[PATCH] Provide a simple backtrace in the samba AD DC also

[Andrew Bartlett]

On Tue, 2018-04-10 at 08:11 +0200, Volker Lendecke via samba-technical
wrote:
> On Tue, Apr 10, 2018 at 05:00:32PM +1200, Andrew Bartlett via samba-technical wrote:
> > smbd has for a long time been able to produce a simple internal
> > backtrace.
> > 
> > This patch allows 'samba' to do the same, by bringing that code into
> > lib/util.  An un-used IRIX mode, lost since the move to waf, was
> > removed to allow this to happen.  (That mode used become_root()). 
> > 
> > This is important because gdb_backtrace as a panic action is not
> > compatible with gitlab CI, so without this we have no way to tell where
> > the fault is. 
> > 
> > The cstyle.py failures are all in the moved code:
> > 
> > ad84ecfd836 s3-lib: Remove support for libexc for IRIX backtraces
> > 2469ab654a3 lib/util: Log PANIC before calling pacic action just like
> > s3
> > 212ae4db4bb lib/util: Move log_stack_trace() to common code
> 
> Why do you have to move this to common code? The waf targets in
> source3/ are available everywhere. I'm asking because this relocation
> makes "git blame" harder to follow, at least with my limited knowledge
> of git.

The rest of util.c depends on all sorts of high-level things like the
s3 loadparm.  By moving it out we avoid low level code depending on
high level code.

Andrew Bartlett

-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba