glibc/include/libc-internal.h

/* This file contains a number of internal prototype declarations that
   don't fit anywhere else.  */

#ifndef _LIBC_INTERNAL
# define _LIBC_INTERNAL 1

#include <hp-timing.h>

/* Initialize the `__libc_enable_secure' flag.  */
extern void __libc_init_secure (void);

/* This function will be called from _init in init-first.c.  */
extern void __libc_global_ctors (void);

/* Discover the tick frequency of the machine if something goes wrong,
   we return 0, an impossible hertz.  */
extern int __profile_frequency (void);

/* Hooks for the instrumenting functions.  */
extern void __cyg_profile_func_enter (void *this_fn, void *call_site);
extern void __cyg_profile_func_exit (void *this_fn, void *call_site);

/* Get frequency of the system processor.  */
extern hp_timing_t __get_clockfreq (void);

/* Free all allocated resources.  */
extern void __libc_freeres (void);

#endif /* _LIBC_INTERNAL  */