diff options
Diffstat (limited to 'llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test')
| -rw-r--r-- | llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test b/llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test new file mode 100644 index 00000000000..bfcd821e0f9 --- /dev/null +++ b/llvm/test/tools/llvm-readobj/ELF/dyn-symbols.test @@ -0,0 +1,286 @@ +# RUN: llvm-readobj --dyn-symbols %p/Inputs/dynamic-table-so.x86 | FileCheck %s + +## Check the two-letter alias --dt is equivalent to the --dyn-symbols full flag +## name. + +# RUN: llvm-readobj --dt %p/Inputs/dynamic-table-so.x86 > %t.readobj-dt-alias +# RUN: llvm-readobj --dyn-symbols %p/Inputs/dynamic-table-so.x86 > %t.readobj-dt-no-alias +# RUN: diff %t.readobj-dt-alias %t.readobj-dt-no-alias + +# CHECK: DynamicSymbols [ +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Local +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: +# CHECK-NEXT: Value: 0x618 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Local +# CHECK-NEXT: Type: Section +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .init +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: +# CHECK-NEXT: Value: 0x200DC0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Local +# CHECK-NEXT: Type: Section +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .tbss +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _ITM_deregisterTMCloneTable{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Weak +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: puts@GLIBC_2.2.5{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: __tls_get_addr@GLIBC_2.3{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: __gmon_start__{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Weak +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _Jv_RegisterClasses{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Weak +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _ITM_registerTMCloneTable{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Weak +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: __cxa_finalize@GLIBC_2.2.5{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Weak +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: Undefined +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _edata{{ }} +# CHECK-NEXT: Value: 0x201030 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .data +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: foo{{ }} +# CHECK-NEXT: Value: 0x0 +# CHECK-NEXT: Size: 4 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: TLS +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .tbss +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _end{{ }} +# CHECK-NEXT: Value: 0x201038 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .bss +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: __bss_start{{ }} +# CHECK-NEXT: Value: 0x201030 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: None +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .bss +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: main{{ }} +# CHECK-NEXT: Value: 0x780 +# CHECK-NEXT: Size: 59 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .text +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _init{{ }} +# CHECK-NEXT: Value: 0x618 +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .init +# CHECK-NEXT: } +# CHECK-NEXT: Symbol { +# CHECK-NEXT: Name: _fini{{ }} +# CHECK-NEXT: Value: 0x7BC +# CHECK-NEXT: Size: 0 +# CHECK-NEXT: Binding: Global +# CHECK-NEXT: Type: Function +# CHECK-NEXT: Other: 0 +# CHECK-NEXT: Section: .fini +# CHECK-NEXT: } +# CHECK-NEXT: ] + +## Check that we are able to dump the dynamic symbol table even when we have no program headers. +## In this case we find the table by it's type (SHT_DYNSYM) and ignore the DT_SYMTAB value. + +# RUN: yaml2obj --docnum=1 %s -o %t1.so +# RUN: llvm-readobj %t1.so --dyn-symbols | FileCheck %s --check-prefix=NOPHDRS + +# NOPHDRS: Name: foo + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .dynamic + Type: SHT_DYNAMIC + Entries: + - Tag: DT_SYMTAB + Value: 0xffff1234 + - Tag: DT_NULL + Value: 0 +DynamicSymbols: + - Name: foo + +## Check we report a warning when there is no SHT_DYNSYM section and we can't map the DT_SYMTAB value +## to an address because of the absence of a corresponding PT_LOAD program header. + +# RUN: yaml2obj --docnum=2 %s -o %t2.so +# RUN: llvm-readobj %t2.so --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t2.so --check-prefix=NOSHT-DYNSYM + +# NOSHT-DYNSYM: warning: '[[FILE]]': Unable to parse DT_SYMTAB: virtual address is not in any segment: 0x0 +# NOSHT-DYNSYM: DynamicSymbols [ +# NOSHT-DYNSYM-NEXT: ] + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .dynsym + Type: SHT_PROGBITS + - Name: .dynamic + Type: SHT_DYNAMIC + Entries: + - Tag: DT_SYMTAB + Value: 0 + - Tag: DT_NULL + Value: 0 +DynamicSymbols: + - Name: foo + +## Check that when we can't map the value of the DT_SYMTAB tag to an address, we report a warning and +## use the information in the section header table to locate the dynamic symbol table. + +# RUN: yaml2obj --docnum=3 %s -o %t3.so +# RUN: llvm-readobj %t3.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t3.so %s --check-prefix=BROKEN-DTSYMTAB + +# BROKEN-DTSYMTAB: warning: '[[FILE]]': Unable to parse DT_SYMTAB: virtual address is not in any segment: 0xffff1234 +# BROKEN-DTSYMTAB: Name: foo + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .dynamic + Type: SHT_DYNAMIC + Entries: + - Tag: DT_SYMTAB + Value: 0xffff1234 + - Tag: DT_NULL + Value: 0 +DynamicSymbols: + - Name: foo +ProgramHeaders: + - Type: PT_LOAD + VAddr: 0x0000 + Sections: + - Section: .dynsym + +## Check that if we can get the location of the dynamic symbol table using both the DT_SYMTAB value +## and the section headers table then we prefer the former and report a warning. + +# RUN: yaml2obj --docnum=4 %s -o %t4.so +# RUN: llvm-readobj %t4.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t4.so %s --check-prefix=PREFER-DTSYMTAB + +# PREFER-DTSYMTAB: warning: '[[FILE]]': SHT_DYNSYM section header and DT_SYMTAB disagree about the location of the dynamic symbol table +# PREFER-DTSYMTAB: Name: o + +--- !ELF +FileHeader: + Class: ELFCLASS64 + Data: ELFDATA2LSB + Type: ET_DYN + Machine: EM_X86_64 +Sections: + - Name: .dynamic + Type: SHT_DYNAMIC + Entries: + - Tag: DT_SYMTAB + Value: 0x0 + - Tag: DT_NULL + Value: 0 + - Name: .dynsym + Type: SHT_DYNSYM + - Name: .mydynsym + Type: SHT_DYNSYM +## The Content describes 2 symbols: zero symbol and symbol with st_name == 3. + Content: "000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000" +DynamicSymbols: + - Name: foo +ProgramHeaders: + - Type: PT_LOAD + VAddr: 0x0000 + Sections: + - Section: .mydynsym |
