Re: Help: Ada in NetBSD

[Fernando Oleo Blanco <irvise_ml@irvise.xyz>]

On 29.08.21 15:19, Stephane Carrez wrote:
> Hi!
> 
> On NetBSD there are several symbols that are replaced by the virtue of including a C header.
> If you include correctly the C header, the correct symbol is used and you don't get the linker warning.

That is what I did by adding the indicated header files to the NetBSD 
section of the init.c file. No other systems have them there (or 
anywhere in some cases). I expected that to fix the issue, but it did not.

> For gettimeofday the symbol is replaced by __gettimeofday50.
> These symbols are marked with __RENAME(XXX) macros in the C headers.

I saw a few of those... So that is what they do... I never got to the 
bottom of that rabbit hole.

> I would suggest to have a look at the .o files to find out the one that has the `gettimeofday` symbol that is not replaced.

I am doing it right now, lets see what I can find... However, as I said, 
the headers should have been already included. The linker does not 
complain during the compilation of gcc. Only when I try to build things 
with the newly created toolchain. Maybe that is a clue...

> By the way, I'm intertested by your work as I'm still stuck on gcc 6 for my NetBSD machines.
> 20 years ago I wrote the 68HC11 port that was integrated in GCC 3.3 so I have some past experience in working with GCC.
> Despite my very limited spare time, I could have a look if you provide me the sources of your port :-)

I am working directly on pkgsrc/wip. This way I hope to be able to 
upstream everything as quickly as possible. Jay Patelani already 
uploaded the patches from the initial blog post. You can find them here: 
https://github.com/NetBSD/pkgsrc-wip/tree/c550eafe889691af212379590974944e1359e180/gcc10_aux

It is basically the gcc10 entry with the patch-ada* file in patches and 
Ada added to the USE_LANGUAGES variable (is has to be hardcoded, it 
cannot be set via options). It is not a clean snapshot, some dirty files 
were pulled, but it should work as first order approximation. The 
previous email contains some extra patches (though you would have to 
update the distinfo file manually). I was lucky that the pkgsrc got 
changed a few months back to make gcc6-aux the default, instead of gcc5-aux.

I will ask you to take a look if I need to. However, this is "my 
personal project" I want to do this myself, so for the time being, no 
need for that :) I would like to see Ada running on as many systems and 
package managers as possible ;)

P.S: I am yet to try your AWA, I am looking forwards to it.

Regards,

-- 
Fernando Oleo Blanco
https://irvise.xyz