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1 //===- COFFObjectFile.cpp - COFF object file implementation -----*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 // This file declares the COFFObjectFile class.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "llvm/Object/COFF.h"
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15 #include "llvm/ADT/ArrayRef.h"
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16 #include "llvm/ADT/SmallString.h"
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17 #include "llvm/ADT/StringSwitch.h"
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18 #include "llvm/ADT/Triple.h"
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95
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19 #include "llvm/ADT/iterator_range.h"
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77
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20 #include "llvm/Support/COFF.h"
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21 #include "llvm/Support/Debug.h"
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22 #include "llvm/Support/raw_ostream.h"
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23 #include <cctype>
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77
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24 #include <limits>
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25
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26 using namespace llvm;
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27 using namespace object;
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28
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29 using support::ulittle16_t;
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30 using support::ulittle32_t;
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83
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31 using support::ulittle64_t;
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32 using support::little16_t;
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33
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34 // Returns false if size is greater than the buffer size. And sets ec.
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77
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35 static bool checkSize(MemoryBufferRef M, std::error_code &EC, uint64_t Size) {
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36 if (M.getBufferSize() < Size) {
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37 EC = object_error::unexpected_eof;
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38 return false;
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39 }
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40 return true;
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41 }
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42
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83
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43 static std::error_code checkOffset(MemoryBufferRef M, uintptr_t Addr,
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44 const uint64_t Size) {
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45 if (Addr + Size < Addr || Addr + Size < Size ||
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46 Addr + Size > uintptr_t(M.getBufferEnd()) ||
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47 Addr < uintptr_t(M.getBufferStart())) {
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48 return object_error::unexpected_eof;
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49 }
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95
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50 return std::error_code();
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83
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51 }
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52
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53 // Sets Obj unless any bytes in [addr, addr + size) fall outsize of m.
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54 // Returns unexpected_eof if error.
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77
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55 template <typename T>
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56 static std::error_code getObject(const T *&Obj, MemoryBufferRef M,
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83
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57 const void *Ptr,
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58 const uint64_t Size = sizeof(T)) {
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59 uintptr_t Addr = uintptr_t(Ptr);
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83
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60 if (std::error_code EC = checkOffset(M, Addr, Size))
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61 return EC;
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62 Obj = reinterpret_cast<const T *>(Addr);
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95
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63 return std::error_code();
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64 }
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77
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65
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66 // Decode a string table entry in base 64 (//AAAAAA). Expects \arg Str without
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67 // prefixed slashes.
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68 static bool decodeBase64StringEntry(StringRef Str, uint32_t &Result) {
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69 assert(Str.size() <= 6 && "String too long, possible overflow.");
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70 if (Str.size() > 6)
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71 return true;
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72
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73 uint64_t Value = 0;
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74 while (!Str.empty()) {
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75 unsigned CharVal;
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76 if (Str[0] >= 'A' && Str[0] <= 'Z') // 0..25
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77 CharVal = Str[0] - 'A';
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78 else if (Str[0] >= 'a' && Str[0] <= 'z') // 26..51
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79 CharVal = Str[0] - 'a' + 26;
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80 else if (Str[0] >= '0' && Str[0] <= '9') // 52..61
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81 CharVal = Str[0] - '0' + 52;
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82 else if (Str[0] == '+') // 62
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83 CharVal = 62;
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84 else if (Str[0] == '/') // 63
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85 CharVal = 63;
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86 else
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87 return true;
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88
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89 Value = (Value * 64) + CharVal;
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90 Str = Str.substr(1);
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91 }
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92
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93 if (Value > std::numeric_limits<uint32_t>::max())
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94 return true;
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95
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96 Result = static_cast<uint32_t>(Value);
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97 return false;
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98 }
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99
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83
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100 template <typename coff_symbol_type>
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101 const coff_symbol_type *COFFObjectFile::toSymb(DataRefImpl Ref) const {
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102 const coff_symbol_type *Addr =
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103 reinterpret_cast<const coff_symbol_type *>(Ref.p);
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104
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83
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105 assert(!checkOffset(Data, uintptr_t(Addr), sizeof(*Addr)));
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106 #ifndef NDEBUG
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107 // Verify that the symbol points to a valid entry in the symbol table.
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77
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108 uintptr_t Offset = uintptr_t(Addr) - uintptr_t(base());
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109
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110 assert((Offset - getPointerToSymbolTable()) % sizeof(coff_symbol_type) == 0 &&
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111 "Symbol did not point to the beginning of a symbol");
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112 #endif
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113
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114 return Addr;
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115 }
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116
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117 const coff_section *COFFObjectFile::toSec(DataRefImpl Ref) const {
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118 const coff_section *Addr = reinterpret_cast<const coff_section*>(Ref.p);
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119
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120 # ifndef NDEBUG
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121 // Verify that the section points to a valid entry in the section table.
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122 if (Addr < SectionTable || Addr >= (SectionTable + getNumberOfSections()))
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123 report_fatal_error("Section was outside of section table.");
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124
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125 uintptr_t Offset = uintptr_t(Addr) - uintptr_t(SectionTable);
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126 assert(Offset % sizeof(coff_section) == 0 &&
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127 "Section did not point to the beginning of a section");
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128 # endif
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129
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130 return Addr;
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131 }
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132
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133 void COFFObjectFile::moveSymbolNext(DataRefImpl &Ref) const {
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83
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134 auto End = reinterpret_cast<uintptr_t>(StringTable);
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135 if (SymbolTable16) {
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136 const coff_symbol16 *Symb = toSymb<coff_symbol16>(Ref);
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137 Symb += 1 + Symb->NumberOfAuxSymbols;
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138 Ref.p = std::min(reinterpret_cast<uintptr_t>(Symb), End);
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139 } else if (SymbolTable32) {
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140 const coff_symbol32 *Symb = toSymb<coff_symbol32>(Ref);
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141 Symb += 1 + Symb->NumberOfAuxSymbols;
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142 Ref.p = std::min(reinterpret_cast<uintptr_t>(Symb), End);
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143 } else {
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144 llvm_unreachable("no symbol table pointer!");
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145 }
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146 }
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147
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95
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148 ErrorOr<StringRef> COFFObjectFile::getSymbolName(DataRefImpl Ref) const {
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83
|
149 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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95
|
150 StringRef Result;
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151 std::error_code EC = getSymbolName(Symb, Result);
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152 if (EC)
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153 return EC;
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154 return Result;
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155 }
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156
|
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157 uint64_t COFFObjectFile::getSymbolValueImpl(DataRefImpl Ref) const {
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158 return getCOFFSymbol(Ref).getValue();
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77
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159 }
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160
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95
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161 ErrorOr<uint64_t> COFFObjectFile::getSymbolAddress(DataRefImpl Ref) const {
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162 uint64_t Result = getSymbolValue(Ref);
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83
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163 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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95
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164 int32_t SectionNumber = Symb.getSectionNumber();
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165
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166 if (Symb.isAnyUndefined() || Symb.isCommon() ||
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167 COFF::isReservedSectionNumber(SectionNumber))
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168 return Result;
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77
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169
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95
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170 const coff_section *Section = nullptr;
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171 if (std::error_code EC = getSection(SectionNumber, Section))
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172 return EC;
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173 Result += Section->VirtualAddress;
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83
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174
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95
|
175 // The section VirtualAddress does not include ImageBase, and we want to
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176 // return virtual addresses.
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177 Result += getImageBase();
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83
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178
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95
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179 return Result;
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180 }
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181
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95
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182 SymbolRef::Type COFFObjectFile::getSymbolType(DataRefImpl Ref) const {
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83
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183 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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184 int32_t SectionNumber = Symb.getSectionNumber();
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185
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95
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186 if (Symb.getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION)
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187 return SymbolRef::ST_Function;
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188 if (Symb.isAnyUndefined())
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189 return SymbolRef::ST_Unknown;
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|
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190 if (Symb.isCommon())
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191 return SymbolRef::ST_Data;
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192 if (Symb.isFileRecord())
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193 return SymbolRef::ST_File;
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194
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195 // TODO: perhaps we need a new symbol type ST_Section.
