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150
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1 # RUN: ld64.lld -arch arm64 -r -print_atoms %s -o %t | FileCheck %s
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2 # RUN: ld64.lld -arch arm64 -r -print_atoms %t -o %t2 | FileCheck %s
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173
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3 # RUN: llvm-objdump -r -s --section="__eh_frame" --macho %t | FileCheck --check-prefix=CODE %s
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4 # RUN: llvm-objdump -r -s --section="__eh_frame" --macho %t2 | FileCheck --check-prefix=CODE %s
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150
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5
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6
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7 --- !mach-o
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8 arch: arm64
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9 file-type: MH_OBJECT
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10 flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
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11 compat-version: 0.0
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12 current-version: 0.0
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13 has-UUID: false
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14 OS: unknown
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15 sections:
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16 - segment: __TEXT
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17 section: __text
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18 type: S_REGULAR
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19 attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
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20 alignment: 4
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21 address: 0x0000000000000000
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22 content: [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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23 0xC0, 0x03, 0x5F, 0xD6, 0xC0, 0x03, 0x5F, 0xD6,
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24 0xC0, 0x03, 0x5F, 0xD6 ]
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25 - segment: __TEXT
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26 section: __gcc_except_tab
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27 type: S_REGULAR
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28 attributes: [ ]
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29 address: 0x0000000000000014
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30 content: [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
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31 - segment: __DATA
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32 section: __data
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33 type: S_REGULAR
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34 attributes: [ ]
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35 address: 0x000000000000001C
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36 content: [ 0x00, 0x00, 0x00, 0x00 ]
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37 - segment: __LD
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38 section: __compact_unwind
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39 type: S_REGULAR
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40 attributes: [ ]
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41 alignment: 8
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42 address: 0x0000000000000020
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43 content: [ 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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44 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
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45 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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47 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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48 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
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49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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50 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
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51 relocations:
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52 - offset: 0x00000020
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53 type: ARM64_RELOC_UNSIGNED
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54 length: 3
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55 pc-rel: false
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56 extern: false
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57 symbol: 1
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58 - offset: 0x00000000
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59 type: ARM64_RELOC_UNSIGNED
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60 length: 3
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61 pc-rel: false
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62 extern: false
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63 symbol: 1
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64 - segment: __TEXT
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65 section: __eh_frame
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66 type: S_COALESCED
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67 attributes: [ ]
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68 alignment: 8
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69 address: 0x0000000000000060
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70 content: [ 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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71 0x03, 0x7A, 0x50, 0x4C, 0x52, 0x00, 0x01, 0x78,
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72 0x1E, 0x07, 0x9B, 0xED, 0xFF, 0xFF, 0xFF, 0x10,
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73 0x10, 0x0C, 0x1F, 0x00, 0x28, 0x00, 0x00, 0x00,
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74 0x20, 0x00, 0x00, 0x00, 0xDC, 0xFF, 0xFF, 0xFF,
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75 0xFF, 0xFF, 0xFF, 0xFF, 0x04, 0x00, 0x00, 0x00,
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76 0x00, 0x00, 0x00, 0x00, 0x08, 0xCB, 0xFF, 0xFF,
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77 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0E, 0x10, 0x9E,
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78 0x01, 0x9D, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
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79 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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80 0x03, 0x7A, 0x50, 0x4C, 0x52, 0x00, 0x01, 0x78,
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81 0x1E, 0x07, 0x9B, 0xA9, 0xFF, 0xFF, 0xFF, 0x10,
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82 0x10, 0x0C, 0x1F, 0x00, 0x28, 0x00, 0x00, 0x00,
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83 0x20, 0x00, 0x00, 0x00, 0x94, 0xFF, 0xFF, 0xFF,
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84 0xFF, 0xFF, 0xFF, 0xFF, 0x04, 0x00, 0x00, 0x00,
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85 0x00, 0x00, 0x00, 0x00, 0x08, 0x83, 0xFF, 0xFF,
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86 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0E, 0x10, 0x9E,
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87 0x01, 0x9D, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00 ]
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88 relocations:
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89 - offset: 0x0000007D
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90 type: ARM64_RELOC_SUBTRACTOR
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91 length: 3
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92 pc-rel: false
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93 extern: true
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94 symbol: 6
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95 - offset: 0x0000007D
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96 type: ARM64_RELOC_UNSIGNED
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97 length: 3
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98 pc-rel: false
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99 extern: true
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100 symbol: 3
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101 - offset: 0x0000006C
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102 type: ARM64_RELOC_SUBTRACTOR
