# Tests that the linker is able to read .gnu.linkonce sections and link them
# appropriately. The testcase has been created by using the following source
# code. This test checks that the linker produces an undefined error.
# linkoncea.s
#        .section .gnu.linkonce.d.dummy,"aw"
#bar:
#        .long    0
# linkonceb.s
#        .section .gnu.linkonce.d.dummy,"aw"
#        .global foo
#foo:
#        .long    0
#        .section .blah, "aw"
#        .long    foo
#RUN: yaml2obj -format=elf -docnum 1 %s -o %t.linkonce1a.o
#RUN: yaml2obj -format=elf -docnum 2 %s -o %t.linkonce1b.o
#RUN: not lld -flavor old-gnu -target x86_64 %t.linkonce1a.o %t.linkonce1b.o \
#RUN:  --output-filetype=yaml -o %t2.out.yaml 2>&1 | FileCheck \
#RUN: -check-prefix=UNDEFS %s
#RUN: not lld -flavor old-gnu -target x86_64 %t.linkonce1a.o %t.linkonce1b.o \
#RUN: -o %t2.out 2>&1 | FileCheck -check-prefix=UNDEFS %s
#UNDEFS: Undefined symbol: {{.*}} foo
---
FileHeader:
  Class:           ELFCLASS64
  Data:            ELFDATA2LSB
  Type:            ET_REL
  Machine:         EM_X86_64
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x0000000000000004
    Content:         ''
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000004
    Content:         ''
  - Name:            .bss
    Type:            SHT_NOBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000004
  - Name:            .gnu.linkonce.d.dummy
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         '00000000'
Symbols:
  Local:
    - Name:            .text
      Type:            STT_SECTION
      Section:         .text
    - Name:            .data
      Type:            STT_SECTION
      Section:         .data
    - Name:            .bss
      Type:            STT_SECTION
      Section:         .bss
    - Name:            .gnu.linkonce.d.dummy
      Type:            STT_SECTION
      Section:         .gnu.linkonce.d.dummy
    - Name:            bar
      Section:         .gnu.linkonce.d.dummy
...
---
FileHeader:
  Class:           ELFCLASS64
  Data:            ELFDATA2LSB
  OSABI:           ELFOSABI_GNU
  Type:            ET_REL
  Machine:         EM_X86_64
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    AddressAlign:    0x0000000000000004
    Content:         ''
  - Name:            .data
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000004
    Content:         ''
  - Name:            .bss
    Type:            SHT_NOBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000004
  - Name:            .gnu.linkonce.d.dummy
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         '00000000'
  - Name:            .blah
    Type:            SHT_PROGBITS
    Flags:           [ SHF_WRITE, SHF_ALLOC ]
    AddressAlign:    0x0000000000000001
    Content:         '00000000'
  - Name:            .rela.blah
    Type:            SHT_RELA
    Link:            .symtab
    AddressAlign:    0x0000000000000008
    Info:            .blah
    Relocations:
      - Offset:          0x0000000000000000
        Symbol:          foo
        Type:            R_X86_64_32
Symbols:
  Local:
    - Name:            .text
      Type:            STT_SECTION
      Section:         .text
    - Name:            .data
      Type:            STT_SECTION
      Section:         .data
    - Name:            .bss
      Type:            STT_SECTION
      Section:         .bss
    - Name:            .gnu.linkonce.d.dummy
      Type:            STT_SECTION
      Section:         .gnu.linkonce.d.dummy
    - Name:            .blah
      Type:            STT_SECTION
      Section:         .blah
  Global:
    - Name:            foo
      Section:         .gnu.linkonce.d.dummy
...