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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 <memory>
#include <string>
#include <vector>
#include "arch/sparc/isa_traits.hh"
#include "base/loader/object_file.hh"
#include "mem/page_table.hh"
#include "sim/byteswap.hh"
#include "sim/process.hh"
class SparcProcess : public Process
{
protected:
const Addr StackBias;
// The locations of the fill and spill handlers
Addr fillStart, spillStart;
SparcProcess(ProcessParams * 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, Fault *fault);
Addr readFillStart() { return fillStart; }
Addr readSpillStart() { return spillStart; }
virtual void flushWindows(ThreadContext *tc) = 0;
void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
};
class Sparc32Process : public SparcProcess
{
protected:
Sparc32Process(ProcessParams * params, ObjectFile *objFile)
: SparcProcess(params, objFile, 0)
{
Addr brk_point = image.maxAddr();
brk_point = roundUp(brk_point, SparcISA::PageBytes);
// Reserve 8M for main stack.
Addr max_stack_size = 8 * 1024 * 1024;
// Set up stack. On SPARC Linux, stack goes from the top of memory
// downward, less the hole for the kernel address space.
Addr stack_base = 0xf0000000ULL;
// Set pointer for next thread stack.
Addr next_thread_stack_base = stack_base - max_stack_size;
// Set up region for mmaps.
Addr mmap_end = 0x70000000;
memState = std::make_shared<MemState>(brk_point, stack_base,
max_stack_size,
next_thread_stack_base,
mmap_end);
}
void initState();
public:
void argsInit(int intSize, int pageSize);
void flushWindows(ThreadContext *tc);
RegVal getSyscallArg(ThreadContext *tc, int &i);
/// Explicitly import the otherwise hidden getSyscallArg
using Process::getSyscallArg;
};
class Sparc64Process : public SparcProcess
{
protected:
Sparc64Process(ProcessParams * params, ObjectFile *objFile)
: SparcProcess(params, objFile, 2047)
{
Addr brk_point = image.maxAddr();
brk_point = roundUp(brk_point, SparcISA::PageBytes);
Addr max_stack_size = 8 * 1024 * 1024;
// Set up stack. On SPARC Linux, stack goes from the top of memory
// downward, less the hole for the kernel address space.
Addr stack_base = 0x80000000000ULL;
// Set pointer for next thread stack. Reserve 8M for main stack.
Addr next_thread_stack_base = stack_base - max_stack_size;
// Set up region for mmaps.
Addr mmap_end = 0xfffff80000000000ULL;
memState = std::make_shared<MemState>(brk_point, stack_base,
max_stack_size,
next_thread_stack_base,
mmap_end);
}
void initState();
public:
void argsInit(int intSize, int pageSize);
void flushWindows(ThreadContext *tc);
RegVal getSyscallArg(ThreadContext *tc, int &i);
/// Explicitly import the otherwise hidden getSyscallArg
using Process::getSyscallArg;
};
#endif // __SPARC_PROCESS_HH__