/* Get common system includes and various definitions and declarations based
on autoconf macros.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010, 2011
Free Software Foundation, Inc.
-This file is part of libcpp (aka cpplib).
+This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef LIBCPP_SYSTEM_H
#ifdef HAVE_STDDEF_H
# include <stddef.h>
#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
#include <stdio.h>
#define NULL 0
#endif
+/* Use the unlocked open routines from libiberty. */
+
+/* Some of these are #define on some systems, e.g. on AIX to redirect
+ the names to 64bit capable functions for LARGE_FILES support. These
+ redefs are pointless here so we can override them. */
+
+#undef fopen
+#undef freopen
+
+#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
+#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
+#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
+
/* The compiler is not a multi-threaded application and therefore we
do not have to use the locking functions. In fact, using the locking
functions can cause the compiler to be significantly slower under
# undef putc
# define putc(C, Stream) putc_unlocked (C, Stream)
# endif
+# ifdef HAVE_PUTCHAR_UNLOCKED
+# undef putchar
+# define putchar(C) putchar_unlocked (C)
+# endif
+# ifdef HAVE_GETC_UNLOCKED
+# undef getc
+# define getc(Stream) getc_unlocked (Stream)
+# endif
+# ifdef HAVE_GETCHAR_UNLOCKED
+# undef getchar
+# define getchar() getchar_unlocked ()
+# endif
# ifdef HAVE_FPUTC_UNLOCKED
# undef fputc
# define fputc(C, Stream) fputc_unlocked (C, Stream)
# endif
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+# ifdef HAVE_CLEARERR_UNLOCKED
+# undef clearerr
+# define clearerr(Stream) clearerr_unlocked (Stream)
+# if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
+extern void clearerr_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FEOF_UNLOCKED
+# undef feof
+# define feof(Stream) feof_unlocked (Stream)
+# if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
+extern int feof_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FILENO_UNLOCKED
+# undef fileno
+# define fileno(Stream) fileno_unlocked (Stream)
+# if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
+extern int fileno_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FFLUSH_UNLOCKED
+# undef fflush
+# define fflush(Stream) fflush_unlocked (Stream)
+# if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
+extern int fflush_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FGETC_UNLOCKED
+# undef fgetc
+# define fgetc(Stream) fgetc_unlocked (Stream)
+# if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
+extern int fgetc_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FGETS_UNLOCKED
+# undef fgets
+# define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
+# if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
+extern char *fgets_unlocked (char *, int, FILE *);
+# endif
+# endif
# ifdef HAVE_FPUTS_UNLOCKED
# undef fputs
# define fputs(String, Stream) fputs_unlocked (String, Stream)
extern int fputs_unlocked (const char *, FILE *);
# endif
# endif
+# ifdef HAVE_FERROR_UNLOCKED
+# undef ferror
+# define ferror(Stream) ferror_unlocked (Stream)
+# if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
+extern int ferror_unlocked (FILE *);
+# endif
+# endif
+# ifdef HAVE_FREAD_UNLOCKED
+# undef fread
+# define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
+# if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
+extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
+# endif
+# endif
# ifdef HAVE_FWRITE_UNLOCKED
# undef fwrite
# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
-extern int fwrite_unlocked (const void *, size_t, size_t, FILE *);
+extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
# endif
# endif
# ifdef HAVE_FPRINTF_UNLOCKED
# endif
# endif
+#ifdef __cplusplus
+}
+#endif
+
#endif
/* ??? Glibc's fwrite/fread_unlocked macros cause
#else
/* Stubs. */
# undef dgettext
-# define dgettext(msgid) (msgid)
+# define dgettext(package, msgid) (msgid)
#endif
#ifndef _
here. These checks will be in the undefined state while configure
is running so be careful to test "defined (HAVE_DECL_*)". */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
extern void abort (void);
#endif
+#ifdef __cplusplus
+}
+#endif
+
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include "libiberty.h"
#include "safe-ctype.h"
-/* 1 if we have C99 designated initializers. */
+/* 1 if we have C99 designated initializers.
+
+ ??? C99 designated initializers are not supported by most C++
+ compilers, including G++. -- gdr, 2005-05-18 */
#if !defined(HAVE_DESIGNATED_INITIALIZERS)
#define HAVE_DESIGNATED_INITIALIZERS \
- ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
-#endif
-
-/* 1 if we have _Bool. */
-#ifndef HAVE__BOOL
-# define HAVE__BOOL \
- ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L))
-#endif
-
-
-/* Be conservative and only use enum bitfields with GCC.
- FIXME: provide a complete autoconf test for buggy enum bitfields. */
-
-#if (GCC_VERSION > 2000)
-#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
-#else
-#define ENUM_BITFIELD(TYPE) unsigned int
-#endif
-
-/* We only use bool bitfields with gcc3. Some supposedly C99
- compilers don't handle them correctly. */
-#if (GCC_VERSION >= 3000)
-#define BOOL_BITFIELD _Bool
-#else
-#define BOOL_BITFIELD unsigned int
+ (!defined(__cplusplus) \
+ && ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)))
#endif
#ifndef offsetof
#define __builtin_expect(a, b) (a)
#endif
-/* Provide some sort of boolean type. We use stdbool.h if it's
- available. This must be after all inclusion of system headers,
- as some of them will mess us up. */
+/* Provide a fake boolean type. We make no attempt to use the
+ C99 _Bool, as it may not be available in the bootstrap compiler,
+ and even if it is, it is liable to be buggy.
+ This must be after all inclusion of system headers, as some of
+ them will mess us up. */
#undef bool
#undef true
#undef false
#undef TRUE
#undef FALSE
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#else
-# if !HAVE__BOOL
-typedef char _Bool;
-# endif
-# define bool _Bool
-# define true 1
-# define false 0
+#ifndef __cplusplus
+#define bool unsigned char
#endif
+#define true 1
+#define false 0
+/* Some compilers do not allow the use of unsigned char in bitfields. */
+#define BOOL_BITFIELD unsigned int
+
+/* Poison identifiers we do not want to use. */
#if (GCC_VERSION >= 3000)
#undef calloc
#undef strdup
#pragma GCC poison bcopy bzero bcmp rindex
#endif /* GCC >= 3.0 */
-
#endif /* ! LIBCPP_SYSTEM_H */
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