relocations.test 13.6 KB
## Check llvm-readobj and llvm-readelf print relocations as expected.

## Show that ELF64 is dumped correctly.
# RUN: yaml2obj %s --docnum=1 -o %t64
# RUN: llvm-readobj -r %t64 \
# RUN:   | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocs %t64 \
# RUN:   | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocations %t64 \
# RUN:   | FileCheck %s --check-prefix=LLVM-64 --strict-whitespace --match-full-lines

#      LLVM-64:Relocations [
# LLVM-64-NEXT:  Section (2) .rel.text {
# LLVM-64-NEXT:    0x0 R_X86_64_NONE rel_0 0x0
# LLVM-64-NEXT:    0x1 R_X86_64_PC32 rel_neg 0x0
# LLVM-64-NEXT:    0x5 R_X86_64_PLT32 rel_pos 0x0
# LLVM-64-NEXT:    0x9 R_X86_64_64 rel_64 0x0
# LLVM-64-NEXT:  }
# LLVM-64-NEXT:  Section (3) .rela.text {
# LLVM-64-NEXT:    0x0 R_X86_64_NONE rela_0 0x0
# LLVM-64-NEXT:    0x1 R_X86_64_PC32 rela_neg 0xFFFFFFFFFFFFFFFF
# LLVM-64-NEXT:    0x5 R_X86_64_PLT32 rela_pos 0x2
# LLVM-64-NEXT:    0xFFFFFFFFFFFFFFFF R_X86_64_64 rela_minneg 0x8000000000000000
# LLVM-64-NEXT:    0x9 R_X86_64_32S rela_maxpos 0x7FFFFFFFFFFFFFFF
# LLVM-64-NEXT:  }
# LLVM-64-NEXT:]

# RUN: llvm-readelf -r %t64 \
# RUN:   | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocs %t64 \
# RUN:   | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocations %t64 \
# RUN:   | FileCheck %s --check-prefix=GNU-64 --strict-whitespace --match-full-lines

#      GNU-64:Relocation section '.rel.text' at offset 0x51 contains 4 entries:
# GNU-64-NEXT:    Offset             Info             Type               Symbol's Value  Symbol's Name
# GNU-64-NEXT:0000000000000000  0000000100000000 R_X86_64_NONE          0000000000000000 rel_0
# GNU-64-NEXT:0000000000000001  0000000200000002 R_X86_64_PC32          0000000000000001 rel_neg
# GNU-64-NEXT:0000000000000005  0000000300000004 R_X86_64_PLT32         0000000000000002 rel_pos
# GNU-64-NEXT:0000000000000009  0000000400000001 R_X86_64_64            ffffffffffffffff rel_64
# GNU-64-EMPTY:
# GNU-64-NEXT:Relocation section '.rela.text' at offset 0x91 contains 5 entries:
# GNU-64-NEXT:    Offset             Info             Type               Symbol's Value  Symbol's Name + Addend
# GNU-64-NEXT:0000000000000000  0000000500000000 R_X86_64_NONE          0000000000000000 rela_0 + 0
# GNU-64-NEXT:0000000000000001  0000000600000002 R_X86_64_PC32          0000000000000001 rela_neg - 1
# GNU-64-NEXT:0000000000000005  0000000700000004 R_X86_64_PLT32         0000000000000002 rela_pos + 2
# GNU-64-NEXT:ffffffffffffffff  0000000800000001 R_X86_64_64            0000000000000003 rela_minneg - 8000000000000000
# GNU-64-NEXT:0000000000000009  000000090000000b R_X86_64_32S           ffffffffffffffff rela_maxpos + 7fffffffffffffff

## Show that --expand-relocs expands the relocation dump for LLVM style only
## (and not GNU).
# RUN: llvm-readobj -r --expand-relocs %t64 \
# RUN:   | FileCheck %s --check-prefix=LLVM-EXPAND-64 --match-full-lines --strict-whitespace
# RUN: llvm-readelf -r --expand-relocs %t64 \
# RUN:   | FileCheck %s --check-prefix=GNU-64 --match-full-lines --strict-whitespace

