[thirdparty/glibc.git] / include / libc-internal.h

/* Internal prototype declarations that don't fit anywhere else.
   Copyright (C) 2000-2025 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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
   <https://www.gnu.org/licenses/>.  */

#ifndef _LIBC_INTERNAL
# define _LIBC_INTERNAL 1

#include <hp-timing.h>

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

/* 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);

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

/* Free resources stored in thread-local variables on thread exit.  */
extern void __libc_thread_freeres (void)
#if PTHREAD_IN_LIBC
  attribute_hidden
#endif
  ;

/* Define and initialize `__progname' et. al.  */
extern void __init_misc (int, char **, char **) attribute_hidden;

# if IS_IN (rtld)
extern __typeof (__profile_frequency) __profile_frequency attribute_hidden;
# endif

#ifdef SHARED
/* True if this libc belongs to the initially loaded program (i.e., it
   is not for an audit module, not loaded via dlmopen, and not loaded
   via static dlopen either).  */
extern _Bool __libc_initial attribute_hidden;
#else
/* The static libc is always the initial namespace.  */
# define __libc_initial ((_Bool) 1)
#endif

#endif /* _LIBC_INTERNAL  */
Commit	Line	Data
	1	/* Internal prototype declarations that don't fit anywhere else.
	2	Copyright (C) 2000-2025 Free Software Foundation, Inc.
	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library; if not, see
	17	<https://www.gnu.org/licenses/>. */
	18
	19	#ifndef _LIBC_INTERNAL
	20	# define _LIBC_INTERNAL 1
	21
	22	#include <hp-timing.h>
	23
	24	/* Discover the tick frequency of the machine if something goes wrong,
	25	we return 0, an impossible hertz. */
	26	extern int __profile_frequency (void);
	27	libc_hidden_proto (__profile_frequency)
	28
	29	/* Hooks for the instrumenting functions. */
	30	extern void __cyg_profile_func_enter (void this_fn, void call_site);
	31	extern void __cyg_profile_func_exit (void this_fn, void call_site);
	32
	33	/* Free all allocated resources. */
	34	extern void __libc_freeres (void);
	35	libc_hidden_proto (__libc_freeres)
	36
	37	/* Free resources stored in thread-local variables on thread exit. */
	38	extern void __libc_thread_freeres (void)
	39	#if PTHREAD_IN_LIBC
	40	attribute_hidden
	41	#endif
	42	;
	43
	44	/* Define and initialize `__progname' et. al. */
	45	extern void __init_misc (int, char , char ) attribute_hidden;
	46
	47	# if IS_IN (rtld)
	48	extern __typeof (__profile_frequency) __profile_frequency attribute_hidden;
	49	# endif
	50
	51	#ifdef SHARED
	52	/* True if this libc belongs to the initially loaded program (i.e., it
	53	is not for an audit module, not loaded via dlmopen, and not loaded
	54	via static dlopen either). */
	55	extern _Bool __libc_initial attribute_hidden;
	56	#else
	57	/* The static libc is always the initial namespace. */
	58	# define __libc_initial ((_Bool) 1)
	59	#endif
	60
	61	#endif /* _LIBC_INTERNAL */