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From: Hui Zhu <teawater@gmail.com>
Date: Mon, 12 Oct 2009 07:54:00 -0000
Message-ID: <daef60380910120054w5fefd3cbh99af467e30f4065a@mail.gmail.com>
Subject: Re: [PATCH] Save CS segment register for ljmp instruction
To: Jiang Jilin <freephp@gmail.com>
Cc: Michael Snyder <msnyder@vmware.com>, gdb-patches ml <gdb-patches@sourceware.org>
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Could you post some code to test the ljmp and cs?  I am not sure about cs p=
art.

Thanks,
Hui

On Mon, Oct 12, 2009 at 10:24, Jiang Jilin <freephp@gmail.com> wrote:
> Hi Hui,
>
> I think CS register should be stored for ljmp instruction, but I'm
> not pretty sure, please help me confirm it.
>
> Thanks!
>
> 2009-10-12 =A0Jiang Jilin =A0<freephp@gmail.com>
>
> =A0 =A0 =A0 =A0* i386-tdep.c (i386_process_record): Save CS segment regis=
ter
> =A0 =A0 =A0 =A0for ljmp instruction
> ---
> =A0gdb/i386-tdep.c | =A0 =A03 +++
> =A01 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
> index b4dc646..0145008 100644
> --- a/gdb/i386-tdep.c
> +++ b/gdb/i386-tdep.c
> @@ -3606,8 +3606,11 @@ reswitch:
> =A0 =A0 =A0 =A0 =A0break;
> =A0 =A0 =A0 =A0 =A0/* jmp */
> =A0 =A0 =A0 =A0case 4:
> + =A0 =A0 =A0 =A0 I386_RECORD_ARCH_LIST_ADD_REG (X86_RECORD_EFLAGS_REGNUM=
);
> + =A0 =A0 =A0 =A0 break;
> =A0 =A0 =A0 =A0 =A0/* ljmp */
> =A0 =A0 =A0 =A0case 5:
> + =A0 =A0 =A0 =A0 I386_RECORD_ARCH_LIST_ADD_REG (X86_RECORD_CS_REGNUM);
> =A0 =A0 =A0 =A0 =A0I386_RECORD_ARCH_LIST_ADD_REG (X86_RECORD_EFLAGS_REGNU=
M);
> =A0 =A0 =A0 =A0 =A0break;
> =A0 =A0 =A0 =A0 =A0/* push */
> --
> 1.5.4.3
>
>