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196 if (SectionNumber == COFF::IMAGE_SYM_DEBUG || Symb.isSectionDefinition())
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197 return SymbolRef::ST_Debug;
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198
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|
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199 if (!COFF::isReservedSectionNumber(SectionNumber))
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200 return SymbolRef::ST_Data;
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201
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202 return SymbolRef::ST_Other;
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203 }
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204
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77
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205 uint32_t COFFObjectFile::getSymbolFlags(DataRefImpl Ref) const {
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83
|
206 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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77
|
207 uint32_t Result = SymbolRef::SF_None;
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208
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83
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209 if (Symb.isExternal() || Symb.isWeakExternal())
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210 Result |= SymbolRef::SF_Global;
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211
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83
|
212 if (Symb.isWeakExternal())
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213 Result |= SymbolRef::SF_Weak;
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214
|
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83
|
215 if (Symb.getSectionNumber() == COFF::IMAGE_SYM_ABSOLUTE)
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216 Result |= SymbolRef::SF_Absolute;
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217
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83
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218 if (Symb.isFileRecord())
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219 Result |= SymbolRef::SF_FormatSpecific;
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220
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221 if (Symb.isSectionDefinition())
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222 Result |= SymbolRef::SF_FormatSpecific;
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223
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224 if (Symb.isCommon())
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225 Result |= SymbolRef::SF_Common;
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226
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227 if (Symb.isAnyUndefined())
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228 Result |= SymbolRef::SF_Undefined;
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229
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77
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230 return Result;
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231 }
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232
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95
|
233 uint64_t COFFObjectFile::getCommonSymbolSizeImpl(DataRefImpl Ref) const {
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83
|
234 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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95
|
235 return Symb.getValue();
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236 }
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237
|
|
95
|
238 ErrorOr<section_iterator>
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|
|
239 COFFObjectFile::getSymbolSection(DataRefImpl Ref) const {
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|
83
|
240 COFFSymbolRef Symb = getCOFFSymbol(Ref);
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|
95
|
241 if (COFF::isReservedSectionNumber(Symb.getSectionNumber()))
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|
|
242 return section_end();
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|
|
243 const coff_section *Sec = nullptr;
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|
|
244 if (std::error_code EC = getSection(Symb.getSectionNumber(), Sec))
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|
|
245 return EC;
|
|
|
246 DataRefImpl Ret;
|
|
|
247 Ret.p = reinterpret_cast<uintptr_t>(Sec);
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|
|
248 return section_iterator(SectionRef(Ret, this));
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|
|
249 }
|
|
|
250
|
|
|
251 unsigned COFFObjectFile::getSymbolSectionID(SymbolRef Sym) const {
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|
|
252 COFFSymbolRef Symb = getCOFFSymbol(Sym.getRawDataRefImpl());
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|
|
253 return Symb.getSectionNumber();
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254 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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|
255
|
|
77
|
256 void COFFObjectFile::moveSectionNext(DataRefImpl &Ref) const {
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|
|
257 const coff_section *Sec = toSec(Ref);
|
|
|
258 Sec += 1;
|
|
|
259 Ref.p = reinterpret_cast<uintptr_t>(Sec);
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260 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
261
|
|
77
|
262 std::error_code COFFObjectFile::getSectionName(DataRefImpl Ref,
|
|
|
263 StringRef &Result) const {
|
|
|
264 const coff_section *Sec = toSec(Ref);
|
|
|
265 return getSectionName(Sec, Result);
|
|
|
266 }
|
|
|
267
|
|
83
|
268 uint64_t COFFObjectFile::getSectionAddress(DataRefImpl Ref) const {
|
|
77
|
269 const coff_section *Sec = toSec(Ref);
|
|
95
|
270 uint64_t Result = Sec->VirtualAddress;
|
|
|
271
|
|
|
272 // The section VirtualAddress does not include ImageBase, and we want to
|
|
|
273 // return virtual addresses.
|
|
|
274 Result += getImageBase();
|
|
|
275 return Result;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
276 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
277
|
|
83
|
278 uint64_t COFFObjectFile::getSectionSize(DataRefImpl Ref) const {
|
|
|
279 return getSectionSize(toSec(Ref));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
280 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
281
|
|
77
|
282 std::error_code COFFObjectFile::getSectionContents(DataRefImpl Ref,
|
|
|
283 StringRef &Result) const {
|
|
|
284 const coff_section *Sec = toSec(Ref);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
285 ArrayRef<uint8_t> Res;
|
|
77
|
286 std::error_code EC = getSectionContents(Sec, Res);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
287 Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
288 return EC;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
289 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
290
|
|
83
|
291 uint64_t COFFObjectFile::getSectionAlignment(DataRefImpl Ref) const {
|
|
77
|
292 const coff_section *Sec = toSec(Ref);
|
|
83
|
293 return uint64_t(1) << (((Sec->Characteristics & 0x00F00000) >> 20) - 1);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
294 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
295
|
|
83
|
296 bool COFFObjectFile::isSectionText(DataRefImpl Ref) const {
|
|
77
|
297 const coff_section *Sec = toSec(Ref);
|
|
83
|
298 return Sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
299 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
300
|
|
83
|
301 bool COFFObjectFile::isSectionData(DataRefImpl Ref) const {
|
|
77
|
302 const coff_section *Sec = toSec(Ref);
|
|
83
|
303 return Sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
304 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
305
|
|
83
|
306 bool COFFObjectFile::isSectionBSS(DataRefImpl Ref) const {
|
|
|
307 const coff_section *Sec = toSec(Ref);
|
|
95
|
308 const uint32_t BssFlags = COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
|
|
|
309 COFF::IMAGE_SCN_MEM_READ |
|
|
|
310 COFF::IMAGE_SCN_MEM_WRITE;
|
|
|
311 return (Sec->Characteristics & BssFlags) == BssFlags;
|
|
|
312 }
|
|
|
313
|
|
|
314 unsigned COFFObjectFile::getSectionID(SectionRef Sec) const {
|
|
|
315 uintptr_t Offset =
|
|
|
316 uintptr_t(Sec.getRawDataRefImpl().p) - uintptr_t(SectionTable);
|
|
|
317 assert((Offset % sizeof(coff_section)) == 0);
|
|
|
318 return (Offset / sizeof(coff_section)) + 1;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
319 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
320
|
|
83
|
321 bool COFFObjectFile::isSectionVirtual(DataRefImpl Ref) const {
|
|
|
322 const coff_section *Sec = toSec(Ref);
|
|
95
|
323 // In COFF, a virtual section won't have any in-file
|
|
|
324 // content, so the file pointer to the content will be zero.
|
|
|
325 return Sec->PointerToRawData == 0;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
326 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
327
|
|
77
|
328 static uint32_t getNumberOfRelocations(const coff_section *Sec,
|
|
83
|
329 MemoryBufferRef M, const uint8_t *base) {
|
|
77
|
330 // The field for the number of relocations in COFF section table is only
|
|
|
331 // 16-bit wide. If a section has more than 65535 relocations, 0xFFFF is set to
|
|
|
332 // NumberOfRelocations field, and the actual relocation count is stored in the
|
|
|
333 // VirtualAddress field in the first relocation entry.
|
|
|
334 if (Sec->hasExtendedRelocations()) {
|
|
83
|
335 const coff_relocation *FirstReloc;
|
|
|
336 if (getObject(FirstReloc, M, reinterpret_cast<const coff_relocation*>(
|
|
|
337 base + Sec->PointerToRelocations)))
|
|
|
338 return 0;
|
|
|
339 // -1 to exclude this first relocation entry.
|
|
|
340 return FirstReloc->VirtualAddress - 1;
|
|
77
|
341 }
|
|
|
342 return Sec->NumberOfRelocations;
|
|
|
343 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
344
|
|
83
|
345 static const coff_relocation *
|
|
|
346 getFirstReloc(const coff_section *Sec, MemoryBufferRef M, const uint8_t *Base) {
|
|
|
347 uint64_t NumRelocs = getNumberOfRelocations(Sec, M, Base);
|
|
|
348 if (!NumRelocs)
|
|
|
349 return nullptr;
|
|
|
350 auto begin = reinterpret_cast<const coff_relocation *>(
|
|
|
351 Base + Sec->PointerToRelocations);
|
|
|
352 if (Sec->hasExtendedRelocations()) {
|
|
|
353 // Skip the first relocation entry repurposed to store the number of
|
|
|
354 // relocations.
|
|
|
355 begin++;
|
|
|
356 }
|
|
|
357 if (checkOffset(M, uintptr_t(begin), sizeof(coff_relocation) * NumRelocs))
|
|
|
358 return nullptr;
|
|
|
359 return begin;
|
|
|
360 }
|
|
|
361
|
|
|
362 relocation_iterator COFFObjectFile::section_rel_begin(DataRefImpl Ref) const {
|
|
|
363 const coff_section *Sec = toSec(Ref);
|
|
|
364 const coff_relocation *begin = getFirstReloc(Sec, Data, base());
|
|
95
|
365 if (begin && Sec->VirtualAddress != 0)
|
|
|
366 report_fatal_error("Sections with relocations should have an address of 0");
|
|
83
|
367 DataRefImpl Ret;
|
|
|
368 Ret.p = reinterpret_cast<uintptr_t>(begin);
|
|
|
369 return relocation_iterator(RelocationRef(Ret, this));
|
|
|
370 }
|
|
|
371
|
|
77
|
372 relocation_iterator COFFObjectFile::section_rel_end(DataRefImpl Ref) const {
|
|
|
373 const coff_section *Sec = toSec(Ref);
|
|
83
|
374 const coff_relocation *I = getFirstReloc(Sec, Data, base());
|
|
|
375 if (I)
|
|
|
376 I += getNumberOfRelocations(Sec, Data, base());
|
|
77
|
377 DataRefImpl Ret;
|
|
83
|
378 Ret.p = reinterpret_cast<uintptr_t>(I);
|
|
77
|
379 return relocation_iterator(RelocationRef(Ret, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
380 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
381
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
382 // Initialize the pointer to the symbol table.
