blob: 60df5242ce2a4a0a6b6bc089ba7a49ab937e7074 [file] [log] [blame]
/* Get common system includes and various definitions and declarations
based on target macros.
Copyright (C) 2000, 2001, 2004, 2005, 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
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<>. */
/* System headers (e.g. stdio.h, stdlib.h, unistd.h) sometimes
indirectly include getopt.h. Our -I flags will cause gcc's gnu
getopt.h to be included, not the platform's copy. In the default
case, gnu getopt.h will provide us with a no-argument prototype
which will generate -Wstrict-prototypes warnings. None of the
target files actually use getopt, so it is safe to tell gnu
getopt.h we never need this prototype. */
/* We want everything from the glibc headers. */
#define _GNU_SOURCE 1
/* GCC supplies these headers. */
#include <stddef.h>
#include <float.h>
#ifdef inhibit_libc
#ifndef malloc
extern void *malloc (size_t);
#ifndef free
extern void free (void *);
#ifndef atexit
extern int atexit (void (*)(void));
#ifndef abort
extern void abort (void) __attribute__ ((__noreturn__));
#ifndef strlen
extern size_t strlen (const char *);
#ifndef memcpy
extern void *memcpy (void *, const void *, size_t);
#ifndef memset
extern void *memset (void *, int, size_t);
#else /* ! inhibit_libc */
/* We disable this when inhibit_libc, so that gcc can still be built without
needing header files first. */
/* ??? This is not a good solution, since prototypes may be required in
some cases for correct code. */
/* GCC supplies this header. */
#include <stdarg.h>
/* All systems have this header. */
#include <stdio.h>
/* All systems have this header. */
#include <sys/types.h>
/* All systems have this header. */
#include <errno.h>
#ifndef errno
extern int errno;
/* GCC (fixproto) guarantees these system headers exist. */
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
/* GCC supplies this header. */
#include <limits.h>
/* GCC (fixproto) guarantees this system headers exists. */
#include <time.h>
#endif /* inhibit_libc */
/* Define a generic NULL if one hasn't already been defined. */
#ifndef NULL
#define NULL 0
/* GCC always provides __builtin_alloca(x). */
#undef alloca
#define alloca(x) __builtin_alloca(x)
#define gcc_assert(EXPR) ((void)(!(EXPR) ? abort (), 0 : 0))
/* Include EXPR, so that unused variable warnings do not occur. */
#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
/* Use gcc_unreachable() to mark unreachable locations (like an
unreachable default case of a switch. Do not use gcc_assert(0). */
#define gcc_unreachable() (abort ())
/* Filename handling macros. */
#include "filenames.h"
#endif /* ! GCC_TSYSTEM_H */