GCC Middle and Back End API Reference
system.h
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1/* Get common system includes and various definitions and declarations based
2 on autoconf macros.
3 Copyright (C) 1998-2024 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 3, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along 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
103extern "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
110extern 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
117extern 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
124extern 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
131extern 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
138extern 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
145extern 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
152extern 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
159extern 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
166extern 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
173extern 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
182extern 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 C++ standard headers before "safe-ctype.h" to avoid GCC
198 poisoning the ctype macros through safe-ctype.h */
199
200#ifdef __cplusplus
201#if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
202# include <algorithm>
203#endif
204#ifdef INCLUDE_LIST
205# include <list>
206#endif
207#ifdef INCLUDE_MAP
208# include <map>
209#endif
210#ifdef INCLUDE_SET
211# include <set>
212#endif
213#ifdef INCLUDE_STRING
214# include <string>
215#endif
216#ifdef INCLUDE_VECTOR
217# include <vector>
218#endif
219#ifdef INCLUDE_ARRAY
220# include <array>
221#endif
222#ifdef INCLUDE_FUNCTIONAL
223# include <functional>
224#endif
225# include <cstring>
226# include <initializer_list>
227# include <new>
228# include <utility>
229# include <type_traits>
230#endif
231
232/* There are an extraordinary number of issues with <ctype.h>.
233 The last straw is that it varies with the locale. Use libiberty's
234 replacement instead. */
235#include "safe-ctype.h"
236
237#include <sys/types.h>
238
239#include <errno.h>
240
241#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
242extern int errno;
243#endif
244
245/* Some of glibc's string inlines cause warnings. Plus we'd rather
246 rely on (and therefore test) GCC's string builtins. */
247#define __NO_STRING_INLINES
248
249#ifdef STRING_WITH_STRINGS
250# include <string.h>
251# include <strings.h>
252#else
253# ifdef HAVE_STRING_H
254# include <string.h>
255# else
256# ifdef HAVE_STRINGS_H
257# include <strings.h>
258# endif
259# endif
260#endif
261
262#ifdef HAVE_STDLIB_H
263# include <stdlib.h>
264#endif
265
266/* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
267 that it is processed before we poison "malloc"; otherwise, if a source
268 file uses a standard library header that includes <cstdlib>, we will get
269 an error about 'using std::malloc'. */
270#ifdef __cplusplus
271#include <cstdlib>
272#endif
273
274/* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
275#undef vec_free
276
277/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
278 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
279 or 0 and 1 if those macros are not defined. */
280#ifndef SUCCESS_EXIT_CODE
281# ifdef EXIT_SUCCESS
282# define SUCCESS_EXIT_CODE EXIT_SUCCESS
283# else
284# define SUCCESS_EXIT_CODE 0
285# endif
286#endif
287
288#ifndef FATAL_EXIT_CODE
289# ifdef EXIT_FAILURE
290# define FATAL_EXIT_CODE EXIT_FAILURE
291# else
292# define FATAL_EXIT_CODE 1
293# endif
294#endif
295
296#define ICE_EXIT_CODE 4
297
298#ifdef HAVE_UNISTD_H
299# include <unistd.h>
300#endif
301
302#ifdef HAVE_SYS_PARAM_H
303# include <sys/param.h>
304/* We use these identifiers later and they appear in some vendor param.h's. */
305# undef PREFETCH
306# undef m_slot
307#endif
308
309#if HAVE_LIMITS_H
310# include <limits.h>
311#endif
312
313/* A macro to determine whether a VALUE lies inclusively within a
314 certain range without evaluating the VALUE more than once. This
315 macro won't warn if the VALUE is unsigned and the LOWER bound is
316 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
