1 /* Get common system includes and various definitions and declarations based
3 Copyright (C) 1998-2021 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
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
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/>. */
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
29 #define __STDC_FORMAT_MACROS
31 /* We must include stdarg.h before stdio.h. */
36 # define va_copy(d,s) __va_copy (d, s)
38 # define va_copy(d,s) ((d) = (s))
48 /* Define a generic NULL if one hasn't already been defined. */
53 /* Use the unlocked open routines from libiberty. */
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. */
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)
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).
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.
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). */
79 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
81 # ifdef HAVE_PUTC_UNLOCKED
83 # define putc(C, Stream) putc_unlocked (C, Stream)
85 # ifdef HAVE_PUTCHAR_UNLOCKED
87 # define putchar(C) putchar_unlocked (C)
89 # ifdef HAVE_GETC_UNLOCKED
91 # define getc(Stream) getc_unlocked (Stream)
93 # ifdef HAVE_GETCHAR_UNLOCKED
95 # define getchar() getchar_unlocked ()
97 # ifdef HAVE_FPUTC_UNLOCKED
99 # define fputc(C, Stream) fputc_unlocked (C, Stream)
106 # ifdef HAVE_CLEARERR_UNLOCKED
108 # define clearerr(Stream) clearerr_unlocked (Stream)
109 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
110 extern void clearerr_unlocked (FILE *);
113 # ifdef HAVE_FEOF_UNLOCKED
115 # define feof(Stream) feof_unlocked (Stream)
116 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
117 extern int feof_unlocked (FILE *);
120 # ifdef HAVE_FILENO_UNLOCKED
122 # define fileno(Stream) fileno_unlocked (Stream)
123 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
124 extern int fileno_unlocked (FILE *);
127 # ifdef HAVE_FFLUSH_UNLOCKED
129 # define fflush(Stream) fflush_unlocked (Stream)
130 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
131 extern int fflush_unlocked (FILE *);
134 # ifdef HAVE_FGETC_UNLOCKED
136 # define fgetc(Stream) fgetc_unlocked (Stream)
137 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
138 extern int fgetc_unlocked (FILE *);
141 # ifdef HAVE_FGETS_UNLOCKED
143 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
144 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
145 extern char *fgets_unlocked (char *, int, FILE *);
148 # ifdef HAVE_FPUTS_UNLOCKED
150 # define fputs(String, Stream) fputs_unlocked (String, Stream)
151 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
152 extern int fputs_unlocked (const char *, FILE *);
155 # ifdef HAVE_FERROR_UNLOCKED
157 # define ferror(Stream) ferror_unlocked (Stream)
158 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
159 extern int ferror_unlocked (FILE *);
162 # ifdef HAVE_FREAD_UNLOCKED
164 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
165 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
166 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
169 # ifdef HAVE_FWRITE_UNLOCKED
171 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
172 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
173 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
176 # ifdef HAVE_FPRINTF_UNLOCKED
178 /* We can't use a function-like macro here because we don't know if
179 we have varargs macros. */
180 # define fprintf fprintf_unlocked
181 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
182 extern int fprintf_unlocked (FILE *, const char *, ...);
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
197 /* Include <string> before "safe-ctype.h" to avoid GCC poisoning
198 the ctype macros through safe-ctype.h */
201 #ifdef INCLUDE_STRING
206 /* There are an extraordinary number of issues with <ctype.h>.
