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llvm-for-llvmta/test/tools/llvm-readobj/ELF/verneed-invalid.test

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2022-04-25 10:02:23 +02:00
## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verneed sections.
## In the first case we have a SHT_GNU_versym section that refers to
## a version listed in a SHT_GNU_verneed section. That version has an
## empty name, making it invalid.
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readelf -V %t1 | FileCheck %s --check-prefix=GNU-VERNEED-NAME
# RUN: llvm-readobj -V %t1 | FileCheck %s --check-prefix=LLVM-VERNEED-NAME
# GNU-VERNEED-NAME: Version symbols section '.gnu.version' contains 2 entries:
# GNU-VERNEED-NAME-NEXT: Addr: 0000000000200210 Offset: 0x000040 Link: 3 (.dynsym)
# GNU-VERNEED-NAME-NEXT: 000: 0 (*local*) 2 ()
# GNU-VERNEED-NAME: Version needs section '.gnu.version_r' contains 1 entries:
# GNU-VERNEED-NAME-NEXT: Addr: 0000000000200214 Offset: 0x000044 Link: 4 (.dynstr)
# GNU-VERNEED-NAME-NEXT: 0x0000: Version: 1 File: somefile Cnt: 1
# GNU-VERNEED-NAME-NEXT: 0x0010: Name: Flags: none Version: 2
# LLVM-VERNEED-NAME: VersionSymbols [
# LLVM-VERNEED-NAME: Symbol {
# LLVM-VERNEED-NAME-NEXT: Version: 0
# LLVM-VERNEED-NAME-NEXT: Name:
# LLVM-VERNEED-NAME-NEXT: }
# LLVM-VERNEED-NAME-NEXT: Symbol {
# LLVM-VERNEED-NAME-NEXT: Version: 2
# LLVM-VERNEED-NAME-NEXT: Name: foo
# LLVM-VERNEED-NAME-NEXT: }
# LLVM-VERNEED-NAME-NEXT: ]
# LLVM-VERNEED-NAME: VersionRequirements [
# LLVM-VERNEED-NAME-NEXT: Dependency {
# LLVM-VERNEED-NAME-NEXT: Version: 1
# LLVM-VERNEED-NAME-NEXT: Count: 1
# LLVM-VERNEED-NAME-NEXT: FileName: somefile
# LLVM-VERNEED-NAME-NEXT: Entries [
# LLVM-VERNEED-NAME-NEXT: Entry {
# LLVM-VERNEED-NAME-NEXT: Hash: 0
# LLVM-VERNEED-NAME-NEXT: Flags [ (0x0)
# LLVM-VERNEED-NAME-NEXT: ]
# LLVM-VERNEED-NAME-NEXT: Index: 2
# LLVM-VERNEED-NAME-NEXT: Name: {{$}}
# LLVM-VERNEED-NAME-NEXT: }
# LLVM-VERNEED-NAME-NEXT: ]
# LLVM-VERNEED-NAME-NEXT: }
# LLVM-VERNEED-NAME-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
Address: 0x200210
Entries: [ 0, 2 ]
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
AddressAlign: 4
Dependencies:
- Version: 1
File: somefile
Entries:
- Name: '' ## invalid name
Hash: 0
Flags: 0
Other: 2
DynamicSymbols:
- Name: foo
Binding: STB_GLOBAL
...
