1 /* Get common system includes and various definitions and declarations based
2 on autoconf macros.
3 Copyright (C) 1998-2020 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 #ifndef GENERATOR_FILE
47 #ifdef __cplusplus
48 # include <cstdio>
49 #endif
50 #endif
51
52 #include <stdio.h>
53
54 /* Define a generic NULL if one hasn't already been defined. */
55 #ifndef NULL
56 #define NULL 0
57 #endif
58
59 /* Use the unlocked open routines from libiberty. */
60
61 /* Some of these are #define on some systems, e.g. on AIX to redirect
62 the names to 64bit capable functions for LARGE_FILES support. These
63 redefs are pointless here so we can override them. */
64
65 #undef fopen
66 #undef freopen
67
68 #define fopen(PATH, MODE) fopen_unlocked (PATH, MODE)
69 #define fdopen(FILDES, MODE) fdopen_unlocked (FILDES, MODE)
70 #define freopen(PATH, MODE, STREAM) freopen_unlocked (PATH, MODE, STREAM)
71
72 /* The compiler is not a multi-threaded application and therefore we
73 do not have to use the locking functions. In fact, using the locking
74 functions can cause the compiler to be significantly slower under
75 I/O bound conditions (such as -g -O0 on very large source files).
76
77 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
78 code is multi-thread safe by default. If it is set to 0, then do
79 not worry about using the _unlocked functions.
80
81 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
82 extensions and need to be prototyped by hand (since we do not
83 define _GNU_SOURCE). */
84
85 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
86
87 # ifdef HAVE_PUTC_UNLOCKED
88 # undef putc
89 # define putc(C, Stream) putc_unlocked (C, Stream)
90 # endif
91 # ifdef HAVE_PUTCHAR_UNLOCKED
92 # undef putchar
93 # define putchar(C) putchar_unlocked (C)
94 # endif
95 # ifdef HAVE_GETC_UNLOCKED
96 # undef getc
97 # define getc(Stream) getc_unlocked (Stream)
98 # endif
99 # ifdef HAVE_GETCHAR_UNLOCKED
100 # undef getchar
101 # define getchar() getchar_unlocked ()
102 # endif
103 # ifdef HAVE_FPUTC_UNLOCKED
104 # undef fputc
105 # define fputc(C, Stream) fputc_unlocked (C, Stream)
106 # endif
107
108 #ifdef __cplusplus
109 extern "C" {
110 #endif
111
112 # ifdef HAVE_CLEARERR_UNLOCKED
113 # undef clearerr
114 # define clearerr(Stream) clearerr_unlocked (Stream)
115 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
116 extern void clearerr_unlocked (FILE *);
117 # endif
118 # endif
119 # ifdef HAVE_FEOF_UNLOCKED
120 # undef feof
121 # define feof(Stream) feof_unlocked (Stream)
122 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
123 extern int feof_unlocked (FILE *);
124 # endif
125 # endif
126 # ifdef HAVE_FILENO_UNLOCKED
127 # undef fileno
128 # define fileno(Stream) fileno_unlocked (Stream)
129 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
130 extern int fileno_unlocked (FILE *);
131 # endif
132 # endif
133 # ifdef HAVE_FFLUSH_UNLOCKED
134 # undef fflush
135 # define fflush(Stream) fflush_unlocked (Stream)
136 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
137 extern int fflush_unlocked (FILE *);
138 # endif
139 # endif
140 # ifdef HAVE_FGETC_UNLOCKED
141 # undef fgetc
142 # define fgetc(Stream) fgetc_unlocked (Stream)
143 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
144 extern int fgetc_unlocked (FILE *);
145 # endif
146 # endif
147 # ifdef HAVE_FGETS_UNLOCKED
148 # undef fgets
149 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
150 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
151 extern char *fgets_unlocked (char *, int, FILE *);
152 # endif
153 # endif
154 # ifdef HAVE_FPUTS_UNLOCKED
155 # undef fputs
156 # define fputs(String, Stream) fputs_unlocked (String, Stream)
157 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
158 extern int fputs_unlocked (const char *, FILE *);
159 # endif
160 # endif
161 # ifdef HAVE_FERROR_UNLOCKED
162 # undef ferror
163 # define ferror(Stream) ferror_unlocked (Stream)
164 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
165 extern int ferror_unlocked (FILE *);
166 # endif
167 # endif
168 # ifdef HAVE_FREAD_UNLOCKED
169 # undef fread
170 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
171 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
172 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
173 # endif
174 # endif
175 # ifdef HAVE_FWRITE_UNLOCKED
176 # undef fwrite
177 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
178 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
179 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
180 # endif
181 # endif
182 # ifdef HAVE_FPRINTF_UNLOCKED
183 # undef fprintf
184 /* We can't use a function-like macro here because we don't know if
185 we have varargs macros. */
186 # define fprintf fprintf_unlocked
187 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
188 extern int fprintf_unlocked (FILE *, const char *, ...);
189 # endif
190 # endif
191
192 #ifdef __cplusplus
193 }
194 #endif
195
196 #endif
197
198 /* ??? Glibc's fwrite/fread_unlocked macros cause
199 "warning: signed and unsigned type in conditional expression". */
200 #undef fread_unlocked
201 #undef fwrite_unlocked
202
203 /* Include <string> before "safe-ctype.h" to avoid GCC poisoning
204 the ctype macros through safe-ctype.h */
205
206 #ifdef __cplusplus
207 #ifdef INCLUDE_STRING
208 # include <string>
209 #endif
210 #endif
211
212 /* There are an extraordinary number of issues with <ctype.h>.
