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Re: question on glibc interposition

From: "christopher dot aoki at oracle dot com" <christopher dot aoki at oracle dot com>
To: Alexander Monakov <amonakov at ispras dot ru>
Cc: Chris Aoki <christopher dot aoki at oracle dot com>, libc-alpha at sourceware dot org
Date: Tue, 13 Feb 2018 11:39:59 -0800
Subject: Re: question on glibc interposition
Authentication-results: sourceware.org; auth=none
References: <85D90A1D-4D34-404C-AE3D-D2864F0CAB01@oracle.com> <alpine.LNX.2.20.13.1802111120340.9728@monopod.intra.ispras.ru> <alpine.LNX.2.20.13.1802111201460.9728@monopod.intra.ispras.ru>

> On Feb 11, 2018, at 1:05 AM, Alexander Monakov <amonakov@ispras.ru> wrote:
> 
> On Sun, 11 Feb 2018, Alexander Monakov wrote:
>> and after that LD_DEBUG stream between the 'run' and 'fin' commands should
>> show you how the malloc call was bound.
> 
> Ugh, no, not that part. The relatively small part produced after 'fin' and
> the gdb prompt after that (that's why LD_BIND_NOT is needed - to see bindings
> after invoking _gfortran_string_trim even if some were already computed).
> 
> Alexander

Yes, that was helpful.  It turned out that  my interposition library was misusing
symbol versioning, which apparently interferes with interposition of the intended
routines (malloc/free/etc.)  Thanks!

-chris

Follow-Ups:
- Re: question on glibc interposition
  - From: Carlos O'Donell

References:
- question on glibc interposition
  - From: christopher dot aoki at oracle dot com
- Re: question on glibc interposition
  - From: Alexander Monakov
- Re: question on glibc interposition
  - From: Alexander Monakov

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