trace.hh revision 4046:ef34b290091e 
1/*
2 * Copyright (c) 2001-2006 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 *          Steve Reinhardt
30 */
31
32#ifndef __BASE_TRACE_HH__
33#define __BASE_TRACE_HH__
34
35#include <string>
36#include <vector>
37
38#include "base/cprintf.hh"
39#include "base/match.hh"
40#include "base/traceflags.hh"
41#include "sim/host.hh"
42#include "sim/root.hh"
43
44namespace Trace {
45
46std::ostream &output();
47void setOutput(const std::string &filename);
48
49extern bool enabled;
50typedef std::vector<bool> FlagVec;
51extern FlagVec flags;
52inline bool IsOn(int t) { return flags[t]; }
53bool changeFlag(const char *str, bool value);
54void dumpStatus();
55
56extern ObjectMatch ignore;
57extern const std::string DefaultName;
58
59void dprintf(Tick when, const std::string &name, const char *format,
60             CPRINTF_DECLARATION);
61void dump(Tick when, const std::string &name, const void *data, int len);
62
63/* namespace Trace */ }
64
65// This silly little class allows us to wrap a string in a functor
66// object so that we can give a name() that DPRINTF will like
67struct StringWrap
68{
69    std::string str;
70    StringWrap(const std::string &s) : str(s) {}
71    const std::string &operator()() const { return str; }
72};
73
74inline const std::string &name() { return Trace::DefaultName; }
75
76//
77// DPRINTF is a debugging trace facility that allows one to
78// selectively enable tracing statements.  To use DPRINTF, there must
79// be a function or functor called name() that returns a const
80// std::string & in the current scope.
81//
82// If you desire that the automatic printing not occur, use DPRINTFR
83// (R for raw)
84//
85
86#if TRACING_ON
87
88#define DTRACE(x) (Trace::IsOn(Trace::x) && Trace::enabled)
89
90#define DDUMP(x, data, count) do {                              \
91    if (DTRACE(x))                                              \
92        Trace::dump(curTick, name(), data, count);              \
93} while (0)
94
95#define DPRINTF(x, ...) do {                                    \
96    if (DTRACE(x))                                              \
97        Trace::dprintf(curTick, name(), __VA_ARGS__);           \
98} while (0)
99
100#define DPRINTFR(x, ...) do {                                   \
101    if (DTRACE(x))                                              \
102        Trace::dprintf((Tick)-1, std::string(), __VA_ARGS__);   \
103} while (0)
104
105#define DDUMPN(data, count) do {                                \
106    Trace::dump(curTick, name(), data, count);                  \
107} while (0)
108
109#define DPRINTFN(...) do {                                      \
110    Trace::dprintf(curTick, name(), __VA_ARGS__);               \
111} while (0)
112
113#define DPRINTFNR(...) do {                                     \
114    Trace::dprintf((Tick)-1, string(), __VA_ARGS__);            \
115} while (0)
116
117#else // !TRACING_ON
118
119#define DTRACE(x) (false)
120#define DDUMP(x, data, count) do {} while (0)
121#define DPRINTF(x, ...) do {} while (0)
122#define DPRINTFR(...) do {} while (0)
123#define DDUMPN(data, count) do {} while (0)
124#define DPRINTFN(...) do {} while (0)
125#define DPRINTFNR(...) do {} while (0)
126
127#endif	// TRACING_ON
128
129#endif // __BASE_TRACE_HH__
130