svn commit: branches/uClibc-nptl: ldso/include ldso/ldso libc/misc/pthread etc...

[Peter S. Mazinger]

On Sun, 15 Jan 2006, Joakim Tjernlund wrote:

>  > 
> > I have converted almost all weak_alias to strong_alias. 
> > My idea is to mark with weak_alias only those that really are 
> > needed to be overwritten by any other (stronger) from another 
> > lib. Could you please provide the list of functions that nptl 
> > needs weak within libc?
> > 
> > Jocke: will this be handled correctly by ldso, or it will 
> > load the first found version (e.g the one in libc, despite the weak) ?
> > 
> > Thanks, Peter
> 
> ldso will use the one it finds first, weak or strong does not matter.

which will be the first in case the app has DT_NEEDED for 
libc.so/libpthread.so, libc.so/ld.so (nptl uses maybe some combination w/ 
librt.so as well)

Peter
> 
> >From a relocation order view there is no difference between weaks and strong symbols.
> Weak symbols makes it possible/easier to have several identical syms without LD complaining
> about multiple syms.

Then I am more then ever to change all weak_alias to strong_alias, that 
way we exactly know that we intend to use that specific version and let 
the linker tell us that we have a conflict that has to be handled.

Peter

-- 
Peter S. Mazinger <ps dot m at gmx dot net>           ID: 0xA5F059F2
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