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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. | |
d4d798a3 | 3 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
153a3027 | 4 | 2009, 2010 |
d9221e01 | 5 | Free Software Foundation, Inc. |
aca69483 | 6 | |
1322177d | 7 | This file is part of GCC. |
1b0c6de6 | 8 | |
1322177d LB |
9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 11 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 12 | version. |
1b0c6de6 | 13 | |
1322177d LB |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
1b0c6de6 JL |
18 | |
19 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
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 | ||
042630ad | 49 | /* Use the unlocked open routines from libiberty. */ |
d4d798a3 DR |
50 | #ifdef fopen /* fopen is a #define on VMS. */ |
51 | #undef fopen | |
52 | #endif | |
042630ad KG |
53 | #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE) |
54 | #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE) | |
55 | #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM) | |
56 | ||
54953b66 | 57 | /* The compiler is not a multi-threaded application and therefore we |
3b681e9d ZW |
58 | do not have to use the locking functions. In fact, using the locking |
59 | functions can cause the compiler to be significantly slower under | |
60 | I/O bound conditions (such as -g -O0 on very large source files). | |
9c30c0e7 | 61 | |
3b681e9d | 62 | HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio |
f31e826b KG |
63 | code is multi-thread safe by default. If it is set to 0, then do |
64 | not worry about using the _unlocked functions. | |
0d569849 | 65 | |
3b681e9d ZW |
66 | fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are |
67 | extensions and need to be prototyped by hand (since we do not | |
68 | define _GNU_SOURCE). */ | |
9c30c0e7 | 69 | |
3b681e9d ZW |
70 | #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED |
71 | ||
72 | # ifdef HAVE_PUTC_UNLOCKED | |
73 | # undef putc | |
74 | # define putc(C, Stream) putc_unlocked (C, Stream) | |
75 | # endif | |
0d667716 KG |
76 | # ifdef HAVE_PUTCHAR_UNLOCKED |
77 | # undef putchar | |
78 | # define putchar(C) putchar_unlocked (C) | |
79 | # endif | |
80 | # ifdef HAVE_GETC_UNLOCKED | |
81 | # undef getc | |
82 | # define getc(Stream) getc_unlocked (Stream) | |
83 | # endif | |
84 | # ifdef HAVE_GETCHAR_UNLOCKED | |
85 | # undef getchar | |
86 | # define getchar() getchar_unlocked () | |
87 | # endif | |
3b681e9d ZW |
88 | # ifdef HAVE_FPUTC_UNLOCKED |
89 | # undef fputc | |
90 | # define fputc(C, Stream) fputc_unlocked (C, Stream) | |
91 | # endif | |
92 | ||
0d667716 KG |
93 | # ifdef HAVE_CLEARERR_UNLOCKED |
94 | # undef clearerr | |
95 | # define clearerr(Stream) clearerr_unlocked (Stream) | |
96 | # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED | |
97 | extern void clearerr_unlocked (FILE *); | |
98 | # endif | |
99 | # endif | |
100 | # ifdef HAVE_FEOF_UNLOCKED | |
101 | # undef feof | |
102 | # define feof(Stream) feof_unlocked (Stream) | |
103 | # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED | |
104 | extern int feof_unlocked (FILE *); | |
105 | # endif | |
106 | # endif | |
107 | # ifdef HAVE_FILENO_UNLOCKED | |
108 | # undef fileno | |
109 | # define fileno(Stream) fileno_unlocked (Stream) | |
110 | # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED | |
111 | extern int fileno_unlocked (FILE *); | |
112 | # endif | |
113 | # endif | |
114 | # ifdef HAVE_FFLUSH_UNLOCKED | |
115 | # undef fflush | |
116 | # define fflush(Stream) fflush_unlocked (Stream) | |
117 | # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED | |
118 | extern int fflush_unlocked (FILE *); | |
119 | # endif | |
120 | # endif | |
121 | # ifdef HAVE_FGETC_UNLOCKED | |
122 | # undef fgetc | |
123 | # define fgetc(Stream) fgetc_unlocked (Stream) | |
124 | # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED | |
125 | extern int fgetc_unlocked (FILE *); | |
126 | # endif | |
127 | # endif | |
128 | # ifdef HAVE_FGETS_UNLOCKED | |
129 | # undef fgets | |
130 | # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream) | |
131 | # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED | |
132 | extern char *fgets_unlocked (char *, int, FILE *); | |
133 | # endif | |
134 | # endif | |
3b681e9d ZW |
135 | # ifdef HAVE_FPUTS_UNLOCKED |
136 | # undef fputs | |
137 | # define fputs(String, Stream) fputs_unlocked (String, Stream) | |
138 | # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED | |
2a0621b9 | 139 | extern int fputs_unlocked (const char *, FILE *); |
3b681e9d ZW |
140 | # endif |
141 | # endif | |
0d667716 KG |
142 | # ifdef HAVE_FERROR_UNLOCKED |
143 | # undef ferror | |
144 | # define ferror(Stream) ferror_unlocked (Stream) | |
