profile.hh revision 2665:a124942bacb8 
1/*
2 * Copyright (c) 2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31#ifndef __CPU_PROFILE_HH__
32#define __CPU_PROFILE_HH__
33
34#include <map>
35
36#include "cpu/static_inst.hh"
37#include "sim/host.hh"
38#include "arch/stacktrace.hh"
39
40class ExecContext;
41
42class ProfileNode
43{
44  private:
45    friend class FunctionProfile;
46
47    typedef std::map<Addr, ProfileNode *> ChildList;
48    ChildList children;
49
50  public:
51    Counter count;
52
53  public:
54    ProfileNode();
55
56    void dump(const std::string &symbol, uint64_t id,
57              const SymbolTable *symtab, std::ostream &os) const;
58    void clear();
59};
60
61class Callback;
62class FunctionProfile
63{
64  private:
65    Callback *reset;
66    const SymbolTable *symtab;
67    ProfileNode top;
68    std::map<Addr, Counter> pc_count;
69    StackTrace trace;
70
71  public:
72    FunctionProfile(const SymbolTable *symtab);
73    ~FunctionProfile();
74
75    ProfileNode *consume(ExecContext *xc, StaticInstPtr inst);
76    ProfileNode *consume(const std::vector<Addr> &stack);
77    void clear();
78    void dump(ExecContext *xc, std::ostream &out) const;
79    void sample(ProfileNode *node, Addr pc);
80};
81
82inline ProfileNode *
83FunctionProfile::consume(ExecContext *xc, StaticInstPtr inst)
84{
85    if (!trace.trace(xc, inst))
86        return NULL;
87    trace.dprintf();
88    return consume(trace.getstack());
89}
90
91#endif // __CPU_PROFILE_HH__
92