[BUG] error in global variables strong aliasing

[Nitin Gupta]

Hello Mike,

Is there any update on this issue? Are you planning to revert the changes?

Regards,
Nitin G

Mike Frysinger wrote:
> On Tuesday 18 April 2006 11:21, Peter S. Mazinger wrote:
>   
>> On Wed, 12 Apr 2006, Mike Frysinger wrote:
>>     
>>> On Monday 20 March 2006 05:41, Peter S. Mazinger wrote:
>>>       
>>>> On Sat, 18 Mar 2006, Amir Shalem wrote:
>>>>         
>>>>> after commit
>>>>> http://www.uclibc.org/lists/uclibc-cvs/2006-March/009686.html
>>>>>
>>>>> global variables such as environ, errno, and friends are broken
>>>>> <snip>
>>>>> same happens with __environ & environ.
>>>>>           
>>>> this one is curious, I had a bug report before yours when I made use of
>>>> hidden global data (what this svn commit undid due to stability
>>>> problems)
>>>>         
>>> could you point me to the thread(s) you refer to here ?  cant say i
>>> noticed
>>>       
>> it was on irc, pointed out by khem (iirc arch was arm or armeb), it seems
>> to affect cross-compiled environments, native builds do not suffer of
>> this (tested on x86/ppc, my arm chroot is not enough updated yet to test
>> this and mipsel is broken as you know)
>>     
>
> the test case posted failed natively on some arches but passed on others ... i 
> posted a thread on the glibc list and HJ noted the reason for the failure 
> (and it isnt a cross vs native issue)
>
> so i'll revert your revert and use weak_alias for data rather than 
> strong_alias
>
>   
>>> any problems until after this change ... and really, the alias has always
>>> been weak here, not strong, so you werent revereting anything when you
>>> changed weak_alias(environ) to strong_alias(environ) ...
>>>
>>> if we look at glibc, they never use strong_alias() for data, just
>>> functions
>>>       
>> I can't find any logic when glibc uses strong_alias versus weak_alias,
>> it seems to me, that anything new added is weak_alias
>>     
>
> i was going by a grep of the source code itself ... all aliases used for data 
> are weak_alias()
> -mike
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