235 lines
11 KiB
Plaintext
235 lines
11 KiB
Plaintext
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## This is a general test for --symbols option and its aliases.
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## There are also other symbols* tests that check specific things.
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## For testing and behavior documenting purposes we are using ET_REL and ET_DYN inputs.
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## Relocatable ELF objects are very different by nature from executables and dynamic libraries.
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## They might never have dynamic symbols normally, for example, though we still want
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## to document the --dyn-symbols behavior.
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## There is no need to check ET_EXEC inputs because for dumpers there is no difference
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## between them and ET_DYN inputs in the context of this test.
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## Case 1: Test how llvm-readobj and llvm-readelf dumps symbols.
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## a) Check relocatable objects.
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# RUN: yaml2obj %s -DBITS=64 -DTYPE=ET_REL -o %t64
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# RUN: llvm-readobj --symbols %t64 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
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# RUN: llvm-readelf --symbols %t64 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU64
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# RUN: yaml2obj %s -DBITS=32 -DTYPE=ET_REL -o %t32
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# RUN: llvm-readobj --symbols %t32 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
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# RUN: llvm-readelf --symbols %t32 | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU32
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## b) Check dynamic objects.
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# RUN: yaml2obj %s -DBITS=64 -DTYPE=ET_DYN -o %t64.so
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# RUN: llvm-readobj --symbols %t64.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
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# RUN: llvm-readelf --symbols %t64.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU64
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# RUN: yaml2obj %s -DBITS=32 -DTYPE=ET_DYN -o %t32.so
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# RUN: llvm-readobj --symbols %t32.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-LLVM
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# RUN: llvm-readelf --symbols %t32.so | FileCheck %s --match-full-lines --strict-whitespace --check-prefix=SYMBOLS-GNU32
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# SYMBOLS-LLVM:Symbols [
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# SYMBOLS-LLVM-NEXT: Symbol {
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# SYMBOLS-LLVM-NEXT: Name: (0)
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# SYMBOLS-LLVM-NEXT: Value: 0x0
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# SYMBOLS-LLVM-NEXT: Size: 0
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# SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
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# SYMBOLS-LLVM-NEXT: Type: None (0x0)
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# SYMBOLS-LLVM-NEXT: Other: 0
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# SYMBOLS-LLVM-NEXT: Section: Undefined (0x0)
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# SYMBOLS-LLVM-NEXT: }
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# SYMBOLS-LLVM-NEXT: Symbol {
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# SYMBOLS-LLVM-NEXT: Name: foo (5)
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# SYMBOLS-LLVM-NEXT: Value: 0x1
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# SYMBOLS-LLVM-NEXT: Size: 0
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# SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
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# SYMBOLS-LLVM-NEXT: Type: None (0x0)
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# SYMBOLS-LLVM-NEXT: Other: 0
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# SYMBOLS-LLVM-NEXT: Section: Undefined (0x0)
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# SYMBOLS-LLVM-NEXT: }
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# SYMBOLS-LLVM-NEXT: Symbol {
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# SYMBOLS-LLVM-NEXT: Name: bar (1)
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# SYMBOLS-LLVM-NEXT: Value: 0x2
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# SYMBOLS-LLVM-NEXT: Size: 0
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# SYMBOLS-LLVM-NEXT: Binding: Local (0x0)
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# SYMBOLS-LLVM-NEXT: Type: None (0x0)
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# SYMBOLS-LLVM-NEXT: Other: 0
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# SYMBOLS-LLVM-NEXT: Section: Undefined (0x0)
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# SYMBOLS-LLVM-NEXT: }
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# SYMBOLS-LLVM-NEXT:]
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# SYMBOLS-GNU64:Symbol table '.symtab' contains 3 entries:
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# SYMBOLS-GNU64-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# SYMBOLS-GNU64-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# SYMBOLS-GNU64-NEXT: 1: 0000000000000001 0 NOTYPE LOCAL DEFAULT UND foo
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# SYMBOLS-GNU64-NEXT: 2: 0000000000000002 0 NOTYPE LOCAL DEFAULT UND bar
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# SYMBOLS-GNU32:Symbol table '.symtab' contains 3 entries:
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# SYMBOLS-GNU32-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# SYMBOLS-GNU32-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND
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# SYMBOLS-GNU32-NEXT: 1: 00000001 0 NOTYPE LOCAL DEFAULT UND foo
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# SYMBOLS-GNU32-NEXT: 2: 00000002 0 NOTYPE LOCAL DEFAULT UND bar
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## Case 2: Check flag aliases produce identical output
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# RUN: llvm-readobj --symbols %t64 > %t.symbols
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# RUN: llvm-readobj --syms %t64 > %t.syms
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# RUN: cmp %t.symbols %t.syms
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# RUN: llvm-readobj -t %t64 > %t.t
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# RUN: cmp %t.symbols %t.t
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# RUN: llvm-readelf -s --elf-output-style=LLVM %t64 > %t.lowers
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# RUN: cmp %t.symbols %t.lowers
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# RUN: llvm-readelf --symbols %t64 > %t.symbols.gnu
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# RUN: llvm-readelf --syms %t64 > %t.syms.gnu
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# RUN: cmp %t.symbols.gnu %t.syms.gnu
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## -s is an llvm-readobj option to dump sections.