207 The last straw is that it varies with the locale. Use libiberty's
208 replacement instead. */
209 #include "safe-ctype.h"
211 #include <sys/types.h>
215 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
220 #if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
221 # include <algorithm>
232 #ifdef INCLUDE_VECTOR
238 #ifdef INCLUDE_FUNCTIONAL
239 # include <functional>
244 # include <type_traits>
247 /* Some of glibc's string inlines cause warnings. Plus we'd rather
248 rely on (and therefore test) GCC's string builtins. */
249 #define __NO_STRING_INLINES
251 #ifdef STRING_WITH_STRINGS
253 # include <strings.h>
255 # ifdef HAVE_STRING_H
258 # ifdef HAVE_STRINGS_H
259 # include <strings.h>
268 /* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
269 that it is processed before we poison "malloc"; otherwise, if a source
270 file uses a standard library header that includes <cstdlib>, we will get
271 an error about 'using std::malloc'. */
276 /* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
279 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
280 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
281 or 0 and 1 if those macros are not defined. */
282 #ifndef SUCCESS_EXIT_CODE
284 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
286 # define SUCCESS_EXIT_CODE 0
290 #ifndef FATAL_EXIT_CODE
292 # define FATAL_EXIT_CODE EXIT_FAILURE
294 # define FATAL_EXIT_CODE 1
298 #define ICE_EXIT_CODE 4
304 #ifdef HAVE_SYS_PARAM_H
305 # include <sys/param.h>
306 /* We use these identifiers later and they appear in some vendor param.h's. */
315 /* A macro to determine whether a VALUE lies inclusively within a
316 certain range without evaluating the VALUE more than once. This
317 macro won't warn if the VALUE is unsigned and the LOWER bound is
318 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
319 bound *is* evaluated twice, and LOWER must not be greater than
320 UPPER. However the bounds themselves can be either positive or
322 #define IN_RANGE(VALUE, LOWER, UPPER) \
323 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
324 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
326 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
327 macros defined with these cannot be used in #if. */
329 /* The extra casts work around common compiler bugs. */
330 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
331 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
332 It is necessary at least when t == time_t. */
333 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
334 ? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
335 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
337 /* Use that infrastructure to provide a few constants. */
339 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
342 #ifdef TIME_WITH_SYS_TIME
343 # include <sys/time.h>
347 # include <sys/time.h>
358 # ifdef HAVE_SYS_FILE_H
359 # include <sys/file.h>
384 /* Some systems define these in, e.g., param.h. We undefine these names
385 here to avoid the warnings. We prefer to use our definitions since we
386 know they are correct. */
390 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
391 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
393 /* Returns the least number N such that N * Y >= X. */
394 #define CEIL(x,y) (((x) + (y) - 1) / (y))
396 /* This macro rounds x up to the y boundary. */
397 #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
399 /* This macro rounds x down to the y boundary. */
400 #define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
402 #ifdef HAVE_SYS_WAIT_H
403 #include <sys/wait.h>
407 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
410 #define WTERMSIG(S) ((S) & 0x7f)
413 #define WIFEXITED(S) (((S) & 0xff) == 0)
416 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
419 #define WSTOPSIG WEXITSTATUS
422 #define WCOREDUMP(S) ((S) & WCOREFLG)
425 #define WCOREFLG 0200
429 #if !defined (SIGCHLD) && defined (SIGCLD)
430 # define SIGCHLD SIGCLD
433 #ifdef HAVE_SYS_MMAN_H
434 # include <sys/mman.h>
438 # define MAP_FAILED ((void *)-1)
441 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
442 # define MAP_ANONYMOUS MAP_ANON
445 #ifdef HAVE_SYS_RESOURCE_H
446 # include <sys/resource.h>
449 #ifdef HAVE_SYS_TIMES_H
450 # include <sys/times.h>
453 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
454 are defined to 0 then we must provide the relevant declaration
455 here. These checks will be in the undefined state while configure
456 is running so be careful to test "defined (HAVE_DECL_*)". */
462 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
463 extern double atof (const char *);
466 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
467 extern long atol (const char *);
470 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
471 extern void free (void *);
474 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
475 extern char *getcwd (char *, size_t);
478 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
479 extern char *getenv (const char *);
482 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
483 extern int getopt (int, char * const *, const char *);
486 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
487 extern int getpagesize (void);
