profile.hh revision 2632:1bb2f91485ea 
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
29#ifndef __CPU_PROFILE_HH__
30#define __CPU_PROFILE_HH__
31
32#include <map>
33
34#include "cpu/static_inst.hh"
35#include "sim/host.hh"
36#include "arch/stacktrace.hh"
37
38class ExecContext;
39
40class ProfileNode
41{
42  private:
43    friend class FunctionProfile;
44
45    typedef std::map<Addr, ProfileNode *> ChildList;
46    ChildList children;
47
48  public:
49    Counter count;
50
51  public:
52    ProfileNode();
53
54    void dump(const std::string &symbol, uint64_t id,
55              const SymbolTable *symtab, std::ostream &os) const;
56    void clear();
57};
58
59class Callback;
60class FunctionProfile
61{
62  private:
63    Callback *reset;
64    const SymbolTable *symtab;
65    ProfileNode top;
66    std::map<Addr, Counter> pc_count;
67    StackTrace trace;
68
69  public:
70    FunctionProfile(const SymbolTable *symtab);
71    ~FunctionProfile();
72
73    ProfileNode *consume(ExecContext *xc, StaticInstPtr inst);
74    ProfileNode *consume(const std::vector<Addr> &stack);
75    void clear();
76    void dump(ExecContext *xc, std::ostream &out) const;
77    void sample(ProfileNode *node, Addr pc);
78};
79
80inline ProfileNode *
81FunctionProfile::consume(ExecContext *xc, StaticInstPtr inst)
82{
83    if (!trace.trace(xc, inst))
84        return NULL;
85    trace.dprintf();
86    return consume(trace.getstack());
87}
88
89#endif // __CPU_PROFILE_HH__
90