); |
8f81384f KG |
312 | #endif |
313 | ||
f31e826b | 314 | #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR |
2a0621b9 | 315 | extern char *strstr (const char *, const char *); |
d3d5cc97 JL |
316 | #endif |
317 | ||
c5c76735 JL |
318 | #ifdef HAVE_MALLOC_H |
319 | #include <malloc.h> | |
320 | #endif | |
321 | ||
f31e826b | 322 | #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC |
2a0621b9 | 323 | extern void *malloc (size_t); |
c5c76735 JL |
324 | #endif |
325 | ||
f31e826b | 326 | #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC |
2a0621b9 | 327 | extern void *calloc (size_t, size_t); |
c5c76735 JL |
328 | #endif |
329 | ||
f31e826b | 330 | #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC |
2a0621b9 | 331 | extern void *realloc (void *, size_t); |
c5c76735 JL |
332 | #endif |
333 | ||
759af044 | 334 | /* If the system doesn't provide strsignal, we get it defined in |
2ba84f36 | 335 | libiberty but no declaration is supplied. */ |
0a18ddf9 AS |
336 | #if !defined (HAVE_STRSIGNAL) \ |
337 | || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) | |
759af044 | 338 | # ifndef strsignal |
2a0621b9 | 339 | extern const char *strsignal (int); |
007e8d2a | 340 | # endif |
759af044 | 341 | #endif |
007e8d2a | 342 | |
d2cabf16 | 343 | #ifdef HAVE_GETRLIMIT |
f31e826b | 344 | # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT |
d2cabf16 | 345 | # ifndef getrlimit |
d4d4ae5f | 346 | struct rlimit; |
2a0621b9 | 347 | extern int getrlimit (int, struct rlimit *); |
d2cabf16 KG |
348 | # endif |
349 | # endif | |
350 | #endif | |
351 | ||
352 | #ifdef HAVE_SETRLIMIT | |
f31e826b | 353 | # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT |
d2cabf16 | 354 | # ifndef setrlimit |
d4d4ae5f | 355 | struct rlimit; |
2a0621b9 | 356 | extern int setrlimit (int, const struct rlimit *); |
d2cabf16 KG |
357 | # endif |
358 | # endif | |
359 | #endif | |
360 | ||
f31e826b | 361 | #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT |
2a0621b9 | 362 | extern void abort (void); |
2a611d21 | 363 | #endif |
d4ba0ead | 364 | |
236ce4b2 ZW |
365 | #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF |
366 | extern int snprintf (char *, size_t, const char *, ...); | |
367 | #endif | |
368 | ||
61d0346d | 369 | /* 1 if we have C99 designated initializers. */ |
18922061 | 370 | #if !defined(HAVE_DESIGNATED_INITIALIZERS) |
61d0346d NB |
371 | #define HAVE_DESIGNATED_INITIALIZERS \ |
372 | ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) | |
18922061 | 373 | #endif |
61d0346d | 374 | |
a05e22b8 RH |
375 | #if HAVE_SYS_STAT_H |
376 | # include <sys/stat.h> | |
377 | #endif | |
9855b854 MN |
378 | |
379 | /* Test if something is a normal file. */ | |
380 | #ifndef S_ISREG | |
381 | #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
382 | #endif | |
383 | ||
384 | /* Test if something is a directory. */ | |
385 | #ifndef S_ISDIR | |
386 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
387 | #endif | |
388 | ||
6458033d ZW |
389 | /* Test if something is a character special file. */ |
390 | #ifndef S_ISCHR | |
391 | #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
392 | #endif | |
393 | ||
be3dad6f PDM |
394 | /* Test if something is a block special file. */ |
395 | #ifndef S_ISBLK | |
396 | #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
397 | #endif | |
398 | ||
6458033d ZW |
399 | /* Test if something is a socket. */ |
400 | #ifndef S_ISSOCK | |
401 | # ifdef S_IFSOCK | |
402 | # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
403 | # else | |
404 | # define S_ISSOCK(m) 0 | |
405 | # endif | |
406 | #endif | |
407 | ||
408 | /* Test if something is a FIFO. */ | |
409 | #ifndef S_ISFIFO | |
410 | # ifdef S_IFIFO | |
411 | # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
412 | # else | |
413 | # define S_ISFIFO(m) 0 | |
414 | # endif | |
415 | #endif | |
416 | ||
f3692274 ME |
417 | /* Define well known filenos if the system does not define them. */ |
418 | #ifndef STDIN_FILENO | |
419 | # define STDIN_FILENO 0 | |
420 | #endif | |
421 | #ifndef STDOUT_FILENO | |
422 | # define STDOUT_FILENO 1 | |
423 | #endif | |
924d8a7c | 424 | #ifndef STDERR_FILENO |
f3692274 ME |
425 | # define STDERR_FILENO 2 |
426 | #endif | |
427 | ||
2ba84f36 | 428 | /* Some systems have mkdir that takes a single argument. */ |
75923b2f MK |
429 | #ifdef MKDIR_TAKES_ONE_ARG |
430 | # define mkdir(a,b) mkdir(a) | |
431 | #endif | |
432 | ||
1eb14644 KG |
433 | /* Provide a way to print an address via printf. */ |
434 | #ifndef HOST_PTR_PRINTF | |
435 | # ifdef HAVE_PRINTF_PTR | |
436 | # define HOST_PTR_PRINTF "%p" | |
75b6f3fd KG |
437 | # elif SIZEOF_INT == SIZEOF_VOID_P |
438 | # define HOST_PTR_PRINTF "%x" | |
439 | # elif SIZEOF_LONG == SIZEOF_VOID_P | |
440 | # define HOST_PTR_PRINTF "%lx" | |
1eb14644 | 441 | # else |
75b6f3fd | 442 | # define HOST_PTR_PRINTF "%llx" |
1eb14644 KG |
443 | # endif |
444 | #endif /* ! HOST_PTR_PRINTF */ | |
445 | ||
d5b6516d MK |
446 | /* By default, colon separates directories in a path. */ |
447 | #ifndef PATH_SEPARATOR | |
448 | #define PATH_SEPARATOR ':' | |
449 | #endif | |
450 | ||
3dce1408 ZW |
451 | /* Filename handling macros. */ |
452 | #include "filenames.h" | |
453 | ||
454 | /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ | |
d5b6516d | 455 | #ifndef DIR_SEPARATOR |
3dce1408 ZW |
456 | # define DIR_SEPARATOR '/' |
457 | # ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
458 | # define DIR_SEPARATOR_2 '\\' | |
459 | # endif | |
c5c0b3d9 RK |
460 | #endif |
461 | ||
2ba84f36 | 462 | /* Get libiberty declarations. */ |
2778b98d KG |
463 | #include "libiberty.h" |
464 | ||
49009afd JL |
465 | /* Provide a default for the HOST_BIT_BUCKET. |
466 | This suffices for POSIX-like hosts. */ | |
467 | ||
468 | #ifndef HOST_BIT_BUCKET | |
469 | #define HOST_BIT_BUCKET "/dev/null" | |
470 | #endif | |
471 | ||
1c62e7b2 | 472 | /* Be conservative and only use enum bitfields with GCC. |
9612ab65 | 473 | FIXME: provide a complete autoconf test for buggy enum bitfields. */ |
c149cc37 | 474 | |
9612ab65 | 475 | #if (GCC_VERSION > 2000) |
a3bf324c | 476 | #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE |
c149cc37 RL |
477 | #else |
478 | #define ENUM_BITFIELD(TYPE) unsigned int | |
1c62e7b2 KG |
479 | #endif |
480 | ||
e0125cf3 | 481 | #ifndef offsetof |
cf403648 | 482 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) |
e0125cf3 | 483 | #endif |
c149cc37 | 484 | |
fbfc1192 ZW |
485 | /* Various error reporting routines want to use __FUNCTION__. */ |
486 | #if (GCC_VERSION < 2007) | |
791ef777 | 487 | #ifndef __FUNCTION__ |
fbfc1192 | 488 | #define __FUNCTION__ "?" |
791ef777 | 489 | #endif /* ! __FUNCTION__ */ |
fbfc1192 ZW |
490 | #endif |
491 | ||
2c3fcba6 ZW |
492 | /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that |
493 | the most likely value of A is B. This feature was added at some point | |
494 | between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
495 | #if (GCC_VERSION < 3000) | |
496 | #define __builtin_expect(a, b) (a) | |
497 | #endif | |
498 | ||
2fac9c01 ZW |
499 | /* Provide a fake boolean type. We make no attempt to use the |
500 | C99 _Bool, as it may not be available in the bootstrap compiler, | |
501 | and even if it is, it is liable to be buggy. | |
502 | This must be after all inclusion of system headers, as some of | |
503 | them will mess us up. */ | |
d6edb99e ZW |
504 | #undef bool |
505 | #undef true | |
506 | #undef false | |
507 | #undef TRUE | |
508 | #undef FALSE | |
509 | ||
2fac9c01 ZW |
510 | #define bool unsigned char |
511 | #define true 1 | |