490 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
491 extern char *getwd (char *);
494 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
495 extern void *sbrk (int);
498 #if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
499 int setenv(const char *, const char *, int);
502 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
503 extern char *strstr (const char *, const char *);
506 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
507 extern char *stpcpy (char *, const char *);
510 #if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
511 int unsetenv(const char *);
514 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
515 extern void *malloc (size_t);
518 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
519 extern void *calloc (size_t, size_t);
522 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
523 extern void *realloc (void *, size_t);
534 #ifdef HAVE_INTTYPES_H
535 #include <inttypes.h>
539 # define SIZE_MAX INTTYPE_MAXIMUM (size_t)
546 /* If the system doesn't provide strsignal, we get it defined in
547 libiberty but no declaration is supplied. */
548 #if !defined (HAVE_STRSIGNAL) \
549 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
551 extern const char *strsignal (int);
555 #ifdef HAVE_GETRLIMIT
556 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
559 extern int getrlimit (int, struct rlimit
*);
564 #ifdef HAVE_SETRLIMIT
565 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
568 extern int setrlimit (int, const struct rlimit
*);
573 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
574 extern void abort (void);
577 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
578 extern int snprintf (char *, size_t, const char *, ...);
581 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
582 extern int vsnprintf (char *, size_t, const char *, va_list);
589 /* 1 if we have C99 designated initializers. */
590 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
592 #define HAVE_DESIGNATED_INITIALIZERS 0
594 #define HAVE_DESIGNATED_INITIALIZERS \
595 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
599 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
601 #define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
603 #define HAVE_DESIGNATED_UNION_INITIALIZERS \
604 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
609 # include <sys/stat.h>
612 /* Test if something is a normal file. */
614 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
617 /* Test if something is a directory. */
619 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
622 /* Test if something is a character special file. */
624 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
627 /* Test if something is a block special file. */
629 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
632 /* Test if something is a socket. */
635 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
637 # define S_ISSOCK(m) 0
641 /* Test if something is a FIFO. */
644 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
646 # define S_ISFIFO(m) 0
650 /* Define well known filenos if the system does not define them. */
652 # define STDIN_FILENO 0
654 #ifndef STDOUT_FILENO
655 # define STDOUT_FILENO 1
657 #ifndef STDERR_FILENO
658 # define STDERR_FILENO 2
661 /* Some systems have mkdir that takes a single argument. */
662 #ifdef MKDIR_TAKES_ONE_ARG
663 # define mkdir(a,b) mkdir (a)
667 # define kill(p,s) raise (s)
670 /* Provide a way to print an address via printf. */
671 #ifndef HOST_PTR_PRINTF
672 #define HOST_PTR_PRINTF "%p"
673 #endif /* ! HOST_PTR_PRINTF */
675 /* By default, colon separates directories in a path. */
676 #ifndef PATH_SEPARATOR
677 #define PATH_SEPARATOR ':'
680 /* Filename handling macros. */
681 #include "filenames.h"
683 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
684 #ifndef DIR_SEPARATOR
685 # define DIR_SEPARATOR '/'
686 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
687 # define DIR_SEPARATOR_2 '\\'
691 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
692 /* If plugin support is enabled, we could use libdl. */
696 /* Do not introduce a gmp.h dependency on the build system. */
697 #ifndef GENERATOR_FILE
701 /* Get libiberty declarations. */
702 #include "libiberty.h"
704 #undef FFS /* Some systems predefine this symbol; don't let it interfere. */
705 #undef FLOAT /* Likewise. */
706 #undef ABS /* Likewise. */
707 #undef PC /* Likewise. */
709 /* Provide a default for the HOST_BIT_BUCKET.
710 This suffices for POSIX-like hosts. */
712 #ifndef HOST_BIT_BUCKET
713 #define HOST_BIT_BUCKET "/dev/null"
717 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
720 /* Various error reporting routines want to use __FUNCTION__. */
721 #if (GCC_VERSION < 2007)
723 #define __FUNCTION__ "?"
724 #endif /* ! __FUNCTION__ */
727 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
728 the most likely value of A is B. This feature was added at some point
729 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
730 #if (GCC_VERSION < 3000)
731 #define __builtin_expect(a, b) (a)
734 /* Some of the headers included by <memory> can use "abort" within a
735 namespace, e.g. "_VSTD::abort();", which fails after we use the
736 preprocessor to redefine "abort" as "fancy_abort" below.