|
|
77
|
383 std::error_code COFFObjectFile::initSymbolTablePtr() {
|
|
83
|
384 if (COFFHeader)
|
|
|
385 if (std::error_code EC = getObject(
|
|
|
386 SymbolTable16, Data, base() + getPointerToSymbolTable(),
|
|
|
387 (uint64_t)getNumberOfSymbols() * getSymbolTableEntrySize()))
|
|
|
388 return EC;
|
|
|
389
|
|
|
390 if (COFFBigObjHeader)
|
|
|
391 if (std::error_code EC = getObject(
|
|
|
392 SymbolTable32, Data, base() + getPointerToSymbolTable(),
|
|
|
393 (uint64_t)getNumberOfSymbols() * getSymbolTableEntrySize()))
|
|
|
394 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
395
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
396 // Find string table. The first four byte of the string table contains the
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
397 // total size of the string table, including the size field itself. If the
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
398 // string table is empty, the value of the first four byte would be 4.
|
|
83
|
399 uint32_t StringTableOffset = getPointerToSymbolTable() +
|
|
|
400 getNumberOfSymbols() * getSymbolTableEntrySize();
|
|
|
401 const uint8_t *StringTableAddr = base() + StringTableOffset;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
402 const ulittle32_t *StringTableSizePtr;
|
|
77
|
403 if (std::error_code EC = getObject(StringTableSizePtr, Data, StringTableAddr))
|
|
|
404 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
405 StringTableSize = *StringTableSizePtr;
|
|
77
|
406 if (std::error_code EC =
|
|
|
407 getObject(StringTable, Data, StringTableAddr, StringTableSize))
|
|
|
408 return EC;
|
|
|
409
|
|
|
410 // Treat table sizes < 4 as empty because contrary to the PECOFF spec, some
|
|
|
411 // tools like cvtres write a size of 0 for an empty table instead of 4.
|
|
|
412 if (StringTableSize < 4)
|
|
|
413 StringTableSize = 4;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
414
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
415 // Check that the string table is null terminated if has any in it.
|
|
77
|
416 if (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
417 return object_error::parse_failed;
|
|
95
|
418 return std::error_code();
|
|
|
419 }
|
|
|
420
|
|
|
421 uint64_t COFFObjectFile::getImageBase() const {
|
|
|
422 if (PE32Header)
|
|
|
423 return PE32Header->ImageBase;
|
|
|
424 else if (PE32PlusHeader)
|
|
|
425 return PE32PlusHeader->ImageBase;
|
|
|
426 // This actually comes up in practice.
|
|
|
427 return 0;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
428 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
429
|
|
77
|
430 // Returns the file offset for the given VA.
|
|
|
431 std::error_code COFFObjectFile::getVaPtr(uint64_t Addr, uintptr_t &Res) const {
|
|
95
|
432 uint64_t ImageBase = getImageBase();
|
|
77
|
433 uint64_t Rva = Addr - ImageBase;
|
|
|
434 assert(Rva <= UINT32_MAX);
|
|
|
435 return getRvaPtr((uint32_t)Rva, Res);
|
|
|
436 }
|
|
|
437
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
438 // Returns the file offset for the given RVA.
|
|
77
|
439 std::error_code COFFObjectFile::getRvaPtr(uint32_t Addr, uintptr_t &Res) const {
|
|
|
440 for (const SectionRef &S : sections()) {
|
|
|
441 const coff_section *Section = getCOFFSection(S);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
442 uint32_t SectionStart = Section->VirtualAddress;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
443 uint32_t SectionEnd = Section->VirtualAddress + Section->VirtualSize;
|
|
77
|
444 if (SectionStart <= Addr && Addr < SectionEnd) {
|
|
|
445 uint32_t Offset = Addr - SectionStart;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
446 Res = uintptr_t(base()) + Section->PointerToRawData + Offset;
|
|
95
|
447 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
448 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
449 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
450 return object_error::parse_failed;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
451 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
452
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
453 // Returns hint and name fields, assuming \p Rva is pointing to a Hint/Name
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
454 // table entry.
|
|
77
|
455 std::error_code COFFObjectFile::getHintName(uint32_t Rva, uint16_t &Hint,
|
|
|
456 StringRef &Name) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
457 uintptr_t IntPtr = 0;
|
|
77
|
458 if (std::error_code EC = getRvaPtr(Rva, IntPtr))
|
|
|
459 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
460 const uint8_t *Ptr = reinterpret_cast<const uint8_t *>(IntPtr);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
461 Hint = *reinterpret_cast<const ulittle16_t *>(Ptr);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
462 Name = StringRef(reinterpret_cast<const char *>(Ptr + 2));
|
|
95
|
463 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
464 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
465
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
466 // Find the import table.
|
|
77
|
467 std::error_code COFFObjectFile::initImportTablePtr() {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
468 // First, we get the RVA of the import table. If the file lacks a pointer to
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
469 // the import table, do nothing.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
470 const data_directory *DataEntry;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
471 if (getDataDirectory(COFF::IMPORT_TABLE, DataEntry))
|
|
95
|
472 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
473
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
474 // Do nothing if the pointer to import table is NULL.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
475 if (DataEntry->RelativeVirtualAddress == 0)
|
|
95
|
476 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
477
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
478 uint32_t ImportTableRva = DataEntry->RelativeVirtualAddress;
|
|
83
|
479 // -1 because the last entry is the null entry.
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
480 NumberOfImportDirectory = DataEntry->Size /
|
|
83
|
481 sizeof(import_directory_table_entry) - 1;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
482
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
483 // Find the section that contains the RVA. This is needed because the RVA is
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
484 // the import table's memory address which is different from its file offset.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
485 uintptr_t IntPtr = 0;
|
|
77
|
486 if (std::error_code EC = getRvaPtr(ImportTableRva, IntPtr))
|
|
|
487 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
488 ImportDirectory = reinterpret_cast<
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
489 const import_directory_table_entry *>(IntPtr);
|
|
95
|
490 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
491 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
492
|
|
83
|
493 // Initializes DelayImportDirectory and NumberOfDelayImportDirectory.
|
|
|
494 std::error_code COFFObjectFile::initDelayImportTablePtr() {
|
|
|
495 const data_directory *DataEntry;
|
|
|
496 if (getDataDirectory(COFF::DELAY_IMPORT_DESCRIPTOR, DataEntry))
|
|
95
|
497 return std::error_code();
|
|
83
|
498 if (DataEntry->RelativeVirtualAddress == 0)
|
|
95
|
499 return std::error_code();
|
|
83
|
500
|
|
|
501 uint32_t RVA = DataEntry->RelativeVirtualAddress;
|
|
|
502 NumberOfDelayImportDirectory = DataEntry->Size /
|
|
|
503 sizeof(delay_import_directory_table_entry) - 1;
|
|
|
504
|
|
|
505 uintptr_t IntPtr = 0;
|
|
|
506 if (std::error_code EC = getRvaPtr(RVA, IntPtr))
|
|
|
507 return EC;
|
|
|
508 DelayImportDirectory = reinterpret_cast<
|
|
|
509 const delay_import_directory_table_entry *>(IntPtr);
|
|
95
|
510 return std::error_code();
|
|
83
|
511 }
|
|
|
512
|
|
77
|
513 // Find the export table.
|
|
|
514 std::error_code COFFObjectFile::initExportTablePtr() {
|
|
|
515 // First, we get the RVA of the export table. If the file lacks a pointer to
|
|
|
516 // the export table, do nothing.
|
|
|
517 const data_directory *DataEntry;
|
|
|
518 if (getDataDirectory(COFF::EXPORT_TABLE, DataEntry))
|
|
95
|
519 return std::error_code();
|
|
77
|
520
|
|
|
521 // Do nothing if the pointer to export table is NULL.
|
|
|
522 if (DataEntry->RelativeVirtualAddress == 0)
|
|
95
|
523 return std::error_code();
|
|
77
|
524
|
|
|
525 uint32_t ExportTableRva = DataEntry->RelativeVirtualAddress;
|
|
|
526 uintptr_t IntPtr = 0;
|
|
|
527 if (std::error_code EC = getRvaPtr(ExportTableRva, IntPtr))
|
|
|
528 return EC;
|
|
|
529 ExportDirectory =
|
|
|
530 reinterpret_cast<const export_directory_table_entry *>(IntPtr);
|
|
95
|
531 return std::error_code();
|
|
77
|
532 }
|
|
|
533
|
|
83
|
534 std::error_code COFFObjectFile::initBaseRelocPtr() {
|
|
|
535 const data_directory *DataEntry;
|
|
|
536 if (getDataDirectory(COFF::BASE_RELOCATION_TABLE, DataEntry))
|
|
95
|
537 return std::error_code();
|
|
83
|
538 if (DataEntry->RelativeVirtualAddress == 0)
|
|
95
|
539 return std::error_code();
|
|
83
|
540
|
|
|
541 uintptr_t IntPtr = 0;
|
|
|
542 if (std::error_code EC = getRvaPtr(DataEntry->RelativeVirtualAddress, IntPtr))
|
|
|
543 return EC;
|
|
|
544 BaseRelocHeader = reinterpret_cast<const coff_base_reloc_block_header *>(
|
|
|
545 IntPtr);
|
|
|
546 BaseRelocEnd = reinterpret_cast<coff_base_reloc_block_header *>(
|
|
|
547 IntPtr + DataEntry->Size);
|
|
95
|
548 return std::error_code();
|
|
83
|
549 }
|
|
|
550
|
|
77
|
551 COFFObjectFile::COFFObjectFile(MemoryBufferRef Object, std::error_code &EC)
|
|
|
552 : ObjectFile(Binary::ID_COFF, Object), COFFHeader(nullptr),
|
|
83
|
553 COFFBigObjHeader(nullptr), PE32Header(nullptr), PE32PlusHeader(nullptr),
|
|
|
554 DataDirectory(nullptr), SectionTable(nullptr), SymbolTable16(nullptr),
|
|
|
555 SymbolTable32(nullptr), StringTable(nullptr), StringTableSize(0),
|
|
|
556 ImportDirectory(nullptr), NumberOfImportDirectory(0),
|
|
|
557 DelayImportDirectory(nullptr), NumberOfDelayImportDirectory(0),
|
|
|
558 ExportDirectory(nullptr), BaseRelocHeader(nullptr),
|
|
|
559 BaseRelocEnd(nullptr) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
560 // Check that we at least have enough room for a header.