317 bound *is* evaluated twice, and LOWER must not be greater than
318 UPPER. However the bounds themselves can be either positive or
319 negative. */
320#define IN_RANGE(VALUE, LOWER, UPPER) \
321 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
322 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
323
324/* Infrastructure for defining missing _MAX and _MIN macros. Note that
325 macros defined with these cannot be used in #if. */
326
327/* The extra casts work around common compiler bugs. */
328#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
329/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
330 It is necessary at least when t == time_t. */
331#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
332 ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
333#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
334
335/* Use that infrastructure to provide a few constants. */
336#ifndef UCHAR_MAX
337# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
338#endif
339
340#ifdef TIME_WITH_SYS_TIME
341# include <sys/time.h>
342# include <time.h>
343#else
344# if HAVE_SYS_TIME_H
345# include <sys/time.h>
346# else
347# ifdef HAVE_TIME_H
348# include <time.h>
349# endif
350# endif
351#endif
352
353#ifdef HAVE_FCNTL_H
354# include <fcntl.h>
355#else
356# ifdef HAVE_SYS_FILE_H
357# include <sys/file.h>
358# endif
359#endif
360
361#ifdef HAVE_SYS_LOCKING_H
362# include <sys/locking.h>
363#endif
364
365#ifndef SEEK_SET
366# define SEEK_SET 0
367# define SEEK_CUR 1
368# define SEEK_END 2
369#endif
370#ifndef F_OK
371# define F_OK 0
372# define X_OK 1
373# define W_OK 2
374# define R_OK 4
375#endif
376#ifndef O_RDONLY
377# define O_RDONLY 0
378#endif
379#ifndef O_WRONLY
380# define O_WRONLY 1
381#endif
382#ifndef O_BINARY
383# define O_BINARY 0
384#endif
385
386/* Some systems define these in, e.g., param.h. We undefine these names
387 here to avoid the warnings. We prefer to use our definitions since we
388 know they are correct. */
389
390#undef MIN
391#undef MAX
392#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
393#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
394
395/* Returns the least number N such that N * Y >= X. */
396#define CEIL(x,y) (((x) + (y) - 1) / (y))
397
398/* This macro rounds x up to the y boundary. */
399#define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
400
401/* This macro rounds x down to the y boundary. */
402#define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
403
404#ifdef HAVE_SYS_WAIT_H
405#include <sys/wait.h>
406#endif
407
408#ifndef WIFSIGNALED
409#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
410#endif
411#ifndef WTERMSIG
412#define WTERMSIG(S) ((S) & 0x7f)
413#endif
414#ifndef WIFEXITED
415#define WIFEXITED(S) (((S) & 0xff) == 0)
416#endif
417#ifndef WEXITSTATUS
418#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
419#endif
420#ifndef WSTOPSIG
421#define WSTOPSIG WEXITSTATUS
422#endif
423#ifndef WCOREDUMP
424#define WCOREDUMP(S) ((S) & WCOREFLG)
425#endif
426#ifndef WCOREFLG
427#define WCOREFLG 0200
428#endif
429
430#include <signal.h>
431#if !defined (SIGCHLD) && defined (SIGCLD)
432# define SIGCHLD SIGCLD
433#endif
434
435#ifdef HAVE_SYS_MMAN_H
436# include <sys/mman.h>
437#endif
438
439#ifndef MAP_FAILED
440# define MAP_FAILED ((void *)-1)
441#endif
442
443#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
444# define MAP_ANONYMOUS MAP_ANON
445#endif
446
447#ifdef HAVE_SYS_RESOURCE_H
448# include <sys/resource.h>
449#endif
450
451#ifdef HAVE_SYS_TIMES_H
452# include <sys/times.h>
453#endif
454
455/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
456 are defined to 0 then we must provide the relevant declaration
457 here. These checks will be in the undefined state while configure
458 is running so be careful to test "defined (HAVE_DECL_*)". */
459
460#ifdef __cplusplus
461extern "C" {
462#endif
463
464#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
465extern double atof (const char *);
466#endif
467
468#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
469extern long atol (const char *);
470#endif
471
472#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
473extern void free (void *);
474#endif
475
476#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
