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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gprof/] [bb_exit_func.c] - Blame information for rev 309

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1 25 khays
/*  bb_exit_func.c - dumps all the basic-block statistics linked into
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    the bb_head chain to .d files.
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   Copyright 2000, 2001, 2004, 2007 Free Software Foundation, Inc.
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   This file is part of GNU Binutils.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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   02110-1301, USA.
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   This code was contributed by:
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     David Mosberger-Tang <David.Mosberger@acm.org>  */
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#include <stdio.h>
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#include <strings.h>
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#include "bfd.h"
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#include "gmon_out.h"
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/* structure emitted by -a */
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struct bb
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{
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  long zero_word;
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  const char *filename;
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  long *counts;
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  long ncounts;
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  struct bb *next;
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  const unsigned long *addresses;
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};
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struct bb *__bb_head = (struct bb *) 0;
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void
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__bb_exit_func ()
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{
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  const int version = GMON_VERSION;
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  struct gmon_hdr ghdr;
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  struct bb *ptr;
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  FILE *fp;
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  /* GEN_GMON_CNT_FILE should be defined on systems with mcleanup()
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     functions that do not write basic-block to gmon.out.  In such
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     cases profiling with "-pg -a" would result in a gmon.out file
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     without basic-block info (because the file written here would be
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     overwritten.  Thus, a separate file is generated instead.  The
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     two files can easily be combined by specifying them on gprof's
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     command line (and possibly generating a gmon.sum file with "gprof
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     -s"). */
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#ifndef GEN_GMON_CNT_FILE
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#   define OUT_NAME     "gmon.out"
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#else
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#   define OUT_NAME     "gmon.cnt"
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#endif
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  fp = fopen (OUT_NAME, "wb");
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  if (!fp)
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    {
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      perror (OUT_NAME);
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      return;
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    }
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  memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
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  memcpy (&ghdr.version, &version, sizeof (version));
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  fwrite (&ghdr, sizeof (ghdr), 1, fp);
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  for (ptr = __bb_head; ptr != 0; ptr = ptr->next)
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    {
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      u_int ncounts = ptr->ncounts;
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      u_char tag;
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      u_int i;
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      tag = GMON_TAG_BB_COUNT;
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      fwrite (&tag, sizeof (tag), 1, fp);
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      fwrite (&ncounts, sizeof (ncounts), 1, fp);
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      for (i = 0; i < ncounts; ++i)
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        {
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          fwrite (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1, fp);
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          fwrite (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp);
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        }
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    }
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  fclose (fp);
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}

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