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