Daily bump.
[official-gcc.git] / gcc / system.h
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1 /* Get common system includes and various definitions and declarations based
2 on autoconf macros.
3 Copyright (C) 1998-2013 Free Software Foundation, Inc.
5 This file is part of GCC.
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.
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.
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/>. */
22 #ifndef GCC_SYSTEM_H
23 #define GCC_SYSTEM_H
25 /* We must include stdarg.h before stdio.h. */
26 #include <stdarg.h>
28 #ifndef va_copy
29 # ifdef __va_copy
30 # define va_copy(d,s) __va_copy((d),(s))
31 # else
32 # define va_copy(d,s) ((d) = (s))
33 # endif
34 #endif
36 #ifdef HAVE_STDDEF_H
37 # include <stddef.h>
38 #endif
40 #include <stdio.h>
42 /* Define a generic NULL if one hasn't already been defined. */
43 #ifndef NULL
44 #define NULL 0
45 #endif
47 /* Use the unlocked open routines from libiberty. */
49 /* Some of these are #define on some systems, e.g. on AIX to redirect
50 the names to 64bit capable functions for LARGE_FILES support. These
51 redefs are pointless here so we can override them. */
53 #undef fopen
54 #undef freopen
56 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
57 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
58 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
60 /* The compiler is not a multi-threaded application and therefore we
61 do not have to use the locking functions. In fact, using the locking
62 functions can cause the compiler to be significantly slower under
63 I/O bound conditions (such as -g -O0 on very large source files).
65 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
66 code is multi-thread safe by default. If it is set to 0, then do
67 not worry about using the _unlocked functions.
69 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
70 extensions and need to be prototyped by hand (since we do not
71 define _GNU_SOURCE). */
73 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
75 # ifdef HAVE_PUTC_UNLOCKED
76 # undef putc
77 # define putc(C, Stream) putc_unlocked (C, Stream)
78 # endif
79 # ifdef HAVE_PUTCHAR_UNLOCKED
80 # undef putchar
81 # define putchar(C) putchar_unlocked (C)
82 # endif
83 # ifdef HAVE_GETC_UNLOCKED
84 # undef getc
85 # define getc(Stream) getc_unlocked (Stream)
86 # endif
87 # ifdef HAVE_GETCHAR_UNLOCKED
88 # undef getchar
89 # define getchar() getchar_unlocked ()
90 # endif
91 # ifdef HAVE_FPUTC_UNLOCKED
92 # undef fputc
93 # define fputc(C, Stream) fputc_unlocked (C, Stream)
94 # endif
96 #ifdef __cplusplus
97 extern "C" {
98 #endif
100 # ifdef HAVE_CLEARERR_UNLOCKED
101 # undef clearerr
102 # define clearerr(Stream) clearerr_unlocked (Stream)
103 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
104 extern void clearerr_unlocked (FILE *);
105 # endif
106 # endif
107 # ifdef HAVE_FEOF_UNLOCKED
108 # undef feof
109 # define feof(Stream) feof_unlocked (Stream)
110 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
111 extern int feof_unlocked (FILE *);
112 # endif
113 # endif
114 # ifdef HAVE_FILENO_UNLOCKED
115 # undef fileno
116 # define fileno(Stream) fileno_unlocked (Stream)
117 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
118 extern int fileno_unlocked (FILE *);
119 # endif
120 # endif
121 # ifdef HAVE_FFLUSH_UNLOCKED
122 # undef fflush
123 # define fflush(Stream) fflush_unlocked (Stream)
124 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
125 extern int fflush_unlocked (FILE *);
126 # endif
127 # endif
128 # ifdef HAVE_FGETC_UNLOCKED
129 # undef fgetc
130 # define fgetc(Stream) fgetc_unlocked (Stream)
131 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
132 extern int fgetc_unlocked (FILE *);
133 # endif
134 # endif
135 # ifdef HAVE_FGETS_UNLOCKED
136 # undef fgets
137 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
138 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
139 extern char *fgets_unlocked (char *, int, FILE *);
140 # endif
141 # endif
142 # ifdef HAVE_FPUTS_UNLOCKED
143 # undef fputs
144 # define fputs(String, Stream) fputs_unlocked (String, Stream)
