From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Pedro Alves <palves@redhat.com>
Cc: Paul Pluzhnikov <ppluzhnikov@google.com>,
Mark Kettenis <mark.kettenis@xs4all.nl>,
gdb-patches ml <gdb-patches@sourceware.org>
Subject: Re: [patch] Fix BZ15121 -- x/a broken for addresses in shared libraries
Date: Thu, 10 Sep 2015 15:19:00 -0000 [thread overview]
Message-ID: <alpine.LFD.2.20.1509101617580.10647@eddie.linux-mips.org> (raw)
In-Reply-To: <55F19CC3.8080001@redhat.com>
On Thu, 10 Sep 2015, Pedro Alves wrote:
> > I can't imagine any reason why (upper levels of) 64-bit GDB would need
> > to be lied to that the 32-bit inferior's 0x80000004 pointer has
> > CORE_ADDR value of 0xFFFFFFFF80000004.
>
> MIPS has signed addresses, at the hardware level. Thus a 32-bit ABI on
> a 64-bit machine ends up seeing with sign-extended addresses.
SH seems to be the same.
Maciej
next prev parent reply other threads:[~2015-09-10 15:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-06 20:03 Paul Pluzhnikov
[not found] ` <55F19100.30600@redhat.com>
2015-09-10 14:33 ` Mark Kettenis
2015-09-10 15:00 ` Paul Pluzhnikov
2015-09-10 15:07 ` Pedro Alves
2015-09-10 15:19 ` Maciej W. Rozycki [this message]
2015-09-10 15:02 ` Maciej W. Rozycki
2015-09-12 21:41 ` Paul Pluzhnikov
2015-09-12 21:56 ` Maciej W. Rozycki
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