process.cc revision 11793 
1/*
2 * Copyright (c) 2003-2005 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 *          Gabe Black
30 *          Ali Saidi
31 */
32
33#include "arch/sparc/linux/process.hh"
34
35#include "arch/sparc/isa_traits.hh"
36#include "arch/sparc/registers.hh"
37#include "base/trace.hh"
38#include "cpu/thread_context.hh"
39#include "kern/linux/linux.hh"
40#include "sim/process.hh"
41#include "sim/syscall_emul.hh"
42
43using namespace std;
44using namespace SparcISA;
45
46SyscallDesc*
47SparcLinuxProcess::getDesc(int callnum)
48{
49    if (callnum < 0 || callnum >= Num_Syscall_Descs)
50        return NULL;
51    return &syscallDescs[callnum];
52}
53
54SyscallDesc*
55SparcLinuxProcess::getDesc32(int callnum)
56{
57    if (callnum < 0 || callnum >= Num_Syscall32_Descs)
58        return NULL;
59    return &syscall32Descs[callnum];
60}
61
62Sparc32LinuxProcess::Sparc32LinuxProcess(LiveProcessParams * params,
63                                         ObjectFile *objFile)
64    : Sparc32LiveProcess(params, objFile)
65{}
66
67void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
68{
69    switch (trapNum) {
70      case 0x10: //Linux 32 bit syscall trap
71        tc->syscall(tc->readIntReg(1));
72        break;
73      default:
74        SparcLiveProcess::handleTrap(trapNum, tc);
75    }
76}
77
78Sparc64LinuxProcess::Sparc64LinuxProcess(LiveProcessParams * params,
79                                         ObjectFile *objFile)
80    : Sparc64LiveProcess(params, objFile)
81{}
82
83void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
84{
85    switch (trapNum) {
86      // case 0x10: // Linux 32 bit syscall trap
87      case 0x6d: // Linux 64 bit syscall trap
88        tc->syscall(tc->readIntReg(1));
89        break;
90      default:
91        SparcLiveProcess::handleTrap(trapNum, tc);
92    }
93}
94