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/* Internal prototype declarations that don't fit anywhere else.
Copyright (C) 2000-2017 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
<http://www.gnu.org/licenses/>. */
#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);
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);
/* Get frequency of the system processor. */
extern hp_timing_t __get_clockfreq (void);
/* 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);
/* Define and initialize `__progname' et. al. */
extern void __init_misc (int, char **, char **);
# if IS_IN (rtld)
extern __typeof (__profile_frequency) __profile_frequency attribute_hidden;
# endif
/* 1 if 'type' is a pointer type, 0 otherwise. */
# define __pointer_type(type) (__builtin_classify_type ((type) 0) == 5)
/* __intptr_t if P is true, or T if P is false. */
# define __integer_if_pointer_type_sub(T, P) \
__typeof__ (*(0 ? (__typeof__ (0 ? (T *) 0 : (void *) (P))) 0 \
: (__typeof__ (0 ? (__intptr_t *) 0 : (void *) (!(P)))) 0))
/* __intptr_t if EXPR has a pointer type, or the type of EXPR otherwise. */
# define __integer_if_pointer_type(expr) \
__integer_if_pointer_type_sub(__typeof__ ((__typeof__ (expr)) 0), \
__pointer_type (__typeof__ (expr)))
/* Cast an integer or a pointer VAL to integer with proper type. */
# define cast_to_integer(val) ((__integer_if_pointer_type (val)) (val))
/* Align a value by rounding down to closest size.
e.g. Using size of 4096, we get this behavior:
{4095, 4096, 4097} = {0, 4096, 4096}. */
#define ALIGN_DOWN(base, size) ((base) & -((__typeof__ (base)) (size)))
/* Align a value by rounding up to closest size.
e.g. Using size of 4096, we get this behavior:
{4095, 4096, 4097} = {4096, 4096, 8192}.
Note: The size argument has side effects (expanded multiple times). */
#define ALIGN_UP(base, size) ALIGN_DOWN ((base) + (size) - 1, (size))
/* Same as ALIGN_DOWN(), but automatically casts when base is a pointer. */
#define PTR_ALIGN_DOWN(base, size) \
((__typeof__ (base)) ALIGN_DOWN ((uintptr_t) (base), (size)))
/* Same as ALIGN_UP(), but automatically casts when base is a pointer. */
#define PTR_ALIGN_UP(base, size) \
((__typeof__ (base)) ALIGN_UP ((uintptr_t) (base), (size)))
#include <libc-diag.h>
#endif /* _LIBC_INTERNAL */
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