test/tools/yaml2obj/ELF/section-link.yaml

# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj --sections %t1 | FileCheck %s

# CHECK:      Name: .text
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT:   SHF_ALLOC
# CHECK-NEXT:   SHF_EXECINSTR
# CHECK-NEXT: ]
# CHECK-NEXT: Address:
# CHECK-NEXT: Offset:
# CHECK-NEXT: Size:
# CHECK-NEXT: Link: 12345

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name:            .text
    Type:            SHT_PROGBITS
    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
    Link:            12345

## Check we report an error when an unknown section is referenced via a Link field.

# RUN: not yaml2obj --docnum=2 %s 2>&1 | FileCheck %s --check-prefix=ERR

# ERR:      error: unknown section referenced: '.unknown1' by YAML section '.foo'
# ERR-NEXT: error: unknown section referenced: '.unknown2' by YAML section '(index 2)'
# ERR-NEXT: error: unknown section referenced: '.unknown3' by YAML section '.bar'
# ERR-NEXT: error: unknown section referenced: '.unknown4' by YAML section '(index 4)'

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name: .foo
    Type: SHT_PROGBITS
    Link: .unknown1
  - Type: SHT_PROGBITS
    Link: .unknown2
  - Name: .bar
    Type: SHT_PROGBITS
    Link: .unknown3
  - Type: SHT_PROGBITS
    Link: .unknown4

## Check we link SHT_GROUP to a symbol table by default if it exists.
## Also, check we can set an arbitrary value for sh_link.

# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readobj --sections %t3 | FileCheck %s --check-prefix=GROUP-LINK

# GROUP-LINK:      Name: .group1
# GROUP-LINK:      Link:
# GROUP-LINK-SAME:       3

# GROUP-LINK:      Name: .group2
# GROUP-LINK:      Link:
# GROUP-LINK-SAME:       255

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name: .group1
    Type: SHT_GROUP
    Members:
  - Name: .group2
    Type: SHT_GROUP
    Link: 0xFF
    Members:
Symbols: []

## Check we set SHT_GROUP's link value to 0 when there is no symbol table.

# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: llvm-readobj --sections %t4 | FileCheck %s --check-prefix=GROUP-LINK-NOSYMTAB

# GROUP-LINK-NOSYMTAB:      Name: .group
# GROUP-LINK-NOSYMTAB:      Link:
# GROUP-LINK-NOSYMTAB-SAME:       0

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name: .group
    Type: SHT_GROUP
    Members: