Re: Building DLL with GNAT to be used with non-Ada application on Windows : some doubts

[David Sauvage <david.sauvage@adalabs.com>]

On Mar 28, 5:05 pm, Jérôme Haguet <j.hag...@cadwin.com> wrote:
> Hello
>
> My configuration : GNAT GPL 2011 / Windows 7
>
> Some years ago, I had built a DLL with gnat.
> As it was supposed to be used with non-Ada application, I had to export and call an initialization routine.
> As detailed in §G.11 Gnat UG.
> This was done with a simple makefile, calling gnatmake then gnatdll.
>
> This process is still working with Gnat GPL 2011.
>
> Now, I am trying to do the same with a gpr file.
> I am able to build a DLL to be used with Ada application (in this case using GNAT shared runtime)
> As detailed in $G.10 in Gnat UG.
> But I am not able to build a DLL exporting its own initialization routine.
> When building the library, the linker fails with following message:
> my_ada_lib.o:my_ada_lib.adb:(.text+0x77): undefined reference to `adainit'
> my_ada_lib.o:my_ada_lib.adb:(.text+0x87): undefined reference to `adafinal'
>
> Is it possible or not ?
> If yes, what is the setting I have omitted ?
>
> My gpr :
>
> library project my_ada_lib is
>
>    for Languages use ("Ada");
>
>    for Library_Name use "my_ada_lib";
>    for Library_Kind use "dynamic";
>
>    for Source_Dirs use (".");
>    for Object_Dir   use "obj";
>    for Library_Dir  use "..";
>
> end my_ada_lib;

Would they be my_ada_libinit & my_ada_libfinal in your case ?

Cheers

$ nm libmy_ada_lib.so | grep init