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glibc  2.9
pthread_attr_setstack.c
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00001 /* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <assert.h>
00021 #include <errno.h>
00022 #include <limits.h>
00023 #include "pthreadP.h"
00024 
00025 
00026 #ifndef NEW_VERNUM
00027 # define NEW_VERNUM GLIBC_2_3_3
00028 #endif
00029 
00030 
00031 int
00032 __pthread_attr_setstack (attr, stackaddr, stacksize)
00033      pthread_attr_t *attr;
00034      void *stackaddr;
00035      size_t stacksize;
00036 {
00037   struct pthread_attr *iattr;
00038 
00039   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
00040   iattr = (struct pthread_attr *) attr;
00041 
00042   /* Catch invalid sizes.  */
00043   if (stacksize < PTHREAD_STACK_MIN)
00044     return EINVAL;
00045 
00046 #ifdef EXTRA_PARAM_CHECKS
00047   EXTRA_PARAM_CHECKS;
00048 #endif
00049 
00050   iattr->stacksize = stacksize;
00051   iattr->stackaddr = (char *) stackaddr + stacksize;
00052   iattr->flags |= ATTR_FLAG_STACKADDR;
00053 
00054   return 0;
00055 }
00056 
00057 #if PTHREAD_STACK_MIN == 16384
00058 strong_alias (__pthread_attr_setstack, pthread_attr_setstack)
00059 #else
00060 # include <shlib-compat.h>
00061 versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack,
00062                 NEW_VERNUM);
00063 
00064 # if SHLIB_COMPAT(libpthread, GLIBC_2_2, NEW_VERNUM)
00065 
00066 int
00067 __old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
00068                           size_t stacksize)
00069 {
00070   struct pthread_attr *iattr;
00071 
00072   assert (sizeof (*attr) >= sizeof (struct pthread_attr));
00073   iattr = (struct pthread_attr *) attr;
00074 
00075   /* Catch invalid sizes.  */
00076   if (stacksize < 16384)
00077     return EINVAL;
00078 
00079 #  ifdef EXTRA_PARAM_CHECKS
00080   EXTRA_PARAM_CHECKS;
00081 #  endif
00082 
00083   iattr->stacksize = stacksize;
00084   iattr->stackaddr = (char *) stackaddr + stacksize;
00085   iattr->flags |= ATTR_FLAG_STACKADDR;
00086 
00087   return 0;
00088 }
00089 
00090 compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack,
00091               GLIBC_2_2);
00092 # endif
00093 
00094 #endif