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 <assert.h>
  20 #include <errno.h>
  21 #include <limits.h>
  22 #include "pthreadP.h"
  23
  24 #ifndef NEW_VERNUM
  25 # define NEW_VERNUM GLIBC_2_3_3
  26 #endif
  27
  28
  29 int
  30 __pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  31 {
  32   struct pthread_attr *iattr;
  33
  34   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  35   iattr = (struct pthread_attr *) attr;
  36
  37   /* Catch invalid sizes.  */
  38   int ret = check_stacksize_attr (stacksize);
  39   if (ret)
  40     return ret;
  41
  42   iattr->stacksize = stacksize;
  43
  44   return 0;
  45 }
  46
  47 #if PTHREAD_STACK_MIN == 16384
  48 strong_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize)
  49 #else
  50 # include <shlib-compat.h>
  51 versioned_symbol (libpthread, __pthread_attr_setstacksize,
  52                   pthread_attr_setstacksize, NEW_VERNUM);
  53
  54 # if SHLIB_COMPAT(libpthread, GLIBC_2_1, NEW_VERNUM)
  55
  56 int
  57 __old_pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  58 {
  59   struct pthread_attr *iattr;
  60
  61   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  62   iattr = (struct pthread_attr *) attr;
  63
  64   /* Catch invalid sizes.  */
  65   if (stacksize < 16384)
  66     return EINVAL;
  67
  68 #  ifdef STACKSIZE_ADJUST
  69   STACKSIZE_ADJUST;
  70 #  endif
  71
  72   iattr->stacksize = stacksize;
  73
  74   return 0;
  75 }
  76
  77 compat_symbol (libpthread, __old_pthread_attr_setstacksize,
  78                pthread_attr_setstacksize, GLIBC_2_1);
  79 # endif
  80
  81 #endif