1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (c) 1994 David Mosberger-Tang.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* __bb_exit_func() dumps all the basic-block statistics linked into
* the bb_head chain to .d files.
*/
#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 (void)
{
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;
} /* if */
bcopy(GMON_MAGIC, &ghdr.cookie[0], 4);
bcopy(&version, &ghdr.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);
} /* for */
} /* for */
fclose (fp);
} /* __bb_exit_func */
/*** end of __bb_exit_func.c ***/
|
