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jeremybenn |
/* Get common system includes and various definitions and declarations based
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on autoconf macros.
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Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010, 2011
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef LIBCPP_SYSTEM_H
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#define LIBCPP_SYSTEM_H
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/* We must include stdarg.h before stdio.h. */
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#include <stdarg.h>
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#endif
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#endif
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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#include <stdio.h>
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/* Define a generic NULL if one hasn't already been defined. */
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#ifndef NULL
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#define NULL 0
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#endif
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/* Use the unlocked open routines from libiberty. */
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/* Some of these are #define on some systems, e.g. on AIX to redirect
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the names to 64bit capable functions for LARGE_FILES support. These
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redefs are pointless here so we can override them. */
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#undef fopen
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#undef freopen
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#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
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#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
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#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
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/* The compiler is not a multi-threaded application and therefore we
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do not have to use the locking functions. In fact, using the locking
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functions can cause the compiler to be significantly slower under
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I/O bound conditions (such as -g -O0 on very large source files).
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HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
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code is multi-thread safe by default. If it is set to 0, then do
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not worry about using the _unlocked functions.
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fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
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extensions and need to be prototyped by hand (since we do not
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define _GNU_SOURCE). */
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#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
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# ifdef HAVE_PUTC_UNLOCKED
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# undef putc
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# define putc(C, Stream) putc_unlocked (C, Stream)
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# endif
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# ifdef HAVE_PUTCHAR_UNLOCKED
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# undef putchar
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# define putchar(C) putchar_unlocked (C)
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# endif
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# ifdef HAVE_GETC_UNLOCKED
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# undef getc
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# define getc(Stream) getc_unlocked (Stream)
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# endif
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# ifdef HAVE_GETCHAR_UNLOCKED
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# undef getchar
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# define getchar() getchar_unlocked ()
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# endif
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# ifdef HAVE_FPUTC_UNLOCKED
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# undef fputc
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# define fputc(C, Stream) fputc_unlocked (C, Stream)
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# endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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# ifdef HAVE_CLEARERR_UNLOCKED
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# undef clearerr
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# define clearerr(Stream) clearerr_unlocked (Stream)
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# if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
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extern void clearerr_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FEOF_UNLOCKED
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# undef feof
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# define feof(Stream) feof_unlocked (Stream)
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# if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
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extern int feof_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FILENO_UNLOCKED
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# undef fileno
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# define fileno(Stream) fileno_unlocked (Stream)
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# if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
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extern int fileno_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FFLUSH_UNLOCKED
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# undef fflush
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# define fflush(Stream) fflush_unlocked (Stream)
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# if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
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extern int fflush_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FGETC_UNLOCKED
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# undef fgetc
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# define fgetc(Stream) fgetc_unlocked (Stream)
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# if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
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extern int fgetc_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FGETS_UNLOCKED
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# undef fgets
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# define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
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# if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
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extern char *fgets_unlocked (char *, int, FILE *);
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# endif
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# endif
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# ifdef HAVE_FPUTS_UNLOCKED
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# undef fputs
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# define fputs(String, Stream) fputs_unlocked (String, Stream)
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# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
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extern int fputs_unlocked (const char *, FILE *);
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# endif
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# endif
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# ifdef HAVE_FERROR_UNLOCKED
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# undef ferror
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# define ferror(Stream) ferror_unlocked (Stream)
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# if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
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extern int ferror_unlocked (FILE *);
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# endif
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# endif
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# ifdef HAVE_FREAD_UNLOCKED
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# undef fread
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# define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
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# if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
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extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
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# endif
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# endif
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# ifdef HAVE_FWRITE_UNLOCKED
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# undef fwrite
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# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
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# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
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extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
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# endif
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# endif
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# ifdef HAVE_FPRINTF_UNLOCKED
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# undef fprintf
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/* We can't use a function-like macro here because we don't know if
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we have varargs macros. */