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103 length: 3
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104 pc-rel: false
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105 extern: true
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106 symbol: 6
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107 - offset: 0x0000006C
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108 type: ARM64_RELOC_UNSIGNED
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109 length: 3
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110 pc-rel: false
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111 extern: true
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112 symbol: 8
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113 - offset: 0x0000005B
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114 type: ARM64_RELOC_POINTER_TO_GOT
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115 length: 2
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116 pc-rel: true
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117 extern: true
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118 symbol: 10
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119 - offset: 0x00000035
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120 type: ARM64_RELOC_SUBTRACTOR
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121 length: 3
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122 pc-rel: false
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123 extern: true
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124 symbol: 6
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125 - offset: 0x00000035
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126 type: ARM64_RELOC_UNSIGNED
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127 length: 3
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128 pc-rel: false
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129 extern: true
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130 symbol: 2
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131 - offset: 0x00000024
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132 type: ARM64_RELOC_SUBTRACTOR
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133 length: 3
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134 pc-rel: false
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135 extern: true
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136 symbol: 6
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137 - offset: 0x00000024
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138 type: ARM64_RELOC_UNSIGNED
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139 length: 3
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140 pc-rel: false
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141 extern: true
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142 symbol: 7
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143 - offset: 0x00000013
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144 type: ARM64_RELOC_POINTER_TO_GOT
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145 length: 2
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146 pc-rel: true
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147 extern: true
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148 symbol: 9
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149 local-symbols:
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150 - name: ltmp0
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151 type: N_SECT
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152 sect: 1
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153 value: 0x0000000000000000
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154 - name: ltmp1
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155 type: N_SECT
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156 sect: 2
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157 value: 0x0000000000000014
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158 - name: _bar1
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159 type: N_SECT
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160 sect: 2
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161 value: 0x0000000000000014
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162 - name: _bar2
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163 type: N_SECT
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164 sect: 2
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165 value: 0x0000000000000018
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166 - name: ltmp12
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167 type: N_SECT
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168 sect: 3
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169 value: 0x000000000000001C
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170 - name: ltmp13
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171 type: N_SECT
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172 sect: 4
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173 value: 0x0000000000000020
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174 - name: ltmp16
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175 type: N_SECT
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176 sect: 5
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177 value: 0x0000000000000060
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178 global-symbols:
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179 - name: __Z3fooi
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180 type: N_SECT
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181 scope: [ N_EXT ]
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182 sect: 1
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183 value: 0x0000000000000008
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184 - name: __Z4foo2i
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185 type: N_SECT
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186 scope: [ N_EXT ]
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187 sect: 1
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188 value: 0x000000000000000C
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189 - name: __gxx_personality_v0
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190 type: N_SECT
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191 scope: [ N_EXT ]
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192 sect: 1
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193 value: 0x0000000000000000
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194 - name: __gxx_personality_v1
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195 type: N_SECT
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196 scope: [ N_EXT ]
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197 sect: 1
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198 value: 0x0000000000000004
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199 - name: _main
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200 type: N_SECT
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201 scope: [ N_EXT ]
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202 sect: 1
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203 value: 0x0000000000000010
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204 - name: _someData
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205 type: N_SECT
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206 scope: [ N_EXT ]
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207 sect: 3
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208 value: 0x000000000000001C
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209 page-size: 0x00000000
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210 ...
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211
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212 # CHECK: --- !native
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213 # CHECK: path: '<linker-internal>'
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214 # CHECK: defined-atoms:
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215 # CHECK: - ref-name: L000
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216 # CHECK: type: unwind-cfi
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217 # CHECK: content: [ 18, 00, 00, 00, 00, 00, 00, 00, 03, 7A, 50, 4C,
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218 # CHECK: 52, 00, 01, 78, 1E, 07, 9B, {{..}}, {{..}}, {{..}}, {{..}}, 10,
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219 # CHECK: 10, 0C, 1F, 00 ]
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220 # CHECK: alignment: 8
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221 # CHECK: references:
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222 # CHECK: - kind: unwindCIEToPersonalityFunction
