include/libc-internal.h

   1 /* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _LIBC_INTERNAL_H
  20 #define _LIBC_INTERNAL_H 1
  21
  22 #include <features.h>
  23
  24 #ifdef __UCLIBC_BUILD_RELRO__
  25 # define attribute_relro __attribute__ ((section (".data.rel.ro")))
  26 #else
  27 # define attribute_relro
  28 #endif
  29
  30 #ifdef __UCLIBC_HAS_TLS__
  31 # define attribute_tls_model_ie __attribute__ ((tls_model ("initial-exec")))
  32 #endif
  33
  34 /* Pull in things like __attribute_used__ */
  35 #include <sys/cdefs.h>
  36
  37 /* --- this is added to integrate linuxthreads */
  38 /*#define __USE_UNIX98            1*/
  39
  40 #ifndef __ASSEMBLER__
  41 # ifdef IS_IN_libc
  42
  43 #  define __need_size_t
  44 #  include <stddef.h>
  45
  46 /* sources are built w/ _GNU_SOURCE, this gets undefined */
  47 #ifdef __USE_GNU
  48 extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen);
  49 libc_hidden_proto(__xpg_strerror_r)
  50 #else
  51 extern char *__glibc_strerror_r (int __errnum, char *__buf, size_t __buflen);
  52 libc_hidden_proto(__glibc_strerror_r)
  53 #endif
  54
  55 /* #include <pthread.h> */
  56 #  ifndef __UCLIBC_HAS_THREADS__
  57 #   define __pthread_mutex_init(mutex, mutexattr)         ((void)0)
  58 #   define __pthread_mutex_lock(mutex)                    ((void)0)
  59 #   define __pthread_mutex_trylock(mutex)                 ((void)0)
  60 #   define __pthread_mutex_unlock(mutex)                  ((void)0)
  61 #   define _pthread_cleanup_push_defer(mutex)             ((void)0)
  62 #   define _pthread_cleanup_pop_restore(mutex)            ((void)0)
  63 #  endif
  64
  65 /* internal access to program name */
  66 extern const char *__uclibc_progname attribute_hidden;
  67
  68 #  ifdef __UCLIBC_HAS_FORTIFY__
  69 extern void __chk_fail(void) attribute_noreturn;
  70 libc_hidden_proto(__chk_fail)
  71 #  endif
  72
  73 # endif /* IS_IN_libc */
  74
  75 #endif /* __ASSEMBLER__ */
  76
  77 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
  78
  79 /* Some people like to build up uClibc with *-elf toolchains, so
  80  * a little grease here until we drop '#ifdef __linux__' checks
  81  * from our source code.
  82  */
  83 #ifndef __linux__
  84 # define __linux__ 1
  85 #endif
  86
  87 #endif /* _LIBC_INTERNAL_H */