From: Michael Snyder <msnyder@vmware.com>
To: Pedro Alves <pedro@codesourcery.com>
Cc: "gdb@sourceware.org" <gdb@sourceware.org>
Subject: Re: Random gdbserver question (x86)
Date: Wed, 31 Mar 2010 17:46:00 -0000 [thread overview]
Message-ID: <4BB38A7D.9070108@vmware.com> (raw)
In-Reply-To: <201003311843.47068.pedro@codesourcery.com>
Pedro Alves wrote:
> On Wednesday 31 March 2010 18:35:29, Michael Snyder wrote:
>> And is that more-or-less true of gdb as well? I.e., if host/target
>> is x86_64-linux, then gdb can debug both 32 and 64 bit apps, but if
>> host/target is i386-linux, then gdb can only debug 32 bit apps?
>
> Native gdb yes. A 32-bit GDB should still be able to debug a
> remote/gdbserver 64-bit inferior.
>
>> Actually, I phrase it as a question even though I am pretty sure it
>> is true. My real question is "Why?". It seems to me that if we just
>> included amd64-linux-nat.o and amd64-*-tdep.o in the build, then
>> 32-bit gdb should be able to debug 64-bit native apps.
>
> Wouldn't work. The limitation is on ptrace.
Can it be explained relatively simply? ;-)
next prev parent reply other threads:[~2010-03-31 17:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-30 23:40 Michael Snyder
2010-03-31 1:19 ` Pedro Alves
2010-03-31 17:27 ` Michael Snyder
2010-03-31 17:35 ` Michael Snyder
2010-03-31 17:43 ` Pedro Alves
2010-03-31 17:46 ` Michael Snyder [this message]
2010-03-31 17:48 ` Daniel Jacobowitz
2010-03-31 17:56 ` Michael Snyder
2010-03-31 17:57 ` Mark Kettenis
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