test/DebugInfo/X86/dwarfdump-line-only.s

   1 # Test object to verify dwarfdump handles dumping a DWARF v5 line table
   2 # without an associated unit.
   3 #
   4 # RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o - | \
   5 # RUN: llvm-dwarfdump -v - | FileCheck %s
   6
   7         .section .text
   8         # Dummy function
   9 foo:    ret
  10
  11         .section .debug_line,"",@progbits
  12 # CHECK-LABEL: .debug_line contents:
  13
  14 # DWARF v5 line-table header.
  15 LH_5_start:
  16         .long   LH_5_end-LH_5_version   # Length of Unit (DWARF-32 format)
  17 LH_5_version:
  18         .short  5               # DWARF version number
  19         .byte   8               # Address Size
  20         .byte   0               # Segment Selector Size
  21         .long   LH_5_header_end-LH_5_params     # Length of Prologue
  22 LH_5_params:
  23         .byte   1               # Minimum Instruction Length
  24         .byte   1               # Maximum Operations per Instruction
  25         .byte   1               # Default is_stmt
  26         .byte   -5              # Line Base
  27         .byte   14              # Line Range
  28         .byte   13              # Opcode Base
  29         .byte   0               # Standard Opcode Lengths
  30         .byte   1
  31         .byte   1
  32         .byte   1
  33         .byte   1
  34         .byte   0
  35         .byte   0
  36         .byte   0
  37         .byte   1
  38         .byte   0
  39         .byte   0
  40         .byte   1
  41         # Directory table format
  42         .byte   1               # One element per directory entry
  43         .byte   1               # DW_LNCT_path
  44         .byte   0x0e            # DW_FORM_strp (-> .debug_str)
  45         # Directory table entries
  46         .byte   2               # Two directory entries
  47         .long   str_D1
  48         .long   str_D2
  49         # File table format
  50         .byte   4               # Four elements per file entry
  51         .byte   2               # DW_LNCT_directory_index
  52         .byte   0x0b            # DW_FORM_data1
  53         .byte   1               # DW_LNCT_path
  54         .byte   0x1f            # DW_FORM_line_strp (-> .debug_line_str)
  55         .byte   3               # DW_LNCT_timestamp
  56         .byte   0x0f            # DW_FORM_udata
  57         .byte   4               # DW_LNCT_size
  58         .byte   0x0f            # DW_FORM_udata
  59         # File table entries
  60         .byte   2               # Two file entries
  61         .byte   1
  62         .long   ls_F1
  63         .byte   0x51
  64         .byte   0x52
  65         .byte   0
  66         .long   ls_F2
  67         .byte   0x53
  68         .byte   0x54
  69 LH_5_header_end:
  70         # Minimal line number program with an address in it, which shows
  71         # we picked up the address size from the line-table header.
  72         .byte   0
  73         .byte   9
  74         .byte   2               # DW_LNE_set_address
  75         .quad   .text
  76         .byte   0
  77         .byte   1
  78         .byte   1               # DW_LNE_end_sequence
  79 LH_5_end:
  80
  81         .section .debug_str,"MS",@progbits,1
  82 str_D1: .asciz  "Directory1"
  83 str_D2: .asciz  "Directory2"
  84
  85         .section .debug_line_str,"MS",@progbits,1
  86 ls_F1:  .asciz "File1"
  87 ls_F2:  .asciz "File2"
  88
  89 # CHECK: Line table prologue:
  90 # CHECK: version: 5
  91 # CHECK: address_size: 8
  92 # CHECK: seg_select_size: 0
  93 # CHECK: max_ops_per_inst: 1
  94 # CHECK: include_directories[  0] = .debug_str[0x00000000] = "Directory1"
  95 # CHECK: include_directories[  1] = .debug_str[0x0000000b] = "Directory2"
  96 # CHECK-NOT: include_directories
  97 # CHECK: file_names[  0]:
  98 # CHECK-NEXT: name: .debug_line_str[0x00000000] = "File1"
  99 # CHECK-NEXT: dir_index: 1
 100 # CHECK-NEXT: mod_time: 0x00000051
 101 # CHECK-NEXT: length: 0x00000052
 102 # CHECK: file_names[  1]:
 103 # CHECK-NEXT: name: .debug_line_str[0x00000006] = "File2"
 104 # CHECK-NEXT: dir_index: 0
 105 # CHECK-NEXT: mod_time: 0x00000053
 106 # CHECK-NEXT: length: 0x00000054
 107 # CHECK-NOT: file_names
 108 # CHECK: 0x0000000000000000 {{.*}} is_stmt end_sequence