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c5c76735
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1/* Get common system includes and various definitions and declarations based
2 on autoconf macros.
23a5b65a 3 Copyright (C) 1998-2014 Free Software Foundation, Inc.
aca69483 4
1322177d 5This file is part of GCC.
1b0c6de6 6
1322177d
LB
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
9dcd6f09 9Software Foundation; either version 3, or (at your option) any later
1322177d 10version.
1b0c6de6 11
1322177d
LB
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.
1b0c6de6
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16
17You should have received a copy of the GNU General Public License
9dcd6f09
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18along with GCC; see the file COPYING3. If not see
19<http://www.gnu.org/licenses/>. */
aca69483 20
c5c76735 21
88657302
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22#ifndef GCC_SYSTEM_H
23#define GCC_SYSTEM_H
aca69483 24
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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
2a0621b9 31/* We must include stdarg.h before stdio.h. */
789f983a 32#include <stdarg.h>
789f983a 33
6f81b1ad
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34#ifndef va_copy
35# ifdef __va_copy
c3284718 36# define va_copy(d,s) __va_copy (d, s)
6f81b1ad
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37# else
38# define va_copy(d,s) ((d) = (s))
39# endif
40#endif
41
d6edb99e
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42#ifdef HAVE_STDDEF_H
43# include <stddef.h>
44#endif
45
aca69483 46#include <stdio.h>
51db713f
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47
48/* Define a generic NULL if one hasn't already been defined. */
49#ifndef NULL
50#define NULL 0
51#endif
52
042630ad 53/* Use the unlocked open routines from libiberty. */
75291c57
OH
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
c3284718
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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)
042630ad 65
54953b66 66/* The compiler is not a multi-threaded application and therefore we
3b681e9d
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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).
9c30c0e7 70
3b681e9d 71 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
f31e826b
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72 code is multi-thread safe by default. If it is set to 0, then do
73 not worry about using the _unlocked functions.
0d569849 74
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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). */
9c30c0e7 78
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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
0d667716
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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
3b681e9d
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97# ifdef HAVE_FPUTC_UNLOCKED
98# undef fputc
99# define fputc(C, Stream) fputc_unlocked (C, Stream)
100# endif
101
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102#ifdef __cplusplus
103extern "C" {
104#endif
105
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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
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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
2a0621b9 152extern int fputs_unlocked (const char *, FILE *);
3b681e9d
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153# endif
154# endif
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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
3b681e9d
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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
0d667716 173extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
3b681e9d 174# endif
9c30c0e7 175# endif
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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
2a0621b9 182extern int fprintf_unlocked (FILE *, const char *, ...);
3b681e9d
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183# endif
184# endif
185
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186#ifdef __cplusplus
187}
188#endif
189
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190#endif
191
0d569849 192/* ??? Glibc's fwrite/fread_unlocked macros cause
1c99d804
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193 "warning: signed and unsigned type in conditional expression". */
194#undef fread_unlocked
195#undef fwrite_unlocked
196
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FXC
197/* Include <string> before "safe-ctype.h" to avoid GCC poisoning
198 the ctype macros through safe-ctype.h */
199
200#ifdef __cplusplus
201# include <string>
202#endif
203
f6bbde28
ZW
204/* There are an extraordinary number of issues with <ctype.h>.
