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Re: [Libunwind-devel] Function Address


From: David Mosberger-Tang
Subject: Re: [Libunwind-devel] Function Address
Date: Wed, 15 Aug 2007 19:13:33 -0600

On 8/15/07, Jose Flavio Aguilar Paulino <address@hidden> wrote:

> Thanks a lot for the explanation about the "min_dist", I figure out that
> the problem is in gcc optimization -O2 (Im already reporting to gcc
> developers) because it lose the min_dist value and because of that it's
> not entering in the if to fill the procedure name.

Ah, I suspected an optimization problem!

> Do you know how could I read the memory address space in elf file? I'm
> still trying to avoid to use the address space, but I couldn't make it
> work yet!

The ELF file gets mmap'ed into libunwind's address-space, so you can
access it directly.  The info where the image is mapped is stored in
the elf_image struct (ei->image is the starting address and ei->size
its size).

  --david
-- 
Mosberger Consulting LLC, http://www.mosberger-consulting.com/




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