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From: "Maciej W. Rozycki" <macro@codesourcery.com>
To: Pedro Alves <palves@redhat.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>,
	Joakim Tjernlund	<Joakim.Tjernlund@transmode.se>,
	<gdb-patches@sourceware.org>
Subject: Re: [PATCH] solib-svr4: Avoid unwanted shlib internal BPs When debugging Linux kernel or u-boot
Date: Fri, 08 Jun 2012 15:45:00 -0000	[thread overview]
Message-ID: <alpine.DEB.1.10.1206081640000.23962@tp.orcam.me.uk> (raw)
In-Reply-To: <4FD1EB8C.1050407@redhat.com>

On Fri, 8 Jun 2012, Pedro Alves wrote:

> [...] So it is a contrived
> example to strip "_dl_debug_state" and "_start" but not "main", because
> that's not something that is natural to do.

 Indeed, I missed that you referred to that peculiarity rather than 
dlopening from a static binary in general.

> "_dl_debug_state" ends up available on static links too, I don't see what
> is there to do.

 It can be stripped from a static binary, while it always stays as a 
dynamic symbol in ld.so, even if you strip the dynamic linker.  However in 
practice that probably does not matter indeed.

  Maciej


  parent reply	other threads:[~2012-06-08 15:45 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-01 15:01 [PATCH] solib-svr4: Avoid unwanted shlib internal BPs When debugging Linux kernel or u-boot with Abatron BDI emulator an error occurs: .. (gdb) tar remote bdi:2001 Remote debugging using bdi:2001 0xeff80050 in ?? () (gdb) mon reset (gdb) cont Continuing. Warning: Cannot insert breakpoint -1. Error accessing memory address 0xc0000000: Unknown error 4294967295 Joakim Tjernlund
2012-06-01 16:21 ` [PATCH] solib-svr4: Avoid unwanted shlib internal BPs When debugging Linux kernel or u-boot Pedro Alves
2012-06-01 18:05   ` Jan Kratochvil
2012-06-01 17:37     ` Pedro Alves
2012-06-01 18:05       ` Jan Kratochvil
2012-06-01 18:19         ` Pedro Alves
2012-06-01 19:08           ` Jan Kratochvil
2012-06-01 20:25         ` Mark Kettenis
2012-06-07  0:00       ` Maciej W. Rozycki
2012-06-08 12:10         ` Pedro Alves
2012-06-08 12:39           ` Jan Kratochvil
2012-06-08 13:07             ` Pedro Alves
2012-06-08 13:37               ` Mark Kettenis
2012-06-08 13:45                 ` Pedro Alves
2012-06-08 15:45           ` Maciej W. Rozycki [this message]
2012-06-01 18:07     ` Jan Kratochvil
2012-06-05 15:45   ` Pedro Alves

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