1/* Copyright (C) 2002-2016 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
25#ifndef NEW_VERNUM
26# define NEW_VERNUM GLIBC_2_3_3
27#endif
28
29
30int
31__pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
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#ifdef EXTRA_PARAM_CHECKS
45 EXTRA_PARAM_CHECKS;
46#endif
47
48 iattr->stacksize = stacksize;
49#if _STACK_GROWS_DOWN
50 iattr->stackaddr = (char *) stackaddr + stacksize;
51#else
52 iattr->stackaddr = (char *) stackaddr;
53#endif
54 iattr->flags |= ATTR_FLAG_STACKADDR;
55
56 return 0;
57}
58
59#if PTHREAD_STACK_MIN == 16384
60strong_alias (__pthread_attr_setstack, pthread_attr_setstack)
61#else
62# include <shlib-compat.h>
63versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack,
64 NEW_VERNUM);
65
66# if SHLIB_COMPAT(libpthread, GLIBC_2_2, NEW_VERNUM)
67
68int
69__old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
70 size_t stacksize)
71{
72 struct pthread_attr *iattr;
73
74 assert (sizeof (*attr) >= sizeof (struct pthread_attr));
75 iattr = (struct pthread_attr *) attr;
76
77 /* Catch invalid sizes. */
78 if (stacksize < 16384)
79 return EINVAL;
80
81# ifdef EXTRA_PARAM_CHECKS
82 EXTRA_PARAM_CHECKS;
83# endif
84
85 iattr->stacksize = stacksize;
86#if _STACK_GROWS_DOWN
87 iattr->stackaddr = (char *) stackaddr + stacksize;
88#else
89 iattr->stackaddr = (char *) stackaddr;
90#endif
91 iattr->flags |= ATTR_FLAG_STACKADDR;
92
93 return 0;
94}
95
96compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack,
97 GLIBC_2_2);
98# endif
99
100#endif
101