While local builds succeed fine, a build worker building in a chroot
environment is encountering errors when linking some items in tools/nss
and tests, e.g.
[ 469s] libtool: link: gcc -shared -fPIC -DPIC -Wl,--whole-archive nss/.libs/libnss_libvirt_impl.a -Wl,--no-whole-archive -lpthread -lutil -ltirpc -fstack-protector-strong -grecord-gcc-switches -O2 -fstack-protector-strong -g -Wl,--version-script=./nss/libvirt_nss.syms -Wl,-z -Wl,relro -Wl,-z -Wl,now -Wl,--no-copy-dt-needed-entries -Wl,-z -Wl,defs -grecord-gcc-switches -O2 -fstack-protector-strong -g -pthread -Wl,-soname -Wl,libnss_libvirt.so.2 -o nss/.libs/libnss_libvirt.so.2
[ 469s] nss/.libs/libnss_libvirt_impl.a(libvirt_nss_la-virjsoncompat.o): In function `virJSONJanssonOnce':
[ 469s] /home/abuild/rpmbuild/BUILD/libvirt-4.6.0/src/util/virjsoncompat.c:63: undefined reference to `dlopen'
[ 469s] /home/abuild/rpmbuild/BUILD/libvirt-4.6.0/src/util/virjsoncompat.c:79: undefined reference to `dlsym'
...
A similar problem was fixed in commit b018ada3 and inspires this fix.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
so it's not affected by flags that might be passed in $(*_LIBS) like
-L/usr/lib which might result in linking against system library and
requiring incorrect version of private symbols
Signed-off-by: Jan Palus <atler@pld-linux.org>
Undefined symbols are a bad thing in general because they can get
resolved in unexpected ways at runtime if multiple sources provide the
same symbol name. For example both glibc and libtirpc may provide XDR
symbols and we want to ensure that we resolve to libtirpc if that's what
we originally built against.
The toolchain maintainers thus strongly recommend that all applications
use the '-z defs' linker flag to prevent undefined symbols. This is
shortly becoming part of the default linker flags for RPMs. As an added
benefit this aligns Linux builds with Windows builds, where the linker
has never permitted undefined symbols.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
"ln" will not replace an existing symlink, so if you run 'make install'
twice, the second time will get an error:
ln: failed to create symbolic link 'virsh': File exists
We must always remove the symlink target first.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The bash-completion project documents that only those scripts
from $BASH_COMPLETIONS_DIR that share name with the current
command for which <TAB> was hit are loaded [1]. This means, that
vsh script we have there is not loaded. We have to create
symlinks for virsh and virt-admin.
At the same time, we have to create new RPM package because
virt-admin and client packages are independent. That means we
cannot place the vsh script in either of them. What we can do is
to have a different package that contains the completion script
and then virt-admin and client packages contain only the symlink
and require the bash-completion package.
1: https://github.com/scop/bash-completion#faq
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The functions defined in these sources are referenced all over
the place, however, compiler only when building with readline.
Thus when building without it linker gets sad as it can't find
them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that we have everything prepared let the fun begin. This
completer is very simple and returns domain names. Moreover,
depending on the command it can return just a subset of domains
(e.g. only running/paused/transient/.. ones).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The only purpose of this file is to be sourced. After that one
can use completion even for their bash:
# virsh list --<TAB><TAB>
--all --inactive ...
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Because WARN_CFLAGS and COVERAGE_CFLAGS are not set globally, we
rely on each binary built to include WARN_CFLAGS/COVERAGE_CFLAGS.
But it is easy to forget those - e.g. libvirt_shell.la. However,
don't enable WARN_FLAGS (i.e. don't include AM_CFLAGS) for
wireshark plugin - parts of that code are generated and trigger
some warnings.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Since update to glibc-2.26 removed the /usr/include/rpc/rpc.h we used until now,
it showed us a problem with not using XDR_CFLAGS properly. On linux that
variable has usually -I/usr/include/tirpc because we already probe for it
properly, we just don't use it everywhere we need. It is needed by wireshark
dissector as well as testutilsqemu.c (through includes) so the build fails with:
wireshark/src/packet-libvirt.c:33:10: fatal error: rpc/xdr.h: No such file or directory
#include <rpc/xdr.h>
^~~~~~~~~~~
and
In file included from ../src/logging/log_manager.h:29:0,
from ../src/qemu/qemu_domain.h:40,
from testutilsqemu.c:11:
../src/logging/log_protocol.h:9:10: fatal error: rpc/rpc.h: No such file or directory
#include <rpc/rpc.h>
^~~~~~~~~~~
Since lot of tests use testutilsqemu.c it is easier to add XDR_CFLAGS to
AM_CFLAGS than adding it to all $binary_CFLAGS. It's just for tests and we
already have bunch of CFLAGS there anyway.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Right-aligning backslashes when defining macros or using complex
commands in Makefiles looks cute, but as soon as any changes is
required to the code you end up with either distractingly broken
alignment or unnecessarily big diffs where most of the changes
are just pushing all backslashes a few characters to one side.
