summaryrefslogtreecommitdiffstats
path: root/llvm/test/tools/llvm-readobj/ELF/symbol-shndx.test
blob: ab01da9c842f8636902f7e9f4f090eeea8dfb2ba (plain)
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
## Show that llvm-readobj prints symbol shndxes correctly, for valid indexes,
## invalid indexes (i.e. section indexes that don't correspond to a real
## section), reserved values and processor/os-specific index values, for both GNU
## and LLVM styles.

# RUN: yaml2obj --docnum=1 %s > %t1
# RUN: llvm-readobj --symbols %t1 | FileCheck %s --check-prefix=LLVM1
# RUN: llvm-readelf --symbols %t1 | FileCheck %s --check-prefix=GNU1

# LLVM1: Name:    undef
# LLVM1: Section:
# LLVM1-SAME:     Undefined (0x0)
# LLVM1: Name:    normal
# LLVM1: Section:
# LLVM1-SAME:     .text (0x1)
# LLVM1: Name:    common
# LLVM1: Section:
# LLVM1-SAME:     Common (0xFFF2)
# LLVM1: Name:    absolute
# LLVM1: Section:
# LLVM1-SAME:     Absolute (0xFFF1)
# LLVM1: Name:    proc
# LLVM1: Section:
# LLVM1-SAME:     Processor Specific (0xFF01)
# LLVM1: Name:    os
# LLVM1: Section:
# LLVM1-SAME:     Operating System Specific (0xFF21)
# LLVM1: Name:    reserved
# LLVM1: Section:
# LLVM1-SAME:     Reserved (0xFFFE)
# LLVM1: Name:    xindex
# LLVM1: Section:
# LLVM1:          .text (0x1)

# GNU1:      Symbol table '.symtab' contains 9 entries:
# GNU1-NEXT:   Num: {{.*}} Ndx Name
# GNU1-NEXT:     0: {{.*}} UND
# GNU1-NEXT:     1: {{.*}} UND undef
# GNU1-NEXT:     2: {{.*}}   1 normal
# GNU1-NEXT:     3: {{.*}} COM common
# GNU1-NEXT:     4: {{.*}} ABS absolute
# GNU1-NEXT:     5: {{.*}} PRC[0xff01] proc
# GNU1-NEXT:     6: {{.*}} OS[0xff21] os
# GNU1-NEXT:     7: {{.*}} RSV[0xfffe] reserved
# GNU1-NEXT:     8: {{.*}}   1 xindex

--- !ELF
FileHeader:
  Class:   ELFCLASS32
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_386
Sections:
  - Name: .text
    Type: SHT_PROGBITS
  - Name: .symtab_shndx
    Type: SHT_SYMTAB_SHNDX
    Link: .symtab
    Entries: [ 0, 0, 0, 0, 0, 0, 0, 0, 1 ]
Symbols:
  - Name:    undef
    Binding: STB_GLOBAL
  - Name:    normal
    Section: .text
    Binding: STB_GLOBAL
  - Name:    common
    Index:   SHN_COMMON
    Binding: STB_GLOBAL
  - Name:    absolute
    Index:   SHN_ABS
    Binding: STB_GLOBAL
  - Name:    proc
    Index:   0xff01
    Binding: STB_GLOBAL
  - Name:    os
    Index:   0xff21
    Binding: STB_GLOBAL
  - Name:    reserved
    Index:   0xfffe
    Binding: STB_GLOBAL
  - Name:    xindex
    Index:   SHN_XINDEX
    Binding: STB_GLOBAL

## In this case, the index does not correspond to a real section. Check that GNU
## style just prints the section index as normal and LLVM style prints a warning
## (but only once for each warning).
# RUN: yaml2obj --docnum=2 %s > %t2
# RUN: llvm-readobj --symbols %t2 2> %t2.llvm.err | FileCheck %s --check-prefix=LLVM2
# RUN: FileCheck %s --input-file=%t2.llvm.err --check-prefix=BAD-SHNDX --implicit-check-not=warning
# RUN: llvm-readelf --symbols %t2 2> %t2.gnu.err | FileCheck %s --check-prefix=GNU2
# RUN: FileCheck %s --input-file=%t2.gnu.err --allow-empty --implicit-check-not={{.}}

# LLVM2: Name: bad
# LLVM2: Section:
# LLVM2-SAME:     <?> (0x42)
# LLVM2: Name: bad2
# LLVM2: Section:
# LLVM2-SAME:     <?> (0x42)
# LLVM2: Name: bad3
# LLVM2: Section:
# LLVM2-SAME:     <?> (0x43)
# LLVM2: Name: invalid_shndx
# LLVM2: Section:
# LLVM2-SAME:     <?> (0x9)
# LLVM2: Name: invalid_shndx2
# LLVM2: Section:
# LLVM2-SAME:     <?> (0x9)
# LLVM2: Name: invalid_shndx3
# LLVM2: Section:
# LLVM2-SAME:     <?> (0xA)

# GNU2:      Symbol table '.symtab' contains 7 entries:
# GNU2-NEXT:   Num: {{.*}} Ndx Name
# GNU2-NEXT:     0: {{.*}} UND
# GNU2-NEXT:     1: {{.*}}  66 bad
# GNU2-NEXT:     2: {{.*}}  66 bad2
# GNU2-NEXT:     3: {{.*}}  67 bad3
# GNU2-NEXT:     4: {{.*}}   9 invalid_shndx
# GNU2-NEXT:     5: {{.*}}   9 invalid_shndx2
# GNU2-NEXT:     6: {{.*}}  10 invalid_shndx3

# BAD-SHNDX: warning: '{{.*}}tmp2': invalid section index: 66
# BAD-SHNDX: warning: '{{.*}}tmp2': invalid section index: 67
# BAD-SHNDX: warning: '{{.*}}tmp2': invalid section index: 9
# BAD-SHNDX: warning: '{{.*}}tmp2': invalid section index: 10

--- !ELF
FileHeader:
  Class:   ELFCLASS32
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_386
Sections:
  - Name: .symtab_shndx
    Type: SHT_SYMTAB_SHNDX
    Link: .symtab
    Entries: [ 0, 0, 0, 0, 9, 9, 10 ]
Symbols:
  - Name:    bad
    Index:   0x42
  - Name:    bad2
    Index:   0x42
  - Name:    bad3
    Index:   0x43
  - Name:    invalid_shndx
    Index:   SHN_XINDEX
  - Name:    invalid_shndx2
    Index:   SHN_XINDEX
  - Name:    invalid_shndx3
    Index:   SHN_XINDEX

## In this case, the symtab shndx section is missing, so symbols with section
## indexes of SHN_XINDEX print as Reserved symbols.
# RUN: yaml2obj --docnum=3 %s > %t3
# RUN: llvm-readobj --symbols %t3 2> %t3.llvm.err | FileCheck %s --check-prefix=LLVM3
# RUN: FileCheck %s --input-file=%t3.llvm.err --check-prefix=NO-SYMTAB-SHNDX --implicit-check-not=warning
# RUN: llvm-readelf --symbols %t3 2> %t3.gnu.err | FileCheck %s --check-prefix=GNU3
# RUN: FileCheck %s --input-file=%t3.gnu.err --check-prefix=NO-SYMTAB-SHNDX --implicit-check-not=warning

# LLVM3: Name: no_shndx
# LLVM3: Section:
# LLVM3-SAME:     Reserved (0xFFFF)
# LLVM3: Name: no_shndx2
# LLVM3: Section:
# LLVM3-SAME:     Reserved (0xFFFF)

# GNU3:      Symbol table '.symtab' contains 3 entries:
# GNU3-NEXT:   Num: {{.*}} Ndx Name
# GNU3-NEXT:     0: {{.*}} UND
# GNU3-NEXT:     1: {{.*}} RSV[0xffff] no_shndx
# GNU3-NEXT:     2: {{.*}} RSV[0xffff] no_shndx2

# NO-SYMTAB-SHNDX: warning: '{{.*}}tmp3': extended symbol index (1) is past the end of the SHT_SYMTAB_SHNDX section of size 0
# NO-SYMTAB-SHNDX: warning: '{{.*}}tmp3': extended symbol index (2) is past the end of the SHT_SYMTAB_SHNDX section of size 0

--- !ELF
FileHeader:
  Class:   ELFCLASS32
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_386
Symbols:
  - Name:  no_shndx
    Index: SHN_XINDEX
  - Name:  no_shndx2
    Index: SHN_XINDEX
OpenPOWER on IntegriCloud