llvm/test/tools/llvm-dwarfdump/X86/debug-line.s

   1 ## Show that llvm-dwarfdump dumps the whole .debug_line section when
   2 ## --debug-line is specified.
   3
   4 # RUN: llvm-mc %s -filetype obj -triple x86_64-pc-linux -o %t.o
   5 # RUN: llvm-dwarfdump --debug-line %t.o | FileCheck %s --match-full-lines
   6
   7 # CHECK:      .debug_line contents:
   8 # CHECK-NEXT: debug_line[0x00000000]
   9 # CHECK-NEXT: Line table prologue:
  10 # CHECK-NEXT:     total_length: 0x00000069
  11 # CHECK-NEXT:           format: DWARF32
  12 # CHECK-NEXT:          version: 5
  13 # CHECK-NEXT:     address_size: 8
  14 # CHECK-NEXT:  seg_select_size: 0
  15 # CHECK-NEXT:  prologue_length: 0x0000004c
  16 # CHECK-NEXT:  min_inst_length: 1
  17 # CHECK-NEXT: max_ops_per_inst: 1
  18 # CHECK-NEXT:  default_is_stmt: 1
  19 # CHECK-NEXT:        line_base: -5
  20 # CHECK-NEXT:       line_range: 7
  21 # CHECK-NEXT:      opcode_base: 14
  22 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_copy] = 0
  23 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_advance_pc] = 1
  24 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_advance_line] = 1
  25 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_file] = 1
  26 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_column] = 1
  27 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_negate_stmt] = 0
  28 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_basic_block] = 0
  29 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_const_add_pc] = 0
  30 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
  31 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
  32 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
  33 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_set_isa] = 1
  34 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_unknown_d] = 0
  35 # CHECK-NEXT: include_directories[  0] = "dir1/dir2"
  36 # CHECK-NEXT: file_names[  0]:
  37 # CHECK-NEXT:            name: "file1.c"
  38 # CHECK-NEXT:       dir_index: 2
  39 # CHECK-NEXT:        mod_time: 0x12345678
  40 # CHECK-NEXT:          length: 0x00000010
  41 # CHECK-EMPTY:
  42 # CHECK-NEXT: Address            Line   Column File   ISA Discriminator OpIndex Flags
  43 # CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
  44 # CHECK-NEXT: 0x0000000000000002      1      0      1   0             0       0  is_stmt
  45 # CHECK-NEXT: 0x0000000000000002      1      4      3   0             0       0  is_stmt
  46 # CHECK-NEXT: 0x0000000000000024      1      4      3   5             6       0  basic_block prologue_end epilogue_begin end_sequence
  47 # CHECK-EMPTY:
  48 # CHECK-NEXT: debug_line[0x0000006d]
  49 # CHECK-NEXT: Line table prologue:
  50 # CHECK-NEXT:     total_length: 0x0000001b
  51 # CHECK-NEXT:           format: DWARF32
  52 # CHECK-NEXT:          version: 4
  53 # CHECK-NEXT:  prologue_length: 0x00000015
  54 # CHECK-NEXT:  min_inst_length: 2
  55 # CHECK-NEXT: max_ops_per_inst: 4
  56 # CHECK-NEXT:  default_is_stmt: 0
  57 # CHECK-NEXT:        line_base: 42
  58 # CHECK-NEXT:       line_range: 10
  59 # CHECK-NEXT:      opcode_base: 2
  60 # CHECK-NEXT: standard_opcode_lengths[DW_LNS_copy] = 42
  61 # CHECK-NEXT: include_directories[  1] = "baz"
  62 # CHECK-NEXT: file_names[  1]:
  63 # CHECK-NEXT:            name: "foo.c"
  64 # CHECK-NEXT:       dir_index: 1
  65 # CHECK-NEXT:        mod_time: 0x00000011
  66 # CHECK-NEXT:          length: 0x00000022
  67 # CHECK-EMPTY:
  68 # CHECK-NEXT: debug_line[0x0000008c]
  69
  70 .section .debug_line,"",@progbits
  71     .long .Lunit0_end - .Lunit0_begin ## unit_length
  72 .Lunit0_begin:
  73     .short 5 ## version
  74     .byte 8  ## address_size
  75     .byte 0  ## segment_selector_size
  76     .long .Lheader0_end - .Lheader0_begin ## header_length
  77 .Lheader0_begin:
  78     .byte 1  ## minimum_instruction_length
  79     .byte 1  ## maximum_operations_per_instruction
  80     .byte 1  ## default_is_stmt
  81     .byte -5 ## line_base
  82     .byte 7  ## line_range
  83     ## Use an opcode_base > than the last standard opcode to show that unknown
  84     ## standard opcodes can be handled.