512 | #define false 0 | |
d6edb99e ZW |
513 | |
514 | #define TRUE true | |
515 | #define FALSE false | |
516 | ||
2fac9c01 ZW |
517 | /* Some compilers do not allow the use of unsigned char in bitfields. */ |
518 | #define BOOL_BITFIELD unsigned int | |
519 | ||
f4ce9d90 KG |
520 | /* As the last action in this file, we poison the identifiers that |
521 | shouldn't be used. Note, luckily gcc-3.0's token-based integrated | |
522 | preprocessor won't trip on poisoned identifiers that arrive from | |
523 | the expansion of macros. E.g. #define strrchr rindex, won't error | |
524 | if rindex is poisoned after this directive is issued and later on | |
525 | strrchr is called. | |
526 | ||
527 | Note: We define bypass macros for the few cases where we really | |
528 | want to use the libc memory allocation routines. Otherwise we | |
529 | insist you use the "x" versions from libiberty. */ | |
530 | ||
531 | #define really_call_malloc malloc | |
532 | #define really_call_calloc calloc | |
533 | #define really_call_realloc realloc | |
534 | ||
f92ed976 | 535 | #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) |
4977bab6 | 536 | /* Flex and bison use malloc and realloc. Yuk. Note that this means |
32dd366d | 537 | really_call_* cannot be used in a .l or .y file. */ |
4977bab6 ZW |
538 | #define malloc xmalloc |
539 | #define realloc xrealloc | |
540 | #endif | |
541 | ||
f4ce9d90 KG |
542 | #if (GCC_VERSION >= 3000) |
543 | ||
77b84559 KG |
544 | /* Note autoconf checks for prototype declarations and includes |
545 | system.h while doing so. Only poison these tokens if actually | |
546 | compiling gcc, so that the autoconf declaration tests for malloc | |
547 | etc don't spuriously fail. */ | |
548 | #ifdef IN_GCC | |
8a0e5115 KG |
549 | #undef calloc |
550 | #undef strdup | |
e2500fed GK |
551 | #pragma GCC poison calloc strdup |
552 | ||
4977bab6 | 553 | #if !defined(FLEX_SCANNER) && !defined(YYBISON) |
e2500fed GK |
554 | #undef malloc |
555 | #undef realloc | |
556 | #pragma GCC poison malloc realloc | |
557 | #endif | |
41441dc7 NB |
558 | |
559 | /* Old target macros that have moved to the target hooks structure. */ | |
560 | #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ | |
561 | FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ | |
562 | FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ | |
563 | DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ | |
564 | VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ | |
565 | SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ | |
566 | MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ | |
aa6ad1a6 | 567 | MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ |
44a147ad | 568 | ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ |
fb49053f | 569 | WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ |
3961e8fe | 570 | ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ |
dcefdf67 | 571 | ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ |
75c20980 | 572 | ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ |
30ee56e1 ZW |
573 | ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ |
574 | INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ | |
575 | DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ | |
4ac8340c | 576 | MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ |
510d1e80 | 577 | PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ |
b602b7b6 | 578 | ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS \ |
fefcb65c KH |
579 | STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ |
580 | PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ | |
221ee7c9 | 581 | SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ |
84b8b0e0 ZW |
582 | DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ |
583 | HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX | |
