[Pharo-dev] Reproducible VM Crash using UFFI

Hernán Morales Durand hernan.morales at gmail.com
Thu Oct 5 09:42:27 EDT 2017


I tried, now I get an exception "Use ExternalAddress instead!"

I guess the message means Use ExternalAddres in the "out" parameter.
But replacing byte with ExternalAddress also crashes the VM (crash.dmp
attached).



2017-10-05 10:03 GMT-03:00 Esteban Lorenzano <estebanlm at gmail.com>:
>
>> On 5 Oct 2017, at 14:55, Hernán Morales Durand <hernan.morales at gmail.com> wrote:
>>
>> Forgot to comment that Nacl worked in Pharo 5.
>
> yes but that was with NB and there are some minimum differences.
> I do not have the library and I lack the time to try more, but seems to me that here:
>
> apiCryptoHashSha512Output: outByteArray input: inByteArray inputLength: inByteArrayLength
>
>         ^ self
>                 ffiCall: #(long crypto_hash_sha512_ref (byte * outByteArray, byte * inByteArray, ulonglong * inByteArrayLength))
>                 module: 'libsodium’.
>
>
> instead "byte * outByteArray”, you want "byte **outByteArray”
>
> can you try?
>
> Esteban
>
>
>
>>
>> Cheers,
>>
>> Hernán
>>
>> 2017-10-05 3:23 GMT-03:00 Esteban Lorenzano <estebanlm at gmail.com>:
>>> H Hernani,
>>>
>>> Most probably is a problem in the library and not UFFI, but I could not know without a crash report.
>>>
>>> Esteban
>>>
>>>> On 5 Oct 2017, at 06:00, Hernán Morales Durand <hernan.morales at gmail.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> I ported Nacl (a libsodium wrapper) from the old FFI apicall: format
>>>> to use the UFFI ffiCall:, but there should be something terribly wrong
>>>> because is crashing the VM, in both Windows 8.1 and Linux.
>>>>
>>>> How to reproduce in Pharo 6.1
>>>>
>>>> Metacello new
>>>>   smalltalkhubUser: 'tonyg' project: 'Crypto-Nacl';
>>>>   configuration: 'Nacl';
>>>>   version: #development;
>>>>   load.
>>>>
>>>> (Nacl hashString: 'The quick brown fox jumps over the lazy dog') hex
>>>>
>>>> This one does deserve a bug entry?
>>>>
>>>> Cheers,
>>>>
>>>> Hernán
>>>>
>>>
>>>
>>
>
>
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