Optimizations from GMP.
[glibc.git] / nptl / pthread_attr_setstack.c
blobbe79e32082ad1bd7eaa427992ed49ea90559c306
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.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <assert.h>
21 #include <errno.h>
22 #include <limits.h>
23 #include "pthreadP.h"
26 #ifndef NEW_VERNUM
27 # define NEW_VERNUM GLIBC_2_3_3
28 #endif
31 int
32 __pthread_attr_setstack (attr, stackaddr, stacksize)
33 pthread_attr_t *attr;
34 void *stackaddr;
35 size_t stacksize;
37 struct pthread_attr *iattr;
39 assert (sizeof (*attr) >= sizeof (struct pthread_attr));
40 iattr = (struct pthread_attr *) attr;
42 /* Catch invalid sizes. */
43 if (stacksize < PTHREAD_STACK_MIN)
44 return EINVAL;
46 #ifdef EXTRA_PARAM_CHECKS
47 EXTRA_PARAM_CHECKS;
48 #endif
50 iattr->stacksize = stacksize;
51 iattr->stackaddr = (char *) stackaddr + stacksize;
52 iattr->flags |= ATTR_FLAG_STACKADDR;
54 return 0;
57 #if PTHREAD_STACK_MIN == 16384
58 strong_alias (__pthread_attr_setstack, pthread_attr_setstack)
59 #else
60 # include <shlib-compat.h>
61 versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack,
62 NEW_VERNUM);
64 # if SHLIB_COMPAT(libpthread, GLIBC_2_2, NEW_VERNUM)
66 int
67 __old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
68 size_t stacksize)
70 struct pthread_attr *iattr;
72 assert (sizeof (*attr) >= sizeof (struct pthread_attr));
73 iattr = (struct pthread_attr *) attr;
75 /* Catch invalid sizes. */
76 if (stacksize < 16384)
77 return EINVAL;
79 # ifdef EXTRA_PARAM_CHECKS
80 EXTRA_PARAM_CHECKS;
81 # endif
83 iattr->stacksize = stacksize;
84 iattr->stackaddr = (char *) stackaddr + stacksize;
85 iattr->flags |= ATTR_FLAG_STACKADDR;
87 return 0;
90 compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack,
91 GLIBC_2_2);
92 # endif
94 #endif