[RFA] patch for [Bug gdb/11253]

[Hui Zhu]

Could some people help us review this patch?

Thanks,
Hui

On Mon, Mar 1, 2010 at 02:38, Jan Kratochvil <jan.kratochvil@redhat.com> wrote:
> On Fri, 26 Feb 2010 04:25:58 +0100, Hui Zhu wrote:
>> This patch is for bug 11253 http://sourceware.org/bugzilla/show_bug.cgi?id=11253
>
> just extended it a bit but it remains the same.
>
> No regressions on {x86_64,x86_64-m32,i686}-fedora12-linux-gnu.
>
> since
>        Re: [RFA] Fix hw watchpoints in process record.
>        From: Pedro Alves <pedro at codesourcery dot com>
>        http://sourceware.org/ml/gdb-patches/2009-11/msg00476.html
>        http://sourceware.org/ml/gdb-cvs/2009-11/msg00187.html
>        commit 1ab0b876af2e2410fa462e901623669f29d75c89
>
> there are IMO missing the resets in record_open.
>
>
> Thanks,
> Jan
>
>
> 2010-02-28  Jan Kratochvil  <jan.kratochvil@redhat.com>
>            Hui Zhu  <teawater@gmail.com>
>
>        * record.c (record_open_1): Check tmp_to_stopped_by_watchpoint and
>        tmp_to_stopped_data_address.
>        (record_open): Reset tmp_to_stopped_by_watchpoint and
>        tmp_to_stopped_data_address.
>        * target.c (init_dummy_target): Add to_stopped_by_watchpoint and
>        to_stopped_data_address.
>
> --- a/gdb/record.c
> +++ b/gdb/record.c
> @@ -867,6 +867,10 @@ record_open_1 (char *name, int from_tty)
>     error (_("Could not find 'to_insert_breakpoint' method on the target stack."));
>   if (!tmp_to_remove_breakpoint)
>     error (_("Could not find 'to_remove_breakpoint' method on the target stack."));
> +  if (!tmp_to_stopped_by_watchpoint)
> +    error (_("Could not find 'to_stopped_by_watchpoint' method on the target stack."));
> +  if (!tmp_to_stopped_data_address)
> +    error (_("Could not find 'to_stopped_data_address' method on the target stack."));
>
>   push_target (&record_ops);
>  }
> @@ -897,6 +901,8 @@ record_open (char *name, int from_tty)
>   tmp_to_xfer_partial = NULL;
>   tmp_to_insert_breakpoint = NULL;
>   tmp_to_remove_breakpoint = NULL;
> +  tmp_to_stopped_by_watchpoint = NULL;
> +  tmp_to_stopped_data_address = NULL;
>
>   /* Set the beneath function pointers.  */
>   for (t = current_target.beneath; t != NULL; t = t->beneath)
> --- a/gdb/target.c
> +++ b/gdb/target.c
> @@ -2838,6 +2838,9 @@ init_dummy_target (void)
>   dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero;
>   dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero;
>   dummy_target.to_has_execution = (int (*) (struct target_ops *)) return_zero;
> +  dummy_target.to_stopped_by_watchpoint = return_zero;
> +  dummy_target.to_stopped_data_address =
> +    (int (*) (struct target_ops *, CORE_ADDR *)) return_zero;
>   dummy_target.to_magic = OPS_MAGIC;
>  }
>
>