src/arch/sparc/linux/process.hh

   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/process.hh"
  36 #include "sim/process.hh"
  37
  38 namespace SparcISA {
  39
  40 // This contains all of the common elements of a SPARC Linux process which
  41 // are not shared by other operating systems. The rest come from the common
  42 // SPARC process class.
  43 class SparcLinuxProcess
  44 {
  45   public:
  46      /// Array of syscall descriptors, indexed by call number.
  47     static SyscallDesc syscallDescs[];
  48
  49      /// Array of 32 bit compatibility syscall descriptors,
  50      /// indexed by call number.
  51     static SyscallDesc syscall32Descs[];
  52
  53     SyscallDesc* getDesc(int callnum);
  54     SyscallDesc* getDesc32(int callnum);
  55
  56     static const int Num_Syscall_Descs;
  57     static const int Num_Syscall32_Descs;
  58 };
  59
  60 /// A process with emulated SPARC/Linux syscalls.
  61 class Sparc32LinuxProcess : public SparcLinuxProcess, public Sparc32Process
  62 {
  63   public:
  64     /// Constructor.
  65     Sparc32LinuxProcess(ProcessParams * params, ObjectFile *objFile);
  66
  67     SyscallDesc*
  68     getDesc(int callnum)
  69     {
  70         return SparcLinuxProcess::getDesc32(callnum);
  71     }
  72
  73     void handleTrap(int trapNum, ThreadContext *tc);
  74 };
  75
  76 /// A process with emulated 32 bit SPARC/Linux syscalls.
  77 class Sparc64LinuxProcess : public SparcLinuxProcess, public Sparc64Process
  78 {
  79   public:
  80     /// Constructor.
  81     Sparc64LinuxProcess(ProcessParams * params, ObjectFile *objFile);
  82
  83     SyscallDesc*
  84     getDesc(int callnum)
  85     {
  86         return SparcLinuxProcess::getDesc(callnum);
  87     }
  88
  89     void handleTrap(int trapNum, ThreadContext *tc);
  90 };
  91
  92 SyscallReturn getresuidFunc(SyscallDesc *desc, int num,
  93                             Process *p, ThreadContext *tc);
  94
  95 } // namespace SparcISA
  96 #endif // __SPARC_LINUX_PROCESS_HH__