205 The last straw is that it varies with the locale. Use libiberty's
206 replacement instead. */
71f3e391 207#include "safe-ctype.h"
aca69483 208
aca69483 209#include <sys/types.h>
c5c76735 210
aca69483
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211#include <errno.h>
212
6c889b67 213#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
aca69483
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214extern int errno;
215#endif
216
b767da73 217#ifdef __cplusplus
9310366b 218# include <algorithm>
b767da73 219# include <cstring>
9310366b 220# include <utility>
b767da73
JH
221#endif
222
87608693
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223/* Some of glibc's string inlines cause warnings. Plus we'd rather
224 rely on (and therefore test) GCC's string builtins. */
225#define __NO_STRING_INLINES
226
ccc7d11a 227#ifdef STRING_WITH_STRINGS
aca69483 228# include <string.h>
ccc7d11a 229# include <strings.h>
aca69483 230#else
ccc7d11a
KG
231# ifdef HAVE_STRING_H
232# include <string.h>
233# else
234# ifdef HAVE_STRINGS_H
235# include <strings.h>
236# endif
aca69483
KG
237# endif
238#endif
239
240#ifdef HAVE_STDLIB_H
241# include <stdlib.h>
242#endif
243
469a31a9
OE
244/* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
245 that it is processed before we poison "malloc"; otherwise, if a source
246 file uses a standard library header that includes <cstdlib>, we will get
247 an error about 'using std::malloc'. */
248#ifdef __cplusplus
249#include <cstdlib>
250#endif
251
e053cf01
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252/* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
253#undef vec_free
254
eaf4e618
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255/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
256 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
257 or 0 and 1 if those macros are not defined. */
258#ifndef SUCCESS_EXIT_CODE
259# ifdef EXIT_SUCCESS
260# define SUCCESS_EXIT_CODE EXIT_SUCCESS
261# else
262# define SUCCESS_EXIT_CODE 0
263# endif
264#endif
265
266#ifndef FATAL_EXIT_CODE
267# ifdef EXIT_FAILURE
268# define FATAL_EXIT_CODE EXIT_FAILURE
269# else
270# define FATAL_EXIT_CODE 1
271# endif
272#endif
273
ddaf3b86
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274#define ICE_EXIT_CODE 4
275
aca69483
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276#ifdef HAVE_UNISTD_H
277# include <unistd.h>
278#endif
279
280#ifdef HAVE_SYS_PARAM_H
281# include <sys/param.h>
84935d25 282/* We use these identifiers later and they appear in some vendor param.h's. */
655781b7 283# undef PREFETCH
84935d25 284# undef m_slot
aca69483
KG
285#endif
286
287#if HAVE_LIMITS_H
288# include <limits.h>
289#endif
290
5297e085
KG
291/* A macro to determine whether a VALUE lies inclusively within a
292 certain range without evaluating the VALUE more than once. This
293 macro won't warn if the VALUE is unsigned and the LOWER bound is
294 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
295 bound *is* evaluated twice, and LOWER must not be greater than
296 UPPER. However the bounds themselves can be either positive or
297 negative. */
298#define IN_RANGE(VALUE, LOWER, UPPER) \
b5edaa2c
RS
299 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
300 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
5297e085 301
f12bc141
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302/* Infrastructure for defining missing _MAX and _MIN macros. Note that
303 macros defined with these cannot be used in #if. */
304
305/* The extra casts work around common compiler bugs. */
306#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
307/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
308 It is necessary at least when t == time_t. */
309#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
c3284718 310 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
f12bc141
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311#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
312
313/* Use that infrastructure to provide a few constants. */
314#ifndef UCHAR_MAX
315# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
316#endif
317
aca69483
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318#ifdef TIME_WITH_SYS_TIME
319# include <sys/time.h>
