Re: A question about gdb script

Hui Zhu
2009-11-26T08:30:50Z

On Thu, Nov 26, 2009 at 00:06, Pedro Alves <pedro@codesourcery.com> wrote:
> On Wednesday 25 November 2009 15:11:51, Daniel Jacobowitz wrote:
>> > 2.  Sometime, I want just record a function, I want:
>> > b functon_name
>> > commands
>> > silent
>> > record
>> > finish
>> > #Maybe we can record save in this line, this is first question.
>> > record stop
>> > end
>> > But when I really do it.  I found that gdb stop running after finish.
>> >
>> > Could you help me with them?
>>
>> This is a known limitation of breakpoint commands.  It's very
>> difficult.
>
> Try using the hook-stop instead.  Something like this:
>
>  set $stop_recording_on_next_stop=0
>
>  b functon_name
>  commands
>  silent
>  record
>  set $stop_recording_on_next_stop=1
>  finish
>  end
>
>  define hook-stop
>   if $stop_recording_on_next_stop
>     set $stop_recording_on_next_stop=0
>     record save
>     record stop
>     end
>   end
>

Cool. I change hook-stop to:
define hook-stop
if $stop_recording_on_next_stop
set $stop_recording_on_next_stop=0
record save
record stop
c
end
end

It looks not bad, but got a lot of:
---Type <return> to continue, or q <return> to quit---q

If you don't mind, I will post a patch to change each fprintf_filtered
in record.c to fprintf_unfiltered.

Thanks,
Hui