1. Oracle Solaris 11.4 Linkers and Libraries Guide
  2. ELF Application Binary Interface
  3. Object File Format
  4. Symbol Table Section
  5. Symbol Sort Sections
  6. By-Name Symbol Sort Sections

By-Name Symbol Sort Sections

A single by-name symbol sort section provides access to both regular symbols and thread-local storage symbols.

The link-editor produces the following by-name symbol sort sections.

.SUNW_dynsymnsort

A section of type SHT_SUNW_SYMNSORT, containing indexes to symbols in the combined .SUNW_ldynsym – .dynsym symbol table, sorted by name, in lexical order.

.SUNW_symtabnsort

A section of type SHT_SUNW_SYMNSORT, containing indexes to symbols in the .symtab symbol table, sorted by name, in lexical order.

The .SUNW_dynsymnsort section requires that a .SUNW_ldynsym section be present. Therefore, use of the -z noldynsym option also prevents the creation of the .SUNW_dynsymnsort sort section.

The link-editor uses the following rules, in the order that is shown, to select which symbols are referenced by these sort sections.

  • The symbol must have a function or variable type: STT_FUNC, STT_OBJECT, STT_COMMON, or STT_TLS.

  • The symbol must not be undefined.