12 int (*atexit)(void (*)(void));
14 void (*ldso_fini)(void);
15 volatile int threads_minus_1;
22 #if !defined(__PIC__) || 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined(__PCC__) || defined(__TINYC__)
25 #define ATTR_LIBC_VISIBILITY __attribute__((visibility("hidden")))
27 #define ATTR_LIBC_VISIBILITY
30 extern struct __libc __libc ATTR_LIBC_VISIBILITY;
35 #define USE_LIBC_ACCESSOR
36 #define ATTR_LIBC_VISIBILITY
37 extern struct __libc *__libc_loc(void) __attribute__((const));
38 #define libc (*__libc_loc())
43 /* Designed to avoid any overhead in non-threaded processes */
44 void __lock(volatile int *);
45 int __lockfile(FILE *);
46 void __unlockfile(FILE *);
47 #define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
48 #define UNLOCK(x) (*(volatile int *)(x)=0)
50 void __synccall(void (*)(void *), void *);
51 void __synccall_wait(void);
52 int __setxid(int, int, int, int);
54 extern char **__environ;
55 #define environ __environ
58 #define weak_alias(old, new) \
59 extern __typeof(old) new __attribute__((weak, alias(#old)))
62 //#define LFS64_2(x, y) weak_alias(x, y)
63 #define LFS64_2(x, y) extern __typeof(x) y
66 #define LFS64(x) LFS64_2(x, x##64)