Line data Source code
1 : /* Get common system includes and various definitions and declarations based
2 : on autoconf macros.
3 : Copyright (C) 1998-2023 Free Software Foundation, Inc.
4 :
5 : This file is part of GCC.
6 :
7 : GCC is free software; you can redistribute it and/or modify it under
8 : the terms of the GNU General Public License as published by the Free
9 : Software Foundation; either version 3, or (at your option) any later
10 : version.
11 :
12 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 : for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with GCC; see the file COPYING3. If not see
19 : <http://www.gnu.org/licenses/>. */
20 :
21 :
22 : #ifndef GCC_SYSTEM_H
23 : #define GCC_SYSTEM_H
24 :
25 : /* Define this so that inttypes.h defines the PRI?64 macros even
26 : when compiling with a C++ compiler. Define it here so in the
27 : event inttypes.h gets pulled in by another header it is already
28 : defined. */
29 : #define __STDC_FORMAT_MACROS
30 :
31 : /* We must include stdarg.h before stdio.h. */
32 : #include <stdarg.h>
33 :
34 : #ifndef va_copy
35 : # ifdef __va_copy
36 : # define va_copy(d,s) __va_copy (d, s)
37 : # else
38 : # define va_copy(d,s) ((d) = (s))
39 : # endif
40 : #endif
41 :
42 : #ifdef HAVE_STDDEF_H
43 : # include <stddef.h>
44 : #endif
45 :
46 : #include <stdio.h>
47 :
48 : /* Define a generic NULL if one hasn't already been defined. */
49 : #ifndef NULL
50 : #define NULL 0
51 : #endif
52 :
53 : /* Use the unlocked open routines from libiberty. */
54 :
55 : /* Some of these are #define on some systems, e.g. on AIX to redirect
56 : the names to 64bit capable functions for LARGE_FILES support. These
57 : redefs are pointless here so we can override them. */
58 :
59 : #undef fopen
60 : #undef freopen
61 :
62 : #define fopen(PATH, MODE) fopen_unlocked (PATH, MODE)
63 : #define fdopen(FILDES, MODE) fdopen_unlocked (FILDES, MODE)
64 : #define freopen(PATH, MODE, STREAM) freopen_unlocked (PATH, MODE, STREAM)
65 :
66 : /* The compiler is not a multi-threaded application and therefore we
67 : do not have to use the locking functions. In fact, using the locking
68 : functions can cause the compiler to be significantly slower under
69 : I/O bound conditions (such as -g -O0 on very large source files).
70 :
71 : HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
72 : code is multi-thread safe by default. If it is set to 0, then do
73 : not worry about using the _unlocked functions.
74 :
75 : fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
76 : extensions and need to be prototyped by hand (since we do not
77 : define _GNU_SOURCE). */
78 :
79 : #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
80 :
81 : # ifdef HAVE_PUTC_UNLOCKED
82 : # undef putc
83 : # define putc(C, Stream) putc_unlocked (C, Stream)
84 : # endif
85 : # ifdef HAVE_PUTCHAR_UNLOCKED
86 : # undef putchar
87 : # define putchar(C) putchar_unlocked (C)
88 : # endif
89 : # ifdef HAVE_GETC_UNLOCKED
90 : # undef getc
91 : # define getc(Stream) getc_unlocked (Stream)
92 : # endif
93 : # ifdef HAVE_GETCHAR_UNLOCKED
94 : # undef getchar
95 : # define getchar() getchar_unlocked ()
96 : # endif
97 : # ifdef HAVE_FPUTC_UNLOCKED
98 : # undef fputc
99 : # define fputc(C, Stream) fputc_unlocked (C, Stream)
100 : # endif
101 :
102 : #ifdef __cplusplus
103 : extern "C" {
104 : #endif
105 :
106 : # ifdef HAVE_CLEARERR_UNLOCKED
107 : # undef clearerr
108 : # define clearerr(Stream) clearerr_unlocked (Stream)
109 : # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
110 : extern void clearerr_unlocked (FILE *);
111 : # endif
112 : # endif
113 : # ifdef HAVE_FEOF_UNLOCKED
114 : # undef feof
115 : # define feof(Stream) feof_unlocked (Stream)
116 : # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
117 : extern int feof_unlocked (FILE *);
118 : # endif
119 : # endif
120 : # ifdef HAVE_FILENO_UNLOCKED
121 : # undef fileno
122 : # define fileno(Stream) fileno_unlocked (Stream)
123 : # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
124 : extern int fileno_unlocked (FILE *);
125 : # endif
126 : # endif
127 : # ifdef HAVE_FFLUSH_UNLOCKED
128 : # undef fflush
129 : # define fflush(Stream) fflush_unlocked (Stream)
130 : # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
131 : extern int fflush_unlocked (FILE *);
132 : # endif
133 : # endif
134 : # ifdef HAVE_FGETC_UNLOCKED
135 : # undef fgetc
136 : # define fgetc(Stream) fgetc_unlocked (Stream)
137 : # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
138 : extern int fgetc_unlocked (FILE *);
139 : # endif
140 : # endif
141 : # ifdef HAVE_FGETS_UNLOCKED
142 : # undef fgets
143 : # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
144 : # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
145 : extern char *fgets_unlocked (char *, int, FILE *);
146 : # endif
147 : # endif
148 : # ifdef HAVE_FPUTS_UNLOCKED
149 : # undef fputs
150 : # define fputs(String, Stream) fputs_unlocked (String, Stream)
151 : # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
152 : extern int fputs_unlocked (const char *, FILE *);
153 : # endif
154 : # endif
155 : # ifdef HAVE_FERROR_UNLOCKED
156 : # undef ferror
157 : # define ferror(Stream) ferror_unlocked (Stream)
158 : # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
159 : extern int ferror_unlocked (FILE *);
160 : # endif
161 : # endif
162 : # ifdef HAVE_FREAD_UNLOCKED
163 : # undef fread
164 : # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
