12 int (*atexit)(void (*)(void));
14 void (*ldso_fini)(void);
15 volatile int threads_minus_1;
21 extern size_t __hwcap;
23 #if !defined(__PIC__) || 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined(__PCC__) || defined(__TINYC__)
27 #define BROKEN_VISIBILITY 1
29 #define ATTR_LIBC_VISIBILITY __attribute__((visibility("hidden")))
31 #define ATTR_LIBC_VISIBILITY
34 extern struct __libc __libc ATTR_LIBC_VISIBILITY;
39 #define USE_LIBC_ACCESSOR
40 #define ATTR_LIBC_VISIBILITY
41 extern struct __libc *__libc_loc(void) __attribute__((const));
42 #define libc (*__libc_loc())
47 /* Designed to avoid any overhead in non-threaded processes */
48 void __lock(volatile int *);
49 void __unlock(volatile int *);
50 int __lockfile(FILE *);
51 void __unlockfile(FILE *);
52 #define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
53 #define UNLOCK(x) (libc.threads_minus_1 ? (__unlock(x),1) : ((void)(x),1))
55 void __synccall(void (*)(void *), void *);
56 int __setxid(int, int, int, int);
58 extern char **__environ;
59 #define environ __environ
62 #define weak_alias(old, new) \
63 extern __typeof(old) new __attribute__((weak, alias(#old)))
66 #define LFS64_2(x, y) weak_alias(x, y)
69 #define LFS64(x) LFS64_2(x, x##64)