reloc-sec-before-relocated.test 1.24 KB
## If the section header index of a SHT_REL[A] section is smaller than the
## section header index of the relocated section, we should handle it properly.
## Normally it is not what compilers would emit, but some custom tools might
## want to use this feature, which is not restricted by ELF gABI.
## GNU ld supports this as well.

# RUN: yaml2obj %s -DTYPE=SHT_RELA -o %t1.o
# RUN: ld.lld -shared %t1.o -o %t1
# RUN: llvm-readelf --relocs %t1 | FileCheck %s

# RUN: yaml2obj %s -DTYPE=SHT_REL -o %t2.o
# RUN: ld.lld -shared %t2.o -o %t2
# RUN: llvm-readelf --relocs %t2 | FileCheck %s

## Check we handle the relocation properly.
# CHECK:      Relocation section '.rela.dyn' at offset 0x238 contains 1 entries:
# CHECK-NEXT:     Offset             Info             Type    Symbol's Value  Symbol's Name + Addend
# CHECK-NEXT: 00000000000022f0  0000000100000001 R_X86_64_64 0000000000000000 foo + 0

--- !ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name:  .relx.data
    Type:  [[TYPE]]
    Info:  .data
    Relocations:
      - Symbol: foo
        Type:   R_X86_64_64
  - Name:  .data
    Type:  SHT_PROGBITS
    Flags: [ SHF_ALLOC, SHF_WRITE ]
Symbols:
  - Name:    foo
    Binding: STB_GLOBAL