145 | # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED | |
146 | extern int ferror_unlocked (FILE *); | |
147 | # endif | |
148 | # endif | |
149 | # ifdef HAVE_FREAD_UNLOCKED | |
150 | # undef fread | |
151 | # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream) | |
152 | # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED | |
153 | extern size_t fread_unlocked (void *, size_t, size_t, FILE *); | |
154 | # endif | |
155 | # endif | |
3b681e9d ZW |
156 | # ifdef HAVE_FWRITE_UNLOCKED |
157 | # undef fwrite | |
158 | # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream) | |
159 | # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED | |
0d667716 | 160 | extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *); |
3b681e9d | 161 | # endif |
9c30c0e7 | 162 | # endif |
3b681e9d ZW |
163 | # ifdef HAVE_FPRINTF_UNLOCKED |
164 | # undef fprintf | |
165 | /* We can't use a function-like macro here because we don't know if | |
166 | we have varargs macros. */ | |
167 | # define fprintf fprintf_unlocked | |
168 | # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED | |
2a0621b9 | 169 | extern int fprintf_unlocked (FILE *, const char *, ...); |
3b681e9d ZW |
170 | # endif |
171 | # endif | |
172 | ||
54953b66 UD |
173 | #endif |
174 | ||
0d569849 | 175 | /* ??? Glibc's fwrite/fread_unlocked macros cause |
1c99d804 RH |
176 | "warning: signed and unsigned type in conditional expression". */ |
177 | #undef fread_unlocked | |
178 | #undef fwrite_unlocked | |
179 | ||
f6bbde28 ZW |
180 | /* There are an extraordinary number of issues with <ctype.h>. |
181 | The last straw is that it varies with the locale. Use libiberty's | |
182 | replacement instead. */ | |
183 | #include <safe-ctype.h> | |
aca69483 | 184 | |
aca69483 | 185 | #include <sys/types.h> |
c5c76735 | 186 | |
aca69483 KG |
187 | #include <errno.h> |
188 | ||
6c889b67 | 189 | #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO |
aca69483 KG |
190 | extern int errno; |
191 | #endif | |
192 | ||
87608693 KG |
193 | /* Some of glibc's string inlines cause warnings. Plus we'd rather |
194 | rely on (and therefore test) GCC's string builtins. */ | |
195 | #define __NO_STRING_INLINES | |
196 | ||
ccc7d11a | 197 | #ifdef STRING_WITH_STRINGS |
aca69483 | 198 | # include <string.h> |
ccc7d11a | 199 | # include <strings.h> |
aca69483 | 200 | #else |
ccc7d11a KG |
201 | # ifdef HAVE_STRING_H |
202 | # include <string.h> | |
203 | # else | |
204 | # ifdef HAVE_STRINGS_H | |
205 | # include <strings.h> | |
206 | # endif | |
aca69483 KG |
207 | # endif |
208 | #endif | |
209 | ||
210 | #ifdef HAVE_STDLIB_H | |
211 | # include <stdlib.h> | |
212 | #endif | |
213 | ||
eaf4e618 ZW |
214 | /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and |
215 | FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively, | |
216 | or 0 and 1 if those macros are not defined. */ | |
217 | #ifndef SUCCESS_EXIT_CODE | |
218 | # ifdef EXIT_SUCCESS | |
219 | # define SUCCESS_EXIT_CODE EXIT_SUCCESS | |
220 | # else | |
221 | # define SUCCESS_EXIT_CODE 0 | |
222 | # endif | |
223 | #endif | |
224 | ||
225 | #ifndef FATAL_EXIT_CODE | |
226 | # ifdef EXIT_FAILURE | |
227 | # define FATAL_EXIT_CODE EXIT_FAILURE | |
228 | # else | |
229 | # define FATAL_EXIT_CODE 1 | |
230 | # endif | |
231 | #endif | |
232 | ||
ddaf3b86 VR |
233 | #define ICE_EXIT_CODE 4 |
234 | ||
aca69483 KG |
235 | #ifdef HAVE_UNISTD_H |
236 | # include <unistd.h> | |
237 | #endif | |
238 | ||
239 | #ifdef HAVE_SYS_PARAM_H | |
240 | # include <sys/param.h> | |
23d1aac4 | 241 | /* We use this identifier later and it appears in some vendor param.h's. */ |
655781b7 | 242 | # undef PREFETCH |
aca69483 KG |
243 | #endif |
244 | ||
245 | #if HAVE_LIMITS_H | |
246 | # include <limits.h> | |
247 | #endif | |
248 | ||
75e93faa ZW |
249 | /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */ |
250 | #include "hwint.h" | |
f80d6fd7 | 251 | |
5297e085 KG |
252 | /* A macro to determine whether a VALUE lies inclusively within a |
253 | certain range without evaluating the VALUE more than once. This | |
254 | macro won't warn if the VALUE is unsigned and the LOWER bound is | |
255 | zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER | |
256 | bound *is* evaluated twice, and LOWER must not be greater than | |
257 | UPPER. However the bounds themselves can be either positive or | |
258 | negative. */ | |
259 | #define IN_RANGE(VALUE, LOWER, UPPER) \ | |
b5edaa2c RS |
260 | ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \ |
261 | <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER)) | |
5297e085 | 262 | |
f12bc141 ZW |
263 | /* Infrastructure for defining missing _MAX and _MIN macros. Note that |
264 | macros defined with these cannot be used in #if. */ | |
265 | ||
266 | /* The extra casts work around common compiler bugs. */ | |
