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Re: MMX and floating point insn suport for reversible debugging
- From: paawan oza <paawan1982 at yahoo dot com>
- To: Hui Zhu <teawater at gmail dot com>
- Cc: Thiago Jung Bauermann <bauerman at br dot ibm dot com>, gdb ml <gdb at sourceware dot org>, Pedro Alves <pedro at codesourcery dot com>, Marc Khouzam <marc dot khouzam at ericsson dot com>, Michael Snyder <msnyder at vmware dot com>, Eli Zaretskii <eliz at gnu dot org>, Mark Kettenis <mark dot kettenis at xs4all dot nl>
- Date: Sat, 9 May 2009 23:39:58 -0700 (PDT)
- Subject: Re: MMX and floating point insn suport for reversible debugging
I think,
record_arch_list_add_reg (ir.regcache, I386_ST0_REGNUM) will be sufficient
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@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: Sunday, May 10, 2009, 12:07 PM
>
> Hi Hui,
>
> I think we need to update and add floating point in
> following structure
> for st1 to st7.
>
> enum i386_regnum
> {
> ? I386_EAX_REGNUM,???
> ??? /* %eax */
> ? I386_ECX_REGNUM,???
> ??? /* %ecx */
> ? I386_EDX_REGNUM,???
> ??? /* %edx */
> ? I386_EBX_REGNUM,???
> ??? /* %ebx */
> ? I386_ESP_REGNUM,???
> ??? /* %esp */
> ? I386_EBP_REGNUM,???
> ??? /* %ebp */
> ? I386_ESI_REGNUM,???
> ??? /* %esi */
> ? I386_EDI_REGNUM,???
> ??? /* %edi */
> ? I386_EIP_REGNUM,???
> ??? /* %eip */
> ? I386_EFLAGS_REGNUM,???
> ??? /* %eflags */
> ? I386_CS_REGNUM,??? ???
> /* %cs */
> ? I386_SS_REGNUM,??? ???
> /* %ss */
> ? I386_DS_REGNUM,??? ???
> /* %ds */
> ? I386_ES_REGNUM,??? ???
> /* %es */
> ? I386_FS_REGNUM,??? ???
> /* %fs */
> ? I386_GS_REGNUM,??? ???
> /* %gs */
> ? I386_ST0_REGNUM??? ???
> /* %st(0) */
> };
>
> what do you say ?
>
>
> Regards,
> Oza.
>
> --- On Thu, 5/7/09, Hui Zhu <teawater@gmail.com>
> wrote:
>
> > 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 ?
> > >
> >
> > ? ? case 0x0f06:
> > ? ? ? break;
> >
> > ? ? ? /* MMX/SSE/SSE2/PNI support */
> > ? ? ? /* XXX */
> >
> > ? ? default:
> >
> > Your mean is this part?
> >
> >
> > And I suggest you can begin with float point insn
> > first.? It doesn't
> > record float point reg change.
> >
> >
> > Thanks,
> > Hui
> >
>
>
>
>