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/* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#ifndef _LIBC_INTERNAL_H

#define _LIBC_INTERNAL_H 1

#include <features.h>

#ifdef __UCLIBC_BUILD_RELRO__

# define attribute_relro __attribute__ ((section (".data.rel.ro")))

#else

# define attribute_relro

#endif

#ifdef __UCLIBC_HAS_THREADS_NATIVE__

# define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec")))

#endif

/* Pull in things like __attribute_used__ */

#include <sys/cdefs.h>

/* --- this is added to integrate linuxthreads */

/*#define __USE_UNIX98            1*/

#ifndef __ASSEMBLER__

# ifdef IS_IN_libc

#  define __need_size_t

#  include <stddef.h>

/* sources are built w/ _GNU_SOURCE, this gets undefined */

#ifdef __USE_GNU

extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen);

#else

extern char *__glibc_strerror_r (int __errnum, char *__buf, size_t __buflen);

#endif

/* #include <pthread.h> */

#  ifndef __UCLIBC_HAS_THREADS__

#   define __pthread_mutex_init(mutex, mutexattr)         ((void)0)

#   define __pthread_mutex_lock(mutex)                    ((void)0)

#   define __pthread_mutex_trylock(mutex)                 ((void)0)

#   define __pthread_mutex_unlock(mutex)                  ((void)0)

#   define _pthread_cleanup_push_defer(mutex)             ((void)0)

#   define _pthread_cleanup_pop_restore(mutex)            ((void)0)

#  endif

/* internal access to program name */

extern const char *__uclibc_progname attribute_hidden;

# endif /* IS_IN_libc */

/* #include <alloca.h> */

#include <bits/stackinfo.h>

#if defined(_STACK_GROWS_DOWN)

# define extend_alloca(buf, len, newlen) \

  (__typeof (buf)) ({ size_t __newlen = (newlen);                             \

                      char *__newbuf = alloca (__newlen);                     \

                      if (__newbuf + __newlen == (char *) buf)                \

                        len += __newlen;                                      \

                      else                                                    \

                        len = __newlen;                                       \

                      __newbuf; })

#elif defined(_STACK_GROWS_UP)

# define extend_alloca(buf, len, newlen) \

  (__typeof (buf)) ({ size_t __newlen = (newlen);                             \

                      char *__newbuf = alloca (__newlen);                     \

                      char *__buf = (buf);                                    \

                      if (__buf + __newlen == __newbuf)                       \

                        {                                                     \

                          len += __newlen;                                    \

                          __newbuf = __buf;                                   \

                        }                                                     \

                      else                                                    \

                        len = __newlen;                                       \

                      __newbuf; })

#else

# warning unknown stack

# define extend_alloca(buf, len, newlen) \

  alloca (((len) = (newlen)))

#endif

#endif /* __ASSEMBLER__ */

#endif /* _LIBC_INTERNAL_H */