From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: Build problem: note:
	'xtl_createlogger_stdiostream' is defined in DSO .. so try adding it	to
	the linker command line... libxenctrl.so.4.0: could not read
	symbols:	Invalid operation
Date: Wed, 23 Mar 2011 11:52:55 -0400
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To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Christoph Egger <Christoph.Egger@amd.com>
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On Wed, Mar 23, 2011 at 03:12:58PM +0000, Ian Campbell wrote:
> On Tue, 2011-03-22 at 17:25 +0000, Ian Campbell wrote:
> > On Tue, 2011-03-22 at 17:16 +0000, Konrad Rzeszutek Wilk wrote:
> > > On Mon, Mar 21, 2011 at 03:53:25PM +0000, Ian Campbell wrote:
> > > > On Mon, 2011-03-21 at 14:53 +0000, Ian Jackson wrote:
> > > > > Ian Campbell writes ("Re: [Xen-devel] Build problem: note: 'xtl_createlogger_stdiostream' is defined in DSO .. so try adding it to the linker command line... libxenctrl.so.4.0: could not read symbols: Invalid operation"):
> > > > > > xl: link against libxenctrl
> > > > > 
> > > > > I've applied this, thanks.  Although I don't understand why the build
> > > > > failed for Konrad and not me or my test system.
> > > > 
> > > > Me neither.
> > > 
> > > I am not sure either. Here is another with todays pull:
> > > 
> > > gcc    -o xl xl.o xl_cmdimpl.o xl_cmdtable.o libxlutil.so -L/home/konrad/ssd/xtt/xen-unstable/tools/libxl/../../tools/libxl -Wl,-rpath-link=/home/konrad/ssd/xtt/xen-unstable/tools/libxl/../../tools/libxc -Wl,-rpath-link=/home/konrad/ssd/xtt/xen-unstable/tools/libxl/../../tools/xenstore -Wl,-rpath-link=/home/konrad/ssd/xtt/xen-unstable/tools/libxl/../../tools/blktap2/control -lxenlight -L/home/konrad/ssd/xtt/xen-unstable/tools/libxl/../../tools/libxc -lxenctrl
> > > /usr/bin/ld: xl_cmdimpl.o: undefined reference to symbol 'uuid_parse@@UUID_1.0'
> > > /usr/bin/ld: note: 'uuid_parse@@UUID_1.0' is defined in DSO /lib64/libuuid.so.1 so try adding it to the linker command line
> > > /lib64/libuuid.so.1: could not read symbols: Invalid operation
> > 
> > This is due to the use of the uuid library being inlined in the libxl
> > headers, so the user of libxl can end up with linking requirements due
> > to libxl header internals. I think the right fix is to move these out of
> > line like I did with essentially the same thing in blktap2. I'll take a
> > look shortly.
> 
> Konrad, Jeremy,
> 
> Does this help?

Yes!