477extern char *getcwd (char *, size_t);
478#endif
479
480#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
481extern char *getenv (const char *);
482#endif
483
484#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
485extern int getopt (int, char * const *, const char *);
486#endif
487
488#if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
489extern int getpagesize (void);
490#endif
491
492#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
493extern char *getwd (char *);
494#endif
495
496#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
497extern void *sbrk (int);
498#endif
499
500#if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
501int setenv(const char *, const char *, int);
502#endif
503
504#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
505extern char *strstr (const char *, const char *);
506#endif
507
508#if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
509extern char *stpcpy (char *, const char *);
510#endif
511
512#if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
513int unsetenv(const char *);
514#endif
515
516#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
517extern void *malloc (size_t);
518#endif
519
520#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
521extern void *calloc (size_t, size_t);
522#endif
523
524#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
525extern void *realloc (void *, size_t);
526#endif
527
528#ifdef __cplusplus
529}
530#endif
531
532#ifdef HAVE_STDINT_H
533#include <stdint.h>
534#endif
535
536#ifdef HAVE_INTTYPES_H
537#include <inttypes.h>
538#endif
539
540#ifndef SIZE_MAX
541# define SIZE_MAX INTTYPE_MAXIMUM (size_t)
542#endif
543
544#ifdef __cplusplus
545extern "C" {
546#endif
547
548/* If the system doesn't provide strsignal, we get it defined in
549 libiberty but no declaration is supplied. */
550#if !defined (HAVE_STRSIGNAL) \
551 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
552# ifndef strsignal
553extern const char *strsignal (int);
554# endif
555#endif
556
557#ifdef HAVE_GETRLIMIT
558# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
559# ifndef getrlimit
560struct rlimit;
561extern int getrlimit (int, struct rlimit *);
562# endif
563# endif
564#endif
565
566#ifdef HAVE_SETRLIMIT
567# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
568# ifndef setrlimit
569struct rlimit;
570extern int setrlimit (int, const struct rlimit *);
571# endif
572# endif
573#endif
574
575#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
576extern void abort (void);
577#endif
578
579#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
580extern int snprintf (char *, size_t, const char *, ...);
581#endif
582
583#if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
584extern int vsnprintf (char *, size_t, const char *, va_list);
585#endif
586
587#ifdef __cplusplus
588}
589#endif
590
591/* 1 if we have C99 designated initializers. */
592#if !defined(HAVE_DESIGNATED_INITIALIZERS)
593#ifdef __cplusplus
594#define HAVE_DESIGNATED_INITIALIZERS 0
595#else
596#define HAVE_DESIGNATED_INITIALIZERS \
597 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
598#endif
599#endif
600
601#if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
602#ifdef __cplusplus
603#define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
604#else
605#define HAVE_DESIGNATED_UNION_INITIALIZERS \
606 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
607#endif
608#endif
609
610#if HAVE_SYS_STAT_H
611# include <sys/stat.h>
612#endif
613
614/* Test if something is a normal file. */
615#ifndef S_ISREG
616#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
617#endif
618
619/* Test if something is a directory. */
620#ifndef S_ISDIR
621#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
622#endif
623
624/* Test if something is a character special file. */
625#ifndef S_ISCHR
626#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
627#endif
628
629/* Test if something is a block special file. */
630#ifndef S_ISBLK
631#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
632#endif
633
634/* Test if something is a socket. */
635#ifndef S_ISSOCK
636# ifdef S_IFSOCK
637# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
638# else
