Re: [PATCH] gdb/python: Handle unnamed frames in caller-matching functions

[Tom Tromey <tom@tromey.com>]

>>>>> Dmitry Ivanov (A) <dmitry.ivanov1@huawei.com> writes:

> This is my first GDB contribution.

Hi.  However you sent this, the mail got pretty mangled somewhere.
There are a lot of extra newlines.  So it can't be applied as-is.

> +        frame_name = frame.name()
> +        return frame_name is not None and re.match(name.string(), frame_name) is not None

I wonder if instead the None case should be turned into an empty string
here, so a user of $_caller_matches could match against "^$" to detect
nameless frames.

I think this would be as easy as

    frame_name = frame.name() or ""

In this case perhaps the documentation could be updated a bit as well.

> +# Prepend an unnamed frame to the current stack without depending on
> +# missing symbols in the host's runtime libraries.

Cool technique.

Tom