llvm/test/tools/llvm-dwarfdump/X86/debug_line_dwarf64_large_table.s

   1 ## Test that we can dump the (intact) prologue of a large table which was
   2 ## truncated. Also, make sure we don't get confused by a DWARF64 length which
   3 ## matches one of the reserved initial length values.
   4
   5 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux %s >%t
   6 # RUN: llvm-dwarfdump %t -debug-line 2>&1 | FileCheck %s
   7
   8 # CHECK: debug_line[0x00000000]
   9 # CHECK-NEXT: Line table prologue:
  10 # CHECK-NEXT:     total_length: 0x00000000fffffff0
  11 # CHECK-NEXT:           format: DWARF64
  12 # CHECK-NEXT:          version: 4
  13 # CHECK-NEXT:  prologue_length: 0x0000000000000016
  14 # CHECK:        file_names[ 1]:
  15 # CHECK-NEXT:             name: "file1"
  16 # CHECK-NEXT:        dir_index: 0
  17 # CHECK-NEXT:         mod_time: 0x00000000
  18 # CHECK-NEXT:           length: 0x00000000
  19 # CHECK-NEXT: warning: line table program with offset 0x00000000 has length 0xfffffffc but only 0x0000003a bytes are available
  20
  21 # CHECK:      0x000000000badbeef      1      0      1   0             0       0  is_stmt end_sequence
  22
  23 .section .debug_line,"",@progbits
  24 .long   0xffffffff      # Length of Unit (DWARF-64 format)
  25 .quad   0xfffffff0
  26 .short  4               # DWARF version number
  27 .quad   .Lprologue1_end-.Lprologue1_start # Length of Prologue
  28 .Lprologue1_start:
  29 .byte   1               # Minimum Instruction Length
  30 .byte   1               # Maximum Operations per Instruction
  31 .byte   1               # Default is_stmt
  32 .byte   -5              # Line Base
  33 .byte   14              # Line Range
  34 .byte   1               # Opcode Base
  35 .asciz "dir1"           # Include table
  36 .byte   0
  37 .asciz "file1"          # File table
  38 .byte   0, 0, 0
  39 .byte   0
  40 .Lprologue1_end:
  41 .byte   0, 9, 2         # DW_LNE_set_address
  42 .quad   0x0badbeef
  43 .byte   0, 1, 1         # DW_LNE_end_sequence