#      LLVM-EXPAND-64:Relocations [
# LLVM-EXPAND-64-NEXT:  Section (2) .rel.text {
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x0
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_NONE (0)
# LLVM-EXPAND-64-NEXT:      Symbol: rel_0 (1)
# LLVM-EXPAND-64-NEXT:      Addend: 0x0
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x1
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_PC32 (2)
# LLVM-EXPAND-64-NEXT:      Symbol: rel_neg (2)
# LLVM-EXPAND-64-NEXT:      Addend: 0x0
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x5
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_PLT32 (4)
# LLVM-EXPAND-64-NEXT:      Symbol: rel_pos (3)
# LLVM-EXPAND-64-NEXT:      Addend: 0x0
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x9
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_64 (1)
# LLVM-EXPAND-64-NEXT:      Symbol: rel_64 (4)
# LLVM-EXPAND-64-NEXT:      Addend: 0x0
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:  }
# LLVM-EXPAND-64-NEXT:  Section (3) .rela.text {
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x0
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_NONE (0)
# LLVM-EXPAND-64-NEXT:      Symbol: rela_0 (5)
# LLVM-EXPAND-64-NEXT:      Addend: 0x0
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x1
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_PC32 (2)
# LLVM-EXPAND-64-NEXT:      Symbol: rela_neg (6)
# LLVM-EXPAND-64-NEXT:      Addend: 0xFFFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x5
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_PLT32 (4)
# LLVM-EXPAND-64-NEXT:      Symbol: rela_pos (7)
# LLVM-EXPAND-64-NEXT:      Addend: 0x2
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0xFFFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_64 (1)
# LLVM-EXPAND-64-NEXT:      Symbol: rela_minneg (8)
# LLVM-EXPAND-64-NEXT:      Addend: 0x8000000000000000
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:    Relocation {
# LLVM-EXPAND-64-NEXT:      Offset: 0x9
# LLVM-EXPAND-64-NEXT:      Type: R_X86_64_32S (11)
# LLVM-EXPAND-64-NEXT:      Symbol: rela_maxpos (9)
# LLVM-EXPAND-64-NEXT:      Addend: 0x7FFFFFFFFFFFFFFF
# LLVM-EXPAND-64-NEXT:    }
# LLVM-EXPAND-64-NEXT:  }
# LLVM-EXPAND-64-NEXT:]

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name: .text
    Type: SHT_PROGBITS
    Content: '00FFFFFFFF020000001234567890ABCDEF'
  - Name: .rel.text
    Type: SHT_REL
    Info: .text
    Relocations:
      - Offset: 0x0
        Symbol: rel_0
        Type:   R_X86_64_NONE
      - Offset: 0x1
        Symbol: rel_neg
        Type:   R_X86_64_PC32
      - Offset: 0x5
        Symbol: rel_pos
        Type:   R_X86_64_PLT32
      - Offset: 0x9
        Symbol: rel_64
        Type:   R_X86_64_64
  - Name: .rela.text
    Type: SHT_RELA
    Info: .text
    Relocations:
      - Offset: 0x0
        Symbol: rela_0
        Type:   R_X86_64_NONE
        Addend: 0
      - Offset: 0x1
        Symbol: rela_neg
        Type:   R_X86_64_PC32
        Addend: -1
      - Offset: 0x5
        Symbol: rela_pos
        Type:   R_X86_64_PLT32
        Addend: 2
      - Offset: 0xFFFFFFFFFFFFFFFF
        Symbol: rela_minneg
        Type:   R_X86_64_64
        Addend: -9223372036854775808 ## Min 64-bit signed.
      - Offset: 0x9
        Symbol: rela_maxpos
        Type:   R_X86_64_32S
        Addend: 9223372036854775807 ## Max 64-bit signed.
Symbols:
  - Name:    rel_0
    Section: .text
    Value:   0
  - Name:     rel_neg
    Section: .text
    Value:   1
  - Name:    rel_pos
    Section: .text
    Value:   2
  - Name:    rel_64
    Section: .text
    Value:   0xFFFFFFFFFFFFFFFF
  - Name:    rela_0
    Section: .text
    Value:   0
  - Name:    rela_neg
    Section: .text
    Value:   1
  - Name:    rela_pos
    Section: .text
    Value:   2
  - Name:    rela_minneg
    Section: .text
    Value:   3
  - Name:    rela_maxpos
    Section: .text
    Value:   0xFFFFFFFFFFFFFFFF