320# include <time.h>
321#else
322# if HAVE_SYS_TIME_H
e572c0c6 323# include <sys/time.h>
aca69483 324# else
e572c0c6
KG
325# ifdef HAVE_TIME_H
326# include <time.h>
327# endif
328# endif
aca69483
KG
329#endif
330
331#ifdef HAVE_FCNTL_H
332# include <fcntl.h>
333#else
e572c0c6
KG
334# ifdef HAVE_SYS_FILE_H
335# include <sys/file.h>
336# endif
aca69483
KG
337#endif
338
339#ifndef SEEK_SET
340# define SEEK_SET 0
341# define SEEK_CUR 1
342# define SEEK_END 2
343#endif
344#ifndef F_OK
345# define F_OK 0
346# define X_OK 1
347# define W_OK 2
348# define R_OK 4
349#endif
e572c0c6
KG
350#ifndef O_RDONLY
351# define O_RDONLY 0
352#endif
353#ifndef O_WRONLY
354# define O_WRONLY 1
355#endif
71f3e391
JM
356#ifndef O_BINARY
357# define O_BINARY 0
358#endif
aca69483 359
36b8337d
KG
360/* Some systems define these in, e.g., param.h. We undefine these names
361 here to avoid the warnings. We prefer to use our definitions since we
362 know they are correct. */
363
364#undef MIN
365#undef MAX
366#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
367#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
368
13799af3
MM
369/* Returns the least number N such that N * Y >= X. */
370#define CEIL(x,y) (((x) + (y) - 1) / (y))
371
e9831ca0
KG
372#ifdef HAVE_SYS_WAIT_H
373#include <sys/wait.h>
374#endif
375
376#ifndef WIFSIGNALED
377#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
378#endif
379#ifndef WTERMSIG
380#define WTERMSIG(S) ((S) & 0x7f)
381#endif
382#ifndef WIFEXITED
383#define WIFEXITED(S) (((S) & 0xff) == 0)
384#endif
385#ifndef WEXITSTATUS
386#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
387#endif
8fa213ac
PDM
388#ifndef WSTOPSIG
389#define WSTOPSIG WEXITSTATUS
390#endif
15dda4d3
KG
391#ifndef WCOREDUMP
392#define WCOREDUMP(S) ((S) & WCOREFLG)
393#endif
394#ifndef WCOREFLG
395#define WCOREFLG 0200
396#endif
e9831ca0 397
71f3e391
JM
398#include <signal.h>
399#if !defined (SIGCHLD) && defined (SIGCLD)
400# define SIGCHLD SIGCLD
401#endif
402
403#ifdef HAVE_SYS_MMAN_H
404# include <sys/mman.h>
405#endif
406
407#ifndef MAP_FAILED
408# define MAP_FAILED ((void *)-1)
409#endif
410
411#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
412# define MAP_ANONYMOUS MAP_ANON
413#endif
414
415#ifdef HAVE_SYS_RESOURCE_H
416# include <sys/resource.h>
417#endif
418
419#ifdef HAVE_SYS_TIMES_H
420# include <sys/times.h>
421#endif
422
f31e826b
KG
423/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
424 are defined to 0 then we must provide the relevant declaration
425 here. These checks will be in the undefined state while configure
426 is running so be careful to test "defined (HAVE_DECL_*)". */
aca69483 427
4d1c7421
RO
428#ifdef __cplusplus
429extern "C" {
430#endif
431
f31e826b 432#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
2a0621b9 433extern double atof (const char *);
8f81384f
KG
434#endif
435
f31e826b 436#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
2a0621b9 437extern long atol (const char *);
8f81384f
KG
438#endif
439
f31e826b 440#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
2a0621b9 441extern void free (void *);
aca69483
KG
442#endif
443
f31e826b 444#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
2a0621b9 445extern char *getcwd (char *, size_t);
6cd5dccd
KG
446#endif
447
f31e826b 448#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
2a0621b9 449extern char *getenv (const char *);
79e11844
KG
450#endif
451
ebb13e7e 452#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
2a0621b9 453extern int getopt (int, char * const *, const char *);
ebb13e7e
RK
454#endif
455
f6260033
EB
456#if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
457extern int getpagesize (void);
6a257778
AL
458#endif
459
f31e826b 460#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
2a0621b9 461extern char *getwd (char *);
6cd5dccd
KG
462#endif
463
f31e826b 464#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
2a0621b9 465extern void *sbrk (int);
8f81384f
KG
466#endif
467
f31e826b 468#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
2a0621b9 469extern char *strstr (const char *, const char *);
d3d5cc97
JL
470#endif
471
123cd463
DA
472#if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
473extern char *stpcpy (char *, const char *);
