2 * Copyright 2003 Alexander Kabaev.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #define RTLI_VERSION 0x01
32 #define MAX_RTLD_LOCKS 8
36 unsigned int rtli_version;
37 void *(*lock_create)(void);
38 void (*lock_destroy)(void *);
39 void (*rlock_acquire)(void *);
40 void (*wlock_acquire)(void *);
41 void (*lock_release)(void *);
42 int (*thread_set_flag)(int);
43 int (*thread_clr_flag)(int);
44 void (*at_fork)(void);
47 extern void _rtld_thread_init(struct RtldLockInfo *) __exported;
48 extern void _rtld_atfork_pre(int *) __exported;
49 extern void _rtld_atfork_post(int *) __exported;
54 typedef struct rtld_lock *rtld_lock_t;
56 extern rtld_lock_t rtld_bind_lock;
57 extern rtld_lock_t rtld_libc_lock;
58 extern rtld_lock_t rtld_phdr_lock;
60 #define RTLD_LOCK_UNLOCKED 0
61 #define RTLD_LOCK_RLOCKED 1
62 #define RTLD_LOCK_WLOCKED 2
64 struct Struct_RtldLockState;
65 typedef struct Struct_RtldLockState RtldLockState;
67 void rlock_acquire(rtld_lock_t, RtldLockState *);
68 void wlock_acquire(rtld_lock_t, RtldLockState *);
69 void lock_release(rtld_lock_t, RtldLockState *);
70 void lock_upgrade(rtld_lock_t, RtldLockState *);
71 void lock_restart_for_upgrade(RtldLockState *);