1## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verdef sections. 2 3## Check that we report a warning when sh_link references a non-existent section. 4 5# RUN: yaml2obj %s --docnum=1 -DLINK=0xFF -o %t1 6# RUN: llvm-readobj -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-LLVM --implicit-check-not="warning:" -DFILE=%t1 7# RUN: llvm-readelf -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-GNU --implicit-check-not="warning:" -DFILE=%t1 8 9# INVALID-LINK-LLVM: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255 10 11# INVALID-LINK-GNU: Version definition section '.gnu.version_d' contains 0 entries: 12# INVALID-LINK-GNU: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255 13# INVALID-LINK-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 255 (<corrupt>) 14 15--- !ELF 16FileHeader: 17 Class: ELFCLASS64 18 Data: ELFDATA2LSB 19 Type: ET_DYN 20Sections: 21 - Name: .gnu.version_d 22 Type: SHT_GNU_verdef 23 Link: [[LINK]] 24 Info: 0x0 25 Entries: [] 26 27## Check that we report a warning when the sh_link field of a SHT_GNU_verdef section references a non-string table section. 28 29# RUN: yaml2obj %s --docnum=1 -DLINK=0x0 -o %t2 30# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2 31# RUN: llvm-readelf -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2 32 33# INVALID-STRING-TABLE: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verdef section with index 1: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL 34 35## Check that we report a warning when we can't read the content of the SHT_GNU_verdef section. 36 37# RUN: yaml2obj %s --docnum=2 -DSHOFFSET=0xFFFFFFFF -o %t3 38# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3 39# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3 40 41# INVALID-DATA: warning: '[[FILE]]': cannot read content of SHT_GNU_verdef section with index 1: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x0) that is greater than the file size (0x230) 42 43--- !ELF 44FileHeader: 45 Class: ELFCLASS64 46 Data: ELFDATA2LSB 47 Type: ET_DYN 48Sections: 49 - Name: .gnu.version_d 50 Type: SHT_GNU_verdef 51 Link: .dynstr 52 Info: 0x0 53 Entries: [] 54 ShOffset: [[SHOFFSET=<none>]] 55 ShName: [[SHNAME=<none>]] 56 - Name: .dynstr 57 Type: SHT_STRTAB 58 ShName: [[DYNSTRNAME=<none>]] 59DynamicSymbols: 60 - Name: foo 61 62## Check that llvm-readelf reports a warning when the name of the SHT_GNU_verdef section can't be read. 63 64# RUN: yaml2obj %s --docnum=2 -DSHNAME=0xFF -o %t.invalid.name 65# RUN: llvm-readobj -V %t.invalid.name 2>&1 | \ 66# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name --implicit-check-not=warning: 67# RUN: llvm-readelf -V %t.invalid.name 2>&1 | \ 68# RUN: FileCheck %s --check-prefix=INVALID-NAME-GNU -DFILE=%t.invalid.name --implicit-check-not=warning: 69 70# INVALID-NAME-LLVM: VersionDefinitions [ 71# INVALID-NAME-LLVM-NEXT: ] 72 73# INVALID-NAME-GNU: warning: '[[FILE]]': unable to get the name of SHT_GNU_verdef section with index 1: a section [index 1] has an invalid sh_name (0xff) offset which goes past the end of the section name string table 74# INVALID-NAME-GNU-NEXT: Version definition section '<?>' contains 0 entries: 75# INVALID-NAME-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynstr) 76 77## Check that llvm-readelf reports a warning when we are unable to read the name of 78## the section linked with the SHT_GNU_verdef section (usually ".dynstr"). 79 80# RUN: yaml2obj %s --docnum=2 -DDYNSTRNAME=0xFF -o %t.invalid.name2 81# RUN: llvm-readobj -V %t.invalid.name2 2>&1 | \ 82# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name2 --implicit-check-not=warning: 83# RUN: llvm-readelf -V %t.invalid.name2 2>&1 | \ 84# RUN: FileCheck %s --check-prefix=INVALID-NAME2-GNU -DFILE=%t.invalid.name2 --implicit-check-not=warning: 85 86# INVALID-NAME2-GNU: Version definition section '.gnu.version_d' contains 0 entries: 87# INVALID-NAME2-GNU-NEXT: warning: '[[FILE]]': unable to get the name of SHT_STRTAB section with index 2: a section [index 2] has an invalid sh_name (0xff) offset which goes past the end of the section name string table 88# INVALID-NAME2-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (<?