  85     .byte 14 ## opcode_base
  86     .byte 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0 ## standard_opcode_lengths
  87     .byte 2  ## directory_entry_format_count
  88     ## Use two formats to show that only the path is included in the output.
  89     .byte 0x1, 0x8 ## DW_LNCT_path, DW_FORM_string
  90     .byte 0x4, 0x5 ## DW_LNCT_size, DW_FORM_data2
  91     .byte 1  ## directories_count
  92     .asciz "dir1/dir2" ## directory entry 0
  93     .short 0x1234
  94     .byte 4  ## file_name_entry_format_count
  95     .byte 0x4, 0x1E ## DW_LNCT_MD5, DW_FORM_data16
  96     .byte 0x3, 0x6  ## DW_LNCT_timestamp, DW_FORM_data4
  97     .byte 0x2, 0xB  ## DW_LNCT_directory_index, DW_FORM_data1
  98     .byte 0x1, 0x8  ## DW_LNCT_path, DW_FORM_string
  99     .byte 1  ## file_names_count
 100     .quad 0x1111222233334444, 0x5555666677778888 ## file name entry 0
 101     .long 0x12345678
 102     .byte 2
 103     .asciz "file1.c"
 104 .Lheader0_end:
 105     .byte 0x21 ## Special opcode - shows line printed after special opcode.
 106     .byte 0x4  ## DW_LNS_set_file - shows file can be changed to an arbitrary value.
 107     .byte 3
 108     .byte 0x5  ## DW_LNS_set_column - shows column can be changed.
 109     .byte 4
 110     .byte 0x1  ## DW_LNS_copy - shows line printed after copy opcode.
 111     .byte 0x8  ## DW_LNS_const_add_pc - shows address can be changed.
 112     .byte 0xC  ## DW_LNS_set_isa - shows isa register value can be changed.
 113     .byte 5
 114     .byte 0, 0x2, 0x4 ## DW_LNE_set_discriminator - shows discriminator can be changed.
 115     .byte 6
 116     ## These lines all show that the printed boolean register values can be changed.
 117     .byte 0x6  ## DW_LNS_negate_stmt
 118     .byte 0x7  ## DW_LNS_set_basic_block
 119     .byte 0xA  ## DW_LNS_set_prologue_end
 120     .byte 0xB  ## DW_LNS_set_epilogue_begin
 121
 122     .byte 0xD  ## DW_LNS_unknown - shows that unknown opcodes do not affect state.
 123     .byte 0, 0x1, 0x1 ## DW_LNE_end_sequence
 124 .Lunit0_end:
 125
 126 ## Second line table program with version 4 and no sequences.
 127     .long .Lunit1_end - .Lunit1_begin ## unit_length
 128 .Lunit1_begin:
 129     .short 4 ## version
 130     .long .Lheader1_end - .Lheader1_begin ## header_length
 131 .Lheader1_begin:
 132     .byte 2  ## minimum_instruction_length
 133     .byte 4  ## maximum_operations_per_instruction
 134     .byte 0  ## default_is_stmt
 135     .byte 42 ## line_base
 136     .byte 10 ## line_range
 137     .byte 2  ## opcode_base - lower than normal to show this can be handled.
 138     .byte 42 ## standard_opcode_lengths - different to normal.
 139     ## include_directories
 140     .asciz "baz"
 141     .byte 0
 142     ## file_names
 143     .asciz "foo.c"
 144     .byte 1    ## Directory index
 145     .byte 0x11 ## Timestamp
 146     .byte 0x22 ## Length
 147 .Lheader1_end:
 148 .Lunit1_end:
 149
 150 ## Third line table program needed to show that only a single blank line is
 151 ## printed after a program with no sequences. The values in this table are
 152 ## arbitrary.
 153     .long .Lunit2_end - .Lunit2_begin ## unit_length
 154 .Lunit2_begin:
 155     .short 4 ## version
 156     .long .Lheader2_end - .Lheader2_begin ## header_length
 157 .Lheader2_begin:
 158     .byte 1 ## minimum_instruction_length
 159     .byte 2 ## maximum_operations_per_instruction
 160     .byte 1 ## default_is_stmt
 161     .byte 1 ## line_base
 162     .byte 1 ## line_range
 163     .byte 2 ## opcode_base
 164     .byte 1 ## standard_opcode_lengths
 165     ## include_directories
 166     .byte 0
 167     ## file_names
 168     .asciz "bar.c"
 169     .byte 0 ## Directory index
 170     .byte 0 ## Timestamp
 171     .byte 0 ## Length
 172 .Lheader2_end:
 173     .byte 0, 0x1, 0x1 ## DW_LNE_end_sequence
 174 .Lunit2_end: