profile.hh revision 1977 
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 "targetarch/stacktrace.hh"
37
38class ProfileNode
39{
40  private:
41    friend class FunctionProfile;
42
43    typedef std::map<Addr, ProfileNode *> ChildList;
44    ChildList children;
45
46  public:
47    int count;
48
49  public:
50    ProfileNode();
51
52    void dump(const std::string &symbol, uint64_t id,
53              const SymbolTable *symtab, std::ostream &os) const;
54    void clear();
55};
56
57class FunctionProfile
58{
59  private:
60    const SymbolTable *symtab;
61    ProfileNode top;
62    std::map<Addr, Counter> pc_count;
63    StackTrace trace;
64
65  public:
66    FunctionProfile(const SymbolTable *symtab);
67    ~FunctionProfile();
68
69    ProfileNode *consume(ExecContext *xc, StaticInstPtr<TheISA> inst);
70    ProfileNode *consume(const std::vector<Addr> &stack);
71    void clear();
72    void dump(ExecContext *xc, std::ostream &out) const;
73    void sample(ProfileNode *node, Addr pc);
74};
75
76inline ProfileNode *
77FunctionProfile::consume(ExecContext *xc, StaticInstPtr<TheISA> inst)
78{
79    if (!trace.trace(xc, inst))
80        return NULL;
81    trace.dprintf();
82    return consume(trace.getstack());
83}
84
85#endif // __CPU_PROFILE_HH__
86