165 : # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
166 : extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
167 : # endif
168 : # endif
169 : # ifdef HAVE_FWRITE_UNLOCKED
170 : # undef fwrite
171 : # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
172 : # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
173 : extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
174 : # endif
175 : # endif
176 : # ifdef HAVE_FPRINTF_UNLOCKED
177 : # undef fprintf
178 : /* We can't use a function-like macro here because we don't know if
179 : we have varargs macros. */
180 : # define fprintf fprintf_unlocked
181 : # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
182 : extern int fprintf_unlocked (FILE *, const char *, ...);
183 : # endif
184 : # endif
185 :
186 : #ifdef __cplusplus
187 : }
188 : #endif
189 :
190 : #endif
191 :
192 : /* ??? Glibc's fwrite/fread_unlocked macros cause
193 : "warning: signed and unsigned type in conditional expression". */
194 : #undef fread_unlocked
195 : #undef fwrite_unlocked
196 :
197 : /* Include <string> before "safe-ctype.h" to avoid GCC poisoning
198 : the ctype macros through safe-ctype.h */
199 :
200 : #ifdef __cplusplus
201 : #ifdef INCLUDE_STRING
202 : # include <string>
203 : #endif
204 : #endif
205 :
206 : /* There are an extraordinary number of issues with <ctype.h>.
207 : The last straw is that it varies with the locale. Use libiberty's
208 : replacement instead. */
209 : #include "safe-ctype.h"
210 :
211 : #include <sys/types.h>
212 :
213 : #include <errno.h>
214 :
215 : #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
216 : extern int errno;
217 : #endif
218 :
219 : #ifdef __cplusplus
220 : #if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
221 : # include <algorithm>
222 : #endif
223 : #ifdef INCLUDE_LIST
224 : # include <list>
225 : #endif
226 : #ifdef INCLUDE_MAP
227 : # include <map>
228 : #endif
229 : #ifdef INCLUDE_SET
230 : # include <set>
231 : #endif
232 : #ifdef INCLUDE_VECTOR
233 : # include <vector>
234 : #endif
235 : #ifdef INCLUDE_ARRAY
236 : # include <array>
237 : #endif
238 : #ifdef INCLUDE_FUNCTIONAL
239 : # include <functional>
240 : #endif
241 : # include <cstring>
242 : # include <initializer_list>
243 : # include <new>
244 : # include <utility>
245 : # include <type_traits>
246 : #endif
247 :
248 : /* Some of glibc's string inlines cause warnings. Plus we'd rather
249 : rely on (and therefore test) GCC's string builtins. */
250 : #define __NO_STRING_INLINES
251 :
252 : #ifdef STRING_WITH_STRINGS
253 : # include <string.h>
254 : # include <strings.h>
255 : #else
256 : # ifdef HAVE_STRING_H
257 : # include <string.h>
258 : # else
259 : # ifdef HAVE_STRINGS_H
260 : # include <strings.h>
261 : # endif
262 : # endif
263 : #endif
264 :
265 : #ifdef HAVE_STDLIB_H
266 : # include <stdlib.h>
267 : #endif
268 :
269 : /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
270 : that it is processed before we poison "malloc"; otherwise, if a source
271 : file uses a standard library header that includes <cstdlib>, we will get
272 : an error about 'using std::malloc'. */
273 : #ifdef __cplusplus
274 : #include <cstdlib>
275 : #endif
276 :
277 : /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
278 : #undef vec_free
279 :
280 : /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
281 : FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
282 : or 0 and 1 if those macros are not defined. */
283 : #ifndef SUCCESS_EXIT_CODE
284 : # ifdef EXIT_SUCCESS
285 : # define SUCCESS_EXIT_CODE EXIT_SUCCESS
286 : # else
287 : # define SUCCESS_EXIT_CODE 0
288 : # endif
289 : #endif
290 :
291 : #ifndef FATAL_EXIT_CODE
292 : # ifdef EXIT_FAILURE
293 : # define FATAL_EXIT_CODE EXIT_FAILURE
294 : # else
295 : # define FATAL_EXIT_CODE 1
296 : # endif
297 : #endif
298 :
299 : #define ICE_EXIT_CODE 4
300 :
301 : #ifdef HAVE_UNISTD_H
302 : # include <unistd.h>
303 : #endif
304 :
305 : #ifdef HAVE_SYS_PARAM_H
306 : # include <sys/param.h>
307 : /* We use these identifiers later and they appear in some vendor param.h's. */
308 : # undef PREFETCH
309 : # undef m_slot
310 : #endif
311 :
312 : #if HAVE_LIMITS_H
313 : # include <limits.h>
314 : #endif
315 :
316 : /* A macro to determine whether a VALUE lies inclusively within a
317 : certain range without evaluating the VALUE more than once. This
318 : macro won't warn if the VALUE is unsigned and the LOWER bound is
319 : zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
320 : bound *is* evaluated twice, and LOWER must not be greater than
321 : UPPER. However the bounds themselves can be either positive or
322 : negative. */
323 : #define IN_RANGE(VALUE, LOWER, UPPER) \
324 : ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
325 : <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
326 :
327 : /* Infrastructure for defining missing _MAX and _MIN macros. Note that
328 : macros defined with these cannot be used in #if. */
329 :
330 : /* The extra casts work around common compiler bugs. */
331 : #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
332 : /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
333 : It is necessary at least when t == time_t. */
334 : #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
335 : ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
336 : #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
337 :
338 : /* Use that infrastructure to provide a few constants. */
339 : #ifndef UCHAR_MAX
340 : # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