639# define S_ISSOCK(m) 0
640# endif
641#endif
642
643/* Test if something is a FIFO. */
644#ifndef S_ISFIFO
645# ifdef S_IFIFO
646# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
647# else
648# define S_ISFIFO(m) 0
649# endif
650#endif
651
652/* Define well known filenos if the system does not define them. */
653#ifndef STDIN_FILENO
654# define STDIN_FILENO 0
655#endif
656#ifndef STDOUT_FILENO
657# define STDOUT_FILENO 1
658#endif
659#ifndef STDERR_FILENO
660# define STDERR_FILENO 2
661#endif
662
663/* Some systems have mkdir that takes a single argument. */
664#ifdef MKDIR_TAKES_ONE_ARG
665# define mkdir(a,b) mkdir (a)
666#endif
667
668#ifndef HAVE_KILL
669# define kill(p,s) raise (s)
670#endif
671
672/* Provide a way to print an address via printf. */
673#ifndef HOST_PTR_PRINTF
674#define HOST_PTR_PRINTF "%p"
675#endif /* ! HOST_PTR_PRINTF */
676
677/* By default, colon separates directories in a path. */
678#ifndef PATH_SEPARATOR
679#define PATH_SEPARATOR ':'
680#endif
681
682/* Filename handling macros. */
683#include "filenames.h"
684
685/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
686#ifndef DIR_SEPARATOR
687# define DIR_SEPARATOR '/'
688# ifdef HAVE_DOS_BASED_FILE_SYSTEM
689# define DIR_SEPARATOR_2 '\\'
690# endif
691#endif
692
693#if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
694/* If plugin support is enabled, we could use libdl. */
695#include <dlfcn.h>
696#endif
697
698/* Do not introduce a gmp.h dependency on the build system. */
699#ifndef GENERATOR_FILE
700#include <gmp.h>
701
703{
704public:
707
708 operator mpz_t& () { return m_mpz; }
709 mpz_ptr operator-> () { return m_mpz; }
710
711 auto_mpz (const auto_mpz &) = delete;
712 auto_mpz &operator= (const auto_mpz &) = delete;
713
714#if GCC_VERSION < 4008 || GCC_VERSION >= 5000
715 /* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */
716 friend void mpz_clear (auto_mpz&) = delete;
717 friend void mpz_init (auto_mpz&) = delete;
718#endif
719
720private:
721 mpz_t m_mpz;
722};
723#endif
724
725/* Get libiberty declarations. */
726#include "libiberty.h"
727
728#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
729#undef FLOAT /* Likewise. */
730#undef ABS /* Likewise. */
731#undef PC /* Likewise. */
732
733/* Provide a default for the HOST_BIT_BUCKET.
734 This suffices for POSIX-like hosts. */
735
736#ifndef HOST_BIT_BUCKET
737#define HOST_BIT_BUCKET "/dev/null"
738#endif
739
740#ifndef offsetof
741#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
742#endif
743
744/* Various error reporting routines want to use __FUNCTION__. */
745#if (GCC_VERSION < 2007)
746#ifndef __FUNCTION__
747#define __FUNCTION__ "?"
748#endif /* ! __FUNCTION__ */
749#endif
750
751/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
752 the most likely value of A is B. This feature was added at some point
753 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
754#if (GCC_VERSION < 3000)
755#define __builtin_expect(a, b) (a)
756#endif
757
758#define LIKELY(x) (__builtin_expect ((x), 1))
759#define UNLIKELY(x) (__builtin_expect ((x), 0))
760
761/* Some of the headers included by <memory> can use "abort" within a
762 namespace, e.g. "_VSTD::abort();", which fails after we use the
763 preprocessor to redefine "abort" as "fancy_abort" below. */
764
765#ifdef INCLUDE_MEMORY
766# include <memory>
767#endif
768
769#ifdef INCLUDE_MUTEX
770# include <mutex>
771#endif
772
773#ifdef INCLUDE_SSTREAM
774# include <sstream>
775#endif
776
777#ifdef INCLUDE_MALLOC_H
778#if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
779#include <malloc.h>
780#endif
781#endif
782
783#ifdef INCLUDE_ISL
784#ifdef HAVE_isl
785#include <isl/options.h>
786#include <isl/ctx.h>
787#include <isl/val.h>
788#include <isl/set.h>
789#include <isl/union_set.h>
790#include <isl/map.h>
791#include <isl/union_map.h>
792#include <isl/aff.h>
793#include <isl/constraint.h>
794#include <isl/flow.h>
795#include <isl/ilp.h>
796#include <isl/schedule.h>
797#include <isl/ast_build.h>
798#include <isl/schedule_node.h>
799#include <isl/id.h>
800#include <isl/space.h>
801#endif
802#endif
803
804/* Redefine 'abort' to report an internal error w/o coredump, and
805 reporting the location of the error in the source file.
