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From: DrPi <314@drpi.fr>
Subject: Re: Record initialisation question
Date: Fri, 15 Jan 2021 08:49:32 +0100
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> 
> You could try Unchecked_Conversion or System.Storage_Units.To_Integer.
> 
They are not compatible with no elaboration code.
Generally, using a function call is not compatible with no elaboration code.

> But my suggestion did not involve such conversions: I assumed that you 
> would be able to compute, using static universal-integer expressions, 
> the addresses for all your flash objects, and use those directly in the 
> record aggregates. This assumes that you are able to define the lay-out 
> of all the stuff in the flash. You might then also specify the 'Address 
> of each flash object, using those same universal-integer expressions.
> 
> Something like this (not tested with a compiler):
> 
>     Flash_Start : constant := 16#500#;
> 
>     Obj_A_Addr : constant := Flash_Start;
> 
>     Obj_B_Addr : constant := Obj_A_Addr + 16#234#;
>     -- Here 16#234# is supposed to be the size of Obj_A, so that
>     -- Obj_B follows Obj_A in flash.
> 
>     Obj_A : constant Dcd_T := (
>        Next => Obj_B_Addr,
>        ...);
> 
>     for Obj_A'Address
>        use System.Storage_Elements.To_Address (Obj_A_Addr);
> 
System.Storage_Elements is not compatible with no elaboration code.