341 : #endif
342 :
343 : #ifdef TIME_WITH_SYS_TIME
344 : # include <sys/time.h>
345 : # include <time.h>
346 : #else
347 : # if HAVE_SYS_TIME_H
348 : # include <sys/time.h>
349 : # else
350 : # ifdef HAVE_TIME_H
351 : # include <time.h>
352 : # endif
353 : # endif
354 : #endif
355 :
356 : #ifdef HAVE_FCNTL_H
357 : # include <fcntl.h>
358 : #else
359 : # ifdef HAVE_SYS_FILE_H
360 : # include <sys/file.h>
361 : # endif
362 : #endif
363 :
364 : #ifdef HAVE_SYS_LOCKING_H
365 : # include <sys/locking.h>
366 : #endif
367 :
368 : #ifndef SEEK_SET
369 : # define SEEK_SET 0
370 : # define SEEK_CUR 1
371 : # define SEEK_END 2
372 : #endif
373 : #ifndef F_OK
374 : # define F_OK 0
375 : # define X_OK 1
376 : # define W_OK 2
377 : # define R_OK 4
378 : #endif
379 : #ifndef O_RDONLY
380 : # define O_RDONLY 0
381 : #endif
382 : #ifndef O_WRONLY
383 : # define O_WRONLY 1
384 : #endif
385 : #ifndef O_BINARY
386 : # define O_BINARY 0
387 : #endif
388 :
389 : /* Some systems define these in, e.g., param.h. We undefine these names
390 : here to avoid the warnings. We prefer to use our definitions since we
391 : know they are correct. */
392 :
393 : #undef MIN
394 : #undef MAX
395 : #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
396 : #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
397 :
398 : /* Returns the least number N such that N * Y >= X. */
399 : #define CEIL(x,y) (((x) + (y) - 1) / (y))
400 :
401 : /* This macro rounds x up to the y boundary. */
402 : #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
403 :
404 : /* This macro rounds x down to the y boundary. */
405 : #define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
406 :
407 : #ifdef HAVE_SYS_WAIT_H
408 : #include <sys/wait.h>
409 : #endif
410 :
411 : #ifndef WIFSIGNALED
412 : #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
413 : #endif
414 : #ifndef WTERMSIG
415 : #define WTERMSIG(S) ((S) & 0x7f)
416 : #endif
417 : #ifndef WIFEXITED
418 : #define WIFEXITED(S) (((S) & 0xff) == 0)
419 : #endif
420 : #ifndef WEXITSTATUS
421 : #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
422 : #endif
423 : #ifndef WSTOPSIG
424 : #define WSTOPSIG WEXITSTATUS
425 : #endif
426 : #ifndef WCOREDUMP
427 : #define WCOREDUMP(S) ((S) & WCOREFLG)
428 : #endif
429 : #ifndef WCOREFLG
430 : #define WCOREFLG 0200
431 : #endif
432 :
433 : #include <signal.h>
434 : #if !defined (SIGCHLD) && defined (SIGCLD)
435 : # define SIGCHLD SIGCLD
436 : #endif
437 :
438 : #ifdef HAVE_SYS_MMAN_H
439 : # include <sys/mman.h>
440 : #endif
441 :
442 : #ifndef MAP_FAILED
443 : # define MAP_FAILED ((void *)-1)
444 : #endif
445 :
446 : #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
447 : # define MAP_ANONYMOUS MAP_ANON
448 : #endif
449 :
450 : #ifdef HAVE_SYS_RESOURCE_H
451 : # include <sys/resource.h>
452 : #endif
453 :
454 : #ifdef HAVE_SYS_TIMES_H
455 : # include <sys/times.h>
456 : #endif
457 :
458 : /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
459 : are defined to 0 then we must provide the relevant declaration
460 : here. These checks will be in the undefined state while configure
461 : is running so be careful to test "defined (HAVE_DECL_*)". */
462 :
463 : #ifdef __cplusplus
464 : extern "C" {
465 : #endif
466 :
467 : #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
468 : extern double atof (const char *);
469 : #endif
470 :
471 : #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
472 : extern long atol (const char *);
473 : #endif
474 :
475 : #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
476 : extern void free (void *);
477 : #endif
478 :
479 : #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
480 : extern char *getcwd (char *, size_t);
481 : #endif
482 :
483 : #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
484 : extern char *getenv (const char *);
485 : #endif
486 :
487 : #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
488 : extern int getopt (int, char * const *, const char *);
489 : #endif
490 :
491 : #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
492 : extern int getpagesize (void);
493 : #endif
494 :
495 : #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
496 : extern char *getwd (char *);
497 : #endif
498 :
499 : #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
500 : extern void *sbrk (int);
501 : #endif
502 :
503 : #if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
504 : int setenv(const char *, const char *, int);
505 : #endif
506 :
507 : #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
508 : extern char *strstr (const char *, const char *);
509 : #endif
510 :
511 : #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
512 : extern char *stpcpy (char *, const char *);
513 : #endif
514 :
515 : #if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
516 : int unsetenv(const char *);
517 : #endif
518 :
519 : #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
520 : extern void *malloc (size_t);
521 : #endif
522 :
523 : #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
524 : extern void *calloc (size_t, size_t);
525 : #endif
526 :
527 : #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
528 : extern void *realloc (void *, size_t);
529 : #endif
530 :
531 : #ifdef __cplusplus
532 : }
533 : #endif
534 :
535 : #ifdef HAVE_STDINT_H
536 : #include <stdint.h>
537 : #endif
538 :
539 : #ifdef HAVE_INTTYPES_H
540 : #include <inttypes.h>
541 : #endif
542 :
543 : #ifndef SIZE_MAX
544 : # define SIZE_MAX INTTYPE_MAXIMUM (size_t)
