The -z rescan option provides reater flexibility in specifying archive libraries to a link-edit. See "Position of an Archive on the Command Line".
The -z ld32 and -z ld64 options provide greater flexibility in using the link-editor support interfaces. See "32-Bit and 64-Bit Environments".
Additional link-editor support interfaces ld_input_done(), ld_input_section(), ld_input_section64() and ld_version() have been added. See "Support Interface Functions".
Environment variables interpreted by the runtime linker can now be established for multiple processes by specifying them within a configuration file. See the -e and -E options of crle(1).
Support for more than 32,768 procedure linkage table entries within 64-bit SPARC objects has been added. See "SPARC: 64-bit Procedure Linkage Table".
An mdb(1) debugger module enables you to inspect runtime linker data structures a part of process debugging. See "Debugger Module".
The bss segment declaration directive makes the creation of a bss segment easier. See "Segment Declarations".