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## This is a test for --dynamic/-D option.
## Test llvm-nm dumping ELF file with valid .dynsym section.
# RUN: yaml2obj --docnum=1 %s -o %t1.o
# RUN: llvm-nm --dynamic %t1.o | \
# RUN: FileCheck %s --match-full-lines --strict-whitespace --check-prefix DYNSYM
# RUN: llvm-nm -D %t1.o | \
# RUN: FileCheck %s --match-full-lines --strict-whitespace --check-prefix DYNSYM
# DYNSYM: U globalsym
# DYNSYM-NEXT: U localsym1
# DYNSYM-NEXT:0000000000000000 n localsym2
# DYNSYM-EMPTY:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: section
Type: SHT_PROGBITS
DynamicSymbols:
- Name: localsym1
Type: STT_OBJECT
- Name: localsym2
Section: section
- Name: globalsym
Type: STT_OBJECT
Binding: STB_GLOBAL
## Test llvm-nm dumping ELF file without a .dynsym section.
# RUN: yaml2obj --docnum=2 %s -o %t2.o
# RUN: llvm-nm --dynamic %t2.o 2>&1 | \
# RUN: FileCheck %s --match-full-lines --strict-whitespace -DFILE=%t2.o --check-prefix NO-SYMS
# NO-SYMS:[[FILE]]: no symbols
# NO-SYMS-EMPTY:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
## Test llvm-nm dumping ELF file with an empty .dynsym section.
# RUN: yaml2obj --docnum=3 %s -o %t3.o
# RUN: llvm-nm --dynamic %t3.o 2>&1 | \
# RUN: FileCheck %s --match-full-lines --strict-whitespace -DFILE=%t3.o --check-prefix NO-SYMS
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Machine: EM_X86_64
Sections:
