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1 /* |
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2 32.fsize.c - implementation of the elf{32,64}_fsize(3) functions. |
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3 Copyright (C) 1995 - 2001 Michael Riepe |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Library General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Library General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 */ |
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19 |
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20 #include <private.h> |
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21 #include <ext_types.h> |
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22 |
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23 #ifndef lint |
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24 static const char rcsid[] = "@(#) $Id: 32.fsize.c,v 1.12 2005/05/21 15:39:19 michael Exp $"; |
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25 #endif /* lint */ |
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26 |
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27 const size_t |
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28 _elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2] = { |
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29 /* ELFCLASS32 */ |
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30 { |
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31 /* version 1 */ |
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32 { |
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33 { sizeof(unsigned char), sizeof(unsigned char) }, |
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34 { sizeof(Elf32_Addr), sizeof(__ext_Elf32_Addr) }, |
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35 { sizeof(Elf32_Dyn), sizeof(__ext_Elf32_Dyn) }, |
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36 { sizeof(Elf32_Ehdr), sizeof(__ext_Elf32_Ehdr) }, |
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37 { sizeof(Elf32_Half), sizeof(__ext_Elf32_Half) }, |
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38 { sizeof(Elf32_Off), sizeof(__ext_Elf32_Off) }, |
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39 { sizeof(Elf32_Phdr), sizeof(__ext_Elf32_Phdr) }, |
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40 { sizeof(Elf32_Rela), sizeof(__ext_Elf32_Rela) }, |
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41 { sizeof(Elf32_Rel), sizeof(__ext_Elf32_Rel) }, |
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42 { sizeof(Elf32_Shdr), sizeof(__ext_Elf32_Shdr) }, |
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43 { sizeof(Elf32_Sword), sizeof(__ext_Elf32_Sword) }, |
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44 { sizeof(Elf32_Sym), sizeof(__ext_Elf32_Sym) }, |
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45 { sizeof(Elf32_Word), sizeof(__ext_Elf32_Word) }, |
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46 { 0, 0 }, /* there is no Elf32_Sxword */ |
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47 { 0, 0 }, /* there is no Elf32_Xword */ |
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48 /* XXX: check Solaris values */ |
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49 { 0, 0 }, /* Elf32_Verdef/Verdaux size varies */ |
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50 { 0, 0 }, /* Elf32_Verneed/Vernaux size varies */ |
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51 }, |
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52 }, |
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53 #if __LIBELF64 |
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54 /* ELFCLASS64 */ |
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55 { |
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56 /* version 1 */ |
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57 { |
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58 { sizeof(unsigned char), sizeof(unsigned char) }, |
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59 { sizeof(Elf64_Addr), sizeof(__ext_Elf64_Addr) }, |
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60 { sizeof(Elf64_Dyn), sizeof(__ext_Elf64_Dyn) }, |
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61 { sizeof(Elf64_Ehdr), sizeof(__ext_Elf64_Ehdr) }, |
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62 { sizeof(Elf64_Half), sizeof(__ext_Elf64_Half) }, |
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63 { sizeof(Elf64_Off), sizeof(__ext_Elf64_Off) }, |
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64 { sizeof(Elf64_Phdr), sizeof(__ext_Elf64_Phdr) }, |
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65 { sizeof(Elf64_Rela), sizeof(__ext_Elf64_Rela) }, |
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66 { sizeof(Elf64_Rel), sizeof(__ext_Elf64_Rel) }, |
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67 { sizeof(Elf64_Shdr), sizeof(__ext_Elf64_Shdr) }, |
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68 { sizeof(Elf64_Sword), sizeof(__ext_Elf64_Sword) }, |
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69 { sizeof(Elf64_Sym), sizeof(__ext_Elf64_Sym) }, |
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70 { sizeof(Elf64_Word), sizeof(__ext_Elf64_Word) }, |
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71 { sizeof(Elf64_Sxword), sizeof(__ext_Elf64_Sxword) }, |
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72 { sizeof(Elf64_Xword), sizeof(__ext_Elf64_Xword) }, |
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73 /* XXX: check Solaris values */ |
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74 { 0, 0 }, /* Elf64_Verdef/Verdaux size varies */ |
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75 { 0, 0 }, /* Elf64_Verneed/Vernaux size varies */ |
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76 }, |
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77 }, |
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78 #endif /* __LIBELF64 */ |
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79 }; |
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80 |
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81 static size_t |
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82 _elf_fsize(unsigned cls, Elf_Type type, unsigned ver) { |
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83 size_t n = 0; |
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84 |
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85 if (!valid_version(ver)) { |
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86 seterr(ERROR_UNKNOWN_VERSION); |
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87 } |
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88 else if (!valid_type(type)) { |
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89 seterr(ERROR_UNKNOWN_TYPE); |
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90 } |
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91 else if (!(n = _fsize(cls, ver, type))) { |
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92 seterr(ERROR_UNKNOWN_TYPE); |
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93 } |
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94 return n; |
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95 } |
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96 |
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97 size_t |
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98 elf32_fsize(Elf_Type type, size_t count, unsigned ver) { |
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99 return count * _elf_fsize(ELFCLASS32, type, ver); |
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100 } |
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101 |
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102 #if __LIBELF64 |
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103 |
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104 size_t |
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105 elf64_fsize(Elf_Type type, size_t count, unsigned ver) { |
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106 return count * _elf_fsize(ELFCLASS64, type, ver); |
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107 } |
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108 |
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109 size_t |
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110 gelf_fsize(Elf *elf, Elf_Type type, size_t count, unsigned ver) { |
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111 if (elf) { |
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112 if (elf->e_kind != ELF_K_ELF) { |
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113 seterr(ERROR_NOTELF); |
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114 } |
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115 else if (valid_class(elf->e_class)) { |
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116 return count * _elf_fsize(elf->e_class, type, ver); |
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117 } |
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118 else { |
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119 seterr(ERROR_UNKNOWN_CLASS); |
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120 } |
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121 } |
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122 return 0; |
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123 } |
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124 |
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125 /* |
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126 * Extension: report memory size |
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127 */ |
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128 size_t |
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129 gelf_msize(Elf *elf, Elf_Type type, size_t count, unsigned ver) { |
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130 size_t n; |
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131 |
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132 if (elf) { |
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133 if (elf->e_kind != ELF_K_ELF) { |
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134 seterr(ERROR_NOTELF); |
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135 } |
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136 else if (!valid_class(elf->e_class)) { |
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137 seterr(ERROR_UNKNOWN_CLASS); |
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138 } |
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139 else if (!valid_version(ver)) { |
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140 seterr(ERROR_UNKNOWN_VERSION); |
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141 } |
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142 else if (!valid_type(type)) { |
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143 seterr(ERROR_UNKNOWN_TYPE); |
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144 } |
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145 else if (!(n = _msize(elf->e_class, ver, type))) { |
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146 seterr(ERROR_UNKNOWN_TYPE); |
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147 } |
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148 else { |
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149 return count * n; |
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150 } |
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151 } |
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152 return 0; |
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153 } |
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154 |
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155 #endif /* __LIBELF64 */ |