|
|
77
|
561 if (!checkSize(Data, EC, sizeof(coff_file_header)))
|
|
|
562 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
563
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
564 // The current location in the file where we are looking at.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
565 uint64_t CurPtr = 0;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
566
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
567 // PE header is optional and is present only in executables. If it exists,
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
568 // it is placed right after COFF header.
|
|
77
|
569 bool HasPEHeader = false;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
570
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
571 // Check if this is a PE/COFF file.
|
|
83
|
572 if (checkSize(Data, EC, sizeof(dos_header) + sizeof(COFF::PEMagic))) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
573 // PE/COFF, seek through MS-DOS compatibility stub and 4-byte
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
574 // PE signature to find 'normal' COFF header.
|
|
83
|
575 const auto *DH = reinterpret_cast<const dos_header *>(base());
|
|
|
576 if (DH->Magic[0] == 'M' && DH->Magic[1] == 'Z') {
|
|
|
577 CurPtr = DH->AddressOfNewExeHeader;
|
|
|
578 // Check the PE magic bytes. ("PE\0\0")
|
|
|
579 if (memcmp(base() + CurPtr, COFF::PEMagic, sizeof(COFF::PEMagic)) != 0) {
|
|
|
580 EC = object_error::parse_failed;
|
|
|
581 return;
|
|
|
582 }
|
|
|
583 CurPtr += sizeof(COFF::PEMagic); // Skip the PE magic bytes.
|
|
|
584 HasPEHeader = true;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
585 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
586 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
587
|
|
77
|
588 if ((EC = getObject(COFFHeader, Data, base() + CurPtr)))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
589 return;
|
|
83
|
590
|
|
|
591 // It might be a bigobj file, let's check. Note that COFF bigobj and COFF
|
|
|
592 // import libraries share a common prefix but bigobj is more restrictive.
|
|
|
593 if (!HasPEHeader && COFFHeader->Machine == COFF::IMAGE_FILE_MACHINE_UNKNOWN &&
|
|
|
594 COFFHeader->NumberOfSections == uint16_t(0xffff) &&
|
|
|
595 checkSize(Data, EC, sizeof(coff_bigobj_file_header))) {
|
|
|
596 if ((EC = getObject(COFFBigObjHeader, Data, base() + CurPtr)))
|
|
|
597 return;
|
|
|
598
|
|
|
599 // Verify that we are dealing with bigobj.
|
|
|
600 if (COFFBigObjHeader->Version >= COFF::BigObjHeader::MinBigObjectVersion &&
|
|
|
601 std::memcmp(COFFBigObjHeader->UUID, COFF::BigObjMagic,
|
|
|
602 sizeof(COFF::BigObjMagic)) == 0) {
|
|
|
603 COFFHeader = nullptr;
|
|
|
604 CurPtr += sizeof(coff_bigobj_file_header);
|
|
|
605 } else {
|
|
|
606 // It's not a bigobj.
|
|
|
607 COFFBigObjHeader = nullptr;
|
|
|
608 }
|
|
|
609 }
|
|
|
610 if (COFFHeader) {
|
|
|
611 // The prior checkSize call may have failed. This isn't a hard error
|
|
|
612 // because we were just trying to sniff out bigobj.
|
|
95
|
613 EC = std::error_code();
|
|
83
|
614 CurPtr += sizeof(coff_file_header);
|
|
|
615
|
|
|
616 if (COFFHeader->isImportLibrary())
|
|
|
617 return;
|
|
|
618 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
619
|
|
77
|
620 if (HasPEHeader) {
|
|
|
621 const pe32_header *Header;
|
|
|
622 if ((EC = getObject(Header, Data, base() + CurPtr)))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
623 return;
|
|
77
|
624
|
|
|
625 const uint8_t *DataDirAddr;
|
|
|
626 uint64_t DataDirSize;
|
|
83
|
627 if (Header->Magic == COFF::PE32Header::PE32) {
|
|
77
|
628 PE32Header = Header;
|
|
|
629 DataDirAddr = base() + CurPtr + sizeof(pe32_header);
|
|
|
630 DataDirSize = sizeof(data_directory) * PE32Header->NumberOfRvaAndSize;
|
|
83
|
631 } else if (Header->Magic == COFF::PE32Header::PE32_PLUS) {
|
|
77
|
632 PE32PlusHeader = reinterpret_cast<const pe32plus_header *>(Header);
|
|
|
633 DataDirAddr = base() + CurPtr + sizeof(pe32plus_header);
|
|
|
634 DataDirSize = sizeof(data_directory) * PE32PlusHeader->NumberOfRvaAndSize;
|
|
|
635 } else {
|
|
|
636 // It's neither PE32 nor PE32+.
|
|
|
637 EC = object_error::parse_failed;
|
|
|
638 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
639 }
|
|
77
|
640 if ((EC = getObject(DataDirectory, Data, DataDirAddr, DataDirSize)))
|
|
|
641 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
642 CurPtr += COFFHeader->SizeOfOptionalHeader;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
643 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
644
|
|
77
|
645 if ((EC = getObject(SectionTable, Data, base() + CurPtr,
|
|
83
|
646 (uint64_t)getNumberOfSections() * sizeof(coff_section))))
|
|
77
|
647 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
648
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
649 // Initialize the pointer to the symbol table.
|
|
83
|
650 if (getPointerToSymbolTable() != 0) {
|
|
77
|
651 if ((EC = initSymbolTablePtr()))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
652 return;
|
|
83
|
653 } else {
|
|
|
654 // We had better not have any symbols if we don't have a symbol table.
|
|
|
655 if (getNumberOfSymbols() != 0) {
|
|
|
656 EC = object_error::parse_failed;
|
|
|
657 return;
|
|
|
658 }
|
|
|
659 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
660
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
661 // Initialize the pointer to the beginning of the import table.
|
|
77
|
662 if ((EC = initImportTablePtr()))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
663 return;
|
|
83
|
664 if ((EC = initDelayImportTablePtr()))
|
|
|
665 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
666
|
|
77
|
667 // Initialize the pointer to the export table.
|
|
|
668 if ((EC = initExportTablePtr()))
|
|
|
669 return;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
670
|
|
83
|
671 // Initialize the pointer to the base relocation table.
|
|
|
672 if ((EC = initBaseRelocPtr()))
|
|
|
673 return;
|
|
|
674
|
|
95
|
675 EC = std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
676 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
677
|
|
77
|
678 basic_symbol_iterator COFFObjectFile::symbol_begin_impl() const {
|
|
|
679 DataRefImpl Ret;
|
|
83
|
680 Ret.p = getSymbolTable();
|
|
77
|
681 return basic_symbol_iterator(SymbolRef(Ret, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
682 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
683
|
|
77
|
684 basic_symbol_iterator COFFObjectFile::symbol_end_impl() const {
|
|
|
685 // The symbol table ends where the string table begins.
