nptl/pthread_attr_setstacksize.c

   1 /* Copyright (C) 2002-2015 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 (attr, stacksize)
  31      pthread_attr_t *attr;
  32      size_t stacksize;
  33 {
  34   struct pthread_attr *iattr;
  35
  36   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  37   iattr = (struct pthread_attr *) attr;
  38
  39   /* Catch invalid sizes.  */
  40   int ret = check_stacksize_attr (stacksize);
  41   if (ret)
  42     return ret;
  43
  44   iattr->stacksize = stacksize;
  45
  46   return 0;
  47 }
  48
  49 #if PTHREAD_STACK_MIN == 16384
  50 strong_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize)
  51 #else
  52 # include <shlib-compat.h>
  53 versioned_symbol (libpthread, __pthread_attr_setstacksize,
  54                   pthread_attr_setstacksize, NEW_VERNUM);
  55
  56 # if SHLIB_COMPAT(libpthread, GLIBC_2_1, NEW_VERNUM)
  57
  58 int
  59 __old_pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  60 {
  61   struct pthread_attr *iattr;
  62
  63   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  64   iattr = (struct pthread_attr *) attr;
  65
  66   /* Catch invalid sizes.  */
  67   if (stacksize < 16384)
  68     return EINVAL;
  69
  70 #  ifdef STACKSIZE_ADJUST
  71   STACKSIZE_ADJUST;
  72 #  endif
  73
  74   iattr->stacksize = stacksize;
  75
  76   return 0;
  77 }
  78
  79 compat_symbol (libpthread, __old_pthread_attr_setstacksize,
  80                pthread_attr_setstacksize, GLIBC_2_1);
  81 # endif
  82
  83 #endif