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# RUN: llvm-readobj -s --elf-output-style=GNU %t64 | FileCheck %s --implicit-check-not="Symbol table"
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## Case 3: Test that both regular and dynamic symbols are dumped when `--symbols` and `--dyn-symbols`
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## are specified together. Note that the order is different for different styles.
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# RUN: llvm-readobj --symbols --dyn-symbols %t64 | FileCheck %s --check-prefix=BOTH-LLVM
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# RUN: llvm-readelf --symbols --dyn-symbols %t64 | FileCheck %s --check-prefix=BOTH-GNU
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# BOTH-LLVM: Symbols [
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# BOTH-LLVM: DynamicSymbols [
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# BOTH-GNU: Symbol table '.dynsym'
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# BOTH-GNU: Symbol table '.symtab'
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## Case 4: --symbols implies --dyn-symbols for llvm-readelf.
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# RUN: llvm-readobj --symbols %t64 | FileCheck %s --implicit-check-not="DynamicSymbols ["
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# RUN: llvm-readelf --symbols %t64 | FileCheck %s --check-prefix=BOTH-GNU
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## Case 5: Test that `--dyn-symbols` does not trigger `--symbols` implicitly.
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# RUN: llvm-readobj --dyn-symbols %t64 | FileCheck %s --implicit-check-not="{{^}}Symbols ["
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# RUN: llvm-readelf --dyn-symbols %t64 | FileCheck %s --implicit-check-not="Symbol table '.symtab'"
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## Case 6: Test that the Num index starts from zero at every new symbol table.
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# RUN: llvm-readelf --symbols %t64 %t64 | FileCheck %s --check-prefix=NUM-INDEX
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# NUM-INDEX: Symbol table '.symtab' contains 3 entries:
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# NUM-INDEX-NEXT: Num: {{.*}}
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# NUM-INDEX-NEXT: 0: {{.*}}
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# NUM-INDEX: Symbol table '.symtab' contains 3 entries:
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# NUM-INDEX-NEXT: Num: {{.*}}
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# NUM-INDEX-NEXT: 0: {{.*}}
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--- !ELF
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FileHeader:
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Class: ELFCLASS[[BITS]]
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Data: ELFDATA2LSB
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Type: [[TYPE]]
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Symbols:
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- Name: foo
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Value: 0x1
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- Name: bar
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Value: 0x2
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DynamicSymbols:
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- Name: zed
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## Check the behavior when we are unable to print symbols due to an error.
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## Case 1: check we are able to dump symbols even when can't get the string table for the
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## SHT_SYMTAB section because of invalid sh_link value.
