Re: [No_Elaboration_Code] GNAT still generating rep_to_pos, why?

["Luke A. Guest" <laguest@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk>]

On Fri, 02 Jan 2004 16:17:59 -0500, Stephen Leake wrote:

> At the same time, it wouldn't hurt to send a message to
> report@gnat.com, describing what you are doing and what you'd like to

Well, I did that and here's the reply:

Luke A. Guest wrote:

 > I'm currently using GCC-3.3.2 with the FSF GNAT package.

Sorry, we don't provide any kind of support for versions of GNAT
compiled from the FSF sources at this address. But I have added a
couple of notes below.

> I have a package which has all my definitions and types needed by the
> functions in the ARCS PROM. I have also needed to add the
> No_Elaboration_Code pragma to get static initialisation code much like
> that of C. Now, here are the problems:

No_Run_Time is no longer a supported or documented pragma

> 1) There are two <enum type>_rep_to_pos functions generated but never
> used (it doesn't need them).
> 
> 2) I have set up my SP_Block record instance to be located at a
> particular memory address, yet the compiler still generates code to
> initialise this structure.

Although it is in fact working as intended.

> I have had to add the following GCC options "-ffunction-sections
> -fdata-sections" and linker option "--gc-sections" to remove the
> redundant code.

We do not claim to support these options, so you are on your own
if you use them

> I have this in my gnat.adc file:
> 
> pragma No_Run_Time;
> pragma Restrictions(No_Exceptions);
> 
> I also included this "pragma preelaborate" in my ARCS_Prom package.
> 
> You can see the rest of the conversation in comp.lang.ada
> "[No_Elaboration_Code] GNAT still generating rep_to_pos, why?"

Sorry, I do not read comp.lang.ada (and have not for a long time). 
Perhaps someone there can help you further.