145 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
146 extern int fputs_unlocked (const char *, FILE *);
147 # endif
148 # endif
149 # ifdef HAVE_FERROR_UNLOCKED
150 # undef ferror
151 # define ferror(Stream) ferror_unlocked (Stream)
152 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
153 extern int ferror_unlocked (FILE *);
154 # endif
155 # endif
156 # ifdef HAVE_FREAD_UNLOCKED
157 # undef fread
158 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
159 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
160 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
161 # endif
162 # endif
163 # ifdef HAVE_FWRITE_UNLOCKED
164 # undef fwrite
165 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
166 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
167 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
168 # endif
169 # endif
170 # ifdef HAVE_FPRINTF_UNLOCKED
171 # undef fprintf
172 /* We can't use a function-like macro here because we don't know if
173 we have varargs macros. */
174 # define fprintf fprintf_unlocked
175 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
176 extern int fprintf_unlocked (FILE *, const char *, ...);
177 # endif
178 # endif
180 #ifdef __cplusplus
182 #endif
184 #endif
186 /* ??? Glibc's fwrite/fread_unlocked macros cause
187 "warning: signed and unsigned type in conditional expression". */
188 #undef fread_unlocked
189 #undef fwrite_unlocked
191 /* There are an extraordinary number of issues with <ctype.h>.
192 The last straw is that it varies with the locale. Use libiberty's
193 replacement instead. */
194 #include "safe-ctype.h"
196 #include <sys/types.h>
198 #include <errno.h>
200 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
201 extern int errno;
202 #endif
204 #ifdef __cplusplus
205 # include <cstring>
206 #endif
208 /* Some of glibc's string inlines cause warnings. Plus we'd rather
209 rely on (and therefore test) GCC's string builtins. */
210 #define __NO_STRING_INLINES
212 #ifdef STRING_WITH_STRINGS
213 # include <string.h>
214 # include <strings.h>
215 #else
216 # ifdef HAVE_STRING_H
217 # include <string.h>
218 # else
219 # ifdef HAVE_STRINGS_H
220 # include <strings.h>
221 # endif
222 # endif
223 #endif
225 #ifdef HAVE_STDLIB_H
226 # include <stdlib.h>
227 #endif
229 /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
230 that it is processed before we poison "malloc"; otherwise, if a source
231 file uses a standard library header that includes <cstdlib>, we will get
232 an error about 'using std::malloc'. */
233 #ifdef __cplusplus
234 #include <cstdlib>
235 #endif
237 /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
238 #undef vec_free
240 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
241 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
242 or 0 and 1 if those macros are not defined. */
243 #ifndef SUCCESS_EXIT_CODE
244 # ifdef EXIT_SUCCESS
245 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
246 # else
247 # define SUCCESS_EXIT_CODE 0
248 # endif
249 #endif
251 #ifndef FATAL_EXIT_CODE
252 # ifdef EXIT_FAILURE
253 # define FATAL_EXIT_CODE EXIT_FAILURE
254 # else
255 # define FATAL_EXIT_CODE 1
256 # endif
257 #endif
259 #define ICE_EXIT_CODE 4
261 #ifdef HAVE_UNISTD_H
262 # include <unistd.h>
263 #endif
265 #ifdef HAVE_SYS_PARAM_H
266 # include <sys/param.h>
267 /* We use this identifier later and it appears in some vendor param.h's. */
268 # undef PREFETCH
269 #endif
271 #if HAVE_LIMITS_H
272 # include <limits.h>
273 #endif
275 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
276 #include "hwint.h"
278 /* A macro to determine whether a VALUE lies inclusively within a
279 certain range without evaluating the VALUE more than once. This
280 macro won't warn if the VALUE is unsigned and the LOWER bound is
281 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
282 bound *is* evaluated twice, and LOWER must not be greater than
283 UPPER. However the bounds themselves can be either positive or
284 negative. */
285 #define IN_RANGE(VALUE, LOWER, UPPER) \
286 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
287 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