Generated using
$ git grep -El '[[:blank:]][[:blank:]]\\$' | \
grep -E '*\.([chx]|am|mk)$$' | \
while read f; do \
sed -Ei 's/[[:blank:]]*[[:blank:]]\\$/ \\/g' "$f"; \
done
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
When building with clang 4.0.0, virsh build fails like this:
gmake[3]: Entering directory '/usr/home/novel/code/libvirt/tools'
CC virsh-virsh.o
In file included from virsh.c:45:
In file included from /usr/local/include/readline/readline.h:31:
/usr/local/include/readline/rltypedefs.h:35:22: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
typedef int Function () __attribute__ ((deprecated));
^
void
/usr/local/include/readline/rltypedefs.h:36:24: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
typedef void VFunction () __attribute__ ((deprecated));
^
void
/usr/local/include/readline/rltypedefs.h:37:26: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
typedef char *CPFunction () __attribute__ ((deprecated));
^
void
/usr/local/include/readline/rltypedefs.h:38:28: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
typedef char **CPPFunction () __attribute__ ((deprecated));
^
void
In file included from virsh.c:45:
/usr/local/include/readline/readline.h:385:23: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
extern int rl_message ();
^
void
5 errors generated.
gmake[3]: *** [Makefile:2823: virsh-virsh.o] Error 1
Fix that by adding -D_FUNCTION_DEF to READLINE_CFLAGS to fix *Function
related warnings and add a check for stdarg.h so we have HAVE_STDARG_H
defined that's needed by the readline headers to use proper rl_message
declaration.
Bug report on the readline mailing list:
http://lists.gnu.org/archive/html/bug-readline/2017-05/msg00004.html
Introduce STRICT_FRAME_LIMIT_CFLAGS that will be used for
production code and RELAXED_FRAME_LIMIT_CFLAGS for tests.
Raising the limit for tests allows building them with clang
with optimizations disabled.
Add bhyve support to virt-host-validate(1). It checks for the
essential kernel modules to be available so that user can actually
start VMs, have networking and console access.
It uses the kldnext(2)/kldstat(2) routines to retrieve modules list.
As bhyve is only available on FreeBSD and these routines were available
long before bhyve appeared, not adding any specific configure checks
for that.
Also, update tools/Makefile.am to add
virt-host-validate-$driver.[hc] to the build only if the
appropriate driver is enabled.
So far the NSS module looks up only hostnames as provided by
guests themselves. However, there are some cases where this is
not enough: e.g. when there's a fresh new guest being installed
(with some generic hostname) say from a live ISO image; or some
(older) systems don't advertise their hostname in DHCP
transactions at all.
In cases like that it would be helpful if we translate domain
name as seen by libvirt too so that users can:
# virsh start $dom && ssh $dom
In order to achieve that new libvirt-guest module is introduced,
while older libvirt module maintains its current behaviour (that
is translating guest provided names into IP addresses).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since we're using autoconf to substitute the right value in
Makefile.am now, we can use a less generic name without running
into circular dependencies.
Adding $(prefix) in Makefile.am, as we were doing, means that
it would be prepended even when using --with-ws-plugindir,
which is something we don't want to happen.
Instead, we add it beforehand but take care that it doesn't
get expanded until make is called.
When we wanted to break huge and unmaintainable virsh into
smaller files first thing we did was to just move funcs into
virsh-.c files and then #include them from virsh. Having it done
this way we also needed to have them listed under EXTRA_DIST.
However, things got changed since then and now all the virsh-*.c
files are proper source files. Therefore they are listed under
virsh_SOURCES too. But for some reason we forgot to remove them
from EXTRA_DIST.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We do have something similar for installing init system files.
