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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) 2000-2022 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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