545 : #endif
546 :
547 : #ifdef __cplusplus
548 : extern "C" {
549 : #endif
550 :
551 : /* If the system doesn't provide strsignal, we get it defined in
552 : libiberty but no declaration is supplied. */
553 : #if !defined (HAVE_STRSIGNAL) \
554 : || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
555 : # ifndef strsignal
556 : extern const char *strsignal (int);
557 : # endif
558 : #endif
559 :
560 : #ifdef HAVE_GETRLIMIT
561 : # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
562 : # ifndef getrlimit
563 : struct rlimit;
564 : extern int getrlimit (int, struct rlimit *);
565 : # endif
566 : # endif
567 : #endif
568 :
569 : #ifdef HAVE_SETRLIMIT
570 : # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
571 : # ifndef setrlimit
572 : struct rlimit;
573 : extern int setrlimit (int, const struct rlimit *);
574 : # endif
575 : # endif
576 : #endif
577 :
578 : #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
579 : extern void abort (void);
580 : #endif
581 :
582 : #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
583 : extern int snprintf (char *, size_t, const char *, ...);
584 : #endif
585 :
586 : #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
587 : extern int vsnprintf (char *, size_t, const char *, va_list);
588 : #endif
589 :
590 : #ifdef __cplusplus
591 : }
592 : #endif
593 :
594 : /* 1 if we have C99 designated initializers. */
595 : #if !defined(HAVE_DESIGNATED_INITIALIZERS)
596 : #ifdef __cplusplus
597 : #define HAVE_DESIGNATED_INITIALIZERS 0
598 : #else
599 : #define HAVE_DESIGNATED_INITIALIZERS \
600 : ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
601 : #endif
602 : #endif
603 :
604 : #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
605 : #ifdef __cplusplus
606 : #define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
607 : #else
608 : #define HAVE_DESIGNATED_UNION_INITIALIZERS \
609 : ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
610 : #endif
611 : #endif
612 :
613 : #if HAVE_SYS_STAT_H
614 : # include <sys/stat.h>
615 : #endif
616 :
617 : /* Test if something is a normal file. */
618 : #ifndef S_ISREG
619 : #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
620 : #endif
621 :
622 : /* Test if something is a directory. */
623 : #ifndef S_ISDIR
624 : #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
625 : #endif
626 :
627 : /* Test if something is a character special file. */
628 : #ifndef S_ISCHR
629 : #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
630 : #endif
631 :
632 : /* Test if something is a block special file. */
633 : #ifndef S_ISBLK
634 : #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
635 : #endif
636 :
637 : /* Test if something is a socket. */
638 : #ifndef S_ISSOCK
639 : # ifdef S_IFSOCK
640 : # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
641 : # else
642 : # define S_ISSOCK(m) 0
643 : # endif
644 : #endif
645 :
646 : /* Test if something is a FIFO. */
647 : #ifndef S_ISFIFO
648 : # ifdef S_IFIFO
649 : # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
650 : # else
651 : # define S_ISFIFO(m) 0
652 : # endif
653 : #endif
654 :
655 : /* Define well known filenos if the system does not define them. */
656 : #ifndef STDIN_FILENO
657 : # define STDIN_FILENO 0
658 : #endif
659 : #ifndef STDOUT_FILENO
660 : # define STDOUT_FILENO 1
661 : #endif
662 : #ifndef STDERR_FILENO
663 : # define STDERR_FILENO 2
664 : #endif
665 :
666 : /* Some systems have mkdir that takes a single argument. */
667 : #ifdef MKDIR_TAKES_ONE_ARG
668 : # define mkdir(a,b) mkdir (a)
669 : #endif
670 :
671 : #ifndef HAVE_KILL
672 : # define kill(p,s) raise (s)
673 : #endif
674 :
675 : /* Provide a way to print an address via printf. */
676 : #ifndef HOST_PTR_PRINTF
677 : #define HOST_PTR_PRINTF "%p"
678 : #endif /* ! HOST_PTR_PRINTF */
679 :
680 : /* By default, colon separates directories in a path. */
681 : #ifndef PATH_SEPARATOR
682 : #define PATH_SEPARATOR ':'
683 : #endif
684 :
685 : /* Filename handling macros. */
686 : #include "filenames.h"
687 :
688 : /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
689 : #ifndef DIR_SEPARATOR
690 : # define DIR_SEPARATOR '/'
691 : # ifdef HAVE_DOS_BASED_FILE_SYSTEM
692 : # define DIR_SEPARATOR_2 '\\'
693 : # endif
694 : #endif
695 :
696 : #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
697 : /* If plugin support is enabled, we could use libdl. */
698 : #include <dlfcn.h>
699 : #endif
700 :
701 : /* Do not introduce a gmp.h dependency on the build system. */
702 : #ifndef GENERATOR_FILE
703 : #include <gmp.h>
704 :
705 : class auto_mpz
706 : {
707 : public:
708 : auto_mpz () { mpz_init (m_mpz); }
709 : ~auto_mpz () { mpz_clear (m_mpz); }
710 :
711 : operator mpz_t& () { return m_mpz; }
712 : mpz_ptr operator-> () { return m_mpz; }
713 :
714 : auto_mpz (const auto_mpz &) = delete;
715 : auto_mpz &operator= (const auto_mpz &) = delete;
716 :
717 : #if GCC_VERSION < 4008 || GCC_VERSION >= 5000
718 : /* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */
719 : friend void mpz_clear (auto_mpz&) = delete;
720 : friend void mpz_init (auto_mpz&) = delete;
721 : #endif
722 :
723 : private:
724 : mpz_t m_mpz;
725 : };
726 : #endif
727 :
728 : /* Get libiberty declarations. */
729 : #include "libiberty.h"
730 :
731 : #undef FFS /* Some systems predefine this symbol; don't let it interfere. */
732 : #undef FLOAT /* Likewise. */
733 : #undef ABS /* Likewise. */
734 : #undef PC /* Likewise. */
735 :
736 : /* Provide a default for the HOST_BIT_BUCKET.