213 The last straw is that it varies with the locale. Use libiberty's
214 replacement instead. */
215 #include "safe-ctype.h"
216
217 #include <sys/types.h>
218
219 #include <errno.h>
220
221 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
222 extern int errno;
223 #endif
224
225 #ifdef __cplusplus
226 #if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
227 # include <algorithm>
228 #endif
229 #ifdef INCLUDE_LIST
230 # include <list>
231 #endif
232 #ifdef INCLUDE_MAP
233 # include <map>
234 #endif
235 #ifdef INCLUDE_SET
236 # include <set>
237 #endif
238 #ifdef INCLUDE_VECTOR
239 # include <vector>
240 #endif
241 # include <cstring>
242 # include <new>
243 # include <utility>
244 #endif
245
246 /* Some of glibc's string inlines cause warnings. Plus we'd rather
247 rely on (and therefore test) GCC's string builtins. */
248 #define __NO_STRING_INLINES
249
250 #ifdef STRING_WITH_STRINGS
251 # include <string.h>
252 # include <strings.h>
253 #else
254 # ifdef HAVE_STRING_H
255 # include <string.h>
256 # else
257 # ifdef HAVE_STRINGS_H
258 # include <strings.h>
259 # endif
260 # endif
261 #endif
262
263 #ifdef HAVE_STDLIB_H
264 # include <stdlib.h>
265 #endif
266
267 /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
268 that it is processed before we poison "malloc"; otherwise, if a source
269 file uses a standard library header that includes <cstdlib>, we will get
270 an error about 'using std::malloc'. */
271 #ifdef __cplusplus
272 #include <cstdlib>
273 #endif
274
275 /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
276 #undef vec_free
277
278 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
279 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
280 or 0 and 1 if those macros are not defined. */
281 #ifndef SUCCESS_EXIT_CODE
282 # ifdef EXIT_SUCCESS
283 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
284 # else
285 # define SUCCESS_EXIT_CODE 0
286 # endif
287 #endif
288
289 #ifndef FATAL_EXIT_CODE
290 # ifdef EXIT_FAILURE
291 # define FATAL_EXIT_CODE EXIT_FAILURE
292 # else
293 # define FATAL_EXIT_CODE 1
294 # endif
295 #endif
296
297 #define ICE_EXIT_CODE 4
298
299 #ifdef HAVE_UNISTD_H
300 # include <unistd.h>
301 #endif
302
303 #ifdef HAVE_SYS_PARAM_H
304 # include <sys/param.h>
305 /* We use these identifiers later and they appear in some vendor param.h's. */
306 # undef PREFETCH
307 # undef m_slot
308 #endif
309
310 #if HAVE_LIMITS_H
311 # include <limits.h>
312 #endif
313
314 /* A macro to determine whether a VALUE lies inclusively within a
315 certain range without evaluating the VALUE more than once. This
316 macro won't warn if the VALUE is unsigned and the LOWER bound is
317 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
318 bound *is* evaluated twice, and LOWER must not be greater than
319 UPPER. However the bounds themselves can be either positive or
320 negative. */
321 #define IN_RANGE(VALUE, LOWER, UPPER) \
322 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
323 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
324
325 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
326 macros defined with these cannot be used in #if. */
327
328 /* The extra casts work around common compiler bugs. */
329 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
330 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
331 It is necessary at least when t == time_t. */
332 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
333 ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
334 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
335
336 /* Use that infrastructure to provide a few constants. */
337 #ifndef UCHAR_MAX
338 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
339 #endif
340
341 #ifdef TIME_WITH_SYS_TIME
342 # include <sys/time.h>
343 # include <time.h>
344 #else
345 # if HAVE_SYS_TIME_H
346 # include <sys/time.h>
347 # else
348 # ifdef HAVE_TIME_H
349 # include <time.h>
350 # endif
351 # endif
352 #endif
353
354 #ifdef HAVE_FCNTL_H
355 # include <fcntl.h>
356 #else
357 # ifdef HAVE_SYS_FILE_H
358 # include <sys/file.h>
359 # endif
360 #endif
361
362 #ifndef SEEK_SET
363 # define SEEK_SET 0
364 # define SEEK_CUR 1
365 # define SEEK_END 2
