build: explicitly link all modules with libvirt.so

The dlopened modules we currently build all use various symbols from
libvirt.so, but don't actually link to it. They rely on the libvirtd
daemon re-exporting the libvirt.so symbols. This means that at the
time the modules are linked, they contain a huge number of undefined
symbols. It also means that these undefined symbols are not versioned,
so despite us providing a LIBVIRT_PRIVATE_XXXX version that
intentionally changes on every release, the loadable modules could
actually be loaded into any libvirtd regardless of version.

This change explicitly links all modules against libvirt.so so
that they don't rely on the re-export behave and can be fully resolved
at build time. This will give us a stronger guarantee modules will
actually be loadable at runtime and that we're using modules from the
matched build.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

src/Makefile.am

@@ -1340,7 +1340,7 @@ noinst_LTLIBRARIES += libvirt_driver_xen_impl.la
 libvirt_driver_xen_la_SOURCES =
 libvirt_driver_xen_la_LIBADD = libvirt_driver_xen_impl.la
 mod_LTLIBRARIES += libvirt_driver_xen.la
-libvirt_driver_xen_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_xen_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_xen_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_xen_impl_la_CFLAGS = \
@@ -1386,7 +1386,7 @@ libvirt_driver_vbox_la_SOURCES =
 libvirt_driver_vbox_la_LIBADD = libvirt_driver_vbox_impl.la
 mod_LTLIBRARIES += \
 		libvirt_driver_vbox.la
-libvirt_driver_vbox_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_vbox_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_vbox_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_vbox_impl_la_CFLAGS = \
@@ -1415,7 +1415,7 @@ noinst_LTLIBRARIES += libvirt_driver_libxl_impl.la
 libvirt_driver_libxl_la_SOURCES =
 libvirt_driver_libxl_la_LIBADD = libvirt_driver_libxl_impl.la
 mod_LTLIBRARIES += libvirt_driver_libxl.la
-libvirt_driver_libxl_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_libxl_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_libxl_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_libxl_impl_la_CFLAGS = \
@@ -1427,8 +1427,7 @@ libvirt_driver_libxl_impl_la_CFLAGS = \
 		$(AM_CFLAGS)
 libvirt_driver_libxl_impl_la_LDFLAGS = $(AM_LDFLAGS)
 libvirt_driver_libxl_impl_la_LIBADD = $(LIBXL_LIBS) \
-				      libvirt_xenconfig_libxl.la \
-				      libvirt_secret.la
+				      libvirt_xenconfig_libxl.la
 libvirt_driver_libxl_impl_la_SOURCES = $(LIBXL_DRIVER_SOURCES)
 
 conf_DATA += libxl/libxl.conf
@@ -1445,7 +1444,7 @@ noinst_LTLIBRARIES += libvirt_driver_qemu_impl.la
 libvirt_driver_qemu_la_SOURCES =
 libvirt_driver_qemu_la_LIBADD = libvirt_driver_qemu_impl.la
 mod_LTLIBRARIES += libvirt_driver_qemu.la
-libvirt_driver_qemu_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_qemu_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_qemu_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_qemu_impl_la_CFLAGS = \
@@ -1461,7 +1460,6 @@ libvirt_driver_qemu_impl_la_LIBADD = $(CAPNG_LIBS) \
                                 $(GNUTLS_LIBS) \
 				$(LIBNL_LIBS) \
 				$(LIBXML_LIBS) \
-				libvirt_secret.la \
 				$(NULL)
 libvirt_driver_qemu_impl_la_SOURCES = $(QEMU_DRIVER_SOURCES)
 
