Re: [Gcl-devel] Re: function addresses and ld.so

[Camm Maguire]

Greetings, and thanks for your reply!  Where might I look for the
SunOS example, if it still exists?

Take care,

Ian Lance Taylor <address@hidden> writes:

> Richard Henderson <address@hidden> writes:
> 
> > On Wed, Aug 13, 2003 at 04:35:36PM -0700, David Mosberger wrote:
> > > Wouldn't, e.g., LD_PRELOADing something break this assumption?
> > 
> > Yes.  Or, indeed, just recompiling the library could result
> > in different PLT offsets within the DSO, even on x86.
> > 
> > This behaviour is completely broken.  It'll never work reliably.
> 
> The unexec function needs to know about the PLT, and it needs to do
> the right thing.
> 
> The emacs unexec function used to do this for SunOS shared libraries
> (which were the basis for ELF shared libraries).  It is at least
> theoretically possible to handle this correctly.
> 
> Ian
> 
> 
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> 
> 

-- 
Camm Maguire                                            address@hidden
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