474#endif
475
4d1c7421
RO
476#ifdef __cplusplus
477}
478#endif
479
c5c76735
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480#ifdef HAVE_MALLOC_H
481#include <malloc.h>
482#endif
483
4d1c7421
RO
484#ifdef __cplusplus
485extern "C" {
486#endif
487
f31e826b 488#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
2a0621b9 489extern void *malloc (size_t);
c5c76735
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490#endif
491
f31e826b 492#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
2a0621b9 493extern void *calloc (size_t, size_t);
c5c76735
JL
494#endif
495
f31e826b 496#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
2a0621b9 497extern void *realloc (void *, size_t);
c5c76735
JL
498#endif
499
4d1c7421
RO
500#ifdef __cplusplus
501}
502#endif
503
7c2a2dbf
KT
504#ifdef HAVE_STDINT_H
505#include <stdint.h>
506#endif
507
508#ifdef HAVE_INTTYPES_H
509#include <inttypes.h>
510#endif
511
4d1c7421
RO
512#ifdef __cplusplus
513extern "C" {
514#endif
515
759af044 516/* If the system doesn't provide strsignal, we get it defined in
2ba84f36 517 libiberty but no declaration is supplied. */
0a18ddf9
AS
518#if !defined (HAVE_STRSIGNAL) \
519 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
759af044 520# ifndef strsignal
2a0621b9 521extern const char *strsignal (int);
007e8d2a 522# endif
759af044 523#endif
007e8d2a 524
d2cabf16 525#ifdef HAVE_GETRLIMIT
f31e826b 526# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
d2cabf16 527# ifndef getrlimit
d4d4ae5f 528struct rlimit;
2a0621b9 529extern int getrlimit (int, struct rlimit *);
d2cabf16
KG
530# endif
531# endif
532#endif
533
534#ifdef HAVE_SETRLIMIT
f31e826b 535# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
d2cabf16 536# ifndef setrlimit
d4d4ae5f 537struct rlimit;
2a0621b9 538extern int setrlimit (int, const struct rlimit *);
d2cabf16
KG
539# endif
540# endif
541#endif
542
f31e826b 543#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
2a0621b9 544extern void abort (void);
2a611d21 545#endif
d4ba0ead 546
236ce4b2
ZW
547#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
548extern int snprintf (char *, size_t, const char *, ...);
549#endif
550
367e8319 551#if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
c3284718 552extern int vsnprintf (char *, size_t, const char *, va_list);
367e8319
EB
553#endif
554
4d1c7421
RO
555#ifdef __cplusplus
556}
557#endif
558
61d0346d 559/* 1 if we have C99 designated initializers. */
18922061 560#if !defined(HAVE_DESIGNATED_INITIALIZERS)
61d0346d 561#define HAVE_DESIGNATED_INITIALIZERS \
bf406687
ILT
562 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
563 && !defined(__cplusplus))
18922061 564#endif
61d0346d 565
9ca1483b
JM
566#if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
567#define HAVE_DESIGNATED_UNION_INITIALIZERS \
568 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
569 && (!defined(__cplusplus) || (GCC_VERSION >= 4007)))
570#endif
571
a05e22b8
RH
572#if HAVE_SYS_STAT_H
573# include <sys/stat.h>
574#endif
9855b854
MN
575
576/* Test if something is a normal file. */
577#ifndef S_ISREG
578#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
579#endif
580
581/* Test if something is a directory. */
582#ifndef S_ISDIR
583#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
584#endif
585
6458033d
ZW
586/* Test if something is a character special file. */
587#ifndef S_ISCHR
588#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
589#endif
590
be3dad6f
PDM
591/* Test if something is a block special file. */
592#ifndef S_ISBLK
593#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
594#endif
595
6458033d
ZW
596/* Test if something is a socket. */
597#ifndef S_ISSOCK
598# ifdef S_IFSOCK
599# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
600# else
601# define S_ISSOCK(m) 0
602# endif
603#endif
604
605/* Test if something is a FIFO. */
606#ifndef S_ISFIFO
607# ifdef S_IFIFO
608# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
609# else
610# define S_ISFIFO(m) 0
611# endif
612#endif
613
f3692274
ME
614/* Define well known filenos if the system does not define them. */
615#ifndef STDIN_FILENO
616# define STDIN_FILENO 0
617#endif
618#ifndef STDOUT_FILENO
619# define STDOUT_FILENO 1
620#endif
924d8a7c 621#ifndef STDERR_FILENO