## Show that ELF32 is dumped correctly.
# RUN: yaml2obj %s --docnum=2 -o %t32
# RUN: llvm-readobj -r %t32 \
# RUN:   | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocs %t32 \
# RUN:   | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines
# RUN: llvm-readobj --relocations %t32 \
# RUN:   | FileCheck %s --check-prefix=LLVM-32 --strict-whitespace --match-full-lines

#      LLVM-32:Relocations [
# LLVM-32-NEXT:  Section (2) .rel.text {
# LLVM-32-NEXT:    0x0 R_386_NONE rel_0 0x0
# LLVM-32-NEXT:    0x1 R_386_PC32 rel_neg 0x0
# LLVM-32-NEXT:    0x5 R_386_PLT32 rel_pos 0x0
# LLVM-32-NEXT:  }
# LLVM-32-NEXT:  Section (3) .rela.text {
# LLVM-32-NEXT:    0x0 R_386_NONE rela_0 0x0
# LLVM-32-NEXT:    0x1 R_386_PC32 rela_neg 0xFFFFFFFF
# LLVM-32-NEXT:    0x5 R_386_PLT32 rela_pos 0x2
# LLVM-32-NEXT:    0xFFFFFFFF R_386_32 rela_minneg 0x80000000
# LLVM-32-NEXT:    0x9 R_386_GOT32 rela_maxpos 0x7FFFFFFF
# LLVM-32-NEXT:  }
# LLVM-32-NEXT:]

# RUN: llvm-readelf -r %t32 \
# RUN:   | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocs %t32 \
# RUN:   | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf --relocations %t32 \
# RUN:   | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines

#      GNU-32:Relocation section '.rel.text' at offset 0x3d contains 3 entries:
# GNU-32-NEXT: Offset     Info    Type                Sym. Value  Symbol's Name
# GNU-32-NEXT:00000000  00000100 R_386_NONE             00000000   rel_0
# GNU-32-NEXT:00000001  00000202 R_386_PC32             00000001   rel_neg
# GNU-32-NEXT:00000005  00000304 R_386_PLT32            ffffffff   rel_pos
# GNU-32-EMPTY:
# GNU-32-NEXT:Relocation section '.rela.text' at offset 0x55 contains 5 entries:
# GNU-32-NEXT: Offset     Info    Type                Sym. Value  Symbol's Name + Addend
# GNU-32-NEXT:00000000  00000400 R_386_NONE             00000000   rela_0 + 0
# GNU-32-NEXT:00000001  00000502 R_386_PC32             00000001   rela_neg - 1
# GNU-32-NEXT:00000005  00000604 R_386_PLT32            00000002   rela_pos + 2
# GNU-32-NEXT:ffffffff  00000701 R_386_32               00000003   rela_minneg - 80000000
# GNU-32-NEXT:00000009  00000803 R_386_GOT32            ffffffff   rela_maxpos + 7fffffff

## Show that --expand-relocs expands the relocation dump for LLVM style only
## (and not GNU).
# RUN: llvm-readobj -r --expand-relocs %t32 \
# RUN:   | FileCheck %s --check-prefix=LLVM-EXPAND-32 --strict-whitespace --match-full-lines
# RUN: llvm-readelf -r --expand-relocs %t32 \
# RUN:   | FileCheck %s --check-prefix=GNU-32 --strict-whitespace --match-full-lines

