Re: Xen 4.5 development update (October update). RC1 on 24th

[Olaf Hering <olaf@aepfle.de>]

On Mon, Oct 20, Konrad Rzeszutek Wilk wrote:

> On Mon, Oct 20, 2014 at 10:09:41AM +0200, Olaf Hering wrote:
> > On Fri, Oct 17, konrad.wilk@oracle.com wrote:
> > 
> > > by Boris and build and Makefile changes by Andrew (the ones by Olaf
> > > are all in?).
> > 
> > These are the outstanding changes in my own for-4.5 queue:
> > 
> >  pick 590db9e tools/mkrpm: improve version.release handling
> >  pick 3495d6c Separate runtime debug output from debug symbols   (v3)
> >  pick cde4d39 Add configure --with-extra-cflags-*
> >  pick e47f208 tools/hotplug: use configure --sysconfdir result
> >  pick f8b2e49 tools/hotplug: fix systemd service files for dom0
> >  pick 13a834b tools/hotplug: update dependency of var-lib-xenstored.mount
> > maybe 8a52b89 tools/hotplug: add helper script to visualize systemd dependencies
> >  pick c0af9cc README: remove references to unneeded python helpers
> >  pick b2ee641 Add INSTALL file
> 
> The INSTALL file and the 'fix' are of course OK.
> 
> For the rest, can you explain what would happen if we did not include them
> in Xen 4.5?

Without "tools/mkrpm: improve version.release handling" it is difficult
to update the xen.rpm because the Release: number is always zero.
'rpmball' is a new feature in 4.5, it should work properly right form
the start.


Without v3 of "Separate runtime debug output from debug symbols" the
hypervisor, parts of ocaml and qemu are still built with -g even with
'make debug_symbols=n'.  There is no agreement how the default should be
set, but thats outside the scope of this patch.


Without "Add configure --with-extra-cflags-*" the buildsystem will pick
"random" environment variables for CFLAGS. Now that we have the tools in
place they they should be set once with configure to have consistent
results if make is called from different shells.
I will send v2 of this patch to handle also --without-extra-cflags, this
makes the code consistent with other usage of AC_ARG_WITH() in that file.

Without "tools/hotplug: use configure --sysconfdir result" the newly
installed runlevel scripts will use system config files instead of the
files installed after configure --sysconfdir=/odd/path. This is a bug.


Olaf