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. ALIGN Attribute (LOAD, RESERVE)

ALIGN Attribute (LOAD, RESERVE)

The ALIGN attribute is used to specify the alignment for a loadable segment. The value specified is set in the p_align field of the program header corresponding to the segment. Segment alignment is used in calculating the virtual address of the beginning of the segment.

The alignment specified must be 0 or a power of 2. By default, the link-editor sets the alignment of a segment to the built-in default. This default differs from one CPU to another and might even be different between software revisions.

The ALIGN attribute is related to the PADDR and VADDR attributes, and must be compatible with them.