267 | #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | |
268 | /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. | |
269 | It is necessary at least when t == time_t. */ | |
270 | #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \ | |
271 | ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0)) | |
272 | #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t))) | |
273 | ||
274 | /* Use that infrastructure to provide a few constants. */ | |
275 | #ifndef UCHAR_MAX | |
276 | # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char) | |
277 | #endif | |
278 | ||
aca69483 KG |
279 | #ifdef TIME_WITH_SYS_TIME |
280 | # include <sys/time.h> | |
281 | # include <time.h> | |
282 | #else | |
283 | # if HAVE_SYS_TIME_H | |
e572c0c6 | 284 | # include <sys/time.h> |
aca69483 | 285 | # else |
e572c0c6 KG |
286 | # ifdef HAVE_TIME_H |
287 | # include <time.h> | |
288 | # endif | |
289 | # endif | |
aca69483 KG |
290 | #endif |
291 | ||
292 | #ifdef HAVE_FCNTL_H | |
293 | # include <fcntl.h> | |
294 | #else | |
e572c0c6 KG |
295 | # ifdef HAVE_SYS_FILE_H |
296 | # include <sys/file.h> | |
297 | # endif | |
aca69483 KG |
298 | #endif |
299 | ||
300 | #ifndef SEEK_SET | |
301 | # define SEEK_SET 0 | |
302 | # define SEEK_CUR 1 | |
303 | # define SEEK_END 2 | |
304 | #endif | |
305 | #ifndef F_OK | |
306 | # define F_OK 0 | |
307 | # define X_OK 1 | |
308 | # define W_OK 2 | |
309 | # define R_OK 4 | |
310 | #endif | |
e572c0c6 KG |
311 | #ifndef O_RDONLY |
312 | # define O_RDONLY 0 | |
313 | #endif | |
314 | #ifndef O_WRONLY | |
315 | # define O_WRONLY 1 | |
316 | #endif | |
aca69483 | 317 | |
36b8337d KG |
318 | /* Some systems define these in, e.g., param.h. We undefine these names |
319 | here to avoid the warnings. We prefer to use our definitions since we | |
320 | know they are correct. */ | |
321 | ||
322 | #undef MIN | |
323 | #undef MAX | |
324 | #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) | |
325 | #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) | |
326 | ||
13799af3 MM |
327 | /* Returns the least number N such that N * Y >= X. */ |
328 | #define CEIL(x,y) (((x) + (y) - 1) / (y)) | |
329 | ||
e9831ca0 KG |
330 | #ifdef HAVE_SYS_WAIT_H |
331 | #include <sys/wait.h> | |
332 | #endif | |
333 | ||
334 | #ifndef WIFSIGNALED | |
335 | #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) | |
336 | #endif | |
337 | #ifndef WTERMSIG | |
338 | #define WTERMSIG(S) ((S) & 0x7f) | |
339 | #endif | |
340 | #ifndef WIFEXITED | |
341 | #define WIFEXITED(S) (((S) & 0xff) == 0) | |
342 | #endif | |
343 | #ifndef WEXITSTATUS | |
344 | #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) | |
345 | #endif | |
8fa213ac PDM |
346 | #ifndef WSTOPSIG |
347 | #define WSTOPSIG WEXITSTATUS | |
348 | #endif | |
15dda4d3 KG |
349 | #ifndef WCOREDUMP |
350 | #define WCOREDUMP(S) ((S) & WCOREFLG) | |
351 | #endif | |
352 | #ifndef WCOREFLG | |
353 | #define WCOREFLG 0200 | |
354 | #endif | |
e9831ca0 | 355 | |
f31e826b KG |
356 | /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they |
357 | are defined to 0 then we must provide the relevant declaration | |
358 | here. These checks will be in the undefined state while configure | |
359 | is running so be careful to test "defined (HAVE_DECL_*)". */ | |
aca69483 | 360 | |
f31e826b | 361 | #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF |
2a0621b9 | 362 | extern double atof (const char *); |
8f81384f KG |
363 | #endif |
364 | ||
f31e826b | 365 | #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL |
2a0621b9 | 366 | extern long atol (const char *); |
8f81384f KG |
367 | #endif |
368 | ||
f31e826b | 369 | #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE |
2a0621b9 | 370 | extern void free (void *); |
aca69483 KG |
371 | #endif |
372 | ||
f31e826b | 373 | #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD |
2a0621b9 | 374 | extern char *getcwd (char *, size_t); |
6cd5dccd KG |
375 | #endif |
376 | ||
f31e826b | 377 | #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV |
2a0621b9 | 378 | extern char *getenv (const char *); |
79e11844 KG |
379 | #endif |
380 | ||
ebb13e7e | 381 | #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT |
2a0621b9 | 382 | extern int getopt (int, char * const *, const char *); |
ebb13e7e RK |
383 | #endif |
384 | ||
f6260033 EB |
385 | #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE |
386 | extern int getpagesize (void); | |
6a257778 AL |
387 | #endif |
388 | ||
f31e826b | 389 | #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD |
2a0621b9 | 390 | extern char *getwd (char *); |
6cd5dccd KG |
391 | #endif |
392 | ||
f31e826b | 393 | #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK |
2a0621b9 | 394 | extern void *sbrk (int); |
8f81384f KG |
395 | #endif |
396 | ||
