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Date: Sun, 10 May 2009 06:40:00 -0000
From: paawan oza <paawan1982@yahoo.com>
Subject: Re: MMX and floating point insn suport for reversible debugging
To: Hui Zhu <teawater@gmail.com>
Cc: Thiago Jung Bauermann <bauerman@br.ibm.com>, gdb ml <gdb@sourceware.org>,   Pedro Alves <pedro@codesourcery.com>,   Marc Khouzam <marc.khouzam@ericsson.com>,   Michael Snyder <msnyder@vmware.com>, Eli Zaretskii <eliz@gnu.org>,   Mark Kettenis <mark.kettenis@xs4all.nl>
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I think,=20
record_arch_list_add_reg (ir.regcache, I386_ST0_REGNUM) will be sufficient=
=20
to fetch all floating point registers.
no need to update the structure.
Regards,
Oza.


--- On Sun, 5/10/09, paawan oza <paawan1982@yahoo.com> wrote:

> From: paawan oza <paawan1982@yahoo.com>
> Subject: Re: MMX and floating point insn suport for reversible debugging
> To: "Hui Zhu" <teawater@gmail.com>
> Cc: "Thiago Jung Bauermann" <bauerman@br.ibm.com>, "gdb ml" <gdb@sourcewa=
re.org>, "Pedro Alves" <pedro@codesourcery.com>, "Marc Khouzam" <marc.khouz=
am@ericsson.com>, "Michael Snyder" <msnyder@vmware.com>, "Eli Zaretskii" <e=
liz@gnu.org>, "Mark Kettenis" <mark.kettenis@xs4all.nl>
> Date: Sunday, May 10, 2009, 12:07 PM
>=20
> Hi Hui,
>=20
> I think we need to update and add floating point in
> following structure
> for st1 to st7.
>=20
> enum i386_regnum
> {
> =A0 I386_EAX_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %eax */
> =A0 I386_ECX_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %ecx */
> =A0 I386_EDX_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %edx */
> =A0 I386_EBX_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %ebx */
> =A0 I386_ESP_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %esp */
> =A0 I386_EBP_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %ebp */
> =A0 I386_ESI_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %esi */
> =A0 I386_EDI_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %edi */
> =A0 I386_EIP_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %eip */
> =A0 I386_EFLAGS_REGNUM,=A0=A0=A0
> =A0=A0=A0 /* %eflags */
> =A0 I386_CS_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %cs */
> =A0 I386_SS_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %ss */
> =A0 I386_DS_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %ds */
> =A0 I386_ES_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %es */
> =A0 I386_FS_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %fs */
> =A0 I386_GS_REGNUM,=A0=A0=A0 =A0=A0=A0
> /* %gs */
> =A0 I386_ST0_REGNUM=A0=A0=A0 =A0=A0=A0
> /* %st(0) */
> };
>=20
> what do you say ?
>=20
>=20
> Regards,
> Oza.
>=20
> --- On Thu, 5/7/09, Hui Zhu <teawater@gmail.com>
> wrote:
>=20
> > From: Hui Zhu <teawater@gmail.com>
> > Subject: Re: MMX and floating point insn suport for
> reversible debugging
> > To: "paawan oza" <paawan1982@yahoo.com>
> > Cc: "Thiago Jung Bauermann" <bauerman@br.ibm.com>,
> "gdb ml" <gdb@sourceware.org>,
> "Pedro Alves" <pedro@codesourcery.com>,
> "Marc Khouzam" <marc.khouzam@ericsson.com>,
> "Michael Snyder" <msnyder@vmware.com>,
> "Eli Zaretskii" <eliz@gnu.org>,
> "Mark Kettenis" <mark.kettenis@xs4all.nl>
> > Date: Thursday, May 7, 2009, 8:24 AM
> > On Thu, May 7, 2009 at 02:02, paawan
> > oza <paawan1982@yahoo.com>
> > wrote:
> > >
> > > Hi Hui,
> > >
> > > I have started understanding and working on
> point-1.
> > > I have some questions. please let me know my
> > understanding is correct ?
> > >
> > > 1) i386-tdep.c is the one which has been done
> for
> > record-replay. which basically takes care of
> disassembling
> > insns...
> > > but I see some code regarding MMX and x87FPU
> already
> > available.
> > > may I know exactly, what support is missing ?
> > >
> >=20
> > =A0 =A0 case 0x0f06:
> > =A0 =A0 =A0 break;
> >=20
> > =A0 =A0 =A0 /* MMX/SSE/SSE2/PNI support */
> > =A0 =A0 =A0 /* XXX */
> >=20
> > =A0 =A0 default:
> >=20
> > Your mean is this part?
> >=20
> >=20
> > And I suggest you can begin with float point insn
> > first.=A0 It doesn't
> > record float point reg change.
> >=20
> >=20
> > Thanks,
> > Hui
> >=20
>=20
>=20
>=20
>=20