Greater flexibility in executing an alternative link-editor is provided with the link-editor -z altexec64 option, and the LD_ALTEXEC environment variable.
Symbol definitions that are generated using mapfiles can now be associated to ELF sections. See SYMBOL_SCOPE / SYMBOL_VERSION Directives.
The link-editor and runtime linker provide for the creation of static TLS within shared objects. In addition, a backup TLS reservation is established to provide for limited use of static TLS within post-startup shared objects. See Program Startup.