In addition to the Segment Types defined in the System V Application Binary Interface, Edition 4.1 and System V Application Binary Interface - DRAFT - 17 December 2003 the following Segment Types shall also be supported.
The array element specifies the location and size of the exception handling information as defined by the .eh_frame_hdr section.
The p_flags member specifies the permissions on the segment containing the stack and is used to indicate wether the stack should be executable. The absense of this header indicates indicates that the stack will be executable.