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llvm-project/llvm/test/tools/llvm-readobj/ELF/broken-dynamic-reloc.test

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## Test how we handle cases when dynamic relocations or corresponding dynamic tags are broken.
## Check that llvm-readobj/llvm-readelf reports an error when dumping relocations if a dynamic
## symbol name offset is broken (goes past the end of the dynamic symbol string table).
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj --dyn-relocations %t1 2>&1 | FileCheck %s -DFILE=%t1 --check-prefix=LLVM
# RUN: llvm-readelf --dyn-relocations %t1 2>&1 | FileCheck %s -DFILE=%t1 --check-prefix=GNU
# LLVM: Dynamic Relocations {
# LLVM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 1: st_name (0x1234) is past the end of the string table of size 0x1
# LLVM-NEXT: 0x0 R_X86_64_NONE <corrupt> 0x0
# LLVM-NEXT: }
# GNU: 'RELA' relocation section at offset {{.+}} contains 24 bytes:
# GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 1: st_name (0x1234) is past the end of the string table of size 0x1
# GNU-NEXT: 0000000000000000 0000000100000000 R_X86_64_NONE 0000000000000000 <corrupt> + 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Link: .dynsym
Relocations:
- Symbol: 1 ## Index of a dynamic symbol with a broken st_name.
Type: R_X86_64_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELA
Value: 0x0000000000000000
- Tag: DT_RELASZ
Value: 0x0000000000000018
- Tag: DT_RELAENT
Value: 0x0000000000000018
- Tag: DT_NULL
Value: 0x0000000000000000
DynamicSymbols:
- StName: 0x1234
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table size stored in a DT_RELASZ entry.
# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: llvm-readobj --dyn-relocations %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=INVALID-DT-RELASZ
# RUN: llvm-readelf --dyn-relocations %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=INVALID-DT-RELASZ
# INVALID-DT-RELASZ: warning: '[[FILE]]': invalid DT_RELASZ value (0xff) or DT_RELAENT value (0x18)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELA
Value: 0x0
- Tag: DT_RELASZ
Value: 0xFF
- Tag: DT_RELAENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table entry size stored in a DT_RELAENT entry.
# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readobj --dyn-relocations %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=INVALID-DT-RELAENT
# RUN: llvm-readelf --dyn-relocations %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=INVALID-DT-RELAENT
## INVALID-DT-RELAENT: warning: '[[FILE]]': invalid DT_RELASZ value (0x18) or DT_RELAENT value (0xff)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELA
Value: 0x0
- Tag: DT_RELASZ
Value: 0x18
- Tag: DT_RELAENT
Value: 0xFF
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table size stored in a DT_RELSZ entry.
# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: llvm-readobj --dyn-relocations %t4 2>&1 | FileCheck %s -DFILE=%t4 --check-prefix=INVALID-DT-RELSZ
# RUN: llvm-readelf --dyn-relocations %t4 2>&1 | FileCheck %s -DFILE=%t4 --check-prefix=INVALID-DT-RELSZ
## INVALID-DT-RELSZ: warning: '[[FILE]]': invalid DT_RELSZ value (0xff) or DT_RELENT value (0x18)
--- !ELF
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_386
Sections:
- Name: .rela.dyn
Type: SHT_REL
Relocations:
- Type: R_386_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_REL
Value: 0x0
- Tag: DT_RELSZ
Value: 0xFF
- Tag: DT_RELENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table entry size stored in a DT_RELENT entry.
# RUN: yaml2obj --docnum=5 %s -o %t5
# RUN: llvm-readobj --dyn-relocations %t5 2>&1 | FileCheck %s -DFILE=%t5 --check-prefix=INVALID-DT-RELENT
# RUN: llvm-readelf --dyn-relocations %t5 2>&1 | FileCheck %s -DFILE=%t5 --check-prefix=INVALID-DT-RELENT
## INVALID-DT-RELENT: warning: '[[FILE]]': invalid DT_RELSZ value (0x18) or DT_RELENT value (0xff)
--- !ELF
FileHeader:
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_386
Sections:
- Name: .rela.dyn
Type: SHT_REL
Relocations:
- Type: R_386_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_REL
Value: 0x0
- Tag: DT_RELSZ
Value: 0x18
- Tag: DT_RELENT
Value: 0xFF
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table size stored in a DT_RELRSZ/DT_ANDROID_RELRSZ entry.