806 Instead of directly calling 'abort' or 'fancy_abort', GCC code
807 should normally call 'internal_error' with a specific message. */
808extern void fancy_abort (const char *, int, const char *)
809 ATTRIBUTE_NORETURN ATTRIBUTE_COLD;
810#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
811
812/* Use gcc_assert(EXPR) to test invariants. */
813#if ENABLE_ASSERT_CHECKING
814#define gcc_assert(EXPR) \
815 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
816#elif (GCC_VERSION >= 4005)
817#define gcc_assert(EXPR) \
818 ((void)(UNLIKELY (!(EXPR)) ? __builtin_unreachable (), 0 : 0))
819#else
820/* Include EXPR, so that unused variable warnings do not occur. */
821#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
822#endif
823
824#if CHECKING_P
825#define gcc_checking_assert(EXPR) gcc_assert (EXPR)
826#else
827/* N.B.: in release build EXPR is not evaluated. */
828#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
829#endif
830
831#if GCC_VERSION >= 4000
832#define ALWAYS_INLINE inline __attribute__ ((always_inline))
833#else
834#define ALWAYS_INLINE inline
835#endif
836
837#if GCC_VERSION >= 3004
838#define WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
839#else
840#define WARN_UNUSED_RESULT
841#endif
842
843/* Use gcc_unreachable() to mark unreachable locations (like an
844 unreachable default case of a switch. Do not use gcc_assert(0). */
845#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
846#define gcc_unreachable() __builtin_unreachable ()
847#else
848#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
849#endif
850
851#if GCC_VERSION >= 7000 && defined(__has_attribute)
852# if __has_attribute(fallthrough)
853# define gcc_fallthrough() __attribute__((fallthrough))
854# else
855# define gcc_fallthrough()
856# endif
857#else
858# define gcc_fallthrough()
859#endif
860
861#if GCC_VERSION >= 3001
862#define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
863#else
864#define STATIC_CONSTANT_P(X) (false && (X))
865#endif
866
867#ifdef __cplusplus
868#define STATIC_ASSERT(X) \
869 static_assert ((X), #X)
870#else
871#define STATIC_ASSERT(X) \
872 typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
873#endif
874
875/* Provide a fake boolean type. We make no attempt to use the
876 C99 _Bool, as it may not be available in the bootstrap compiler,
877 and even if it is, it is liable to be buggy.
878 This must be after all inclusion of system headers, as some of
879 them will mess us up. */
880
881#undef TRUE
882#undef FALSE
883
884#ifdef __cplusplus
885 /* Obsolete. */
886# define TRUE true
887# define FALSE false
888#else /* !__cplusplus */
889# undef bool
890# undef true
891# undef false
892
893# define bool unsigned char
894# define true 1
895# define false 0
896
897 /* Obsolete. */
898# define TRUE true
899# define FALSE false
900#endif /* !__cplusplus */
901
902/* Some compilers do not allow the use of unsigned char in bitfields. */
903#define BOOL_BITFIELD unsigned int
904
905/* As the last action in this file, we poison the identifiers that
906 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
907 preprocessor won't trip on poisoned identifiers that arrive from
908 the expansion of macros. E.g. #define strrchr rindex, won't error
909 if rindex is poisoned after this directive is issued and later on
910 strrchr is called.
911
912 Note: We define bypass macros for the few cases where we really
913 want to use the libc memory allocation routines. Otherwise we
914 insist you use the "x" versions from libiberty. */
915
916#define really_call_malloc malloc
917#define really_call_calloc calloc
918#define really_call_realloc realloc
919
920#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
921/* Flex and bison use malloc and realloc. Yuk. Note that this means
922 really_call_* cannot be used in a .l or .y file. */
923#define malloc xmalloc
924#define realloc xrealloc
925#endif
926
927#if (GCC_VERSION >= 3000)
928
929/* Note autoconf checks for prototype declarations and includes
930 system.h while doing so. Only poison these tokens if actually
931 compiling gcc, so that the autoconf declaration tests for malloc
932 etc don't spuriously fail. */
933#ifdef IN_GCC
934
935#undef calloc
936#undef strdup
937#undef strndup
938 #pragma GCC poison calloc strdup strndup
939
940#if !defined(FLEX_SCANNER) && !defined(YYBISON)
941#undef malloc
942#undef realloc
943 #pragma GCC poison malloc realloc
944#endif
945
946/* The %m format should be used when GCC's main diagnostic functions
947 supporting %m are available, and xstrerror from libiberty
948 otherwise. */
949#undef strerror
950 #pragma GCC poison strerror
951
952/* loc_t is defined on some systems and too inviting for some
953 programmers to avoid. */
954#undef loc_t
955 #pragma GCC poison loc_t
956
957/* Old target macros that have moved to the target hooks structure. */
958 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
959 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
960 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
961 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
962 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
963 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
964 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
965 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
966 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
967 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
968 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
969 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
970 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
971 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
972 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
973 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
974 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
975 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
976 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
977 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
978 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
979 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
980 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
981 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
982 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
983 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
984 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
985 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
986 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
987 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
988 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
989 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
990 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
991 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
992 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