289 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
290 macros defined with these cannot be used in #if. */
292 /* The extra casts work around common compiler bugs. */
293 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
294 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
295 It is necessary at least when t == time_t. */
296 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
297 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
298 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
300 /* Use that infrastructure to provide a few constants. */
301 #ifndef UCHAR_MAX
302 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
303 #endif
305 #ifdef TIME_WITH_SYS_TIME
306 # include <sys/time.h>
307 # include <time.h>
308 #else
309 # if HAVE_SYS_TIME_H
310 # include <sys/time.h>
311 # else
312 # ifdef HAVE_TIME_H
313 # include <time.h>
314 # endif
315 # endif
316 #endif
318 #ifdef HAVE_FCNTL_H
319 # include <fcntl.h>
320 #else
321 # ifdef HAVE_SYS_FILE_H
322 # include <sys/file.h>
323 # endif
324 #endif
326 #ifndef SEEK_SET
327 # define SEEK_SET 0
328 # define SEEK_CUR 1
329 # define SEEK_END 2
330 #endif
331 #ifndef F_OK
332 # define F_OK 0
333 # define X_OK 1
334 # define W_OK 2
335 # define R_OK 4
336 #endif
337 #ifndef O_RDONLY
338 # define O_RDONLY 0
339 #endif
340 #ifndef O_WRONLY
341 # define O_WRONLY 1
342 #endif
343 #ifndef O_BINARY
344 # define O_BINARY 0
345 #endif
347 /* Some systems define these in, e.g., param.h. We undefine these names
348 here to avoid the warnings. We prefer to use our definitions since we
349 know they are correct. */
351 #undef MIN
352 #undef MAX
353 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
354 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
356 /* Returns the least number N such that N * Y >= X. */
357 #define CEIL(x,y) (((x) + (y) - 1) / (y))
359 #ifdef HAVE_SYS_WAIT_H
360 #include <sys/wait.h>
361 #endif
363 #ifndef WIFSIGNALED
364 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
365 #endif
366 #ifndef WTERMSIG
367 #define WTERMSIG(S) ((S) & 0x7f)
368 #endif
369 #ifndef WIFEXITED
370 #define WIFEXITED(S) (((S) & 0xff) == 0)
371 #endif
372 #ifndef WEXITSTATUS
373 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
374 #endif
375 #ifndef WSTOPSIG
376 #define WSTOPSIG WEXITSTATUS
377 #endif
378 #ifndef WCOREDUMP
379 #define WCOREDUMP(S) ((S) & WCOREFLG)
380 #endif
381 #ifndef WCOREFLG
382 #define WCOREFLG 0200
383 #endif
385 #include <signal.h>
386 #if !defined (SIGCHLD) && defined (SIGCLD)
387 # define SIGCHLD SIGCLD
388 #endif
390 #ifdef HAVE_SYS_MMAN_H
391 # include <sys/mman.h>
392 #endif
394 #ifndef MAP_FAILED
395 # define MAP_FAILED ((void *)-1)
396 #endif
398 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
399 # define MAP_ANONYMOUS MAP_ANON
400 #endif
402 #ifdef HAVE_SYS_RESOURCE_H
403 # include <sys/resource.h>
404 #endif
406 #ifdef HAVE_SYS_TIMES_H
407 # include <sys/times.h>
408 #endif
410 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
411 are defined to 0 then we must provide the relevant declaration
412 here. These checks will be in the undefined state while configure
413 is running so be careful to test "defined (HAVE_DECL_*)". */
415 #ifdef __cplusplus
416 extern "C" {
417 #endif
419 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
420 extern double atof (const char *);
421 #endif
423 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
424 extern long atol (const char *);
425 #endif
427 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
428 extern void free (void *);
429 #endif
431 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
432 extern char *getcwd (char *, size_t);
433 #endif
435 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
436 extern char *getenv (const char *);
437 #endif
439 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
440 extern int getopt (int, char * const *, const char *);
441 #endif
443 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
444 extern int getpagesize (void);
445 #endif
447 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
448 extern char *getwd (char *);