737 : This suffices for POSIX-like hosts. */
738 :
739 : #ifndef HOST_BIT_BUCKET
740 : #define HOST_BIT_BUCKET "/dev/null"
741 : #endif
742 :
743 : #ifndef offsetof
744 : #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
745 : #endif
746 :
747 : /* Various error reporting routines want to use __FUNCTION__. */
748 : #if (GCC_VERSION < 2007)
749 : #ifndef __FUNCTION__
750 : #define __FUNCTION__ "?"
751 : #endif /* ! __FUNCTION__ */
752 : #endif
753 :
754 : /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
755 : the most likely value of A is B. This feature was added at some point
756 : between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
757 : #if (GCC_VERSION < 3000)
758 : #define __builtin_expect(a, b) (a)
759 : #endif
760 :
761 : #define LIKELY(x) (__builtin_expect ((x), 1))
762 : #define UNLIKELY(x) (__builtin_expect ((x), 0))
763 :
764 : /* Some of the headers included by <memory> can use "abort" within a
765 : namespace, e.g. "_VSTD::abort();", which fails after we use the
766 : preprocessor to redefine "abort" as "fancy_abort" below. */
767 :
768 : #ifdef INCLUDE_MEMORY
769 : # include <memory>
770 : #endif
771 :
772 : #ifdef INCLUDE_MUTEX
773 : # include <mutex>
774 : #endif
775 :
776 : #ifdef INCLUDE_SSTREAM
777 : # include <sstream>
778 : #endif
779 :
780 : #ifdef INCLUDE_MALLOC_H
781 : #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
782 : #include <malloc.h>
783 : #endif
784 : #endif
785 :
786 : #ifdef INCLUDE_ISL
787 : #ifdef HAVE_isl
788 : #include <isl/options.h>
789 : #include <isl/ctx.h>
790 : #include <isl/val.h>
791 : #include <isl/set.h>
792 : #include <isl/union_set.h>
793 : #include <isl/map.h>
794 : #include <isl/union_map.h>
795 : #include <isl/aff.h>
796 : #include <isl/constraint.h>
797 : #include <isl/flow.h>
798 : #include <isl/ilp.h>
799 : #include <isl/schedule.h>
800 : #include <isl/ast_build.h>
801 : #include <isl/schedule_node.h>
802 : #include <isl/id.h>
803 : #include <isl/space.h>
804 : #endif
805 : #endif
806 :
807 : /* Redefine 'abort' to report an internal error w/o coredump, and
808 : reporting the location of the error in the source file.
809 : Instead of directly calling 'abort' or 'fancy_abort', GCC code
810 : should normally call 'internal_error' with a specific message. */
811 : extern void fancy_abort (const char *, int, const char *)
812 : ATTRIBUTE_NORETURN ATTRIBUTE_COLD;
813 : #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
814 :
815 : /* Use gcc_assert(EXPR) to test invariants. */
816 : #if ENABLE_ASSERT_CHECKING
817 : #define gcc_assert(EXPR) \
818 : ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
819 : #elif (GCC_VERSION >= 4005)
820 : #define gcc_assert(EXPR) \
821 : ((void)(UNLIKELY (!(EXPR)) ? __builtin_unreachable (), 0 : 0))
822 : #else
823 : /* Include EXPR, so that unused variable warnings do not occur. */
824 : #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
825 : #endif
826 :
827 : #if CHECKING_P
828 : #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
829 : #else
830 : /* N.B.: in release build EXPR is not evaluated. */
831 : #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
832 : #endif
833 :
834 : #if GCC_VERSION >= 4000
835 : #define ALWAYS_INLINE inline __attribute__ ((always_inline))
836 : #else
837 : #define ALWAYS_INLINE inline
838 : #endif
839 :
840 : #if GCC_VERSION >= 3004
841 : #define WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
842 : #else
843 : #define WARN_UNUSED_RESULT
844 : #endif
845 :
846 : /* Use gcc_unreachable() to mark unreachable locations (like an
847 : unreachable default case of a switch. Do not use gcc_assert(0). */
848 : #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
849 : #define gcc_unreachable() __builtin_unreachable ()
850 : #else
851 : #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
852 : #endif
853 :
854 : #if GCC_VERSION >= 7000 && defined(__has_attribute)
855 : # if __has_attribute(fallthrough)
856 : # define gcc_fallthrough() __attribute__((fallthrough))
857 : # else
858 : # define gcc_fallthrough()
859 : # endif
860 : #else
861 : # define gcc_fallthrough()
862 : #endif
863 :
864 : #if GCC_VERSION >= 3001
865 : #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
866 : #else
867 : #define STATIC_CONSTANT_P(X) (false && (X))
868 : #endif
869 :
870 : #ifdef __cplusplus
871 : #define STATIC_ASSERT(X) \
872 : static_assert ((X), #X)
873 : #else
874 : #define STATIC_ASSERT(X) \
875 : typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
876 : #endif
877 :
878 : /* Provide a fake boolean type. We make no attempt to use the
879 : C99 _Bool, as it may not be available in the bootstrap compiler,
880 : and even if it is, it is liable to be buggy.
881 : This must be after all inclusion of system headers, as some of
882 : them will mess us up. */
883 :
884 : #undef TRUE
885 : #undef FALSE
886 :
887 : #ifdef __cplusplus
888 : /* Obsolete. */
889 : # define TRUE true
890 : # define FALSE false
891 : #else /* !__cplusplus */
892 : # undef bool
893 : # undef true
894 : # undef false
895 :
896 : # define bool unsigned char
897 : # define true 1
898 : # define false 0
899 :
900 : /* Obsolete. */
901 : # define TRUE true
902 : # define FALSE false
903 : #endif /* !__cplusplus */
904 :
905 : /* Some compilers do not allow the use of unsigned char in bitfields. */
906 : #define BOOL_BITFIELD unsigned int
907 :
908 : /* GCC older than 4.4 have broken C++ value initialization handling, see
909 : PR11309, PR30111, PR33916, PR82939 and PR84405 for more details. */
910 : #if GCC_VERSION > 0 && GCC_VERSION < 4004 && !defined(__clang__)
911 : # define BROKEN_VALUE_INITIALIZATION
912 : #endif
913 :
914 : /* As the last action in this file, we poison the identifiers that
915 : shouldn't be used. Note, luckily gcc-3.0's token-based integrated
916 : preprocessor won't trip on poisoned identifiers that arrive from
917 : the expansion of macros. E.g. #define strrchr rindex, won't error
918 : if rindex is poisoned after this directive is issued and later on
919 : strrchr is called.
920 :
921 : Note: We define bypass macros for the few cases where we really
922 : want to use the libc memory allocation routines. Otherwise we
923 : insist you use the "x" versions from libiberty. */
924 :
925 : #define really_call_malloc malloc
926 : #define really_call_calloc calloc
927 : #define really_call_realloc realloc
928 :
929 : #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
930 : /* Flex and bison use malloc and realloc. Yuk. Note that this means
931 : really_call_* cannot be used in a .l or .y file. */
932 : #define malloc xmalloc
933 : #define realloc xrealloc
934 : #endif
935 :
936 : #if (GCC_VERSION >= 3000)
937 :
938 : /* Note autoconf checks for prototype declarations and includes
939 : system.h while doing so. Only poison these tokens if actually
940 : compiling gcc, so that the autoconf declaration tests for malloc
941 : etc don't spuriously fail. */
942 : #ifdef IN_GCC
943 :
944 : #undef calloc
945 : #undef strdup
946 : #undef strndup
947 : #pragma GCC poison calloc strdup strndup
948 :
949 : #if !defined(FLEX_SCANNER) && !defined(YYBISON)
950 : #undef malloc
951 : #undef realloc
952 : #pragma GCC poison malloc realloc
953 : #endif
954 :
955 : /* The %m format should be used when GCC's main diagnostic functions
956 : supporting %m are available, and xstrerror from libiberty
957 : otherwise. */
958 : #undef strerror
959 : #pragma GCC poison strerror
960 :
961 : /* loc_t is defined on some systems and too inviting for some
962 : programmers to avoid. */
963 : #undef loc_t
964 : #pragma GCC poison loc_t
965 :
966 : /* Old target macros that have moved to the target hooks structure. */
967 : #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
968 : FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
969 : FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
970 : DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
971 : VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
972 : SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
973 : MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
974 : MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
975 : ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
976 : WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
977 : ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
978 : ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
979 : ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
980 : ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
981 : INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
982 : DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
983 : MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
984 : PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
985 : ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
986 : STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
987 : PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
988 : SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
989 : DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
990 : HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
991 : MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
992 : VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
993 : FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
994 : ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
995 : CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
996 : TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
997 : RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
998 : OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
999 : USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
1000 : CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
1001 : HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
1002 : OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
1003 : ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
1004 : LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
1005 : CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
1006 : STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD \
1007 : HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK \
1008 : MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS \
1009 : HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE \
1010 : SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS \
1011 : TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT \
1012 : STARTING_FRAME_OFFSET
1013 :
1014 : /* Target macros only used for code built for the target, that have
1015 : moved to libgcc-tm.h or have never been present elsewhere. */
1016 : #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
1017 : MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
1018 : REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
1019 :
1020 : /* Other obsolete target macros, or macros that used to be in target
1021 : headers and were not used, and may be obsolete or may never have
1022 : been used. */
1023 : #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
1024 : ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
1025 : DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
1026 : OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
1027 : LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
1028 : STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
1029 : SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
1030 : TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
1031 : NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
1032 : BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
1033 : FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
1034 : MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
1035 : ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
1036 : OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
1037 : ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