@@ -1481,7 +1479,7 @@ noinst_LTLIBRARIES += libvirt_driver_lxc_impl.la
 libvirt_driver_lxc_la_SOURCES =
 libvirt_driver_lxc_la_LIBADD = libvirt_driver_lxc_impl.la
 mod_LTLIBRARIES += libvirt_driver_lxc.la
-libvirt_driver_lxc_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_lxc_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_lxc_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_lxc_impl_la_CFLAGS = \
@@ -1518,7 +1516,7 @@ noinst_LTLIBRARIES += libvirt_driver_uml_impl.la
 libvirt_driver_uml_la_SOURCES =
 libvirt_driver_uml_la_LIBADD = libvirt_driver_uml_impl.la
 mod_LTLIBRARIES += libvirt_driver_uml.la
-libvirt_driver_uml_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_uml_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_uml_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_uml_impl_la_CFLAGS = \
@@ -1590,7 +1588,7 @@ noinst_LTLIBRARIES += libvirt_driver_vz_impl.la
 libvirt_driver_vz_la_SOURCES =
 libvirt_driver_vz_la_LIBADD = libvirt_driver_vz_impl.la
 mod_LTLIBRARIES += libvirt_driver_vz.la
-libvirt_driver_vz_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_vz_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_vz_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 libvirt_driver_vz_impl_la_CFLAGS = \
 		-I$(srcdir)/conf \
@@ -1606,7 +1604,7 @@ noinst_LTLIBRARIES += libvirt_driver_bhyve_impl.la
 libvirt_driver_bhyve_la_SOURCES =
 libvirt_driver_bhyve_la_LIBADD = libvirt_driver_bhyve_impl.la
 mod_LTLIBRARIES += libvirt_driver_bhyve.la
-libvirt_driver_bhyve_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_bhyve_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_bhyve_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 
 libvirt_driver_bhyve_impl_la_CFLAGS = \
@@ -1629,7 +1627,7 @@ noinst_LTLIBRARIES += libvirt_driver_network_impl.la
 libvirt_driver_network_la_SOURCES =
 libvirt_driver_network_la_LIBADD = libvirt_driver_network_impl.la
 mod_LTLIBRARIES += libvirt_driver_network.la
-libvirt_driver_network_la_LIBADD += ../gnulib/lib/libgnu.la \
+libvirt_driver_network_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la \
 	$(LIBNL_LIBS) \
 	$(DBUS_LIBS) \
 	$(NULL)
@@ -1663,7 +1661,7 @@ if WITH_UDEV
 libvirt_driver_interface_la_CFLAGS += $(UDEV_CFLAGS)
 libvirt_driver_interface_la_LIBADD += $(UDEV_LIBS)
 endif WITH_UDEV
-libvirt_driver_interface_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_interface_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_interface_la_LDFLAGS += -module -avoid-version
 libvirt_driver_interface_la_SOURCES = $(INTERFACE_DRIVER_SOURCES)
 endif WITH_INTERFACE
@@ -1674,7 +1672,7 @@ libvirt_driver_secret_la_CFLAGS = \
 		-I$(srcdir)/access \
 		-I$(srcdir)/conf \
 		$(AM_CFLAGS)
-libvirt_driver_secret_la_LIBADD = ../gnulib/lib/libgnu.la
+libvirt_driver_secret_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_secret_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 libvirt_driver_secret_la_SOURCES = $(SECRET_DRIVER_SOURCES)
 endif WITH_SECRETS
@@ -1702,7 +1700,7 @@ noinst_LTLIBRARIES += libvirt_driver_storage_impl.la
 libvirt_driver_storage_la_SOURCES =
 libvirt_driver_storage_la_LIBADD = libvirt_driver_storage_impl.la
 mod_LTLIBRARIES += libvirt_driver_storage.la
-libvirt_driver_storage_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_storage_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_storage_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
 libvirt_driver_storage_impl_la_SOURCES += $(STORAGE_DRIVER_SOURCES)
 
@@ -1715,6 +1713,7 @@ libvirt_storage_backend_fs_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_fs.la
 libvirt_storage_backend_fs_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_fs_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE
 
 if WITH_STORAGE_LVM
@@ -1727,6 +1726,7 @@ libvirt_storage_backend_logical_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_logical.la
 libvirt_storage_backend_logical_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_logical_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_LVM
 
 if WITH_STORAGE_ISCSI
@@ -1740,6 +1740,7 @@ libvirt_storage_backend_iscsi_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_iscsi.la
 libvirt_storage_backend_iscsi_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_iscsi_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_ISCSI
 
 if WITH_STORAGE_SCSI
@@ -1751,6 +1752,7 @@ libvirt_storage_backend_scsi_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_scsi.la
 libvirt_storage_backend_scsi_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_scsi_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_SCSI
 
 if WITH_STORAGE_MPATH
@@ -1765,6 +1767,7 @@ libvirt_storage_backend_mpath_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_mpath.la
 libvirt_storage_backend_mpath_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_mpath_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_MPATH
 