>) 89 90## Check that we report a warning when a SHT_GNU_verdef section contains a version definition 91## that goes past the end of the section. 92 93# RUN: yaml2obj %s --docnum=3 -o %t4 94# RUN: llvm-readobj -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4 95# RUN: llvm-readelf -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4 96 97# DEF-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 goes past the end of the section 98 99--- !ELF 100FileHeader: 101 Class: ELFCLASS64 102 Data: ELFDATA2LSB 103 Type: ET_DYN 104Sections: 105 - Name: .gnu.version_d 106 Type: SHT_GNU_verdef 107 Link: .dynstr 108 Info: 0x1 109 Entries: 110 - Version: 1 111 Flags: 0 112 VersionNdx: 0 113 Hash: 0 114 Names: 115 - FOO 116 ShSize: 1 117DynamicSymbols: 118 - Name: foo 119 120## Check that we report a warning when a SHT_GNU_verdef section contains a version definition 121## that refers to an auxiliary entry that goes past the end of the section. 122 123# RUN: yaml2obj %s --docnum=4 -o %t5 124# RUN: llvm-readobj -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5 125# RUN: llvm-readelf -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5 126 127# AUX-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 refers to an auxiliary entry that goes past the end of the section 128 129--- !ELF 130FileHeader: 131 Class: ELFCLASS64 132 Data: ELFDATA2LSB 133 Type: ET_DYN 134Sections: 135 - Name: .gnu.version_d 136 Type: SHT_GNU_verdef 137 Link: .dynstr 138 Info: 0x1 139 Entries: 140 - Version: 1 141 Flags: 0 142 VersionNdx: 0 143 Hash: 0 144 Names: 145 - FOO 146 ShSize: 21 147DynamicSymbols: 148 - Name: foo 149 150## Check that we can dump a SHT_GNU_verdef section properly even if it contains version names strings 151## that overrun the linked string table. 152 153# RUN: yaml2obj %s --docnum=5 -o %t6 154# RUN: llvm-readobj -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-LLVM --implicit-check-not="warning:" -DFILE=%t6 155# RUN: llvm-readelf -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-GNU --implicit-check-not="warning:" -DFILE=%t6 156 157# PAST-STRTAB-END-LLVM: VersionDefinitions [ 158# PAST-STRTAB-END-LLVM-NEXT: Definition { 159# PAST-STRTAB-END-LLVM-NEXT: Version: 1 160# PAST-STRTAB-END-LLVM-NEXT: Flags [ (0x0) 161# PAST-STRTAB-END-LLVM-NEXT: ] 162# PAST-STRTAB-END-LLVM-NEXT: Index: 0 163# PAST-STRTAB-END-LLVM-NEXT: Hash: 0 164# PAST-STRTAB-END-LLVM-NEXT: Name: <invalid vda_name: 5> 165# PAST-STRTAB-END-LLVM-NEXT: Predecessors: [] 166# PAST-STRTAB-END-LLVM-NEXT: } 167# PAST-STRTAB-END-LLVM-NEXT: ] 168 169# PAST-STRTAB-END-GNU: Version definition section '.gnu.version_d' contains 1 entries: 170# PAST-STRTAB-END-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.strtab) 171# PAST-STRTAB-END-GNU-NEXT: 0x0000: Rev: 1 Flags: none Index: 0 Cnt: 1 Name: <invalid vda_name: 5> 172 173--- !ELF 174FileHeader: 175 Class: ELFCLASS64 176 Data: ELFDATA2LSB 177 Type: ET_DYN 178Sections: 179 - Name: .gnu.version_d 180 Type: SHT_GNU_verdef 181 Link: .strtab 182 Info: 0x1 183 Entries: 184 - Version: 1 185 Flags: 0 186 VersionNdx: 0 187 Hash: 0 188 Names: 189 - FOO 190 - Name: .strtab 191 Type: SHT_STRTAB 192DynamicSymbols: 193 - Name: BAR 194 195## Check we report a warning when a version definition is not correctly aligned in memory. 