366 #endif
367 #ifndef F_OK
368 # define F_OK 0
369 # define X_OK 1
370 # define W_OK 2
371 # define R_OK 4
372 #endif
373 #ifndef O_RDONLY
374 # define O_RDONLY 0
375 #endif
376 #ifndef O_WRONLY
377 # define O_WRONLY 1
378 #endif
379 #ifndef O_BINARY
380 # define O_BINARY 0
381 #endif
382
383 /* Some systems define these in, e.g., param.h. We undefine these names
384 here to avoid the warnings. We prefer to use our definitions since we
385 know they are correct. */
386
387 #undef MIN
388 #undef MAX
389 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
390 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
391
392 /* Returns the least number N such that N * Y >= X. */
393 #define CEIL(x,y) (((x) + (y) - 1) / (y))
394
395 /* This macro rounds x up to the y boundary. */
396 #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
397
398 /* This macro rounds x down to the y boundary. */
399 #define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
400
401 #ifdef HAVE_SYS_WAIT_H
402 #include <sys/wait.h>
403 #endif
404
405 #ifndef WIFSIGNALED
406 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
407 #endif
408 #ifndef WTERMSIG
409 #define WTERMSIG(S) ((S) & 0x7f)
410 #endif
411 #ifndef WIFEXITED
412 #define WIFEXITED(S) (((S) & 0xff) == 0)
413 #endif
414 #ifndef WEXITSTATUS
415 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
416 #endif
417 #ifndef WSTOPSIG
418 #define WSTOPSIG WEXITSTATUS
419 #endif
420 #ifndef WCOREDUMP
421 #define WCOREDUMP(S) ((S) & WCOREFLG)
422 #endif
423 #ifndef WCOREFLG
424 #define WCOREFLG 0200
425 #endif
426
427 #include <signal.h>
428 #if !defined (SIGCHLD) && defined (SIGCLD)
429 # define SIGCHLD SIGCLD
430 #endif
431
432 #ifdef HAVE_SYS_MMAN_H
433 # include <sys/mman.h>
434 #endif
435
436 #ifndef MAP_FAILED
437 # define MAP_FAILED ((void *)-1)
438 #endif
439
440 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
441 # define MAP_ANONYMOUS MAP_ANON
442 #endif
443
444 #ifdef HAVE_SYS_RESOURCE_H
445 # include <sys/resource.h>
446 #endif
447
448 #ifdef HAVE_SYS_TIMES_H
449 # include <sys/times.h>
450 #endif
451
452 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
453 are defined to 0 then we must provide the relevant declaration
454 here. These checks will be in the undefined state while configure
455 is running so be careful to test "defined (HAVE_DECL_*)". */
456
457 #ifdef __cplusplus
458 extern "C" {
459 #endif
460
461 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
462 extern double atof (const char *);
463 #endif
464
465 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
466 extern long atol (const char *);
467 #endif
468
469 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
470 extern void free (void *);
471 #endif
472
473 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
474 extern char *getcwd (char *, size_t);
475 #endif
476
477 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
478 extern char *getenv (const char *);
479 #endif
480
481 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
482 extern int getopt (int, char * const *, const char *);
483 #endif
484
485 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
486 extern int getpagesize (void);
487 #endif
488
489 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
490 extern char *getwd (char *);
491 #endif
492
493 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
494 extern void *sbrk (int);
495 #endif
496
497 #if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
498 int setenv(const char *, const char *, int);
499 #endif
500
501 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
502 extern char *strstr (const char *, const char *);
503 #endif
504
505 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
506 extern char *stpcpy (char *, const char *);
507 #endif
508
509 #if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
510 int unsetenv(const char *);
511 #endif
512
513 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
514 extern void *malloc (size_t);
515 #endif
516
517 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
518 extern void *calloc (size_t, size_t);
519 #endif
520
521 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
