mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
eb0c9094ac
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
119 lines
2.7 KiB
YAML
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: ]
|