process.hh revision 4188:6a9ac3b35285 
1/*
2 * Copyright (c) 2003-2004 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: Steve Reinhardt
29 */
30
31#ifndef __SPARC_LINUX_PROCESS_HH__
32#define __SPARC_LINUX_PROCESS_HH__
33
34#include "arch/sparc/linux/linux.hh"
35#include "arch/sparc/syscallreturn.hh"
36#include "arch/sparc/process.hh"
37#include "sim/process.hh"
38
39namespace SparcISA {
40
41//This contains all of the common elements of a SPARC Linux process which
42//are not shared by other operating systems. The rest come from the common
43//SPARC process class.
44class SparcLinuxProcess
45{
46  public:
47    SparcLinuxProcess();
48
49     /// Array of syscall descriptors, indexed by call number.
50    static SyscallDesc syscallDescs[];
51
52     /// Array of 32 bit compatibility syscall descriptors,
53     /// indexed by call number.
54    static SyscallDesc syscall32Descs[];
55
56    SyscallDesc* getDesc(int callnum);
57    SyscallDesc* getDesc32(int callnum);
58
59    const int Num_Syscall_Descs;
60    const int Num_Syscall32_Descs;
61};
62
63/// A process with emulated SPARC/Linux syscalls.
64class Sparc32LinuxProcess : public SparcLinuxProcess, public Sparc32LiveProcess
65{
66  public:
67    /// Constructor.
68    Sparc32LinuxProcess(const std::string &name,
69                      ObjectFile *objFile,
70                      System * system,
71                      int stdin_fd, int stdout_fd, int stderr_fd,
72                      std::vector<std::string> &argv,
73                      std::vector<std::string> &envp,
74                      const std::string &cwd,
75                      uint64_t _uid, uint64_t _euid,
76                      uint64_t _gid, uint64_t _egid,
77                      uint64_t _pid, uint64_t _ppid);
78
79    SyscallDesc* getDesc(int callnum)
80    {
81        return SparcLinuxProcess::getDesc32(callnum);
82    }
83
84    void handleTrap(int trapNum, ThreadContext *tc);
85};
86
87/// A process with emulated 32 bit SPARC/Linux syscalls.
88class Sparc64LinuxProcess : public SparcLinuxProcess, public Sparc64LiveProcess
89{
90  public:
91    /// Constructor.
92    Sparc64LinuxProcess(const std::string &name,
93                      ObjectFile *objFile,
94                      System * system,
95                      int stdin_fd, int stdout_fd, int stderr_fd,
96                      std::vector<std::string> &argv,
97                      std::vector<std::string> &envp,
98                      const std::string &cwd,
99                      uint64_t _uid, uint64_t _euid,
100                      uint64_t _gid, uint64_t _egid,
101                      uint64_t _pid, uint64_t _ppid);
102
103    SyscallDesc* getDesc(int callnum)
104    {
105        return SparcLinuxProcess::getDesc(callnum);
106    }
107
108    void handleTrap(int trapNum, ThreadContext *tc);
109};
110
111SyscallReturn getresuidFunc(SyscallDesc *desc, int num,
112                                 LiveProcess *p, ThreadContext *tc);
113
114} // namespace SparcISA
115#endif // __SPARC_LINUX_PROCESS_HH__
116