296 lines
14 KiB
Plaintext
296 lines
14 KiB
Plaintext
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## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_versym sections.
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## Check that we report a warning when sh_link references a non-existent section.
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# RUN: yaml2obj --docnum=1 -DLINK=0xFF %s -o %t1
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# RUN: llvm-readelf -V %t1 2>&1 | FileCheck -DFILE=%t1 %s --check-prefix=GNU-INVALID-LINK
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# RUN: llvm-readobj -V %t1 2>&1 | FileCheck -DFILE=%t1 %s --check-prefix=LLVM-INVALID-LINK
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# GNU-INVALID-LINK: Version symbols section '.gnu.version' contains 1 entries:
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# GNU-INVALID-LINK-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_versym section with index 1: invalid section index: 255
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# GNU-INVALID-LINK-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 255 (<corrupt>)
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# LLVM-INVALID-LINK: VersionSymbols [
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# LLVM-INVALID-LINK-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_versym section with index 1: invalid section index: 255
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# LLVM-INVALID-LINK-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Link: [[LINK]]
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Entries: [ 0 ]
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## Check that we report a warning when the sh_link field of a SHT_GNU_versym section does not reference
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## a dynamic symbol table section.
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# RUN: yaml2obj --docnum=1 -DLINK=0x0 %s -o %t2
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# RUN: llvm-readelf -V %t2 2>&1 | FileCheck -DFILE=%t2 %s --check-prefix=INVALID-SYMBOL-TABLE-GNU
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# RUN: llvm-readobj -V %t2 2>&1 | FileCheck -DFILE=%t2 %s --check-prefix=INVALID-SYMBOL-TABLE-LLVM
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# INVALID-SYMBOL-TABLE-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# INVALID-SYMBOL-TABLE-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 0 ()
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# INVALID-SYMBOL-TABLE-GNU-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_versym section with index 1: expected SHT_DYNSYM, but got SHT_NULL
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# INVALID-SYMBOL-TABLE-GNU-NEXT: 000: 0 (*local*)
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# INVALID-SYMBOL-TABLE-LLVM: VersionSymbols [
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# INVALID-SYMBOL-TABLE-LLVM-NEXT: warning: '[[FILE]]': invalid section linked to SHT_GNU_versym section with index 1: expected SHT_DYNSYM, but got SHT_NULL
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# INVALID-SYMBOL-TABLE-LLVM-NEXT: ]
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## Check we report a warning when something is wrong with a string table linked to a symbol table that
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## is linked with SHT_GNU_versym. In this case we are unable to produce LLVM style output,
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## but GNU style is fine because it does not need that string table.
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# RUN: yaml2obj --docnum=2 %s -o %t3
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# RUN: llvm-readelf -V %t3 2>&1 | FileCheck -DFILE=%t3 %s --check-prefix=INVALID-STRING-TABLE-GNU
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# RUN: llvm-readobj -V %t3 2>&1 | FileCheck -DFILE=%t3 %s --check-prefix=INVALID-STRING-TABLE-LLVM
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# INVALID-STRING-TABLE-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# INVALID-STRING-TABLE-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)
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# INVALID-STRING-TABLE-GNU-NEXT: warning: '[[FILE]]': can't get a string table for the symbol table linked to SHT_GNU_versym section with index 1: invalid string table linked to SHT_DYNSYM section with index 3: invalid sh_type for string table section [index 2]: expected SHT_STRTAB, but got SHT_NULL
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# INVALID-STRING-TABLE-GNU-NEXT: 000: 0 (*local*)
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# INVALID-STRING-TABLE-LLVM: VersionSymbols [
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# INVALID-STRING-TABLE-LLVM-NEXT: warning: '[[FILE]]': can't get a string table for the symbol table linked to SHT_GNU_versym section with index 1: invalid string table linked to SHT_DYNSYM section with index 3: invalid sh_type for string table section [index 2]: expected SHT_STRTAB, but got SHT_NULL
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# INVALID-STRING-TABLE-LLVM-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Entries: [ 0 ]
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- Name: .dynstr
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Type: SHT_NULL
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DynamicSymbols: []
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## Check we report a warning when a SHT_GNU_versym section is not correctly aligned in memory.
