1/*
2 * Copyright (c) 2006-2009 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: Gabe Black
29 */
30
31#ifndef __CPU_NATIVETRACE_HH__
32#define __CPU_NATIVETRACE_HH__
33
34#include <unistd.h>
35
36#include <cerrno>
37
38#include "base/socket.hh"
39#include "base/trace.hh"
40#include "base/types.hh"
41#include "cpu/exetrace.hh"
42#include "cpu/static_inst.hh"
43
44class ThreadContext;
45
46namespace Trace {
47
48class NativeTrace;
49
50class NativeTraceRecord : public ExeTracerRecord
51{
52  protected:
53    NativeTrace * parent;
54
55  public:
56    NativeTraceRecord(NativeTrace * _parent,
57               Tick _when, ThreadContext *_thread,
58               const StaticInstPtr _staticInst, TheISA::PCState _pc,
59               const StaticInstPtr _macroStaticInst = NULL)
60        : ExeTracerRecord(_when, _thread, _staticInst, _pc, _macroStaticInst),
61        parent(_parent)
62    {
63    }
64
65    void dump();
66};
67
68class NativeTrace : public ExeTracer
69{
70  protected:
71    int fd;
72
73    ListenSocket native_listener;
74
75  public:
76
77    NativeTrace(const Params *p);
78    virtual ~NativeTrace() {}
79
80    NativeTraceRecord *
81    getInstRecord(Tick when, ThreadContext *tc,
82            const StaticInstPtr staticInst, TheISA::PCState pc,
83            const StaticInstPtr macroStaticInst = NULL)
84    {
85        return new NativeTraceRecord(this, when, tc,
86                staticInst, pc, macroStaticInst);
87    }
88
89    template<class T>
90    bool
91    checkReg(const char * regName, T &val, T &realVal)
92    {
93        if (val != realVal)
94        {
95            DPRINTFN("Register %s should be %#x but is %#x.\n",
96                    regName, realVal, val);
97            return false;
98        }
99        return true;
100    }
101
102    void
103    read(void *ptr, size_t size)
104    {
105        size_t soFar = 0;
106        while (soFar < size) {
107            ssize_t res = ::read(fd, (uint8_t *)ptr + soFar, size - soFar);
108            if (res < 0)
109                panic("Read call failed! %s\n", strerror(errno));
110            else
111                soFar += res;
112        }
113    }
114
115    virtual void
116    check(NativeTraceRecord *record) = 0;
117};
118
119} // namespace Trace
120
121#endif // __CPU_NATIVETRACE_HH__
122