From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Pedro Alves <palves@redhat.com>
Cc: "Maciej W. Rozycki" <macro@codesourcery.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 12:39:00 -0000 [thread overview]
Message-ID: <20120608123847.GA13337@host2.jankratochvil.net> (raw)
In-Reply-To: <4FD1EB8C.1050407@redhat.com>
On Fri, 08 Jun 2012 14:09:48 +0200, Pedro Alves wrote:
> If you strip your binary, GDB won't find "_dl_debug_state",
> but then it won't find "_start" nor "main" either! 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.
strip "_dl_debug_state" was just a simulation of ld.so with
incompatible/unimplemented state point. Nobody is going to strip just any
specific symbols in real world.
I still do not see why 'main' was not left there as it would not hurt and it
could help. OTOH some real world case (some incompatible ld.so state point
name + build) should be given first before finding a solution for it.
Regards,
Jan
next prev parent reply other threads:[~2012-06-08 12:39 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 [this message]
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
2012-06-01 18:07 ` Jan Kratochvil
2012-06-05 15:45 ` Pedro Alves
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