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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
## This tests if .debug_loclists.dwo are correctly read if they are part
## of a dwp file.
# RUN: llvm-mc -triple=x86_64-pc-linux -filetype=obj %s --defsym MAIN=0 > %t
# RUN: llvm-mc -triple=x86_64-pc-linux -filetype=obj %s > %t.dwp
# RUN: %lldb %t -o "image lookup -v -s lookup_loclists" -o exit | FileCheck %s
# CHECK-LABEL: image lookup -v -s lookup_loclists
# CHECK: Variable: id = {{.*}}, name = "x0", type = "int", valid ranges = <block>, location = [0x0000000000000000, 0x0000000000000003) -> DW_OP_reg0 RAX,
# CHECK: Variable: id = {{.*}}, name = "x1", type = "int", valid ranges = <block>, location = [0x0000000000000002, 0x0000000000000004) -> DW_OP_reg1 RDX,
## This part is kept in both the main and the dwp file to be able to reference the offsets.
loclists:
nop
nop
.Ltmp1:
lookup_loclists:
nop
.Ltmp2:
nop
.Ltmp3:
nop
.Lloclists_end:
## The main file.
.ifdef MAIN
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 74 # DW_TAG_compile_unit
.byte 0 # DW_CHILDREN_no
.byte 0x76 # DW_AT_dwo_name
.byte 8 # DW_FORM_string
.byte 115 # DW_AT_addr_base
.byte 23 # DW_FORM_sec_offset
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 85 # DW_AT_ranges
.byte 35 # DW_FORM_rnglistx
.byte 116 # DW_AT_rnglists_base
.byte 23 # DW_FORM_sec_offset
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.section .debug_info,"",@progbits
.Lcu_begin0:
.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
.short 5 # DWARF version number
.byte 4 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.quad 1026699901672188186 # DWO id
.byte 1 # Abbrev [1] DW_TAG_compile_unit
.asciz "debug_loclists-dwp.dwo" # DW_AT_dwo_name
.long .Laddr_table_base0 # DW_AT_addr_base
.quad loclists # DW_AT_low_pc
.byte 0 # DW_AT_ranges
.long .Lskel_rnglists_table_base # DW_AT_rnglists_base
.Ldebug_info_end0:
.section .debug_rnglists,"",@progbits
.long .Lskel_rnglist_table_end-.Lskel_rnglist_table_start # Length
.Lskel_rnglist_table_start:
.short 5 # Version
.byte 8 # Address size
.byte 0 # Segment selector size
.long 1 # Offset entry count
.Lskel_rnglists_table_base:
.long .Lskel_ranges0-.Lskel_rnglists_table_base
.Lskel_ranges0:
.byte 7 # DW_RLE_start_length
.quad loclists
.uleb128 .Lloclists_end-loclists
.byte 0 # DW_RLE_end_of_list
.Lskel_rnglist_table_end:
.section .debug_addr,"",@progbits
.long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution
.Ldebug_addr_start0:
.short 5 # DWARF version number
.byte 8 # Address size
.byte 0 # Segment selector size
.Laddr_table_base0:
.quad loclists
.quad .Ltmp1
.Ldebug_addr_end0:
