[RFA 03/10] Allow elision of some filtered frames

[Pedro Alves]

On 04/25/2017 08:41 PM, Tom Tromey wrote:
> When a frame filter elides some frames, they are still printed by
> "bt", indented a few spaces.  PR backtrace/15582 notes that it would
> be nice for users if elided frames could simply be dropped.  This
> patch adds this capability.
> 

So "bt elide" means "elide the elided frames", not "show me the
elided frames too".  It's fine with me, though I mildly wonder whether
users will be confused by the "double negative".

> diff --git a/gdb/extension.h b/gdb/extension.h
> index 2c79411..7c35502 100644
> --- a/gdb/extension.h
> +++ b/gdb/extension.h
> @@ -100,6 +100,9 @@ enum frame_filter_flags
>  
>      /* Set this flag if frame locals are to be printed.  */
>      PRINT_LOCALS = 8,
> +
> +    /* Set this flag if elided frames should not be printed.  */
> +    PRINT_ELIDE = 32,

Looks like 16 was elided.  :-)

LGTM.

Thanks,
Pedro Alves