Basically I'm trying to avoid the following warning produced by
automake:
tools/Makefile.am:429: warning: uninstall-local was already defined in condition TRUE, which includes condition WITH_BSD_NSS ...
tools/Makefile.am:292: ... 'uninstall-local' previously defined here
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
No need to special-case this one: we can add it to EXTRA_DIST so
that it will be shipped in any case, and if WITH_LOGIN_SHELL
happens to be enabled we mark it for installation as well.
We can't use eg. @sysconfdir@ directly in the .pod file, because
pod2man(1) will interpret that as a variable name and format it
accordingly.
Instead, we use eg. SYSCONFDIR and use a subsequent sed(1) call
to turn it into the expected @sysconfdir@.
The generated man pages may contain information that depend on
the build configuration, so they should not be shipped but
rather always built on the user's machine.
After this commit, all man pages are generated using the same two
steps:
1. Process a source $command.pod file with pod2man(1) to obtain
a valid man page in $command.$section.in
2. Process $command.$section.in with sed(1) to obtain the final
man page in $command.$section
Instead of embedding the pod information inside the respective
source files, store them in separate files.
This allows us to reduce the number of custom build rules as
most of the information can be inferred for the file name;
moreover, text editors are more likely to use proper syntax
highlighting for standalone pod files.
According to the autoconf manual, using '$(LN_S) -f' is not
portable; remove the target explicitly beforehand to work around
this limitation.
Adjust some slightly awkward indentation while at it.
The current rule fails if the target already exists:
cd /home/jenkins/build/libvirt/lib && \
ln -s libnss_libvirt.so.1 nss_libvirt.so.1
ln: nss_libvirt.so.1: File exists
Makefile:3357: recipe for target 'install-exec-hook' failed
However, all other rules concerned with installation are
idempotent and will happily overwrite an existing target,
so this one should as well.
On BSD we are creating this symlink to libnss_libvirt.so called
nss_libvirt.so. That's just the way it is on BSD. However, when
uninstalling, we try to remove libnss_libvirt.so instead of the
symlink. Moreover, if file we are trying to remove does not exist
we error out instead of ignoring the error.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
virt-host-validate, just like virt-login-shell, doesn't make sense
on Windows, so we should avoid building it.
Make the tool optional and build it by default on all platforms
except Windows, erroring out if the user attempts to build it
anyway.
Explicitly add Linux and BSD syms files for nss to EXTRA_DIST
instead of using the LIBVIRT_NSS_SYMBOL_FILE variable, because its value
will point to either Linux or BSD syms file, but we need to ship both.
* tools/nss/libvirt_nss.[ch]: add BSD-comptabile wrappers and
register via the nss_module_register() interface
* m4/virt-nss.m4: add checks if we're building NSS for FreeBSD
* tools/Makefile.am: handle target library name differences, as
Linux needs libnss_libvirt.so.2 and FreeBSD needs
nss_libvirt.so.1. Also, different syms files have to be used
as Linux needs to export all the methods while FreeBSD
only needs to have nss_module_register()
* tests/nsstest.c, tests/nssmock.c: s/__linux__/NSS/
* tests/nssmock.c: pass int instead of mode_t to va_arg() to please
gcc 4.8
* libvirt_nss_bsd.syms: FreeBSD syms file
Even if nss is disabled, the build system tries to build some
targets like libnss_libvirt_impl.la and nsstest. Hide those
under the "if WITH_NSS" block like the rest of NSS plugin bits.
The implementation is pretty straightforward. Moreover, because
of the nature of things, gethostbyname_r and gethostbyname2_r can
be implemented at the same time too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Name Service Switch is a glibc feature responsible for many
things. Translating domain names into IP addresses and vice versa
is just one of them. However, currently it's the only
functionality that this commit is tickling. Well, in this commit
the plugin skeleton is introduced. Implementation to come in next
patches.
Because of the future testing, where the implementation is to be
linked with a test, this needs to go into static library. Linking
a program with an .so statically is not portable. Therefore a
dummy libnss_libvirt_impl library is being introduced too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In 50078cfbcb I've tried to fix distcheck but accidentally
broke rpm build. The problem is that rpm build not only sets
DESTDIR but also passes plugindir path. This results in double
DESTDIR being in the plugin path, Drop one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Even though the Makefile has WITH_WIRESHARK guards, the _SOURCES
variables are still processed when adding bits to the dist archive.
plugin.c is a generated file that is only built when wireshark is
enabled and it shouldn't be distributed, so use 'nodist'
