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1## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verneed sections.2 3## In the first case we have a SHT_GNU_versym section that refers to4## a version listed in a SHT_GNU_verneed section. That version has an5## empty name, making it invalid.6 7# RUN: yaml2obj --docnum=1 %s -o %t18# RUN: llvm-readelf -V %t1 | FileCheck %s --check-prefix=GNU-VERNEED-NAME9# RUN: llvm-readobj -V %t1 | FileCheck %s --check-prefix=LLVM-VERNEED-NAME10 11# GNU-VERNEED-NAME: Version symbols section '.gnu.version' contains 2 entries:12# GNU-VERNEED-NAME-NEXT: Addr: 0000000000200210 Offset: 0x000040 Link: 3 (.dynsym)13# GNU-VERNEED-NAME-NEXT: 000: 0 (*local*) 2 ()14 15# GNU-VERNEED-NAME: Version needs section '.gnu.version_r' contains 1 entries:16# GNU-VERNEED-NAME-NEXT: Addr: 0000000000200214 Offset: 0x000044 Link: 4 (.dynstr)17# GNU-VERNEED-NAME-NEXT: 0x0000: Version: 1 File: somefile Cnt: 118# GNU-VERNEED-NAME-NEXT: 0x0010: Name: Flags: none Version: 219 20# LLVM-VERNEED-NAME: VersionSymbols [21# LLVM-VERNEED-NAME: Symbol {22# LLVM-VERNEED-NAME-NEXT: Version: 023# LLVM-VERNEED-NAME-NEXT: Name:24# LLVM-VERNEED-NAME-NEXT: }25# LLVM-VERNEED-NAME-NEXT: Symbol {26# LLVM-VERNEED-NAME-NEXT: Version: 227# LLVM-VERNEED-NAME-NEXT: Name: foo28# LLVM-VERNEED-NAME-NEXT: }29# LLVM-VERNEED-NAME-NEXT: ]30 31# LLVM-VERNEED-NAME: VersionRequirements [32# LLVM-VERNEED-NAME-NEXT: Dependency {33# LLVM-VERNEED-NAME-NEXT: Version: 134# LLVM-VERNEED-NAME-NEXT: Count: 135# LLVM-VERNEED-NAME-NEXT: FileName: somefile36# LLVM-VERNEED-NAME-NEXT: Entries [37# LLVM-VERNEED-NAME-NEXT: Entry {38# LLVM-VERNEED-NAME-NEXT: Hash: 039# LLVM-VERNEED-NAME-NEXT: Flags [ (0x0)40# LLVM-VERNEED-NAME-NEXT: ]41# LLVM-VERNEED-NAME-NEXT: Index: 242# LLVM-VERNEED-NAME-NEXT: Name: {{$}}43# LLVM-VERNEED-NAME-NEXT: }44# LLVM-VERNEED-NAME-NEXT: ]45# LLVM-VERNEED-NAME-NEXT: }46# LLVM-VERNEED-NAME-NEXT: ]47 48--- !ELF49FileHeader:50 Class: ELFCLASS6451 Data: ELFDATA2LSB52 Type: ET_EXEC53Sections:54 - Name: .gnu.version55 Type: SHT_GNU_versym56 Flags: [ SHF_ALLOC ]57 Address: 0x20021058 Entries: [ 0, 2 ]59 - Name: .gnu.version_r60 Type: SHT_GNU_verneed61 Flags: [ SHF_ALLOC ]62 AddressAlign: 463 Dependencies:64 - Version: 165 File: somefile66 Entries:67 - Name: '' ## invalid name68 Hash: 069 Flags: 070 Other: 271DynamicSymbols:72 - Name: foo73 Binding: STB_GLOBAL74...75 76## In this case SHT_GNU_verneed is not linked to a dynamic string table. We check we handle77## this situation properly.78 79# RUN: yaml2obj --docnum=2 %s -o %t280# RUN: llvm-readelf -V %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=GNU-NOLINK81# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=LLVM-NOLINK82 83# GNU-NOLINK: Version symbols section '.gnu.version' contains 2 entries:84# GNU-NOLINK-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)85# GNU-NOLINK-NEXT: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verneed section with index 2: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL86# GNU-NOLINK-NEXT: 000: 0 (*local*) 2 (<corrupt>)87# GNU-NOLINK: Version needs section '.gnu.version_r' contains 1 entries:88# GNU-NOLINK-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 0 ()89# GNU-NOLINK-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 9> Cnt: 190# GNU-NOLINK-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 291 92# LLVM-NOLINK: VersionSymbols [93# LLVM-NOLINK: Symbol {94# LLVM-NOLINK-NEXT: Version: 095# LLVM-NOLINK-NEXT: Name:96# LLVM-NOLINK-NEXT: }97# LLVM-NOLINK-NEXT: Symbol {98# LLVM-NOLINK-NEXT: Version: 299# LLVM-NOLINK-NEXT: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verneed section with index 2: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL100# LLVM-NOLINK-NEXT: Name: foo@<corrupt>101# LLVM-NOLINK-NEXT: }102# LLVM-NOLINK-NEXT: ]103 104# LLVM-NOLINK: VersionRequirements [105# LLVM-NOLINK-NEXT: Dependency {106# LLVM-NOLINK-NEXT: Version: 1107# LLVM-NOLINK-NEXT: Count: 1108# LLVM-NOLINK-NEXT: FileName: <corrupt vn_file: 9>109# LLVM-NOLINK-NEXT: Entries [110# LLVM-NOLINK-NEXT: Entry {111# LLVM-NOLINK-NEXT: Hash: 0112# LLVM-NOLINK-NEXT: Flags [ (0x0)113# LLVM-NOLINK-NEXT: ]114# LLVM-NOLINK-NEXT: Index: 2115# LLVM-NOLINK-NEXT: Name: <corrupt>116# LLVM-NOLINK-NEXT: }117# LLVM-NOLINK-NEXT: ]118# LLVM-NOLINK-NEXT: }119# LLVM-NOLINK-NEXT: ]120 121--- !ELF122FileHeader:123 Class: ELFCLASS64124 Data: ELFDATA2LSB125 Type: ET_EXEC126Sections:127 - Name: .gnu.version128 Type: SHT_GNU_versym129 Flags: [ SHF_ALLOC ]130 Entries: [ 0, 2 ]131 - Name: .gnu.version_r132 Type: SHT_GNU_verneed133 Flags: [ SHF_ALLOC ]134 Link: 0135 AddressAlign: 4136 Dependencies:137 - Version: 1138 File: somefile139 Entries:140 - Name: 'bar'141 Hash: 0142 Flags: 0143 Other: 2144DynamicSymbols:145 - Name: foo146 Binding: STB_GLOBAL147 148## We can't parse misaligned auxiliary version records.149 150# RUN: yaml2obj --docnum=3 %s -o %t3151# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=BROKEN-AUX-GNU152# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=BROKEN-AUX-LLVM153 154# BROKEN-AUX-GNU: Version symbols section '.gnu.version' contains 1 entries:155# BROKEN-AUX-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)156# BROKEN-AUX-GNU-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 2: found a misaligned auxiliary entry at offset 0x11157# BROKEN-AUX-GNU-NEXT: 000: 2 (<corrupt>)158 159# BROKEN-AUX-LLVM: VersionSymbols [160# BROKEN-AUX-LLVM-NEXT: Symbol {161# BROKEN-AUX-LLVM-NEXT: Version: 2162# BROKEN-AUX-LLVM-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 2: found a misaligned auxiliary entry at offset 0x11163# BROKEN-AUX-LLVM-NEXT: Name: @<corrupt>164# BROKEN-AUX-LLVM-NEXT: }165# BROKEN-AUX-LLVM-NEXT: ]166 167--- !ELF168FileHeader:169 Class: ELFCLASS64170 Data: ELFDATA2LSB171 Type: ET_EXEC172Sections:173 - Name: .gnu.version174 Type: SHT_GNU_versym175 Flags: [ SHF_ALLOC ]176 Entries: [ 2 ]177 - Name: .gnu.version_r178 Type: SHT_GNU_verneed179 Flags: [ SHF_ALLOC ]180 Info: 1181 AddressAlign: 4182## The byte offset to the auxiliary entry is 0x11, i.e. it is not correctly aligned in memory.183 Content: "0100010001000000110000000000000000000000"184DynamicSymbols: []185 186## Here we check that we can properly dump the case when a dependency file name187## and/or a dependency name string offset is equal to the string table size.188##189## We set the version dependency vn_file field to the offset of string 'foo' in190## the .dynstr, which is 1. We create a custom string table .mystrtab of size 1191## and link it with the .gnu.version_r section. For the vna_name we use the same trick.192 193# RUN: yaml2obj --docnum=4 %s -o %t4194# RUN: llvm-readobj --sections --section-data -V %t4 | FileCheck %s --check-prefix=LLVM-OFFSET-EQ195# RUN: llvm-readelf --sections -V %t4 | FileCheck %s --check-prefix=GNU-OFFSET-EQ196 197# LLVM-OFFSET-EQ: Name: .mystrtab198# LLVM-OFFSET-EQ: Size:199# LLVM-OFFSET-EQ-SAME: 1200 201# LLVM-OFFSET-EQ: Name: .dynstr202# LLVM-OFFSET-EQ: SectionData (203# LLVM-OFFSET-EQ-NEXT: 0000: 00666F6F 00 |.foo.|204# LLVM-OFFSET-EQ-NEXT: )205 206# LLVM-OFFSET-EQ: VersionRequirements [207# LLVM-OFFSET-EQ-NEXT: Dependency {208# LLVM-OFFSET-EQ-NEXT: Version: 1209# LLVM-OFFSET-EQ-NEXT: Count: 1210# LLVM-OFFSET-EQ-NEXT: FileName: <corrupt vn_file: 1>211# LLVM-OFFSET-EQ-NEXT: Entries [212# LLVM-OFFSET-EQ-NEXT: Entry {213# LLVM-OFFSET-EQ-NEXT: Hash: 0214# LLVM-OFFSET-EQ-NEXT: Flags [ (0x0)215# LLVM-OFFSET-EQ-NEXT: ]216# LLVM-OFFSET-EQ-NEXT: Index: 0217# LLVM-OFFSET-EQ-NEXT: Name: <corrupt>218# LLVM-OFFSET-EQ-NEXT: }219# LLVM-OFFSET-EQ-NEXT: ]220# LLVM-OFFSET-EQ-NEXT: }221# LLVM-OFFSET-EQ-NEXT: ]222 223# GNU-OFFSET-EQ: Version needs section '.gnu.version_r' contains 1 entries:224# GNU-OFFSET-EQ-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 1 (.mystrtab)225# GNU-OFFSET-EQ-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1226# GNU-OFFSET-EQ-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0227 228--- !ELF229FileHeader:230 Class: ELFCLASS64231 Data: ELFDATA2LSB232 Type: ET_EXEC233Sections:234 - Name: .mystrtab235 Type: SHT_STRTAB236 Content: "00"237 - Name: .gnu.version_r238 Type: SHT_GNU_verneed239 Flags: [ SHF_ALLOC ]240 Link: .mystrtab241 AddressAlign: 4242 Dependencies:243 - Version: 1244 File: foo245 Entries:246 - Name: 'foo'247 Hash: 0248 Flags: 0249 Other: 0250DynamicSymbols:251 - Name: foo252 253## Here we check that we can properly dump the case when a dependency file name254## and/or a dependency name string offset is greater than the string table size.255##256# RUN: yaml2obj --docnum=5 %s -o %t5257# RUN: llvm-readobj --sections -V %t5 | FileCheck %s --check-prefix=LLVM-OFFSET-GR258# RUN: llvm-readelf --sections -V %t5 | FileCheck %s --check-prefix=GNU-OFFSET-GR259 260# LLVM-OFFSET-GR: VersionRequirements [261# LLVM-OFFSET-GR-NEXT: Dependency {262# LLVM-OFFSET-GR-NEXT: Version: 1263# LLVM-OFFSET-GR-NEXT: Count: 1264# LLVM-OFFSET-GR-NEXT: FileName: <corrupt vn_file: 1>265# LLVM-OFFSET-GR-NEXT: Entries [266# LLVM-OFFSET-GR-NEXT: Entry {267# LLVM-OFFSET-GR-NEXT: Hash: 0268# LLVM-OFFSET-GR-NEXT: Flags [ (0x0)269# LLVM-OFFSET-GR-NEXT: ]270# LLVM-OFFSET-GR-NEXT: Index: 0271# LLVM-OFFSET-GR-NEXT: Name: <corrupt>272# LLVM-OFFSET-GR-NEXT: }273# LLVM-OFFSET-GR-NEXT: ]274# LLVM-OFFSET-GR-NEXT: }275# LLVM-OFFSET-GR-NEXT: ]276 277# GNU-OFFSET-GR: Version needs section '.gnu.version_r' contains 1 entries:278# GNU-OFFSET-GR-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 1 (.mystrtab)279# GNU-OFFSET-GR-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1280# GNU-OFFSET-GR-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0281 282--- !ELF283FileHeader:284 Class: ELFCLASS64285 Data: ELFDATA2LSB286 Type: ET_EXEC287Sections:288 - Name: .mystrtab289 Type: SHT_STRTAB290 Content: ""291 - Name: .gnu.version_r292 Type: SHT_GNU_verneed293 Flags: [ SHF_ALLOC ]294 Link: .mystrtab295 AddressAlign: 4296 Dependencies:297 - Version: 1298 File: foo299 Entries:300 - Name: 'foo'301 Hash: 0302 Flags: 0303 Other: 0304DynamicSymbols:305 - Name: foo306 307## Check that we report a warning when sh_link references a non-existent section.308 309# RUN: yaml2obj --docnum=6 %s -DLINK=0xFF -o %t6310# RUN: llvm-readobj --sections -V %t6 2>&1 | FileCheck %s -DFILE=%t6 --implicit-check-not="warning:" --check-prefix=INVALID-LINK-LLVM311# RUN: llvm-readelf --sections -V %t6 2>&1 | FileCheck %s -DFILE=%t6 --implicit-check-not="warning:" --check-prefix=INVALID-LINK-GNU312 313# INVALID-LINK-LLVM: VersionRequirements [314# INVALID-LINK-LLVM-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_verneed section with index 1: invalid section index: 255315# INVALID-LINK-LLVM-NEXT: Dependency {316# INVALID-LINK-LLVM-NEXT: Version: 1317# INVALID-LINK-LLVM-NEXT: Count: 1318# INVALID-LINK-LLVM-NEXT: FileName: <corrupt vn_file: 1>319# INVALID-LINK-LLVM-NEXT: Entries [320# INVALID-LINK-LLVM-NEXT: Entry {321# INVALID-LINK-LLVM-NEXT: Hash: 0322# INVALID-LINK-LLVM-NEXT: Flags [ (0x0)323# INVALID-LINK-LLVM-NEXT: ]324# INVALID-LINK-LLVM-NEXT: Index: 0325# INVALID-LINK-LLVM-NEXT: Name: <corrupt>326# INVALID-LINK-LLVM-NEXT: }327# INVALID-LINK-LLVM-NEXT: ]328# INVALID-LINK-LLVM-NEXT: }329# INVALID-LINK-LLVM-NEXT: ]330 331# INVALID-LINK-GNU: Version needs section '.gnu.version_r' contains 1 entries:332# INVALID-LINK-GNU-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_verneed section with index 1: invalid section index: 255333# INVALID-LINK-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 255 (<corrupt>)334# INVALID-LINK-GNU-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1335# INVALID-LINK-GNU-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0336 337--- !ELF338FileHeader:339 Class: ELFCLASS64340 Data: ELFDATA2LSB341 Type: ET_EXEC342Sections:343 - Name: .gnu.version_r344 Type: SHT_GNU_verneed345 Flags: [ SHF_ALLOC ]346 Link: [[LINK=.dynstr]]347 ShName: [[SHNAME=<none>]]348 Dependencies:349 - Version: 1350 File: foo351 Entries:352 - Name: 'foo'353 Hash: 0354 Flags: 0355 Other: 0356 - Name: .dynstr357 Type: SHT_STRTAB358 ShName: [[DYNSTRNAME=<none>]]359DynamicSymbols:360 - Name: foo361 362## Check that llvm-readelf reports a warning when the name of the SHT_GNU_verneed section can't be read.363 364# RUN: yaml2obj --docnum=6 %s -DSHNAME=0xFFFFFFFF -o %t.invalid.name365# RUN: llvm-readobj -V %t.invalid.name 2>&1 | \366# RUN: FileCheck %s -DFILE=%t.invalid.name --check-prefix=INVALID-NAME-LLVM --implicit-check-not=warning:367# RUN: llvm-readelf -V %t.invalid.name 2>&1 | \368# RUN: FileCheck %s -DFILE=%t.invalid.name --check-prefix=INVALID-NAME-GNU --implicit-check-not=warning:369 370# INVALID-NAME-LLVM: VersionRequirements [371# INVALID-NAME-LLVM-NEXT: Dependency {372# INVALID-NAME-LLVM-NEXT: Version: 1373# INVALID-NAME-LLVM-NEXT: Count: 1374# INVALID-NAME-LLVM-NEXT: FileName: foo375# INVALID-NAME-LLVM-NEXT: Entries [376# INVALID-NAME-LLVM-NEXT: Entry {377# INVALID-NAME-LLVM-NEXT: Hash: 0378# INVALID-NAME-LLVM-NEXT: Flags [ (0x0)379# INVALID-NAME-LLVM-NEXT: ]380# INVALID-NAME-LLVM-NEXT: Index: 0381# INVALID-NAME-LLVM-NEXT: Name: foo382# INVALID-NAME-LLVM-NEXT: }383# INVALID-NAME-LLVM-NEXT: ]384# INVALID-NAME-LLVM-NEXT: }385# INVALID-NAME-LLVM-NEXT: ]386 387# INVALID-NAME-GNU: warning: '[[FILE]]': unable to get the name of SHT_GNU_verneed section with index 1: a section [index 1] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table388# INVALID-NAME-GNU-NEXT: Version needs section '<?>' contains 1 entries:389# INVALID-NAME-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynstr)390# INVALID-NAME-GNU-NEXT: 0x0000: Version: 1 File: foo Cnt: 1391# INVALID-NAME-GNU-NEXT: 0x0010: Name: foo Flags: none Version: 0392 393## Check that llvm-readelf reports a warning when we are unable to read the name of394## the section linked with the SHT_GNU_verneed section (usually ".dynstr").395 396# RUN: yaml2obj --docnum=6 %s -DDYNSTRNAME=0xFFFFFFFF -o %t.invalid.name2397# RUN: llvm-readobj -V %t.invalid.name2 2>&1 | \398# RUN: FileCheck %s -DFILE=%t.invalid.name2 --check-prefix=INVALID-NAME-LLVM --implicit-check-not=warning:399# RUN: llvm-readelf -V %t.invalid.name2 2>&1 | \400# RUN: FileCheck %s -DFILE=%t.invalid.name2 --check-prefix=INVALID-NAME2-GNU --implicit-check-not=warning:401 402# INVALID-NAME2-GNU: Version needs section '.gnu.version_r' contains 1 entries:403# 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 (0xffffffff) offset which goes past the end of the section name string table404# INVALID-NAME2-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (<?>)405# INVALID-NAME2-GNU-NEXT: 0x0000: Version: 1 File: foo Cnt: 1406# INVALID-NAME2-GNU-NEXT: 0x0010: Name: foo Flags: none Version: 0407 408## Check that we report a warning when we can't read the content of the SHT_GNU_verneed section.409 410# RUN: yaml2obj --docnum=7 %s -o %t7411# RUN: llvm-readobj --sections -V %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DATA412# RUN: llvm-readelf --sections -V %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DATA413 414# INVALID-DATA: warning: '[[FILE]]': cannot read content of SHT_GNU_verneed section with index 1: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x0) that is greater than the file size (0x228)415 416--- !ELF417FileHeader:418 Class: ELFCLASS64419 Data: ELFDATA2LSB420 Type: ET_EXEC421Sections:422 - Name: .gnu.version_r423 Type: SHT_GNU_verneed424 Flags: [ SHF_ALLOC ]425 ShOffset: 0xFFFFFFFF426## Triggers creation of the .dynstr.427DynamicSymbols:428 - Name: foo429 430## Check that we report a warning when a SHT_GNU_verneed section contains a version dependency431## that goes past the end of the section.432 433# RUN: yaml2obj --docnum=8 %s -o %t8434# RUN: llvm-readobj --sections -V %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=DEP-PAST-END435# RUN: llvm-readelf --sections -V %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=DEP-PAST-END436 437# DEP-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: version dependency 1 goes past the end of the section438 439--- !ELF440FileHeader:441 Class: ELFCLASS64442 Data: ELFDATA2LSB443 Type: ET_EXEC444Sections:445 - Name: .gnu.version_r446 Type: SHT_GNU_verneed447 Flags: [ SHF_ALLOC ]448 ShSize: 0x1449 Dependencies:450 - Version: 1451 File: foo452 Entries:453 - Name: 'foo'454 Hash: 0455 Flags: 0456 Other: 0457DynamicSymbols:458 - Name: foo459 460## Check we report a warning when a version dependency is not correctly aligned in memory.461 462# RUN: yaml2obj --docnum=9 %s -o %t9463# RUN: llvm-readobj --sections -V %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=MISALIGNED-DEP464# RUN: llvm-readelf --sections -V %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=MISALIGNED-DEP465 466# MISALIGNED-DEP: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: found a misaligned version dependency entry at offset 0x0467 468--- !ELF469FileHeader:470 Class: ELFCLASS64471 Data: ELFDATA2LSB472 Type: ET_EXEC473Sections:474 - Type: Fill475 Size: 0x1476 - Name: .gnu.version_r477 Type: SHT_GNU_verneed478 Flags: [ SHF_ALLOC ]479 Link: .dynstr480 Dependencies:481 - Version: 1482 File: foo483 Entries:484 - Name: 'foo'485 Hash: 0486 Flags: 0487 Other: 0488DynamicSymbols:489 - Name: foo490 491## Check that we report a warning when a SHT_GNU_verneed section contains a dependency definition492## that refers to an auxiliary entry that goes past the end of the section.493 494# RUN: yaml2obj --docnum=10 %s -o %t10495# RUN: llvm-readobj --sections -V %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=AUX-PAST-END496# RUN: llvm-readelf --sections -V %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=AUX-PAST-END497 498# AUX-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: version dependency 1 refers to an auxiliary entry that goes past the end of the section499 500--- !ELF501FileHeader:502 Class: ELFCLASS64503 Data: ELFDATA2LSB504 Type: ET_EXEC505Sections:506 - Name: .gnu.version_r507 Type: SHT_GNU_verneed508 Flags: [ SHF_ALLOC ]509 ShSize: 21510 Dependencies:511 - Version: 1512 File: foo513 Entries:514 - Name: 'foo'515 Hash: 0516 Flags: 0517 Other: 0518DynamicSymbols:519 - Name: foo520 521## Check we report a warning when an auxiliary entry is not correctly aligned in memory.522 523# RUN: yaml2obj %s --docnum=11 -o %t11524# RUN: llvm-readobj -V %t11 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t11525# RUN: llvm-readelf -V %t11 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t11526 527# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: found a misaligned auxiliary entry at offset 