522 extern void *realloc (void *, size_t);
523 #endif
524
525 #ifdef __cplusplus
526 }
527 #endif
528
529 #ifdef HAVE_STDINT_H
530 #include <stdint.h>
531 #endif
532
533 #ifdef HAVE_INTTYPES_H
534 #include <inttypes.h>
535 #endif
536
537 #ifndef SIZE_MAX
538 # define SIZE_MAX INTTYPE_MAXIMUM (size_t)
539 #endif
540
541 #ifdef __cplusplus
542 extern "C" {
543 #endif
544
545 /* If the system doesn't provide strsignal, we get it defined in
546 libiberty but no declaration is supplied. */
547 #if !defined (HAVE_STRSIGNAL) \
548 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
549 # ifndef strsignal
550 extern const char *strsignal (int);
551 # endif
552 #endif
553
554 #ifdef HAVE_GETRLIMIT
555 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
556 # ifndef getrlimit
557 struct rlimit;
558 extern int getrlimit (int, struct rlimit *);
559 # endif
560 # endif
561 #endif
562
563 #ifdef HAVE_SETRLIMIT
564 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
565 # ifndef setrlimit
566 struct rlimit;
567 extern int setrlimit (int, const struct rlimit *);
568 # endif
569 # endif
570 #endif
571
572 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
573 extern void abort (void);
574 #endif
575
576 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
577 extern int snprintf (char *, size_t, const char *, ...);
578 #endif
579
580 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
581 extern int vsnprintf (char *, size_t, const char *, va_list);
582 #endif
583
584 #ifdef __cplusplus
585 }
586 #endif
587
588 /* 1 if we have C99 designated initializers. */
589 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
590 #ifdef __cplusplus
591 #define HAVE_DESIGNATED_INITIALIZERS 0
592 #else
593 #define HAVE_DESIGNATED_INITIALIZERS \
594 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
595 #endif
596 #endif
597
598 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
599 #ifdef __cplusplus
600 #define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
601 #else
602 #define HAVE_DESIGNATED_UNION_INITIALIZERS \
603 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
604 #endif
605 #endif
606
607 #if HAVE_SYS_STAT_H
608 # include <sys/stat.h>
609 #endif
610
611 /* Test if something is a normal file. */
612 #ifndef S_ISREG
613 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
614 #endif
615
616 /* Test if something is a directory. */
617 #ifndef S_ISDIR
618 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
619 #endif
620
621 /* Test if something is a character special file. */
622 #ifndef S_ISCHR
623 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
624 #endif
625
626 /* Test if something is a block special file. */
627 #ifndef S_ISBLK
628 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
629 #endif
630
631 /* Test if something is a socket. */
632 #ifndef S_ISSOCK
633 # ifdef S_IFSOCK
634 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
635 # else
636 # define S_ISSOCK(m) 0
637 # endif
638 #endif
639
640 /* Test if something is a FIFO. */
641 #ifndef S_ISFIFO
642 # ifdef S_IFIFO
643 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
644 # else
645 # define S_ISFIFO(m) 0
646 # endif
647 #endif
648
649 /* Define well known filenos if the system does not define them. */
650 #ifndef STDIN_FILENO
651 # define STDIN_FILENO 0
652 #endif
653 #ifndef STDOUT_FILENO
654 # define STDOUT_FILENO 1
655 #endif
656 #ifndef STDERR_FILENO
657 # define STDERR_FILENO 2
658 #endif
659
660 /* Some systems have mkdir that takes a single argument. */
661 #ifdef MKDIR_TAKES_ONE_ARG
662 # define mkdir(a,b) mkdir (a)
663 #endif
664
665 #ifndef HAVE_KILL
666 # define kill(p,s) raise (s)
667 #endif
668
669 /* Provide a way to print an address via printf. */
670 #ifndef HOST_PTR_PRINTF
671 #define HOST_PTR_PRINTF "%p"
672 #endif /* ! HOST_PTR_PRINTF */
673
674 /* By default, colon separates directories in a path. */
675 #ifndef PATH_SEPARATOR
676 #define PATH_SEPARATOR ':'
677 #endif
678
679 /* Filename handling macros. */
680 #include "filenames.h"
681
682 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
683 #ifndef DIR_SEPARATOR
684 # define DIR_SEPARATOR '/'
685 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
