[fpc-devel] 64-bit Migration (fpc/laz)

[London Disney]

That's great help Jonas; thanks.

As with my question (c), yes I mean what in the compiler did you
need to modify or focus on the most ?

It's a bit broad may be but I think you only need to really
worry about the code-generation for, say, G5 64-bit ABI
and instruction set ? The rest of the code shouldn't need much change.


On Sun, Jan 10, 2010 at 2:00 PM, Jonas Maebe <jonas.maebe at elis.ugent.be>wrote:

>
> On 10 Jan 2010, at 14:45, London Disney wrote:
>
> > a) How do we use fpc/laz to make Mach-O fat binaries?
>
> Compile the different versions separately and then combine them using the
> "lipo" tool.
>
> > b) Which versions was the first to support Intel Macs and which
>
> 2.2.0
>
> >     version was the first to support G5 64-bit PPC ?
>
> 2.4.0 (on Mac OS X at least, it was supported earlier on Linux). Of course,
> 32 bit PPC code runs just fine on G5's.
>
> > c) How did the community made a tranition to G5 as well as
> >    the Intel Macs in terms of related modifications in the
> >    original FPC compilers (which sections in general, was it
> >    the fpc itself or did you use other compilers, etc )?
>
> I don't understand what you are asking here. Are you asking how the
> compiler was modified ("related modifications in the original FPC
> compilers"), whether people writing programs with FPC switched to other
> compilers ("or did you use other compilers"), or something else?
>
> In any case, I think that very few people ever compiled PPC64 apps on Mac
> OS X (even with GCC), since there are very few advantages in doing so (the
> only real ones are if you have a lot of 64 bit arithmetic, or need a lot of
> memory). And only as of Mac OS X 10.5 it was possible to create 64 bit gui
> apps.
>
> > d) I am still not used to Cocoa and Objective-C (Intel Leopard 10.5)
> >    however it makes sense for me to ask how does fpc/laz link to
> >    the Cocoa libraries/frameworks? So for instance under
> >    WinTel there's the C/C++ DLLs and the compiler can
> >    use the right calling conventions (WIN_API) to coimmunicate
> >    with them (as an interface) -- so what's the mechanism
> >    for MacOSX ?  LCL does use Cocoa doesn't it ? and if
> >   I'm not wrong Cocoa is mostly or totally in ObjC...
>
> With FPC 2.4.x and earlier: http://wiki.freepascal.org/PasCocoa
> With FPC 2.5.x and later: http://wiki.freepascal.org/FPC_PasCocoa
>
>
> Jonas_______________________________________________
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>
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