|
|
|
686 DataRefImpl Ret;
|
|
|
687 Ret.p = reinterpret_cast<uintptr_t>(StringTable);
|
|
|
688 return basic_symbol_iterator(SymbolRef(Ret, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
689 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
690
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
691 import_directory_iterator COFFObjectFile::import_directory_begin() const {
|
|
77
|
692 return import_directory_iterator(
|
|
|
693 ImportDirectoryEntryRef(ImportDirectory, 0, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
694 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
695
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
696 import_directory_iterator COFFObjectFile::import_directory_end() const {
|
|
77
|
697 return import_directory_iterator(
|
|
|
698 ImportDirectoryEntryRef(ImportDirectory, NumberOfImportDirectory, this));
|
|
|
699 }
|
|
|
700
|
|
83
|
701 delay_import_directory_iterator
|
|
|
702 COFFObjectFile::delay_import_directory_begin() const {
|
|
|
703 return delay_import_directory_iterator(
|
|
|
704 DelayImportDirectoryEntryRef(DelayImportDirectory, 0, this));
|
|
|
705 }
|
|
|
706
|
|
|
707 delay_import_directory_iterator
|
|
|
708 COFFObjectFile::delay_import_directory_end() const {
|
|
|
709 return delay_import_directory_iterator(
|
|
|
710 DelayImportDirectoryEntryRef(
|
|
|
711 DelayImportDirectory, NumberOfDelayImportDirectory, this));
|
|
|
712 }
|
|
|
713
|
|
77
|
714 export_directory_iterator COFFObjectFile::export_directory_begin() const {
|
|
|
715 return export_directory_iterator(
|
|
|
716 ExportDirectoryEntryRef(ExportDirectory, 0, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
717 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
718
|
|
77
|
719 export_directory_iterator COFFObjectFile::export_directory_end() const {
|
|
|
720 if (!ExportDirectory)
|
|
|
721 return export_directory_iterator(ExportDirectoryEntryRef(nullptr, 0, this));
|
|
|
722 ExportDirectoryEntryRef Ref(ExportDirectory,
|
|
|
723 ExportDirectory->AddressTableEntries, this);
|
|
|
724 return export_directory_iterator(Ref);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
725 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
726
|
|
77
|
727 section_iterator COFFObjectFile::section_begin() const {
|
|
|
728 DataRefImpl Ret;
|
|
|
729 Ret.p = reinterpret_cast<uintptr_t>(SectionTable);
|
|
|
730 return section_iterator(SectionRef(Ret, this));
|
|
|
731 }
|
|
|
732
|
|
|
733 section_iterator COFFObjectFile::section_end() const {
|
|
|
734 DataRefImpl Ret;
|
|
83
|
735 int NumSections =
|
|
|
736 COFFHeader && COFFHeader->isImportLibrary() ? 0 : getNumberOfSections();
|
|
77
|
737 Ret.p = reinterpret_cast<uintptr_t>(SectionTable + NumSections);
|
|
|
738 return section_iterator(SectionRef(Ret, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
739 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
740
|
|
83
|
741 base_reloc_iterator COFFObjectFile::base_reloc_begin() const {
|
|
|
742 return base_reloc_iterator(BaseRelocRef(BaseRelocHeader, this));
|
|
|
743 }
|
|
|
744
|
|
|
745 base_reloc_iterator COFFObjectFile::base_reloc_end() const {
|
|
|
746 return base_reloc_iterator(BaseRelocRef(BaseRelocEnd, this));
|
|
|
747 }
|
|
|
748
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
749 uint8_t COFFObjectFile::getBytesInAddress() const {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
750 return getArch() == Triple::x86_64 ? 8 : 4;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
751 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
752
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
753 StringRef COFFObjectFile::getFileFormatName() const {
|
|
83
|
754 switch(getMachine()) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
755 case COFF::IMAGE_FILE_MACHINE_I386:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
756 return "COFF-i386";
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
757 case COFF::IMAGE_FILE_MACHINE_AMD64:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
758 return "COFF-x86-64";
|
|
77
|
759 case COFF::IMAGE_FILE_MACHINE_ARMNT:
|
|
|
760 return "COFF-ARM";
|
|
95
|
761 case COFF::IMAGE_FILE_MACHINE_ARM64:
|
|
|
762 return "COFF-ARM64";
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
763 default:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
764 return "COFF-<unknown arch>";
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
765 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
766 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
767
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
768 unsigned COFFObjectFile::getArch() const {
|
|
83
|
769 switch (getMachine()) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
770 case COFF::IMAGE_FILE_MACHINE_I386:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
771 return Triple::x86;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
772 case COFF::IMAGE_FILE_MACHINE_AMD64:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
773 return Triple::x86_64;
|
|
77
|
774 case COFF::IMAGE_FILE_MACHINE_ARMNT:
|
|
|
775 return Triple::thumb;
|
|
95
|
776 case COFF::IMAGE_FILE_MACHINE_ARM64:
|
|
|
777 return Triple::aarch64;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
778 default:
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
779 return Triple::UnknownArch;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
780 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
781 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
782
|
|
83
|
783 iterator_range<import_directory_iterator>
|
|
|
784 COFFObjectFile::import_directories() const {
|
|
|
785 return make_range(import_directory_begin(), import_directory_end());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
786 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
787
|
|
83
|
788 iterator_range<delay_import_directory_iterator>
|
|
|
789 COFFObjectFile::delay_import_directories() const {
|
|
|
790 return make_range(delay_import_directory_begin(),
|
|
|
791 delay_import_directory_end());
|
|
|
792 }
|
|
|
793
|
|
|
794 iterator_range<export_directory_iterator>
|
|
|
795 COFFObjectFile::export_directories() const {
|
|
|
796 return make_range(export_directory_begin(), export_directory_end());
|
|
|
797 }
|
|
|
798
|
|
|
799 iterator_range<base_reloc_iterator> COFFObjectFile::base_relocs() const {
|
|
|
800 return make_range(base_reloc_begin(), base_reloc_end());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
801 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
802
|
|
77
|
803 std::error_code COFFObjectFile::getPE32Header(const pe32_header *&Res) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
804 Res = PE32Header;
|
|
95
|
805 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
806 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
807
|
|
77
|
808 std::error_code
|
|
|
809 COFFObjectFile::getPE32PlusHeader(const pe32plus_header *&Res) const {
|
|
|
810 Res = PE32PlusHeader;
|
|
95
|
811 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
812 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
813
|
|
77
|
814 std::error_code
|
|
|
815 COFFObjectFile::getDataDirectory(uint32_t Index,
|
|
|
816 const data_directory *&Res) const {
|
|
|
817 // Error if if there's no data directory or the index is out of range.
|
|
83
|
818 if (!DataDirectory) {
|
|
|
819 Res = nullptr;
|
|
77
|
820 return object_error::parse_failed;
|
|
83
|
821 }
|
|
77
|
822 assert(PE32Header || PE32PlusHeader);
|
|
|
823 uint32_t NumEnt = PE32Header ? PE32Header->NumberOfRvaAndSize
|
|
|
824 : PE32PlusHeader->NumberOfRvaAndSize;
|
|
83
|
825 if (Index >= NumEnt) {
|
|
|
826 Res = nullptr;
|
|
77
|
827 return object_error::parse_failed;
|
|
83
|
828 }
|
|
77
|
829 Res = &DataDirectory[Index];
|
|
95
|
830 return std::error_code();
|
|
77
|
831 }
|
|
|
832
|
|
|
833 std::error_code COFFObjectFile::getSection(int32_t Index,
|
|
|
834 const coff_section *&Result) const {
|
|
83
|
835 Result = nullptr;
|
|
77
|
836 if (COFF::isReservedSectionNumber(Index))
|
|
95
|
837 return std::error_code();
|
|
83
|
838 if (static_cast<uint32_t>(Index) <= getNumberOfSections()) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
839 // We already verified the section table data, so no need to check again.
|
|
77
|
840 Result = SectionTable + (Index - 1);
|
|
95
|
841 return std::error_code();
|
|
83
|
842 }
|
|
|
843 return object_error::parse_failed;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
844 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
845
|
|
77
|
846 std::error_code COFFObjectFile::getString(uint32_t Offset,
|
|
|
847 StringRef &Result) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
848 if (StringTableSize <= 4)
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
849 // Tried to get a string from an empty string table.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
850 return object_error::parse_failed;
|
|
77
|
851 if (Offset >= StringTableSize)
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
852 return object_error::unexpected_eof;
|
|
77
|
853 Result = StringRef(StringTable + Offset);
|
|
95
|
854 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
855 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
856
|
|
83
|
857 std::error_code COFFObjectFile::getSymbolName(COFFSymbolRef Symbol,
|
|
77
|
858 StringRef &Res) const {
|
|
95
|
859 return getSymbolName(Symbol.getGeneric(), Res);
|
|
|
860 }
|
|
|
861
|
|
|
862 std::error_code COFFObjectFile::getSymbolName(const coff_symbol_generic *Symbol,
|
|
|
863 StringRef &Res) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
864 // Check for string table entry. First 4 bytes are 0.
|
|
95
|
865 if (Symbol->Name.Offset.Zeroes == 0) {
|
|
|
866 if (std::error_code EC = getString(Symbol->Name.Offset.Offset, Res))
|
|
77
|
867 return EC;
|
|
95
|
868 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
869 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
870
|
|
95
|
871 if (Symbol->Name.ShortName[COFF::NameSize - 1] == 0)
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
872 // Null terminated, let ::strlen figure out the length.
|
|
95
|
873 Res = StringRef(Symbol->Name.ShortName);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
874 else
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
875 // Not null terminated, use all 8 bytes.
|
|
95
|
876 Res = StringRef(Symbol->Name.ShortName, COFF::NameSize);
|
|
|
877 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
878 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
879
|
|
83
|
880 ArrayRef<uint8_t>
|
|
|
881 COFFObjectFile::getSymbolAuxData(COFFSymbolRef Symbol) const {
|
|
77
|
882 const uint8_t *Aux = nullptr;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
883
|
|
83
|
884 size_t SymbolSize = getSymbolTableEntrySize();
|
|
|
885 if (Symbol.getNumberOfAuxSymbols() > 0) {
|
|
|
886 // AUX data comes immediately after the symbol in COFF
|
|
|
887 Aux = reinterpret_cast<const uint8_t *>(Symbol.getRawPtr()) + SymbolSize;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
888 # ifndef NDEBUG
|
|
77
|
889 // Verify that the Aux symbol points to a valid entry in the symbol table.
