On Thu, Mar 31, 2016 at 12:44 AM, Esteban Lorenzano <estebanlm@gmail.com> wrote:
how does your function call looks like?



The function call is:

^ self ffiCall: #( GsGciOopType GciExecuteStrFromContextDbg_(String source, int64 sourceSize, GsGciOopType sourceClassOopType, GsGciOopType contextObjectOopType, GsGciOopType symbolListOopType, int flags, ushort environmentId) )


And the C function SHOULD BE (I say SHOULD because I don't have access to the C source nor header):

�� EXTERN_GCI_DEC(OopType)
GciExecuteStrFromContextDbg_(
�� const char source[], int64 sourceSize, OopType sourceClass,
�� OopType contextObject, OopType symbolList,
�� int flags, ��ushort environmentId );


I am not sure which is the error because other times I did get an error that is was clear that it couldn't marshal the arguments. But that "bad arguments" doesn't tell me much :(




On 31 Mar 2016, at 04:55, Mariano Martinez Peck <marianopeck@gmail.com> wrote:

Hi guys,

Could someone help me understand what could be the exact reason of a��'Bad argument for external function' in an FFI call? Of course, I double checked all the arguments definitions in the #ffiCall: and the real objects I receive as arguments at the moment of the callout. And they all seem correct.��

And even better...how can I get more info about it?

Thanks in advance,

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Mariano
http://marianopeck.wordpress.com