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