1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __SYSTEMC_SIMPLE_OBJECT_PRINTER_HH__
#define __SYSTEMC_SIMPLE_OBJECT_PRINTER_HH__
#include <string>
// This include brings in the gem5 statistics classes and DPRINTF mechanism
// which is not necessary, but shows that if they're gem5 aware, models can
// take advantage of these sorts of gem5 mechanisms.
#include "base/statistics.hh"
#include "base/trace.hh"
// Include the standard top level "systemc" header. For models which aren't
// aware of gem5, systemc/ext would be in their include path directly and the
// include wouldn't need the systemc/ext prefix.
#include "systemc/ext/systemc"
// This class is a garden variety sc_module, except that it uses DPRINTFN in
// one of its methods, and maintains a gem5 statistic.
class Printer : public sc_core::sc_module
{
public:
sc_core::sc_in<const char *> input;
std::string prefix;
SC_CTOR(Printer)
{
SC_THREAD(print);
}
void
print()
{
int i = 0;
while (true) {
wait(input.value_changed_event());
// DPRINTFN works as expected here because sc_objects have a name()
// method which DPRINTFN relies on. Normally name() would come from
// a SimObject whose members were in scope, but it doesn't have to.
DPRINTFN("Word %d: %s%s\n", i++, prefix, input.read());
// Manage the gem5 statistic like normal.
numWords++;
}
}
Stats::Scalar numWords;
// Gem5 statistics should be set up during the "end_of_elabortion"
// callback.
void
end_of_elaboration() override
{
numWords
.name(std::string(name()) + ".numWords")
.desc("number of words printed")
;
}
};
#endif // __SYSTEMC_SIMPLE_OBJECT_PRINTER_HH__
|
