lld/test/ELF/gdb-index-ranges-discarded.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   3 # RUN: ld.lld --gdb-index -e main %t.o -o %t
   4 # RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s
   5
   6 # CHECK:      .gdb_index contents:
   7 # CHECK:       Address area offset = 0x28, has 1 entries:
   8 # CHECK-NEXT:    Low/High address = [0x201120, 0x201121) (Size: 0x1), CU id = 0
   9
  10 ## .debug_ranges contains 2 entries. .Lfunc_end0 is defined in the discarded
  11 ## .text.foo. Test we resolve it to a non-zero value, otherwise the address area
  12 ## of .gdb_index will not included [.Lfunc_begin1, .Lfunc_end1).
  13
  14 .section .text.foo,"aex",@progbits
  15 .Lfunc_begin0:
  16   ret
  17 .Lfunc_end0:
  18
  19 .section .text.bar,"ax",@progbits
  20 .Lfunc_begin1:
  21   ret
  22 .Lfunc_end1:
  23
  24 .section .debug_abbrev,"",@progbits
  25   .byte 1         # Abbreviation Code
  26   .byte 17        # DW_TAG_compile_unit
  27   .byte 0         # DW_CHILDREN_no
  28   .byte 85        # DW_AT_ranges
  29   .byte 23        # DW_FORM_sec_offset
  30   .byte 0         # EOM(1)
  31   .byte 0         # EOM(2)
  32   .byte 0
  33
  34 .section .debug_info,"",@progbits
  35 .Lcu_begin0:
  36   .long .Lcu_end0 - .Lcu_begin0 - 4
  37   .short 4        # DWARF version number
  38   .long  0        # Offset Into Abbrev. Section
  39   .byte  8        # Address Size
  40 .Ldie0:
  41   .byte  1        # Abbrev [1] DW_TAG_compile_unit
  42   .long  0        # DW_AT_ranges
  43 .Lcu_end0:
  44
  45 .section .debug_ranges,"",@progbits
  46   .quad .Lfunc_begin0
  47   .quad .Lfunc_end0
  48   .quad .Lfunc_begin1
  49   .quad .Lfunc_end1
  50   .quad 0
  51   .quad 0