|
|
|
890 uintptr_t Offset = uintptr_t(Aux) - uintptr_t(base());
|
|
83
|
891 if (Offset < getPointerToSymbolTable() ||
|
|
|
892 Offset >=
|
|
|
893 getPointerToSymbolTable() + (getNumberOfSymbols() * SymbolSize))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
894 report_fatal_error("Aux Symbol data was outside of symbol table.");
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
895
|
|
83
|
896 assert((Offset - getPointerToSymbolTable()) % SymbolSize == 0 &&
|
|
|
897 "Aux Symbol data did not point to the beginning of a symbol");
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
898 # endif
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
899 }
|
|
83
|
900 return makeArrayRef(Aux, Symbol.getNumberOfAuxSymbols() * SymbolSize);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
901 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
902
|
|
77
|
903 std::error_code COFFObjectFile::getSectionName(const coff_section *Sec,
|
|
|
904 StringRef &Res) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
905 StringRef Name;
|
|
83
|
906 if (Sec->Name[COFF::NameSize - 1] == 0)
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
907 // Null terminated, let ::strlen figure out the length.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
908 Name = Sec->Name;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
909 else
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
910 // Not null terminated, use all 8 bytes.
|
|
83
|
911 Name = StringRef(Sec->Name, COFF::NameSize);
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
912
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
913 // Check for string table entry. First byte is '/'.
|
|
83
|
914 if (Name.startswith("/")) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
915 uint32_t Offset;
|
|
83
|
916 if (Name.startswith("//")) {
|
|
77
|
917 if (decodeBase64StringEntry(Name.substr(2), Offset))
|
|
|
918 return object_error::parse_failed;
|
|
|
919 } else {
|
|
|
920 if (Name.substr(1).getAsInteger(10, Offset))
|
|
|
921 return object_error::parse_failed;
|
|
|
922 }
|
|
|
923 if (std::error_code EC = getString(Offset, Name))
|
|
|
924 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
925 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
926
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
927 Res = Name;
|
|
95
|
928 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
929 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
930
|
|
83
|
931 uint64_t COFFObjectFile::getSectionSize(const coff_section *Sec) const {
|
|
|
932 // SizeOfRawData and VirtualSize change what they represent depending on
|
|
|
933 // whether or not we have an executable image.
|
|
|
934 //
|
|
|
935 // For object files, SizeOfRawData contains the size of section's data;
|
|
95
|
936 // VirtualSize should be zero but isn't due to buggy COFF writers.
|
|
83
|
937 //
|
|
|
938 // For executables, SizeOfRawData *must* be a multiple of FileAlignment; the
|
|
|
939 // actual section size is in VirtualSize. It is possible for VirtualSize to
|
|
|
940 // be greater than SizeOfRawData; the contents past that point should be
|
|
|
941 // considered to be zero.
|
|
95
|
942 if (getDOSHeader())
|
|
|
943 return std::min(Sec->VirtualSize, Sec->SizeOfRawData);
|
|
|
944 return Sec->SizeOfRawData;
|
|
83
|
945 }
|
|
|
946
|
|
77
|
947 std::error_code
|
|
|
948 COFFObjectFile::getSectionContents(const coff_section *Sec,
|
|
|
949 ArrayRef<uint8_t> &Res) const {
|
|
83
|
950 // PointerToRawData and SizeOfRawData won't make sense for BSS sections,
|
|
|
951 // don't do anything interesting for them.
|
|
|
952 assert((Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) == 0 &&
|
|
|
953 "BSS sections don't have contents!");
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
954 // The only thing that we need to verify is that the contents is contained
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
955 // within the file bounds. We don't need to make sure it doesn't cover other
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
956 // data, as there's nothing that says that is not allowed.
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
957 uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
|
|
83
|
958 uint32_t SectionSize = getSectionSize(Sec);
|
|
|
959 if (checkOffset(Data, ConStart, SectionSize))
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
960 return object_error::parse_failed;
|
|
83
|
961 Res = makeArrayRef(reinterpret_cast<const uint8_t *>(ConStart), SectionSize);
|
|
95
|
962 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
963 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
964
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
965 const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
966 return reinterpret_cast<const coff_relocation*>(Rel.p);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
967 }
|
|
77
|
968
|
|
|
969 void COFFObjectFile::moveRelocationNext(DataRefImpl &Rel) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
970 Rel.p = reinterpret_cast<uintptr_t>(
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
971 reinterpret_cast<const coff_relocation*>(Rel.p) + 1);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
972 }
|
|
77
|
973
|
|
95
|
974 uint64_t COFFObjectFile::getRelocationOffset(DataRefImpl Rel) const {
|
|
83
|
975 const coff_relocation *R = toRel(Rel);
|
|
95
|
976 return R->VirtualAddress;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
977 }
|
|
77
|
978
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
979 symbol_iterator COFFObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
|
|
83
|
980 const coff_relocation *R = toRel(Rel);
|
|
77
|
981 DataRefImpl Ref;
|
|
83
|
982 if (R->SymbolTableIndex >= getNumberOfSymbols())
|
|
|
983 return symbol_end();
|
|
|
984 if (SymbolTable16)
|
|
|
985 Ref.p = reinterpret_cast<uintptr_t>(SymbolTable16 + R->SymbolTableIndex);
|
|
|
986 else if (SymbolTable32)
|
|
|
987 Ref.p = reinterpret_cast<uintptr_t>(SymbolTable32 + R->SymbolTableIndex);
|
|
|
988 else
|
|
|
989 llvm_unreachable("no symbol table pointer!");
|
|
77
|
990 return symbol_iterator(SymbolRef(Ref, this));
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
991 }
|
|
77
|
992
|
|
95
|
993 uint64_t COFFObjectFile::getRelocationType(DataRefImpl Rel) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
994 const coff_relocation* R = toRel(Rel);
|
|
95
|
995 return R->Type;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
996 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
997
|
|
77
|
998 const coff_section *
|
|
|
999 COFFObjectFile::getCOFFSection(const SectionRef &Section) const {
|
|
|
1000 return toSec(Section.getRawDataRefImpl());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1001 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1002
|
|
83
|
1003 COFFSymbolRef COFFObjectFile::getCOFFSymbol(const DataRefImpl &Ref) const {
|
|
|
1004 if (SymbolTable16)
|
|
|
1005 return toSymb<coff_symbol16>(Ref);
|
|
|
1006 if (SymbolTable32)
|
|
|
1007 return toSymb<coff_symbol32>(Ref);
|
|
|
1008 llvm_unreachable("no symbol table pointer!");
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 COFFSymbolRef COFFObjectFile::getCOFFSymbol(const SymbolRef &Symbol) const {
|
|
|
1012 return getCOFFSymbol(Symbol.getRawDataRefImpl());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1013 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1014
|
|
77
|
1015 const coff_relocation *
|
|
|
1016 COFFObjectFile::getCOFFRelocation(const RelocationRef &Reloc) const {
|
|
|
1017 return toRel(Reloc.getRawDataRefImpl());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1018 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1019
|
|
95
|
1020 iterator_range<const coff_relocation *>
|
|
|
1021 COFFObjectFile::getRelocations(const coff_section *Sec) const {
|
|
|
1022 const coff_relocation *I = getFirstReloc(Sec, Data, base());
|
|
|
1023 const coff_relocation *E = I;
|
|
|
1024 if (I)
|
|
|
1025 E += getNumberOfRelocations(Sec, Data, base());
|
|
|
1026 return make_range(I, E);
|
|
|
1027 }
|
|
|
1028
|
|
77
|
1029 #define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(reloc_type) \
|
|
|
1030 case COFF::reloc_type: \
|
|
|
1031 Res = #reloc_type; \
|
|
|
1032 break;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1033
|
|
95
|
1034 void COFFObjectFile::getRelocationTypeName(
|
|
|
1035 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
|
|
77
|
1036 const coff_relocation *Reloc = toRel(Rel);
|
|
|
1037 StringRef Res;
|
|
83
|
1038 switch (getMachine()) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1039 case COFF::IMAGE_FILE_MACHINE_AMD64:
|
|
77
|
1040 switch (Reloc->Type) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1041 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1042 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR64);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1043 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1044 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32NB);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1045 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1046 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_1);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1047 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_2);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1048 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_3);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1049 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_4);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1050 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_5);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1051 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECTION);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1052 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1053 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL7);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1054 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_TOKEN);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1055 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SREL32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1056 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1057 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1058 default:
|
|
77
|
1059 Res = "Unknown";
|
|
|
1060 }
|
|
|
1061 break;
|
|
|
1062 case COFF::IMAGE_FILE_MACHINE_ARMNT:
|
|
|
1063 switch (Reloc->Type) {
|
|
|
1064 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ABSOLUTE);
|
|
|
1065 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ADDR32);
|
|
|
1066 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ADDR32NB);
|
|
|
1067 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH24);
|
|
|
1068 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH11);
|
|
|
1069 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_TOKEN);
|
|
|
1070 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX24);
|
|
|
1071 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX11);
|
|
|
1072 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_SECTION);
|
|
|
1073 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_SECREL);
|
|
|
1074 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_MOV32A);
|
|
|
1075 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_MOV32T);
|
|
|
1076 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH20T);
|
|
|
1077 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH24T);
|
|
|
1078 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX23T);
|
|
|
1079 default:
|
|
|
1080 Res = "Unknown";
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1081 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1082 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1083 case COFF::IMAGE_FILE_MACHINE_I386:
|
|
77
|
1084 switch (Reloc->Type) {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1085 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1086 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR16);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1087 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL16);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1088 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1089 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32NB);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1090 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SEG12);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1091 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECTION);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1092 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1093 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_TOKEN);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1094 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1095 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32);
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1096 default:
|
|
77
|
1097 Res = "Unknown";
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1098 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1099 break;
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1100 default:
|
|
77
|
1101 Res = "Unknown";
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1102 }
|
|
77
|
1103 Result.append(Res.begin(), Res.end());
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1104 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1105
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1106 #undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1107
|
|
77
|
1108 bool COFFObjectFile::isRelocatableObject() const {
|
|
|
1109 return !DataDirectory;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1110 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1111
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1112 bool ImportDirectoryEntryRef::
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1113 operator==(const ImportDirectoryEntryRef &Other) const {
|
|
77
|
1114 return ImportTable == Other.ImportTable && Index == Other.Index;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1115 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1116
|
|
77
|
1117 void ImportDirectoryEntryRef::moveNext() {
|
|
|
1118 ++Index;
|
|
|
1119 }
|
|
|
1120
|
|
|
1121 std::error_code ImportDirectoryEntryRef::getImportTableEntry(
|
|
|
1122 const import_directory_table_entry *&Result) const {
|
|
83
|
1123 Result = ImportTable + Index;
|
|
95
|
1124 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1125 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1126
|
|
83
|
1127 static imported_symbol_iterator
|
|
|
1128 makeImportedSymbolIterator(const COFFObjectFile *Object,
|
|
|
1129 uintptr_t Ptr, int Index) {
|
|
|
1130 if (Object->getBytesInAddress() == 4) {
|
|
|
1131 auto *P = reinterpret_cast<const import_lookup_table_entry32 *>(Ptr);
|
|
|
1132 return imported_symbol_iterator(ImportedSymbolRef(P, Index, Object));
|
|
|
1133 }
|
|
|
1134 auto *P = reinterpret_cast<const import_lookup_table_entry64 *>(Ptr);
|
|
|
1135 return imported_symbol_iterator(ImportedSymbolRef(P, Index, Object));
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 static imported_symbol_iterator
|
|
|
1139 importedSymbolBegin(uint32_t RVA, const COFFObjectFile *Object) {
|
|
|
1140 uintptr_t IntPtr = 0;
|
|
|
1141 Object->getRvaPtr(RVA, IntPtr);
|
|
|
1142 return makeImportedSymbolIterator(Object, IntPtr, 0);
|
|
|
1143 }
|
|
|
1144
|
|
|
1145 static imported_symbol_iterator
|
|
|
1146 importedSymbolEnd(uint32_t RVA, const COFFObjectFile *Object) {
|
|
|
1147 uintptr_t IntPtr = 0;
|
|
|
1148 Object->getRvaPtr(RVA, IntPtr);
|
|
|
1149 // Forward the pointer to the last entry which is null.