737 Given that unique-ptr.h can use "free", we need to do this after "free"
738 is declared but before "abort" is overridden. */
740 #ifdef INCLUDE_UNIQUE_PTR
741 # include "unique-ptr.h"
744 #ifdef INCLUDE_MALLOC_H
745 #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
752 #include <isl/options.h>
756 #include <isl/union_set.h>
758 #include <isl/union_map.h>
760 #include <isl/constraint.h>
761 #include <isl/flow.h>
763 #include <isl/schedule.h>
764 #include <isl/ast_build.h>
765 #include <isl/schedule_node.h>
767 #include <isl/space.h>
771 /* Redefine abort to report an internal error w/o coredump, and
772 reporting the location of the error in the source file. */
773 extern void fancy_abort (const char *, int, const char *)
774 ATTRIBUTE_NORETURN ATTRIBUTE_COLD
;
775 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
777 /* Use gcc_assert(EXPR) to test invariants. */
778 #if ENABLE_ASSERT_CHECKING
779 #define gcc_assert(EXPR) \
780 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
781 #elif (GCC_VERSION >= 4005)
782 #define gcc_assert(EXPR) \
783 ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
785 /* Include EXPR, so that unused variable warnings do not occur. */
786 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
790 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
792 /* N.B.: in release build EXPR is not evaluated. */
793 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
796 #if GCC_VERSION >= 4000
797 #define ALWAYS_INLINE inline __attribute__ ((always_inline))
799 #define ALWAYS_INLINE inline
802 #if GCC_VERSION >= 3004
803 #define WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
805 #define WARN_UNUSED_RESULT
808 /* Use gcc_unreachable() to mark unreachable locations (like an
809 unreachable default case of a switch. Do not use gcc_assert(0). */
810 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
811 #define gcc_unreachable() __builtin_unreachable ()
813 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
816 #if GCC_VERSION >= 7000 && defined(__has_attribute)
817 # if __has_attribute(fallthrough)
818 # define gcc_fallthrough() __attribute__((fallthrough))
820 # define gcc_fallthrough()
823 # define gcc_fallthrough()
826 #if GCC_VERSION >= 3001
827 #define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
829 #define STATIC_CONSTANT_P(X) (false && (X))
832 /* static_assert (COND, MESSAGE) is available in C++11 onwards. */
833 #if __cplusplus >= 201103L
834 #define STATIC_ASSERT(X) \
835 static_assert ((X), #X)
837 #define STATIC_ASSERT(X) \
838 typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
841 /* Provide a fake boolean type. We make no attempt to use the
842 C99 _Bool, as it may not be available in the bootstrap compiler,
843 and even if it is, it is liable to be buggy.
844 This must be after all inclusion of system headers, as some of
845 them will mess us up. */
854 #else /* !__cplusplus */
859 # define bool unsigned char
866 #endif /* !__cplusplus */
868 /* Some compilers do not allow the use of unsigned char in bitfields. */
869 #define BOOL_BITFIELD unsigned int
871 /* GCC older than 4.4 have broken C++ value initialization handling, see
872 PR11309, PR30111, PR33916, PR82939 and PR84405 for more details. */
873 #if GCC_VERSION > 0 && GCC_VERSION < 4004 && !defined(__clang__)
874 # define BROKEN_VALUE_INITIALIZATION
877 /* As the last action in this file, we poison the identifiers that
878 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
879 preprocessor won't trip on poisoned identifiers that arrive from
880 the expansion of macros. E.g. #define strrchr rindex, won't error
881 if rindex is poisoned after this directive is issued and later on
884 Note: We define bypass macros for the few cases where we really
885 want to use the libc memory allocation routines. Otherwise we
886 insist you use the "x" versions from libiberty. */
888 #define really_call_malloc malloc
889 #define really_call_calloc calloc
890 #define really_call_realloc realloc
892 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
893 /* Flex and bison use malloc and realloc. Yuk. Note that this means
894 really_call_* cannot be used in a .l or .y file. */
895 #define malloc xmalloc
896 #define realloc xrealloc
899 #if (GCC_VERSION >= 3000)
901 /* Note autoconf checks for prototype declarations and includes
902 system.h while doing so. Only poison these tokens if actually
903 compiling gcc, so that the autoconf declaration tests for malloc
904 etc don't spuriously fail. */
910 #pragma GCC poison calloc strdup strndup
912 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
915 #pragma GCC poison malloc realloc
918 /* The %m format should be used when GCC's main diagnostic functions
919 supporting %m are available, and xstrerror from libiberty
922 #pragma GCC poison strerror
924 /* loc_t is defined on some systems and too inviting for some
925 programmers to avoid. */
927 #pragma GCC poison loc_t
929 /* Old target macros that have moved to the target hooks structure. */
930 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
931 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
932 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
933 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
934 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
935 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
936 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
937 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
938 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
939 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
940 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
941 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
942 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
943 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
944 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
945 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
946 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
947 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
948 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
949 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
950 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
951 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
952 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
953 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
954 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
955 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
956 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
957 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
958 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
959 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
960 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
961 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
962 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
963 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
964 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
965 OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
