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Date: Tue, 23 Jun 2009 17:00:00 -0000
Message-ID: <8ac60eac0906230959k7d89636av6edd36d8d25b7457@mail.gmail.com>
Subject: Re: Troubleshooting broken gdbserver/remote-target
From: Paul Pluzhnikov <ppluzhnikov@google.com>
To: Grant Edwards <grant.b.edwards@gmail.com>
Cc: gdb@sources.redhat.com
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On Mon, Jun 22, 2009 at 10:09 PM, Grant Edwards
<grant.b.edwards@gmail.com> wrote:

> What would cause gdb to miss out on the fact that /lib/libuClibc-0.9.30.1.so
> is mapped?
>
> Where does gdb get mapping info?

I believe the code GDB should be using on Linux is in solib-svr4.c

Gdb looks for _r_debug symbol and DT_DEBUG Elf32_Dyn entry to find the
'struct r_debug', which contains a linked list of loaded shared libraries,
and traverses that list.

My guess: either GDB is not finding _r_debug, or (more likely) is not
traversing the list correctly.

Cheers,
--
Paul Pluzhnikov