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/* bb_exit_func.c - dumps all the basic-block statistics linked into
the bb_head chain to .d files.
Copyright (C) 2000-2017 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.
This code was contributed by:
David Mosberger-Tang <David.Mosberger@acm.org> */
#include <stdio.h>
#include <strings.h>
#include "bfd.h"
#include "gmon_out.h"
/* structure emitted by -a */
struct bb
{
long zero_word;
const char *filename;
long *counts;
long ncounts;
struct bb *next;
const unsigned long *addresses;
};
struct bb *__bb_head = (struct bb *) 0;
void
__bb_exit_func ()
{
const int version = GMON_VERSION;
struct gmon_hdr ghdr;
struct bb *ptr;
FILE *fp;
/* GEN_GMON_CNT_FILE should be defined on systems with mcleanup()
functions that do not write basic-block to gmon.out. In such
cases profiling with "-pg -a" would result in a gmon.out file
without basic-block info (because the file written here would be
overwritten. Thus, a separate file is generated instead. The
two files can easily be combined by specifying them on gprof's
command line (and possibly generating a gmon.sum file with "gprof
-s"). */
#ifndef GEN_GMON_CNT_FILE
# define OUT_NAME "gmon.out"
#else
# define OUT_NAME "gmon.cnt"
#endif
fp = fopen (OUT_NAME, "wb");
if (!fp)
{
perror (OUT_NAME);
return;
}
memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
memcpy (&ghdr.version, &version, sizeof (version));
fwrite (&ghdr, sizeof (ghdr), 1, fp);
for (ptr = __bb_head; ptr != 0; ptr = ptr->next)
{
u_int ncounts = ptr->ncounts;
u_char tag;
u_int i;
tag = GMON_TAG_BB_COUNT;
fwrite (&tag, sizeof (tag), 1, fp);
fwrite (&ncounts, sizeof (ncounts), 1, fp);
for (i = 0; i < ncounts; ++i)
{
fwrite (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1, fp);
fwrite (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp);
}
}
fclose (fp);
}
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