gprof/hist.h

   1 /* hist.h
   2
   3    Copyright 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Binutils.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  20 \f
  21 #ifndef hist_h
  22 #define hist_h
  23
  24 typedef struct histogram
  25 {
  26   bfd_vma lowpc;
  27   bfd_vma highpc;
  28   unsigned int num_bins;
  29   int *sample;           /* Histogram samples (shorts in the file!).  */
  30 } histogram;
  31
  32 histogram *histograms;
  33 unsigned num_histograms;
  34
  35 /* Scale factor converting samples to pc values:
  36    each sample covers HIST_SCALE bytes.  */
  37 extern double hist_scale;
  38
  39 extern void hist_read_rec        (FILE *, const char *);
  40 extern void hist_write_hist      (FILE *, const char *);
  41 extern void hist_assign_samples  (void);
  42 extern void hist_print           (void);
  43
  44 /* Checks if ADDRESS is within the range of addresses for which
  45    we have histogram data.  Returns 1 if so and 0 otherwise.  */
  46 extern int hist_check_address (unsigned address);
  47
  48 /* Given a range of addresses for a symbol, find a histogram record
  49    that intersects with this range, and clips the range to that
  50    histogram record, modifying *P_LOWPC and *P_HIGHPC.
  51
  52    If no intersection is found, *P_LOWPC and *P_HIGHPC will be set to
  53    one unspecified value.  If more that one intersection is found,
  54    an error is emitted.  */
  55 extern void hist_clip_symbol_address (bfd_vma *p_lowpc, bfd_vma *p_highpc);
  56
  57 #endif /* hist_h */