xref: /gem5/src/arch/arm/linux/process.hh

/*
 * Copyright (c) 2007-2008 The Florida State University
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Authors: Stephen Hines
 */

#ifndef __ARM_LINUX_PROCESS_HH__
#define __ARM_LINUX_PROCESS_HH__

#include "arch/arm/process.hh"

/// A process with emulated Arm/Linux syscalls.
class ArmLinuxProcess : public ArmLiveProcess
{
  public:
    ArmLinuxProcess(LiveProcessParams * params, ObjectFile *objFile,
                    ObjectFile::Arch _arch);

    virtual SyscallDesc* getDesc(int callnum);

    void initState();

    ArmISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
    /// Explicitly import the otherwise hidden getSyscallArg
    using ArmLiveProcess::getSyscallArg;
    void setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val);

    /// The target system's hostname.
    static const char *hostname;

    /// A page to hold "kernel" provided functions. The name might be wrong.
    static const Addr commPage;

    /// Array of syscall descriptors, indexed by call number.
    static SyscallDesc syscallDescs[];

    /// Array of "arm private" syscall descriptors.
    static SyscallDesc privSyscallDescs[];

    const int Num_Syscall_Descs;

    const int Num_Priv_Syscall_Descs;
};

#endif // __ARM_LINUX_PROCESS_HH__