root.cc revision 488 
112027Sjungma@eit.uni-kl.de/*
212027Sjungma@eit.uni-kl.de * Copyright (c) 2003 The Regents of The University of Michigan
312027Sjungma@eit.uni-kl.de * All rights reserved.
412027Sjungma@eit.uni-kl.de *
512027Sjungma@eit.uni-kl.de * 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#include <sys/types.h>
30#include <sys/stat.h>
31
32#include <cstring>
33#include <fstream>
34#include <list>
35#include <string>
36#include <vector>
37
38#include "base/files.hh"
39#include "base/misc.hh"
40#include "sim/universe.hh"
41#include "sim/host.hh"
42#include "sim/param.hh"
43
44using namespace std;
45
46Tick curTick = 0;
47Tick ticksPerSecond;
48double __ticksPerMS;
49double __ticksPerUS;
50double __ticksPerNS;
51
52string outputDirectory;
53ostream *outputStream;
54
55class UniverseParamContext : public ParamContext
56{
57  private:
58    ofstream outputFile;
59
60  public:
61    UniverseParamContext(const string &is) : ParamContext(is) {}
62    void checkParams();
63};
64
65UniverseParamContext universe("Universe");
66
67Param<Tick> universe_freq(&universe, "frequency", "tick frequency",
68                          200000000);
69
70Param<string> universe_output_dir(&universe, "output_dir",
71                                  "directory to output data to");
72Param<string> universe_output_file(&universe, "output_file",
73                                   "file to dump simulator output to");
74
75void
76UniverseParamContext::checkParams()
77{
78    ticksPerSecond = universe_freq;
79    double freq = double(ticksPerSecond);
80    __ticksPerMS = freq / 1.0e3;
81    __ticksPerUS = freq / 1.0e6;
82    __ticksPerNS = freq / 1.0e9;
83
84    if (universe_output_dir.isValid()) {
85        outputDirectory = universe_output_dir;
86
87        // guarantee that directory ends with a '/'
88        if (outputDirectory[outputDirectory.size() - 1] != '/')
89            outputDirectory += "/";
90
91        if (mkdir(outputDirectory.c_str(), 0777) < 0) {
92            if (errno != EEXIST) {
93                panic("%s\ncould not make output directory: %s\n",
94                      strerror(errno), outputDirectory);
95            }
96        }
97    }
98
99    string filename;
100    if (universe_output_file.isValid()) {
101        string f = universe_output_file;
102        if (f != "stdout" && f != "cout" && f != "stderr" && f != "cerr")
103            filename = outputDirectory + f;
104        else
105            filename = f;
106    } else {
107        if (outputDirectory.empty())
108            filename = "stdout";
109        else
110            filename = outputDirectory + "output.txt";
111    }
112
113    if (filename == "stdout" || filename == "cout")
114        outputStream = &cout;
115    else if (filename == "stderr" || filename == "cerr")
116        outputStream = &cerr;
117    else {
118        outputFile.open(filename.c_str(), ios::trunc);
119        outputStream = &outputFile;
120    }
121}
122