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33574c17 | 1 | /* Libc stubs for pthread functions. Hurd pthread version. |
6d7e8eda | 2 | Copyright (C) 2002-2023 Free Software Foundation, Inc. |
33574c17 ST |
3 | This file is part of the GNU C Library. |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
33574c17 ST |
18 | |
19 | #include <errno.h> | |
20 | #include <dlfcn.h> | |
21 | #include <stdlib.h> | |
22 | #include <shlib-compat.h> | |
23 | #include <pthread-functions.h> | |
24 | #include <libc-lock.h> | |
a50efac1 | 25 | #include <pt-internal.h> |
33574c17 ST |
26 | |
27 | /* Pointers to the libc functions. */ | |
28 | struct pthread_functions __libc_pthread_functions attribute_hidden; | |
29 | int __libc_pthread_functions_init attribute_hidden; | |
30 | ||
31 | ||
32 | #define FORWARD2(name, rettype, decl, params, defaction) \ | |
33 | rettype \ | |
34 | name decl \ | |
35 | { \ | |
36 | if (!__libc_pthread_functions_init) \ | |
37 | defaction; \ | |
38 | \ | |
39 | return PTHFCT_CALL (ptr_##name, params); \ | |
40 | } | |
41 | ||
42 | /* Same as FORWARD2, only without return. */ | |
43 | #define FORWARD_NORETURN(name, rettype, decl, params, defaction) \ | |
44 | rettype \ | |
45 | name decl \ | |
46 | { \ | |
47 | if (!__libc_pthread_functions_init) \ | |
48 | defaction; \ | |
49 | \ | |
50 | PTHFCT_CALL (ptr_##name, params); \ | |
51 | } | |
52 | ||
53 | #define FORWARD(name, decl, params, defretval) \ | |
54 | FORWARD2 (name, int, decl, params, return defretval) | |
55 | ||
56 | FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0) | |
57 | ||
58 | FORWARD (pthread_attr_init, (pthread_attr_t *attr), (attr), 0) | |
59 | ||
33574c17 ST |
60 | FORWARD (pthread_attr_setschedparam, |
61 | (pthread_attr_t *attr, const struct sched_param *param), | |
62 | (attr, param), 0) | |
63 | ||
33574c17 ST |
64 | FORWARD (pthread_attr_getscope, |
65 | (const pthread_attr_t *attr, int *scope), (attr, scope), 0) | |
66 | FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope), | |
67 | (attr, scope), 0) | |
68 | ||
69 | ||
70 | FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0) | |
71 | FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0) | |
72 | ||
73 | ||
74 | FORWARD (pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0) | |
75 | FORWARD (pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0) | |
76 | FORWARD (pthread_cond_init, | |
77 | (pthread_cond_t *cond, const pthread_condattr_t *cond_attr), | |
78 | (cond, cond_attr), 0) | |
79 | FORWARD (pthread_cond_signal, (pthread_cond_t *cond), (cond), 0) | |
80 | FORWARD (pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex), | |
81 | (cond, mutex), 0) | |
82 | FORWARD (pthread_cond_timedwait, | |
83 | (pthread_cond_t *cond, pthread_mutex_t *mutex, | |
84 | const struct timespec *abstime), (cond, mutex, abstime), 0) | |
85 | ||
33574c17 ST |
86 | /* Use an alias to avoid warning, as pthread_exit is declared noreturn. */ |
87 | FORWARD_NORETURN (__pthread_exit, void, (void *retval), (retval), | |
88 | exit (EXIT_SUCCESS)) | |
89 | strong_alias (__pthread_exit, pthread_exit); | |
90 | ||
33574c17 ST |
91 | FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0) |
92 | ||
93 | FORWARD (pthread_mutex_init, | |
94 | (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr), | |
95 | (mutex, mutexattr), 0) | |
96 | ||
97 | FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0) | |
98 | ||
99 | FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0) | |
100 | ||
33574c17 ST |
101 | FORWARD (__pthread_setcancelstate, (int state, int *oldstate), |
102 | (state, oldstate), 0) | |
103 | strong_alias (__pthread_setcancelstate, pthread_setcancelstate); | |
104 | ||
105 | FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0) | |
106 | ||
33574c17 | 107 | FORWARD2 (__pthread_get_cleanup_stack, struct __pthread_cancelation_handler **, |
a50efac1 | 108 | (void), (), return &__pthread_cleanup_stack); |