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04277e02 1/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
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2 This file is part of the GNU C Library.
3 Contributed by David Mosberger <davidm@cs.arizona.edu>.
b20e47cb 4
54d79e99 5 The GNU C Library is free software; you can redistribute it and/or
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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.
b20e47cb 9
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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
41bdb6e2 13 Lesser General Public License for more details.
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41bdb6e2 15 You should have received a copy of the GNU Lesser General Public
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16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
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18
19/* This file specifies the format of gmon.out files. It should have
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20 as few external dependencies as possible as it is going to be included
21 in many different programs. That is, minimize the number of #include's.
b20e47cb 22
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23 A gmon.out file consists of a header (defined by gmon_hdr) followed by
24 a sequence of records. Each record starts with a one-byte tag
25 identifying the type of records, followed by records specific data. */
b20e47cb 26
8a4b65b4 27#ifndef _SYS_GMON_OUT_H
8a4b65b4 28#define _SYS_GMON_OUT_H 1
5107cf1d 29
8a4b65b4 30#include <features.h>
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31
32#define GMON_MAGIC "gmon" /* magic cookie */
33#define GMON_VERSION 1 /* version number */
34
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35/* For profiling shared object we need a new format. */
36#define GMON_SHOBJ_VERSION 0x1ffff
37
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38__BEGIN_DECLS
39
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40/*
41 * Raw header as it appears on file (without padding). This header
42 * always comes first in gmon.out and is then followed by a series
43 * records defined below.
44 */
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45struct gmon_hdr
46 {
47 char cookie[4];
48 char version[4];
49 char spare[3 * 4];
50 };
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51
52/* types of records in this file: */
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53typedef enum
54 {
55 GMON_TAG_TIME_HIST = 0,
56 GMON_TAG_CG_ARC = 1,
57 GMON_TAG_BB_COUNT = 2
58 } GMON_Record_Tag;
b20e47cb 59
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60struct gmon_hist_hdr
61 {
62 char low_pc[sizeof (char *)]; /* base pc address of sample buffer */
63 char high_pc[sizeof (char *)]; /* max pc address of sampled buffer */
64 char hist_size[4]; /* size of sample buffer */
65 char prof_rate[4]; /* profiling clock rate */
66 char dimen[15]; /* phys. dim., usually "seconds" */
67 char dimen_abbrev; /* usually 's' for "seconds" */
68 };
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70struct gmon_cg_arc_record
71 {
72 char from_pc[sizeof (char *)]; /* address within caller's body */
73 char self_pc[sizeof (char *)]; /* address within callee's body */
74 char count[4]; /* number of arc traversals */
3996f34b 75 };
b20e47cb 76
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77__END_DECLS
78
5107cf1d 79#endif /* sys/gmon_out.h */