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Re: [Libunwind-devel] Power Libunwind


From: Andreas Schwab
Subject: Re: [Libunwind-devel] Power Libunwind
Date: Thu, 02 Aug 2007 16:44:32 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux)

"David Mosberger-Tang" <address@hidden> writes:

> Why is that a problem?  On ia64, we also return the address of the function
> descriptor.  That *is* the value of a function pointer, after all.  I guess
> I'm still not following.

The difference is: on ia64 the value of a function symbol is the address
function itself (in the .text section), on ppc64 it points to the
function descriptor (in the .opd section).  That provides all sorts of
nastly surprises.

Andreas.

-- 
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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