1/*
2 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * This software was developed by the University of Cambridge Computer
6 * Laboratory as part of the CTSRD Project, with support from the UK Higher
7 * Education Innovation Fund (HEIF).
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are
11 * met: redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer;
13 * redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution;
16 * neither the name of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef __ARCH_ARM_FREEBSD_PROCESS_HH__
34#define __ARCH_ARM_FREEBSD_PROCESS_HH__
35
36#include <vector>
37
38#include "arch/arm/process.hh"
39
40class ArmFreebsdProcessBits
41{
42  protected:
43    SyscallDesc* getFreebsdDesc(int callnum);
44
45    struct SyscallTable
46    {
47        int base;
48        SyscallDesc *descs;
49        int size;
50
51        SyscallDesc *getDesc(int offset) const;
52    };
53
54    std::vector<SyscallTable> syscallTables;
55};
56
57/// A process with emulated Arm/Freebsd syscalls.
58class ArmFreebsdProcess32 : public ArmProcess32, public ArmFreebsdProcessBits
59{
60  public:
61    ArmFreebsdProcess32(ProcessParams * params, ObjectFile *objFile,
62                        ObjectFile::Arch _arch);
63
64    void initState();
65
66    /// Explicitly import the otherwise hidden getSyscallArg
67    using ArmProcess::getSyscallArg;
68
69    /// A page to hold "kernel" provided functions. The name might be wrong.
70    static const Addr commPage;
71
72    SyscallDesc* getDesc(int callnum);
73};
74
75/// A process with emulated Arm/Freebsd syscalls.
76class ArmFreebsdProcess64 : public ArmProcess64, public ArmFreebsdProcessBits
77{
78  public:
79    ArmFreebsdProcess64(ProcessParams * params, ObjectFile *objFile,
80                        ObjectFile::Arch _arch);
81
82    void initState();
83    SyscallDesc* getDesc(int callnum);
84};
85
86#endif // __ARCH_ARM_FREEBSD_PROCESS_HH__
87