1/*
2* Copyright (c) 2011-2012 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder.  You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2007-2008 The Florida State University
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Stephen Hines
41 */
42
43#ifndef __ARM_LINUX_PROCESS_HH__
44#define __ARM_LINUX_PROCESS_HH__
45
46#include <vector>
47
48#include "arch/arm/process.hh"
49
50class ArmLinuxProcessBits
51{
52  protected:
53    SyscallDesc* getLinuxDesc(int callnum);
54
55    struct SyscallTable
56    {
57        int base;
58        SyscallDesc *descs;
59        int size;
60
61        SyscallDesc *getDesc(int offset) const;
62    };
63
64    std::vector<SyscallTable> syscallTables;
65};
66
67/// A process with emulated Arm/Linux syscalls.
68class ArmLinuxProcess32 : public ArmProcess32, public ArmLinuxProcessBits
69{
70  public:
71    ArmLinuxProcess32(ProcessParams * params, ObjectFile *objFile,
72                      ObjectFile::Arch _arch);
73
74    void initState();
75
76    /// Explicitly import the otherwise hidden getSyscallArg
77    using ArmProcess::getSyscallArg;
78
79    /// A page to hold "kernel" provided functions. The name might be wrong.
80    static const Addr commPage;
81
82    SyscallDesc* getDesc(int callnum);
83};
84
85/// A process with emulated Arm/Linux syscalls.
86class ArmLinuxProcess64 : public ArmProcess64, public ArmLinuxProcessBits
87{
88  public:
89    ArmLinuxProcess64(ProcessParams * params, ObjectFile *objFile,
90                      ObjectFile::Arch _arch);
91
92    void initState();
93    SyscallDesc* getDesc(int callnum);
94};
95
96#endif // __ARM_LINUX_PROCESS_HH__
97