# RUN: yaml2obj --docnum=6 %s -o %t6
# RUN: llvm-readobj --dyn-relocations %t6 2>&1 | FileCheck %s -DFILE=%t6 --check-prefix=INVALID-DT-RELRSZ
# RUN: llvm-readelf --dyn-relocations %t6 2>&1 | FileCheck %s -DFILE=%t6 --check-prefix=INVALID-DT-RELRSZ
# RUN: yaml2obj --docnum=7 %s -o %t7
# RUN: llvm-readobj --dyn-relocations %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DT-ANDROID-RELRSZ
# RUN: llvm-readelf --dyn-relocations %t7 2>&1 | FileCheck %s -DFILE=%t7 --check-prefix=INVALID-DT-ANDROID-RELRSZ
## INVALID-DT-RELRSZ: warning: '[[FILE]]': invalid DT_RELRSZ value (0xff) or DT_RELRENT value (0x18)
## INVALID-DT-ANDROID-RELRSZ: warning: '[[FILE]]': invalid DT_ANDROID_RELRSZ value (0xff) or DT_ANDROID_RELRENT value (0x18)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .relr.dyn
Type: SHT_RELR
Flags: [ SHF_ALLOC ]
Content: ""
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELR
Value: 0x0
- Tag: DT_RELRSZ
Value: 0xFF
- Tag: DT_RELRENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .relr.dyn
- Section: .dynamic
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .relr.dyn
Type: SHT_RELR
Flags: [ SHF_ALLOC ]
Content: ""
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELR
Value: 0x0
- Tag: DT_ANDROID_RELRSZ
Value: 0xFF
- Tag: DT_ANDROID_RELRENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .relr.dyn
- Section: .dynamic
## Show we print a warning for an invalid relocation table entry size stored in a DT_RELRENT/DT_ANDROID_RELRENT entry.
# RUN: yaml2obj --docnum=8 %s -o %t8
# RUN: llvm-readobj --dyn-relocations %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=INVALID-DT-RELRENT
# RUN: llvm-readelf --dyn-relocations %t8 2>&1 | FileCheck %s -DFILE=%t8 --check-prefix=INVALID-DT-RELRENT
# RUN: yaml2obj --docnum=9 %s -o %t9
# RUN: llvm-readobj --dyn-relocations %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=INVALID-DT-ANDROID-RELRENT
# RUN: llvm-readelf --dyn-relocations %t9 2>&1 | FileCheck %s -DFILE=%t9 --check-prefix=INVALID-DT-ANDROID-RELRENT
## INVALID-DT-RELRENT: invalid DT_RELRSZ value (0x18) or DT_RELRENT value (0xff)
## INVALID-DT-ANDROID-RELRENT: invalid DT_ANDROID_RELRSZ value (0x18) or DT_ANDROID_RELRENT value (0xff)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .relr.dyn
Type: SHT_RELR
Flags: [ SHF_ALLOC ]
Content: ""
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELR
Value: 0x0
- Tag: DT_RELRSZ
Value: 0x18
- Tag: DT_RELRENT
Value: 0xFF
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .relr.dyn
- Section: .dynamic
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .relr.dyn
Type: SHT_RELR
Flags: [ SHF_ALLOC ]
Content: ""
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELR
Value: 0x0
- Tag: DT_ANDROID_RELRSZ
Value: 0x18
- Tag: DT_ANDROID_RELRENT
Value: 0xFF
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .relr.dyn
- Section: .dynamic
## Show we print a warning for an invalid value of DT_PLTRELSZ, which describes the total size
## of the relocation entries associated with the procedure linkage table.
# RUN: yaml2obj --docnum=10 %s -o %t10
# RUN: llvm-readobj --dyn-relocations %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=INVALID-DT-PLTRELSZ
# RUN: llvm-readelf --dyn-relocations %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=INVALID-DT-PLTRELSZ
# INVALID-DT-PLTRELSZ: warning: '[[FILE]]': invalid DT_PLTRELSZ value (0xff){{$}}
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .rela.plt
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_JMPREL
Value: 0x0
- Tag: DT_PLTRELSZ
Value: 0xFF ## The valid value would be 0x18.
