lld/test/ELF/debug-dead-reloc-relocatable.s

   1 # REQUIRES: x86
   2 ## Test we resolve symbolic relocations in .debug_* sections to a tombstone
   3 ## value if the referenced symbol is discarded when linking a relocatable object.
   4
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t1.o
   6 # RUN: ld.lld -r %t1.o %t1.o -o %t2.o
   7 # RUN: llvm-readelf -r -x .debug_ranges %t2.o | FileCheck %s
   8
   9 ## Relocations for a discarded section are changed to R_*_NONE.
  10 # CHECK:      Relocation section '.rela.debug_ranges' at offset [[#%#x,]] contains 4 entries:
  11 # CHECK-NEXT:     Offset          Info        Type       Symbol's Value  Symbol's Name + Addend
  12 # CHECK-NEXT: 0000000000000000  [[#%x,]] R_X86_64_64    0000000000000000 .text.foo + 0
  13 # CHECK-NEXT: 0000000000000008  [[#%x,]] R_X86_64_64    0000000000000000 .text.foo + 1
  14 # CHECK-NEXT: 0000000000000020  [[#%x,]] R_X86_64_NONE
  15 # CHECK-NEXT: 0000000000000028  [[#%x,]] R_X86_64_NONE
  16
  17 ## References to a discarded section are changed to tombstone values.
  18 # CHECK:      Hex dump of section '.debug_ranges':
  19 # CHECK-NEXT: 0x00000000 00000000 00000000 00000000 00000000
  20 # CHECK-NEXT: 0x00000010 00000000 00000000 00000000 00000000
  21 # CHECK-NEXT: 0x00000020 01000000 00000000 01000000 00000000
  22 # CHECK-NEXT: 0x00000030 00000000 00000000 00000000 00000000
  23
  24 .weak foo
  25
  26   .section .text.foo,"axG",@progbits,foo,comdat
  27 .Lfoo:
  28 foo:
  29   ret
  30 .Lfoo_end:
  31
  32   .section .debug_ranges,"",@progbits
  33   .quad .Lfoo
  34   .quad .Lfoo_end
  35   .quad 0
  36   .quad 0