.else
## DWP file starts here.
.section .debug_loclists.dwo,"e",@progbits
## Start the section with an unused table to check that the reading offset
## of the real table is correctly adjusted.
.long .LLLDummyEnd-.LLLDummyVersion # Length of Unit
.LLLDummyVersion:
.short 5 # Version
.byte 8 # Address size
.byte 0 # Segment selector size
.long 0 # Offset entry count
.byte 0 # DW_LLE_end_of_list
.LLLDummyEnd:
.LLLBegin:
.long .Ldebug_loclist_table_end0-.Ldebug_loclist_table_start0 # Length
.Ldebug_loclist_table_start0:
.short 5 # Version
.byte 8 # Address size
.byte 0 # Segment selector size
.long 2 # Offset entry count
.Lloclists_table_base:
.long .Ldebug_loc0-.Lloclists_table_base
.long .Ldebug_loc1-.Lloclists_table_base
.Ldebug_loc0:
.byte 4 # DW_LLE_offset_pair
.uleb128 loclists-loclists
.uleb128 .Ltmp2-loclists
.uleb128 1 # Expression size
.byte 80 # super-register DW_OP_reg0
.byte 0 # DW_LLE_end_of_list
.Ldebug_loc1:
.byte 3 # DW_LLE_startx_length
.uleb128 1
.uleb128 .Ltmp3-.Ltmp1
.uleb128 1 # Expression size
.byte 81 # super-register DW_OP_reg1
.byte 0 # DW_LLE_end_of_list
.Ldebug_loclist_table_end0:
.LLLEnd:
.section .debug_abbrev.dwo,"e",@progbits
.LAbbrevBegin:
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 1 # DW_CHILDREN_yes
.byte 37 # DW_AT_producer
.byte 8 # DW_FORM_string
.byte 19 # DW_AT_language
.byte 5 # DW_FORM_data2
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 2 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 17 # DW_AT_low_pc
.byte 27 # DW_FORM_addrx
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 3 # DW_AT_name
.byte 8 # DW_FORM_string
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 3 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 0x22 # DW_FORM_loclistx
.byte 3 # DW_AT_name
.byte 8 # DW_FORM_string
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 4 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 8 # DW_FORM_string
.byte 62 # DW_AT_encoding
.byte 11 # DW_FORM_data1
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.LAbbrevEnd:
.section .debug_info.dwo,"e",@progbits
.LCUBegin:
.Lcu_begin1:
.long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit
.Ldebug_info_start1:
.short 5 # DWARF version number
.byte 5 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long 0 # Offset Into Abbrev. Section
.quad 1026699901672188186 # DWO id
.byte 1 # Abbrev [1] DW_TAG_compile_unit
.asciz "Hand-written DWARF" # DW_AT_producer
.short 12 # DW_AT_language
.byte 2 # Abbrev [2] DW_TAG_subprogram
.byte 0 # DW_AT_low_pc
.long .Lloclists_end-loclists # DW_AT_high_pc
.asciz "loclists" # DW_AT_name
.long .Lint # DW_AT_type
.byte 3 # Abbrev [3] DW_TAG_formal_parameter
.uleb128 0 # DW_AT_location
.asciz "x0" # DW_AT_name
.long .Lint # DW_AT_type
.byte 3 # Abbrev [3] DW_TAG_formal_parameter
.uleb128 1 # DW_AT_location
.asciz "x1" # DW_AT_name
.long .Lint # DW_AT_type
.byte 0 # End Of Children Mark
.Lint:
.byte 4 # Abbrev [4] DW_TAG_base_type
.asciz "int" # DW_AT_name
.byte 5 # DW_AT_encoding
.byte 4 # DW_AT_byte_size
.byte 0 # End Of Children Mark
.Ldebug_info_end1:
.LCUEnd:
.section .debug_cu_index, "", @progbits
## Header:
.short 5 # Version
.short 0 # Padding
.long 3 # Section count
.long 1 # Unit count
.long 2 # Slot count
## Hash Table of Signatures:
.quad 1026699901672188186
.quad 0
## Parallel Table of Indexes:
.long 1
.long 0
## Table of Section Offsets:
## Row 0:
.long 1 # DW_SECT_INFO
.long 3 # DW_SECT_ABBREV
.long 5 # DW_SECT_LOCLISTS
## Row 1:
.long 0 # Offset in .debug_info.dwo
.long 0 # Offset in .debug_abbrev.dwo
.long .LLLBegin-.debug_loclists.dwo # Offset in .debug_loclists.dwo
## Table of Section Sizes:
.long .LCUEnd-.LCUBegin # Size in .debug_info.dwo
.long .LAbbrevEnd-.LAbbrevBegin # Size in .debug_abbrev.dwo
.long .LLLEnd-.LLLBegin # Size in .debug_loclists.dwo
.endif
|