1038 : INSN_CACHE_DEPTH INSN_CACHE_SIZE \
1039 : INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
1040 : EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
1041 : LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
1042 : LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
1043 : CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
1044 : FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
1045 : PROMOTED_MODE EXPAND_BUILTIN_VA_END \
1046 : LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
1047 : GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
1048 : MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
1049 : FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
1050 : TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
1051 : BUILTIN_SETJMP_FRAME_VALUE \
1052 : SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
1053 : SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
1054 : DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
1055 : COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
1056 : ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
1057 : GDB_INV_REF_REGPARM_STABS_LETTER \
1058 : PUT_SDB_SRC_FILE STABS_GCC_MARKER SDB_GENERATE_FAKE \
1059 : NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
1060 : CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
1061 : TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
1062 : LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
1063 : TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
1064 : PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
1065 : EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
1066 : TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
1067 : SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
1068 : ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
1069 : STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
1070 : ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
1071 : ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
1072 : SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
1073 : TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
1074 : HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
1075 : FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
1076 : USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
1077 : FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
1078 : MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
1079 : SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
1080 : PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
1081 : STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
1082 : LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
1083 : IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES \
1084 : RANGE_TEST_NON_SHORT_CIRCUIT \
1085 : REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
1086 : TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
1087 : IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
1088 : UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
1089 : USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
1090 : CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
1091 : GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
1092 : ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
1093 : REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
1094 : CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
1095 : REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
1096 : EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
1097 : EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
1098 : CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
1099 : ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
1100 : LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \
1101 : EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \
1102 : JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO \
1103 : SDB_DEBUG NO_IMPLICIT_EXTERN_C NOTICE_UPDATE_CC \
1104 : CC_STATUS_MDEP_INIT CC_STATUS_MDEP CC_STATUS SLOW_SHORT_ACCESS
1105 :
1106 : /* Hooks that are no longer used. */
1107 : #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
1108 : LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
1109 : LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
1110 : LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
1111 : LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
1112 : LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
1113 : TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
1114 : LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1115 : TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
1116 : TARGET_IRA_COVER_CLASSES TARGET_HELP \
1117 : TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
1118 : TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
1119 : TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
1120 : TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
1121 : EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
1122 : TARGET_INVALID_RETURN_TYPE
1123 :
1124 : /* Arrays that were deleted in favor of a functional interface. */
1125 : #pragma GCC poison built_in_decls implicit_built_in_decls
1126 :
1127 : /* Hooks into libgcc2. */
1128 : #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
1129 : LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
1130 :
1131 : /* Miscellaneous macros that are no longer used. */
1132 : #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
1133 :
1134 : /* Libiberty macros that are no longer used in GCC. */
1135 : #undef ANSI_PROTOTYPES
1136 : #undef PTR_CONST
1137 : #undef LONG_DOUBLE
1138 : #undef VPARAMS
1139 : #undef VA_OPEN
1140 : #undef VA_FIXEDARG
1141 : #undef VA_CLOSE
1142 : #undef VA_START
1143 : #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
1144 : VA_FIXEDARG VA_CLOSE VA_START
1145 : #endif /* IN_GCC */
1146 :
1147 : /* Front ends should never have to include middle-end headers. Enforce
1148 : this by poisoning the header double-include protection defines. */
1149 : #ifdef IN_GCC_FRONTEND
1150 : #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
1151 : #endif
1152 :
1153 : /* Note: not all uses of the `index' token (e.g. variable names and
1154 : structure members) have been eliminated. */
1155 : #undef bcopy
1156 : #undef bzero
1157 : #undef bcmp
1158 : #undef rindex
1159 : #pragma GCC poison bcopy bzero bcmp rindex
1160 :
1161 : /* Poison ENABLE_CHECKING macro that should be replaced with
1162 : 'if (flag_checking)', or with CHECKING_P macro. */
1163 : #pragma GCC poison ENABLE_CHECKING
1164 :
1165 : #endif /* GCC >= 3.0 */
1166 :
1167 : /* This macro allows casting away const-ness to pass -Wcast-qual
1168 : warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
1169 : only be used in certain specific cases. One valid case is where
1170 : the C standard definitions or prototypes force you to. E.g. if you
1171 : need to free a const object, or if you pass a const string to
1172 : execv, et al. Another valid use would be in an allocation function
1173 : that creates const objects that need to be initialized. In some
1174 : cases we have non-const functions that return the argument
