uprof/profile.cpp at master · jonforums/uprof · GitHub

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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
// Copyright (c) 2011, Jon Maken
// License: 3-clause BSD
// Revision: 11/19/2011 10:34:02 AM

/*
Intel Open Source License

Copyright (c) 2002-2011 Intel Corporation. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.  Redistributions
in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.  Neither the name of
the Intel Corporation nor the names of its contributors may be used to
endorse or promote products derived from this software without
specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR
ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <fstream>
#include <iomanip>
#include <iostream>
#include <string.h>
#include "pin.H"

extern KNOB<string> ProfileOutputFile;

// Holds instruction count for a single procedure
typedef struct RtnCount
{
    string _name;
    string _image;
    ADDRINT _address;
    RTN _rtn;
    UINT64 _rtnCount;
    UINT64 _icount;
    struct RtnCount* _next;
} RTN_COUNT;

// Linked list of instruction counts for each routine
RTN_COUNT* RtnList = 0;

// This function is called before every instruction is executed
VOID docount(UINT64* counter)
{
    (*counter)++;
}

const char* StripPath(const char* path)
{
    const char* file = strrchr(path,'/');
    if (file)
        return file+1;
    else
        return path;
}

// Pin calls this function every time a new rtn is executed
VOID function_handler(RTN rtn, VOID* v)
{

    // Allocate a counter for this routine
    RTN_COUNT* rc = new RTN_COUNT;

    // The RTN goes away when the image is unloaded, so save it now
    // because we need it in the fini
    rc->_name = RTN_Name(rtn);
    rc->_image = StripPath(IMG_Name(SEC_Img(RTN_Sec(rtn))).c_str());
    rc->_address = RTN_Address(rtn);
    rc->_icount = 0;
    rc->_rtnCount = 0;

    // Add to list of routines
    rc->_next = RtnList;
    RtnList = rc;

    RTN_Open(rtn);

    // Insert a call at the entry point of a routine to increment the call count
    RTN_InsertCall(rtn, IPOINT_BEFORE, (AFUNPTR)docount, IARG_PTR, &(rc->_rtnCount), IARG_END);

    // TODO do I really care about function instruction count?
    // For each instruction of the routine
    for (INS ins = RTN_InsHead(rtn); INS_Valid(ins); ins = INS_Next(ins))
    {
        // Insert a call to docount to increment the instruction counter for this rtn
        INS_InsertCall(ins, IPOINT_BEFORE, (AFUNPTR)docount, IARG_PTR, &(rc->_icount), IARG_END);
    }

    RTN_Close(rtn);
}

// This function is called when the application exits
// It prints the name and count for each procedure
VOID app_exit_handler(INT32 code, VOID* v)
{
    ofstream data(ProfileOutputFile.Value().c_str());

    data << "Procedure" << ","
         << "Image" << ","
         << "Address" << ","
         << "Calls" << ","
         << "Instructions" << endl;

    for (RTN_COUNT* rc = RtnList; rc; rc = rc->_next)
    {
        if (rc->_icount > 0)
            data << rc->_name << ","
                 << rc->_image << ","
                 << hex << rc->_address << dec << ","
                 << rc->_rtnCount << ","
                 << rc->_icount << endl;
    }

}