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# define fprintf fprintf_unlocked
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# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
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extern int fprintf_unlocked (FILE *, const char *, ...);
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# endif
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# endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* ??? Glibc's fwrite/fread_unlocked macros cause
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"warning: signed and unsigned type in conditional expression". */
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#undef fread_unlocked
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#undef fwrite_unlocked
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#include <sys/types.h>
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#include <errno.h>
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#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
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extern int errno;
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#endif
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/* Some of glibc's string inlines cause warnings. Plus we'd rather
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rely on (and therefore test) GCC's string builtins. */
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#define __NO_STRING_INLINES
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#ifdef STRING_WITH_STRINGS
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# include <string.h>
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# include <strings.h>
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#else
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# ifdef HAVE_STRING_H
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# include <string.h>
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# else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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# endif
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#endif
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if HAVE_LIMITS_H
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# include <limits.h>
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#endif
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/* Infrastructure for defining missing _MAX and _MIN macros. Note that
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macros defined with these cannot be used in #if. */
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/* The extra casts work around common compiler bugs. */
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#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
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/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
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It is necessary at least when t == time_t. */
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#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
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? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
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#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
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/* Use that infrastructure to provide a few constants. */
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#ifndef UCHAR_MAX
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# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
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#endif
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# if HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# ifdef HAVE_TIME_H
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# include <time.h>
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# endif
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# endif
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#endif
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#ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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#else
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# ifdef HAVE_SYS_FILE_H
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# include <sys/file.h>
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# endif
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#endif
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#ifdef HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#ifdef HAVE_LANGINFO_CODESET
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# include <langinfo.h>
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#endif
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#ifndef HAVE_SETLOCALE
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# define setlocale(category, locale) (locale)
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#endif
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#ifdef ENABLE_NLS
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#include <libintl.h>
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#else
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/* Stubs. */
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# undef dgettext
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# define dgettext(package, msgid) (msgid)
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#endif
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#ifndef _
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# define _(msgid) dgettext (PACKAGE, msgid)
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#endif
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#ifndef N_
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# define N_(msgid) msgid
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#endif
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/* Some systems define these in, e.g., param.h. We undefine these names
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here to avoid the warnings. We prefer to use our definitions since we
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know they are correct. */
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#undef MIN
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#undef MAX
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#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
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#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
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/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
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are defined to 0 then we must provide the relevant declaration
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here. These checks will be in the undefined state while configure
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is running so be careful to test "defined (HAVE_DECL_*)". */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
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extern void abort (void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#if HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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/* Test if something is a normal file. */
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#ifndef S_ISREG
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#endif
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/* Test if something is a directory. */
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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/* Test if something is a character special file. */
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#ifndef S_ISCHR
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#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
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#endif
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/* Test if something is a block special file. */
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#ifndef S_ISBLK
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#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
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#endif
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/* Test if something is a socket. */
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342 |
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#ifndef S_ISSOCK
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# ifdef S_IFSOCK
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# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
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# else
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# define S_ISSOCK(m) 0
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# endif
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#endif
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349 |
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/* Test if something is a FIFO. */
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351 |
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#ifndef S_ISFIFO
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# ifdef S_IFIFO
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# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
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# else
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# define S_ISFIFO(m) 0
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# endif
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357 |
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#endif
|
358 |
|
|
|
359 |
|
|
/* Approximate O_NOCTTY and O_BINARY. */
|
360 |
|
|
#ifndef O_NOCTTY
|
361 |
|
|
#define O_NOCTTY 0
|
362 |
|
|
#endif
|
363 |
|
|
#ifndef O_BINARY
|
364 |
|
|
# define O_BINARY 0
|
365 |
|
|
#endif
|
366 |
|
|
|
367 |
|
|
/* Filename handling macros. */
|
368 |
|
|
#include "filenames.h"
|
369 |
|
|
|
370 |
|
|
/* Get libiberty declarations. */
|
371 |
|
|
#include "libiberty.h"
|
372 |
|
|
#include "safe-ctype.h"
|
373 |
|
|
|
374 |
|
|
/* 1 if we have C99 designated initializers.