f31e826b | 397 | #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR |
2a0621b9 | 398 | extern char *strstr (const char *, const char *); |
d3d5cc97 JL |
399 | #endif |
400 | ||
c5c76735 JL |
401 | #ifdef HAVE_MALLOC_H |
402 | #include <malloc.h> | |
403 | #endif | |
404 | ||
f31e826b | 405 | #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC |
2a0621b9 | 406 | extern void *malloc (size_t); |
c5c76735 JL |
407 | #endif |
408 | ||
f31e826b | 409 | #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC |
2a0621b9 | 410 | extern void *calloc (size_t, size_t); |
c5c76735 JL |
411 | #endif |
412 | ||
f31e826b | 413 | #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC |
2a0621b9 | 414 | extern void *realloc (void *, size_t); |
c5c76735 JL |
415 | #endif |
416 | ||
7c2a2dbf KT |
417 | #ifdef HAVE_STDINT_H |
418 | #include <stdint.h> | |
419 | #endif | |
420 | ||
421 | #ifdef HAVE_INTTYPES_H | |
422 | #include <inttypes.h> | |
423 | #endif | |
424 | ||
759af044 | 425 | /* If the system doesn't provide strsignal, we get it defined in |
2ba84f36 | 426 | libiberty but no declaration is supplied. */ |
0a18ddf9 AS |
427 | #if !defined (HAVE_STRSIGNAL) \ |
428 | || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL) | |
759af044 | 429 | # ifndef strsignal |
2a0621b9 | 430 | extern const char *strsignal (int); |
007e8d2a | 431 | # endif |
759af044 | 432 | #endif |
007e8d2a | 433 | |
d2cabf16 | 434 | #ifdef HAVE_GETRLIMIT |
f31e826b | 435 | # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT |
d2cabf16 | 436 | # ifndef getrlimit |
d4d4ae5f | 437 | struct rlimit; |
2a0621b9 | 438 | extern int getrlimit (int, struct rlimit *); |
d2cabf16 KG |
439 | # endif |
440 | # endif | |
441 | #endif | |
442 | ||
443 | #ifdef HAVE_SETRLIMIT | |
f31e826b | 444 | # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT |
d2cabf16 | 445 | # ifndef setrlimit |
d4d4ae5f | 446 | struct rlimit; |
2a0621b9 | 447 | extern int setrlimit (int, const struct rlimit *); |
d2cabf16 KG |
448 | # endif |
449 | # endif | |
450 | #endif | |
451 | ||
f31e826b | 452 | #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT |
2a0621b9 | 453 | extern void abort (void); |
2a611d21 | 454 | #endif |
d4ba0ead | 455 | |
236ce4b2 ZW |
456 | #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF |
457 | extern int snprintf (char *, size_t, const char *, ...); | |
458 | #endif | |
459 | ||
367e8319 EB |
460 | #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF |
461 | extern int vsnprintf(char *, size_t, const char *, va_list); | |
462 | #endif | |
463 | ||
61d0346d | 464 | /* 1 if we have C99 designated initializers. */ |
18922061 | 465 | #if !defined(HAVE_DESIGNATED_INITIALIZERS) |
61d0346d | 466 | #define HAVE_DESIGNATED_INITIALIZERS \ |
bf406687 ILT |
467 | (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \ |
468 | && !defined(__cplusplus)) | |
18922061 | 469 | #endif |
61d0346d | 470 | |
a05e22b8 RH |
471 | #if HAVE_SYS_STAT_H |
472 | # include <sys/stat.h> | |
473 | #endif | |
9855b854 MN |
474 | |
475 | /* Test if something is a normal file. */ | |
476 | #ifndef S_ISREG | |
477 | #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
478 | #endif | |
479 | ||
480 | /* Test if something is a directory. */ | |
481 | #ifndef S_ISDIR | |
482 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
483 | #endif | |
484 | ||
6458033d ZW |
485 | /* Test if something is a character special file. */ |
486 | #ifndef S_ISCHR | |
487 | #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) | |
488 | #endif | |
489 | ||
be3dad6f PDM |
490 | /* Test if something is a block special file. */ |
491 | #ifndef S_ISBLK | |
492 | #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) | |
493 | #endif | |
494 | ||
6458033d ZW |
495 | /* Test if something is a socket. */ |
496 | #ifndef S_ISSOCK | |
497 | # ifdef S_IFSOCK | |
498 | # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) | |
499 | # else | |
500 | # define S_ISSOCK(m) 0 | |
501 | # endif | |
502 | #endif | |
503 | ||
504 | /* Test if something is a FIFO. */ | |
505 | #ifndef S_ISFIFO | |
506 | # ifdef S_IFIFO | |
507 | # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
508 | # else | |
509 | # define S_ISFIFO(m) 0 | |
510 | # endif | |
511 | #endif | |
512 | ||
f3692274 ME |
513 | /* Define well known filenos if the system does not define them. */ |
514 | #ifndef STDIN_FILENO | |
515 | # define STDIN_FILENO 0 | |
516 | #endif | |
517 | #ifndef STDOUT_FILENO | |
518 | # define STDOUT_FILENO 1 | |
519 | #endif | |
924d8a7c | 520 | #ifndef STDERR_FILENO |
f3692274 ME |
521 | # define STDERR_FILENO 2 |
522 | #endif | |
523 | ||
2ba84f36 | 524 | /* Some systems have mkdir that takes a single argument. */ |
75923b2f MK |
525 | #ifdef MKDIR_TAKES_ONE_ARG |
526 | # define mkdir(a,b) mkdir(a) | |
527 | #endif | |
528 | ||