- Tag: DT_PLTREL
Value: 0x7 ## DT_RELA
- Tag: DT_NULL
Value: 0x0
DynamicSymbols: []
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.plt
- Section: .dynamic
## Show we print a warning when dumping dynamic relocations if there is no dynamic symbol table.
# RUN: yaml2obj --docnum=11 %s -o %t11
# RUN: llvm-readobj --dyn-relocations %t11 2>&1 | FileCheck %s -DFILE=%t11 --check-prefix=LLVM-NO-DYNSYM
# RUN: llvm-readelf --dyn-relocations %t11 2>&1 | FileCheck %s -DFILE=%t11 --check-prefix=GNU-NO-DYNSYM
# LLVM-NO-DYNSYM: Dynamic Relocations {
# LLVM-NO-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 0: no dynamic symbol table found
# LLVM-NO-DYNSYM-NEXT: 0x0 R_X86_64_NONE <corrupt> 0x0
# LLVM-NO-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 1: no dynamic symbol table found
# LLVM-NO-DYNSYM-NEXT: 0x0 R_X86_64_NONE <corrupt> 0x0
# LLVM-NO-DYNSYM-NEXT: }
# GNU-NO-DYNSYM: 'RELA' relocation section at offset 0x78 contains 48 bytes:
# GNU-NO-DYNSYM-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-NO-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 0: no dynamic symbol table found
# GNU-NO-DYNSYM-NEXT: 0000000000000000 0000000000000000 R_X86_64_NONE <corrupt> + 0
# GNU-NO-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 1: no dynamic symbol table found
# GNU-NO-DYNSYM-NEXT: 0000000000000000 0000000100000000 R_X86_64_NONE <corrupt> + 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
- Type: R_X86_64_NONE
Symbol: 0x1
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELA
Value: 0x0
- Tag: DT_RELASZ
Value: 0x30
- Tag: DT_RELAENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
## Show we print a warning when the symbol index of a dynamic relocation is too
## large (goes past the end of the dynamic symbol table).
# RUN: yaml2obj --docnum=12 %s -o %t12
# RUN: llvm-readobj --dyn-relocations %t12 2>&1 | FileCheck %s -DFILE=%t12 --check-prefix=LLVM-INVALID-DYNSYM
# RUN: llvm-readelf --dyn-relocations %t12 2>&1 | FileCheck %s -DFILE=%t12 --check-prefix=GNU-INVALID-DYNSYM
# LLVM-INVALID-DYNSYM: Dynamic Relocations {
# LLVM-INVALID-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 2: index is greater than or equal to the number of dynamic symbols (2)
# LLVM-INVALID-DYNSYM-NEXT: 0x0 R_X86_64_NONE <corrupt> 0x0
# LLVM-INVALID-DYNSYM-NEXT: }
# GNU-INVALID-DYNSYM: 'RELA' relocation section at offset 0x78 contains 24 bytes:
# GNU-INVALID-DYNSYM-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend
# GNU-INVALID-DYNSYM-NEXT: warning: '[[FILE]]': unable to get name of the dynamic symbol with index 2: index is greater than or equal to the number of dynamic symbols (2)
# GNU-INVALID-DYNSYM-NEXT: 0000000000000000 0000000200000000 R_X86_64_NONE <corrupt> + 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .rela.dyn
Type: SHT_RELA
Relocations:
- Type: R_X86_64_NONE
Symbol: 0x2
- Name: .dynamic
Type: SHT_DYNAMIC
Entries:
- Tag: DT_RELA
Value: 0x0
- Tag: DT_RELASZ
Value: 0x18
- Tag: DT_RELAENT
Value: 0x18
- Tag: DT_NULL
Value: 0x0
DynamicSymbols:
- Name: foo
ProgramHeaders:
- Type: PT_LOAD
Sections:
- Section: .rela.dyn
- Section: .dynamic
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