449 #endif
451 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
452 extern void *sbrk (int);
453 #endif
455 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
456 extern char *strstr (const char *, const char *);
457 #endif
459 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
460 extern char *stpcpy (char *, const char *);
461 #endif
463 #ifdef __cplusplus
465 #endif
467 #ifdef HAVE_MALLOC_H
468 #include <malloc.h>
469 #endif
471 #ifdef __cplusplus
472 extern "C" {
473 #endif
475 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
476 extern void *malloc (size_t);
477 #endif
479 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
480 extern void *calloc (size_t, size_t);
481 #endif
483 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
484 extern void *realloc (void *, size_t);
485 #endif
487 #ifdef __cplusplus
489 #endif
491 #ifdef HAVE_STDINT_H
492 #include <stdint.h>
493 #endif
495 #ifdef HAVE_INTTYPES_H
496 #include <inttypes.h>
497 #endif
499 #ifdef __cplusplus
500 extern "C" {
501 #endif
503 /* If the system doesn't provide strsignal, we get it defined in
504 libiberty but no declaration is supplied. */
505 #if !defined (HAVE_STRSIGNAL) \
506 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
507 # ifndef strsignal
508 extern const char *strsignal (int);
509 # endif
510 #endif
512 #ifdef HAVE_GETRLIMIT
513 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
514 # ifndef getrlimit
515 struct rlimit;
516 extern int getrlimit (int, struct rlimit *);
517 # endif
518 # endif
519 #endif
521 #ifdef HAVE_SETRLIMIT
522 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
523 # ifndef setrlimit
524 struct rlimit;
525 extern int setrlimit (int, const struct rlimit *);
526 # endif
527 # endif
528 #endif
530 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
531 extern void abort (void);
532 #endif
534 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
535 extern int snprintf (char *, size_t, const char *, ...);
536 #endif
538 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
539 extern int vsnprintf(char *, size_t, const char *, va_list);
540 #endif
542 #ifdef __cplusplus
544 #endif
546 /* 1 if we have C99 designated initializers. */
547 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
548 #define HAVE_DESIGNATED_INITIALIZERS \
549 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
550 && !defined(__cplusplus))
551 #endif
553 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
554 #define HAVE_DESIGNATED_UNION_INITIALIZERS \
555 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
556 && (!defined(__cplusplus) || (GCC_VERSION >= 4007)))
557 #endif
559 #if HAVE_SYS_STAT_H
560 # include <sys/stat.h>
561 #endif
563 /* Test if something is a normal file. */
564 #ifndef S_ISREG
565 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
566 #endif
568 /* Test if something is a directory. */
569 #ifndef S_ISDIR
570 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
571 #endif
573 /* Test if something is a character special file. */
574 #ifndef S_ISCHR
575 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
576 #endif
578 /* Test if something is a block special file. */
579 #ifndef S_ISBLK
580 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
581 #endif
583 /* Test if something is a socket. */
584 #ifndef S_ISSOCK
585 # ifdef S_IFSOCK
586 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
587 # else
588 # define S_ISSOCK(m) 0
589 # endif
590 #endif
592 /* Test if something is a FIFO. */
593 #ifndef S_ISFIFO
594 # ifdef S_IFIFO
595 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
596 # else
597 # define S_ISFIFO(m) 0
598 # endif
599 #endif
601 /* Define well known filenos if the system does not define them. */
602 #ifndef STDIN_FILENO
603 # define STDIN_FILENO 0
604 #endif
605 #ifndef STDOUT_FILENO
606 # define STDOUT_FILENO 1
607 #endif
608 #ifndef STDERR_FILENO
609 # define STDERR_FILENO 2
610 #endif
612 /* Some systems have mkdir that takes a single argument. */
613 #ifdef MKDIR_TAKES_ONE_ARG
614 # define mkdir(a,b) mkdir(a)
615 #endif
617 #ifndef HAVE_KILL
618 # define kill(p,s) raise(s)
619 #endif
