process.hh revision 7741
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#include "sim/byteswap.hh" 38#include "sim/process.hh" 39 40class ObjectFile; 41class System; 42 43class SparcLiveProcess : public LiveProcess 44{ 45 protected: 46 47 const Addr StackBias; 48 49 // The locations of the fill and spill handlers 50 Addr fillStart, spillStart; 51 52 SparcLiveProcess(LiveProcessParams * params, 53 ObjectFile *objFile, Addr _StackBias); 54 55 void initState(); 56 57 template<class IntType> 58 void argsInit(int pageSize); 59 60 public: 61 62 // Handles traps which request services from the operating system 63 virtual void handleTrap(int trapNum, ThreadContext *tc); 64 65 Addr readFillStart() { return fillStart; } 66 Addr readSpillStart() { return spillStart; } 67 68 virtual void flushWindows(ThreadContext *tc) = 0; 69 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 70}; 71 72class Sparc32LiveProcess : public SparcLiveProcess 73{ 74 protected: 75 76 Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) : 77 SparcLiveProcess(params, objFile, 0) 78 { 79 // Set up stack. On SPARC Linux, stack goes from the top of memory 80 // downward, less the hole for the kernel address space. 81 stack_base = (Addr)0xf0000000ULL; 82 83 // Set up region for mmaps. 84 mmap_start = mmap_end = 0x70000000; 85 } 86 87 void initState(); 88 89 public: 90 91 void argsInit(int intSize, int pageSize); 92 93 void flushWindows(ThreadContext *tc); 94 95 SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 96 void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); 97}; 98 99class Sparc64LiveProcess : public SparcLiveProcess 100{ 101 protected: 102 103 Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) : 104 SparcLiveProcess(params, objFile, 2047) 105 { 106 // Set up stack. On SPARC Linux, stack goes from the top of memory 107 // downward, less the hole for the kernel address space. 108 stack_base = (Addr)0x80000000000ULL; 109 110 // Set up region for mmaps. Tru64 seems to start just above 0 and 111 // grow up from there. 112 mmap_start = mmap_end = 0xfffff80000000000ULL; 113 } 114 115 void initState(); 116 117 public: 118 119 void argsInit(int intSize, int pageSize); 120 121 void flushWindows(ThreadContext *tc); 122 123 SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 124 void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val); 125}; 126 127#endif // __SPARC_PROCESS_HH__ 128