|
|
|
1150 int Index = 0;
|
|
|
1151 if (Object->getBytesInAddress() == 4) {
|
|
|
1152 auto *Entry = reinterpret_cast<ulittle32_t *>(IntPtr);
|
|
|
1153 while (*Entry++)
|
|
|
1154 ++Index;
|
|
|
1155 } else {
|
|
|
1156 auto *Entry = reinterpret_cast<ulittle64_t *>(IntPtr);
|
|
|
1157 while (*Entry++)
|
|
|
1158 ++Index;
|
|
|
1159 }
|
|
|
1160 return makeImportedSymbolIterator(Object, IntPtr, Index);
|
|
|
1161 }
|
|
|
1162
|
|
|
1163 imported_symbol_iterator
|
|
|
1164 ImportDirectoryEntryRef::imported_symbol_begin() const {
|
|
|
1165 return importedSymbolBegin(ImportTable[Index].ImportLookupTableRVA,
|
|
|
1166 OwningObject);
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 imported_symbol_iterator
|
|
|
1170 ImportDirectoryEntryRef::imported_symbol_end() const {
|
|
|
1171 return importedSymbolEnd(ImportTable[Index].ImportLookupTableRVA,
|
|
|
1172 OwningObject);
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 iterator_range<imported_symbol_iterator>
|
|
|
1176 ImportDirectoryEntryRef::imported_symbols() const {
|
|
|
1177 return make_range(imported_symbol_begin(), imported_symbol_end());
|
|
|
1178 }
|
|
|
1179
|
|
77
|
1180 std::error_code ImportDirectoryEntryRef::getName(StringRef &Result) const {
|
|
|
1181 uintptr_t IntPtr = 0;
|
|
|
1182 if (std::error_code EC =
|
|
83
|
1183 OwningObject->getRvaPtr(ImportTable[Index].NameRVA, IntPtr))
|
|
77
|
1184 return EC;
|
|
|
1185 Result = StringRef(reinterpret_cast<const char *>(IntPtr));
|
|
95
|
1186 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1187 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1188
|
|
83
|
1189 std::error_code
|
|
|
1190 ImportDirectoryEntryRef::getImportLookupTableRVA(uint32_t &Result) const {
|
|
|
1191 Result = ImportTable[Index].ImportLookupTableRVA;
|
|
95
|
1192 return std::error_code();
|
|
83
|
1193 }
|
|
|
1194
|
|
|
1195 std::error_code
|
|
|
1196 ImportDirectoryEntryRef::getImportAddressTableRVA(uint32_t &Result) const {
|
|
|
1197 Result = ImportTable[Index].ImportAddressTableRVA;
|
|
95
|
1198 return std::error_code();
|
|
83
|
1199 }
|
|
|
1200
|
|
77
|
1201 std::error_code ImportDirectoryEntryRef::getImportLookupEntry(
|
|
|
1202 const import_lookup_table_entry32 *&Result) const {
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1203 uintptr_t IntPtr = 0;
|
|
83
|
1204 uint32_t RVA = ImportTable[Index].ImportLookupTableRVA;
|
|
|
1205 if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
|
|
77
|
1206 return EC;
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1207 Result = reinterpret_cast<const import_lookup_table_entry32 *>(IntPtr);
|
|
95
|
1208 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1209 }
|
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1210
|
|
83
|
1211 bool DelayImportDirectoryEntryRef::
|
|
|
1212 operator==(const DelayImportDirectoryEntryRef &Other) const {
|
|
|
1213 return Table == Other.Table && Index == Other.Index;
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 void DelayImportDirectoryEntryRef::moveNext() {
|
|
|
1217 ++Index;
|
|
|
1218 }
|
|
|
1219
|
|
|
1220 imported_symbol_iterator
|
|
|
1221 DelayImportDirectoryEntryRef::imported_symbol_begin() const {
|
|
|
1222 return importedSymbolBegin(Table[Index].DelayImportNameTable,
|
|
|
1223 OwningObject);
|
|
|
1224 }
|
|
|
1225
|
|
|
1226 imported_symbol_iterator
|
|
|
1227 DelayImportDirectoryEntryRef::imported_symbol_end() const {
|
|
|
1228 return importedSymbolEnd(Table[Index].DelayImportNameTable,
|
|
|
1229 OwningObject);
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 iterator_range<imported_symbol_iterator>
|
|
|
1233 DelayImportDirectoryEntryRef::imported_symbols() const {
|
|
|
1234 return make_range(imported_symbol_begin(), imported_symbol_end());
|
|
|
1235 }
|
|
|
1236
|
|
|
1237 std::error_code DelayImportDirectoryEntryRef::getName(StringRef &Result) const {
|
|
|
1238 uintptr_t IntPtr = 0;
|
|
|
1239 if (std::error_code EC = OwningObject->getRvaPtr(Table[Index].Name, IntPtr))
|
|
|
1240 return EC;
|
|
|
1241 Result = StringRef(reinterpret_cast<const char *>(IntPtr));
|
|
95
|
1242 return std::error_code();
|
|
83
|
1243 }
|
|
|
1244
|
|
|
1245 std::error_code DelayImportDirectoryEntryRef::
|
|
|
1246 getDelayImportTable(const delay_import_directory_table_entry *&Result) const {
|
|
|
1247 Result = Table;
|
|
95
|
1248 return std::error_code();
|
|
83
|
1249 }
|
|
|
1250
|
|
|
1251 std::error_code DelayImportDirectoryEntryRef::
|
|
|
1252 getImportAddress(int AddrIndex, uint64_t &Result) const {
|
|
|
1253 uint32_t RVA = Table[Index].DelayImportAddressTable +
|
|
|
1254 AddrIndex * (OwningObject->is64() ? 8 : 4);
|
|
|
1255 uintptr_t IntPtr = 0;
|
|
|
1256 if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
|
|
|
1257 return EC;
|
|
|
1258 if (OwningObject->is64())
|
|
|
1259 Result = *reinterpret_cast<const ulittle64_t *>(IntPtr);
|
|
|
1260 else
|
|
|
1261 Result = *reinterpret_cast<const ulittle32_t *>(IntPtr);
|
|
95
|
1262 return std::error_code();
|
|
83
|
1263 }
|
|
|
1264
|
|
77
|
1265 bool ExportDirectoryEntryRef::
|
|
|
1266 operator==(const ExportDirectoryEntryRef &Other) const {
|
|
|
1267 return ExportTable == Other.ExportTable && Index == Other.Index;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 void ExportDirectoryEntryRef::moveNext() {
|
|
|
1271 ++Index;
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 // Returns the name of the current export symbol. If the symbol is exported only
|
|
|
1275 // by ordinal, the empty string is set as a result.
