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/* 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 (C) 2000-2022 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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