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Newsgroups: comp.lang.ada
Date: Tue, 11 Feb 2014 09:48:53 -0800 (PST)
In-Reply-To: <85zjm2yorr.fsf@stephe-leake.org>
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Subject: Re: Tools Generating Ada
From: Vincent DIEMUNSCH <vincent.diemunsch@gmail.com>
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Xref: news.eternal-september.org comp.lang.ada:18484
Date: 2014-02-11T09:48:53-08:00
List-Id: <comp.lang.ada>

On Saturday, February 8, 2014 9:47:20 AM UTC+1, Stephen Leake wrote:
> Vincent writes:
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>=20
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> > Hello everybody,
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> >
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> > I have a question regarding Ada Code Generation tools, like Aflex /
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> > Ayacc for instance. How can I insert them into the automatic build
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> > process ?=20
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> Yes; you have to write an XML file to tell gprbuild about the tool.
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> I did this for Auto_Text_IO, which produces *.Text_IO packages from Ada
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> packages.
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> The process is not well documented, and the XML file often needs
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> tweaking with new releases of the GNAT compiler; I submit a bug report
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> to find out how to tweak. I don't recommend doing this without an
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> AdaCore support contract. Unless you have read and understand all of the
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> gprbuild source :).
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> >I use GNAT=A0GPL, so is it possible to create a GPRBuild
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> > project that generates Ada files from an AYacc source and then compile
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> > the Ada sources ?=20
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> That takes two projects, to keep the source information distinct.
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> >Do I need to use a make file ?=20
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> No, the project that compiles the Ada code can 'with' the project that
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> produces the Ada code.
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> However, gprbuild doesn't always get the dependencies right; sometimes
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> you have to run it twice.
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> >Where can I find
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> > examples ?
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> Here. This works with GNAT 7.1.2, and probably with GPL 2013:
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> with "sal_text_io";
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> project Common_Text_IO is
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>    for Languages use ("Auto_Text_IO");
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>    for Source_Dirs use
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>      ("../1553",
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>       "../base",
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>       "../base/test",
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>       "../models",
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>       "../../opentoken");
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>    for Object_Dir use "auto";
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>    for Source_Files use
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>      ("gds-hardware-bus_1553-time_tone.ads",
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>       "gds-unconstrained_arrays.ads",
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>       "simple_flight-rwa.ads",
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>       "simple_flight-safehold_css.ads");
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>=20
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>    package Compiler is
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>       for Default_Switches ("Auto_Text_IO") use ("-05");
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>    end Compiler;
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> end Common_Text_IO;
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> with "opentoken";
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> with "sal";
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> with "standard_common";
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> with "../common_text_io";
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> project GDS is
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>=20
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>    for Source_Dirs use
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>      ("../auto",
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>       "../../1553",
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>       "../../asist_if",
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>       "../../base",
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>       "../../fpga",
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>       "../../hardware",
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>       "../../itos_if",
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>       "../../models",
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>       "../../models/sofa",
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>       "../../spacewire",
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>       "../../system",
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>       "../../windows");
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>    for Object_Dir use "objects";
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>    for Exec_Dir use ".";
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>=20
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>    for Languages use ("Ada", "C");
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>=20
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>    package Compiler is
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>       for Default_Switches ("Ada") use
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>         Standard_Common.Compiler.Release_Switches &
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>         Standard_Common.Compiler.Style_Checks &
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>         Standard_Common.Compiler'Default_Switches ("Ada");
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>=20
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>       for Local_Configuration_Pragmas use "../gnat_config_pragmas.adc";
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>=20
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>       for Default_Switches ("C") use Standard_Common.Compiler.Release_Swi=
tches_C;
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>=20
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>    end Compiler;
>=20
>=20
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>    package Binder is
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>       for Default_Switches ("Ada") use Standard_Common.Binder'Default_Swi=
tches ("Ada");
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>    end Binder;
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>=20
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>    package Builder is
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>       for Default_Switches ("Ada") use Standard_Common.Builder'Default_Sw=
itches ("Ada");
>=20
>=20
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>       --  We use ".exe" extension even on non-Windows, to simplify the ma=
kefiles.
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>       for Executable_Suffix use ".exe";
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>    end Builder;
>=20
>=20
>=20
> end GDS;
>=20
>=20
>=20
> ---- auto_text_io.xml -----
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> <?xml version=3D"1.0" ?>
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> <!-- Run auto_text_io
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>=20
>=20
> To tell gprbuild how to run auto_text_io:
>=20
>=20
>=20
> copy this file to <gnat>/share/gprconfig
>=20
>=20
>=20
> use gprbuild - -autoconf
>=20
>=20
>=20
> -->
>=20
> <gprconfig>
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>   <compiler_description>
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>     <name>Auto_Text_IO</name>
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>     <executable prefix=3D"-1">auto_text_io.exe</executable>
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>     <languages>Auto_Text_IO</languages>
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>     <version>
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>       <external>auto_text_io.exe -?</external>
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>       <grep regexp=3D"auto_text_io version .*"/>
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>     </version>
>=20
>     <!-- target must match gprconfig target -->
>=20
>     <target>
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>       <external>${PREFIX}gcc -dumpmachine</external>
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>       <grep regexp=3D"[^\r\n]+"></grep>
>=20
>     </target>
>=20
>   </compiler_description>
>=20
>=20
>=20
>   <configuration>
>=20
>     <compilers>
>=20
>       <compiler language=3D"Auto_Text_IO"/>
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>     </compilers>
>=20
>     <config>
>=20
>    package Compiler is
>=20
>       for Driver ("Auto_Text_IO") use "${PATH(auto_text_io)}auto_text_io.=
exe";
>=20
>       for Include_Path ("Auto_Text_IO") use "ADA_INCLUDE_PATH";
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>       for Required_Switches ("Auto_Text_IO") use ("-f");
>=20
>       for Dependency_Switches ("Auto_Text_IO") use ("-M");
>=20
>    end Compiler;
>=20
>    package Naming is
>=20
>       for Body_Suffix ("Auto_Text_IO") use ".ads";
>=20
>    end Naming;
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>    for Inherit_Source_Path ("Auto_Text_IO") use ("Ada");
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>    for Object_Generated ("Auto_Text_IO") use "false";
>=20
>     </config>
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>   </configuration>
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> </gprconfig>
>=20
>=20
>=20
>=20
>=20
>=20
>=20
> --=20
>=20
> -- Stephe

Thank you very much for your complete response !
I'll try this, maybe with the help of AdaCore's support.

By the way, does GPRBuild creates "ali" files for an external tool ?
If not, then how can it knows what the dependencies ares ?
Does your tool creates an ali file ?

Kind regards,

Vincent