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gelf_getsymshndx (3)
  • >> gelf_getsymshndx (3) ( FreeBSD man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    gelf_getsymshndx
    
     
    gelf_update_symshndx
    
     - read and update symbol information using extended section indices
    
     
    

    LIBRARY

    Lb libelf
    
     
    

    SYNOPSIS

       #include <gelf.h>
    GElf_Sym * Fo gelf_getsymshndx Fa Elf_Data *symdata Fa Elf_Data *xndxdata Fa int ndx Fa GElf_Sym *sym Fa Elf32_Word *xndxptr Fc Ft int Fo gelf_update_symshndx Fa Elf_Data *symdata Fa Elf_Data *xndxdata Fa int ndx Fa GElf_Sym *sym Fa Elf32_Word xndx Fc  

    DESCRIPTION

    These functions are analogous to gelf_getsym ();
    and gelf_update_sym ();
    respectively, but are capable of handling symbol tables using extended section numbering.

    Argument symdata is an Vt Elf_Data descriptor associated with a section of type SHT_SYMTAB Argument xndxdata is an Vt Elf_Data descriptor associated with a section of type SHT_SYMTAB_SHNDX Argument ndx is the index of the symbol table entry being retrieved or updated. Argument sym is a pointer to a class-independent Vt GElf_Sym structure. Vt GElf_Sym structures are described in detail in gelf(3).

    Function gelf_getsymshndx ();
    retrieves symbol information at index ndx from the data descriptor specified by argument symdata and stores in class-independent form in argument sym In addition it retrieves the extended section index for the symbol from data buffer xndxdata and stores it into the location pointed to by argument xndxptr

    Function gelf_update_symshndx ();
    updates the underlying symbol table entry in data descriptor symdata with the information in argument sym In addition it sets the extended section index in data buffer xndxdata to the value of argument xndx  

    RETURN VALUES

    Function gelf_getsymshndx ();
    returns the value of argument sym if successful, or NULL in case of an error.

    Function gelf_update_symshndx ();
    returns a non-zero value if successful, or zero in case of an error.  

    ERRORS

    These functions may fail with the following errors:

    Bq Er ELF_E_ARGUMENT
    Arguments symdata xndxdata xndxptr or sym were NULL.
    Bq Er ELF_E_ARGUMENT
    Argument ndx was less than zero, or too large for either of descriptors symdata or xndxdata
    Bq Er ELF_E_ARGUMENT
    Data descriptor symdata was not associated with a section of type SHT_SYMTAB
    Bq Er ELF_E_ARGUMENT
    Data descriptor xndxdata was not associated with a section of type SHT_SYMTAB_SHNDX
    Bq Er ELF_E_ARGUMENT
    Data descriptor symdata and xndxdata were associated with different ELF objects.

     

    SEE ALSO

    elf(3), elf_getdata3, elf_getscn3, gelf(3), gelf_getsym3, gelf_update_sym3


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    SEE ALSO


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