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

   1 ## Test cases when we run into the end of section while parsing a line table
   2 ## prologue.
   3
   4 # RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj --defsym CASE=0 -o %t0
   5 # RUN: llvm-dwarfdump -debug-line %t0 2>&1 | FileCheck %s --check-prefixes=ALL,C0
   6
   7 # RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj --defsym CASE=1 -o %t1
   8 # RUN: llvm-dwarfdump -debug-line %t1 2>&1 | FileCheck %s --check-prefixes=ALL,C1
   9
  10 # RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj --defsym CASE=2 -o %t2
  11 # RUN: llvm-dwarfdump -debug-line %t2 2>&1 | FileCheck %s --check-prefixes=ALL,C2
  12
  13 # RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj --defsym CASE=3 -o %t3
  14 # RUN: llvm-dwarfdump -debug-line %t3 2>&1 | FileCheck %s --check-prefixes=ALL,OK
  15
  16 # ALL:      debug_line[0x00000000]
  17 # C0-NEXT:  warning: parsing line table prologue at 0x00000000 found an invalid directory or file table description at 0x00000027
  18 # C0-NEXT:  warning: failed to parse entry content descriptors: unexpected end of data at offset 0x27
  19 # C1-NEXT:  warning: parsing line table prologue at 0x00000000 found an invalid directory or file table description at 0x0000002a
  20 # C1-NEXT:  warning: failed to parse entry content descriptors: unable to decode LEB128 at offset 0x0000002a: malformed uleb128, extends past end
  21 # C2-NEXT:  warning: parsing line table prologue at 0x00000000 found an invalid directory or file table description at 0x0000002b
  22 # C2-NEXT:  warning: failed to parse entry content descriptors: unable to decode LEB128 at offset 0x0000002b: malformed uleb128, extends past end
  23 # ALL:      include_directories[  0] = "/tmp"
  24 # OK:       file_names[  0]:
  25 # OK-NEXT:             name: "foo"
  26 # OK-NEXT:        dir_index: 0
  27
  28 .section .debug_line,"",@progbits
  29 .long   .Lend-.Lstart   # Length of Unit
  30 .Lstart:
  31 .short  5               # DWARF version number
  32 .byte   8               # Address Size
  33 .byte   0               # Segment Selector Size
  34 .long   .Lprologue_end-.Lprologue_start  # Length of Prologue
  35 .Lprologue_start:
  36 .byte   1               # Minimum Instruction Length
  37 .byte   1               # Maximum Operations per Instruction
  38 .byte   1               # Default is_stmt
  39 .byte   -5              # Line Base
  40 .byte   14              # Line Range
  41 .byte   13              # Opcode Base
  42 .byte   0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1 # Standard Opcode Lengths
  43 # Directory table format
  44 .byte   1               # One element per directory entry
  45 .byte   1               # DW_LNCT_path
  46 .byte   0x08            # DW_FORM_string
  47 # Directory table entries
  48 .byte   1               # 1 directory
  49 .asciz  "/tmp"
  50 # File table format
  51 .if CASE >= 1
  52 .byte   2               # 2 elements per file entry
  53 .byte   1               # DW_LNCT_path
  54 .byte   8               # DW_FORM_string
  55 .if CASE >= 2
  56 .byte   2               # DW_LNCT_directory_index
  57 .if CASE >= 3
  58 .byte   11              # DW_FORM_data1
  59 # File table entries
  60 .byte   1
  61 .asciz  "foo"
  62 .byte   0
  63 .endif
  64 .endif
  65 .endif
  66
  67 .Lprologue_end:
  68 .Lend: