/* BEGIN INCLUDE FILE ... cobol_linkage_header.incl.pl1 */ /* Last modified 07/19/78 by RAL to conform with MULTICS standard linkage map */ /* Last modified June 26, 1974 by AEG */ declare 1 linkage_header aligned based(link_base_ptr), 2 pad bit(36), 2 def_section_relp bit(18) unaligned, 2 first_reference_relp bit(18) unaligned, 2 obsolete_ptr ptr unal, 2 original_linkage_ptr ptr unal, 2 unused bit (72), 2 links_relp bit(18) unaligned, 2 linkage_section_length bit(18) unaligned, 2 object_seg bit(18) unaligned, 2 obsolete_length bit(18) unaligned; /* link_base_ptr is a pointer to the base of the linkage section and is an element of the structure cobol_ located in cobol_external_seg. pad is reserved for future use and must be zero. def_section_relp is a pointer (relative to the base of the object segment) to the base of the definition section. first_reference_relp is a pointer (relative to the base of the linkage section) to the array of first-reference traps. If the value of this item is "0"b then there are no first-reference traps. obsolete_ptr for historical reasons, linkage sections are sometimes threaded together to form a linkage list. This variable is a pointer to the next linkage section on the thread. This variable is described for completemess; it is not intended for general use. original_linkage_ptr is a pointer to the original link- age section within the object seg- ment. It is used by the link un- snapping mechanism. It is init- ialized by the linker. links_relp is a pointer (retative to the base of the linkage section) to the first link (the base of the link structure). linkage_section_length is the length in words of the linkage section. object_seg is the segment number of the object segment. It is initialized by the linker. obsolete_length when several linkage sections are combined into a list, this item (in the first linkage section in the list) contains the length of the entire list. See the above discussion under obsolete_ptr. */ /* END INCLUDE FILE ... cobol_linkage_header.incl.pl1 */ */ ----------------------------------------------------------- Historical Background This edition of the Multics software materials and documentation is provided and donated to Massachusetts Institute of Technology by Group Bull including Bull HN Information Systems Inc. as a contribution to computer science knowledge. This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology, Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell Bull Inc., Groupe Bull and Bull HN Information Systems Inc. to the development of this operating system. Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970), renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture for managing computer hardware properly and for executing programs. Many subsequent operating systems incorporated Multics principles. Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. . ----------------------------------------------------------- Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without fee is hereby granted,provided that the below copyright notice and historical background appear in all copies and that both the copyright notice and historical background and this permission notice appear in supporting documentation, and that the names of MIT, HIS, Bull or Bull HN not be used in advertising or publicity pertaining to distribution of the programs without specific prior written permission. Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc. Copyright 2006 by Bull HN Information Systems Inc. Copyright 2006 by Bull SAS All Rights Reserved */