Update.
[glibc.git] / gmon / bb_exit_func.c
blobce61c75d6ebebe0a03321c4e002abd5bc61fb832
1 /* Copyright (C) 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by David Mosberger (davidm@cs.arizona.edu).
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 /* __bb_exit_func() dumps all the basic-block statistics linked into
21 the __bb_head chain to .d files. */
23 #include <sys/gmon.h>
24 #include <sys/gmon_out.h>
25 #include <sys/types.h>
27 #include <stdio.h>
28 #include <stdio_ext.h>
29 #include <string.h>
31 #define OUT_NAME "gmon.out"
34 void
35 __bb_exit_func (void)
37 const int version = GMON_VERSION;
38 struct gmon_hdr ghdr;
39 struct __bb *ptr;
40 FILE *fp;
41 fp = fopen (OUT_NAME, "wb");
42 if (!fp)
44 perror (OUT_NAME);
45 return;
47 /* No threads use this stream. */
48 __fsetlocking (fp, FSETLOCKING_BYCALLER);
50 memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
51 memcpy (&ghdr.version, &version, sizeof (version));
52 fwrite_unlocked (&ghdr, sizeof (ghdr), 1, fp);
54 for (ptr = __bb_head; ptr != 0; ptr = ptr->next)
56 u_int ncounts = ptr->ncounts;
57 u_char tag;
58 u_int i;
60 tag = GMON_TAG_BB_COUNT;
61 fwrite_unlocked (&tag, sizeof (tag), 1, fp);
62 fwrite_unlocked (&ncounts, sizeof (ncounts), 1, fp);
64 for (i = 0; i < ncounts; ++i)
66 fwrite_unlocked (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1,
67 fp);
68 fwrite_unlocked (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp);
71 fclose (fp);