RE: How to access an applications ELF program header and ELF section header at runtime

["Bharath Ramesh" <bramesh at vt dot edu>]

> -----Original Message-----
> From: patofiero@gmail.com [mailto:patofiero@gmail.com] On Behalf Of
> Carlos O'Donell
> Sent: Wednesday, August 19, 2009 11:50 AM
> To: Bharath Ramesh
> Cc: Eduardo; libc-help@sourceware.org
> Subject: Re: How to access an applications ELF program header and ELF
> section header at runtime
> 
> On Wed, Aug 19, 2009 at 9:38 AM, Bharath Ramesh<bramesh@vt.edu> wrote:
> > Given this premise that these symbols are part of the linker script
> and the
> > fact that the existence of .data and .bss section is not guaranteed,
> is
> > there a consistent way of locating the region/section where all the
> global
> > data of an application is stored in the applications address space
> and the
> > length of this region/section.
> 
> There is no consistent way of locating the region/section where all
> the global data of an application is stored.
> 
> You can dlopen yourself and lookup a single symbol.
> 
> What problem are you actually trying to solve?

In my research project I am trying to provide shared memory semantics over
distributed memory. This requires that the global data of the application be
consistent across all physical nodes of the cluster. I can make this
consistent but I need to know where the application's global data is stored
and the size of this region/section so that I can keep it consistent during
the execution of the application on the cluster.

Regards,

Bharath

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