## In this case SHT_GNU_verneed is not linked to a dynamic string table. We check we handle
## this situation properly.
# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: llvm-readelf -V %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=GNU-NOLINK
# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=LLVM-NOLINK
# GNU-NOLINK: Version symbols section '.gnu.version' contains 2 entries:
# GNU-NOLINK-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)
# 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_NULL
# GNU-NOLINK-NEXT: 000: 0 (*local*) 2 (<corrupt>)
# GNU-NOLINK: Version needs section '.gnu.version_r' contains 1 entries:
# GNU-NOLINK-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 0 ()
# GNU-NOLINK-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 9> Cnt: 1
# GNU-NOLINK-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 2
# LLVM-NOLINK: VersionSymbols [
# LLVM-NOLINK: Symbol {
# LLVM-NOLINK-NEXT: Version: 0
# LLVM-NOLINK-NEXT: Name:
# LLVM-NOLINK-NEXT: }
# LLVM-NOLINK-NEXT: Symbol {
# LLVM-NOLINK-NEXT: Version: 2
# 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_NULL
# LLVM-NOLINK-NEXT: Name: foo@<corrupt>
# LLVM-NOLINK-NEXT: }
# LLVM-NOLINK-NEXT: ]
# LLVM-NOLINK: VersionRequirements [
# LLVM-NOLINK-NEXT: Dependency {
# LLVM-NOLINK-NEXT: Version: 1
# LLVM-NOLINK-NEXT: Count: 1
# LLVM-NOLINK-NEXT: FileName: <corrupt vn_file: 9>
# LLVM-NOLINK-NEXT: Entries [
# LLVM-NOLINK-NEXT: Entry {
# LLVM-NOLINK-NEXT: Hash: 0
# LLVM-NOLINK-NEXT: Flags [ (0x0)
# LLVM-NOLINK-NEXT: ]
# LLVM-NOLINK-NEXT: Index: 2
# LLVM-NOLINK-NEXT: Name: <corrupt>
# LLVM-NOLINK-NEXT: }
# LLVM-NOLINK-NEXT: ]
# LLVM-NOLINK-NEXT: }
# LLVM-NOLINK-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
Entries: [ 0, 2 ]
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: 0
AddressAlign: 4
Dependencies:
- Version: 1
File: somefile
Entries:
- Name: 'bar'
Hash: 0
Flags: 0
Other: 2
DynamicSymbols:
- Name: foo
Binding: STB_GLOBAL
## We can't parse misaligned auxiliary version records.
# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=BROKEN-AUX-GNU
# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=BROKEN-AUX-LLVM
# BROKEN-AUX-GNU: Version symbols section '.gnu.version' contains 1 entries:
# BROKEN-AUX-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)
# BROKEN-AUX-GNU-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 2: found a misaligned auxiliary entry at offset 0x11
# BROKEN-AUX-GNU-NEXT: 000: 2 (<corrupt>)
# BROKEN-AUX-LLVM: VersionSymbols [
# BROKEN-AUX-LLVM-NEXT: Symbol {
# BROKEN-AUX-LLVM-NEXT: Version: 2
# BROKEN-AUX-LLVM-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 2: found a misaligned auxiliary entry at offset 0x11
# BROKEN-AUX-LLVM-NEXT: Name: @<corrupt>
# BROKEN-AUX-LLVM-NEXT: }
# BROKEN-AUX-LLVM-NEXT: ]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
Entries: [ 2 ]
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Info: 1
AddressAlign: 4
## The byte offset to the auxiliary entry is 0x11, i.e. it is not correctly aligned in memory.
Content: "0100010001000000110000000000000000000000"
DynamicSymbols: []
## Here we check that we can properly dump the case when a dependency file name
## and/or a dependency name string offset is equal to the string table size.
##
## We set the version dependency vn_file field to the offset of string 'foo' in
## the .dynstr, which is 1. We create a custom string table .mystrtab of size 1
## and link it with the .gnu.version_r section. For the vna_name we use the same trick.
# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: llvm-readobj --sections --section-data -V %t4 | FileCheck %s --check-prefix=LLVM-OFFSET-EQ
# RUN: llvm-readelf --sections -V %t4 | FileCheck %s --check-prefix=GNU-OFFSET-EQ
# LLVM-OFFSET-EQ: Name: .mystrtab
# LLVM-OFFSET-EQ: Size:
# LLVM-OFFSET-EQ-SAME: 1
# LLVM-OFFSET-EQ: Name: .dynstr
# LLVM-OFFSET-EQ: SectionData (
# LLVM-OFFSET-EQ-NEXT: 0000: 00666F6F 00 |.foo.|
# LLVM-OFFSET-EQ-NEXT: )
# LLVM-OFFSET-EQ: VersionRequirements [
# LLVM-OFFSET-EQ-NEXT: Dependency {
# LLVM-OFFSET-EQ-NEXT: Version: 1
# LLVM-OFFSET-EQ-NEXT: Count: 1
# LLVM-OFFSET-EQ-NEXT: FileName: <corrupt vn_file: 1>
# LLVM-OFFSET-EQ-NEXT: Entries [
# LLVM-OFFSET-EQ-NEXT: Entry {
# LLVM-OFFSET-EQ-NEXT: Hash: 0
# LLVM-OFFSET-EQ-NEXT: Flags [ (0x0)
# LLVM-OFFSET-EQ-NEXT: ]
# LLVM-OFFSET-EQ-NEXT: Index: 0
# LLVM-OFFSET-EQ-NEXT: Name: <corrupt>
# LLVM-OFFSET-EQ-NEXT: }
# LLVM-OFFSET-EQ-NEXT: ]
# LLVM-OFFSET-EQ-NEXT: }
# LLVM-OFFSET-EQ-NEXT: ]
# GNU-OFFSET-EQ: Version needs section '.gnu.version_r' contains 1 entries:
# GNU-OFFSET-EQ-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 1 (.mystrtab)
# GNU-OFFSET-EQ-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1
# GNU-OFFSET-EQ-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .mystrtab
Type: SHT_STRTAB
Content: "00"
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: .mystrtab
AddressAlign: 4
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## Here we check that we can properly dump the case when a dependency file name