#      LLVM-EXPAND-32:Relocations [
# LLVM-EXPAND-32-NEXT:  Section (2) .rel.text {
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x0
# LLVM-EXPAND-32-NEXT:      Type: R_386_NONE (0)
# LLVM-EXPAND-32-NEXT:      Symbol: rel_0 (1)
# LLVM-EXPAND-32-NEXT:      Addend: 0x0
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x1
# LLVM-EXPAND-32-NEXT:      Type: R_386_PC32 (2)
# LLVM-EXPAND-32-NEXT:      Symbol: rel_neg (2)
# LLVM-EXPAND-32-NEXT:      Addend: 0x0
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x5
# LLVM-EXPAND-32-NEXT:      Type: R_386_PLT32 (4)
# LLVM-EXPAND-32-NEXT:      Symbol: rel_pos (3)
# LLVM-EXPAND-32-NEXT:      Addend: 0x0
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:  }
# LLVM-EXPAND-32-NEXT:  Section (3) .rela.text {
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x0
# LLVM-EXPAND-32-NEXT:      Type: R_386_NONE (0)
# LLVM-EXPAND-32-NEXT:      Symbol: rela_0 (4)
# LLVM-EXPAND-32-NEXT:      Addend: 0x0
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x1
# LLVM-EXPAND-32-NEXT:      Type: R_386_PC32 (2)
# LLVM-EXPAND-32-NEXT:      Symbol: rela_neg (5)
# LLVM-EXPAND-32-NEXT:      Addend: 0xFFFFFFFF
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x5
# LLVM-EXPAND-32-NEXT:      Type: R_386_PLT32 (4)
# LLVM-EXPAND-32-NEXT:      Symbol: rela_pos (6)
# LLVM-EXPAND-32-NEXT:      Addend: 0x2
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0xFFFFFFFF
# LLVM-EXPAND-32-NEXT:      Type: R_386_32 (1)
# LLVM-EXPAND-32-NEXT:      Symbol: rela_minneg (7)
# LLVM-EXPAND-32-NEXT:      Addend: 0x80000000
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:    Relocation {
# LLVM-EXPAND-32-NEXT:      Offset: 0x9
# LLVM-EXPAND-32-NEXT:      Type: R_386_GOT32 (3)
# LLVM-EXPAND-32-NEXT:      Symbol: rela_maxpos (8)
# LLVM-EXPAND-32-NEXT:      Addend: 0x7FFFFFFF
# LLVM-EXPAND-32-NEXT:    }
# LLVM-EXPAND-32-NEXT:  }
# LLVM-EXPAND-32-NEXT:]

--- !ELF
FileHeader:
  Class:   ELFCLASS32
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_386
Sections:
  - Name: .text
    Type: SHT_PROGBITS
    Content: '00FFFFFFFF02000000'
  - Name: .rel.text
    Type: SHT_REL
    Info: .text
    Relocations:
      - Offset: 0x0
        Symbol: rel_0
        Type:   R_386_NONE
      - Offset: 0x1
        Symbol: rel_neg
        Type:   R_386_PC32
      - Offset: 0x5
        Symbol: rel_pos
        Type:   R_386_PLT32
  - Name: .rela.text
    Type: SHT_RELA
    Info: .text
    Relocations:
      - Offset: 0x0
        Symbol: rela_0
        Type:   R_386_NONE
        Addend: 0
      - Offset: 0x1
        Symbol: rela_neg
        Type:   R_386_PC32
        Addend: -1
      - Offset: 0x5
        Symbol: rela_pos
        Type:   R_386_PLT32
        Addend: 2
      - Offset: 0xFFFFFFFF
        Symbol: rela_minneg
        Type:   R_386_32
        Addend: -2147483648 ## Min 32-bit signed.
      - Offset: 0x9
        Symbol: rela_maxpos
        Type:   R_386_GOT32
        Addend: 2147483647 ## Max 32-bit signed.
Symbols:
  - Name:    rel_0
    Section: .text
    Value:   0
  - Name:    rel_neg
    Section: .text
    Value:   1
  - Name:    rel_pos
    Section: .text
    Value:   0xFFFFFFFF
  - Name:    rela_0
    Section: .text
    Value:   0
  - Name:    rela_neg
    Section: .text
    Value:   1
  - Name:    rela_pos
    Section: .text
    Value:   2
  - Name:    rela_minneg
    Section: .text
    Value:   3
  - Name:    rela_maxpos
    Section: .text
    Value:   0xFFFFFFFF