1/* hist.h
2
3   Copyright (C) 2000-2017 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 3 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,
20   MA 02110-1301, USA.  */
21
22#ifndef hist_h
23#define hist_h
24
25typedef struct histogram
26{
27  bfd_vma lowpc;
28  bfd_vma highpc;
29  unsigned int num_bins;
30  int *sample;           /* Histogram samples (shorts in the file!).  */
31} histogram;
32
33extern histogram * histograms;
34extern unsigned    num_histograms;
35
36/* Scale factor converting samples to pc values:
37   each sample covers HIST_SCALE bytes.  */
38extern double hist_scale;
39
40extern void hist_read_rec        (FILE *, const char *);
41extern void hist_write_hist      (FILE *, const char *);
42extern void hist_assign_samples  (void);
43extern void hist_print           (void);
44
45/* Checks if ADDRESS is within the range of addresses for which
46   we have histogram data.  Returns 1 if so and 0 otherwise.  */
47extern int hist_check_address (unsigned address);
48
49/* Given a range of addresses for a symbol, find a histogram record
50   that intersects with this range, and clips the range to that
51   histogram record, modifying *P_LOWPC and *P_HIGHPC.
52
53   If no intersection is found, *P_LOWPC and *P_HIGHPC will be set to
54   one unspecified value.  If more that one intersection is found,
55   an error is emitted.  */
56extern void hist_clip_symbol_address (bfd_vma *p_lowpc, bfd_vma *p_highpc);
57
58#endif /* hist_h */
59