1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <pthreadP.h>
#include <signal.h>
#include <stdlib.h>
#include <shlib-compat.h>
#include <atomic.h>
#include <safe-fatal.h>
/* Pointers to the libc functions. */
struct pthread_functions __libc_pthread_functions attribute_hidden;
int __libc_pthread_functions_init attribute_hidden;
#define FORWARD2(name, rettype, decl, params, defaction) \
rettype \
name decl \
{ \
if (!__libc_pthread_functions_init) \
defaction; \
\
return PTHFCT_CALL (ptr_##name, params); \
}
/* Same as FORWARD2, only without return. */
#define FORWARD_NORETURN(name, rettype, decl, params, defaction) \
rettype \
name decl \
{ \
if (!__libc_pthread_functions_init) \
defaction; \
\
PTHFCT_CALL (ptr_##name, params); \
}
#define FORWARD(name, decl, params, defretval) \
FORWARD2 (name, int, decl, params, return defretval)
FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0)
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1)
FORWARD (__pthread_attr_init_2_0, (pthread_attr_t *attr), (attr), 0)
compat_symbol (libc, __pthread_attr_init_2_0, pthread_attr_init, GLIBC_2_0);
#endif
FORWARD (__pthread_attr_init_2_1, (pthread_attr_t *attr), (attr), 0)
versioned_symbol (libc, __pthread_attr_init_2_1, pthread_attr_init, GLIBC_2_1);
FORWARD (pthread_attr_getdetachstate,
(const pthread_attr_t *attr, int *detachstate), (attr, detachstate),
0)
FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate),
(attr, detachstate), 0)
FORWARD (pthread_attr_getinheritsched,
(const pthread_attr_t *attr, int *inherit), (attr, inherit), 0)
FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit),
(attr, inherit), 0)
FORWARD (pthread_attr_getschedparam,
(const pthread_attr_t *attr, struct sched_param *param),
(attr, param), 0)
FORWARD (pthread_attr_setschedparam,
(pthread_attr_t *attr, const struct sched_param *param),
(attr, param), 0)
FORWARD (pthread_attr_getschedpolicy,
(const pthread_attr_t *attr, int *policy), (attr, policy), 0)
FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy),
(attr, policy), 0)
FORWARD (pthread_attr_getscope,
(const pthread_attr_t *attr, int *scope), (attr, scope), 0)
FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope),
(attr, scope), 0)
FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0)
FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0)
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_broadcast_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond), (cond), return 0)
compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast,
GLIBC_2_0);
#endif
FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0)
versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast,
GLIBC_2_3_2);
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_destroy_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond), (cond), return 0)
compat_symbol (libc, __pthread_cond_destroy_2_0, pthread_cond_destroy,
GLIBC_2_0);
#endif
FORWARD (__pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0)
versioned_symbol (libc, __pthread_cond_destroy, pthread_cond_destroy,
GLIBC_2_3_2);
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_init_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond, const pthread_condattr_t *cond_attr),
(cond, cond_attr), return 0)
compat_symbol (libc, __pthread_cond_init_2_0, pthread_cond_init, GLIBC_2_0);
#endif
FORWARD (__pthread_cond_init,
(pthread_cond_t *cond, const pthread_condattr_t *cond_attr),
(cond, cond_attr), 0)
versioned_symbol (libc, __pthread_cond_init, pthread_cond_init, GLIBC_2_3_2);
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_signal_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond), (cond), return 0)
compat_symbol (libc, __pthread_cond_signal_2_0, pthread_cond_signal,
GLIBC_2_0);
#endif
FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0)
versioned_symbol (libc, __pthread_cond_signal, pthread_cond_signal,
GLIBC_2_3_2);
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_wait_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond, pthread_mutex_t *mutex), (cond, mutex),
return 0)
compat_symbol (libc, __pthread_cond_wait_2_0, pthread_cond_wait,
GLIBC_2_0);
#endif
FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),
(cond, mutex), 0)
versioned_symbol (libc, __pthread_cond_wait, pthread_cond_wait,
GLIBC_2_3_2);
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
FORWARD2 (__pthread_cond_timedwait_2_0, int attribute_compat_text_section,
(pthread_cond_2_0_t *cond, pthread_mutex_t *mutex,
const struct timespec *abstime), (cond, mutex, abstime),
return 0)
compat_symbol (libc, __pthread_cond_timedwait_2_0, pthread_cond_timedwait,
GLIBC_2_0);
#endif
FORWARD (__pthread_cond_timedwait,
(pthread_cond_t *cond, pthread_mutex_t *mutex,
const struct timespec *abstime), (cond, mutex, abstime), 0)
versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait,
GLIBC_2_3_2);
FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),
(thread1, thread2), 1)
FORWARD_NORETURN (__pthread_exit, void, (void *retval), (retval),
exit (EXIT_SUCCESS))
strong_alias (__pthread_exit, pthread_exit);
FORWARD (pthread_getschedparam,
(pthread_t target_thread, int *policy, struct sched_param *param),
(target_thread, policy, param), 0)
FORWARD (pthread_setschedparam,
(pthread_t target_thread, int policy,
const struct sched_param *param), (target_thread, policy, param), 0)
FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0)
FORWARD (pthread_mutex_init,
(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr),
(mutex, mutexattr), 0)
FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0)
FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0)
FORWARD (__pthread_setcancelstate, (int state, int *oldstate),
(state, oldstate), 0)
strong_alias (__pthread_setcancelstate, pthread_setcancelstate)
FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)
FORWARD_NORETURN (__pthread_unwind,
void attribute_hidden __attribute ((noreturn))
__cleanup_fct_attribute attribute_compat_text_section,
(__pthread_unwind_buf_t *buf), (buf),
__safe_fatal ())
|
