49009f170a
Moves aux_vector into its own .hh and .cc files just to get it out of the already crowded Process files. Arguably, it could stay there, but it's probably better just to move it and give it files. The changeset looks ugly around the Process header file, but the goal here is to move methods and members around so that they're not defined randomly throughout the entire header file. I expect this is likely one of the reasons why I several unused variables related to this class. So, the methods are declared first followed by members. I've tried to aggregate them together so that similar entries reside near one another. There are other changes coming to this code so this is by no means the final product.
149 lines
4.9 KiB
C++
149 lines
4.9 KiB
C++
/*
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* Copyright (c) 2007 The Hewlett-Packard Development Company
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* All rights reserved.
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Gabe Black
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*/
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#ifndef __ARCH_X86_PROCESS_HH__
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#define __ARCH_X86_PROCESS_HH__
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#include <string>
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#include <vector>
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#include "sim/aux_vector.hh"
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#include "sim/process.hh"
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#include "mem/multi_level_page_table.hh"
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class SyscallDesc;
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namespace X86ISA
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{
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enum X86AuxiliaryVectorTypes {
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M5_AT_SYSINFO = 32,
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M5_AT_SYSINFO_EHDR = 33
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};
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class X86Process : public Process
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{
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protected:
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Addr _gdtStart;
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Addr _gdtSize;
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SyscallDesc *syscallDescs;
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const int numSyscallDescs;
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X86Process(ProcessParams * params, ObjectFile *objFile,
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SyscallDesc *_syscallDescs, int _numSyscallDescs);
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template<class IntType>
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void argsInit(int pageSize,
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std::vector<AuxVector<IntType> > extraAuxvs);
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public:
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Addr gdtStart()
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{ return _gdtStart; }
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Addr gdtSize()
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{ return _gdtSize; }
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SyscallDesc* getDesc(int callnum);
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void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
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};
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class X86_64Process : public X86Process
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{
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protected:
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X86_64Process(ProcessParams *params, ObjectFile *objFile,
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SyscallDesc *_syscallDescs, int _numSyscallDescs);
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class VSyscallPage
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{
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public:
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Addr base;
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Addr size;
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Addr vtimeOffset;
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Addr vgettimeofdayOffset;
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};
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VSyscallPage vsyscallPage;
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public:
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void argsInit(int intSize, int pageSize);
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void initState();
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X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
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/// Explicitly import the otherwise hidden getSyscallArg
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using Process::getSyscallArg;
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void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val);
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};
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class I386Process : public X86Process
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{
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protected:
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I386Process(ProcessParams *params, ObjectFile *objFile,
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SyscallDesc *_syscallDescs, int _numSyscallDescs);
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class VSyscallPage
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{
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public:
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Addr base;
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Addr size;
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Addr vsyscallOffset;
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Addr vsysexitOffset;
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};
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VSyscallPage vsyscallPage;
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public:
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void argsInit(int intSize, int pageSize);
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void initState();
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void syscall(int64_t callnum, ThreadContext *tc);
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X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
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X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width);
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void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val);
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};
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/**
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* Declaration of architectural page table for x86.
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*
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* These page tables are stored in system memory and respect x86 specification.
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*/
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typedef MultiLevelPageTable<PageTableOps> ArchPageTable;
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}
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#endif // __ARCH_X86_PROCESS_HH__
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