edb89024 DR |
529 | /* Provide a way to print an address via printf. */ |
530 | #ifndef HOST_PTR_PRINTF | |
531 | #define HOST_PTR_PRINTF "%p" | |
532 | #endif /* ! HOST_PTR_PRINTF */ | |
533 | ||
d5b6516d MK |
534 | /* By default, colon separates directories in a path. */ |
535 | #ifndef PATH_SEPARATOR | |
536 | #define PATH_SEPARATOR ':' | |
537 | #endif | |
538 | ||
3dce1408 ZW |
539 | /* Filename handling macros. */ |
540 | #include "filenames.h" | |
541 | ||
542 | /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */ | |
d5b6516d | 543 | #ifndef DIR_SEPARATOR |
3dce1408 ZW |
544 | # define DIR_SEPARATOR '/' |
545 | # ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
546 | # define DIR_SEPARATOR_2 '\\' | |
547 | # endif | |
c5c0b3d9 RK |
548 | #endif |
549 | ||
2ba84f36 | 550 | /* Get libiberty declarations. */ |
2778b98d KG |
551 | #include "libiberty.h" |
552 | ||
49009afd JL |
553 | /* Provide a default for the HOST_BIT_BUCKET. |
554 | This suffices for POSIX-like hosts. */ | |
555 | ||
556 | #ifndef HOST_BIT_BUCKET | |
557 | #define HOST_BIT_BUCKET "/dev/null" | |
558 | #endif | |
559 | ||
1c62e7b2 | 560 | /* Be conservative and only use enum bitfields with GCC. |
9612ab65 | 561 | FIXME: provide a complete autoconf test for buggy enum bitfields. */ |
c149cc37 | 562 | |
9612ab65 | 563 | #if (GCC_VERSION > 2000) |
a3bf324c | 564 | #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE |
c149cc37 RL |
565 | #else |
566 | #define ENUM_BITFIELD(TYPE) unsigned int | |
1c62e7b2 KG |
567 | #endif |
568 | ||
e0125cf3 | 569 | #ifndef offsetof |
cf403648 | 570 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) |
e0125cf3 | 571 | #endif |
c149cc37 | 572 | |
fbfc1192 ZW |
573 | /* Various error reporting routines want to use __FUNCTION__. */ |
574 | #if (GCC_VERSION < 2007) | |
791ef777 | 575 | #ifndef __FUNCTION__ |
fbfc1192 | 576 | #define __FUNCTION__ "?" |
791ef777 | 577 | #endif /* ! __FUNCTION__ */ |
fbfc1192 ZW |
578 | #endif |
579 | ||
2c3fcba6 ZW |
580 | /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that |
581 | the most likely value of A is B. This feature was added at some point | |
582 | between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */ | |
583 | #if (GCC_VERSION < 3000) | |
584 | #define __builtin_expect(a, b) (a) | |
585 | #endif | |
586 | ||
b3d1f5b4 NS |
587 | /* Redefine abort to report an internal error w/o coredump, and |
588 | reporting the location of the error in the source file. */ | |
589 | extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
590 | #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) | |
591 | ||
06c37c96 NS |
592 | /* Use gcc_assert(EXPR) to test invariants. */ |
593 | #if ENABLE_ASSERT_CHECKING | |
594 | #define gcc_assert(EXPR) \ | |
2c46a62f | 595 | ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) |
2df77822 DD |
596 | #elif (GCC_VERSION >= 4005) |
597 | #define gcc_assert(EXPR) \ | |
598 | ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0)) | |
06c37c96 | 599 | #else |
2c46a62f NS |
600 | /* Include EXPR, so that unused variable warnings do not occur. */ |
601 | #define gcc_assert(EXPR) ((void)(0 && (EXPR))) | |
06c37c96 NS |
602 | #endif |
603 | ||
06795261 JH |
604 | #ifdef ENABLE_CHECKING |
605 | #define gcc_checking_assert(EXPR) gcc_assert (EXPR) | |
606 | #else | |
607 | #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) | |
608 | #endif | |
609 | ||
06c37c96 NS |
610 | /* Use gcc_unreachable() to mark unreachable locations (like an |
611 | unreachable default case of a switch. Do not use gcc_assert(0). */ | |
2df77822 DD |
612 | #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING |
613 | #define gcc_unreachable() __builtin_unreachable() | |
614 | #else | |
06c37c96 | 615 | #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__)) |
2df77822 | 616 | #endif |
06c37c96 | 617 | |
2fac9c01 ZW |
618 | /* Provide a fake boolean type. We make no attempt to use the |
619 | C99 _Bool, as it may not be available in the bootstrap compiler, | |
f676971a | 620 | and even if it is, it is liable to be buggy. |
2fac9c01 ZW |
621 | This must be after all inclusion of system headers, as some of |
622 | them will mess us up. */ | |
ca79179c | 623 | |
d6edb99e ZW |
624 | #undef TRUE |
625 | #undef FALSE | |
626 | ||
ca79179c BI |
627 | #ifdef __cplusplus |
628 | /* Obsolete. */ | |
629 | # define TRUE true | |
630 | # define FALSE false | |
631 | #else /* !__cplusplus */ | |
632 | # undef bool | |
633 | # undef true | |
634 | # undef false | |
635 | ||
636 | # define bool unsigned char | |
637 | # define true 1 | |
638 | # define false 0 | |
639 | ||
640 | /* Obsolete. */ | |
641 | # define TRUE true | |
642 | # define FALSE false | |
643 | #endif /* !__cplusplus */ | |
d6edb99e | 644 | |
2fac9c01 ZW |
