remove-section-dead-symbols.test 3.33 KB
# RUN: yaml2obj %s -o %t
# RUN: llvm-objcopy --remove-section __DATA,C %t %t.copy

# RUN: llvm-readobj --symbols %t.copy | FileCheck %s

# CHECK: Symbols [
# CHECK-NEXT:   Symbol {
# CHECK-NEXT:     Name: _A (1)
# CHECK-NEXT:     Extern
# CHECK-NEXT:     Type: Section (0xE)
# CHECK-NEXT:     Section: __data (0x2)
# CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT:     Flags [ (0x0)
# CHECK-NEXT:     ]
# CHECK-NEXT:     Value: 0x0
# CHECK-NEXT:   }
# CHECK-NEXT: ]

--- !mach-o
FileHeader:
  magic:           0xFEEDFACF
  cputype:         0x01000007
  cpusubtype:      0x00000003
  filetype:        0x00000001
  ncmds:           4
  sizeofcmds:      432
  flags:           0x00002000
  reserved:        0x00000000
LoadCommands:
  - cmd:             LC_SEGMENT_64
    cmdsize:         312
    segname:         ''
    vmaddr:          0
    vmsize:          8
    fileoff:         464
    filesize:        8
    maxprot:         7
    initprot:        7
    nsects:          3
    flags:           0
    Sections:
      - sectname:        __text
        segname:         __TEXT
        addr:            0x0000000000000000
        size:            0
        offset:          0x000001D0
        align:           0
        reloff:          0x00000000
        nreloc:          0
        flags:           0x80000000
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
        content:         ''
      - sectname:        __data
        segname:         __DATA
        addr:            0x0000000000000000
        size:            4
        offset:          0x000001D0
        align:           2
        reloff:          0x00000000
        nreloc:          0
        flags:           0x00000000
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
        content:         '01000000'
      - sectname:        C
        segname:         __DATA
        addr:            0x0000000000000004
        size:            4
        offset:          0x000001D4
        align:           2
        reloff:          0x00000000
        nreloc:          0
        flags:           0x00000000
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
        content:         '02000000'
  - cmd:             LC_VERSION_MIN_MACOSX
    cmdsize:         16
    version:         658944
    sdk:             0
  - cmd:             LC_SYMTAB
    cmdsize:         24
    symoff:          472
    nsyms:           2
    stroff:          504
    strsize:         8
  - cmd:             LC_DYSYMTAB
    cmdsize:         80
    ilocalsym:       0
    nlocalsym:       0
    iextdefsym:      0
    nextdefsym:      2
    iundefsym:       2
    nundefsym:       0
    tocoff:          0
    ntoc:            0
    modtaboff:       0
    nmodtab:         0
    extrefsymoff:    0
    nextrefsyms:     0
    indirectsymoff:  0
    nindirectsyms:   0
    extreloff:       0
    nextrel:         0
    locreloff:       0
    nlocrel:         0
LinkEditData:
  NameList:
    - n_strx:          4
      n_type:          0x0F
      n_sect:          2
      n_desc:          0
      n_value:         0
    - n_strx:          1
      n_type:          0x0F
      n_sect:          3
      n_desc:          0
      n_value:         4
  StringTable:
    - ''
    - _B
    - _A
    - ''
...