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# RUN: yaml2obj --docnum=3 %s -DSHOFFSET=0xffff -o %t4
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# RUN: llvm-readelf -V %t4 2>&1 | FileCheck -DFILE=%t4 %s --check-prefix=MISALIGNED-GNU
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# RUN: llvm-readobj -V %t4 2>&1 | FileCheck -DFILE=%t4 %s --check-prefix=MISALIGNED-LLVM
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# MISALIGNED-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# MISALIGNED-GNU-NEXT: Addr: 0000000000000000 Offset: 0x00ffff Link: 2 (.dynsym)
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# MISALIGNED-GNU-NEXT: warning: '[[FILE]]': the SHT_GNU_versym section with index 1 is misaligned
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# MISALIGNED-LLVM: VersionSymbols [
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# MISALIGNED-LLVM-NEXT: warning: '[[FILE]]': the SHT_GNU_versym section with index 1 is misaligned
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# MISALIGNED-LLVM-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Entries: [ 0 ]
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ShOffset: [[SHOFFSET=<none>]]
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ShName: [[SHNAME=<none>]]
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- Name: .dynsym
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Type: SHT_DYNSYM
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ShName: [[DYNSYMNAME=<none>]]
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DynamicSymbols: []
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## Check that llvm-readelf reports a warning when the name of the SHT_GNU_versym section can't be read.
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# RUN: yaml2obj %s --docnum=3 -DSHNAME=0xFF -o %t.invalid.name
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# RUN: llvm-readobj -V %t.invalid.name 2>&1 | \
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# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name --implicit-check-not=warning:
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# RUN: llvm-readelf -V %t.invalid.name 2>&1 | \
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# RUN: FileCheck %s --check-prefix=INVALID-NAME-GNU -DFILE=%t.invalid.name --implicit-check-not=warning:
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# INVALID-NAME-LLVM: VersionSymbols [
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# INVALID-NAME-LLVM-NEXT: Symbol {
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# INVALID-NAME-LLVM-NEXT: Version: 0
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# INVALID-NAME-LLVM-NEXT: Name:
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# INVALID-NAME-LLVM-NEXT: }
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# INVALID-NAME-LLVM-NEXT: ]
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# INVALID-NAME-GNU: warning: '[[FILE]]': unable to get the name of SHT_GNU_versym 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
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# INVALID-NAME-GNU-NEXT: Version symbols section '<?>' contains 1 entries:
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# INVALID-NAME-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynsym)
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# INVALID-NAME-GNU-NEXT: 000: 0 (*local*)
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## Check that llvm-readelf reports a warning when we are unable to read the name of
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## the section linked with the SHT_GNU_verneed section (usually ".dynsym").
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# RUN: yaml2obj %s --docnum=3 -DDYNSYMNAME=0xFF -o %t.invalid.name2
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# RUN: llvm-readobj -V %t.invalid.name2 2>&1 | \
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# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name2 --implicit-check-not=warning:
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# RUN: llvm-readelf -V %t.invalid.name2 2>&1 | \
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# RUN: FileCheck %s --check-prefix=INVALID-NAME2-GNU -DFILE=%t.invalid.name2 --implicit-check-not=warning:
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# INVALID-NAME2-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# INVALID-NAME2-GNU-NEXT: warning: '[[FILE]]': unable to get the name of SHT_DYNSYM 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
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# INVALID-NAME2-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (<?>)
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# INVALID-NAME2-GNU-NEXT: 000: 0 (*local*)
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## Check we report a warning when a SHT_GNU_versym section has an invalid entry size.
