1  /* pthread_attr_setstack.  Generic version.
       2     Copyright (C) 2002-2023 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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <pthread.h>
      20  #include <assert.h>
      21  
      22  #include <pt-internal.h>
      23  #include <pthreadP.h>
      24  
      25  int
      26  __pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, size_t stacksize)
      27  {
      28    int err;
      29    size_t s;
      30  
      31    /* pthread_attr_setstack should always succeed, thus we set the size
      32       first as it is more discriminating.  */
      33    __pthread_attr_getstacksize (attr, &s);
      34  
      35    err = __pthread_attr_setstacksize (attr, stacksize);
      36    if (err)
      37      return err;
      38  
      39    err = __pthread_attr_setstackaddr (attr, stackaddr);
      40    if (err)
      41      {
      42        int e = __pthread_attr_setstacksize (attr, s);
      43        assert_perror (e);
      44  
      45        return err;
      46      }
      47  
      48    return 0;
      49  }
      50  weak_alias (__pthread_attr_setstack, pthread_attr_setstack)