--********************************************************************************************************************
-- Created:  9-Mar-2021 22:28:26 by OpenVMS SDL EV3-3      
-- Source:  22-APR-1993 11:17:44 $1$DGA8085:[LIB_ADA.LIS]IAFDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package IAFDEF is
 
--  module $IAFDEF
 
--+
-- IAF - IMAGE ACTIVATOR FIXUP SECTION
--
-- THE IMAGE ACTIVATOR FIXUP SECTION IS AN IMAGE SECTION THAT IS CREATED
-- BY THE LINKER AND USED BY THE IMAGE ACTIVATOR TO MODIFY THE IMAGE AS
-- IT IS ACTIVATED.  THIS IS DONE TO MAINTAIN THE POSITION INDEPENDENCE
-- OF EXTERNAL REFERENCES.
---
 
    IAF_K_LENGTH		: constant := 64;			--  Length of fixed area 
    IAF_C_LENGTH		: constant := 64;			--  Length of fixed area 
    IAF_S_IAFDEF		: constant := 64;
 
    type IAF_FLAGS_TYPE is						--  Flags 
	record
	    SHR		: BOOLEAN;					--  This is in a shareable image 
	    FILLER_1	: UNSIGNED_15;
	end record;
 
	    for IAF_FLAGS_TYPE use 
		record
		    SHR		at 0 range 0 .. 0;
		    FILLER_1	at 0 range 1 .. 15;
		end record;
	    for IAF_FLAGS_TYPE'SIZE use 16;
 
    IAF_FLAGS_TYPE_INIT : constant IAF_FLAGS_TYPE := 
	    (SHR	=> FALSE,
	    FILLER_1	=> 0);
 
    type IAF_TYPE is
	record
	    IAFLINK	: ADDRESS;					--  Link for image activator use 
	    FIXUPLNK	: ADDRESS;					--  Link for shareable image fixups 
	    SIZE	: UNSIGNED_WORD;				--  Size of fixed part of IAF 
	    FLAGS	: IAF_FLAGS_TYPE;				--  Flags 
	    G_FIXOFF	: UNSIGNED_LONGWORD;				--  Offset to g^ address data 
	    DOTADROFF	: UNSIGNED_LONGWORD;				--  Offset to .address fixup data 
	    CHGPRTOFF	: UNSIGNED_LONGWORD;				--  Offset to isect change prot. data 
	    SHLSTOFF	: UNSIGNED_LONGWORD;				--  Offset to shareable image list 
	    SHRIMGCNT	: UNSIGNED_LONGWORD;				--  Number of shareable images in shlst 
	    SHLEXTRA	: UNSIGNED_LONGWORD;				--  Number of extra shareable images allowed 
	    PERMCTX	: ADDRESS;					--  Permanent sharable image context 
	    FILLER_1	: UNSIGNED_LONGWORD;				--  Spare 
	    FILLER_2	: UNSIGNED_LONGWORD;				--  Spare 
	    FILLER_3	: UNSIGNED_LONGWORD;				--  Spare 
	    FILLER_4	: UNSIGNED_LONGWORD;				--  Spare 
	    FILLER_5	: UNSIGNED_LONGWORD;				--  Spare 
	    FILLER_6	: UNSIGNED_LONGWORD;				--  Spare 
	end record;
 
	    for IAF_TYPE use 
		record
		    IAFLINK	at 0 range 0 .. 31;
		    FIXUPLNK	at 4 range 0 .. 31;
		    SIZE	at 8 range 0 .. 15;
		    FLAGS	at 10 range 0 .. 15;
		    G_FIXOFF	at 12 range 0 .. 31;
		    DOTADROFF	at 16 range 0 .. 31;
		    CHGPRTOFF	at 20 range 0 .. 31;
		    SHLSTOFF	at 24 range 0 .. 31;
		    SHRIMGCNT	at 28 range 0 .. 31;
		    SHLEXTRA	at 32 range 0 .. 31;
		    PERMCTX	at 36 range 0 .. 31;
		    FILLER_1	at 40 range 0 .. 31;
		    FILLER_2	at 44 range 0 .. 31;
		    FILLER_3	at 48 range 0 .. 31;
		    FILLER_4	at 52 range 0 .. 31;
		    FILLER_5	at 56 range 0 .. 31;
		    FILLER_6	at 60 range 0 .. 31;
		end record;
	    for IAF_TYPE'SIZE use 512;
 
    IAF_TYPE_INIT : constant IAF_TYPE := 
	    (IAFLINK	=> ADDRESS_ZERO,
	    FIXUPLNK	=> ADDRESS_ZERO,
	    SIZE	=> 0,
	    FLAGS	=> IAF_FLAGS_TYPE_INIT,
	    G_FIXOFF	=> 0,
	    DOTADROFF	=> 0,
	    CHGPRTOFF	=> 0,
	    SHLSTOFF	=> 0,
	    SHRIMGCNT	=> 0,
	    SHLEXTRA	=> 0,
	    PERMCTX	=> ADDRESS_ZERO,
	    FILLER_1	=> 0,
	    FILLER_2	=> 0,
	    FILLER_3	=> 0,
	    FILLER_4	=> 0,
	    FILLER_5	=> 0,
	    FILLER_6	=> 0);
 
end IAFDEF;