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# RUN: yaml2obj --docnum=4 %s -o %t5
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# RUN: llvm-readelf -V --dyn-syms %t5 2>&1 | FileCheck -DFILE=%t5 %s --check-prefix=INVALID-ENT-SIZE-GNU
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# RUN: llvm-readobj -V --dyn-syms %t5 2>&1 | FileCheck -DFILE=%t5 %s --check-prefix=INVALID-ENT-SIZE-LLVM
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# INVALID-ENT-SIZE-GNU: Symbol table '.dynsym' contains 2 entries:
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# INVALID-ENT-SIZE-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# INVALID-ENT-SIZE-GNU-NEXT: warning: '[[FILE]]': section [index 1] has invalid sh_entsize: expected 2, but got 3
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# INVALID-ENT-SIZE-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND @<corrupt>
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# INVALID-ENT-SIZE-GNU-NEXT: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND foo@<corrupt>
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# INVALID-ENT-SIZE-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# INVALID-ENT-SIZE-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynsym)
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# INVALID-ENT-SIZE-GNU-NEXT: warning: '[[FILE]]': cannot read content of SHT_GNU_versym section with index 1: section [index 1] has invalid sh_entsize: expected 2, but got 3
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# INVALID-ENT-SIZE-LLVM: DynamicSymbols [
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# INVALID-ENT-SIZE-LLVM-NEXT: warning: '[[FILE]]': section [index 1] has invalid sh_entsize: expected 2, but got 3
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# INVALID-ENT-SIZE-LLVM-NEXT: Symbol {
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# INVALID-ENT-SIZE-LLVM-NEXT: Name: @<corrupt> (0)
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# INVALID-ENT-SIZE-LLVM-NEXT: Value: 0x0
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# INVALID-ENT-SIZE-LLVM-NEXT: Size: 0
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# INVALID-ENT-SIZE-LLVM-NEXT: Binding: Local (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: Type: None (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: Other: 0
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# INVALID-ENT-SIZE-LLVM-NEXT: Section: Undefined (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: }
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# INVALID-ENT-SIZE-LLVM-NEXT: Symbol {
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# INVALID-ENT-SIZE-LLVM-NEXT: Name: foo@<corrupt> (1)
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# INVALID-ENT-SIZE-LLVM-NEXT: Value: 0x0
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# INVALID-ENT-SIZE-LLVM-NEXT: Size: 0
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# INVALID-ENT-SIZE-LLVM-NEXT: Binding: Local (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: Type: None (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: Other: 0
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# INVALID-ENT-SIZE-LLVM-NEXT: Section: Undefined (0x0)
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# INVALID-ENT-SIZE-LLVM-NEXT: }
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# INVALID-ENT-SIZE-LLVM-NEXT: ]
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# INVALID-ENT-SIZE-LLVM: VersionSymbols [
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# INVALID-ENT-SIZE-LLVM-NEXT: warning: '[[FILE]]': cannot read content of SHT_GNU_versym section with index 1: section [index 1] has invalid sh_entsize: expected 2, but got 3
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# INVALID-ENT-SIZE-LLVM-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Entries: [ 0 ]
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EntSize: 3
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DynamicSymbols:
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- Name: foo
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## Check we report a warning when the number of version entries does not match the number of symbols in the associated symbol table.
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# RUN: yaml2obj --docnum=5 %s -o %t6
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# RUN: llvm-readelf -V %t6 2>&1 | FileCheck -DFILE=%t6 %s --check-prefix=SYMBOLS-NUM-MISMATCH-GNU
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# RUN: llvm-readobj -V %t6 2>&1 | FileCheck -DFILE=%t6 %s --check-prefix=SYMBOLS-NUM-MISMATCH-LLVM
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# SYMBOLS-NUM-MISMATCH-GNU: Version symbols section '.gnu.version' contains 2 entries:
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# SYMBOLS-NUM-MISMATCH-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynsym)
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# SYMBOLS-NUM-MISMATCH-GNU-NEXT: warning: '[[FILE]]': SHT_GNU_versym section with index 1: the number of entries (2) does not match the number of symbols (3) in the symbol table with index 2
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# SYMBOLS-NUM-MISMATCH-GNU-NEXT: 000: 0 (*local*) 1 (*global*)
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# SYMBOLS-NUM-MISMATCH-LLVM: VersionSymbols [
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# SYMBOLS-NUM-MISMATCH-LLVM-NEXT: warning: '[[FILE]]': SHT_GNU_versym section with index 1: the number of entries (2) does not match the number of symbols (3) in the symbol table with index 2
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# SYMBOLS-NUM-MISMATCH-LLVM-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Entries: [ 0, 1 ]
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DynamicSymbols:
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- Name: foo
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- Name: bar
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## Check we can dump a SHT_GNU_versym section when it is linked to a custom dynamic symbol
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## table that is not called ".dynsym".
