src/base/trace.hh

   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/core.hh"
  43
  44 namespace Trace {
  45
  46 std::ostream &output();
  47 void setOutput(const std::string &filename);
  48
  49 extern bool enabled;
  50 typedef std::vector<bool> FlagVec;
  51 extern FlagVec flags;
  52 inline bool IsOn(int t) { return flags[t]; }
  53 bool changeFlag(const char *str, bool value);
  54 void dumpStatus();
  55
  56 extern ObjectMatch ignore;
  57 extern const std::string DefaultName;
  58
  59 void dprintf(Tick when, const std::string &name, const char *format,
  60              CPRINTF_DECLARATION);
  61 void 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
  67 struct StringWrap
  68 {
  69     std::string str;
  70     StringWrap(const std::string &s) : str(s) {}
  71     const std::string &operator()() const { return str; }
  72 };
  73
  74 inline 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 DPRINTFS(x,s, ...) do {                                    \
 101     if (DTRACE(x))                                              \
 102         Trace::dprintf(curTick, s->name(), __VA_ARGS__);           \
 103 } while (0)
 104
 105
 106 #define DPRINTFR(x, ...) do {                                   \
 107     if (DTRACE(x))                                              \
 108         Trace::dprintf((Tick)-1, std::string(), __VA_ARGS__);   \
 109 } while (0)
 110
 111 #define DDUMPN(data, count) do {                                \
 112     Trace::dump(curTick, name(), data, count);                  \
 113 } while (0)
 114
 115 #define DPRINTFN(...) do {                                      \
 116     Trace::dprintf(curTick, name(), __VA_ARGS__);               \
 117 } while (0)
 118
 119 #define DPRINTFNR(...) do {                                     \
 120     Trace::dprintf((Tick)-1, string(), __VA_ARGS__);            \
 121 } while (0)
 122
 123 #else // !TRACING_ON
 124
 125 #define DTRACE(x) (false)
 126 #define DDUMP(x, data, count) do {} while (0)
 127 #define DPRINTF(x, ...) do {} while (0)
 128 #define DPRINTFS(x, ...) do {} while (0)
 129 #define DPRINTFR(...) do {} while (0)
 130 #define DDUMPN(data, count) do {} while (0)
 131 #define DPRINTFN(...) do {} while (0)
 132 #define DPRINTFNR(...) do {} while (0)
 133
 134 #endif  // TRACING_ON
 135
 136 #endif // __BASE_TRACE_HH__