aa6ad1a6 | 584 | |
e2500fed | 585 | /* Other obsolete target macros, or macros that used to be in target |
006946e4 JM |
586 | headers and were not used, and may be obsolete or may never have |
587 | been used. */ | |
c08f71aa | 588 | #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ |
6a6c0154 | 589 | ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ |
ed722f66 | 590 | DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ |
16c484c7 | 591 | OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ |
006946e4 | 592 | LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ |
c99d986a | 593 | STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ |
f458d1d5 | 594 | SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ |
a11eba95 | 595 | TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ |
fc881338 RH |
596 | NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ |
597 | BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ | |
598 | FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ | |
c0667597 | 599 | MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP \ |
e5bcbd89 | 600 | ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL \ |
80eaf415 | 601 | OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ |
f691dc3b AJ |
602 | ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ |
603 | DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ | |
604 | DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ | |
5145a02e | 605 | INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ |
edf11bda | 606 | EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ |
ba029213 | 607 | LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ |
c6a515f4 | 608 | LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ |
b816f339 | 609 | CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ |
616f6d84 | 610 | FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ |
16201823 | 611 | PROMOTED_MODE EXPAND_BUILTIN_VA_END \ |
9b2b3375 | 612 | LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ |
1197924d | 613 | GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ |
6c5caf00 | 614 | MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP \ |
6de9cd9a | 615 | INTEGRATE_THRESHOLD \ |
c1a41c2f | 616 | FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ |
fdf89bf5 | 617 | TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ |
67dfe110 | 618 | DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ |
082a099c | 619 | SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ |
bb2d400f | 620 | SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ |
8f99553f | 621 | DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS |
aa6ad1a6 | 622 | |
e2500fed GK |
623 | /* Hooks that are no longer used. */ |
624 | #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ | |
03aa99d4 | 625 | LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES |
e2500fed | 626 | |
b0c231bb KG |
627 | /* Libiberty macros that are no longer used in GCC. */ |
628 | #undef ANSI_PROTOTYPES | |
629 | #undef PTR_CONST | |
630 | #undef LONG_DOUBLE | |
631 | #undef VPARAMS | |
632 | #undef VA_OPEN | |
633 | #undef VA_FIXEDARG | |
634 | #undef VA_CLOSE | |
635 | #undef VA_START | |
636 | #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ | |
637 | VA_FIXEDARG VA_CLOSE VA_START | |
77b84559 | 638 | #endif /* IN_GCC */ |
f4ce9d90 | 639 | |
8e944909 KG |
640 | /* Note: not all uses of the `index' token (e.g. variable names and |
641 | structure members) have been eliminated. */ | |
642 | #undef bcopy | |
8a0e5115 KG |
643 | #undef bzero |
644 | #undef bcmp | |
645 | #undef rindex | |
8e944909 | 646 | #pragma GCC poison bcopy bzero bcmp rindex |
f4ce9d90 KG |
647 | |
648 | #endif /* GCC >= 3.0 */ | |
649 | ||
88657302 | 650 | #endif /* ! GCC_SYSTEM_H */ |