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/*  bb_exit_func.c - dumps all the basic-block statistics linked into

    the bb_head chain to .d files.

   Copyright 2000, 2001, 2004, 2007 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);

}