The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/sys/profil.h


$ cat -n /usr/include/x86_64-linux-gnu/sys/profil.h

     1	/* Copyright (C) 2001-2024 Free Software Foundation, Inc.
     2	   This file is part of the GNU C Library.
     3	
     4	   The GNU C Library is free software; you can redistribute it and/or
     5	   modify it under the terms of the GNU Lesser General Public
     6	   License as published by the Free Software Foundation; either
     7	   version 2.1 of the License, or (at your option) any later version.
     8	
     9	   The GNU C Library is distributed in the hope that it will be useful,
    10	   but WITHOUT ANY WARRANTY; without even the implied warranty of
    11	   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12	   Lesser General Public License for more details.
    13	
    14	   You should have received a copy of the GNU Lesser General Public
    15	   License along with the GNU C Library; if not, see
    16	   <https://www.gnu.org/licenses/>.  */
    17	
    18	#ifndef _PROFIL_H
    19	#define _PROFIL_H	1
    20	
    21	#include <features.h>
    22	
    23	#include <sys/time.h>
    24	#include <sys/types.h>
    25	
    26	/* This interface is intended to follow the sprofil() system calls as
    27	   described by the sprofil(2) man page of Irix v6.5, except that:
    28	
    29		- there is no a priori limit on number of text sections
    30		- pr_scale is declared as unsigned long (instead of "unsigned int")
    31		- pr_size is declared as size_t (instead of "unsigned int")
    32		- pr_off is declared as void * (instead of "__psunsigned_t")
    33		- the overflow bin (pr_base==0, pr_scale==2) can appear anywhere
    34		  in the profp array
    35		- PROF_FAST has no effect  */
    36	
    37	struct prof
    38	  {
    39	    void *pr_base;		/* buffer base */
    40	    size_t pr_size;		/* buffer size */
    41	    size_t pr_off;		/* pc offset */
    42	    unsigned long int pr_scale;	/* pc scaling (fixed-point number) */
    43	  };
    44	
    45	enum
    46	  {
    47	    PROF_USHORT	= 0,		/* use 16-bit counters (default) */
    48	    PROF_UINT	= 1 << 0,	/* use 32-bit counters */
    49	    PROF_FAST   = 1 << 1	/* profile faster than usual */
    50	  };
    51	
    52	
    53	__BEGIN_DECLS
    54	
    55	extern int sprofil (struct prof *__profp, int __profcnt,
    56			    struct timeval *__tvp, unsigned int __flags) __THROW;
    57	
    58	__END_DECLS
    59	
    60	#endif /* profil.h */