## and/or a dependency name string offset is greater than the string table size.
##
# RUN: yaml2obj --docnum=5 %s -o %t5
# RUN: llvm-readobj --sections -V %t5 | FileCheck %s --check-prefix=LLVM-OFFSET-GR
# RUN: llvm-readelf --sections -V %t5 | FileCheck %s --check-prefix=GNU-OFFSET-GR
# LLVM-OFFSET-GR: VersionRequirements [
# LLVM-OFFSET-GR-NEXT: Dependency {
# LLVM-OFFSET-GR-NEXT: Version: 1
# LLVM-OFFSET-GR-NEXT: Count: 1
# LLVM-OFFSET-GR-NEXT: FileName: <corrupt vn_file: 1>
# LLVM-OFFSET-GR-NEXT: Entries [
# LLVM-OFFSET-GR-NEXT: Entry {
# LLVM-OFFSET-GR-NEXT: Hash: 0
# LLVM-OFFSET-GR-NEXT: Flags [ (0x0)
# LLVM-OFFSET-GR-NEXT: ]
# LLVM-OFFSET-GR-NEXT: Index: 0
# LLVM-OFFSET-GR-NEXT: Name: <corrupt>
# LLVM-OFFSET-GR-NEXT: }
# LLVM-OFFSET-GR-NEXT: ]
# LLVM-OFFSET-GR-NEXT: }
# LLVM-OFFSET-GR-NEXT: ]
# GNU-OFFSET-GR: Version needs section '.gnu.version_r' contains 1 entries:
# GNU-OFFSET-GR-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 1 (.mystrtab)
# GNU-OFFSET-GR-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1
# GNU-OFFSET-GR-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .mystrtab
Type: SHT_STRTAB
Content: ""
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: .mystrtab
AddressAlign: 4
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## Check that we report a warning when sh_link references a non-existent section.
# RUN: yaml2obj --docnum=6 %s -DLINK=0xFF -o %t6
# RUN: llvm-readobj --sections -V %t6 2>&1 | FileCheck %s -DFILE=%t6 --implicit-check-not="warning:" --check-prefix=INVALID-LINK-LLVM
# RUN: llvm-readelf --sections -V %t6 2>&1 | FileCheck %s -DFILE=%t6 --implicit-check-not="warning:" --check-prefix=INVALID-LINK-GNU
# INVALID-LINK-LLVM: VersionRequirements [
# INVALID-LINK-LLVM-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_verneed section with index 1: invalid section index: 255
# INVALID-LINK-LLVM-NEXT: Dependency {
# INVALID-LINK-LLVM-NEXT: Version: 1
# INVALID-LINK-LLVM-NEXT: Count: 1
# INVALID-LINK-LLVM-NEXT: FileName: <corrupt vn_file: 1>
# INVALID-LINK-LLVM-NEXT: Entries [
# INVALID-LINK-LLVM-NEXT: Entry {
# INVALID-LINK-LLVM-NEXT: Hash: 0
# INVALID-LINK-LLVM-NEXT: Flags [ (0x0)
# INVALID-LINK-LLVM-NEXT: ]
# INVALID-LINK-LLVM-NEXT: Index: 0
# INVALID-LINK-LLVM-NEXT: Name: <corrupt>
# INVALID-LINK-LLVM-NEXT: }
# INVALID-LINK-LLVM-NEXT: ]
# INVALID-LINK-LLVM-NEXT: }
# INVALID-LINK-LLVM-NEXT: ]
# INVALID-LINK-GNU: Version needs section '.gnu.version_r' contains 1 entries:
# INVALID-LINK-GNU-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_verneed section with index 1: invalid section index: 255
# INVALID-LINK-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 255 (<corrupt>)
# INVALID-LINK-GNU-NEXT: 0x0000: Version: 1 File: <corrupt vn_file: 1> Cnt: 1
# INVALID-LINK-GNU-NEXT: 0x0010: Name: <corrupt> Flags: none Version: 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: [[LINK=.dynstr]]
ShName: [[SHNAME=<none>]]
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
- Name: .dynstr
Type: SHT_STRTAB
ShName: [[DYNSTRNAME=<none>]]
DynamicSymbols:
