sysdeps/htl/pt-attr-setstack.c

   1 /* pthread_attr_setstack.  Generic version.
   2    Copyright (C) 2002-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <assert.h>
  21
  22 #include <pt-internal.h>
  23
  24 int
  25 pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, size_t stacksize)
  26 {
  27   int err;
  28   size_t s;
  29
  30   /* pthread_attr_setstack should always succeed, thus we set the size
  31      first as it is more discriminating.  */
  32   pthread_attr_getstacksize (attr, &s);
  33
  34   err = pthread_attr_setstacksize (attr, stacksize);
  35   if (err)
  36     return err;
  37
  38   err = pthread_attr_setstackaddr (attr, stackaddr);
  39   if (err)
  40     {
  41       int e = pthread_attr_setstacksize (attr, s);
  42       assert_perror (e);
  43
  44       return err;
  45     }
  46
  47   return 0;
  48 }