[Mono-list] io-layer naming issues on OSX.

Robert Jordan robertj at gmx.net
Sat Oct 14 13:33:33 EDT 2006


Robert Jordan wrote:
> Andreas Färber wrote:
>> Am 14.10.2006 um 18:29 schrieb Robert Jordan:
>>
>>> Robert Jordan wrote:
>>>> Andreas Färber wrote:
>>>>> What does "we don't use a linker script on macosx"
>>>>> mean in cleartext?
>>>> Linker script == script for the linker. Mono provides
>>>> a GNU ld script:
>>>>
>>>> http://svn.myrealbox.com/viewcvs/trunk/mono/mono/mini/ldscript? 
>>>> view=markup
>>>>
>>>> but no Mac OS X script, because Apple's ld doesn't support
>>>> scripts. It only support full lists of symbols (like MS LINK)
>>>> with the option '-exported_symbols_list <filename>'
>>>> or suppressing lists with '-unexported_symbols_list <filename>'.
>>>> The latter would be suitable to suppress the problematic
>>>> WAPI symbols. Am looking at this.
>>> Oops, WAPI is a global public API, so undefining its symbols
>>> is not an option.
>> Well, to my understanding the GNU ld linker script above does mark  
>> them local, not global!
> 
> Sorry, yeah, because Mono's linker script is actually specifying
> the version of the symbols:
> 
> http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/gnu-linker/version.html
> 
> It doesn't deal with the visibility of the symbols. This is
> achieved with the GCC visibility attribute.
> 
> Still, WAPI is public and Mac OS X ld '-unexported_symbols_list'
> can't be used.
> 
> I'll send you a patch that renames the symbols later tonight.

1. copy symbols.h into mono/io-layer/
2. apply the wapi-symbols.diff patch


Robert
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