gprof/hertz.h

   1 /* Copyright (C) 2012-2019 Free Software Foundation, Inc.
   2
   3    This file is part of GNU Binutils.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18    MA 02110-1301, USA.  */
  19 \f
  20 #ifndef hertz_h
  21 #define hertz_h
  22
  23 #define HZ_WRONG 0              /* impossible clock frequency */
  24
  25 /*
  26  * Discover the tick frequency of the machine if something goes wrong,
  27  * we return HZ_WRONG, an impossible sampling frequency.
  28  */
  29
  30 extern int hertz (void);
  31
  32 #endif /* hertz_h */