f3692274
ME
622# define STDERR_FILENO 2
623#endif
624
2ba84f36 625/* Some systems have mkdir that takes a single argument. */
75923b2f 626#ifdef MKDIR_TAKES_ONE_ARG
c3284718 627# define mkdir(a,b) mkdir (a)
75923b2f
MK
628#endif
629
71f3e391 630#ifndef HAVE_KILL
c3284718 631# define kill(p,s) raise (s)
71f3e391
JM
632#endif
633
edb89024
DR
634/* Provide a way to print an address via printf. */
635#ifndef HOST_PTR_PRINTF
636#define HOST_PTR_PRINTF "%p"
637#endif /* ! HOST_PTR_PRINTF */
638
d5b6516d
MK
639/* By default, colon separates directories in a path. */
640#ifndef PATH_SEPARATOR
641#define PATH_SEPARATOR ':'
642#endif
643
3dce1408
ZW
644/* Filename handling macros. */
645#include "filenames.h"
646
647/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
d5b6516d 648#ifndef DIR_SEPARATOR
3dce1408
ZW
649# define DIR_SEPARATOR '/'
650# ifdef HAVE_DOS_BASED_FILE_SYSTEM
651# define DIR_SEPARATOR_2 '\\'
652# endif
c5c0b3d9
RK
653#endif
654
0c5d770e
IS
655#if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
656/* If plugin support is enabled, we could use libdl. */
657#include <dlfcn.h>
658#endif
659
34ab62ee
RB
660/* Do not introduce a gmp.h dependency on the build system. */
661#ifndef GENERATOR_FILE
d106911b 662#include <gmp.h>
34ab62ee 663#endif
d106911b 664
2ba84f36 665/* Get libiberty declarations. */
2778b98d
KG
666#include "libiberty.h"
667
9081064a
RO
668#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
669#undef FLOAT /* Likewise. */
670#undef ABS /* Likewise. */
671#undef PC /* Likewise. */
672
49009afd
JL
673/* Provide a default for the HOST_BIT_BUCKET.
674 This suffices for POSIX-like hosts. */
675
676#ifndef HOST_BIT_BUCKET
677#define HOST_BIT_BUCKET "/dev/null"
678#endif
679
e0125cf3 680#ifndef offsetof
cf403648 681#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
e0125cf3 682#endif
c149cc37 683
fbfc1192
ZW
684/* Various error reporting routines want to use __FUNCTION__. */
685#if (GCC_VERSION < 2007)
791ef777 686#ifndef __FUNCTION__
fbfc1192 687#define __FUNCTION__ "?"
791ef777 688#endif /* ! __FUNCTION__ */
fbfc1192
ZW
689#endif
690
2c3fcba6
ZW
691/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
692 the most likely value of A is B. This feature was added at some point
693 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
694#if (GCC_VERSION < 3000)
695#define __builtin_expect(a, b) (a)
696#endif
697
b3d1f5b4
NS
698/* Redefine abort to report an internal error w/o coredump, and
699 reporting the location of the error in the source file. */
700extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
701#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
702
06c37c96
NS
703/* Use gcc_assert(EXPR) to test invariants. */
704#if ENABLE_ASSERT_CHECKING
705#define gcc_assert(EXPR) \
2c46a62f 706 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
2df77822
DD
707#elif (GCC_VERSION >= 4005)
708#define gcc_assert(EXPR) \
c3284718 709 ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
06c37c96 710#else
2c46a62f
NS
711/* Include EXPR, so that unused variable warnings do not occur. */
712#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
06c37c96
NS
713#endif
714
06795261
JH
715#ifdef ENABLE_CHECKING
716#define gcc_checking_assert(EXPR) gcc_assert (EXPR)
717#else
718#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
719#endif
720
06c37c96
NS
721/* Use gcc_unreachable() to mark unreachable locations (like an
722 unreachable default case of a switch. Do not use gcc_assert(0). */
2df77822 723#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
c3284718 724#define gcc_unreachable() __builtin_unreachable ()
2df77822 725#else
06c37c96 726#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
2df77822 727#endif
06c37c96 728
807e902e
KZ
729#if GCC_VERSION >= 3001
730#define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
731#else
732#define STATIC_CONSTANT_P(X) (false && (X))
733#endif
734
735/* Until we can use C++11's static_assert. */
736#define STATIC_ASSERT(X) \
737 typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
738
2fac9c01
ZW
739/* Provide a fake boolean type. We make no attempt to use the
740 C99 _Bool, as it may not be available in the bootstrap compiler,
f676971a 741 and even if it is, it is liable to be buggy.
