Re: CoreBase toll-free bridging

[Maxthon Chan]

I do have the binary, but I have legal worries about this, unless it is a kind 
of fair use and you can prove it.

The binary is an ARMv7 + ARMv7s Universal Mach-O binary. It is shipped with my 
Xcode 4.6 iOS 6.1 SDK. And you can check out the iOS 5.0.1 firmware image for 
iPhone 4S which Apple left without practical encryption in place. However in 
the iOS firmware all binaries are crammed into an dyld (Mach-O dynamic linker 
for OS X and iOS) binary cache file so it is a bit difficult to tackle that 
file.

在 2013-3-15，下午4:13，Luboš Doležel <address@hidden> 写道：

> On Fri, 15 Mar 2013 15:15:56 +0800, Maxthon Chan wrote:
>> I think I scored one on suggesting implementing CF in ObjC here. :)
> 
> Well, I have my doubts about this claim. Especially because of
> 
>>> "If you look at the Darwin sources, you'll see that the iPhone's 
>>> CoreFoundation classes are actually implemented in ObjC."
> 
> No iOS CF sources have been made public, so you can't just "look at Darwin 
> sources".
> 
> And it doesn't really make much sense to me. Why?
> 
> 1) Why bother developing, testing and maintaining a separate CF 
> implementation when you can use the one you already have?
> 2) There is nothing stopping them using ObjC-based CF even on OS X. Carbon 
> apps don't need to know/care if there is any ObjC behind the scenes. Just 
> because your app is plain C doesn't meen that the libraries cannot internally 
> use ObjC.
> 
>> There are very few iOS code available out there, so it is very
>> difficult to hack into that.
>> 
>> By the way, I do have an paid Apple iOS Developer account so maybe I
>> can verify something for you? Maybe check iPhone's CF framework's
>> symbol import?
>> 
> 
> If you can get me an ARM CoreFoundation binary, I can look into its code to 
> see what it's doing. I wouldn't fully trust the imports alone.
> 
> -- 
> Luboš Doležel
> 
> 
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