|
|
|
1276 std::error_code ExportDirectoryEntryRef::getDllName(StringRef &Result) const {
|
|
|
1277 uintptr_t IntPtr = 0;
|
|
|
1278 if (std::error_code EC =
|
|
|
1279 OwningObject->getRvaPtr(ExportTable->NameRVA, IntPtr))
|
|
|
1280 return EC;
|
|
|
1281 Result = StringRef(reinterpret_cast<const char *>(IntPtr));
|
|
95
|
1282 return std::error_code();
|
|
77
|
1283 }
|
|
|
1284
|
|
|
1285 // Returns the starting ordinal number.
|
|
|
1286 std::error_code
|
|
|
1287 ExportDirectoryEntryRef::getOrdinalBase(uint32_t &Result) const {
|
|
|
1288 Result = ExportTable->OrdinalBase;
|
|
95
|
1289 return std::error_code();
|
|
77
|
1290 }
|
|
|
1291
|
|
|
1292 // Returns the export ordinal of the current export symbol.
|
|
|
1293 std::error_code ExportDirectoryEntryRef::getOrdinal(uint32_t &Result) const {
|
|
|
1294 Result = ExportTable->OrdinalBase + Index;
|
|
95
|
1295 return std::error_code();
|
|
77
|
1296 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1297
|
|
77
|
1298 // Returns the address of the current export symbol.
|
|
|
1299 std::error_code ExportDirectoryEntryRef::getExportRVA(uint32_t &Result) const {
|
|
|
1300 uintptr_t IntPtr = 0;
|
|
|
1301 if (std::error_code EC =
|
|
|
1302 OwningObject->getRvaPtr(ExportTable->ExportAddressTableRVA, IntPtr))
|
|
|
1303 return EC;
|
|
|
1304 const export_address_table_entry *entry =
|
|
|
1305 reinterpret_cast<const export_address_table_entry *>(IntPtr);
|
|
|
1306 Result = entry[Index].ExportRVA;
|
|
95
|
1307 return std::error_code();
|
|
77
|
1308 }
|
|
|
1309
|
|
|
1310 // Returns the name of the current export symbol. If the symbol is exported only
|
|
|
1311 // by ordinal, the empty string is set as a result.
|
|
|
1312 std::error_code
|
|
|
1313 ExportDirectoryEntryRef::getSymbolName(StringRef &Result) const {
|
|
|
1314 uintptr_t IntPtr = 0;
|
|
|
1315 if (std::error_code EC =
|
|
|
1316 OwningObject->getRvaPtr(ExportTable->OrdinalTableRVA, IntPtr))
|
|
|
1317 return EC;
|
|
|
1318 const ulittle16_t *Start = reinterpret_cast<const ulittle16_t *>(IntPtr);
|
|
|
1319
|
|
|
1320 uint32_t NumEntries = ExportTable->NumberOfNamePointers;
|
|
|
1321 int Offset = 0;
|
|
|
1322 for (const ulittle16_t *I = Start, *E = Start + NumEntries;
|
|
|
1323 I < E; ++I, ++Offset) {
|
|
|
1324 if (*I != Index)
|
|
|
1325 continue;
|
|
|
1326 if (std::error_code EC =
|
|
|
1327 OwningObject->getRvaPtr(ExportTable->NamePointerRVA, IntPtr))
|
|
|
1328 return EC;
|
|
|
1329 const ulittle32_t *NamePtr = reinterpret_cast<const ulittle32_t *>(IntPtr);
|
|
|
1330 if (std::error_code EC = OwningObject->getRvaPtr(NamePtr[Offset], IntPtr))
|
|
|
1331 return EC;
|
|
|
1332 Result = StringRef(reinterpret_cast<const char *>(IntPtr));
|
|
95
|
1333 return std::error_code();
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1334 }
|
|
77
|
1335 Result = "";
|
|
95
|
1336 return std::error_code();
|
|
77
|
1337 }
|
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1338
|
|
83
|
1339 bool ImportedSymbolRef::
|
|
|
1340 operator==(const ImportedSymbolRef &Other) const {
|
|
|
1341 return Entry32 == Other.Entry32 && Entry64 == Other.Entry64
|
|
|
1342 && Index == Other.Index;
|
|
|
1343 }
|
|
|
1344
|
|
|
1345 void ImportedSymbolRef::moveNext() {
|
|
|
1346 ++Index;
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 std::error_code
|
|
|
1350 ImportedSymbolRef::getSymbolName(StringRef &Result) const {
|
|
|
1351 uint32_t RVA;
|
|
|
1352 if (Entry32) {
|
|
|
1353 // If a symbol is imported only by ordinal, it has no name.
|
|
|
1354 if (Entry32[Index].isOrdinal())
|
|
95
|
1355 return std::error_code();
|
|
83
|
1356 RVA = Entry32[Index].getHintNameRVA();
|
|
|
1357 } else {
|
|
|
1358 if (Entry64[Index].isOrdinal())
|
|
95
|
1359 return std::error_code();
|
|
83
|
1360 RVA = Entry64[Index].getHintNameRVA();
|
|
|
1361 }
|
|
|
1362 uintptr_t IntPtr = 0;
|
|
|
1363 if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
|
|
|
1364 return EC;
|
|
|
1365 // +2 because the first two bytes is hint.
|
|
|
1366 Result = StringRef(reinterpret_cast<const char *>(IntPtr + 2));
|
|
95
|
1367 return std::error_code();
|
|
83
|
1368 }
|
|
|
1369
|
|
|
1370 std::error_code ImportedSymbolRef::getOrdinal(uint16_t &Result) const {
|
|
|
1371 uint32_t RVA;
|
|
|
1372 if (Entry32) {
|
|
|
1373 if (Entry32[Index].isOrdinal()) {
|
|
|
1374 Result = Entry32[Index].getOrdinal();
|
|
95
|
1375 return std::error_code();
|
|
83
|
1376 }
|
|
|
1377 RVA = Entry32[Index].getHintNameRVA();
|
|
|
1378 } else {
|
|
|
1379 if (Entry64[Index].isOrdinal()) {
|
|
|
1380 Result = Entry64[Index].getOrdinal();
|
|
95
|
1381 return std::error_code();
|
|
83
|
1382 }
|
|
|
1383 RVA = Entry64[Index].getHintNameRVA();
|
|
|
1384 }
|
|
|
1385 uintptr_t IntPtr = 0;
|
|
|
1386 if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
|
|
|
1387 return EC;
|
|
|
1388 Result = *reinterpret_cast<const ulittle16_t *>(IntPtr);
|
|
95
|
1389 return std::error_code();
|
|
83
|
1390 }
|
|
|
1391
|
|
77
|
1392 ErrorOr<std::unique_ptr<COFFObjectFile>>
|
|
|
1393 ObjectFile::createCOFFObjectFile(MemoryBufferRef Object) {
|
|
|
1394 std::error_code EC;
|
|
|
1395 std::unique_ptr<COFFObjectFile> Ret(new COFFObjectFile(Object, EC));
|
|
|
1396 if (EC)
|
|
|
1397 return EC;
|
|
|
1398 return std::move(Ret);
|
|
|
1399 }
|
|
83
|
1400
|
|
|
1401 bool BaseRelocRef::operator==(const BaseRelocRef &Other) const {
|
|
|
1402 return Header == Other.Header && Index == Other.Index;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405 void BaseRelocRef::moveNext() {
|
|
|
1406 // Header->BlockSize is the size of the current block, including the
|
|
|
1407 // size of the header itself.
|
|
|
1408 uint32_t Size = sizeof(*Header) +
|
|
|
1409 sizeof(coff_base_reloc_block_entry) * (Index + 1);
|
|
|
1410 if (Size == Header->BlockSize) {
|
|
|
1411 // .reloc contains a list of base relocation blocks. Each block
|
|
|
1412 // consists of the header followed by entries. The header contains
|
|
|
1413 // how many entories will follow. When we reach the end of the
|
|
|
1414 // current block, proceed to the next block.
|
|
|
1415 Header = reinterpret_cast<const coff_base_reloc_block_header *>(
|
|
|
1416 reinterpret_cast<const uint8_t *>(Header) + Size);
|
|
|
1417 Index = 0;
|
|
|
1418 } else {
|
|
|
1419 ++Index;
|
|
|
1420 }
|
|
|
1421 }
|
|
|
1422
|
|
|
1423 std::error_code BaseRelocRef::getType(uint8_t &Type) const {
|
|
|
1424 auto *Entry = reinterpret_cast<const coff_base_reloc_block_entry *>(Header + 1);
|
|
|
1425 Type = Entry[Index].getType();
|
|
95
|
1426 return std::error_code();
|
|
83
|
1427 }
|
|
|
1428
|
|
|
1429 std::error_code BaseRelocRef::getRVA(uint32_t &Result) const {
|
|
|
1430 auto *Entry = reinterpret_cast<const coff_base_reloc_block_entry *>(Header + 1);
|
|
|
1431 Result = Header->PageRVA + Entry[Index].getOffset();
|
|
95
|
1432 return std::error_code();
|
|
83
|
1433 }
|
