Re: .eh_frame

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

On 9 November 2014 17:12, Joerg Sonnenberger <joerg%britannica.bec.de@localhost> wrote:
>> >> o .eh_frame in kernel is not used yet, and safely removed from /netbsd
>> >
>> > Please do not.
>>
>> o Is it correct that .eh_frame is not used by anything at all at the moment?
>
> gdb should in principle, haven't tried. libunwind is not hooked into ddb
> (yet).

Can you be more specific?

A remote debugger will call on either .debug_frame or .eh_frame when
generating a back-trace - what it uses depends on what it chooses to
look for first at each address. In fact, ignoring the potential for
bugs, you could:
- strip .eh_frame
- strip all debug info except .debug_frame
and still have good back-traces without weighing down the kernel's
text segment with .eh_frame info.

Andrew