Subject: Re: bug#24617: 26.0.50; Handlers in `condition-case' should have programmatic access to the backtrace

From: Helmut Eller <[email-masked]>
Date: Thu, 29 Dec 2016 10:01:48 +0100

On Wed, Dec 28 2016, Philipp Stephani wrote:

> Yes, that sounds like a good workaround, with the downside that other
> libraries might override signal-hook-function and disable that
> functionality.
> Do you know why ERT uses a custom debugger instead of
> signal-hook-function?

No. (I didn't write ERT.)  Maybe it's difficult to determine
whether/where a condition will be handled from a signal-hook-function.

>     Second, unconditionally copying the backtrace would be expensive
>
>
> Are you sure about that?

No, but I would be surprised if it were cheap.

Helmut