[libvirt] [PATCH 4/4] Fix symbol exports & remove duplicated libvirt_util.la linkage
Daniel Veillard
veillard at redhat.com
Thu Oct 14 14:22:29 UTC 2010
On Tue, Oct 12, 2010 at 06:32:18PM +0100, Daniel P. Berrange wrote:
> From: Miloslav Trmač <mitr at redhat.com>
>
> The libvirt_util.la library was mistakenly linked into libvirtd
> directly. Since libvirt_util.la is already linked to libvirt.so,
> this resulted in libvirtd getting two copies of the code and
> more critically 2 copies of static global variables.
>
> Testing in turn exposed a issue with loadable modules. The
> gnulib replacement functions are not exported to loadable
> modules. Rather than trying to figure out the name sof all
> gnulib functions & export them, just linkage all loadable
> modules against libgnu.la statically.
>
> * daemon/Makefile.am: Remove linkage of libvirt_util.la
> and libvirt_driver.la
> * src/Makefile.am: Link driver modules against libgnu.la
> * src/libvirt.c: Don't try to load modules which were
> compiled out
> * src/libvirt_private.syms: Export all other internal
> symbols that are required by drivers
Hum, weird, I tried to o a "make rpm" with that patch and got
a linking error due to multiple definitions coming from gnulib:
CCLD libvirt_lxc
CCLD libvirt.la
copying selected object files to avoid basename conflicts...
../gnulib/lib/.libs/libgnu.a(areadlink.o): In function `areadlink':
/u/veillard/rpms/BUILD/libvirt-0.8.4/gnulib/lib/areadlink.c:58:
multiple definition of `areadlink'
./.libs/libvirt_driver_phyp.a(areadlink.o):/u/veillard/rpms/BUILD/libvirt-0.8.4/gnulib/lib/areadlink.c:58:
first defined here
../gnulib/lib/.libs/libgnu.a(base64.o): In function `base64_encode':
/u/veillard/rpms/BUILD/libvirt-0.8.4/gnulib/lib/base64.c:79:
multiple definition of `base64_encode'
So patches 1-3 look fine to me but that one seems to still have a
problem,
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel at veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
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