686 # define DIR_SEPARATOR_2 '\\'
687 # endif
688 #endif
689
690 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
691 /* If plugin support is enabled, we could use libdl. */
692 #include <dlfcn.h>
693 #endif
694
695 /* Do not introduce a gmp.h dependency on the build system. */
696 #ifndef GENERATOR_FILE
697 #include <gmp.h>
698 #endif
699
700 /* Get libiberty declarations. */
701 #include "libiberty.h"
702
703 #undef FFS /* Some systems predefine this symbol; don't let it interfere. */
704 #undef FLOAT /* Likewise. */
705 #undef ABS /* Likewise. */
706 #undef PC /* Likewise. */
707
708 /* Provide a default for the HOST_BIT_BUCKET.
709 This suffices for POSIX-like hosts. */
710
711 #ifndef HOST_BIT_BUCKET
712 #define HOST_BIT_BUCKET "/dev/null"
713 #endif
714
715 #ifndef offsetof
716 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
717 #endif
718
719 /* Various error reporting routines want to use __FUNCTION__. */
720 #if (GCC_VERSION < 2007)
721 #ifndef __FUNCTION__
722 #define __FUNCTION__ "?"
723 #endif /* ! __FUNCTION__ */
724 #endif
725
726 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
727 the most likely value of A is B. This feature was added at some point
728 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
729 #if (GCC_VERSION < 3000)
730 #define __builtin_expect(a, b) (a)
731 #endif
732
733 /* Some of the headers included by <memory> can use "abort" within a
734 namespace, e.g. "_VSTD::abort();", which fails after we use the
735 preprocessor to redefine "abort" as "fancy_abort" below.
736 Given that unique-ptr.h can use "free", we need to do this after "free"
737 is declared but before "abort" is overridden. */
738
739 #ifdef INCLUDE_UNIQUE_PTR
740 # include "unique-ptr.h"
741 #endif
742
743 #ifdef INCLUDE_MALLOC_H
744 #ifdef HAVE_MALLINFO
745 #include <malloc.h>
746 #endif
747 #endif
748
749 /* Redefine abort to report an internal error w/o coredump, and
750 reporting the location of the error in the source file. */
751 extern void fancy_abort (const char *, int, const char *)
752 ATTRIBUTE_NORETURN ATTRIBUTE_COLD;
753 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
754
755 /* Use gcc_assert(EXPR) to test invariants. */
756 #if ENABLE_ASSERT_CHECKING
757 #define gcc_assert(EXPR) \
758 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
759 #elif (GCC_VERSION >= 4005)
760 #define gcc_assert(EXPR) \
761 ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
762 #else
763 /* Include EXPR, so that unused variable warnings do not occur. */
764 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
765 #endif
766
767 #if CHECKING_P
768 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
769 #else
770 /* N.B.: in release build EXPR is not evaluated. */
771 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
772 #endif
773
774 #if GCC_VERSION >= 4000
775 #define ALWAYS_INLINE inline __attribute__ ((always_inline))
776 #else
777 #define ALWAYS_INLINE inline
778 #endif
779
780 /* Use gcc_unreachable() to mark unreachable locations (like an
781 unreachable default case of a switch. Do not use gcc_assert(0). */
782 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
783 #define gcc_unreachable() __builtin_unreachable ()
784 #else
785 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
786 #endif
787
788 #if GCC_VERSION >= 7000 && defined(__has_attribute)
789 # if __has_attribute(fallthrough)
790 # define gcc_fallthrough() __attribute__((fallthrough))
791 # else
792 # define gcc_fallthrough()
793 # endif
794 #else
795 # define gcc_fallthrough()
796 #endif
797
798 #if GCC_VERSION >= 3001
799 #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
800 #else
801 #define STATIC_CONSTANT_P(X) (false && (X))
802 #endif
803
804 /* static_assert (COND, MESSAGE) is available in C++11 onwards. */
805 #if __cplusplus >= 201103L
806 #define STATIC_ASSERT(X) \
807 static_assert ((X), #X)
808 #else
809 #define STATIC_ASSERT(X) \
810 typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
811 #endif
812
813 /* Provide a fake boolean type. We make no attempt to use the
814 C99 _Bool, as it may not be available in the bootstrap compiler,
815 and even if it is, it is liable to be buggy.
