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
|
# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
# RUN: not llvm-dwarfdump -v %t.o 2>&1 | FileCheck %s
#
# Test object to verify that llvm-dwarfdump handles an invalid string offsets
# table.
#
# A rudimentary abbrev section.
.section .debug_abbrev,"",@progbits
.byte 0x01 # Abbrev code
.byte 0x11 # DW_TAG_compile_unit
.byte 0x00 # DW_CHILDREN_no
.byte 0x72 # DW_AT_str_offsets_base
.byte 0x17 # DW_FORM_sec_offset
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x00 # EOM(3)
# A rudimentary compile unit to convince dwarfdump that we are dealing with a
# DWARF v5 string offsets table.
.section .debug_info,"",@progbits
# DWARF v5 32 bit CU header.
.long CU1_end-CU1_begin # Length of Unit
CU1_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.long 0 # DW_AT_str_offsets_base
CU1_end:
# DWARF v5 64 bit CU header.
.long 0xffffffff
.quad CU2_end-CU2_begin # Length of Unit
CU2_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.quad .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.quad 0 # DW_AT_str_offsets_base
CU2_end:
.long CU3_end-CU3_begin # Length of Unit
CU3_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.quad .str_off0 # DW_AT_str_offsets_base
CU3_end:
.long CU4_end-CU4_begin # Length of Unit
CU4_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.quad .str_off1 # DW_AT_str_offsets_base
CU4_end:
.long CU5_end-CU5_begin # Length of Unit
CU5_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.long .str_off2_begin # DW_AT_str_offsets_base
CU5_end:
.long CU6_end-CU6_begin # Length of Unit
CU6_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.long .str_off3_begin # DW_AT_str_offsets_base
CU6_end:
.long 0xffffffff
.quad CU7_end-CU7_begin # Length of Unit
CU7_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.quad .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.quad .str_off4_begin # DW_AT_str_offsets_base
CU7_end:
.long CU8_end-CU8_begin # Length of Unit
CU8_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.long .str_off_end+16 # DW_AT_str_offsets_base
CU8_end:
.long 0xffffffff
.quad CU9_end-CU9_begin # Length of Unit
CU9_begin:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.quad .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbreviation code: DW_TAG_compile_unit
.quad .str_off_end+8 # DW_AT_str_offsets_base
CU9_end:
.section .debug_str_offsets,"",@progbits
# Invalid length
.long 0xfffffff4
.short 5 # DWARF version
.short 0 # Padding
.str_off0:
.long 0
# Length beyond section bounds
.long .str_off_end-.str_off1+8
.short 5 # DWARF version
.short 0 # Padding
.str_off1:
.long 0
# Length intrudes on following unit
.long .str_off2_end-.str_off2_begin+8
.short 5 # DWARF version
.short 0 # Padding
.str_off2_begin:
.long 0
.str_off2_end:
# Plain contribution, no errors here
.long .str_off3_end-.str_off3_begin
.short 5 # DWARF version
.short 0 # Padding
.str_off3_begin:
.long 0
.str_off3_end:
# 32 bit contribution referenced from a 64 bit unit
.long .str_off4_end-.str_off4_begin
.short 5 # DWARF version
.short 0 # Padding
.str_off4_begin:
.long 0
.str_off4_end:
.str_off_end:
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 32 bit header prefix
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 64 bit header prefix
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: invalid length
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: length exceeds section size
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: 32 bit contribution referenced from a 64 bit unit
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
# CHECK: error: overlapping contributions to string offsets table in section .debug_str_offsets.
|