|
375 |
|
|
|
376 |
|
|
??? C99 designated initializers are not supported by most C++
|
377 |
|
|
compilers, including G++. -- gdr, 2005-05-18 */
|
378 |
|
|
#if !defined(HAVE_DESIGNATED_INITIALIZERS)
|
379 |
|
|
#define HAVE_DESIGNATED_INITIALIZERS \
|
380 |
|
|
(!defined(__cplusplus) \
|
381 |
|
|
&& ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)))
|
382 |
|
|
#endif
|
383 |
|
|
|
384 |
|
|
#ifndef offsetof
|
385 |
|
|
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
|
386 |
|
|
#endif
|
387 |
|
|
|
388 |
|
|
/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
|
389 |
|
|
the most likely value of A is B. This feature was added at some point
|
390 |
|
|
between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
|
391 |
|
|
#if (GCC_VERSION < 3000)
|
392 |
|
|
#define __builtin_expect(a, b) (a)
|
393 |
|
|
#endif
|
394 |
|
|
|
395 |
|
|
/* Provide a fake boolean type. We make no attempt to use the
|
396 |
|
|
C99 _Bool, as it may not be available in the bootstrap compiler,
|
397 |
|
|
and even if it is, it is liable to be buggy.
|
398 |
|
|
This must be after all inclusion of system headers, as some of
|
399 |
|
|
them will mess us up. */
|
400 |
|
|
#undef bool
|
401 |
|
|
#undef true
|
402 |
|
|
#undef false
|
403 |
|
|
#undef TRUE
|
404 |
|
|
#undef FALSE
|
405 |
|
|
|
406 |
|
|
#ifndef __cplusplus
|
407 |
|
|
#define bool unsigned char
|
408 |
|
|
#endif
|
409 |
|
|
#define true 1
|
410 |
|
|
#define false 0
|
411 |
|
|
|
412 |
|
|
/* Some compilers do not allow the use of unsigned char in bitfields. */
|
413 |
|
|
#define BOOL_BITFIELD unsigned int
|
414 |
|
|
|
415 |
|
|
/* Poison identifiers we do not want to use. */
|
416 |
|
|
#if (GCC_VERSION >= 3000)
|
417 |
|
|
#undef calloc
|
418 |
|
|
#undef strdup
|
419 |
|
|
#undef malloc
|
420 |
|
|
#undef realloc
|
421 |
|
|
#pragma GCC poison calloc strdup
|
422 |
|
|
#pragma GCC poison malloc realloc
|
423 |
|
|
|
424 |
|
|
/* Libiberty macros that are no longer used in GCC. */
|
425 |
|
|
#undef ANSI_PROTOTYPES
|
426 |
|
|
#undef PTR_CONST
|
427 |
|
|
#undef LONG_DOUBLE
|
428 |
|
|
#undef VPARAMS
|
429 |
|
|
#undef VA_OPEN
|
430 |
|
|
#undef VA_FIXEDARG
|
431 |
|
|
#undef VA_CLOSE
|
432 |
|
|
#undef VA_START
|
433 |
|
|
#pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
|
434 |
|
|
VA_FIXEDARG VA_CLOSE VA_START
|
435 |
|
|
|
436 |
|
|
/* Note: not all uses of the `index' token (e.g. variable names and
|
437 |
|
|
structure members) have been eliminated. */
|
438 |
|
|
#undef bcopy
|
439 |
|
|
#undef bzero
|
440 |
|
|
#undef bcmp
|
441 |
|
|
#undef rindex
|
442 |
|
|
#pragma GCC poison bcopy bzero bcmp rindex
|
443 |
|
|
|
444 |
|
|
#endif /* GCC >= 3.0 */
|
445 |
|
|
#endif /* ! LIBCPP_SYSTEM_H */
|