621 /* Provide a way to print an address via printf. */
622 #ifndef HOST_PTR_PRINTF
623 #define HOST_PTR_PRINTF "%p"
624 #endif /* ! HOST_PTR_PRINTF */
626 /* By default, colon separates directories in a path. */
627 #ifndef PATH_SEPARATOR
628 #define PATH_SEPARATOR ':'
629 #endif
631 /* Filename handling macros. */
632 #include "filenames.h"
634 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
635 #ifndef DIR_SEPARATOR
636 # define DIR_SEPARATOR '/'
637 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
638 # define DIR_SEPARATOR_2 '\\'
639 # endif
640 #endif
642 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
643 /* If plugin support is enabled, we could use libdl. */
644 #include <dlfcn.h>
645 #endif
647 /* Do not introduce a gmp.h dependency on the build system. */
648 #ifndef GENERATOR_FILE
649 #include <gmp.h>
650 #endif
652 /* Get libiberty declarations. */
653 #include "libiberty.h"
655 #undef FFS /* Some systems predefine this symbol; don't let it interfere. */
656 #undef FLOAT /* Likewise. */
657 #undef ABS /* Likewise. */
658 #undef PC /* Likewise. */
660 /* Provide a default for the HOST_BIT_BUCKET.
661 This suffices for POSIX-like hosts. */
663 #ifndef HOST_BIT_BUCKET
664 #define HOST_BIT_BUCKET "/dev/null"
665 #endif
667 #ifndef offsetof
668 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
669 #endif
671 /* Various error reporting routines want to use __FUNCTION__. */
672 #if (GCC_VERSION < 2007)
673 #ifndef __FUNCTION__
674 #define __FUNCTION__ "?"
675 #endif /* ! __FUNCTION__ */
676 #endif
678 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
679 the most likely value of A is B. This feature was added at some point
680 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
681 #if (GCC_VERSION < 3000)
682 #define __builtin_expect(a, b) (a)
683 #endif
685 /* Redefine abort to report an internal error w/o coredump, and
686 reporting the location of the error in the source file. */
687 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
688 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
690 /* Use gcc_assert(EXPR) to test invariants. */
691 #if ENABLE_ASSERT_CHECKING
692 #define gcc_assert(EXPR) \
693 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
694 #elif (GCC_VERSION >= 4005)
695 #define gcc_assert(EXPR) \
696 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0))
697 #else
698 /* Include EXPR, so that unused variable warnings do not occur. */
699 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
700 #endif
702 #ifdef ENABLE_CHECKING
703 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
704 #else
705 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
706 #endif
708 /* Use gcc_unreachable() to mark unreachable locations (like an
709 unreachable default case of a switch. Do not use gcc_assert(0). */
710 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
711 #define gcc_unreachable() __builtin_unreachable()
712 #else
713 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
714 #endif
716 /* Provide a fake boolean type. We make no attempt to use the
717 C99 _Bool, as it may not be available in the bootstrap compiler,
718 and even if it is, it is liable to be buggy.
719 This must be after all inclusion of system headers, as some of
720 them will mess us up. */
722 #undef TRUE
723 #undef FALSE
725 #ifdef __cplusplus
726 /* Obsolete. */
727 # define TRUE true
728 # define FALSE false
729 #else /* !__cplusplus */
730 # undef bool
731 # undef true
732 # undef false
734 # define bool unsigned char
735 # define true 1
736 # define false 0
738 /* Obsolete. */
739 # define TRUE true
740 # define FALSE false
741 #endif /* !__cplusplus */
743 /* Some compilers do not allow the use of unsigned char in bitfields. */
744 #define BOOL_BITFIELD unsigned int
746 /* As the last action in this file, we poison the identifiers that
747 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
748 preprocessor won't trip on poisoned identifiers that arrive from
749 the expansion of macros. E.g. #define strrchr rindex, won't error
750 if rindex is poisoned after this directive is issued and later on
751 strrchr is called.
