1 ## This is a general test for --symbols option and its aliases.
2 ## There are also other symbols* tests that check specific things.
4 ## For testing and behavior documenting purposes we are using ET_REL and ET_DYN inputs.
5 ## Relocatable ELF objects are very different by nature from executables and dynamic libraries.
6 ## They might never have dynamic symbols normally, for example, though we still want
7 ## to document the --dyn-symbols behavior.
8 ## There is no need to check ET_EXEC inputs because for dumpers there is no difference
9 ## between them and ET_DYN inputs in the context of this test.
11 ## Case 1: Test how llvm-readobj and llvm-readelf dumps symbols.
12 ## a) Check relocatable objects.
13 # RUN: yaml2obj %s -DBITS=64 -DTYPE=ET_REL -o %t64
14 # RUN: llvm-readobj --symbols %t64 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
15 # RUN: llvm-readelf --symbols %t64 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU64
16 # RUN: llvm-readelf -s --extra-sym-info %t64 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU64X
17 # RUN: yaml2obj %s -DBITS=32 -DTYPE=ET_REL -o %t32
18 # RUN: llvm-readobj --symbols %t32 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
19 # RUN: llvm-readelf --symbols %t32 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU32
20 # RUN: llvm-readelf -s -X %t32 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU32X
21 ## b) Check dynamic objects.
22 # RUN: yaml2obj %s -DBITS=64 -DTYPE=ET_DYN -o %t64.so
23 # RUN: llvm-readobj --symbols %t64.so > %t64llvm.txt
24 # RUN: FileCheck --input-file=%t64llvm.txt %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
25 # RUN: llvm-readelf --symbols %t64.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU64
26 ## --extra-sym-info is a no-op for llvm-readobj.
27 # RUN: llvm-readobj --symbols --extra-sym-info %t64.so | diff %t64llvm.txt -
28 # RUN: yaml2obj %s -DBITS=32 -DTYPE=ET_DYN -o %t32.so
29 # RUN: llvm-readobj --symbols %t32.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
30 # RUN: llvm-readelf --symbols %t32.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU32
32 # SYMBOLS-LLVM:Symbols [
33 # SYMBOLS-LLVM-NEXT: Symbol {
34 # SYMBOLS-LLVM-NEXT: Name: (0)
35 # SYMBOLS-LLVM-NEXT: Value: 0x0
36 # SYMBOLS-LLVM-NEXT: Size: 0
37 # SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
38 # SYMBOLS-LLVM-NEXT: Type: None (0x0)
39 # SYMBOLS-LLVM-NEXT: Other: 0
40 # SYMBOLS-LLVM-NEXT: Section: Undefined (0x0)
41 # SYMBOLS-LLVM-NEXT: }
42 # SYMBOLS-LLVM-NEXT: Symbol {
43 # SYMBOLS-LLVM-NEXT: Name: foo (5)
44 # SYMBOLS-LLVM-NEXT: Value: 0x1
45 # SYMBOLS-LLVM-NEXT: Size: 0
46 # SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
47 # SYMBOLS-LLVM-NEXT: Type: None (0x0)
48 # SYMBOLS-LLVM-NEXT: Other: 0
49 # SYMBOLS-LLVM-NEXT: Section: .text (0x1)
50 # SYMBOLS-LLVM-NEXT: }
51 # SYMBOLS-LLVM-NEXT: Symbol {
52 # SYMBOLS-LLVM-NEXT: Name: bar (1)
53 # SYMBOLS-LLVM-NEXT: Value: 0x2
54 # SYMBOLS-LLVM-NEXT: Size: 0
55 # SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
56 # SYMBOLS-LLVM-NEXT: Type: None (0x0)
57 # SYMBOLS-LLVM-NEXT: Other: 0
58 # SYMBOLS-LLVM-NEXT: Section: Undefined (0x0)
59 # SYMBOLS-LLVM-NEXT: }
