process.hh revision 12030:160fc15c495f 
1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * Copyright (c) 2017 The University of Virginia
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Authors: Gabe Black
30 *          Ali Saidi
31 *          Alec Roelke
32 */
33
34#ifndef __RISCV_PROCESS_HH__
35#define __RISCV_PROCESS_HH__
36
37#include <string>
38#include <vector>
39
40#include "mem/page_table.hh"
41#include "sim/process.hh"
42
43class ObjectFile;
44class System;
45
46class RiscvProcess : public Process
47{
48  protected:
49    RiscvProcess(ProcessParams * params, ObjectFile *objFile);
50
51    void initState() override;
52
53    template<class IntType>
54    void argsInit(int pageSize);
55
56  public:
57    RiscvISA::IntReg getSyscallArg(ThreadContext *tc, int &i) override;
58    /// Explicitly import the otherwise hidden getSyscallArg
59    using Process::getSyscallArg;
60    void setSyscallArg(ThreadContext *tc, int i,
61                       RiscvISA::IntReg val) override;
62    void setSyscallReturn(ThreadContext *tc,
63                          SyscallReturn return_value) override;
64
65    virtual bool mmapGrowsDown() const override { return false; }
66};
67
68/* No architectural page table defined for this ISA */
69typedef NoArchPageTable ArchPageTable;
70
71
72#endif // __RISCV_PROCESS_HH__
73