- Name: foo
## Check that llvm-readelf reports a warning when the name of the SHT_GNU_verneed section can't be read.
# RUN: yaml2obj --docnum=6 %s -DSHNAME=0xFFFFFFFF -o %t.invalid.name
# RUN: llvm-readobj -V %t.invalid.name 2>&1 | \
# RUN: FileCheck %s -DFILE=%t.invalid.name --check-prefix=INVALID-NAME-LLVM --implicit-check-not=warning:
# RUN: llvm-readelf -V %t.invalid.name 2>&1 | \
# RUN: FileCheck %s -DFILE=%t.invalid.name --check-prefix=INVALID-NAME-GNU --implicit-check-not=warning:
# INVALID-NAME-LLVM: VersionRequirements [
# INVALID-NAME-LLVM-NEXT: Dependency {
# INVALID-NAME-LLVM-NEXT: Version: 1
# INVALID-NAME-LLVM-NEXT: Count: 1
# INVALID-NAME-LLVM-NEXT: FileName: foo
# INVALID-NAME-LLVM-NEXT: Entries [
# INVALID-NAME-LLVM-NEXT: Entry {
# INVALID-NAME-LLVM-NEXT: Hash: 0
# INVALID-NAME-LLVM-NEXT: Flags [ (0x0)
# INVALID-NAME-LLVM-NEXT: ]
# INVALID-NAME-LLVM-NEXT: Index: 0
# INVALID-NAME-LLVM-NEXT: Name: foo
# INVALID-NAME-LLVM-NEXT: }
# INVALID-NAME-LLVM-NEXT: ]
# INVALID-NAME-LLVM-NEXT: }
# INVALID-NAME-LLVM-NEXT: ]
# 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 table
# INVALID-NAME-GNU-NEXT: Version needs section '<?>' contains 1 entries:
# INVALID-NAME-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynstr)
# INVALID-NAME-GNU-NEXT: 0x0000: Version: 1 File: foo Cnt: 1
# INVALID-NAME-GNU-NEXT: 0x0010: Name: foo Flags: none Version: 0
## Check that llvm-readelf reports a warning when we are unable to read the name of
## the section linked with the SHT_GNU_verneed section (usually ".dynstr").
# RUN: yaml2obj --docnum=6 %s -DDYNSTRNAME=0xFFFFFFFF -o %t.invalid.name2
# RUN: llvm-readobj -V %t.invalid.name2 2>&1 | \
# RUN: FileCheck %s -DFILE=%t.invalid.name2 --check-prefix=INVALID-NAME-LLVM --implicit-check-not=warning:
# RUN: llvm-readelf -V %t.invalid.name2 2>&1 | \
# RUN: FileCheck %s -DFILE=%t.invalid.name2 --check-prefix=INVALID-NAME2-GNU --implicit-check-not=warning:
# INVALID-NAME2-GNU: Version needs section '.gnu.version_r' contains 1 entries:
# 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 table
# INVALID-NAME2-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (<?>)
# INVALID-NAME2-GNU-NEXT: 0x0000: Version: 1 File: foo Cnt: 1
# INVALID-NAME2-GNU-NEXT: 0x0010: Name: foo Flags: none Version: 0
## Check that we report a warning when we can't read the content of the SHT_GNU_verneed section.
# RUN: yaml2obj --docnum=7 %s -o %t7
# RUN: llvm-readobj --sections -V %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DATA
# RUN: llvm-readelf --sections -V %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DATA
# 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)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
ShOffset: 0xFFFFFFFF
## Triggers creation of the .dynstr.
DynamicSymbols:
- Name: foo
## Check that we report a warning when a SHT_GNU_verneed section contains a version dependency
## that goes past the end of the section.
# RUN: yaml2obj --docnum=8 %s -o %t8
# RUN: llvm-readobj --sections -V %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=DEP-PAST-END
# RUN: llvm-readelf --sections -V %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=DEP-PAST-END
# DEP-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: version dependency 1 goes past the end of the section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
ShSize: 0x1
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## Check we report a warning when a version dependency is not correctly aligned in memory.