753 Note: We define bypass macros for the few cases where we really
754 want to use the libc memory allocation routines. Otherwise we
755 insist you use the "x" versions from libiberty. */
757 #define really_call_malloc malloc
758 #define really_call_calloc calloc
759 #define really_call_realloc realloc
761 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
762 /* Flex and bison use malloc and realloc. Yuk. Note that this means
763 really_call_* cannot be used in a .l or .y file. */
764 #define malloc xmalloc
765 #define realloc xrealloc
766 #endif
768 #if (GCC_VERSION >= 3000)
770 /* Note autoconf checks for prototype declarations and includes
771 system.h while doing so. Only poison these tokens if actually
772 compiling gcc, so that the autoconf declaration tests for malloc
773 etc don't spuriously fail. */
774 #ifdef IN_GCC
775 #undef calloc
776 #undef strdup
777 #pragma GCC poison calloc strdup
779 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
780 #undef malloc
781 #undef realloc
782 #pragma GCC poison malloc realloc
783 #endif
785 /* The %m format should be used when GCC's main diagnostic functions
786 supporting %m are available, and xstrerror from libiberty
787 otherwise. */
788 #undef strerror
789 #pragma GCC poison strerror
791 /* loc_t is defined on some systems and too inviting for some
792 programmers to avoid. */
793 #undef loc_t
794 #pragma GCC poison loc_t
796 /* Old target macros that have moved to the target hooks structure. */
797 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
798 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
799 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
800 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
801 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
802 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
803 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
804 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
805 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
806 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
807 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
808 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
809 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
810 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
811 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
812 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
813 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
814 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
815 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
816 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
817 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
818 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
819 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
820 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
821 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
822 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
823 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
824 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
825 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
826 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
827 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
828 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
829 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
830 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \
831 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \
832 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
833 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
834 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
835 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK
837 /* Target macros only used for code built for the target, that have
838 moved to libgcc-tm.h or have never been present elsewhere. */
839 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
840 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
841 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
843 /* Other obsolete target macros, or macros that used to be in target
844 headers and were not used, and may be obsolete or may never have
845 been used. */
846 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
847 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
848 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
849 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
850 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
851 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
852 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
853 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
854 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
855 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
856 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
857 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
858 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
859 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
860 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
861 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
862 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
863 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
864 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
865 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
866 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
867 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
868 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
869 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
870 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
871 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
872 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
873 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
874 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
875 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
876 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
877 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
878 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
879 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
880 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
881 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
882 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
883 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
884 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
885 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
886 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
887 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
888 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
889 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
890 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
891 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
892 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
893 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