 if WITH_STORAGE_DISK
@@ -1776,6 +1779,7 @@ libvirt_storage_backend_disk_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_disk.la
 libvirt_storage_backend_disk_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_disk_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_DISK
 
 if WITH_STORAGE_RBD
@@ -1789,6 +1793,7 @@ libvirt_storage_backend_rbd_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_rbd.la
 libvirt_storage_backend_rbd_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_rbd_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_RBD
 
 if WITH_STORAGE_SHEEPDOG
@@ -1809,6 +1814,7 @@ noinst_LTLIBRARIES += libvirt_storage_backend_sheepdog_priv.la
 storagebackend_LTLIBRARIES += libvirt_storage_backend_sheepdog.la
 libvirt_storage_backend_sheepdog_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_sheepdog_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_SHEEPDOG
 
 if WITH_STORAGE_GLUSTER
@@ -1823,6 +1829,7 @@ libvirt_storage_backend_gluster_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_gluster.la
 libvirt_storage_backend_gluster_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_gluster_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_GLUSTER
 
 if WITH_STORAGE_ZFS
@@ -1834,6 +1841,7 @@ libvirt_storage_backend_zfs_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_zfs.la
 libvirt_storage_backend_zfs_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_zfs_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_ZFS
 
 if WITH_STORAGE_VSTORAGE
@@ -1846,6 +1854,7 @@ libvirt_storage_backend_vstorage_la_CFLAGS = \
 storagebackend_LTLIBRARIES += libvirt_storage_backend_vstorage.la
 libvirt_storage_backend_vstorage_la_LDFLAGS = \
 	-module -avoid-version $(AM_LDFLAGS)
+libvirt_storage_backend_vstorage_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 endif WITH_STORAGE_VSTORAGE
 
 if WITH_NODE_DEVICES
@@ -1873,7 +1882,7 @@ libvirt_driver_nodedev_la_LIBADD += $(UDEV_LIBS) $(PCIACCESS_LIBS)
 endif WITH_UDEV
 endif WITH_LIBVIRTD
 
-libvirt_driver_nodedev_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_nodedev_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_nodedev_la_LDFLAGS += -module -avoid-version
 endif WITH_NODE_DEVICES
 
@@ -1896,7 +1905,7 @@ libvirt_driver_nwfilter_impl_la_LIBADD = \
 		$(LIBPCAP_LIBS) \
 		$(LIBNL_LIBS) \
 		$(DBUS_LIBS)
-libvirt_driver_nwfilter_impl_la_LIBADD += ../gnulib/lib/libgnu.la
+libvirt_driver_nwfilter_impl_la_LIBADD += libvirt.la ../gnulib/lib/libgnu.la
 libvirt_driver_nwfilter_impl_la_LDFLAGS += -module -avoid-version
 libvirt_driver_nwfilter_impl_la_SOURCES = $(NWFILTER_DRIVER_SOURCES)
 endif WITH_NWFILTER
@@ -2596,8 +2605,7 @@ lockd_la_CFLAGS = -I$(srcdir)/conf \
 		$(XDR_CFLAGS) \
 		$(AM_CFLAGS)
 lockd_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
-lockd_la_LIBADD = ../gnulib/lib/libgnu.la \
-	$(NULL)
+lockd_la_LIBADD = libvirt.la ../gnulib/lib/libgnu.la
 augeas_DATA += locking/libvirt_lockd.aug
 if WITH_DTRACE_PROBES
 lockd_la_LIBADD += libvirt_probes.lo
@@ -2878,8 +2886,7 @@ lockdriver_LTLIBRARIES += sanlock.la
 sanlock_la_SOURCES = $(LOCK_DRIVER_SANLOCK_SOURCES)
 sanlock_la_CFLAGS = -I$(srcdir)/conf $(AM_CFLAGS)
 sanlock_la_LDFLAGS = -module -avoid-version $(AM_LDFLAGS)
-sanlock_la_LIBADD = -lsanlock_client \
-		../gnulib/lib/libgnu.la
+sanlock_la_LIBADD = -lsanlock_client libvirt.la ../gnulib/lib/libgnu.la
 
 augeas_DATA += locking/libvirt_sanlock.aug
 augeastest_DATA += test_libvirt_sanlock.aug