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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* Copyright (c) 2002-2004 The Regents of The University of Michigan
* All rights reserved.
*
* 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.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <cstring>
#include <fstream>
#include <list>
#include <string>
#include <vector>
#include "base/misc.hh"
#include "sim/builder.hh"
#include "sim/host.hh"
#include "sim/sim_object.hh"
#include "sim/universe.hh"
using namespace std;
Tick curTick = 0;
Tick ticksPerSecond;
double __ticksPerMS;
double __ticksPerUS;
double __ticksPerNS;
double __ticksPerPS;
string outputDirectory;
ostream *outputStream;
ostream *configStream;
// Dummy Object
class Root : public SimObject
{
public:
Root(const std::string &name) : SimObject(name) {}
};
Root *root = NULL;
std::ostream *
makeOutputStream(std::string &name)
{
if (name == "cerr" || name == "stderr")
return &std::cerr;
if (name == "cout" || name == "stdout")
return &std::cout;
string path = (name[0] != '/') ? outputDirectory + name : name;
// have to dynamically allocate a stream since we're going to
// return it... though the caller can't easily free it since it
// may be cerr or cout. need GC!
ofstream *s = new ofstream(path.c_str(), ios::trunc);
if (!s->is_open())
fatal("Cannot open file %s", path);
return s;
}
void
closeOutputStream(std::ostream *os)
{
// can't close cerr or cout
if (os == &std::cerr || os == &std::cout)
return;
// can only close ofstreams, not generic ostreams, so try to
// downcast and close only if the downcast succeeds
std::ofstream *ofs = dynamic_cast<std::ofstream *>(os);
if (ofs)
ofs->close();
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
Param<bool> full_system;
Param<Tick> frequency;
Param<string> output_dir;
Param<string> output_file;
Param<string> config_output_file;
END_DECLARE_SIM_OBJECT_PARAMS(Root)
BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
INIT_PARAM_DFLT(full_system, "full system simulation", true),
INIT_PARAM_DFLT(frequency, "tick frequency", 200000000),
INIT_PARAM_DFLT(output_dir, "directory to output data to", "."),
INIT_PARAM_DFLT(output_file, "file to dump simulator output to", "cout"),
INIT_PARAM_DFLT(config_output_file, "file to dump simulator config to",
"m5config.out")
END_INIT_SIM_OBJECT_PARAMS(Root)
CREATE_SIM_OBJECT(Root)
{
#ifdef FULL_SYSTEM
if (!bool(full_system))
panic("FULL_SYSTEM compiled and configuration not full_system");
#else
if (bool(full_system))
panic("FULL_SYSTEM not compiled but configuration is full_system");
#endif
if (root)
panic("only one root object allowed!");
root = new Root(getInstanceName());
ticksPerSecond = frequency;
double freq = double(ticksPerSecond);
__ticksPerMS = freq / 1.0e3;
__ticksPerUS = freq / 1.0e6;
__ticksPerNS = freq / 1.0e9;
__ticksPerPS = freq / 1.0e12;
if (output_dir.isValid()) {
outputDirectory = output_dir;
// guarantee that directory ends with a '/'
if (outputDirectory[outputDirectory.size() - 1] != '/')
outputDirectory += "/";
if (mkdir(outputDirectory.c_str(), 0777) < 0) {
if (errno != EEXIST) {
panic("%s\ncould not make output directory: %s\n",
strerror(errno), outputDirectory);
}
}
}
outputStream = makeOutputStream(output_file);
configStream = config_output_file.isValid()
? makeOutputStream(config_output_file)
: outputStream;
return root;
}
REGISTER_SIM_OBJECT("Root", Root)
|