645 | /* Some compilers do not allow the use of unsigned char in bitfields. */ |
646 | #define BOOL_BITFIELD unsigned int | |
647 | ||
f4ce9d90 KG |
648 | /* As the last action in this file, we poison the identifiers that |
649 | shouldn't be used. Note, luckily gcc-3.0's token-based integrated | |
650 | preprocessor won't trip on poisoned identifiers that arrive from | |
651 | the expansion of macros. E.g. #define strrchr rindex, won't error | |
652 | if rindex is poisoned after this directive is issued and later on | |
653 | strrchr is called. | |
654 | ||
655 | Note: We define bypass macros for the few cases where we really | |
656 | want to use the libc memory allocation routines. Otherwise we | |
657 | insist you use the "x" versions from libiberty. */ | |
658 | ||
659 | #define really_call_malloc malloc | |
660 | #define really_call_calloc calloc | |
661 | #define really_call_realloc realloc | |
662 | ||
f92ed976 | 663 | #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC) |
4977bab6 | 664 | /* Flex and bison use malloc and realloc. Yuk. Note that this means |
32dd366d | 665 | really_call_* cannot be used in a .l or .y file. */ |
4977bab6 ZW |
666 | #define malloc xmalloc |
667 | #define realloc xrealloc | |
668 | #endif | |
669 | ||
f4ce9d90 KG |
670 | #if (GCC_VERSION >= 3000) |
671 | ||
77b84559 KG |
672 | /* Note autoconf checks for prototype declarations and includes |
673 | system.h while doing so. Only poison these tokens if actually | |
674 | compiling gcc, so that the autoconf declaration tests for malloc | |
675 | etc don't spuriously fail. */ | |
676 | #ifdef IN_GCC | |
8a0e5115 KG |
677 | #undef calloc |
678 | #undef strdup | |
e2500fed GK |
679 | #pragma GCC poison calloc strdup |
680 | ||
4977bab6 | 681 | #if !defined(FLEX_SCANNER) && !defined(YYBISON) |
e2500fed GK |
682 | #undef malloc |
683 | #undef realloc | |
684 | #pragma GCC poison malloc realloc | |
685 | #endif | |
41441dc7 NB |
686 | |
687 | /* Old target macros that have moved to the target hooks structure. */ | |
688 | #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \ | |
689 | FUNCTION_PROLOGUE FUNCTION_EPILOGUE \ | |
690 | FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \ | |
691 | DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \ | |
692 | VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \ | |
693 | SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \ | |
694 | MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \ | |
aa6ad1a6 | 695 | MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \ |
44a147ad | 696 | ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \ |
fb49053f | 697 | WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \ |
3961e8fe | 698 | ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \ |
dcefdf67 | 699 | ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \ |
75c20980 | 700 | ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \ |
30ee56e1 ZW |
701 | ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \ |
702 | INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \ | |
703 | DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \ | |
4ac8340c | 704 | MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \ |
510d1e80 | 705 | PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \ |
cde0f3fd | 706 | ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \ |
fefcb65c KH |
707 | STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \ |
708 | PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \ | |
221ee7c9 | 709 | SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \ |
84b8b0e0 | 710 | DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \ |
fe984136 | 711 | HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \ |
f676971a | 712 | MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \ |
78a52f11 | 713 | VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \ |
b48f503c | 714 | FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \ |
7b5cbb57 | 715 | ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \ |
82497700 | 716 | CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \ |
079e7538 NF |
717 | TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \ |
718 | RETURN_POPS_ARGS | |
aa6ad1a6 | 719 | |
e2500fed | 720 | /* Other obsolete target macros, or macros that used to be in target |
006946e4 JM |
721 | headers and were not used, and may be obsolete or may never have |
722 | been used. */ | |
c08f71aa | 723 | #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \ |
6a6c0154 | 724 | ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \ |
ed722f66 | 725 | DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \ |
16c484c7 | 726 | OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \ |
006946e4 | 727 | LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \ |
c99d986a | 728 | STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ |
f458d1d5 | 729 | SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ |
a11eba95 | 730 | TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ |
fc881338 RH |
731 | NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ |
732 | BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \ | |
733 | FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \ | |
68d5a1cd KC |
734 | MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \ |
735 | ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \ | |
80eaf415 | 736 | OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \ |
f691dc3b AJ |
737 | ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \ |
738 | DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \ | |
739 | DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \ | |
5145a02e | 740 | INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \ |
edf11bda | 741 | EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \ |
ba029213 | 742 | LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \ |
c6a515f4 | 743 | LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \ |
b816f339 | 744 | CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \ |
616f6d84 | 745 | FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \ |
16201823 | 746 | PROMOTED_MODE EXPAND_BUILTIN_VA_END \ |
9b2b3375 | 747 | LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \ |
1197924d | 748 | GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \ |
9e9126f3 | 749 | MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \ |
c1a41c2f | 750 | FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \ |
fdf89bf5 | 751 | TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \ |
67dfe110 | 752 | DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \ |
082a099c | 753 | SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \ |
bb2d400f | 754 | SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \ |
b89dc911 | 755 | DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \ |
ac746f1d ZW |
756 | COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \ |
757 | ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \ | |
758 | GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \ | |
93a27b7b | 759 | PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \ |
6e14af16 | 760 | DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \ |
6be85b25 | 761 | NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \ |
c5ff069d | 762 | CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \ |
57642751 | 763 | TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \ |
bacf5b96 | 764 | LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \ |
c2acaf06 | 765 | TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \ |
82b68940 | 766 | PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \ |
d6b5193b | 767 | EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \ |
00dcee0c | 768 | TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ |
f5e605e5 | 769 | SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ |
82b68940 | 770 | ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \ |
5a733826 | 771 | STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \ |
e4f7c483 | 772 | ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \ |
d5d8b111 | 773 | ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES |
aa6ad1a6 | 774 | |
e2500fed GK |
775 | /* Hooks that are no longer used. */ |
776 | #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ | |
9dcf6e73 JM |
777 | LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \ |
778 | LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \ | |
779 | LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \ | |
780 | LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \ | |
cde0f3fd PB |
781 | LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \ |
782 | TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN | |
e2500fed | 783 | |
2d593c86 TT |
784 | /* Miscellaneous macros that are no longer used. */ |
785 | #pragma GCC poison USE_MAPPED_LOCATION | |
786 | ||
b0c231bb KG |
787 | /* Libiberty macros that are no longer used in GCC. */ |
788 | #undef ANSI_PROTOTYPES | |
789 | #undef PTR_CONST | |
790 | #undef LONG_DOUBLE | |
791 | #undef VPARAMS | |
792 | #undef VA_OPEN | |
793 | #undef VA_FIXEDARG | |
794 | #undef VA_CLOSE | |
795 | #undef VA_START | |
627aa08a KG |
796 | #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \ |
797 | VA_FIXEDARG VA_CLOSE VA_START | |
77b84559 | 798 | #endif /* IN_GCC */ |
f4ce9d90 | 799 | |
7a3b4887 SB |
800 | /* Front ends should never have to include middle-end headers. Enforce |
801 | this by poisoning the header double-include protection defines. */ | |
802 | #ifdef IN_GCC_FRONTEND | |
4d451982 | 803 | #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H |