60 # SYMBOLS-LLVM-NEXT: Symbol {
61 # SYMBOLS-LLVM-NEXT: Name: data (9)
62 # SYMBOLS-LLVM-NEXT: Value: 0x3
63 # SYMBOLS-LLVM-NEXT: Size: 0
64 # SYMBOLS-LLVM-NEXT: Binding: Global (0x1)
65 # SYMBOLS-LLVM-NEXT: Type: None (0x0)
66 # SYMBOLS-LLVM-NEXT: Other: 0
67 # SYMBOLS-LLVM-NEXT: Section: .data (0x2)
68 # SYMBOLS-LLVM-NEXT: }
71 # SYMBOLS-GNU64:Symbol table '.symtab' contains 4 entries:
72 # SYMBOLS-GNU64-NEXT: Num: Value Size Type Bind Vis Ndx Name
73 # SYMBOLS-GNU64-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
74 # SYMBOLS-GNU64-NEXT: 1: 0000000000000001 0 NOTYPE LOCAL DEFAULT 1 foo
75 # SYMBOLS-GNU64-NEXT: 2: 0000000000000002 0 NOTYPE LOCAL DEFAULT UND bar
76 # SYMBOLS-GNU64-NEXT: 3: 0000000000000003 0 NOTYPE GLOBAL DEFAULT 2 data
78 # SYMBOLS-GNU64X:Symbol table '.symtab' contains 4 entries:
79 #SYMBOLS-GNU64X-NEXT: Num: Value Size Type Bind Vis+Other Ndx(SecName) Name [+ Version Info]
80 #SYMBOLS-GNU64X-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
81 #SYMBOLS-GNU64X-NEXT: 1: 0000000000000001 0 NOTYPE LOCAL DEFAULT 1 (.text) foo
82 #SYMBOLS-GNU64X-NEXT: 2: 0000000000000002 0 NOTYPE LOCAL DEFAULT UND bar
83 #SYMBOLS-GNU64X-NEXT: 3: 0000000000000003 0 NOTYPE GLOBAL DEFAULT 2 (.data) data
85 # SYMBOLS-GNU32:Symbol table '.symtab' contains 4 entries:
86 # SYMBOLS-GNU32-NEXT: Num: Value Size Type Bind Vis Ndx Name
87 # SYMBOLS-GNU32-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND
88 # SYMBOLS-GNU32-NEXT: 1: 00000001 0 NOTYPE LOCAL DEFAULT 1 foo
89 # SYMBOLS-GNU32-NEXT: 2: 00000002 0 NOTYPE LOCAL DEFAULT UND bar
90 # SYMBOLS-GNU32-NEXT: 3: 00000003 0 NOTYPE GLOBAL DEFAULT 2 data
92 # SYMBOLS-GNU32X:Symbol table '.symtab' contains 4 entries:
93 #SYMBOLS-GNU32X-NEXT: Num: Value Size Type Bind Vis+Other Ndx(SecName) Name [+ Version Info]
94 #SYMBOLS-GNU32X-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND
95 #SYMBOLS-GNU32X-NEXT: 1: 00000001 0 NOTYPE LOCAL DEFAULT 1 (.text) foo
96 #SYMBOLS-GNU32X-NEXT: 2: 00000002 0 NOTYPE LOCAL DEFAULT UND bar
97 #SYMBOLS-GNU32X-NEXT: 3: 00000003 0 NOTYPE GLOBAL DEFAULT 2 (.data) data
99 ## Case 2: Check flag aliases produce identical output
100 # RUN: llvm-readobj --symbols %t64 > %t.symbols
101 # RUN: llvm-readobj --syms %t64 > %t.syms
102 # RUN: cmp %t.symbols %t.syms
103 # RUN: llvm-readobj -s %t64 | diff %t.symbols -
104 # RUN: llvm-readelf -s --elf-output-style=LLVM %t64 | diff %t.symbols -
106 # RUN: llvm-readelf --symbols %t64 > %t.symbols.gnu
107 # RUN: llvm-readelf --syms %t64 > %t.syms.gnu
108 # RUN: cmp %t.symbols.gnu %t.syms.gnu
109 # RUN: llvm-readelf -s %t64 | diff %t.symbols.gnu -
111 ## Case 3: Test that both regular and dynamic symbols are dumped when `--symbols` and `--dyn-symbols`
112 ## are specified together. Note that the order is different for different styles.
113 # RUN: llvm-readobj --symbols --dyn-symbols %t64 | FileCheck %s --check-prefix=BOTH-LLVM
114 # RUN: llvm-readelf --symbols --dyn-symbols %t64 | FileCheck %s --check-prefix=BOTH-GNU
116 # BOTH-LLVM: Symbols [
117 # BOTH-LLVM: DynamicSymbols [
119 # BOTH-GNU: Symbol table '.dynsym'
120 # BOTH-GNU: Symbol table '.symtab'
122 ## Case 4: --symbols implies --dyn-symbols for llvm-readelf.