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223 # CHECK: offset: 19
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224 # CHECK: target: __gxx_personality_v0
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225 # CHECK: - type: unwind-cfi
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226 # CHECK: content: [ 28, 00, 00, 00, 20, 00, 00, 00, {{..}}, {{..}}, {{..}}, {{..}},
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227 # CHECK: {{..}}, {{..}}, {{..}}, {{..}}, 04, 00, 00, 00, 00, 00, 00, 00,
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228 # CHECK: 08, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, 0E, 10, 9E,
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229 # CHECK: 01, 9D, 02, 00, 00, 00, 00, 00 ]
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230 # CHECK: alignment: 4 mod 8
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231 # CHECK: references:
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232 # CHECK: - kind: negDelta32
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233 # CHECK: offset: 4
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234 # CHECK: target: L000
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235 # CHECK: - kind: unwindFDEToFunction
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236 # CHECK: offset: 8
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237 # CHECK: target: __Z3fooi
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238 # CHECK: - kind: unwindFDEToFunction
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239 # CHECK: offset: 25
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240 # CHECK: target: _bar1
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241 # CHECK: - ref-name: L001
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242 # CHECK: type: unwind-cfi
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243 # CHECK: content: [ 18, 00, 00, 00, 00, 00, 00, 00, 03, 7A, 50, 4C,
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244 # CHECK: 52, 00, 01, 78, 1E, 07, 9B, {{..}}, {{..}}, {{..}}, {{..}}, 10,
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245 # CHECK: 10, 0C, 1F, 00 ]
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246 # CHECK: alignment: 8
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247 # CHECK: references:
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248 # CHECK: - kind: unwindCIEToPersonalityFunction
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249 # CHECK: offset: 19
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250 # CHECK: target: __gxx_personality_v1
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251 # CHECK: - type: unwind-cfi
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252 # CHECK: content: [ 28, 00, 00, 00, 20, 00, 00, 00, {{..}}, {{..}}, {{..}}, {{..}},
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253 # CHECK: {{..}}, {{..}}, {{..}}, {{..}}, 04, 00, 00, 00, 00, 00, 00, 00,
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254 # CHECK: 08, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, {{..}}, 0E, 10, 9E,
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255 # CHECK: 01, 9D, 02, 00, 00, 00, 00, 00 ]
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256 # CHECK: alignment: 4 mod 8
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257 # CHECK: references:
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258 # CHECK: - kind: negDelta32
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259 # CHECK: offset: 4
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260 # CHECK: target: L001
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261 # CHECK: - kind: unwindFDEToFunction
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262 # CHECK: offset: 8
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263 # CHECK: target: __Z4foo2i
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264 # CHECK: - kind: unwindFDEToFunction
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265 # CHECK: offset: 25
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266 # CHECK: target: _bar2
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267 # CHECK: - name: _bar1
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268 # CHECK: type: unwind-lsda
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269 # CHECK: content: [ 00, 00, 00, 00 ]
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270 # CHECK: - name: _bar2
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271 # CHECK: type: unwind-lsda
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272 # CHECK: content: [ 00, 00, 00, 00 ]
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273 # CHECK: - name: _someData
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274 # CHECK: scope: global
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275 # CHECK: type: data
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276 # CHECK: content: [ 00, 00, 00, 00 ]
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277 # CHECK: - name: __gxx_personality_v0
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278 # CHECK: scope: global
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279 # CHECK: content: [ 00, 00, 00, 00 ]
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280 # CHECK: alignment: 4
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281 # CHECK: - name: __gxx_personality_v1
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282 # CHECK: scope: global
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283 # CHECK: content: [ 00, 00, 00, 00 ]
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284 # CHECK: alignment: 4
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285 # CHECK: - name: __Z3fooi
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286 # CHECK: scope: global
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287 # CHECK: content: [ C0, 03, 5F, D6 ]
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288 # CHECK: alignment: 4
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289 # CHECK: - name: __Z4foo2i
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290 # CHECK: scope: global
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291 # CHECK: content: [ C0, 03, 5F, D6 ]
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292 # CHECK: alignment: 4
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293 # CHECK: - name: _main
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294 # CHECK: scope: global
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295 # CHECK: content: [ C0, 03, 5F, D6 ]
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296 # CHECK: alignment: 4
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297 # CHECK: ...
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298
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299 # # Make sure we don't have any relocations in the __eh_frame section
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300 # CODE-NOT: RELOCATION RECORDS FOR [__eh_frame]
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301
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302 # Also make sure the reloc for the CIE->personality function is the
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303 # correct offset
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304 # It should be the offset from the fixup location back to the address
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305 # of the function we are referencing
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306 # CODE: Contents of section __eh_frame:
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307 # This is the CIE:
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308 # CODE-NEXT: {{[0-9abcdef]*}} 18000000 00000000 037a504c 52000178
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309 # CODE-NEXT: {{[0-9abcdef]*}} 1e079bd1 ffffff10 100c1f00 28000000
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310 # This is the important offset for CIE->pfunc
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311 # ^~~~~~~~~
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312 # Then we have an FDE starting from 28000000 above
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313 # CODE-NEXT: {{[0-9abcdef]*}} 20000000 c8ffffff ffffffff 04000000
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314 # CODE-NEXT: {{[0-9abcdef]*}} 00000000 08c3ffff ffffffff ff0e109e
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315 # And a new CIE starts at this 00000018 right below here
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316 # CODE-NEXT: {{[0-9abcdef]*}} 019d0200 00000000 18000000 00000000
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317 # CODE-NEXT: {{[0-9abcdef]*}} 037a504c 52000178 1e079b8d ffffff10
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318 # This is the important offset for its CIE->pfunc ^~~~~~~~~ |