0x11528 529--- !ELF530FileHeader:531 Class: ELFCLASS64532 Data: ELFDATA2LSB533 Type: ET_EXEC534Sections:535 - Name: .gnu.version_r536 Type: SHT_GNU_verneed537 Flags: [ SHF_ALLOC ]538 Info: 1539## The byte offset to the auxiliary entry is 0x11, i.e. it is not correctly aligned in memory.540 Content: "0100010001000000110000000000000000000000"541DynamicSymbols:542 - Name: foo543 544## Check how we handle the case when a dependency definition entry has an unsupported version.545 546# RUN: yaml2obj %s --docnum=12 -o %t12547# RUN: llvm-readobj -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12548# RUN: llvm-readelf -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12549 550# UNSUPPORTED-VERSION: warning: '[[FILE]]': unable to dump SHT_GNU_verneed section with index 1: version 65278 is not yet supported551 552--- !ELF553FileHeader:554 Class: ELFCLASS64555 Data: ELFDATA2LSB556 Type: ET_EXEC557Sections:558 - Name: .gnu.version_r559 Type: SHT_GNU_verneed560 Flags: [ SHF_ALLOC ]561 Dependencies:562 - Version: 0xfefe563 File: foo564 Entries:565 - Name: 'foo'566 Hash: 0567 Flags: 0568 Other: 0569DynamicSymbols:570 - Name: foo571 572## In this case SHT_GNU_verneed is linked to a custom dynamic string table, which is not573## called ".dynstr". Check we handle this case properly.574 575# RUN: yaml2obj --docnum=13 %s -o %t13576# RUN: llvm-readelf -V %t13 2>&1 | FileCheck %s -DFILE=%t13 --check-prefix=GNU-CUSTOM-DYNSTR577# RUN: llvm-readobj -V %t13 2>&1 | FileCheck %s -DFILE=%t13 --check-prefix=LLVM-CUSTOM-DYNSTR578 579# GNU-CUSTOM-DYNSTR: Version symbols section '.gnu.version' contains 2 entries:580# GNU-CUSTOM-DYNSTR-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 4 (.dynsym)581# GNU-CUSTOM-DYNSTR-NEXT: 000: 0 (*local*) 2 (bcdefghij)582# GNU-CUSTOM-DYNSTR: Version needs section '.gnu.version_r' contains 1 entries:583# GNU-CUSTOM-DYNSTR-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 3 (.custom.dynstr)584# GNU-CUSTOM-DYNSTR-NEXT: 0x0000: Version: 1 File: j Cnt: 1585# GNU-CUSTOM-DYNSTR-NEXT: 0x0010: Name: bcdefghij Flags: none Version: 2586 587# LLVM-CUSTOM-DYNSTR: VersionSymbols [588# LLVM-CUSTOM-DYNSTR: Symbol {589# LLVM-CUSTOM-DYNSTR: Version: 2590# LLVM-CUSTOM-DYNSTR-NEXT: Name: foo@bcdefghij591 592# LLVM-CUSTOM-DYNSTR: VersionRequirements [593# LLVM-CUSTOM-DYNSTR: Dependency {594# LLVM-CUSTOM-DYNSTR: Entries [595# LLVM-CUSTOM-DYNSTR: Entry {596# LLVM-CUSTOM-DYNSTR: Index: 2597# LLVM-CUSTOM-DYNSTR-NEXT: Name: bcdefghij598 599--- !ELF600FileHeader:601 Class: ELFCLASS64602 Data: ELFDATA2LSB603 Type: ET_EXEC604Sections:605 - Name: .gnu.version606 Type: SHT_GNU_versym607 Flags: [ SHF_ALLOC ]608 Entries: [ 0, 2 ]609 - Name: .gnu.version_r610 Type: SHT_GNU_verneed611 Flags: [ SHF_ALLOC ]612 Link: .custom.dynstr613 AddressAlign: 4614 Dependencies:615 - Version: 1616 File: zed617 Entries:618 - Name: 'bar'619 Hash: 0620 Flags: 0621 Other: 2622 - Name: .custom.dynstr623 Type: SHT_STRTAB624 Content: "6162636465666768696a00" ## 'a','b','c','d','e','f','g','h','i','j',NIL625DynamicSymbols:626 - Name: foo627 Binding: STB_GLOBAL628