Combined Relocation Sections

Relocations by default are grouped by the sections against which they are to be applied. However, when an object is built with the -zcombreloc option, all but the Procedure Linkage Table relocations are placed into a single common section named .SUNW_reloc.

Combining relocation records in this manner allows all RELATIVE relocations to be grouped together, and all symbolic relocations to be sorted by symbol name. The grouping of RELATIVE relocations permits optimized runtime processing using the DT_RELACOUNT/DT_RELCOUNT .dynamic entries, and, sorted symbolic entries help reduce runtime symbol lookup.