1/* 2 * Copyright (c) 2003-2005 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: Nathan Binkert 29 */ 30 31#ifndef __SIM_ARGUMENTS_HH__ 32#define __SIM_ARGUMENTS_HH__ 33 34#include <cassert> 35 36#include "arch/vtophys.hh" 37#include "base/refcnt.hh" 38#include "base/types.hh" 39#include "mem/fs_translating_port_proxy.hh" 40 41class ThreadContext; 42 43class Arguments 44{ 45 protected: 46 ThreadContext *tc; 47 int number; 48 uint64_t getArg(uint16_t size = (uint16_t)(-1), bool fp = false); 49 50 protected: 51 class Data : public RefCounted 52 { 53 public: 54 Data(){} 55 ~Data(); 56 57 private: 58 std::list<char *> data; 59 60 public: 61 char *alloc(size_t size); 62 }; 63 64 RefCountingPtr<Data> data; 65 66 public: 67 Arguments(ThreadContext *ctx, int n = 0) 68 : tc(ctx), number(n), data(NULL) 69 { assert(number >= 0); data = new Data;} 70 Arguments(const Arguments &args) 71 : tc(args.tc), number(args.number), data(args.data) {} 72 ~Arguments() {} 73 74 ThreadContext *getThreadContext() const { return tc; } 75 76 const Arguments &operator=(const Arguments &args) { 77 tc = args.tc; 78 number = args.number; 79 data = args.data; 80 return *this; 81 } 82 83 // for checking if an argument is NULL 84 bool operator!() { 85 return getArg() == 0; 86 } 87 88 Arguments &operator++() { 89 ++number; 90 assert(number >= 0); 91 return *this; 92 } 93 94 Arguments operator++(int) { 95 Arguments args = *this; 96 ++number; 97 assert(number >= 0); 98 return args; 99 } 100 101 Arguments &operator--() { 102 --number; 103 assert(number >= 0); 104 return *this; 105 } 106 107 Arguments operator--(int) { 108 Arguments args = *this; 109 --number; 110 assert(number >= 0); 111 return args; 112 } 113 114 const Arguments &operator+=(int index) { 115 number += index; 116 assert(number >= 0); 117 return *this; 118 } 119 120 const Arguments &operator-=(int index) { 121 number -= index; 122 assert(number >= 0); 123 return *this; 124 } 125 126 Arguments operator[](int index) { 127 return Arguments(tc, index); 128 } 129 130 template <class T> 131 operator T() { 132 assert(sizeof(T) <= sizeof(uint64_t)); 133 T data = static_cast<T>(getArg(sizeof(T))); 134 return data; 135 } 136 137 template <class T> 138 operator T *() { 139 T *buf = (T *)data->alloc(sizeof(T));
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