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# RUN: yaml2obj --docnum=2 -DLINK=0xff %s -o %t64.err1
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# RUN: llvm-readobj --symbols %t64.err1 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err1 --check-prefix=STRTAB-LINK-ERR-LLVM
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# RUN: llvm-readelf --symbols %t64.err1 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err1 --check-prefix=STRTAB-LINK-ERR-GNU
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# STRTAB-LINK-ERR-LLVM: Symbols [
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# STRTAB-LINK-ERR-LLVM-NEXT: warning: '[[FILE]]': unable to get the string table for the SHT_SYMTAB section: invalid section index: 255
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# STRTAB-LINK-ERR-LLVM-NEXT: Symbol {
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# STRTAB-LINK-ERR-LLVM-NEXT: Name: <?> (0)
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# STRTAB-LINK-ERR-LLVM-NEXT: Value: 0x0
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# STRTAB-LINK-ERR-LLVM-NEXT: Size: 0
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# STRTAB-LINK-ERR-LLVM-NEXT: Binding: Local (0x0)
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# STRTAB-LINK-ERR-LLVM-NEXT: Type: None (0x0)
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# STRTAB-LINK-ERR-LLVM-NEXT: Other: 0
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# STRTAB-LINK-ERR-LLVM-NEXT: Section: Undefined (0x0)
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# STRTAB-LINK-ERR-LLVM-NEXT: }
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# STRTAB-LINK-ERR-LLVM-NEXT: Symbol {
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# STRTAB-LINK-ERR-LLVM-NEXT: Name: <?> (1)
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# STRTAB-LINK-ERR-LLVM-NEXT: Value: 0x1
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# STRTAB-LINK-ERR-LLVM-NEXT: Size: 0
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# STRTAB-LINK-ERR-LLVM-NEXT: Binding: Global (0x1)
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# STRTAB-LINK-ERR-LLVM-NEXT: Type: None (0x0)
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# STRTAB-LINK-ERR-LLVM-NEXT: Other: 0
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# STRTAB-LINK-ERR-LLVM-NEXT: Section: .symtab (0x1)
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# STRTAB-LINK-ERR-LLVM-NEXT: }
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# STRTAB-LINK-ERR-LLVM-NEXT: ]
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# STRTAB-LINK-ERR-GNU: warning: '[[FILE]]': unable to get the string table for the SHT_SYMTAB section: invalid section index: 255
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# STRTAB-LINK-ERR-GNU: Symbol table '.symtab' contains 2 entries:
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# STRTAB-LINK-ERR-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# STRTAB-LINK-ERR-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND <?>
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# STRTAB-LINK-ERR-GNU-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT 1 <?>
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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EShStrNdx: [[SHSTRTAB=2]]
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Sections:
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- Name: .symtab
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Type: SHT_SYMTAB
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Link: [[LINK=.strtab]]
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EntSize: [[ENTSIZE=0x18]]
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## Define the .shstrtab section to reveal its position.
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- Name: .shstrtab
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Type: SHT_STRTAB
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Symbols:
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- Name: foo
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Value: 0x1
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Binding: STB_GLOBAL
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Index: 1
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## Case 2: check we report a warning when we are unable to read symbols
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## from the the SHT_SYMTAB section.
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# RUN: yaml2obj --docnum=2 -DENTSIZE=0xFF %s -o %t64.err2
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# RUN: llvm-readobj --symbols %t64.err2 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err2 --check-prefix=SYMTAB-ENTSIZE-ERR-LLVM
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# RUN: llvm-readelf --symbols %t64.err2 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err2 --check-prefix=SYMTAB-ENTSIZE-ERR-GNU
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# SYMTAB-ENTSIZE-ERR-LLVM: Symbols [
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# 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
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# SYMTAB-ENTSIZE-ERR-LLVM: ]
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# 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
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# SYMTAB-ENTSIZE-ERR-GNU-NOT: {{.}}
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## Case 3: check we report a warning, but continue dumping, when we are unable to read the name of the SHT_SYMTAB section.
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## In this case we set the e_shstrndx field to an invalid index so that the .shstrtab section can't be located.
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# RUN: yaml2obj --docnum=2 -DSHSTRTAB=0xff %s -o %t64.err3
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# RUN: llvm-readobj --symbols %t64.err3 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err3 --check-prefix=SYMTAB-SHSTRTAB-ERR-LLVM --implicit-check-not=warning:
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# RUN: llvm-readelf --symbols %t64.err3 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t64.err3 --check-prefix=SYMTAB-SHSTRTAB-ERR-GNU --implicit-check-not=warning:
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# SYMTAB-SHSTRTAB-ERR-LLVM: Symbols [
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Symbol {
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Name: (0)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Value: 0x0
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Size: 0
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Binding: Local (0x0)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Type: None (0x0)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Other: 0
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Section: Undefined (0x0)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: }
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Symbol {
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Name: foo (1)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Value: 0x1
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Size: 0
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Binding: Global (0x1)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Type: None (0x0)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Other: 0
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: warning: '[[FILE]]': section header string table index 255 does not exist
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: Section: <?> (0x1)
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: }
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# SYMTAB-SHSTRTAB-ERR-LLVM-NEXT: ]
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# 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
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# SYMTAB-SHSTRTAB-ERR-GNU: Symbol table '<?>' contains 2 entries:
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# SYMTAB-SHSTRTAB-ERR-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# SYMTAB-SHSTRTAB-ERR-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# SYMTAB-SHSTRTAB-ERR-GNU-NEXT: 1: 0000000000000001 0 NOTYPE GLOBAL DEFAULT 1 foo
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