1.s
7.67 KB
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
# This assembly file was generated from the following trivial C code:
# $ cat scattered.c
# int bar = 42;
# $ clang -S -arch armv7 -g scattered.c
# $ clang -c -o 1.o scattered.s
#
# Then I edited the debug info bellow to change the DW_AT_location of the bar
# variable from '.long _bar' to '.long _bar + 16' in order to generate a
# scattered reloc (I do not think LLVM will generate scattered relocs in
# debug info by itself).
.section __TEXT,__text,regular,pure_instructions
.ios_version_min 5, 0
.syntax unified
.file 1 "scattered.c"
.section __DATA,__data
.globl _bar @ @bar
.p2align 2
_bar:
.long 42 @ 0x2a
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "clang version 3.9.0 (trunk 259311)" @ string offset=0
.asciz "scattered.c" @ string offset=35
.asciz "/tmp" @ string offset=47
.asciz "bar" @ string offset=52
.asciz "int" @ string offset=56
.section __DWARF,__debug_loc,regular,debug
Lsection_debug_loc:
.section __DWARF,__debug_abbrev,regular,debug
Lsection_abbrev:
.byte 1 @ Abbreviation Code
.byte 17 @ DW_TAG_compile_unit
.byte 1 @ DW_CHILDREN_yes
.byte 37 @ DW_AT_producer
.byte 14 @ DW_FORM_strp
.byte 19 @ DW_AT_language
.byte 5 @ DW_FORM_data2
.byte 3 @ DW_AT_name
.byte 14 @ DW_FORM_strp
.byte 16 @ DW_AT_stmt_list
.byte 6 @ DW_FORM_data4
.byte 27 @ DW_AT_comp_dir
.byte 14 @ DW_FORM_strp
.byte 0 @ EOM(1)
.byte 0 @ EOM(2)
.byte 2 @ Abbreviation Code
.byte 52 @ DW_TAG_variable
.byte 0 @ DW_CHILDREN_no
.byte 3 @ DW_AT_name
.byte 14 @ DW_FORM_strp
.byte 73 @ DW_AT_type
.byte 19 @ DW_FORM_ref4
.byte 63 @ DW_AT_external
.byte 12 @ DW_FORM_flag
.byte 58 @ DW_AT_decl_file
.byte 11 @ DW_FORM_data1
.byte 59 @ DW_AT_decl_line
.byte 11 @ DW_FORM_data1
.byte 2 @ DW_AT_location
.byte 10 @ DW_FORM_block1
.byte 0 @ EOM(1)
.byte 0 @ EOM(2)
.byte 3 @ Abbreviation Code
.byte 36 @ DW_TAG_base_type
.byte 0 @ DW_CHILDREN_no
.byte 3 @ DW_AT_name
.byte 14 @ DW_FORM_strp
.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)
.section __DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
.long 52 @ Length of Unit
.short 2 @ DWARF version number
Lset0 = Lsection_abbrev-Lsection_abbrev @ Offset Into Abbrev. Section
.long Lset0
.byte 4 @ Address Size (in bytes)
.byte 1 @ Abbrev [1] 0xb:0x2d DW_TAG_compile_unit
.long 0 @ DW_AT_producer
.short 12 @ DW_AT_language
.long 35 @ DW_AT_name
Lset1 = Lline_table_start0-Lsection_line @ DW_AT_stmt_list
.long Lset1
.long 47 @ DW_AT_comp_dir
.byte 2 @ Abbrev [2] 0x1e:0x12 DW_TAG_variable
.long 52 @ DW_AT_name
.long 48 @ DW_AT_type
.byte 1 @ DW_AT_external
.byte 1 @ DW_AT_decl_file
.byte 1 @ DW_AT_decl_line
.byte 5 @ DW_AT_location
.byte 3
.long _bar + 16
.byte 3 @ Abbrev [3] 0x30:0x7 DW_TAG_base_type
.long 56 @ DW_AT_name
.byte 5 @ DW_AT_encoding
.byte 4 @ DW_AT_byte_size
.byte 0 @ End Of Children Mark
.section __DWARF,__debug_ranges,regular,debug
Ldebug_range:
.section __DWARF,__debug_macinfo,regular,debug
.byte 0 @ End Of Macro List Mark
.section __DWARF,__apple_names,regular,debug
Lnames_begin:
.long 1212240712 @ Header Magic
.short 1 @ Header Version
.short 0 @ Header Hash Function
.long 1 @ Header Bucket Count
.long 1 @ Header Hash Count
.long 12 @ Header Data Length
.long 0 @ HeaderData Die Offset Base
.long 1 @ HeaderData Atom Count
.short 1 @ DW_ATOM_die_offset
.short 6 @ DW_FORM_data4
.long 0 @ Bucket 0
.long 193487034 @ Hash in Bucket 0
.long LNames0-Lnames_begin @ Offset in Bucket 0
LNames0:
.long 52 @ bar
.long 1 @ Num DIEs
.long 30
.long 0
.section __DWARF,__apple_objc,regular,debug
Lobjc_begin:
.long 1212240712 @ Header Magic
.short 1 @ Header Version
.short 0 @ Header Hash Function
.long 1 @ Header Bucket Count
.long 0 @ Header Hash Count
.long 12 @ Header Data Length
.long 0 @ HeaderData Die Offset Base
.long 1 @ HeaderData Atom Count
.short 1 @ DW_ATOM_die_offset
.short 6 @ DW_FORM_data4
.long -1 @ Bucket 0
.section __DWARF,__apple_namespac,regular,debug
Lnamespac_begin:
.long 1212240712 @ Header Magic
.short 1 @ Header Version
.short 0 @ Header Hash Function
.long 1 @ Header Bucket Count
.long 0 @ Header Hash Count
.long 12 @ Header Data Length
.long 0 @ HeaderData Die Offset Base
.long 1 @ HeaderData Atom Count
.short 1 @ DW_ATOM_die_offset
.short 6 @ DW_FORM_data4
.long -1 @ Bucket 0
.section __DWARF,__apple_types,regular,debug
Ltypes_begin:
.long 1212240712 @ Header Magic
.short 1 @ Header Version
.short 0 @ Header Hash Function
.long 1 @ Header Bucket Count
.long 1 @ Header Hash Count
.long 20 @ Header Data Length
.long 0 @ HeaderData Die Offset Base
.long 3 @ HeaderData Atom Count
.short 1 @ DW_ATOM_die_offset
.short 6 @ DW_FORM_data4
.short 3 @ DW_ATOM_die_tag
.short 5 @ DW_FORM_data2
.short 4 @ DW_ATOM_type_flags
.short 11 @ DW_FORM_data1
.long 0 @ Bucket 0
.long 193495088 @ Hash in Bucket 0
.long Ltypes0-Ltypes_begin @ Offset in Bucket 0
Ltypes0:
.long 56 @ int
.long 1 @ Num DIEs
.long 48
.short 36
.byte 0
.long 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0: