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01: /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
02:    This file is part of the GNU C Library.
03:    Contributed by David Mosberger <davidm@cs.arizona.edu>.
04: 
05:    The GNU C Library is free software; you can redistribute it and/or
06:    modify it under the terms of the GNU Lesser General Public
07:    License as published by the Free Software Foundation; either
08:    version 2.1 of the License, or (at your option) any later version.
09: 
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, write to the Free
17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18:    02111-1307 USA.  */
19: 
20: /* This file specifies the format of gmon.out files.  It should have
21:    as few external dependencies as possible as it is going to be included
22:    in many different programs.  That is, minimize the number of #include's.
23: 
24:    A gmon.out file consists of a header (defined by gmon_hdr) followed by
25:    a sequence of records.  Each record starts with a one-byte tag
26:    identifying the type of records, followed by records specific data. */
27: 
28: #ifndef _SYS_GMON_OUT_H
29: #define _SYS_GMON_OUT_H 1
30: 
31: #include <features.h>
32: 
33: #define GMON_MAGIC      "gmon"  /* magic cookie */
34: #define GMON_VERSION    1       /* version number */
35: 
36: /* For profiling shared object we need a new format.  */
37: #define GMON_SHOBJ_VERSION      0x1ffff
38: 
39: __BEGIN_DECLS
40: 
41: /*
42:  * Raw header as it appears on file (without padding).  This header
43:  * always comes first in gmon.out and is then followed by a series
44:  * records defined below.
45:  */
46: struct gmon_hdr
47:   {
48:     char cookie[4];
49:     char version[4];
50:     char spare[3 * 4];
51:   };
52: 
53: /* types of records in this file: */
54: typedef enum
55:   {
56:     GMON_TAG_TIME_HIST = 0,
57:     GMON_TAG_CG_ARC = 1,
58:     GMON_TAG_BB_COUNT = 2
59:   } GMON_Record_Tag;
60: 
61: struct gmon_hist_hdr
62:   {
63:     char low_pc[sizeof (char *)];       /* base pc address of sample buffer */
64:     char high_pc[sizeof (char *)];      /* max pc address of sampled buffer */
65:     char hist_size[4];                  /* size of sample buffer */
66:     char prof_rate[4];                  /* profiling clock rate */
67:     char dimen[15];                     /* phys. dim., usually "seconds" */
68:     char dimen_abbrev;                  /* usually 's' for "seconds" */
69:   };
70: 
71: struct gmon_cg_arc_record
72:   {
73:     char from_pc[sizeof (char *)];      /* address within caller's body */
74:     char self_pc[sizeof (char *)];      /* address within callee's body */
75:     char count[4];                      /* number of arc traversals */
76:   };
77: 
78: __END_DECLS
79: 
80: #endif /* sys/gmon_out.h */
81: 

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