lld/test/ELF/gdb-index-empty.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s
   3 # RUN: ld.lld --gdb-index --gc-sections -o %t2 %t
   4 # RUN: llvm-dwarfdump -gdb-index %t2 | FileCheck %s
   5
   6 # CHECK: Address area offset = 0x28, has 0 entries:
   7
   8 # Generated with: (clang r302976)
   9 # echo "void _start() { __builtin_unreachable(); }" | \
  10 # clang -Os -g -S -o gdb-index-empty.s -x c - -Xclang -fdebug-compilation-dir -Xclang .
  11
  12 .text
  13 .globl _start
  14 .type _start,@function
  15 _start:
  16 .Lfunc_begin0:
  17 .Lfunc_end0:
  18
  19 .section .debug_abbrev,"",@progbits
  20  .byte 1                       # Abbreviation Code
  21  .byte 17                      # DW_TAG_compile_unit
  22  .byte 1                       # DW_CHILDREN_yes
  23  .byte 37                      # DW_AT_producer
  24  .byte 14                      # DW_FORM_strp
  25  .byte 19                      # DW_AT_language
  26  .byte 5                       # DW_FORM_data2
  27  .byte 3                       # DW_AT_name
  28  .byte 14                      # DW_FORM_strp
  29  .byte 16                      # DW_AT_stmt_list
  30  .byte 23                      # DW_FORM_sec_offset
  31  .byte 27                      # DW_AT_comp_dir
  32  .byte 14                      # DW_FORM_strp
  33  .byte 17                      # DW_AT_low_pc
  34  .byte 1                       # DW_FORM_addr
  35  .byte 18                      # DW_AT_high_pc
  36  .byte 6                       # DW_FORM_data4
  37  .byte 0                       # EOM(1)
  38  .byte 0                       # EOM(2)
  39  .byte 2                       # Abbreviation Code
  40  .byte 46                      # DW_TAG_subprogram
  41  .byte 0                       # DW_CHILDREN_no
  42  .byte 17                      # DW_AT_low_pc
  43  .byte 1                       # DW_FORM_addr
  44  .byte 18                      # DW_AT_high_pc
  45  .byte 6                       # DW_FORM_data4
  46  .byte 64                      # DW_AT_frame_base
  47  .byte 24                      # DW_FORM_exprloc
  48  .byte 3                       # DW_AT_name
  49  .byte 14                      # DW_FORM_strp
  50  .byte 58                      # DW_AT_decl_file
  51  .byte 11                      # DW_FORM_data1
  52  .byte 59                      # DW_AT_decl_line
  53  .byte 11                      # DW_FORM_data1
  54  .byte 63                      # DW_AT_external
  55  .byte 25                      # DW_FORM_flag_present
  56  .byte 0                       # EOM(1)
  57  .byte 0                       # EOM(2)
  58  .byte 0                       # EOM(3)
  59
  60 .section .debug_info,"",@progbits
  61  .long 60                        # Length of Unit
  62  .short 4                        # DWARF version number
  63  .long .debug_abbrev             # Offset Into Abbrev. Section
  64  .byte 8                         # Address Size (in bytes)
  65  .byte 1                         # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit
  66  .long 0                         # DW_AT_producer
  67  .short 12                       # DW_AT_language
  68  .long 0                         # DW_AT_name
  69  .long 0                         # DW_AT_stmt_list
  70  .long 0                         # DW_AT_comp_dir
  71  .quad .Lfunc_begin0             # DW_AT_low_pc
  72  .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
  73  .byte 2                         # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram
  74  .quad .Lfunc_begin0             # DW_AT_low_pc
  75  .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
  76  .byte 1                         # DW_AT_frame_base
  77  .byte 87
  78  .long 0                         # DW_AT_name
  79  .byte 1                         # DW_AT_decl_file
  80  .byte 1                         # DW_AT_decl_line
  81  .byte 0                         # End Of Children Mark