- Name: .dynsym
Type: SHT_DYNSYM
Size: 0
## Check we print symbol versions, when they are available.
## A default version is one that is contained in the version table (SHT_GNU_versym)
## and only available for defined symbols. Check we use the "@@" prefix to print it.
# RUN: yaml2obj --docnum=4 %s -o %t4-undef.o
# RUN: llvm-nm --dynamic %t4-undef.o 2>&1 | \
# RUN: FileCheck %s -DFILE=%t4-undef.o -DTYPE=U \
# RUN: --check-prefixes=VERSIONED-SYMS,VERSIONED-UNDEF-SYMS
# RUN: yaml2obj --docnum=4 -DINDEX=0x1 %s -o %t4-def.o
# RUN: llvm-nm --dynamic %t4-def.o 2>&1 | \
# RUN: FileCheck %s -DFILE=%t4-def.o -DTYPE=r \
# RUN: --check-prefixes=VERSIONED-SYMS,VERSIONED-DEF-SYMS
# VERSIONED-SYMS: [[TYPE]] globalversym
# VERSIONED-SYMS-NEXT: [[TYPE]] localversym
# VERSIONED-UNDEF-SYMS-NEXT: [[TYPE]] version2sym@v2
# VERSIONED-DEF-SYMS-NEXT: [[TYPE]] version2sym@@v2
# VERSIONED-SYMS-NEXT: [[TYPE]] version3sym@v3hidden
# VERSIONED-SYMS-NEXT: [[TYPE]] version4sym@v4
# VERSIONED-SYMS-NEXT: [[TYPE]] version5sym@v5hidden
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
## 0x8000 is a special VERSYM_HIDDEN bit.
Entries: [ 0, 0, 1, [[VERSYMENTRY=2]], 0x8003, 4, 0x8005 ]
ShSize: [[VERSYMSIZE=<none>]]
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Flags: [ SHF_ALLOC ]
Link: .dynstr
AddressAlign: 0x4
Info: 0x2
ShOffset: [[VERDEFOFFSET=<none>]]
Entries:
- VersionNdx: 2
Names:
- v2
- VersionNdx: 3
Names:
- v3hidden
- Name: .gnu.version_r
Type: SHT_GNU_verneed
Flags: [ SHF_ALLOC ]
Link: .dynstr
Info: 0x2
Dependencies:
- Version: 1
File: file1.so
Entries:
- Name: v4
Hash: 0
Flags: 0
Other: 4
- Version: 1
File: file2.0
Entries:
- Name: v5hidden
Hash: 0
Flags: 0
Other: 5
- Name: .dynsym
Type: SHT_DYNSYM
EntSize: [[ENTSIZE=<none>]]
DynamicSymbols:
- Name: localversym
Index: [[INDEX=<none>]]
- Name: globalversym
Index: [[INDEX=<none>]]
- Name: version2sym
Index: [[INDEX=<none>]]
- Name: version3sym
Index: [[INDEX=<none>]]
- Name: version4sym
Index: [[INDEX=<none>]]
- Name: version5sym
Index: [[INDEX=<none>]]
## In the following cases we check we report warnings when unable to read symbol version.
## Check that we still print unversioned symbol names.
## Case 1: check we report a warning when unable to read symbol versions
## from a broken SHT_GNU_verdef section. In this case its sh_offset
## field has a too large value that goes past the EOF.
# RUN: yaml2obj --docnum=4 -DVERDEFOFFSET=0xffffffff %s -o %t4-broken-verdef.o
# RUN: llvm-nm --dynamic %t4-broken-verdef.o 2>&1 | \
# RUN: FileCheck %s --check-prefixes=VERSION-ERR,VERSION-ERR1
# VERSION-ERR1: warning: unable to read symbol versions: cannot read content of SHT_GNU_verdef section with index 2: section [index 2] has a sh_offset (0xffffffff) + sh_size (0x38) that is greater than the file size (0x438)
# VERSION-ERR2: warning: unable to read symbol versions: unable to read an entry with index 1 from SHT_GNU_versym section with index 1: section [index 1] has an invalid sh_size (255) which is not a multiple of its sh_entsize (2)
# VERSION-ERR3: warning: unable to read symbol versions: unable to get a version for entry 3 of SHT_GNU_versym section with index 1: SHT_GNU_versym section refers to a version index 255 which is missing
# VERSION-ERR-NEXT: U globalversym{{$}}
# VERSION-ERR-NEXT: U localversym{{$}}
# VERSION-ERR-NEXT: U version2sym{{$}}
# VERSION-ERR-NEXT: U version3sym{{$}}
# VERSION-ERR-NEXT: U version4sym{{$}}
# VERSION-ERR-NEXT: U version5sym{{$}}
## Case 2: check we report a warning when we are unable to read a SHT_GNU_versym section entry.
## In this case, the section has a size that is not a multiple of its sh_entsize.
# RUN: yaml2obj --docnum=4 -DVERSYMSIZE=0xff %s -o %t4-broken-versym.o
# RUN: llvm-nm --dynamic %t4-broken-versym.o 2>&1 | \
# RUN: FileCheck %s --check-prefixes=VERSION-ERR,VERSION-ERR2
## Case 3: check we report a warning when we are unable to get a version for a SHT_GNU_versym section entry.
## In this case the SHT_GNU_versym section refers to a version index 255 which is missing.
# RUN: yaml2obj --docnum=4 -DVERSYMENTRY=0xff %s -o %t4-broken-index.o
# RUN: llvm-nm --dynamic %t4-broken-index.o 2>&1 | \
# RUN: FileCheck %s --check-prefixes=VERSION-ERR,VERSION-ERR3
## Case 4: check we report a warning when we are unable to get symbol flags.
## In this case the dynamic symbol table has a wrong sh_entsize and we can't read a symbol.
# RUN: yaml2obj --docnum=4 -DENTSIZE=0xff %s -o %t4-broken-dynsym.o
# RUN: not llvm-nm --dynamic %t4-broken-dynsym.o 2>&1 | \
# RUN: FileCheck %s -DFILE=%t4-broken-dynsym.o --check-prefix=VERSION-ERR4
# VERSION-ERR4: warning: unable to read symbol versions: unable to read flags for symbol with index 1: section [index 4] has invalid sh_entsize: expected 24, but got 255
# VERSION-ERR4: error: [[FILE]]: section [index 4] has invalid sh_entsize: expected 24, but got 255
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