process.hh revision 11886:43b882cada33
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: Gabe Black 29 * Ali Saidi 30 */ 31 32#ifndef __SPARC_PROCESS_HH__ 33#define __SPARC_PROCESS_HH__ 34 35#include <string> 36#include <vector> 37 38#include "mem/page_table.hh" 39#include "sim/byteswap.hh" 40#include "sim/process.hh" 41 42class ObjectFile; 43 44class SparcProcess : public Process 45{ 46 protected: 47 48 const Addr StackBias; 49 50 // The locations of the fill and spill handlers 51 Addr fillStart, spillStart; 52 53 SparcProcess(ProcessParams * params, ObjectFile *objFile, 54 Addr _StackBias); 55 56 void initState(); 57 58 template<class IntType> 59 void argsInit(int pageSize); 60 61 public: 62 63 // Handles traps which request services from the operating system 64 virtual void handleTrap(int trapNum, ThreadContext *tc, Fault *fault); 65 66 Addr readFillStart() { return fillStart; } 67 Addr readSpillStart() { return spillStart; } 68 69 virtual void flushWindows(ThreadContext *tc) = 0; 70 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 71}; 72 73class Sparc32Process : public SparcProcess 74{ 75 protected: 76 77 Sparc32Process(ProcessParams * params, ObjectFile *objFile) 78 : SparcProcess(params, objFile, 0) 79 { 80 // Set up stack. On SPARC Linux, stack goes from the top of memory 81 // downward, less the hole for the kernel address space. 82 memState->stackBase = (Addr)0xf0000000ULL; 83 84 // Set up region for mmaps. 85 memState->mmapEnd = 0x70000000; 86 } 87 88 void initState(); 89 90 public: 91 92 void argsInit(int intSize, int pageSize); 93 94 void flushWindows(ThreadContext *tc); 95 96 SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 97 /// Explicitly import the otherwise hidden getSyscallArg 98 using Process::getSyscallArg; 99 100 void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); 101}; 102 103class Sparc64Process : public SparcProcess 104{ 105 protected: 106 107 Sparc64Process(ProcessParams * params, ObjectFile *objFile) 108 : SparcProcess(params, objFile, 2047) 109 { 110 // Set up stack. On SPARC Linux, stack goes from the top of memory 111 // downward, less the hole for the kernel address space. 112 memState->stackBase = (Addr)0x80000000000ULL; 113 114 // Set up region for mmaps. 115 memState->mmapEnd = 0xfffff80000000000ULL; 116 } 117 118 void initState(); 119 120 public: 121 122 void argsInit(int intSize, int pageSize); 123 124 void flushWindows(ThreadContext *tc); 125 126 SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 127 /// Explicitly import the otherwise hidden getSyscallArg 128 using Process::getSyscallArg; 129 130 void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); 131}; 132 133/* No architectural page table defined for this ISA */ 134typedef NoArchPageTable ArchPageTable; 135 136#endif // __SPARC_PROCESS_HH__ 137