816 This must be after all inclusion of system headers, as some of
817 them will mess us up. */
818
819 #undef TRUE
820 #undef FALSE
821
822 #ifdef __cplusplus
823 /* Obsolete. */
824 # define TRUE true
825 # define FALSE false
826 #else /* !__cplusplus */
827 # undef bool
828 # undef true
829 # undef false
830
831 # define bool unsigned char
832 # define true 1
833 # define false 0
834
835 /* Obsolete. */
836 # define TRUE true
837 # define FALSE false
838 #endif /* !__cplusplus */
839
840 /* Some compilers do not allow the use of unsigned char in bitfields. */
841 #define BOOL_BITFIELD unsigned int
842
843 /* GCC older than 4.4 have broken C++ value initialization handling, see
844 PR11309, PR30111, PR33916, PR82939 and PR84405 for more details. */
845 #if GCC_VERSION > 0 && GCC_VERSION < 4004 && !defined(__clang__)
846 # define BROKEN_VALUE_INITIALIZATION
847 #endif
848
849 /* As the last action in this file, we poison the identifiers that
850 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
851 preprocessor won't trip on poisoned identifiers that arrive from
852 the expansion of macros. E.g. #define strrchr rindex, won't error
853 if rindex is poisoned after this directive is issued and later on
854 strrchr is called.
855
856 Note: We define bypass macros for the few cases where we really
857 want to use the libc memory allocation routines. Otherwise we
858 insist you use the "x" versions from libiberty. */
859
860 #define really_call_malloc malloc
861 #define really_call_calloc calloc
862 #define really_call_realloc realloc
863
864 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
865 /* Flex and bison use malloc and realloc. Yuk. Note that this means
866 really_call_* cannot be used in a .l or .y file. */
867 #define malloc xmalloc
868 #define realloc xrealloc
869 #endif
870
871 #if (GCC_VERSION >= 3000)
872
873 /* Note autoconf checks for prototype declarations and includes
874 system.h while doing so. Only poison these tokens if actually
875 compiling gcc, so that the autoconf declaration tests for malloc
876 etc don't spuriously fail. */
877 #ifdef IN_GCC
878
879 #ifndef USES_ISL
880 #undef calloc
881 #undef strdup
882 #undef strndup
883 #pragma GCC poison calloc strdup strndup
884 #endif
885
886 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
887 #undef malloc
888 #undef realloc
889 #pragma GCC poison malloc realloc
890 #endif
891
892 /* The %m format should be used when GCC's main diagnostic functions
893 supporting %m are available, and xstrerror from libiberty
894 otherwise. */
895 #undef strerror
896 #pragma GCC poison strerror
897
898 /* loc_t is defined on some systems and too inviting for some
899 programmers to avoid. */
900 #undef loc_t
901 #pragma GCC poison loc_t
902
903 /* Old target macros that have moved to the target hooks structure. */
904 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
905 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
906 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
907 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
908 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
909 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
910 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
911 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
912 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
913 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
914 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
915 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
916 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
917 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
918 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
919 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
920 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
921 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
922 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
923 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
924 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
925 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
926 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
927 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
928 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
929 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
930 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
931 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
932 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
933 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
934 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
935 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
936 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
937 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
938 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
939 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
940 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
941 LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
942 CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
943 STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD \
944 HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK \
945 MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS \
946 HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE \
947 SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS \
948 TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT \
949 STARTING_FRAME_OFFSET
950
951 /* Target macros only used for code built for the target, that have
952 moved to libgcc-tm.h or have never been present elsewhere. */
953 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
954 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
955 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
956
957 /* Other obsolete target macros, or macros that used to be in target
958 headers and were not used, and may be obsolete or may never have
959 been used. */
960 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
961 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
962 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
963 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
964 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
965 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
966 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
967 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
968 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