# RUN: yaml2obj --docnum=9 %s -o %t9
# RUN: llvm-readobj --sections -V %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=MISALIGNED-DEP
# RUN: llvm-readelf --sections -V %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=MISALIGNED-DEP
# MISALIGNED-DEP: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: found a misaligned version dependency entry at offset 0x0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Type: Fill
Size: 0x1
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: .dynstr
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## Check that we report a warning when a SHT_GNU_verneed section contains a dependency definition
## that refers to an auxiliary entry that goes past the end of the section.
# RUN: yaml2obj --docnum=10 %s -o %t10
# RUN: llvm-readobj --sections -V %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=AUX-PAST-END
# RUN: llvm-readelf --sections -V %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=AUX-PAST-END
# 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 section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
ShSize: 21
Dependencies:
- Version: 1
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## Check we report a warning when an auxiliary entry is not correctly aligned in memory.
# RUN: yaml2obj %s --docnum=11 -o %t11
# RUN: llvm-readobj -V %t11 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t11
# RUN: llvm-readelf -V %t11 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t11
# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verneed section with index 1: found a misaligned auxiliary entry at offset 0x11
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Info: 1
## The byte offset to the auxiliary entry is 0x11, i.e. it is not correctly aligned in memory.
Content: "0100010001000000110000000000000000000000"
DynamicSymbols:
- Name: foo
## Check how we handle the case when a dependency definition entry has an unsupported version.
# RUN: yaml2obj %s --docnum=12 -o %t12
# RUN: llvm-readobj -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12
# RUN: llvm-readelf -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12
# UNSUPPORTED-VERSION: warning: '[[FILE]]': unable to dump SHT_GNU_verneed section with index 1: version 65278 is not yet supported
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Dependencies:
- Version: 0xfefe
File: foo
Entries:
- Name: 'foo'
Hash: 0
Flags: 0
Other: 0
DynamicSymbols:
- Name: foo
## In this case SHT_GNU_verneed is linked to a custom dynamic string table, which is not
## called ".dynstr". Check we handle this case properly.
# RUN: yaml2obj --docnum=13 %s -o %t13
# RUN: llvm-readelf -V %t13 2>&1 | FileCheck %s -DFILE=%t13 --check-prefix=GNU-CUSTOM-DYNSTR
# RUN: llvm-readobj -V %t13 2>&1 | FileCheck %s -DFILE=%t13 --check-prefix=LLVM-CUSTOM-DYNSTR
# GNU-CUSTOM-DYNSTR: Version symbols section '.gnu.version' contains 2 entries:
# GNU-CUSTOM-DYNSTR-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 4 (.dynsym)
# GNU-CUSTOM-DYNSTR-NEXT: 000: 0 (*local*) 2 (bcdefghij)
# GNU-CUSTOM-DYNSTR: Version needs section '.gnu.version_r' contains 1 entries:
# GNU-CUSTOM-DYNSTR-NEXT: Addr: 0000000000000004 Offset: 0x000044 Link: 3 (.custom.dynstr)
# GNU-CUSTOM-DYNSTR-NEXT: 0x0000: Version: 1 File: j Cnt: 1
# GNU-CUSTOM-DYNSTR-NEXT: 0x0010: Name: bcdefghij Flags: none Version: 2
# LLVM-CUSTOM-DYNSTR: VersionSymbols [
# LLVM-CUSTOM-DYNSTR: Symbol {
# LLVM-CUSTOM-DYNSTR: Version: 2
# LLVM-CUSTOM-DYNSTR-NEXT: Name: foo@bcdefghij
# LLVM-CUSTOM-DYNSTR: VersionRequirements [
# LLVM-CUSTOM-DYNSTR: Dependency {
# LLVM-CUSTOM-DYNSTR: Entries [
# LLVM-CUSTOM-DYNSTR: Entry {
# LLVM-CUSTOM-DYNSTR: Index: 2
# LLVM-CUSTOM-DYNSTR-NEXT: Name: bcdefghij
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
Entries: [ 0, 2 ]
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: .custom.dynstr
AddressAlign: 4
Dependencies:
- Version: 1
File: zed
Entries:
- Name: 'bar'
Hash: 0
Flags: 0
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- Name: .custom.dynstr
Type: SHT_STRTAB
Content: "6162636465666768696a00" ## 'a','b','c','d','e','f','g','h','i','j',NIL
DynamicSymbols:
- Name: foo
Binding: STB_GLOBAL