[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [osol-discuss] Re: GNU ld -shared fails to link filtered symbols on

From: Martin Man
Subject: Re: [osol-discuss] Re: GNU ld -shared fails to link filtered symbols on Solaris
Date: Tue, 28 Nov 2006 09:18:14 +0100
User-agent: Thunderbird (X11/20061115)

Rod Evans wrote:
Alan Modra wrote:

You seem to want some other sort of treatment of ABS symbols, as
needing .plt or .got entries, I presume.  I think that might be OK
too, but may require some redesign of GNU ld.  The trouble is that
GNU ld has just one ABS section internally.  That means that ABS
symbols are lumped together and lose their association with a
particular object file.  I'm reasonably certain that this will cause
you some trouble.

Well, I'm not very familiar with the gnu linker, but Martins experiments
seem to suggest that the treatment of an ABS definition is inconsistent -
sometimes they result in UNDEF references, other times ABS.

This is the point, under certain circumstances (-Wl,-shared) the absolute symbols are linked in as, well, absolute symbols, whereas without -Wl,-shared they are treated *properly* as undefs, despite the fact that they are indeed defined in the -lpthread or -ldl as absolute symbols.

Looks like inconsistency to me.

Martin might have to add some c stub functions to his builds so that
his libraries provide non-ABS filter symbols in the mean time.

This wouldn't help at all, since GNU linker would produce code which calls these stubs in the end, instead of redirecting to the filtee (I believe).


P.S. so what should we do next?


reply via email to

[Prev in Thread] Current Thread [Next in Thread]