gmon/sys/profil.h

   1 /* Copyright (C) 2001 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _PROFIL_H
  20 #define _PROFIL_H       1
  21
  22 #include <features.h>
  23
  24 #include <sys/time.h>
  25 #include <sys/types.h>
  26
  27 /* This interface is intended to follow the sprofil() system calls as
  28    described by the sprofil(2) man page of Irix v6.5, except that:
  29
  30         - there is no a priori limit on number of text sections
  31         - pr_scale is declared as unsigned long (instead of "unsigned int")
  32         - pr_size is declared as size_t (instead of "unsigned int")
  33         - pr_off is declared as void * (instead of "__psunsigned_t")
  34         - the overflow bin (pr_base==0, pr_scale==2) can appear anywhere
  35           in the profp array
  36         - PROF_FAST has no effect  */
  37
  38 struct prof
  39   {
  40     void *pr_base;              /* buffer base */
  41     size_t pr_size;             /* buffer size */
  42     size_t pr_off;              /* pc offset */
  43     unsigned long int pr_scale; /* pc scaling (fixed-point number) */
  44   };
  45
  46 enum
  47   {
  48     PROF_USHORT = 0,            /* use 16-bit counters (default) */
  49     PROF_UINT   = 1 << 0,       /* use 32-bit counters */
  50     PROF_FAST   = 1 << 1        /* profile faster than usual */
  51   };
  52
  53
  54 __BEGIN_DECLS
  55
  56 extern int sprofil (struct prof *__profp, int __profcnt,
  57                     struct timeval *__tvp, unsigned int __flags) __THROW;
  58
  59 __END_DECLS
  60
  61 #endif /* profil.h */