tracechild.hh revision 8118:92229cb0cee9 
1/*
2 * Copyright (c) 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: Gabe Black
29 */
30
31#ifndef REGSTATE_I686_HH
32#define REGSTATE_I686_HH
33
34#include <sys/user.h>
35#include <sys/types.h>
36#include <sys/ptrace.h>
37#include <cassert>
38#include <string>
39
40#include "base/tracechild.hh"
41
42class I686TraceChild : public TraceChild
43{
44  public:
45    enum RegNum
46    {
47        //GPRs
48        EAX, EBX, ECX, EDX,
49        //Index registers
50        ESI, EDI,
51        //Base pointer and stack pointer
52        EBP, ESP,
53        //Segmentation registers
54        CS, DS, ES, FS, GS, SS,
55        //PC
56        EIP,
57        numregs
58    };
59  private:
60    int64_t getRegs(user_regs_struct & myregs, int num);
61    user_regs_struct regs;
62    user_regs_struct oldregs;
63    bool regDiffSinceUpdate[numregs];
64
65  protected:
66    bool update(int pid);
67
68  public:
69
70    I686TraceChild();
71
72    int64_t getRegVal(int num);
73    int64_t getOldRegVal(int num);
74    uint64_t getPC() {return getRegVal(EIP);}
75    uint64_t getSP() {return getRegVal(ESP);}
76    bool sendState(int socket);
77    std::ostream &
78    outputStartState(std::ostream & output)
79    {
80        output << "Printing i686 initial state not yet implemented"
81               << std::endl;
82        return output;
83    }
84};
85
86#endif
87