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/* hist.h
Copyright 2000, 2001, 2002, 2004, 2005, 2007, 2009
Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef hist_h
#define hist_h
typedef struct histogram
{
bfd_vma lowpc;
bfd_vma highpc;
unsigned int num_bins;
int *sample; /* Histogram samples (shorts in the file!). */
} histogram;
extern histogram * histograms;
extern unsigned num_histograms;
/* Scale factor converting samples to pc values:
each sample covers HIST_SCALE bytes. */
extern double hist_scale;
extern void hist_read_rec (FILE *, const char *);
extern void hist_write_hist (FILE *, const char *);
extern void hist_assign_samples (void);
extern void hist_print (void);
/* Checks if ADDRESS is within the range of addresses for which
we have histogram data. Returns 1 if so and 0 otherwise. */
extern int hist_check_address (unsigned address);
/* Given a range of addresses for a symbol, find a histogram record
that intersects with this range, and clips the range to that
histogram record, modifying *P_LOWPC and *P_HIGHPC.
If no intersection is found, *P_LOWPC and *P_HIGHPC will be set to
one unspecified value. If more that one intersection is found,
an error is emitted. */
extern void hist_clip_symbol_address (bfd_vma *p_lowpc, bfd_vma *p_highpc);
#endif /* hist_h */
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