File: sht-symtab-shndx.yaml

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (191 lines) | stat: -rw-r--r-- 6,116 bytes parent folder | download | duplicates (21)
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
## Check that yaml2obj is able to produce output
## when a symbol with section index SHN_XINDEX is used,
## but no SHT_SYMTAB_SHNDX section is defined.

# RUN: yaml2obj --docnum=1 %s -o %t1
# RUN: llvm-readobj --symbols 2>&1 %t1 | FileCheck -DFILE=%t1 %s --check-prefix=CASE1

# CASE1: warning: '[[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
Sections:
  - Name: bar
    Type: SHT_PROGBITS
Symbols:
  - Type:  STT_SECTION
    Index: SHN_XINDEX

## Check that yaml2obj keeps the SHT_SYMTAB_SHNDX section in the output
## even when symbol's section index value is low enough to not require the extended symtab.
## Also, check that symbols in .symtab still have the SHN_XINDEX index.

# RUN: yaml2obj --docnum=2 %s -o %t2
# RUN: llvm-readobj --sections --symbols --section-data 2>&1 %t2 | FileCheck %s --check-prefix=CASE2

# CASE2:      Section {
# CASE2:       Name: .symtab_shndx (1)
# CASE2-NEXT:  Type: SHT_SYMTAB_SHNDX (0x12)

# CASE2:      Name: .symtab
# CASE2:      SectionData (
# CASE2-NEXT:   0000: 00000000 00000000 00000000 00000000
# CASE2-NEXT:   0010: 00000000 00000000 00000000 0300FFFF
##                                                   ^-- 0xFFFF here is a SHN_XINDEX.
# CASE2-NEXT:   0020: 00000000 00000000 00000000 00000000
# CASE2-NEXT: )

# CASE2:      Symbol {
# CASE2:        Name: bar (0)
# CASE2-NEXT:   Value: 0x0
# CASE2-NEXT:   Size: 0
# CASE2-NEXT:   Binding: Local (0x0)
# CASE2-NEXT:   Type: Section (0x3)
# CASE2-NEXT:   Other: 0
# CASE2-NEXT:   Section: bar (0x1)
# CASE2-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 ]
    Link:    .symtab
Symbols:
  - Type:  STT_SECTION
    Index: SHN_XINDEX

## Check that yaml2obj allows producing broken SHT_SYMTAB_SHNDX section
## content (in the case below it contains 0xff as an index of a section,
## which is larger than the total number of sections in the file).

# RUN: yaml2obj --docnum=3 %s -o %t3
# RUN: llvm-readobj --symbols 2>&1 %t3 | FileCheck %s -DFILE=%t3 --check-prefix=CASE3

# CASE3: warning: '[[FILE]]': invalid section index: 255

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name: bar
    Type: SHT_PROGBITS
  - Name:    .symtab_shndx
    Type:    SHT_SYMTAB_SHNDX
    Entries: [ 0, 255 ]
    Link:    .symtab
Symbols:
  - Type:  STT_SECTION
    Index: SHN_XINDEX

## Check that yaml2obj reports an error if a symbol index does not fit into 2 bytes.

# RUN: not yaml2obj --docnum=4 %s -o %t4 2>&1 | FileCheck %s --check-prefix=CASE4

# CASE4: error: out of range hex16 number

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Symbols:
  - Type:  STT_SECTION
    Index: 65536

## Check we can set a custom sh_entsize for SHT_SYMTAB_SHNDX section.

# RUN: yaml2obj --docnum=5 %s -o %t5
# RUN: llvm-readelf -S 2>&1 %t5 | FileCheck %s -DFILE=%t5 --check-prefix=CASE5

# CASE5: warning: '[[FILE]]': section [index 1] has invalid sh_entsize: expected 4, but got 2

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name:    .symtab_shndx
    Type:    SHT_SYMTAB_SHNDX
    Entries: [ 0 ]
    EntSize: 2

## Check we can use the "Content" key with the "Size" key when the size is greater
## than or equal to the content size.

# RUN: not yaml2obj --docnum=6 -DSIZE=1 -DCONTENT="'0011'" %s 2>&1 | \
# RUN:   FileCheck %s --check-prefix=CONTENT-SIZE-ERR

# CONTENT-SIZE-ERR: error: Section size must be greater than or equal to the content size

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_DYN
Sections:
  - Name:    .symtab_shndx
    Type:    SHT_SYMTAB_SHNDX
    Link:    .symtab
    Size:    [[SIZE=<none>]]
    Content: [[CONTENT=<none>]]
    Entries: [[ENTRIES=<none>]]
  - Name: .symtab
    Type: SHT_SYMTAB
## llvm-readobj validates that SHT_SYMTAB_SHNDX section has the same number
## of entries that the symbol table associated has.
    Size: [[SYMTAB=0x24]]

# RUN: yaml2obj --docnum=6 -DSIZE=4 -DCONTENT="'00112233'" %s -o %t.cont.size.eq.o
# RUN: llvm-readobj --sections --section-data %t.cont.size.eq.o | \
# RUN:   FileCheck %s --check-prefix=CHECK-CONTENT -DDATA="00112233"

# RUN: yaml2obj --docnum=6 -DSIZE=8 -DSYMTAB=0x36 -DCONTENT="'00112233'" %s -o %t.cont.size.gr.o
# RUN: llvm-readobj --sections --section-data %t.cont.size.gr.o | \
# RUN:   FileCheck %s --check-prefix=CHECK-CONTENT -DDATA="00112233 00000000"

# CHECK-CONTENT:      Name: .symtab_shndx
# CHECK-CONTENT:      SectionData (
# CHECK-CONTENT-NEXT:   0000: [[DATA]] |
# CHECK-CONTENT-NEXT: )

## Check we can use the "Size" key alone to create the section.

# RUN: yaml2obj --docnum=6 -DSIZE=4 %s -o %t.size.o
# RUN: llvm-readobj --sections --section-data %t.size.o | \
# RUN:   FileCheck %s --check-prefix=CHECK-CONTENT -DDATA="00000000"

## Check we can use the "Content" key alone to create the section.

# RUN: yaml2obj --docnum=6 -DCONTENT="'11223344'" %s -o %t.content.o
# RUN: llvm-readobj --sections --section-data %t.content.o | \
# RUN:   FileCheck %s --check-prefix=CHECK-CONTENT -DDATA="11223344"

## Check we can't use the "Entries" key together with the "Content" or "Size" keys.

# RUN: not yaml2obj --docnum=6 -DSIZE=0 -DENTRIES="[]" %s 2>&1 | \
# RUN:   FileCheck %s --check-prefix=ENTRIES-ERR
# RUN: not yaml2obj --docnum=6 -DCONTENT="'00'" -DENTRIES="[]" %s 2>&1 | \
# RUN:   FileCheck %s --check-prefix=ENTRIES-ERR

# ENTRIES-ERR: error: "Entries" cannot be used with "Content" or "Size"

## Check we create an empty section when none of "Size", "Entries" or "Content" are specified.

# RUN: yaml2obj --docnum=6 -DSYMTAB=0x0 %s -o %t.empty
# RUN: llvm-readelf --sections %t.empty | FileCheck %s --check-prefix=EMPTY

# EMPTY: [Nr] Name          Type                   Address          Off    Size
# EMPTY: [ 1] .symtab_shndx SYMTAB SECTION INDICES 0000000000000000 000040 000000