uclibc-ng/libpthread/linuxthreads/errno.c

/* Linuxthreads - a simple clone()-based implementation of Posix        */
/* threads for Linux.                                                   */
/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
/*                                                                      */
/* This program is free software; you can redistribute it and/or        */
/* modify it under the terms of the GNU Library General Public License  */
/* as published by the Free Software Foundation; either version 2       */
/* of the License, or (at your option) any later version.               */
/*                                                                      */
/* This program 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 Library General Public License for more details.                 */

/* Define the location of errno for the remainder of the C library */

#define __FORCE_GLIBC
#include <features.h>
#include <errno.h>
#include <netdb.h>
#include "pthread.h"
#include "internals.h"
#include <stdio.h>
extern int _errno;
extern int _h_errno;

int * __errno_location()
{
  /* check, if the library is initilize */
  if (__pthread_initial_thread_bos != NULL)
  {
    pthread_descr self = thread_self();
    return THREAD_GETMEM (self, p_errnop);
  }
  return &_errno;
}

int * __h_errno_location()
{
  /* check, if the library is initilize */
  if (__pthread_initial_thread_bos != NULL)
  {
    pthread_descr self = thread_self();

    return THREAD_GETMEM (self, p_h_errnop);
  }
  return &_h_errno;        
}