1/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by David Mosberger (davidm@cs.arizona.edu).
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19/* __bb_exit_func() dumps all the basic-block statistics linked into
20 the __bb_head chain to .d files. */
21
22#include <sys/gmon.h>
23#include <sys/gmon_out.h>
24#include <sys/types.h>
25
26#include <stdio.h>
27#include <stdio_ext.h>
28#include <string.h>
29
30#define OUT_NAME "gmon.out"
31
32
33extern struct __bb *__bb_head attribute_hidden;
34
35
36void
37__bb_exit_func (void)
38{
39 const int version = GMON_VERSION;
40 struct gmon_hdr ghdr;
41 struct __bb *ptr;
42 FILE *fp;
43 fp = fopen (OUT_NAME, "wb");
44 if (!fp)
45 {
46 perror (OUT_NAME);
47 return;
48 }
49 /* No threads use this stream. */
50 __fsetlocking (fp, FSETLOCKING_BYCALLER);
51
52 memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
53 memcpy (&ghdr.version, &version, sizeof (version));
54 fwrite_unlocked (&ghdr, sizeof (ghdr), 1, fp);
55
56 for (ptr = __bb_head; ptr != 0; ptr = ptr->next)
57 {
58 u_int ncounts = ptr->ncounts;
59 u_char tag;
60 u_int i;
61
62 tag = GMON_TAG_BB_COUNT;
63 fwrite_unlocked (&tag, sizeof (tag), 1, fp);
64 fwrite_unlocked (&ncounts, sizeof (ncounts), 1, fp);
65
66 for (i = 0; i < ncounts; ++i)
67 {
68 fwrite_unlocked (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1,
69 fp);
70 fwrite_unlocked (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp);
71 }
72 }
73 fclose (fp);
74}
75