196 197# RUN: yaml2obj %s --docnum=6 -o %t7 198# RUN: llvm-readobj -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7 199# RUN: llvm-readelf -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7 200 201# MISALIGNED-DEF: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned version definition entry at offset 0x0 202 203--- !ELF 204FileHeader: 205 Class: ELFCLASS64 206 Data: ELFDATA2LSB 207 Type: ET_DYN 208Sections: 209 - Type: Fill 210 Size: 0x1 211 - Name: .gnu.version_d 212 Type: SHT_GNU_verdef 213 Link: .dynstr 214 Info: 0x1 215 Entries: 216 - Version: 1 217 Flags: 0 218 VersionNdx: 0 219 Hash: 0 220 Names: 221 - FOO 222DynamicSymbols: 223 - Name: foo 224 225## Check we report a warning when an auxiliary entry is not correctly aligned in memory. 226 227# RUN: yaml2obj %s --docnum=7 -o %t8 228# RUN: llvm-readobj -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8 229# RUN: llvm-readelf -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8 230 231# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned auxiliary entry at offset 0x13 232 233--- !ELF 234FileHeader: 235 Class: ELFCLASS64 236 Data: ELFDATA2LSB 237 Type: ET_DYN 238Sections: 239 - Name: .gnu.version_d 240 Type: SHT_GNU_verdef 241 Flags: [ SHF_ALLOC ] 242 Link: .dynstr 243 Info: 0x1 244## The byte offset to the auxiliary entry is 0x13, i.e. it is not correctly aligned in memory. 245 Content: "0100000000000100000000001300000000000000" 246DynamicSymbols: 247 - Name: foo 248 Binding: STB_GLOBAL 249 250## Check how we handle a version definition entry with an unsupported version. 251 252# RUN: yaml2obj %s --docnum=8 -o %t9 253# RUN: llvm-readobj -V %t9 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t9 254# RUN: llvm-readelf -V %t9 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t9 255 256# UNSUPPORTED-VERSION: warning: '[[FILE]]': unable to dump SHT_GNU_verdef section with index 1: version 65278 is not yet supported 257 258--- !ELF 259FileHeader: 260 Class: ELFCLASS64 261 Data: ELFDATA2LSB 262 Type: ET_DYN 263Sections: 264 - Name: .gnu.version_d 265 Type: SHT_GNU_verdef 266 Link: .dynstr 267 Info: 0x1 268 Entries: 269 - Version: 0xfefe 270 Flags: 0 271 VersionNdx: 0 272 Hash: 0 273 Names: [] 274DynamicSymbols: 275 - Name: foo 276 277## Check we report a warning when trying to print version symbols, but SHT_GNU_verdef 278## is invalid due to any reason. 279 280# RUN: yaml2obj %s --docnum=9 -o %t10 281# RUN: llvm-readobj -V %t10 2>&1 | FileCheck %s --check-prefix=INVALID-VERDEF-LLVM -DFILE=%t10 282# RUN: llvm-readelf -V %t10 2>&1 | FileCheck %s --check-prefix=INVALID-VERDEF-GNU -DFILE=%t10 283 284# INVALID-VERDEF-LLVM: VersionSymbols [ 285# INVALID-VERDEF-LLVM-NEXT: Symbol { 286# INVALID-VERDEF-LLVM-NEXT: Version: 0 287# INVALID-VERDEF-LLVM-NEXT: Name: 288# INVALID-VERDEF-LLVM-NEXT: } 289# INVALID-VERDEF-LLVM-NEXT: Symbol { 290# INVALID-VERDEF-LLVM-NEXT: Version: 2 291# INVALID-VERDEF-LLVM-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 2: version definition 1 goes past the end of the section 292# INVALID-VERDEF-LLVM-NEXT: Name: foo@<corrupt> 293 294# INVALID-VERDEF-GNU: Version symbols section '.gnu.version' contains 2 entries: 295# INVALID-VERDEF-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym) 296# INVALID-VERDEF-GNU-NEXT: warning: '[[FILE]]': unable to get a version for entry 1 of SHT_GNU_versym section with index 1: invalid SHT_GNU_verdef section with index 2: version definition 1 goes past the end of the section 297# INVALID-VERDEF-GNU-NEXT: 000: 0 (*local*) 2 (<corrupt>) 298 299--- !ELF 300FileHeader: 301 Class: ELFCLASS64 302 Data: ELFDATA2LSB 303 Type: ET_DYN 304Sections: 305 - Name: .gnu.version 306 Type: SHT_GNU_versym 307 Flags: [ SHF_ALLOC ] 308 Link: .dynsym 309 AddressAlign: 0x0000000000000002 310 EntSize: 0x0000000000000002 311 Entries: [ 0, 2 ] 312 - Name: .gnu.version_d 313 Type: SHT_GNU_verdef 314 Flags: [ SHF_ALLOC ] 315 Link: .dynstr 316 AddressAlign: 0x4 317 Info: 0x1 318 Entries: [] 319DynamicSymbols: 320 - Name: foo 321 Binding: STB_GLOBAL 322