425 lines
11 KiB
C
425 lines
11 KiB
C
/* Get common system includes and various definitions and declarations based
|
|
on autoconf macros.
|
|
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009
|
|
Free Software Foundation, Inc.
|
|
|
|
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 3, or (at your option) any later
|
|
version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GCC; see the file COPYING3. If not see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
#ifndef LIBCPP_SYSTEM_H
|
|
#define LIBCPP_SYSTEM_H
|
|
|
|
/* We must include stdarg.h before stdio.h. */
|
|
#include <stdarg.h>
|
|
|
|
#ifdef HAVE_STDDEF_H
|
|
# include <stddef.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
/* Define a generic NULL if one hasn't already been defined. */
|
|
#ifndef NULL
|
|
#define NULL 0
|
|
#endif
|
|
|
|
/* Use the unlocked open routines from libiberty. */
|
|
#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
|
|
I/O bound conditions (such as -g -O0 on very large source files).
|
|
|
|
HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
|
|
code is multi-thread safe by default. If it is set to 0, then do
|
|
not worry about using the _unlocked functions.
|
|
|
|
fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
|
|
extensions and need to be prototyped by hand (since we do not
|
|
define _GNU_SOURCE). */
|
|
|
|
#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
|
|
|
|
# ifdef HAVE_PUTC_UNLOCKED
|
|
# 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 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)
|
|
# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
|
|
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 size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
|
|
# endif
|
|
# endif
|
|
# ifdef HAVE_FPRINTF_UNLOCKED
|
|
# undef fprintf
|
|
/* We can't use a function-like macro here because we don't know if
|
|
we have varargs macros. */
|
|
# define fprintf fprintf_unlocked
|
|
# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
|
|
extern int fprintf_unlocked (FILE *, const char *, ...);
|
|
# endif
|
|
# endif
|
|
|
|
#endif
|
|
|
|
/* ??? Glibc's fwrite/fread_unlocked macros cause
|
|
"warning: signed and unsigned type in conditional expression". */
|
|
#undef fread_unlocked
|
|
#undef fwrite_unlocked
|
|
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
|
|
#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
|
|
extern int errno;
|
|
#endif
|
|
|
|
/* Some of glibc's string inlines cause warnings. Plus we'd rather
|
|
rely on (and therefore test) GCC's string builtins. */
|
|
#define __NO_STRING_INLINES
|
|
|
|
#ifdef STRING_WITH_STRINGS
|
|
# include <string.h>
|
|
# include <strings.h>
|
|
#else
|
|
# ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
# else
|
|
# ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#if HAVE_LIMITS_H
|
|
# include <limits.h>
|
|
#endif
|
|
|
|
/* Infrastructure for defining missing _MAX and _MIN macros. Note that
|
|
macros defined with these cannot be used in #if. */
|
|
|
|
/* The extra casts work around common compiler bugs. */
|
|
#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
|
|
/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
|
|
It is necessary at least when t == time_t. */
|
|
#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
|
|
? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
|
|
#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
|
|
|
|
/* Use that infrastructure to provide a few constants. */
|
|
#ifndef UCHAR_MAX
|
|
# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
|
|
#endif
|
|
|
|
#ifdef TIME_WITH_SYS_TIME
|
|
# include <sys/time.h>
|
|
# include <time.h>
|
|
#else
|
|
# if HAVE_SYS_TIME_H
|
|
# include <sys/time.h>
|
|
# else
|
|
# ifdef HAVE_TIME_H
|
|
# include <time.h>
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef HAVE_FCNTL_H
|
|
# include <fcntl.h>
|
|
#else
|
|
# ifdef HAVE_SYS_FILE_H
|
|
# include <sys/file.h>
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef HAVE_LOCALE_H
|
|
# include <locale.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LANGINFO_CODESET
|
|
# include <langinfo.h>
|
|
#endif
|
|
|
|
#ifndef HAVE_SETLOCALE
|
|
# define setlocale(category, locale) (locale)
|
|
#endif
|
|
|
|
#ifdef ENABLE_NLS
|
|
#include <libintl.h>
|
|
#else
|
|
/* Stubs. */
|
|
# undef dgettext
|
|
# define dgettext(package, msgid) (msgid)
|
|
#endif
|
|
|
|
#ifndef _
|
|
# define _(msgid) dgettext (PACKAGE, msgid)
|
|
#endif
|
|
|
|
#ifndef N_
|
|
# define N_(msgid) msgid
|
|
#endif
|
|
|
|
/* Some systems define these in, e.g., param.h. We undefine these names
|
|
here to avoid the warnings. We prefer to use our definitions since we
|
|
know they are correct. */
|
|
|
|
#undef MIN
|
|
#undef MAX
|
|
#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
|
|
#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
|
|
|
|
/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
|
|
are defined to 0 then we must provide the relevant declaration
|
|
here. These checks will be in the undefined state while configure
|
|
is running so be careful to test "defined (HAVE_DECL_*)". */
|
|
|
|
#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
|
|
extern void abort (void);
|
|
#endif
|
|
|
|
#if HAVE_SYS_STAT_H
|
|
# include <sys/stat.h>
|
|
#endif
|
|
|
|
/* Test if something is a normal file. */
|
|
#ifndef S_ISREG
|
|
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
|
|
#endif
|
|
|
|
/* Test if something is a directory. */
|
|
#ifndef S_ISDIR
|
|
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
|
|
#endif
|
|
|
|
/* Test if something is a character special file. */
|
|
#ifndef S_ISCHR
|
|
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
|
|
#endif
|
|
|
|
/* Test if something is a block special file. */
|
|
#ifndef S_ISBLK
|
|
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
|
|
#endif
|
|
|
|
/* Test if something is a socket. */
|
|
#ifndef S_ISSOCK
|
|
# ifdef S_IFSOCK
|
|
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
|
|
# else
|
|
# define S_ISSOCK(m) 0
|
|
# endif
|
|
#endif
|
|
|
|
/* Test if something is a FIFO. */
|
|
#ifndef S_ISFIFO
|
|
# ifdef S_IFIFO
|
|
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
|
|
# else
|
|
# define S_ISFIFO(m) 0
|
|
# endif
|
|
#endif
|
|
|
|
/* Approximate O_NOCTTY and O_BINARY. */
|
|
#ifndef O_NOCTTY
|
|
#define O_NOCTTY 0
|
|
#endif
|
|
#ifndef O_BINARY
|
|
# define O_BINARY 0
|
|
#endif
|
|
|
|
/* Filename handling macros. */
|
|
#include "filenames.h"
|
|
|
|
/* Get libiberty declarations. */
|
|
#include "libiberty.h"
|
|
#include "safe-ctype.h"
|
|
|
|
/* 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 \
|
|
((!defined(__cplusplus) && (GCC_VERSION >= 2007)) \
|
|
|| (__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
|
|
|
|
#ifndef offsetof
|
|
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
|
|
#endif
|
|
|
|
/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
|
|
the most likely value of A is B. This feature was added at some point
|
|
between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
|
|
#if (GCC_VERSION < 3000)
|
|
#define __builtin_expect(a, b) (a)
|
|
#endif
|
|
|
|
/* 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
|
|
|
|
#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
|
|
#undef malloc
|
|
#undef realloc
|
|
#pragma GCC poison calloc strdup
|
|
#pragma GCC poison malloc realloc
|
|
|
|
/* Libiberty macros that are no longer used in GCC. */
|
|
#undef ANSI_PROTOTYPES
|
|
#undef PTR_CONST
|
|
#undef LONG_DOUBLE
|
|
#undef VPARAMS
|
|
#undef VA_OPEN
|
|
#undef VA_FIXEDARG
|
|
#undef VA_CLOSE
|
|
#undef VA_START
|
|
#pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
|
|
VA_FIXEDARG VA_CLOSE VA_START
|
|
|
|
/* Note: not all uses of the `index' token (e.g. variable names and
|
|
structure members) have been eliminated. */
|
|
#undef bcopy
|
|
#undef bzero
|
|
#undef bcmp
|
|
#undef rindex
|
|
#pragma GCC poison bcopy bzero bcmp rindex
|
|
|
|
#endif /* GCC >= 3.0 */
|
|
#endif /* ! LIBCPP_SYSTEM_H */
|