969 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
970 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
971 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
972 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
973 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
974 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
975 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
976 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
977 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
978 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
979 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
980 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
981 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
982 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
983 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
984 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
985 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
986 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
987 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
988 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
989 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
990 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
991 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
992 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
993 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
994 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
995 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
996 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
997 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
998 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
999 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
1000 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
1001 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
1002 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
1003 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
1004 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
1005 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
1006 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
1007 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
1008 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
1009 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
1010 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
1011 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
1012 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
1013 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
1014 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
1015 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
1016 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
1017 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
1018 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
1019 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
1020 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
1021 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
1022 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \
1023 DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \
1024 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
1025 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
1026 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
1027 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
1028 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
1029 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
1030 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
1031 ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
1032 REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
1033 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
1034 REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
1035 EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
1036 EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
1037 CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
1038 ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
1039 LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \
1040 EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \
1041 JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO \
1042 SDB_DEBUG NO_IMPLICIT_EXTERN_C
1043
1044 /* Hooks that are no longer used. */
1045 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
1046 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
1047 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
1048 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
1049 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
1050 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
1051 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
1052 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1053 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
1054 TARGET_IRA_COVER_CLASSES TARGET_HELP \
1055 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
1056 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
1057 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
1058 TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
1059 EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
1060 TARGET_INVALID_RETURN_TYPE
1061
1062 /* Arrays that were deleted in favor of a functional interface. */
1063 #pragma GCC poison built_in_decls implicit_built_in_decls
1064
1065 /* Hooks into libgcc2. */
1066 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
1067 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
1068
1069 /* Miscellaneous macros that are no longer used. */
1070 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
1071
1072 /* Libiberty macros that are no longer used in GCC. */
1073 #undef ANSI_PROTOTYPES
1074 #undef PTR_CONST
1075 #undef LONG_DOUBLE
1076 #undef VPARAMS
1077 #undef VA_OPEN
1078 #undef VA_FIXEDARG
1079 #undef VA_CLOSE
1080 #undef VA_START
1081 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
1082 VA_FIXEDARG VA_CLOSE VA_START
1083 #endif /* IN_GCC */
1084
1085 /* Front ends should never have to include middle-end headers. Enforce
1086 this by poisoning the header double-include protection defines. */
1087 #ifdef IN_GCC_FRONTEND
1088 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
1089 #endif
1090
1091 /* Note: not all uses of the `index' token (e.g. variable names and
1092 structure members) have been eliminated. */
1093 #undef bcopy
1094 #undef bzero
1095 #undef bcmp
1096 #undef rindex
