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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU Lesser General Public License as published by |
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7 * the Free Software Foundation, either version 3 of the License, or |
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8 * (at your option) any later version. |
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9 * |
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10 * This program 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 |
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13 * GNU Lesser 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 Lesser General Public License |
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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17 */ |
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18 |
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19 #ifndef DWARFDEFS_H_ |
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20 #define DWARFDEFS_H_ |
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21 |
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22 //#include <libdwarf.h> |
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23 /* to identify a cie */ |
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24 |
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25 |
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26 #define DW_CIE_ID ~(0x0) |
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27 #define DW_CIE_VERSION 1 /* DWARF2 */ |
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28 #define DW_CIE_VERSION3 3 /* DWARF3 */ |
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29 #define ABBREV_HASH_TABLE_SIZE 10 |
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30 |
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31 typedef int Dwarf_Bool; /* boolean type */ |
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32 // |
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33 // Copyright (c) 2008 Symbian Software Ltd. All rights reserved. |
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34 // |
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35 |
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36 typedef unsigned long long Dwarf_Off; /* 8 byte file offset */ |
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37 typedef unsigned long long Dwarf_Unsigned; /* 8 byte unsigned value*/ |
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38 typedef unsigned short Dwarf_Half; /* 2 byte unsigned value */ |
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39 typedef unsigned char Dwarf_Small; /* 1 byte unsigned value */ |
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40 typedef signed long long Dwarf_Signed; /* 8 byte signed value */ |
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41 typedef unsigned long long Dwarf_Addr; /* target memory address */ |
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42 |
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43 typedef void* Dwarf_Ptr; /* host machine pointer */ |
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44 |
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45 typedef unsigned long Dwarf_Word; |
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46 typedef signed long Dwarf_Sword; |
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47 |
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48 typedef signed char Dwarf_Sbyte; |
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49 typedef unsigned char Dwarf_Ubyte; |
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50 typedef signed short Dwarf_Shalf; |
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51 typedef Dwarf_Ubyte *Dwarf_Byte_Ptr; |
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52 |
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53 /* these 2 are fixed sizes which must not vary with the |
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54 ** ILP32/LP64 model. Between these two, stay at 32 bit. |
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55 */ |
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56 typedef unsigned int Dwarf_ufixed; |
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57 typedef int Dwarf_sfixed; |
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58 |
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59 /* |
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60 In various places the code mistakenly associates |
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61 forms 8 bytes long with Dwarf_Signed or Dwarf_Unsigned |
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62 This is not a very portable assumption. |
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63 The following should be used instead for 64 bit integers. |
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64 */ |
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65 typedef unsigned long long Dwarf_ufixed64; |
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66 typedef long long Dwarf_sfixed64; |
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67 |
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68 char * GetDwarfTag(Dwarf_Unsigned aTag); |
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69 char * GetDwarfAttr(Dwarf_Half attr); |
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70 char * GetDwarfForm(Dwarf_Half form); |
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71 |
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72 #define READ_UNALIGNED2(aPtr)ReadUnaligned2(aPtr) |
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73 static inline Dwarf_Word ReadUnaligned2(Dwarf_Byte_Ptr aPtr){ |
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74 Dwarf_Byte_Ptr p = aPtr; |
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75 return p[0] | (p[1] << 8); |
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76 } |
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77 #define READ_UNALIGNED4(aPtr)ReadUnaligned4(aPtr) |
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78 static inline Dwarf_Word ReadUnaligned4(Dwarf_Byte_Ptr aPtr){ |
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79 Dwarf_Byte_Ptr p = aPtr; |
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80 return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); |
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81 } |
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82 #define WRITE_UNALIGNED2(aPtr, val)WriteUnaligned2(aPtr, val) |
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83 static inline void WriteUnaligned2(Dwarf_Byte_Ptr aPtr, Dwarf_Word val){ |
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84 Dwarf_Byte_Ptr p = aPtr; |
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85 p[0] = val & 0xff; |
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86 p[1] = (val >> 8) & 0xff; |
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87 } |
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88 |
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89 #define WRITE_UNALIGNED4(aPtr, val)WriteUnaligned4(aPtr, val) |
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90 static inline void WriteUnaligned4(Dwarf_Byte_Ptr aPtr, Dwarf_Word val){ |
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91 Dwarf_Byte_Ptr p = aPtr; |
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92 p[0] = val & 0xff; |
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93 p[1] = (val >> 8) & 0xff; |
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94 p[2] = (val >> 16) & 0xff; |
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95 p[3] = (val >> 24) & 0xff; |
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96 } |
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97 |
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98 #include <iostream> |
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99 static inline Dwarf_Word GetValue(Dwarf_Byte_Ptr start, size_t size){ |
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100 switch (size){ |
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101 default: |
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102 case 0: { |
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103 std::cerr << "Error: size of " << size << " not allowed\n"; |
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104 exit(EXIT_FAILURE); |
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105 } |
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106 case 2: |
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107 return READ_UNALIGNED2(start); |
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108 case 4: |
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109 return READ_UNALIGNED4(start); |
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110 case 8: { |
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111 std::cerr << "Error: 64 bit values not support yet\n"; |
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112 exit(EXIT_FAILURE); |
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113 } |
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114 } |
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115 } |
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116 |
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117 static inline void WriteValue(Dwarf_Byte_Ptr start, Dwarf_Word val, size_t size){ |
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118 switch (size){ |
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119 default: |
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120 case 0: { |
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121 std::cerr << "Error: size of " << size << " not allowed\n"; |
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122 exit(EXIT_FAILURE); |
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123 } |
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124 case 2: |
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125 WRITE_UNALIGNED2(start, val); |
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126 break; |
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127 case 4: |
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128 WRITE_UNALIGNED4(start, val); |
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129 break; |
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130 case 8: { |
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131 std::cerr << "Error: 64 bit values not support yet\n"; |
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132 exit(EXIT_FAILURE); |
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133 } |
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134 } |
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135 |
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136 } |
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137 |
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138 // TODO: for the moment just say 4 - we are dealing with 32 bit ARM for the foreseeable future |
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139 // in the future we need to figure out where to get this from... |
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140 #define ENCODED_POINTER_SIZE 4 |
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141 |
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142 #endif /*DWARFDEFS_H_*/ |