993 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
994 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
995 LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
996 CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
997 STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD \
998 HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK \
999 MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS \
1000 HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE \
1001 SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS \
1002 TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT \
1003 STARTING_FRAME_OFFSET FLOAT_TYPE_SIZE DOUBLE_TYPE_SIZE \
1004 LONG_DOUBLE_TYPE_SIZE
1005
1006/* Target macros only used for code built for the target, that have
1007 moved to libgcc-tm.h or have never been present elsewhere. */
1008 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
1009 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
1010 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
1011
1012/* Other obsolete target macros, or macros that used to be in target
1013 headers and were not used, and may be obsolete or may never have
1014 been used. */
1015 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
1016 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
1017 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
1018 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
1019 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
1020 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
1021 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
1022 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
1023 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
1024 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
1025 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
1026 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
1027 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
1028 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
1029 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
1030 INSN_CACHE_DEPTH INSN_CACHE_SIZE \
1031 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
1032 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
1033 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
1034 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
1035 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
1036 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
1037 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
1038 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
1039 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
1040 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
1041 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
1042 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
1043 BUILTIN_SETJMP_FRAME_VALUE \
1044 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
1045 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
1046 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
1047 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
1048 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
1049 GDB_INV_REF_REGPARM_STABS_LETTER \
1050 PUT_SDB_SRC_FILE STABS_GCC_MARKER SDB_GENERATE_FAKE \
1051 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
1052 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
1053 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
1054 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
1055 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
1056 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
1057 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
1058 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
1059 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
1060 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
1061 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
1062 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
1063 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
1064 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
1065 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
1066 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
1067 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
1068 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
1069 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
1070 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
1071 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
1072 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
1073 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
1074 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
1075 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES \
1076 RANGE_TEST_NON_SHORT_CIRCUIT \
1077 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
1078 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
1079 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
1080 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
1081 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
1082 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
1083 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
1084 ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
1085 REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
1086 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
1087 REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
1088 EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
1089 EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
1090 CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
1091 ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
1092 LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \
1093 EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \
1094 JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO \
1095 SDB_DEBUG NO_IMPLICIT_EXTERN_C NOTICE_UPDATE_CC \
1096 CC_STATUS_MDEP_INIT CC_STATUS_MDEP CC_STATUS SLOW_SHORT_ACCESS
1097
1098/* Hooks that are no longer used. */
1099 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
1100 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
1101 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
1102 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
1103 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
1104 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
1105 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
1106 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1107 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
1108 TARGET_IRA_COVER_CLASSES TARGET_HELP \
1109 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
1110 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
1111 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
1112 TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
