DWARF output from Gnat on a Windows platform.

DWARF output from Gnat on a Windows platform.

[Marin David Condic]

Someone suggested I investigate the availability of getting DWARF output 
from the Gnat compiler on a Windows platform. I am not terribly familiar 
with DWARF (or ELF - but I've encountered the buzzwords at least & have 
some idea what its all about.) so I don't know what the issues may be. 
We were looking into applications that would involve needing information 
from a symbol table and this came up as a possibility. Any info would be 
appreciated. Thanks.

MDC

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Marin David Condic
I work for: http://www.belcan.com/
My project is: http://www.jsf.mil/NSFrames.htm

Send Replies To: m   o   d   c @ a   m   o   g
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     "Trying is the first step towards failure."
         --  Homer Simpson

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Re: DWARF output from Gnat on a Windows platform.

[Jeff C,]

I can't really comment as to whether you would really need DWARF for this
but Iwould
imaging that  using the -gdwarf-2 option to a up to date gcc release would
cause either the compiler to die, do nothing or write DWARF output
as requested.


Have you looked at

http://savannah.nongnu.org/projects/bfdada/



"Marin David Condic" <nobody@noplace.com> wrote in message
news:3FB459E2.4040703@noplace.com...
> Someone suggested I investigate the availability of getting DWARF output
> from the Gnat compiler on a Windows platform. I am not terribly familiar
> with DWARF (or ELF - but I've encountered the buzzwords at least & have
> some idea what its all about.) so I don't know what the issues may be.
> We were looking into applications that would involve needing information
> from a symbol table and this came up as a possibility. Any info would be
> appreciated. Thanks.
>
> MDC
>
> -- 
> ======================================================================
> Marin David Condic
> I work for: http://www.belcan.com/
> My project is: http://www.jsf.mil/NSFrames.htm
>
> Send Replies To: m   o   d   c @ a   m   o   g
>                     c   n   i       c   .   r
>
>      "Trying is the first step towards failure."
>          --  Homer Simpson
>
> ======================================================================
>

Re: DWARF output from Gnat on a Windows platform.

[Marin David Condic]

I'll try the switch & see what happens. I had not seen the web page, but 
it looks like there may at least be some information to be gleaned from 
there. Basically, we have something (written in Ada) that is utilizing 
DWARF as its input. We'd like to see if we could use it in the PC world 
under Windows. I don't know if that's possible - hence the fishing 
expedition.

AFAIK, DWARF is something that is connected to ELF with ELF being an 
object file format and DWARF being the debugging data. Gnat may be able 
to generate it, but since Gnat uses native host linkers, is it likely 
that it is going to make ELF/DWARF for a PC? AFAIK, the PC linker isn't 
going to suck up ELF object files so the data (if it could be produced) 
wouldn't do much good. It might work if there was a whole PC based 
ELF/DWARF linking kit that could be used instead of the native PC 
linker, but that's kind of going about it the hard way.

But you don't know until you investigate. Thanks for the info & we'll 
see if anything comes out of this thread.

MDC



Jeff C, wrote:
> I can't really comment as to whether you would really need DWARF for this
> but Iwould
> imaging that  using the -gdwarf-2 option to a up to date gcc release would
> cause either the compiler to die, do nothing or write DWARF output
> as requested.
> 
> 
> Have you looked at
> 
> http://savannah.nongnu.org/projects/bfdada/
> 
> 

-- 
======================================================================
Marin David Condic
I work for: http://www.belcan.com/
My project is: http://www.jsf.mil/NSFrames.htm

Send Replies To: m   o   d   c @ a   m   o   g
                    c   n   i       c   .   r

     "Trying is the first step towards failure."
         --  Homer Simpson

======================================================================