nptl/pthread_attr_getstackaddr.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <assert.h>
  21 #include <errno.h>
  22 #include "pthreadP.h"
  23
  24
  25 int
  26 __pthread_attr_getstackaddr (attr, stackaddr)
  27      const pthread_attr_t *attr;
  28      void **stackaddr;
  29 {
  30   struct pthread_attr *iattr;
  31
  32   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  33   iattr = (struct pthread_attr *) attr;
  34
  35   /* XXX This function has a stupid definition.  The standard
  36      specifies no error value but what is if no stack address was set?
  37      We return an error anyway.  */
  38   if ((iattr->flags & ATTR_FLAG_STACKADDR) == 0)
  39     return EINVAL;
  40
  41   /* Store the result.  */
  42   *stackaddr = iattr->stackaddr;
  43
  44   return 0;
  45 }
  46 strong_alias (__pthread_attr_getstackaddr, pthread_attr_getstackaddr)
  47
  48 link_warning (pthread_attr_getstackaddr,
  49               "the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'")