1. Oracle Solaris 11.4 Linkers and Libraries Guide
  2. Linker and Libraries Advanced Topics
  3. Mapfiles in the Link-Editor
  4. Mapfile Directives
  5. LOAD, NOTE, NULL, and RESERVE_SEGMENT Directives
  6. OS_ORDER Attribute (LOAD, NOTE, NULL)

OS_ORDER Attribute (LOAD, NOTE, NULL)

The link-editor normally places output sections into the segment in the order they are encountered. The OS_ORDER attribute can be used to alter this default placement of output sections. OS_ORDER specifies a space separated list of output section names (section_name). The listed sections are placed at the head of the segment, sorted in the order given by OS_ORDER. Sections not listed in OS_ORDER are placed following the sorted sections, in the order they are encountered.

When the "=" form of assignment is used, the previous value of OS_ORDER for the given segment is discarded, and replaced with the new list. The "+=" form of OS_ORDER concatenates the new list to the end of the existing list.