nptl/pthread_attr_setstacksize.c

   1 /* Copyright (C) 2002, 2003, 2006 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   if (stacksize < PTHREAD_STACK_MIN)
  41     return EINVAL;
  42
  43   iattr->stacksize = stacksize;
  44
  45   return 0;
  46 }
  47
  48 #if PTHREAD_STACK_MIN == 16384
  49 strong_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize)
  50 #else
  51 # include <shlib-compat.h>
  52 versioned_symbol (libpthread, __pthread_attr_setstacksize,
  53                   pthread_attr_setstacksize, NEW_VERNUM);
  54
  55 # if SHLIB_COMPAT(libpthread, GLIBC_2_1, NEW_VERNUM)
  56
  57 int
  58 __old_pthread_attr_setstacksize (pthread_attr_t *attr, size_t stacksize)
  59 {
  60   struct pthread_attr *iattr;
  61
  62   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  63   iattr = (struct pthread_attr *) attr;
  64
  65   /* Catch invalid sizes.  */
  66   if (stacksize < 16384)
  67     return EINVAL;
  68
  69 #  ifdef STACKSIZE_ADJUST
  70   STACKSIZE_ADJUST;
  71 #  endif
  72
  73   iattr->stacksize = stacksize;
  74
  75   return 0;
  76 }
  77
  78 compat_symbol (libpthread, __old_pthread_attr_setstacksize,
  79                pthread_attr_setstacksize, GLIBC_2_1);
  80 # endif
  81
  82 #endif