2fac9c01
ZW
742 This must be after all inclusion of system headers, as some of
743 them will mess us up. */
ca79179c 744
d6edb99e
ZW
745#undef TRUE
746#undef FALSE
747
ca79179c
BI
748#ifdef __cplusplus
749 /* Obsolete. */
750# define TRUE true
751# define FALSE false
752#else /* !__cplusplus */
753# undef bool
754# undef true
755# undef false
756
757# define bool unsigned char
758# define true 1
759# define false 0
760
761 /* Obsolete. */
762# define TRUE true
763# define FALSE false
764#endif /* !__cplusplus */
d6edb99e 765
2fac9c01
ZW
766/* Some compilers do not allow the use of unsigned char in bitfields. */
767#define BOOL_BITFIELD unsigned int
768
f4ce9d90
KG
769/* As the last action in this file, we poison the identifiers that
770 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
771 preprocessor won't trip on poisoned identifiers that arrive from
772 the expansion of macros. E.g. #define strrchr rindex, won't error
773 if rindex is poisoned after this directive is issued and later on
774 strrchr is called.
775
776 Note: We define bypass macros for the few cases where we really
777 want to use the libc memory allocation routines. Otherwise we
778 insist you use the "x" versions from libiberty. */
779
780#define really_call_malloc malloc
781#define really_call_calloc calloc
782#define really_call_realloc realloc
783
f92ed976 784#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
4977bab6 785/* Flex and bison use malloc and realloc. Yuk. Note that this means
32dd366d 786 really_call_* cannot be used in a .l or .y file. */
4977bab6
ZW
787#define malloc xmalloc
788#define realloc xrealloc
789#endif
790
f4ce9d90
KG
791#if (GCC_VERSION >= 3000)
792
77b84559
KG
793/* Note autoconf checks for prototype declarations and includes
794 system.h while doing so. Only poison these tokens if actually
795 compiling gcc, so that the autoconf declaration tests for malloc
796 etc don't spuriously fail. */
797#ifdef IN_GCC
8a0e5115
KG
798#undef calloc
799#undef strdup
e2500fed
GK
800 #pragma GCC poison calloc strdup
801
4977bab6 802#if !defined(FLEX_SCANNER) && !defined(YYBISON)
e2500fed
GK
803#undef malloc
804#undef realloc
805 #pragma GCC poison malloc realloc
806#endif
41441dc7 807
e7ff5730
JM
808/* The %m format should be used when GCC's main diagnostic functions
809 supporting %m are available, and xstrerror from libiberty
810 otherwise. */
811#undef strerror
812 #pragma GCC poison strerror
813
e091ffb7
DE
814/* loc_t is defined on some systems and too inviting for some
815 programmers to avoid. */
816#undef loc_t
817 #pragma GCC poison loc_t
818
41441dc7
NB
819/* Old target macros that have moved to the target hooks structure. */
820 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
821 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
822 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
823 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
824 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
825 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
826 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
aa6ad1a6 827 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
44a147ad 828 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
fb49053f 829 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
3961e8fe 830 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
dcefdf67 831 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
75c20980 832 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
30ee56e1
ZW
833 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
834 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
835 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
4ac8340c 836 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
510d1e80 837 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
cde0f3fd 838 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
fefcb65c
KH
839 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
840 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
221ee7c9 841 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
84b8b0e0 842 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
fe984136 843 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
f676971a 844 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
78a52f11 845 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
b48f503c 846 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
7b5cbb57 847 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
82497700 848 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
079e7538 849 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
fac0f722 850 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
32bd8fcf 851 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
ad0c4c36
DD
852 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
853 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \
f16d3f39
JH
854 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \
855 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
3bb4db67 856 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
e1ab7892 857 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
8cc4b7a2 858 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
a5474c4c
JG
859 LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
860 CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
861 STORE_BY_PIECES_P
aa6ad1a6 862
80cf2e08 863/* Target macros only used for code built for the target, that have
cdbf4541 864 moved to libgcc-tm.h or have never been present elsewhere. */
58cd1d70 865 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
cca2207a
L
866 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
867 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
80cf2e08 868
e2500fed 869/* Other obsolete target macros, or macros that used to be in target
006946e4
JM
870 headers and were not used, and may be obsolete or may never have
871 been used. */
c08f71aa 872 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
6a6c0154 873 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
ed722f66 874 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
16c484c7 875 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
