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/* Test for GCC >= 3.4.4 && <= 4.4.6 */
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/*#if ( ( __GNUC__ > 3 ) || \
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( __GNUC__ == 3 && __GNUC_MINOR__ > 4 )|| \
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( __GNUC__ == 3 && __GNUC_MINOR__ == 4 && __GNUC_PATCHLEVEL__ >= 4 ) ) && \
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( ( __GNUC__ < 4 ) || \
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( __GNUC__ == 4 && __GNUC_MINOR__ < 4 )|| \
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( __GNUC__ == 4 && __GNUC_MINOR__ == 4 && __GNUC_PATCHLEVEL__ <= 6 ) )
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*/
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/* Routines required for instrumenting a program. */
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/* Compile this one with gcc. */
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/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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|
from the use of this file. (The General Public License restrictions
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|
do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combine
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|
executable.)
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
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|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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|
|
for more details.
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|
|
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|
You should have received a copy of the GNU General Public License
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|
along with GCC; see the file COPYING. If not, write to the Free
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|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#define GCOV_LINKAGE /* nothing */
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#include "gcov-io.h"
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/* Chain of per-object gcov structures. */
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struct gcov_info *gcov_list;
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/* A program checksum allows us to distinguish program data for an
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|
object file included in multiple programs. */
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|
gcov_unsigned_t gcov_crc32;
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|
/* The profile merging function that just adds the counters. It is given
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|
an array COUNTERS of N_COUNTERS old counters and it reads the same number
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|
of counters from the gcov file. */
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void
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__gcov_merge_add (gcov_type *counters, unsigned n_counters)
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|
{
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for (; n_counters; counters++, n_counters--)
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*counters += gcov_read_counter ();
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}
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|
/* The profile merging function for choosing the most common value.
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|
It is given an array COUNTERS of N_COUNTERS old counters and it
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|
|
reads the same number of counters from the gcov file. The counters
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|
are split into 3-tuples where the members of the tuple have
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|
meanings:
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|
-- the stored candidate on the most common value of the measured entity
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-- counter
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|
-- total number of evaluations of the value */
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|
|
void
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__gcov_merge_single (gcov_type *counters, unsigned n_counters)
|
|
|
{
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|
unsigned i, n_measures;
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|
gcov_type value, counter, all;
|
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|
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|
GCOV_CHECK (!(n_counters % 3));
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|
n_measures = n_counters / 3;
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|
for (i = 0; i < n_measures; i++, counters += 3)
|
|
|
{
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|
|
value = gcov_read_counter ();
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|
|
counter = gcov_read_counter ();
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|
|
all = gcov_read_counter ();
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|
|
|
|
|
if (counters[0] == value)
|
|
|
counters[1] += counter;
|
|
|
else if (counter > counters[1])
|
|
|
{
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|
|
counters[0] = value;
|
|
|
counters[1] = counter - counters[1];
|
|
|
}
|
|
|
else
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|
|
counters[1] -= counter;
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|
|
counters[2] += all;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* The profile merging function for choosing the most common
|
|
|
difference between two consecutive evaluations of the value. It is
|
|
|
given an array COUNTERS of N_COUNTERS old counters and it reads the
|
|
|
same number of counters from the gcov file. The counters are split
|
|
|
into 4-tuples where the members of the tuple have meanings:
|
|
|
|
|
|
-- the last value of the measured entity
|
|
|
-- the stored candidate on the most common difference
|
|
|
-- counter
|
|
|
-- total number of evaluations of the value */
|
|
|
|
|
|
void
|
|
|
__gcov_merge_delta (gcov_type *counters, unsigned n_counters)
|
|
|
{
|
|
|
unsigned i, n_measures;
|
|
|
gcov_type last, value, counter, all;
|
|
|
|
|
|
GCOV_CHECK (!(n_counters % 4));
|
|
|
n_measures = n_counters / 4;
|
|
|
for (i = 0; i < n_measures; i++, counters += 4)
|
|
|
{
|
|
|
last = gcov_read_counter ();
|
|
|
value = gcov_read_counter ();
|
|
|
counter = gcov_read_counter ();
|
|
|
all = gcov_read_counter ();
|
|
|
|
|
|
if (counters[1] == value)
|
|
|
counters[2] += counter;
|
|
|
else if (counter > counters[2])
|
|
|
{
|
|
|
counters[1] = value;
|
|
|
counters[2] = counter - counters[2];
|
|
|
}
|
|
|
else
|
|
|
counters[2] -= counter;
|
|
|
counters[3] += all;
|
|
|
}
|
|
|
}
|
|
|
//#endif /* __GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__ */
|
|
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|
