Ada Shared Libray on Linux

Ada Shared Libray on Linux

[Rainer Welzel]

Hi,
how can I create a Shared Libray from Ada on Linux (gnatmake).
I wont to use some Ada Code inside Borland Kylix.

Thanks in advance
                               Rainer Welzel

Re: Ada Shared Libray on Linux

[Florian Weimer]

"Rainer Welzel" <brigitte.welzel@t-online.de> writes:

> how can I create a Shared Libray from Ada on Linux (gnatmake).

I think the GtkAda sources contain an example.  The idea is to compile
some stub file which 'with's all units at (Ada) library level using
gnatmake and supply thie '-fPIC' flag.  The resulting object files can
be linked with 'gcc -shared -o libsuchandsuch.so *.o' or a similar
command.

> I wont to use some Ada Code inside Borland Kylix.

Don't forget to initialize the Ada environment from your Kylix
program.

Re: Ada Shared Libray on Linux

[David Hoffman]

Hi,

> Don't forget to initialize the Ada environment from your Kylix
> program.

In general, how does one do this?

Re: Ada Shared Libray on Linux

[Gerhard Häring]

On 27 Jun 2001 15:19:55 -0700, David Hoffman <hoffman@insync.net> wrote:
>Hi,
>
>> Don't forget to initialize the Ada environment from your Kylix
>> program.
>
>In general, how does one do this?

It's described in detail in the GNAT users guide. You should call adainit and
adafinal respectively.

Gerhard
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Re: Ada Shared Libray on Linux

[Simon Wright]

gerhard.nospam@bigfoot.de (Gerhard =?iso-8859-1?Q?H=E4ring?=) writes:

> On 27 Jun 2001 15:19:55 -0700, David Hoffman <hoffman@insync.net> wrote:
> >Hi,
> >
> >> Don't forget to initialize the Ada environment from your Kylix
> >> program.
> >
> >In general, how does one do this?
> 
> It's described in detail in the GNAT users guide. You should call
> adainit and adafinal respectively.

Is that going to cause interesting issues if you have >1 shared
library? or if you link an Ada .so with an Ada main?

Re: Ada Shared Libray on Linux

[Florian Weimer]

Simon Wright <simon@pushface.org> writes:

>> It's described in detail in the GNAT users guide. You should call
>> adainit and adafinal respectively.
> 
> Is that going to cause interesting issues if you have >1 shared
> library? 

Yes, this can be a bit tricky, I think.

> or if you link an Ada .so with an Ada main?

In case of an Ada main, the binder takes care of this (at least if the
shared objects aren't treated as opaque).