006946e4 876 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
c99d986a 877 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
f458d1d5 878 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
a11eba95 879 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
fc881338
RH
880 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
881 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
882 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
68d5a1cd
KC
883 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
884 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
80eaf415 885 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
f691dc3b
AJ
886 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
887 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
888 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
5145a02e 889 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
edf11bda 890 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
ba029213 891 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
c6a515f4 892 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
b816f339 893 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
616f6d84 894 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
16201823 895 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
9b2b3375 896 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
1197924d 897 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
9e9126f3 898 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
c1a41c2f 899 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
fdf89bf5 900 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
67dfe110 901 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
082a099c 902 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
bb2d400f 903 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
b89dc911 904 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
ac746f1d
ZW
905 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
906 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
907 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
93a27b7b 908 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
6e14af16 909 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
6be85b25 910 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
c5ff069d 911 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
57642751 912 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
bacf5b96 913 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
c2acaf06 914 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
82b68940 915 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
d6b5193b 916 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
00dcee0c 917 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
f5e605e5 918 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
82b68940 919 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
5a733826 920 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
e4f7c483 921 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
c3fb2eb4 922 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
2be55a25 923 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
24a57808 924 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
b27c742b 925 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
57809813 926 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
b25b9e8f 927 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
eb1eb914 928 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
3d223145 929 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
f47a61f3 930 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
08b2bad2 931 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
7c17f335 932 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
975667e7 933 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
0c93ed52
SB
934 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \
935 DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \
936 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
01a07a64
SB
937 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
938 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
4e2edffd 939 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
cc193fba 940 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
b0f6b612 941 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
97049e83 942 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
b48e9677
RS
943 ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
944 REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
777e635f
RS
945 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
946 REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
947 EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
ef24330d 948 EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
9686a2e6 949 CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
9a79452d
JM
950 ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
951 LIBGCC2_LONG_DOUBLE_TYPE_SIZE
aa6ad1a6 952
e2500fed
GK
953/* Hooks that are no longer used. */
954 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
9dcf6e73
JM
955 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
956 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
957 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
958 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
cde0f3fd 959 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
61ff2bdc 960 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
3020190e 961 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1756cb66 962 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
5c30094f 963 TARGET_IRA_COVER_CLASSES TARGET_HELP \
30a7bac9
RH
964 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
965 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
966 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
e2500fed 967
e79983f4
MM
968/* Arrays that were deleted in favor of a functional interface. */
969 #pragma GCC poison built_in_decls implicit_built_in_decls
970
a18bdccd 971/* Hooks into libgcc2. */
a3abe41c
NF
972 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