1113 EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
1114 TARGET_INVALID_RETURN_TYPE
1115
1116/* Arrays that were deleted in favor of a functional interface. */
1117 #pragma GCC poison built_in_decls implicit_built_in_decls
1118
1119/* Hooks into libgcc2. */
1120 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
1121 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
1122
1123/* Miscellaneous macros that are no longer used. */
1124 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
1125
1126/* Libiberty macros that are no longer used in GCC. */
1127#undef ANSI_PROTOTYPES
1128#undef PTR_CONST
1129#undef LONG_DOUBLE
1130#undef VPARAMS
1131#undef VA_OPEN
1132#undef VA_FIXEDARG
1133#undef VA_CLOSE
1134#undef VA_START
1135 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
1136 VA_FIXEDARG VA_CLOSE VA_START
1137#endif /* IN_GCC */
1138
1139/* Front ends should never have to include middle-end headers. Enforce
1140 this by poisoning the header double-include protection defines. */
1141#ifdef IN_GCC_FRONTEND
1142#pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
1143#endif
1144
1145/* Note: not all uses of the `index' token (e.g. variable names and
1146 structure members) have been eliminated. */
1147#undef bcopy
1148#undef bzero
1149#undef bcmp
1150#undef rindex
1151 #pragma GCC poison bcopy bzero bcmp rindex
1152
1153/* Poison ENABLE_CHECKING macro that should be replaced with
1154 'if (flag_checking)', or with CHECKING_P macro. */
1155#pragma GCC poison ENABLE_CHECKING
1156
1157#endif /* GCC >= 3.0 */
1158
1159/* This macro allows casting away const-ness to pass -Wcast-qual
1160 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
1161 only be used in certain specific cases. One valid case is where
1162 the C standard definitions or prototypes force you to. E.g. if you
1163 need to free a const object, or if you pass a const string to
1164 execv, et al. Another valid use would be in an allocation function
1165 that creates const objects that need to be initialized. In some
1166 cases we have non-const functions that return the argument
1167 (e.g. next_nonnote_insn). Rather than create const shadow
1168 functions, we can cast away const-ness in calling these interfaces
1169 if we're careful to verify that the called function does indeed not
1170 modify its argument and the return value is only used in a const
1171 context. (This can be somewhat dangerous as these assumptions can
1172 change after the fact). Beyond these uses, most other cases of
1173 using this macro should be viewed with extreme caution. */
1174
1175#ifdef __cplusplus
1176#define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1177#else
1178#if defined(__GNUC__) && GCC_VERSION > 4000
1179/* GCC 4.0.x has a bug where it may ICE on this expression,
1180 so does GCC 3.4.x (PR17436). */
1181#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
1182#elif defined(__GNUC__)
1183inline char *
1184helper_const_non_const_cast (const char *p)
1185{
1186 union {
1187 const char *const_c;
1188 char *c;
1189 } val;
1190 val.const_c = p;
1191 return val.c;
1192}
1193
1194#define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1195 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1196#else
1197#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1198#endif
1199#endif
1200#define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1201#define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1202#define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
1203#define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
1204#define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
1205#define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
1206
1207/* Activate certain diagnostics as warnings (not errors via the
1208 -Werror flag). */
1209#if GCC_VERSION >= 4003
1210/* If asserts are disabled, activate -Wuninitialized as a warning (not
1211 an error/-Werror). */
1212#ifndef ENABLE_ASSERT_CHECKING
1213#pragma GCC diagnostic warning "-Wuninitialized"
1214#endif
1215#endif
1216
1217#ifdef ENABLE_VALGRIND_ANNOTATIONS
1218#include <valgrind/memcheck.h>
1219#else
1220/* VALGRIND_DISCARD unregisters the given block handle,
1221 but our code misuses it for discarding annotations. */
1222#define VALGRIND_DISCARD(x)
1223#endif
1224
1225/* Macros to temporarily ignore some warnings. */
1226#if GCC_VERSION >= 6000
1227#define GCC_DIAGNOSTIC_STRINGIFY(x) #x
1228#define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
1229 _Pragma ("GCC diagnostic push") \
1230 _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
1231#define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
1232#else
1233#define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
1234#define GCC_DIAGNOSTIC_POP
1235#endif
1236
1237/* In LTO -fwhole-program build we still want to keep the debug functions available
1238 for debugger. Mark them as used to prevent removal. */
1239#if (GCC_VERSION > 4000)
1240#define DEBUG_FUNCTION __attribute__ ((__used__))
1241#define DEBUG_VARIABLE __attribute__ ((__used__))
1242#else
1243#define DEBUG_FUNCTION
1244#define DEBUG_VARIABLE
1245#endif
1246
1247/* General macro to extract bit Y of X. */
1248#define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1249
1250/* Get definitions of HOST_WIDE_INT. */
1251#include "hwint.h"
1252
1253typedef int sort_r_cmp_fn (const void *, const void *, void *);
1254void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1255void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *);
1256void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *));
1257void gcc_stablesort (void *, size_t, size_t,
1258 int (*)(const void *, const void *));
1259void gcc_stablesort_r (void *, size_t, size_t, sort_r_cmp_fn *, void *data);
1260/* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations
1261 correspond to vec::qsort, and use C qsort internally. */
1262#define PP_5th(a1, a2, a3, a4, a5, ...) a5
1263#undef qsort
1264#define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__)
1265
1266#define ONE_K 1024
1267#define ONE_M (ONE_K * ONE_K)
1268#define ONE_G (ONE_K * ONE_M)
1269
1270/* Display a number as an integer multiple of either:
1271 - 1024, if said integer is >= to 10 K (in base 2)
1272 - 1024 * 1024, if said integer is >= 10 M in (base 2)
1273 */
1274#define SIZE_SCALE(x) (((x) < 10 * ONE_K \
1275 ? (x) \
1276 : ((x) < 10 * ONE_M \
1277 ? (x) / ONE_K \
1278 : (x) / ONE_M)))
1279
1280/* For a given integer, display either:
1281 - the character 'k', if the number is higher than 10 K (in base 2)
1282 but strictly lower than 10 M (in base 2)
1283 - the character 'M' if the number is higher than 10 M (in base2)
1284 - the charcter ' ' if the number is strictly lower than 10 K */
1285#define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
1286
1287/* Display an integer amount as multiple of 1K or 1M (in base 2).