1097 #pragma GCC poison bcopy bzero bcmp rindex
1098
1099 /* Poison ENABLE_CHECKING macro that should be replaced with
1100 'if (flag_checking)', or with CHECKING_P macro. */
1101 #pragma GCC poison ENABLE_CHECKING
1102
1103 #endif /* GCC >= 3.0 */
1104
1105 /* This macro allows casting away const-ness to pass -Wcast-qual
1106 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
1107 only be used in certain specific cases. One valid case is where
1108 the C standard definitions or prototypes force you to. E.g. if you
1109 need to free a const object, or if you pass a const string to
1110 execv, et al. Another valid use would be in an allocation function
1111 that creates const objects that need to be initialized. In some
1112 cases we have non-const functions that return the argument
1113 (e.g. next_nonnote_insn). Rather than create const shadow
1114 functions, we can cast away const-ness in calling these interfaces
1115 if we're careful to verify that the called function does indeed not
1116 modify its argument and the return value is only used in a const
1117 context. (This can be somewhat dangerous as these assumptions can
1118 change after the fact). Beyond these uses, most other cases of
1119 using this macro should be viewed with extreme caution. */
1120
1121 #ifdef __cplusplus
1122 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1123 #else
1124 #if defined(__GNUC__) && GCC_VERSION > 4000
1125 /* GCC 4.0.x has a bug where it may ICE on this expression,
1126 so does GCC 3.4.x (PR17436). */
1127 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
1128 #elif defined(__GNUC__)
1129 static inline char *
helper_const_non_const_cast(const char * p)1130 helper_const_non_const_cast (const char *p)
1131 {
1132 union {
1133 const char *const_c;
1134 char *c;
1135 } val;
1136 val.const_c = p;
1137 return val.c;
1138 }
1139
1140 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1141 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1142 #else
1143 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1144 #endif
1145 #endif
1146 #define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1147 #define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1148 #define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
1149 #define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
1150 #define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
1151 #define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
1152
1153 /* Activate certain diagnostics as warnings (not errors via the
1154 -Werror flag). */
1155 #if GCC_VERSION >= 4003
1156 /* If asserts are disabled, activate -Wuninitialized as a warning (not
1157 an error/-Werror). */
1158 #ifndef ENABLE_ASSERT_CHECKING
1159 #pragma GCC diagnostic warning "-Wuninitialized"
1160 #endif
1161 #endif
1162
1163 #ifdef ENABLE_VALGRIND_ANNOTATIONS
1164 # ifdef HAVE_VALGRIND_MEMCHECK_H
1165 # include <valgrind/memcheck.h>
1166 # elif defined HAVE_MEMCHECK_H
1167 # include <memcheck.h>
1168 # else
1169 # include <valgrind.h>
1170 # endif
1171 /* Compatibility macros to let valgrind 3.1 work. */
1172 # ifndef VALGRIND_MAKE_MEM_NOACCESS
1173 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1174 # endif
1175 # ifndef VALGRIND_MAKE_MEM_DEFINED
1176 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1177 # endif
1178 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1179 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1180 # endif
1181 #else
1182 /* Avoid #ifdef:s when we can help it. */
1183 #define VALGRIND_DISCARD(x)
1184 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1185 #define VALGRIND_FREELIKE_BLOCK(x,y)
1186 #endif
1187
1188 /* Macros to temporarily ignore some warnings. */
1189 #if GCC_VERSION >= 6000
1190 #define GCC_DIAGNOSTIC_STRINGIFY(x) #x
1191 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
1192 _Pragma ("GCC diagnostic push") \
1193 _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
1194 #define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
1195 #else
1196 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
1197 #define GCC_DIAGNOSTIC_POP
1198 #endif
1199
1200 /* In LTO -fwhole-program build we still want to keep the debug functions available
1201 for debugger. Mark them as used to prevent removal. */
1202 #if (GCC_VERSION > 4000)
1203 #define DEBUG_FUNCTION __attribute__ ((__used__))
1204 #define DEBUG_VARIABLE __attribute__ ((__used__))
1205 #else
1206 #define DEBUG_FUNCTION
1207 #define DEBUG_VARIABLE
1208 #endif
1209
1210 /* General macro to extract bit Y of X. */
1211 #define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1212
1213 /* Get definitions of HOST_WIDE_INT. */
1214 #include "hwint.h"
1215
1216 typedef int sort_r_cmp_fn (const void *, const void *, void *);
1217 void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1218 void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1219 void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *));
1220 void gcc_stablesort (void *, size_t, size_t,
1221 int (*)(const void *, const void *));
1222 /* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations
1223 correspond to vec::qsort, and use C qsort internally. */
1224 #define PP_5th(a1, a2, a3, a4, a5, ...) a5
1225 #undef qsort
1226 #define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__)
1227
1228 #define ONE_K 1024
1229 #define ONE_M (ONE_K * ONE_K)
1230
1231 /* Display a number as an integer multiple of either:
1232 - 1024, if said integer is >= to 10 K (in base 2)
1233 - 1024 * 1024, if said integer is >= 10 M in (base 2)
1234 */
1235 #define SIZE_SCALE(x) (((x) < 10 * ONE_K \
1236 ? (x) \
1237 : ((x) < 10 * ONE_M \
1238 ? (x) / ONE_K \
1239 : (x) / ONE_M)))
1240
1241 /* For a given integer, display either:
1242 - the character 'k', if the number is higher than 10 K (in base 2)
1243 but strictly lower than 10 M (in base 2)
1244 - the character 'M' if the number is higher than 10 M (in base2)
1245 - the charcter ' ' if the number is strictly lower than 10 K */
1246 #define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
1247
1248 /* Display an integer amount as multiple of 1K or 1M (in base 2).
1249 Display the correct unit (either k, M, or ' ') after the amount, as
1250 well. */
1251 #define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size)
1252
1253 /* Format string particle for printing a SIZE_AMOUNT with N being the width
1254 of the number. */
1255 #define PRsa(n) "%" #n PRIu64 "%c"
1256
1257 #endif /* ! GCC_SYSTEM_H */
1258