973 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
a18bdccd 974
2d593c86 975/* Miscellaneous macros that are no longer used. */
71f3e391 976 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
2d593c86 977
b0c231bb
KG
978/* Libiberty macros that are no longer used in GCC. */
979#undef ANSI_PROTOTYPES
980#undef PTR_CONST
981#undef LONG_DOUBLE
982#undef VPARAMS
983#undef VA_OPEN
984#undef VA_FIXEDARG
985#undef VA_CLOSE
986#undef VA_START
627aa08a
KG
987 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
988 VA_FIXEDARG VA_CLOSE VA_START
77b84559 989#endif /* IN_GCC */
f4ce9d90 990
7a3b4887
SB
991/* Front ends should never have to include middle-end headers. Enforce
992 this by poisoning the header double-include protection defines. */
993#ifdef IN_GCC_FRONTEND
4d451982 994#pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
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995#endif
996
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997/* Note: not all uses of the `index' token (e.g. variable names and
998 structure members) have been eliminated. */
999#undef bcopy
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1000#undef bzero
1001#undef bcmp
1002#undef rindex
8e944909 1003 #pragma GCC poison bcopy bzero bcmp rindex
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1004
1005#endif /* GCC >= 3.0 */
1006
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1007/* This macro allows casting away const-ness to pass -Wcast-qual
1008 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
1009 only be used in certain specific cases. One valid case is where
1010 the C standard definitions or prototypes force you to. E.g. if you
1011 need to free a const object, or if you pass a const string to
1012 execv, et al. Another valid use would be in an allocation function
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KG
1013 that creates const objects that need to be initialized. In some
1014 cases we have non-const functions that return the argument
1015 (e.g. next_nonnote_insn). Rather than create const shadow
1016 functions, we can cast away const-ness in calling these interfaces
1017 if we're careful to verify that the called function does indeed not
1018 modify its argument and the return value is only used in a const
1019 context. (This can be somewhat dangerous as these assumptions can
1020 change after the fact). Beyond these uses, most other cases of
1021 using this macro should be viewed with extreme caution. */
0b51511b 1022
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1023#ifdef __cplusplus
1024#define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1025#else
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1026#if defined(__GNUC__) && GCC_VERSION > 4000
1027/* GCC 4.0.x has a bug where it may ICE on this expression,
1028 so does GCC 3.4.x (PR17436). */
b1d5455a 1029#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
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1030#elif defined(__GNUC__)
1031static inline char *
1032helper_const_non_const_cast (const char *p)
1033{
1034 union {
1035 const char *const_c;
1036 char *c;
1037 } val;
1038 val.const_c = p;
1039 return val.c;
1040}
1041
1042#define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1043 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
68a57691 1044#else
b1d5455a 1045#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
68a57691 1046#endif
cea32bca 1047#endif
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1048#define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1049#define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1050#define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
c838c402 1051#define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
c3284718 1052#define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
daa6e488 1053#define CONST_CAST_GIMPLE(X) CONST_CAST (struct gimple_statement_base *, (X))
68a57691 1054
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1055/* Activate certain diagnostics as warnings (not errors via the
1056 -Werror flag). */
fe9a2598 1057#if GCC_VERSION >= 4003
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1058/* If asserts are disabled, activate -Wuninitialized as a warning (not
1059 an error/-Werror). */
ad7aacba 1060#ifndef ENABLE_ASSERT_CHECKING
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1061#pragma GCC diagnostic warning "-Wuninitialized"
1062#endif
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1063#endif
1064
279a935f 1065#ifdef ENABLE_VALGRIND_ANNOTATIONS
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1066# ifdef HAVE_VALGRIND_MEMCHECK_H
1067# include <valgrind/memcheck.h>
1068# elif defined HAVE_MEMCHECK_H
1069# include <memcheck.h>
1070# else
1071# include <valgrind.h>
1072# endif
1073/* Compatibility macros to let valgrind 3.1 work. */
1074# ifndef VALGRIND_MAKE_MEM_NOACCESS
1075# define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1076# endif
1077# ifndef VALGRIND_MAKE_MEM_DEFINED
1078# define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1079# endif
1080# ifndef VALGRIND_MAKE_MEM_UNDEFINED
1081# define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1082# endif
1083#else
1084/* Avoid #ifdef:s when we can help it. */
1085#define VALGRIND_DISCARD(x)
1086#define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1087#define VALGRIND_FREELIKE_BLOCK(x,y)
1088#endif
1089
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1090/* In LTO -fwhole-program build we still want to keep the debug functions available
1091 for debugger. Mark them as used to prevent removal. */
1092#if (GCC_VERSION > 4000)
1093#define DEBUG_FUNCTION __attribute__ ((__used__))
1094#define DEBUG_VARIABLE __attribute__ ((__used__))
1095#else
1096#define DEBUG_FUNCTION
1097#define DEBUG_VARIABLE
1098#endif
1099
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1100/* General macro to extract bit Y of X. */
1101#define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1102
a9243bfc 1103/* Get definitions of HOST_WIDE_INT. */
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RS
1104#include "hwint.h"
1105
88657302 1106#endif /* ! GCC_SYSTEM_H */