nptl/pthread_attr_setstacksize.c

   1 /* Copyright (C) 2002-2017 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <limits.h>
  21 #include "pthreadP.h"
  22
  23 #ifndef NEW_VERNUM
  24 # define NEW_VERNUM GLIBC_2_3_3
  25 #endif
  26
  27
  28 int
  29 __pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  30 {
  31   struct pthread_attr *iattr;
  32
  33   iattr = (struct pthread_attr *) attr;
  34
  35   /* Catch invalid sizes.  */
  36   int ret = check_stacksize_attr (stacksize);
  37   if (ret)
  38     return ret;
  39
  40   iattr->stacksize = stacksize;
  41
  42   return 0;
  43 }
  44
  45 #if PTHREAD_STACK_MIN == 16384
  46 strong_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize)
  47 #else
  48 # include <shlib-compat.h>
  49 versioned_symbol (libpthread, __pthread_attr_setstacksize,
  50                   pthread_attr_setstacksize, NEW_VERNUM);
  51
  52 # if SHLIB_COMPAT(libpthread, GLIBC_2_1, NEW_VERNUM)
  53
  54 int
  55 __old_pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  56 {
  57   struct pthread_attr *iattr;
  58
  59   iattr = (struct pthread_attr *) attr;
  60
  61   /* Catch invalid sizes.  */
  62   if (stacksize < 16384)
  63     return EINVAL;
  64
  65 #  ifdef STACKSIZE_ADJUST
  66   STACKSIZE_ADJUST;
  67 #  endif
  68
  69   iattr->stacksize = stacksize;
  70
  71   return 0;
  72 }
  73
  74 compat_symbol (libpthread, __old_pthread_attr_setstacksize,
  75                pthread_attr_setstacksize, GLIBC_2_1);
  76 # endif
  77
  78 #endif