1  /* Copyright (C) 2002-2023 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 "pthreadP.h"
      19  #include <shlib-compat.h>
      20  
      21  int
      22  __pthread_attr_getstacksize (const pthread_attr_t *attr, size_t *stacksize)
      23  {
      24    struct pthread_attr *iattr;
      25  
      26    iattr = (struct pthread_attr *) attr;
      27  
      28    size_t size = iattr->stacksize;
      29  
      30    /* If the user has not set a stack size we return what the system
      31       will use as the default.  */
      32    if (size == 0)
      33      {
      34        lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
      35        size = __default_pthread_attr.internal.stacksize;
      36        lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
      37      }
      38    *stacksize = size;
      39  
      40    return 0;
      41  }
      42  versioned_symbol (libc, __pthread_attr_getstacksize,
      43                    pthread_attr_getstacksize, GLIBC_2_34);
      44  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
      45  compat_symbol (libpthread, __pthread_attr_getstacksize,
      46                 pthread_attr_getstacksize, GLIBC_2_1);
      47  #endif