894 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
895 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
896 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
897 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
898 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
899 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
900 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
901 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
902 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
903 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
904 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
905 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
906 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
907 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
908 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \
909 DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \
910 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
911 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
912 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
913 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
914 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
915 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
916 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
917 ELIGIBLE_FOR_EPILOGUE_DELAY
919 /* Hooks that are no longer used. */
920 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
921 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
922 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
923 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
924 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
925 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
926 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
927 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
928 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
929 TARGET_IRA_COVER_CLASSES TARGET_HELP \
930 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
931 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
932 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
934 /* Arrays that were deleted in favor of a functional interface. */
935 #pragma GCC poison built_in_decls implicit_built_in_decls
937 /* Hooks into libgcc2. */
938 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
939 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
941 /* Miscellaneous macros that are no longer used. */
942 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
944 /* Libiberty macros that are no longer used in GCC. */
945 #undef ANSI_PROTOTYPES
946 #undef PTR_CONST
947 #undef LONG_DOUBLE
948 #undef VPARAMS
949 #undef VA_OPEN
950 #undef VA_FIXEDARG
951 #undef VA_CLOSE
952 #undef VA_START
953 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
954 VA_FIXEDARG VA_CLOSE VA_START
955 #endif /* IN_GCC */
957 /* Front ends should never have to include middle-end headers. Enforce
958 this by poisoning the header double-include protection defines. */
959 #ifdef IN_GCC_FRONTEND
960 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
961 #endif
963 /* Note: not all uses of the `index' token (e.g. variable names and
964 structure members) have been eliminated. */
965 #undef bcopy
966 #undef bzero
967 #undef bcmp
968 #undef rindex
969 #pragma GCC poison bcopy bzero bcmp rindex
971 #endif /* GCC >= 3.0 */
973 /* This macro allows casting away const-ness to pass -Wcast-qual
974 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
975 only be used in certain specific cases. One valid case is where
976 the C standard definitions or prototypes force you to. E.g. if you
977 need to free a const object, or if you pass a const string to
978 execv, et al. Another valid use would be in an allocation function
979 that creates const objects that need to be initialized. In some
980 cases we have non-const functions that return the argument
981 (e.g. next_nonnote_insn). Rather than create const shadow
982 functions, we can cast away const-ness in calling these interfaces
983 if we're careful to verify that the called function does indeed not
984 modify its argument and the return value is only used in a const
985 context. (This can be somewhat dangerous as these assumptions can
986 change after the fact). Beyond these uses, most other cases of
987 using this macro should be viewed with extreme caution. */
989 #ifdef __cplusplus
990 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
991 #else
992 #if defined(__GNUC__) && GCC_VERSION > 4000
993 /* GCC 4.0.x has a bug where it may ICE on this expression,
994 so does GCC 3.4.x (PR17436). */
995 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
996 #elif defined(__GNUC__)
997 static inline char *
998 helper_const_non_const_cast (const char *p)
1000 union {
1001 const char *const_c;
1002 char *c;
1003 } val;
1004 val.const_c = p;
1005 return val.c;
1008 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1009 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1010 #else
1011 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1012 #endif
1013 #endif
1014 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X))
1015 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X))
1016 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X))
1017 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X))
1018 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X))
1020 /* Activate certain diagnostics as warnings (not errors via the
1021 -Werror flag). */
1022 #if GCC_VERSION >= 4003
1023 /* If asserts are disabled, activate -Wuninitialized as a warning (not
1024 an error/-Werror). */
1025 #ifndef ENABLE_ASSERT_CHECKING
1026 #pragma GCC diagnostic warning "-Wuninitialized"
1027 #endif
1028 #endif
1030 #ifdef ENABLE_VALGRIND_CHECKING
1031 # ifdef HAVE_VALGRIND_MEMCHECK_H
1032 # include <valgrind/memcheck.h>
1033 # elif defined HAVE_MEMCHECK_H
1034 # include <memcheck.h>
1035 # else
1036 # include <valgrind.h>
1037 # endif
1038 /* Compatibility macros to let valgrind 3.1 work. */
1039 # ifndef VALGRIND_MAKE_MEM_NOACCESS
1040 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1041 # endif
1042 # ifndef VALGRIND_MAKE_MEM_DEFINED
1043 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1044 # endif
1045 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1046 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1047 # endif
1048 #else
1049 /* Avoid #ifdef:s when we can help it. */
1050 #define VALGRIND_DISCARD(x)
1051 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1052 #define VALGRIND_FREELIKE_BLOCK(x,y)
1053 #endif
1055 /* In LTO -fwhole-program build we still want to keep the debug functions available
1056 for debugger. Mark them as used to prevent removal. */
1057 #if (GCC_VERSION > 4000)
1058 #define DEBUG_FUNCTION __attribute__ ((__used__))
1059 #define DEBUG_VARIABLE __attribute__ ((__used__))
1060 #else
1061 #define DEBUG_FUNCTION
1062 #define DEBUG_VARIABLE
1063 #endif
1065 #endif /* ! GCC_SYSTEM_H */