nptl/pthread_attr_getstackaddr.c

   1 /* Copyright (C) 2002-2022 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, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include "pthreadP.h"
  20 #include <shlib-compat.h>
  21
  22 int
  23 __pthread_attr_getstackaddr (const pthread_attr_t *attr, void **stackaddr)
  24 {
  25   struct pthread_attr *iattr;
  26
  27   iattr = (struct pthread_attr *) attr;
  28
  29   /* Some code assumes this function to work even if no stack address
  30      has been set.  Let them figure it out for themselves what the
  31      value means.  Simply store the result.  */
  32   *stackaddr = iattr->stackaddr;
  33
  34   return 0;
  35 }
  36 versioned_symbol (libc, __pthread_attr_getstackaddr,
  37                   pthread_attr_getstackaddr, GLIBC_2_34);
  38 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
  39 compat_symbol (libpthread, __pthread_attr_getstackaddr,
  40                pthread_attr_getstackaddr, GLIBC_2_1);
  41 #endif
  42
  43 link_warning (pthread_attr_getstackaddr,
  44               "the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'")