7a3b4887 SB |
804 | #endif |
805 | ||
8e944909 KG |
806 | /* Note: not all uses of the `index' token (e.g. variable names and |
807 | structure members) have been eliminated. */ | |
808 | #undef bcopy | |
8a0e5115 KG |
809 | #undef bzero |
810 | #undef bcmp | |
811 | #undef rindex | |
8e944909 | 812 | #pragma GCC poison bcopy bzero bcmp rindex |
f4ce9d90 KG |
813 | |
814 | #endif /* GCC >= 3.0 */ | |
815 | ||
68a57691 KG |
816 | /* This macro allows casting away const-ness to pass -Wcast-qual |
817 | warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should | |
818 | only be used in certain specific cases. One valid case is where | |
819 | the C standard definitions or prototypes force you to. E.g. if you | |
820 | need to free a const object, or if you pass a const string to | |
821 | execv, et al. Another valid use would be in an allocation function | |
75547801 KG |
822 | that creates const objects that need to be initialized. In some |
823 | cases we have non-const functions that return the argument | |
824 | (e.g. next_nonnote_insn). Rather than create const shadow | |
825 | functions, we can cast away const-ness in calling these interfaces | |
826 | if we're careful to verify that the called function does indeed not | |
827 | modify its argument and the return value is only used in a const | |
828 | context. (This can be somewhat dangerous as these assumptions can | |
829 | change after the fact). Beyond these uses, most other cases of | |
830 | using this macro should be viewed with extreme caution. */ | |
0b51511b | 831 | |
cea32bca TT |
832 | #ifdef __cplusplus |
833 | #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X)) | |
834 | #else | |
726a989a RB |
835 | #if defined(__GNUC__) && GCC_VERSION > 4000 |
836 | /* GCC 4.0.x has a bug where it may ICE on this expression, | |
837 | so does GCC 3.4.x (PR17436). */ | |
b1d5455a | 838 | #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) |
10d291f6 KT |
839 | #elif defined(__GNUC__) |
840 | static inline char * | |
841 | helper_const_non_const_cast (const char *p) | |
842 | { | |
843 | union { | |
844 | const char *const_c; | |
845 | char *c; | |
846 | } val; | |
847 | val.const_c = p; | |
848 | return val.c; | |
849 | } | |
850 | ||
851 | #define CONST_CAST2(TOTYPE,FROMTYPE,X) \ | |
852 | ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X))) | |
68a57691 | 853 | #else |
b1d5455a | 854 | #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X)) |
68a57691 | 855 | #endif |
cea32bca | 856 | #endif |
b1d5455a KG |
857 | #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X)) |
858 | #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X)) | |
859 | #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X)) | |
860 | #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X)) | |
726a989a | 861 | #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X)) |
68a57691 | 862 | |
572e5ae3 KG |
863 | /* Activate certain diagnostics as warnings (not errors via the |
864 | -Werror flag). */ | |
fe9a2598 | 865 | #if GCC_VERSION >= 4003 |
76ce039e AP |
866 | /* If asserts are disabled, activate -Wuninitialized as a warning (not |
867 | an error/-Werror). */ | |
ad7aacba | 868 | #ifndef ENABLE_ASSERT_CHECKING |
76ce039e AP |
869 | #pragma GCC diagnostic warning "-Wuninitialized" |
870 | #endif | |
fe9a2598 KG |
871 | #endif |
872 | ||
35dee980 HPN |
873 | #ifdef ENABLE_VALGRIND_CHECKING |
874 | # ifdef HAVE_VALGRIND_MEMCHECK_H | |
875 | # include <valgrind/memcheck.h> | |
876 | # elif defined HAVE_MEMCHECK_H | |
877 | # include <memcheck.h> | |
878 | # else | |
879 | # include <valgrind.h> | |
880 | # endif | |
881 | /* Compatibility macros to let valgrind 3.1 work. */ | |
882 | # ifndef VALGRIND_MAKE_MEM_NOACCESS | |
883 | # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS | |
884 | # endif | |
885 | # ifndef VALGRIND_MAKE_MEM_DEFINED | |
886 | # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE | |
887 | # endif | |
888 | # ifndef VALGRIND_MAKE_MEM_UNDEFINED | |
889 | # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE | |
890 | # endif | |
891 | #else | |
892 | /* Avoid #ifdef:s when we can help it. */ | |
893 | #define VALGRIND_DISCARD(x) | |
894 | #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z) | |
895 | #define VALGRIND_FREELIKE_BLOCK(x,y) | |
896 | #endif | |
897 | ||
24e47c76 JH |
898 | /* In LTO -fwhole-program build we still want to keep the debug functions available |
899 | for debugger. Mark them as used to prevent removal. */ | |
900 | #if (GCC_VERSION > 4000) | |
901 | #define DEBUG_FUNCTION __attribute__ ((__used__)) | |
902 | #define DEBUG_VARIABLE __attribute__ ((__used__)) | |
903 | #else | |
904 | #define DEBUG_FUNCTION | |
905 | #define DEBUG_VARIABLE | |
906 | #endif | |
907 | ||
88657302 | 908 | #endif /* ! GCC_SYSTEM_H */ |