linker-synthesized.test 1.38 KB
# RUN: yaml2obj %s -o %t
# RUN: llvm-nm --no-sort %t | FileCheck %s

## We used to be wrong with some linker synthesized symbols.

## We mark __init_array_start as 'd', as consistent with GNU nm >= 2.33 (older GNU
## nm marks it as 't'). See https://sourceware.org/bugzilla/show_bug.cgi?id=24511

# CHECK: d __fini_array_start
# CHECK: d __init_array_start
# CHECK: d __preinit_array_start
# CHECK: B __bss_start
# CHECK: D _edata
# CHECK: B _end

!ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_EXEC
  Machine: EM_X86_64
Sections:
  - Name: .text
    Type: SHT_PROGBITS
    Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
  - Name: .fini_array
    Type: SHT_FINI_ARRAY
    Flags: [ SHF_ALLOC, SHF_WRITE ]
  - Name: .init_array
    Type: SHT_INIT_ARRAY
    Flags: [ SHF_ALLOC, SHF_WRITE ]
  - Name: .preinit_array
    Type: SHT_PREINIT_ARRAY
    Flags: [ SHF_ALLOC, SHF_WRITE ]
  - Name: .data
    Type: SHT_PROGBITS
    Flags: [ SHF_ALLOC, SHF_WRITE ]
  - Name: .bss
    Type: SHT_NOBITS
    Flags: [ SHF_ALLOC, SHF_WRITE ]
Symbols:
  - Name:    __fini_array_start
    Section: .fini_array
  - Name:    __init_array_start
    Section: .init_array
  - Name:    __preinit_array_start
    Section: .preinit_array

  - Name:    __bss_start
    Section: .bss
    Binding: STB_GLOBAL
  - Name:    _edata
    Section: .data
    Binding: STB_GLOBAL
  - Name:    _end
    Section: .bss
    Binding: STB_GLOBAL