[phobos] Showstopper bug: Hello world fails on OSX!

[Walter Bright]

Michel Fortin wrote:
> Le 2010-11-08 à 17:12, Walter Bright a écrit :
>
>   
>> See my reply: http://d.puremagic.com/issues/show_bug.cgi?id=4854
>>     
>
> As a side note, I discovered this week that the Objective-C runtime also depends on knowing the size of a section to initialize itself properly. This is for a section that contains all the protocol definitions aggregated together; upon loading an image the list is traversed to 'fixup' the protocols...
>
> The interesting point is that it does so without this begin,content,end section trickery, so it doesn't matter if sections get reordered during linking, which would be much more robust.
>
> >From what I found out by digging in the source code, this involves calling 'getsectdatafromheader' (or 'getsectdatafromheader_64') which returns the size as part of its last argument (see header "mach-o/getsect.h"). I'm not exactly sure how this all works, but there's definitely a way to make it work because it does work for the Objective-C runtime. Perhaps I should investigate a little more and send what I find on the list for druntime.
>
> libobjc:
>
> Source Browser:
> <http://www.opensource.apple.com/source/objc4/objc4-437.1/>
>
> Source Download link:
> <http://www.opensource.apple.com/tarballs/objc4/objc4-437.1.tar.gz>
>
>   

If such works, then I'm all for using it to replace the current method.