[Vm-dev] [Newbies] Help with FFI

[Tobias Pape]

Dear any-time ckeen

> On 4. Feb 2022, at 10:10, Christian Kellermann <ckeen at pestilenz.org> wrote:
> 
> * Christian Kellermann <ckeen at pestilenz.org> [210210 17:09]:
>> I want to find my way around the FFI module and how to use it in squeak.
>> No let's step back. I want to use a a binding to libsodium form Tony
>> (https://www.eighty-twenty.org/2013/06/11/nacl-for-squeak-and-pharo)
>> and ended up using the Crypto-Nacl-HernanMoralesDurand.13.mcz package
>> as the most recent one from Tony seemed to be Pharo's FFI syntax, as Tobias suggested to me.
>> 
>> However each of the supplied tests return a 'module not found error' on my
>> 64 bit Linux Squeak 5.3+updates with the bundled VM.
>> 
>> So I tried the Unix examples there and none of those work either, so
>> before I dig deeper into this I'd like to get some kind of re-assurance
>> of what I should expect to work on this particular setup.
>> 
>> The FFI Tests from the bundled package all pass though.
>> 
>> So my questions are:
>> 
>> 1. Are the Unix FFI examples supposed to work?
>> 2. Is the Crypto-Nacl package I want to use recent enough for the FFI?
>> 3. Is the documentation in swiki still up to date for squeak 5.3?
>> 4. What's the logic for searching and loading the shared object to bind to
>>   and where do I have to look in the opensmalltalk-vm code?
> 
> Dear future C-Keen and archive googlers,
> 
> To answer my own question here using my own build opensmalltalk-vm solved the issue, since
> the FFI plugin that came with the release bundle did not seem to work.

Thanks for the info! and Thanks for sharing, even after this time :D.
Could you share which vm bundled the non-working FFI plugin?
Best regards
	-Tobias

[cc squeak-dev/vm-dev]