966 ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
967 LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
968 CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
969 STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD \
970 HARD_REGNO_CALL_PART_CLOBBERED HARD_REGNO_MODE_OK \
971 MODES_TIEABLE_P FUNCTION_ARG_PADDING SLOW_UNALIGNED_ACCESS \
972 HARD_REGNO_NREGS SECONDARY_MEMORY_NEEDED_MODE \
973 SECONDARY_MEMORY_NEEDED CANNOT_CHANGE_MODE_CLASS \
974 TRULY_NOOP_TRUNCATION FUNCTION_ARG_OFFSET CONSTANT_ALIGNMENT \
975 STARTING_FRAME_OFFSET
977 /* Target macros only used for code built for the target, that have
978 moved to libgcc-tm.h or have never been present elsewhere. */
979 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
980 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
981 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
983 /* Other obsolete target macros, or macros that used to be in target
984 headers and were not used, and may be obsolete or may never have
986 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
987 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
988 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
989 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
990 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
991 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
992 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
993 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
994 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
995 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
996 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
997 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
998 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
999 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
1000 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
1001 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
1002 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
1003 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
1004 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
1005 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
1006 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
1007 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
1008 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
1009 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
1010 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
1011 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
1012 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
1013 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
1014 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
1015 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
1016 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
1017 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
1018 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
1019 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
1020 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
1021 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
1022 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
1023 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
1024 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
1025 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
1026 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
1027 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
1028 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
1029 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
1030 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
1031 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
1032 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
1033 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
1034 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
1035 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
1036 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
1037 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
1038 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
1039 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
1040 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
1041 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
1042 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
1043 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
1044 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
1045 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
1046 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
1047 LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
1048 IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \
1049 DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \
1050 REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
1051 TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
1052 IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
1053 UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
1054 USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
1055 CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
1056 GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
1057 ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
1058 REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
1059 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
1060 REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
1061 EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
1062 EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
1063 CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
1064 ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
1065 LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \
1066 EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \
1067 JCR_SECTION_NAME TARGET_USE_JCR_SECTION SDB_DEBUGGING_INFO \
1068 SDB_DEBUG NO_IMPLICIT_EXTERN_C
1070 /* Hooks that are no longer used. */
1071 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
1072 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
1073 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
1074 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
1075 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
1076 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
1077 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
1078 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
1079 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
1080 TARGET_IRA_COVER_CLASSES TARGET_HELP \
1081 TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
1082 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
1083 TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
1084 TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
1085 EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
1086 TARGET_INVALID_RETURN_TYPE
1088 /* Arrays that were deleted in favor of a functional interface. */
1089 #pragma GCC poison built_in_decls implicit_built_in_decls
1091 /* Hooks into libgcc2. */