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# RUN: yaml2obj --docnum=6 %s -o %t7
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# RUN: llvm-readelf -V %t7 2>&1 | FileCheck -DFILE=%t7 %s --check-prefix=CUSTOM-SYMTAB-GNU
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# RUN: llvm-readobj -V %t7 2>&1 | FileCheck -DFILE=%t7 %s --check-prefix=CUSTOM-SYMTAB-LLVM
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# CUSTOM-SYMTAB-GNU: Version symbols section '.gnu.version' contains 1 entries:
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# CUSTOM-SYMTAB-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.foo.dynsym)
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# CUSTOM-SYMTAB-GNU-NEXT: 000: 0 (*local*)
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# CUSTOM-SYMTAB-LLVM: VersionSymbols [
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# CUSTOM-SYMTAB-LLVM-NEXT: Symbol {
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# CUSTOM-SYMTAB-LLVM-NEXT: Version: 0
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# CUSTOM-SYMTAB-LLVM-NEXT: Name:
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# CUSTOM-SYMTAB-LLVM-NEXT: }
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# CUSTOM-SYMTAB-LLVM-NEXT: ]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Sections:
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- Name: .gnu.version
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Type: SHT_GNU_versym
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Link: .foo.dynsym
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Entries: [ 0 ]
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## A custom empty dynamic symbol table with a null entry.
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- Name: .foo.dynsym
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Type: SHT_DYNSYM
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Link: .dynstr
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EntSize: 24
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Size: 24
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DynamicSymbols:
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- Name: foo
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- Name: bar
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## Version index in a SHT_GNU_versym section overflows the version map.
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## Check we report it when trying to dump dynamic symbols.
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# RUN: yaml2obj %s --docnum=7 -o %t8
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# RUN: llvm-readobj --dyn-syms %t8 2>&1 \
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# RUN: | FileCheck -DFILE=%t8 --implicit-check-not=warning --check-prefix=VERSION-OVERFLOW-LLVM %s
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# RUN: llvm-readelf --dyn-syms %t8 2>&1 \
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# RUN: | FileCheck -DFILE=%t8 --implicit-check-not=warning --check-prefix=VERSION-OVERFLOW-GNU %s
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# VERSION-OVERFLOW-LLVM: DynamicSymbols [
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# VERSION-OVERFLOW-LLVM-NEXT: warning: '[[FILE]]': SHT_GNU_versym section refers to a version index 255 which is missing
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# VERSION-OVERFLOW-LLVM-NEXT: Symbol {
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# VERSION-OVERFLOW-LLVM-NEXT: Name: @<corrupt> (0)
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# VERSION-OVERFLOW-LLVM: warning: '[[FILE]]': SHT_GNU_versym section refers to a version index 254 which is missing
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# VERSION-OVERFLOW-LLVM-NEXT: Symbol {
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# VERSION-OVERFLOW-LLVM-NEXT: Name: foo@<corrupt> (5)
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# VERSION-OVERFLOW-LLVM: Symbol {
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# VERSION-OVERFLOW-LLVM-NEXT: Name: bar@<corrupt> (1)
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# VERSION-OVERFLOW-GNU: Symbol table '.dynsym' contains 3 entries:
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# VERSION-OVERFLOW-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
|
||
|
|
# VERSION-OVERFLOW-GNU-NEXT: warning: '[[FILE]]': SHT_GNU_versym section refers to a version index 255 which is missing
|
||
|
|
# VERSION-OVERFLOW-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND @<corrupt>
|
||
|
|
# VERSION-OVERFLOW-GNU-NEXT: warning: '[[FILE]]': SHT_GNU_versym section refers to a version index 254 which is missing
|
||
|
|
# VERSION-OVERFLOW-GNU-NEXT: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND foo@<corrupt>
|
||
|
|
# VERSION-OVERFLOW-GNU-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND bar@<corrupt
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS64
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .gnu.version
|
||
|
|
Type: SHT_GNU_versym
|
||
|
|
Entries: [ 0xFF, 0xFE, 0xFF ]
|
||
|
|
DynamicSymbols:
|
||
|
|
- Name: foo
|
||
|
|
- Name: bar
|