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 "arch/stacktrace.hh"
37#include "base/types.hh"
38#include "config/the_isa.hh"
39#include "cpu/static_inst.hh"
40
41class ThreadContext;
42
43class ProfileNode
44{
45  private:
46    friend class FunctionProfile;
47
48    typedef std::map<Addr, ProfileNode *> ChildList;
49    ChildList children;
50
51  public:
52    Counter count;
53
54  public:
55    ProfileNode();
56
57    void dump(const std::string &symbol, uint64_t id,
58              const SymbolTable *symtab, std::ostream &os) const;
59    void clear();
60};
61
62class Callback;
63class FunctionProfile
64{
65  private:
66    Callback *reset;
67    const SymbolTable *symtab;
68    ProfileNode top;
69    std::map<Addr, Counter> pc_count;
70    TheISA::StackTrace trace;
71
72  public:
73    FunctionProfile(const SymbolTable *symtab);
74    ~FunctionProfile();
75
76    ProfileNode *consume(ThreadContext *tc, const StaticInstPtr &inst);
77    ProfileNode *consume(const std::vector<Addr> &stack);
78    void clear();
79    void dump(ThreadContext *tc, std::ostream &out) const;
80    void sample(ProfileNode *node, Addr pc);
81};
82
83inline ProfileNode *
84FunctionProfile::consume(ThreadContext *tc, const StaticInstPtr &inst)
85{
86    if (!trace.trace(tc, inst))
87        return NULL;
88    trace.dprintf();
89    return consume(trace.getstack());
90}
91
92#endif // __CPU_PROFILE_HH__
93