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From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: Debugging Ada
Date: Wed, 21 Dec 2011 08:45:43 -0800 (PST)
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Date: 2011-12-21T08:45:43-08:00
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awdorrin wrote on comp.lang.ada:
> During elaboration, the Ada code is setting a constant string that it
> retrieves from another package:
>
> LAN_CFG_FILE : constant String := SysConfig.Cfg_Filename( LAN_CFG );
[...]
> When I try to get the address of LAN_CFG_FILE in GDB, so I can set a
> watch, I get the response:
>
> "Attempt to take address of value not located in memory."

It looks like the value of LAN_CFG_FILE is preelaborated, i.e.
determined at compile time and hardcoded into the object file. In this
case, something must be overwriting it later but still at link time,
before your program runs.

--
Ludovic Brenta.