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/*
* Copyright (c) 2003-2004 The Regents of The University of Michigan
* 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: Gabe Black
* Ali Saidi
*/
#ifndef __SPARC_PROCESS_HH__
#define __SPARC_PROCESS_HH__
#include <string>
#include <vector>
#include "sim/byteswap.hh"
#include "sim/process.hh"
class ObjectFile;
class System;
class SparcLiveProcess : public LiveProcess
{
protected:
const Addr StackBias;
//The locations of the fill and spill handlers
Addr fillStart, spillStart;
SparcLiveProcess(LiveProcessParams * params,
ObjectFile *objFile, Addr _StackBias);
void initState();
template<class IntType>
void argsInit(int pageSize);
public:
//Handles traps which request services from the operating system
virtual void handleTrap(int trapNum, ThreadContext *tc);
Addr readFillStart()
{ return fillStart; }
Addr readSpillStart()
{ return spillStart; }
virtual void flushWindows(ThreadContext *tc) = 0;
void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
};
class Sparc32LiveProcess : public SparcLiveProcess
{
protected:
Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
SparcLiveProcess(params, objFile, 0)
{
// Set up stack. On SPARC Linux, stack goes from the top of memory
// downward, less the hole for the kernel address space.
stack_base = (Addr)0xf0000000ULL;
// Set up region for mmaps.
mmap_start = mmap_end = 0x70000000;
}
void initState();
public:
void argsInit(int intSize, int pageSize);
void flushWindows(ThreadContext *tc);
SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
};
class Sparc64LiveProcess : public SparcLiveProcess
{
protected:
Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
SparcLiveProcess(params, objFile, 2047)
{
// Set up stack. On SPARC Linux, stack goes from the top of memory
// downward, less the hole for the kernel address space.
stack_base = (Addr)0x80000000000ULL;
// Set up region for mmaps. Tru64 seems to start just above 0 and
// grow up from there.
mmap_start = mmap_end = 0xfffff80000000000ULL;
}
void initState();
public:
void argsInit(int intSize, int pageSize);
void flushWindows(ThreadContext *tc);
SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
};
#endif // __SPARC_PROCESS_HH__
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