Re: .eh_frame

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Mon, Nov 10, 2014 at 01:40:59AM +0900, Masao Uebayashi wrote:
> On Mon, Nov 10, 2014 at 1:24 AM, Joerg Sonnenberger
> <joerg%britannica.bec.de@localhost> wrote:
> > On Sun, Nov 09, 2014 at 09:26:45PM +0900, Masao Uebayashi wrote:
> >> o .eh_frame is GNU extension debug info to unwind stack [1]
> >
> > No.
> 
> Ian Lance Taylor said that it is similar to DWARF .debug_frame, but different.

Yes, but it is not a GNU extension.

> >> 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).

> o Can users safely trim .eh_frame from her/his kernel?

Yes, but it should not be the default behavior...

Joerg