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
|
## Check that obj2yaml is able to dump a normal object which
## contains the SHT_SYMTAB_SHNDX section and symbols with
## section index == SHN_XINDEX.
# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: obj2yaml %t1 | FileCheck %s --check-prefix=CASE1
# CASE1: --- !ELF
# CASE1-NEXT: FileHeader:
# CASE1-NEXT: Class: ELFCLASS64
# CASE1-NEXT: Data: ELFDATA2LSB
# CASE1-NEXT: Type: ET_REL
# CASE1-NEXT: Sections:
# CASE1-NEXT: - Name: bar
# CASE1-NEXT: Type: SHT_PROGBITS
# CASE1-NEXT: - Name: .symtab_shndx
# CASE1-NEXT: Type: SHT_SYMTAB_SHNDX
# CASE1-NEXT: Link: .symtab
# CASE1-NEXT: Entries: [ 0, 1, 2 ]
# CASE1-NEXT: Symbols:
# CASE1-NEXT: - Name: bar
# CASE1-NEXT: Type: STT_SECTION
# CASE1-NEXT: Index: SHN_XINDEX
# CASE1-NEXT: - Name: .symtab_shndx
# CASE1-NEXT: Type: STT_SECTION
# CASE1-NEXT: Index: SHN_XINDEX
# CASE1-NEXT: ...
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 1, 2 ]
Link: .symtab
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj is unable to dump an object, which has
## symbols with section index == SHN_XINDEX, but no SHT_SYMTAB_SHNDX section.
# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: not obj2yaml %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=CASE2
# CASE2: Error reading file: [[FILE]]: found an extended symbol index (1), but unable to locate the extended symbol index table
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj is unable to dump an object, which has symbols with
## section index == SHN_XINDEX, but SHT_SYMTAB_SHNDX table contains invalid indices
## that are larger than total number of the sections.
# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: not obj2yaml %t3 2>&1 | FileCheck %s -DFILE=%t3 --check-prefix=CASE3
# CASE3: Error reading file: [[FILE]]: invalid section index: 254
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 254 ]
Link: .symtab
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check that yaml2obj is unable to dump an object, which has symbols with
## section index == SHN_XINDEX, but SHT_SYMTAB_SHNDX table contains more
## entries than the number of symbols in .symtab.
# RUN: yaml2obj --docnum=4 %s -o %t4
# RUN: not obj2yaml %t4 2>&1 | FileCheck %s -DFILE=%t4 --check-prefix=CASE4
## CASE4: Error reading file: [[FILE]]: unable to read extended section indexes: SHT_SYMTAB_SHNDX has 3 entries, but the symbol table associated has 2
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 1, 2 ]
Link: .symtab
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## ELF gABI allows having multiple SHT_SYMTAB_SHNDX sections.
## Only one is allowed to be linked with a corresponding symbol table section though.
## Check we report an error when multiple SHT_SYMTAB_SHNDX sections are linked
## to the same symbol table.
# RUN: yaml2obj --docnum=5 %s -o %t5
# RUN: not obj2yaml %t5 2>&1 | FileCheck %s -DFILE=%t5 --check-prefix=CASE5
# CASE5: Error reading file: [[FILE]]: multiple SHT_SYMTAB_SHNDX sections are linked to the same symbol table with index 5
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .symtab_shndx1
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 1 ]
EntSize: 4
Link: .symtab
- Name: .symtab_shndx2
Type: SHT_SYMTAB_SHNDX
Entries: [ 0, 2 ]
Link: [[LINK=.symtab]]
Symbols:
- Type: STT_SECTION
Index: SHN_XINDEX
DynamicSymbols:
- Type: STT_SECTION
Index: SHN_XINDEX
## Check it is possible to dump an object that has multiple SHT_SYMTAB_SHNDX sections.
## Check that yaml2obj can dump the object and dynamic symbols properly when
## the SHT_SYMTAB_SHNDX section is associated with a SHT_DYNSYM section.
# RUN: yaml2obj --docnum=5 -DLINK=.dynsym %s -o %t5.multiple
# RUN: obj2yaml %t5.multiple | FileCheck %s --check-prefix=MULTIPLE-SYMTAB
# MULTIPLE-SYMTAB: - Name: .symtab_shndx1
# MULTIPLE-SYMTAB-NEXT: Type: SHT_SYMTAB_SHNDX
# MULTIPLE-SYMTAB-NEXT: Link: .symtab
# MULTIPLE-SYMTAB: - Name: .symtab_shndx2
# MULTIPLE-SYMTAB-NEXT: Type: SHT_SYMTAB_SHNDX
# MULTIPLE-SYMTAB-NEXT: Link: .dynsym
# MULTIPLE-SYMTAB: Symbols:
# MULTIPLE-SYMTAB-NEXT: - Name: .symtab_shndx1
# MULTIPLE-SYMTAB-NEXT: Type: STT_SECTION
# MULTIPLE-SYMTAB-NEXT: Index: SHN_XINDEX
# MULTIPLE-SYMTAB-NEXT: DynamicSymbols:
# MULTIPLE-SYMTAB-NEXT: - Name: .symtab_shndx2
# MULTIPLE-SYMTAB-NEXT: Type: STT_SECTION
# MULTIPLE-SYMTAB-NEXT: Index: SHN_XINDEX
## Check that yaml2obj can't dump the object if SHT_SYMTAB_SHNDX is
## not associated with a SHT_SYMTAB section (this case is illegal).
# RUN: yaml2obj --docnum=6 %s -o %t6
# RUN: not obj2yaml %t6 2>&1 | FileCheck %s -DFILE=%t6 --check-prefix=CASE6
# CASE6: Error reading file: [[FILE]]: unable to read extended section indexes: SHT_SYMTAB_SHNDX section is linked with SHT_PROGBITS section (expected SHT_SYMTAB/SHT_DYNSYM)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Entries: [ 0 ]
Link: .foo
- Name: .foo
Type: SHT_PROGBITS
## Check that we are unable to dump the SHT_SYMTAB_SHNDX section when its
## sh_entsize has an unexpected value (not equal to 4).
# RUN: yaml2obj -DENTSIZE=0xff --docnum=7 %s -o %t7.entsize.bad
# RUN: not obj2yaml %t7.entsize.bad 2>&1 | \
# RUN: FileCheck %s -DFILE=%t7.entsize.bad --check-prefix=CASE7-BAD
# CASE7-BAD: Error reading file: [[FILE]]: unable to read extended section indexes: section [index 1] has invalid sh_entsize: expected 4, but got 255
## Check we don't print the "EntSize" field when the "sh_entsize" field has the default value.
# RUN: yaml2obj -DENTSIZE=4 --docnum=7 %s -o %t7.entsize.ok
# RUN: obj2yaml %t7.entsize.ok | FileCheck %s -DFILE=%t7.entsize.ok --check-prefix=CASE7
# CASE7: - Name: .symtab_shndx
# CASE7-NEXT: Type: SHT_SYMTAB_SHNDX
# CASE7-NEXT: Link: .symtab
# CASE7-NEXT: Entries: [ 0 ]
# CASE7-NEXT: Symbols:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Sections:
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
EntSize: [[ENTSIZE]]
Entries: [ 0 ]
Link: .symtab
Symbols: []
|