1092 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
1093 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
1095 /* Miscellaneous macros that are no longer used. */
1096 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
1098 /* Libiberty macros that are no longer used in GCC. */
1099 #undef ANSI_PROTOTYPES
1107 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
1108 VA_FIXEDARG VA_CLOSE VA_START
1111 /* Front ends should never have to include middle-end headers. Enforce
1112 this by poisoning the header double-include protection defines. */
1113 #ifdef IN_GCC_FRONTEND
1114 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
1117 /* Note: not all uses of the `index' token (e.g. variable names and
1118 structure members) have been eliminated. */
1123 #pragma GCC poison bcopy bzero bcmp rindex
1125 /* Poison ENABLE_CHECKING macro that should be replaced with
1126 'if (flag_checking)', or with CHECKING_P macro. */
1127 #pragma GCC poison ENABLE_CHECKING
1129 #endif /* GCC >= 3.0 */
1131 /* This macro allows casting away const-ness to pass -Wcast-qual
1132 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
1133 only be used in certain specific cases. One valid case is where
1134 the C standard definitions or prototypes force you to. E.g. if you
1135 need to free a const object, or if you pass a const string to
1136 execv, et al. Another valid use would be in an allocation function
1137 that creates const objects that need to be initialized. In some
1138 cases we have non-const functions that return the argument
1139 (e.g. next_nonnote_insn). Rather than create const shadow
1140 functions, we can cast away const-ness in calling these interfaces
1141 if we're careful to verify that the called function does indeed not
1142 modify its argument and the return value is only used in a const
1143 context. (This can be somewhat dangerous as these assumptions can
1144 change after the fact). Beyond these uses, most other cases of
1145 using this macro should be viewed with extreme caution. */
1148 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
1150 #if defined(__GNUC__) && GCC_VERSION > 4000
1151 /* GCC 4.0.x has a bug where it may ICE on this expression,
1152 so does GCC 3.4.x (PR17436). */
1153 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
1154 #elif defined(__GNUC__)
1155 static inline char *
1156 helper_const_non_const_cast (const char *p
)
1159 const char *const_c
;
1166 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
1167 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
1169 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
1172 #define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
1173 #define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
1174 #define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
1175 #define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
1176 #define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
1177 #define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
1179 /* Activate certain diagnostics as warnings (not errors via the
1181 #if GCC_VERSION >= 4003
1182 /* If asserts are disabled, activate -Wuninitialized as a warning (not
1183 an error/-Werror). */
1184 #ifndef ENABLE_ASSERT_CHECKING
1185 #pragma GCC diagnostic warning "-Wuninitialized"
1189 #ifdef ENABLE_VALGRIND_ANNOTATIONS
1190 # ifdef HAVE_VALGRIND_MEMCHECK_H
1191 # include <valgrind/memcheck.h>
1192 # elif defined HAVE_MEMCHECK_H
1193 # include <memcheck.h>
1195 # include <valgrind.h>
1197 /* Compatibility macros to let valgrind 3.1 work. */
1198 # ifndef VALGRIND_MAKE_MEM_NOACCESS
1199 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
1201 # ifndef VALGRIND_MAKE_MEM_DEFINED
1202 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1204 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1205 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1208 /* Avoid #ifdef:s when we can help it. */
1209 #define VALGRIND_DISCARD(x)
1210 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1211 #define VALGRIND_FREELIKE_BLOCK(x,y)
1214 /* Macros to temporarily ignore some warnings. */
1215 #if GCC_VERSION >= 6000
1216 #define GCC_DIAGNOSTIC_STRINGIFY(x) #x
1217 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
1218 _Pragma ("GCC diagnostic push") \
1219 _Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
1220 #define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
1222 #define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
1223 #define GCC_DIAGNOSTIC_POP
1226 /* In LTO -fwhole-program build we still want to keep the debug functions available
1227 for debugger. Mark them as used to prevent removal. */
1228 #if (GCC_VERSION > 4000)
1229 #define DEBUG_FUNCTION __attribute__ ((__used__))
1230 #define DEBUG_VARIABLE __attribute__ ((__used__))
1232 #define DEBUG_FUNCTION
1233 #define DEBUG_VARIABLE
1236 /* General macro to extract bit Y of X. */
1237 #define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
1239 /* Get definitions of HOST_WIDE_INT. */
1242 typedef int sort_r_cmp_fn (const void *, const void *, void *);
1243 void qsort_chk (void *, size_t, size_t, sort_r_cmp_fn
*, void *);
1244 void gcc_sort_r (void *, size_t, size_t, sort_r_cmp_fn
*, void *);
1245 void gcc_qsort (void *, size_t, size_t, int (*)(const void *, const void *));
1246 void gcc_stablesort (void *, size_t, size_t,
1247 int (*)(const void *, const void *));
1248 /* Redirect four-argument qsort calls to gcc_qsort; one-argument invocations
1249 correspond to vec::qsort, and use C qsort internally. */
1250 #define PP_5th(a1, a2, a3, a4, a5, ...) a5
1252 #define qsort(...) PP_5th (__VA_ARGS__, gcc_qsort, 3, 2, qsort, 0) (__VA_ARGS__)
1255 #define ONE_M (ONE_K * ONE_K)
1256 #define ONE_G (ONE_K * ONE_M)
1258 /* Display a number as an integer multiple of either:
1259 - 1024, if said integer is >= to 10 K (in base 2)
1260 - 1024 * 1024, if said integer is >= 10 M in (base 2)
1262 #define SIZE_SCALE(x) (((x) < 10 * ONE_K \
1264 : ((x) < 10 * ONE_M \
1268 /* For a given integer, display either:
1269 - the character 'k', if the number is higher than 10 K (in base 2)
1270 but strictly lower than 10 M (in base 2)
1271 - the character 'M' if the number is higher than 10 M (in base2)
1272 - the charcter ' ' if the number is strictly lower than 10 K */
1273 #define SIZE_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
1275 /* Display an integer amount as multiple of 1K or 1M (in base 2).
1276 Display the correct unit (either k, M, or ' ') after the amount, as
1278 #define SIZE_AMOUNT(size) (uint64_t)SIZE_SCALE (size), SIZE_LABEL (size)
1280 /* Format string particle for printing a SIZE_AMOUNT with N being the width
1282 #define PRsa(n) "%" #n PRIu64 "%c"
1284 /* System headers may define NULL to be an integer (e.g. 0L), which cannot be
1285 used safely in certain contexts (e.g. as sentinels). Redefine NULL to
1286 nullptr in order to make it safer. Note that this might confuse system
1287 headers, however, by convention they must not be included after this point.
1291 #define NULL nullptr
1294 #endif /* ! GCC_SYSTEM_H */