1175 : (e.g. next_nonnote_insn). Rather than create const shadow
1176 : functions, we can cast away const-ness in calling these interfaces
1177 : if we're careful to verify that the called function does indeed not
1178 : modify its argument and the return value is only used in a const
1179 : context. (This can be somewhat dangerous as these assumptions can
1180 : change after the fact). Beyond these uses, most other cases of
1181 : using this macro should be viewed with extreme caution. */
1182 :
1183 : #ifdef __cplusplus
1184 : #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1185 : #else
1186 : #if defined(__GNUC__) && GCC_VERSION > 4000
1187 : /* GCC 4.0.x has a bug where it may ICE on this expression,
1188 : so does GCC 3.4.x (PR17436). */
1189 : #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
1190 : #elif defined(__GNUC__)
1191 : inline char *
1192 : helper_const_non_const_cast (const char *p)
1193 : {
1194 : union {
1195 : const char *const_c;
1196 : char *c;
1197 : } val;
1198 : val.const_c = p;
1199 : return val.c;
1200 : }
1201 :
1202 : #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1203 : ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1204 : #else
1205 : #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1206 : #endif
1207 : #endif
1208 : #define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1209 : #define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1210 : #define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
1211 : #define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
1212 : #define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
1213 : #define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
1214 :
1215 : /* Activate certain diagnostics as warnings (not errors via the
1216 : -Werror flag). */
1217 : #if GCC_VERSION >= 4003
1218 : /* If asserts are disabled, activate -Wuninitialized as a warning (not
1219 : an error/-Werror). */
1220 : #ifndef ENABLE_ASSERT_CHECKING
1221 : #pragma GCC diagnostic warning "-Wuninitialized"
1222 : #endif
1223 : #endif
1224 :
1225 : #ifdef ENABLE_VALGRIND_ANNOTATIONS
1226 : # ifdef HAVE_VALGRIND_MEMCHECK_H
1227 : # include <valgrind/memcheck.h>
1228 : # elif defined HAVE_MEMCHECK_H
1229 : # include <memcheck.h>
1230 : # else
1231 : # include <valgrind.h>
1232 : # endif
1233 : /* Compatibility macros to let valgrind 3.1 work. */
1234 : # ifndef VALGRIND_MAKE_MEM_NOACCESS
1235 : # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1236 : # endif
1237 : # ifndef VALGRIND_MAKE_MEM_DEFINED
1238 : # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1239 : # endif
1240 : # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1241 : # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1242 : # endif
1243 : #else
1244 : /* Avoid #ifdef:s when we can help it. */
1245 : #define VALGRIND_DISCARD(x)
1246 : #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1247 : #define VALGRIND_FREELIKE_BLOCK(x,y)
1248 : #endif
1249 :
1250 : /* Macros to temporarily ignore some warnings. */
1251 : #if GCC_VERSION >= 6000
1252 : #define GCC_DIAGNOSTIC_STRINGIFY(x) #x
1253 : #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
1254 : _Pragma ("GCC diagnostic push") \
1255 : _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
1256 : #define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
1257 : #else
1258 : #define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
1259 : #define GCC_DIAGNOSTIC_POP
1260 : #endif
1261 :
1262 : /* In LTO -fwhole-program build we still want to keep the debug functions available
1263 : for debugger. Mark them as used to prevent removal. */
1264 : #if (GCC_VERSION > 4000)
1265 : #define DEBUG_FUNCTION __attribute__ ((__used__))
1266 : #define DEBUG_VARIABLE __attribute__ ((__used__))
1267 : #else
1268 : #define DEBUG_FUNCTION
1269 : #define DEBUG_VARIABLE
1270 : #endif
1271 :
1272 : /* General macro to extract bit Y of X. */
1273 : #define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1274 :
1275 : /* Get definitions of HOST_WIDE_INT. */
1276 : #include "hwint.h"
1277 :
1278 : typedef int sort_r_cmp_fn (const void *, const void *, void *);
1279 : void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1280 : void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1281 : void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *));
1282 : void gcc_stablesort (void *, size_t, size_t,
1283 : int (*)(const void *, const void *));
1284 : void gcc_stablesort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *data);
1285 : /* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations
1286 : correspond to vec::qsort, and use C qsort internally. */
1287 : #define PP_5th(a1, a2, a3, a4, a5, ...) a5
1288 : #undef qsort
1289 : #define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__)
1290 :
1291 : #define ONE_K 1024
1292 : #define ONE_M (ONE_K * ONE_K)
1293 : #define ONE_G (ONE_K * ONE_M)
1294 :
1295 : /* Display a number as an integer multiple of either:
1296 : - 1024, if said integer is >= to 10 K (in base 2)
1297 : - 1024 * 1024, if said integer is >= 10 M in (base 2)
1298 : */
1299 : #define SIZE_SCALE(x) (((x) < 10 * ONE_K \
1300 : ? (x) \
1301 : : ((x) < 10 * ONE_M \
1302 : ? (x) / ONE_K \
1303 : : (x) / ONE_M)))
1304 :
1305 : /* For a given integer, display either:
1306 : - the character 'k', if the number is higher than 10 K (in base 2)
1307 : but strictly lower than 10 M (in base 2)
1308 : - the character 'M' if the number is higher than 10 M (in base2)
1309 : - the charcter ' ' if the number is strictly lower than 10 K */
1310 : #define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
1311 :
1312 : /* Display an integer amount as multiple of 1K or 1M (in base 2).
1313 : Display the correct unit (either k, M, or ' ') after the amount, as
1314 : well. */
1315 : #define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size)
1316 :
1317 : /* Format string particle for printing a SIZE_AMOUNT with N being the width
1318 : of the number. */
1319 : #define PRsa(n) "%" #n PRIu64 "%c"
1320 :
1321 : /* System headers may define NULL to be an integer (e.g. 0L), which cannot be
1322 : used safely in certain contexts (e.g. as sentinels). Redefine NULL to
1323 : nullptr in order to make it safer. Note that this might confuse system
1324 : headers, however, by convention they must not be included after this point.
1325 : */
1326 : #ifdef __cplusplus
1327 : #undef NULL
1328 : #define NULL nullptr
1329 : #endif
1330 :
1331 : /* Return true if STR string starts with PREFIX. */
1332 :
1333 : inline bool
1334 289245332 : startswith (const char *str, const char *prefix)
1335 : {
1336 289245332 : return strncmp (str, prefix, strlen (prefix)) == 0;
1337 : }
1338 :
1339 : /* Return true if STR string ends with SUFFIX. */
1340 :
1341 : inline bool
1342 : endswith (const char *str, const char *suffix)
1343 : {
1344 : size_t str_len = strlen (str);
1345 : size_t suffix_len = strlen (suffix);
1346 : if (str_len < suffix_len)
1347 : return false;
1348 :
1349 : return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0;
1350 : }
1351 :
1352 : #endif /* ! GCC_SYSTEM_H */
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