Ada and linux: pragma import how to

Ada and linux: pragma import how to

[Francesco PIRANEO GIULIANO]

Gentleman,

for an application that want to drive the linux framebuffer I'm trying
to import the open and ioctl C functions to be used with Ada.

I'm quite new in that language so I need some detailed information on
how to pass and retrieve arguments / results from imported functions /
procedures and well understand differences between import function and
import _valued_ function.

Can you provide me some documentation source about these two topics?
Does anyone can provide me books reference about using Ada with Linux?
I've found the "Big book of linux ada programming" and obviously the
Ada reference manual but I need something with a more practical
approach to understand...

Thank you very much!
Francesco

Re: Ada and linux: pragma import how to

[Jerry]

On Oct 1, 1:34 pm, Francesco PIRANEO GIULIANO
<liste.fpira...@gmail.com> wrote:
> Gentleman,
>
> for an application that want to drive the linux framebuffer I'm trying
> to import the open and ioctl C functions to be used with Ada.
>
> I'm quite new in that language so I need some detailed information on
> how to pass and retrieve arguments / results from imported functions /
> procedures and well understand differences between import function and
> import _valued_ function.
>
> Can you provide me some documentation source about these two topics?
> Does anyone can provide me books reference about using Ada with Linux?
> I've found the "Big book of linux ada programming" and obviously the
> Ada reference manual but I need something with a more practical
> approach to understand...
>
> Thank you very much!
> Francesco

If you are using GNAT, see the GNAT User's Guide

http://gcc.gnu.org/onlinedocs/gnat_ugn_unw/index.html#Top

specifically

http://gcc.gnu.org/onlinedocs/gnat_ugn_unw/Mixed-Language-Programming.html#Mixed-Language-Programming

or even

http://gcc.gnu.org/onlinedocs/gnat_ugn_unw/Generating-Ada-Bindings-for-C-and-C_002b_002b-headers.html#Generating-Ada-Bindings-for-C-and-C_002b_002b-headers

Jerry