1288 Display the correct unit (either k, M, or ' ') after the amount, as
1289 well. */
1290#define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size)
1291
1292/* Format string particle for printing a SIZE_AMOUNT with N being the width
1293 of the number. */
1294#define PRsa(n) "%" #n PRIu64 "%c"
1295
1296/* System headers may define NULL to be an integer (e.g. 0L), which cannot be
1297 used safely in certain contexts (e.g. as sentinels). Redefine NULL to
1298 nullptr in order to make it safer. Note that this might confuse system
1299 headers, however, by convention they must not be included after this point.
1300*/
1301#ifdef __cplusplus
1302#undef NULL
1303#define NULL nullptr
1304#endif
1305
1306/* Workaround clang on PowerPC which has vec_step as reserved keyword
1307 rather than function-like macro defined in <altivec.h>. See PR114369. */
1308#if defined(__clang__) && defined(__powerpc__)
1309#define vec_step vec_step_
1310#endif
1311
1312/* Return true if STR string starts with PREFIX. */
1313
1314inline bool
1315startswith (const char *str, const char *prefix)
1316{
1317 return strncmp (str, prefix, strlen (prefix)) == 0;
1318}
1319
1320/* Return true if STR string ends with SUFFIX. */
1321
1322inline bool
1323endswith (const char *str, const char *suffix)
1324{
1325 size_t str_len = strlen (str);
1326 size_t suffix_len = strlen (suffix);
1327 if (str_len < suffix_len)
1328 return false;
1329
1330 return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0;
1331}
1332
1333#endif /* ! GCC_SYSTEM_H */
Definition system.h:703
auto_mpz(const auto_mpz &)=delete
~auto_mpz()
Definition system.h:706
auto_mpz & operator=(const auto_mpz &)=delete
friend void mpz_clear(auto_mpz &)=delete
mpz_ptr operator->()
Definition system.h:709
auto_mpz()
Definition system.h:705
friend void mpz_init(auto_mpz &)=delete
mpz_t m_mpz
Definition system.h:721
Definition genoutput.cc:147
void ATTRIBUTE_NORETURN
Definition diagnostic-core.h:72
#define realloc
Definition gengtype-lex.l:33
#define malloc
Definition gengtype-lex.l:32
free(str)
bool endswith(const char *str, const char *suffix)
Definition system.h:1323
void gcc_stablesort_r(void *, size_t, size_t, sort_r_cmp_fn *, void *data)
Definition sort.cc:309
void gcc_sort_r(void *, size_t, size_t, sort_r_cmp_fn *, void *)
Definition sort.cc:279
void fancy_abort(const char *, int, const char *) ATTRIBUTE_NORETURN ATTRIBUTE_COLD
Definition diagnostic.cc:1691
void gcc_qsort(void *, size_t, size_t, int(*)(const void *, const void *))
void qsort_chk(void *, size_t, size_t, sort_r_cmp_fn *, void *)
int sort_r_cmp_fn(const void *, const void *, void *)
Definition system.h:1253
const char * strsignal(int)
void gcc_stablesort(void *, size_t, size_t, int(*)(const void *, const void *))
bool startswith(const char *str, const char *prefix)
Definition system.h:1315
#define abort()
Definition system.h:810
int errno