123 # RUN: llvm-readobj --symbols %t64 | FileCheck %s --implicit-check-not="DynamicSymbols ["
124 # RUN: llvm-readelf --symbols %t64 | FileCheck %s --check-prefix=BOTH-GNU
126 ## Case 5: Test that `--dyn-symbols` does not trigger `--symbols` implicitly.
127 # RUN: llvm-readobj --dyn-symbols %t64 | FileCheck %s --implicit-check-not="{{^}}Symbols ["
128 # RUN: llvm-readelf --dyn-symbols %t64 | FileCheck %s --implicit-check-not="Symbol table '.symtab'"
130 ## Case 6: Test that the Num index starts from zero at every new symbol table.
131 # RUN: llvm-readelf --symbols %t64 %t64 | FileCheck %s --check-prefix=NUM-INDEX
133 # NUM-INDEX: Symbol table '.symtab' contains 4 entries:
134 # NUM-INDEX-NEXT: Num: {{.*}}
135 # NUM-INDEX-NEXT: 0: {{.*}}
136 # NUM-INDEX: Symbol table '.symtab' contains 4 entries:
137 # NUM-INDEX-NEXT: Num: {{.*}}
138 # NUM-INDEX-NEXT: 0: {{.*}}
142 Class: ELFCLASS[[BITS]]
163 ## Check the behavior when we are unable to print symbols due to an error.
165 ## Case 1: check we are able to dump symbols even when can't get the string table for the
166 ## SHT_SYMTAB section because of invalid sh_link value.
167 # RUN: yaml2obj --docnum=2 -DLINK=0xff %s -o %t64.err1
168 # RUN: llvm-readobj --symbols %t64.err1 2>&1 | \
169 # RUN: FileCheck %s -DFILE=%t64.err1 --check-prefix=STRTAB-LINK-ERR-LLVM
170 # RUN: llvm-readelf --symbols %t64.err1 2>&1 | \
171 # RUN: FileCheck %s -DFILE=%t64.err1 --check-prefix=STRTAB-LINK-ERR-GNU
173 # STRTAB-LINK-ERR-LLVM: Symbols [
174 # STRTAB-LINK-ERR-LLVM-NEXT: warning: '[[FILE]]': unable to get the string table for the SHT_SYMTAB section: invalid section index: 255
175 # STRTAB-LINK-ERR-LLVM-NEXT: Symbol {
176 # STRTAB-LINK-ERR-LLVM-NEXT: Name: <?> (0)
177 # STRTAB-LINK-ERR-LLVM-NEXT: Value: 0x0
178 # STRTAB-LINK-ERR-LLVM-NEXT: Size: 0
179 # STRTAB-LINK-ERR-LLVM-NEXT: Binding: Local (0x0)
180 # STRTAB-LINK-ERR-LLVM-NEXT: Type: None (0x0)
181 # STRTAB-LINK-ERR-LLVM-NEXT: Other: 0
182 # STRTAB-LINK-ERR-LLVM-NEXT: Section: Undefined (0x0)
183 # STRTAB-LINK-ERR-LLVM-NEXT: }
184 # STRTAB-LINK-ERR-LLVM-NEXT: Symbol {
185 # STRTAB-LINK-ERR-LLVM-NEXT: Name: <?> (1)
186 # STRTAB-LINK-ERR-LLVM-NEXT: Value: 0x1
187 # STRTAB-LINK-ERR-LLVM-NEXT: Size: 0
188 # STRTAB-LINK-ERR-LLVM-NEXT: Binding: Global (0x1)
189 # STRTAB-LINK-ERR-LLVM-NEXT: Type: None (0x0)
190 # STRTAB-LINK-ERR-LLVM-NEXT: Other: 0
191 # STRTAB-LINK-ERR-LLVM-NEXT: Section: .symtab (0x1)
192 # STRTAB-LINK-ERR-LLVM-NEXT: }
193 # STRTAB-LINK-ERR-LLVM-NEXT: ]
195 # STRTAB-LINK-ERR-GNU: warning: '[[FILE]]': unable to get the string table for the SHT_SYMTAB section: invalid section index: 255
196 # STRTAB-LINK-ERR-GNU: Symbol table '.symtab' contains 2 entries:
197 # STRTAB-LINK-ERR-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
198 # STRTAB-LINK-ERR-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND <?>
199 # STRTAB-LINK-ERR-GNU-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT 1 <?>
206 EShStrNdx: [[SHSTRTAB=2]]
210 Link: [[LINK=.strtab]]
211 EntSize: [[ENTSIZE=0x18]]
212 ## Define the .shstrtab section to reveal its position.
