llvm-6502/test/Object/yaml2obj-elf-rel.yaml
Simon Atanasyan eb0c9094ac [yaml2obj][ELF] ELF Relocations Support.
The patch implements support for both relocation record formats: Elf_Rel
and Elf_Rela. It is possible to define relocation against symbol only.
Relocations against sections will be implemented later. Now yaml2obj
recognizes X86_64, MIPS and Hexagon relocation types.

Example of relocation section specification:
Sections:
- Name: .text
  Type: SHT_PROGBITS
  Content: "0000000000000000"
  AddressAlign: 16
  Flags: [SHF_ALLOC]

- Name: .rel.text
  Type: SHT_REL
  Info: .text
  AddressAlign: 4
  Relocations:
    - Offset: 0x1
      Symbol: glob1
      Type: R_MIPS_32
    - Offset: 0x2
      Symbol: glob2
      Type: R_MIPS_CALL16

The patch reviewed by Michael Spencer, Sean Silva, Shankar Easwaran.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206017 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-11 04:13:39 +00:00

119 lines
2.7 KiB
YAML

# RUN: yaml2obj -format=elf %s | llvm-readobj -sections -relocations - | FileCheck %s
!ELF
FileHeader: !FileHeader
Class: ELFCLASS32
Data: ELFDATA2MSB
Type: ET_REL
Machine: EM_MIPS
Sections:
- Name: .text
Type: SHT_PROGBITS
Content: "0000000000000000"
AddressAlign: 16
Flags: [SHF_ALLOC]
- Name: .rel.text
Type: SHT_REL
Info: .text
AddressAlign: 4
Relocations:
- Offset: 0x1
Symbol: glob1
Type: R_MIPS_32
- Offset: 0x1
Symbol: glob2
Type: R_MIPS_CALL16
- Offset: 0x2
Symbol: loc1
Type: R_MIPS_LO16
- Name: .rela.text
Type: SHT_RELA
Link: .symtab
Info: .text
AddressAlign: 4
Relocations:
- Offset: 0x1
Addend: 1
Symbol: glob1
Type: R_MIPS_32
- Offset: 0x1
Addend: 2
Symbol: glob2
Type: R_MIPS_CALL16
- Offset: 0x2
Addend: 3
Symbol: loc1
Type: R_MIPS_LO16
Symbols:
Local:
- Name: loc1
- Name: loc2
Global:
- Name: glob1
Section: .text
Value: 0x0
Size: 4
- Name: glob2
Weak:
- Name: weak1
# CHECK: Section {
# CHECK-NEXT: Index: 0
# CHECK: }
# CHECK: Section {
# CHECK-NEXT: Index: 1
# CHECK-NEXT: Name: .text (1)
# CHECK: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 2
# CHECK-NEXT: Name: .rel.text (7)
# CHECK-NEXT: Type: SHT_REL (0x9)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x0
# CHECK-NEXT: Offset: 0x160
# CHECK-NEXT: Size: 24
# CHECK-NEXT: Link: 4
# CHECK-NEXT: Info: 1
# CHECK-NEXT: AddressAlignment: 4
# CHECK-NEXT: EntrySize: 8
# CHECK-NEXT: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 3
# CHECK-NEXT: Name: .rela.text (17)
# CHECK-NEXT: Type: SHT_RELA (0x4)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x0
# CHECK-NEXT: Offset: 0x180
# CHECK-NEXT: Size: 36
# CHECK-NEXT: Link: 4
# CHECK-NEXT: Info: 1
# CHECK-NEXT: AddressAlignment: 4
# CHECK-NEXT: EntrySize: 12
# CHECK-NEXT: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 4
# CHECK-NEXT: Name: .symtab (28)
# CHECK: }
# CHECK-NEXT: Section {
# CHECK-NEXT: Index: 5
# CHECK-NEXT: Name: .strtab (36)
# CHECK: }
# CHECK: Relocations [
# CHECK-NEXT: Section (2) .rel.text {
# CHECK-NEXT: 0x1 R_MIPS_32 glob1 0x0
# CHECK-NEXT: 0x1 R_MIPS_CALL16 glob2 0x0
# CHECK-NEXT: 0x2 R_MIPS_LO16 loc1 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Section (3) .rela.text {
# CHECK-NEXT: 0x1 R_MIPS_32 glob1 0x1
# CHECK-NEXT: 0x1 R_MIPS_CALL16 glob2 0x2
# CHECK-NEXT: 0x2 R_MIPS_LO16 loc1 0x3
# CHECK-NEXT: }
# CHECK-NEXT: ]