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

[Volker Lendecke]

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.

Volker

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