symtab.cc revision 1984
1/* 2 * Copyright (c) 2002-2005 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 29#include <iostream> 30#include <fstream> 31#include <string> 32#include <vector> 33 34#include "base/loader/symtab.hh" 35#include "base/misc.hh" 36#include "base/str.hh" 37#include "sim/host.hh" 38#include "sim/serialize.hh" 39 40using namespace std; 41 42SymbolTable *debugSymbolTable = NULL; 43 44void 45SymbolTable::clear() 46{ 47 addrTable.clear(); 48 symbolTable.clear(); 49} 50 51bool 52SymbolTable::insert(Addr address, string symbol) 53{ 54 if (symbol.empty()) 55 return false; 56 57 if (!addrTable.insert(make_pair(address, symbol)).second) 58 return false; 59 60 if (!symbolTable.insert(make_pair(symbol, address)).second) 61 return false; 62 63 return true; 64} 65 66 67bool 68SymbolTable::load(const string &filename) 69{ 70 string buffer; 71 ifstream file(filename.c_str()); 72 73 if (!file) 74 fatal("file error: Can't open symbol table file %s\n", filename); 75 76 while (!file.eof()) { 77 getline(file, buffer); 78 if (buffer.empty()) 79 continue; 80 81 int idx = buffer.find(','); 82 if (idx == string::npos) 83 return false; 84 85 string address = buffer.substr(0, idx); 86 eat_white(address); 87 if (address.empty()) 88 return false; 89 90 string symbol = buffer.substr(idx + 1); 91 eat_white(symbol); 92 if (symbol.empty()) 93 return false; 94 95 Addr addr; 96 if (!to_number(address, addr)) 97 return false; 98 99 if (!insert(addr, symbol)) 100 return false; 101 } 102 103 file.close(); 104 105 return true; 106} 107 108void 109SymbolTable::serialize(const string &base, ostream &os) 110{ 111 paramOut(os, base + ".size", addrTable.size()); 112 113 int i = 0; 114 ATable::const_iterator p, end = addrTable.end(); 115 for (p = addrTable.begin(); p != end; ++p) { 116 paramOut(os, csprintf("%s.addr_%d", base, i), p->first); 117 paramOut(os, csprintf("%s.symbol_%d", base, i), p->second); 118 ++i; 119 } 120} 121 122void 123SymbolTable::unserialize(const string &base, Checkpoint *cp, 124 const string §ion) 125{ 126 clear(); 127 int size; 128 paramIn(cp, section, base + ".size", size); 129 for (int i = 0; i < size; ++i) { 130 Addr addr; 131 std::string symbol; 132 133 paramIn(cp, section, csprintf("%s.addr_%d", base, i), addr); 134 paramIn(cp, section, csprintf("%s.symbol_%d", base, i), symbol); 135 insert(addr, symbol); 136 } 137} 138