221 ## Case 2: check we report a warning when we are unable to read symbols
222 ## from the the SHT_SYMTAB section.
223 # RUN: yaml2obj --docnum=2 -DENTSIZE=0xFF %s -o %t64.err2
224 # RUN: llvm-readobj --symbols %t64.err2 2>&1 | \
225 # RUN: FileCheck %s -DFILE=%t64.err2 --check-prefix=SYMTAB-ENTSIZE-ERR-LLVM
226 # RUN: llvm-readelf --symbols %t64.err2 2>&1 | \
227 # RUN: FileCheck %s -DFILE=%t64.err2 --check-prefix=SYMTAB-ENTSIZE-ERR-GNU
229 # SYMTAB-ENTSIZE-ERR-LLVM: Symbols [
230 # SYMTAB-ENTSIZE-ERR-LLVM-NEXT: warning: '[[FILE]]': unable to read symbols from the SHT_SYMTAB section: section [index 1] has invalid sh_entsize: expected 24, but got 255
231 # SYMTAB-ENTSIZE-ERR-LLVM: ]
233 # SYMTAB-ENTSIZE-ERR-GNU: warning: '[[FILE]]': unable to read symbols from the SHT_SYMTAB section: section [index 1] has invalid sh_entsize: expected 24, but got 255
234 # SYMTAB-ENTSIZE-ERR-GNU-NOT: {{.}}
236 ## Case 3: check we report a warning, but continue dumping, when we are unable to read the name of the SHT_SYMTAB section.
237 ## In this case we set the e_shstrndx field to an invalid index so that the .shstrtab section can't be located.
238 # RUN: yaml2obj --docnum=2 -DSHSTRTAB=0xff %s -o %t64.err3
239 # RUN: llvm-readobj --symbols %t64.err3 2>&1 | \
240 # RUN: FileCheck %s -DFILE=%t64.err3 --check-prefix=SYMTAB-SHSTRTAB-ERR-LLVM --implicit-check-not=warning:
241 # RUN: llvm-readelf --symbols %t64.err3 2>&1 | \
242 # RUN: FileCheck %s -DFILE=%t64.err3 --check-prefix=SYMTAB-SHSTRTAB-ERR-GNU --implicit-check-not=warning:
244 # SYMTAB-SHSTRTAB-ERR-LLVM: Symbols [
245 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Symbol {
246 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Name: (0)
247 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Value: 0x0
248 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Size: 0
249 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Binding: Local (0x0)
250 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Type: None (0x0)
251 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Other: 0
252 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Section: Undefined (0x0)
253 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: }
254 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Symbol {
255 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Name: foo (1)
256 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Value: 0x1
257 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Size: 0
258 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Binding: Global (0x1)
259 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Type: None (0x0)
260 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Other: 0
261 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: warning: '[[FILE]]': section header string table index 255 does not exist
262 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Section: <?> (0x1)
263 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: }
264 # SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: ]
266 # SYMTAB-SHSTRTAB-ERR-GNU: warning: '[[FILE]]': unable to get the name of SHT_SYMTAB section with index 1: section header string table index 255 does not exist
267 # SYMTAB-SHSTRTAB-ERR-GNU: Symbol table '<?>' contains 2 entries:
268 # SYMTAB-SHSTRTAB-ERR-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
269 # SYMTAB-SHSTRTAB-ERR-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
270 # SYMTAB-SHSTRTAB-ERR-GNU-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT 1 foo
272 ## Test a symbol defined relative to a section with an invalid name.
273 # RUN: yaml2obj --docnum=3 %s -o %t64.err4
274 # RUN: llvm-readelf -s %t64.err4 2>&1 | FileCheck /dev/null --implicit-check-not=warning:
275 # RUN: llvm-readelf -s -X %t64.err4 2>&1 | \
276 # RUN: FileCheck %s -DFILE=%t64.err4 --check-prefix=INVALID-SECNAME-GNU --implicit-check-not=warning:
278 # INVALID-SECNAME-GNU: Num: Value Size Type Bind Vis+Other Ndx(SecName) Name [+ Version Info]
279 # INVALID-SECNAME-GNU-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND
280 # INVALID-SECNAME-GNU-NEXT: warning: '[[FILE]]': a section [index 1] has an invalid sh_name (0xffff) offset which goes past the end of the section name string table
281 # INVALID-SECNAME-GNU-NEXT: 1: 00000000 0 NOTYPE LOCAL DEFAULT 1 foo