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 | |
30 | int |
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 |
60 | strong_alias (__pthread_attr_setstack, pthread_attr_setstack) |
61 | #else |
62 | # include <shlib-compat.h> |
63 | versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack, |
64 | NEW_VERNUM); |
65 | |
66 | # if SHLIB_COMPAT(libpthread, GLIBC_2_2, NEW_VERNUM) |
67 | |
68 | int |
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 | |
96 | compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack, |
97 | GLIBC_2_2); |
98 | # endif |
99 | |
100 | #endif |
101 | |