Am 07.02.2015 um 11:54 schrieb Sven Barth: > On 07.02.2015 11:45, Steve Hildebrandt wrote: >>> You don't need to implement Invoke for all platforms for now. Just >>> raise an exception and hopefully platform maintainers will take it >>> from there. The most important part is that the parameter description >>> is flexible enough to potentially allow for all platforms to be >>> supported. >>> >>> Regards, >>> Sven >> And here is the problem, depending on the calling convention it may not >> fit into the delphi compatible RTTI layout. >> If more information is needed than a stack offset or a single register >> index, you will need to acomodate that somehow. > > How does the information record look currently? Our RTTIs aren't 100% > compatible anyway, so I > wouldn't mind if we add needed fields for other platforms. Of course we'd > first need to know whether > any other platform has such needs... > At least for m68k I can say that register index and stack offset should be > enough.
x86-64 (PowerPC too) is pretty compilcated in this regard: single parameters can span across multiple registers. IIRC some ABIs even require mixed integer/fpu/stack locations for one parameter. _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
