As we are now running "make check" on more of the matrix it is worth
making more of an effort to reduce the overall load on Travis. I've done
a few things:

  - Combining a number of the targets
  - Building one target for each ancillary build
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Tested-by: NDavid Gibson <david@gibson.dropbear.id.au>

Travis support ccache on a cache-per-branch basis. Given not much of the
build changes between pushes as well as the duplication in each build it
seems worthwhile enabling this.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Tested-by: NDavid Gibson <david@gibson.dropbear.id.au>

We disable "make check" for the gthread backend as it is broken.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Tested-by: NDavid Gibson <david@gibson.dropbear.id.au>

We only ran make check once before it used to be an unreliable target.
It was only a stop gap measure and we should be able to revert it now.
This also stops us needing a large all-MMU build.

We disable "make check" for a couple of the extra config targets which
are currently broken.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Tested-by: NDavid Gibson <david@gibson.dropbear.id.au>

This moves the Travis tests from the legacy VM infrastructure (which
only seems to run 5-6 jobs at once) to the new container based approach.

The principle difference is there is no sudo in the containers so all
packages are installed using the apt add-on. This means one of the build
combinations can be dropped as it was only for checking the build with
additional packages.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Tested-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>

[Also update .travis.yml --enable-trace-backends=stderr
--Stefan]
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NDenis V. Lunev <den@openvz.org>
Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-10-git-send-email-den@openvz.org
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

ed173cb7 ".travis.yml: remove "make check" from main matrix" stopped running
make check for all the Travis build targets for various reasons.  It
continued to run make check on one Travis build, which builds for a big
list of all (? nearly all) our supported softmmu targets.

Unfortunately, due to a spacing / quoting error it only actually builds for
the alpha, arm, aarch64 and cris targets.  Specifically, the list of
targets is split over several lines.  Even with YAML folding, this will
leave spaces in the list, meaning $TARGETS won't have the value we need.

I had a look at the YAML spec and I couldn't quickly see a way of splitting
the list so that it doesn't end up with spaces, so this patch fixes the
problem by putting the whole list on one huge line.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

We will change the default to "--enable-modules", let's cover it before
the switch.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

There are problems with unreliability in "make check" which still need
to be tracked down. As the tests are broadly the same for all targets if
added one explicit target to the matrix to run it. However this does
build all softmmu targets to ensure they at least "run"
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Reviewed-by: NBrian Jackson <iggy@theiggy.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

A significant portion of the build time is spent initialising all the
sub-modules we use in the source tree. Often this is almost as long as
the build itself. By pre-seeding the .git/modules tree this will
hopefully improve things.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Reviewed-by: NBrian Jackson <iggy@theiggy.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

The Travis VMs have 1.5 cores so we might as well make some use of the
paralellism.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Reviewed-by: NBrian Jackson <iggy@theiggy.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

At the same time I've grouped the $ARCH-linux-user and $ARCH-softmmu
builds together (hoping FS cache helps) and grouped all $ARCH-softmmu
only builds into one target. This reduces the build matrix slightly
which will hopefully help with build times.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Adds support to compile QEMU with multiple tracing backends at the same time.

For example, you can compile QEMU with:

  $ ./configure --enable-trace-backends=ftrace,dtrace

Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.

This patch allows having both available without recompiling QEMU.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

I'm trying to avoid spamming the IRC channel (not overly likely as
builds take a while). So failure will always be reported but if the
build continues to work then the IRC notifications will be quiet.

Note any GitHub based repository with Travis enabled will use this
notification. If it proves to be too spammy we may want to ask users not
to use Travis themselves although this seems sub-optimal.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Purely cosmetic but satisfies my OCD.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

This build was disabled while the lttng tracing was broken. Stefan has
recently submitted a pull request with it re-enabled.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

The current builds don't include all the features which are
auto-detected and then disabled when the appropriate test packages don't
exist. I've added another target that enables all known additional
packages for increased coverage. I didn't add it to the core package
list to reduce build time.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Now the AArch64 targets are in mainline we can include them in our
Travis test matrix.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Now the AArch64 targets are in mainline we can include them in our
Travis test matrix.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

This adds a build matrix definition for travis-ci.org continuous
integration service. It is usable on any public repository hosted on
GitHub. Once you have created an account signed into Travis you can
enable it on selected projects via travis-ci.org/profile. Alternatively
you can configure the service hooks on GitHub via the repository
Settings tab,then Service Hooks and selecting Travis.

Once setup Travis will automatically test every push as well as any pull
requests submitted to that repository.

The build matrix is currently split by target architecture (see TARGETS
environment variable) because a full build of QEMU can take some time.
This way you get quick feedback for any obvious errors. The additional
environment variables exist to allow additional builds to tweak the
environment. These are:

EXTRA_CONFIG - extra terms passed to configure
EXTRA_PKGS - extra dev packages to install
TEST_CMD - default "make check", can be overridden

I've confined the additional stuff to x86/x86_64 for convenience.

As Travis supports clang the main builds are done twice (once for gcc
and once for clang). However clang is disabled for the debug/trace
builds for the purposes of brevity.

Other wrinkles:

 * The lttng user-space tracing back-end is disabled
   (it is currently horribly broken)
 * The ftrace back-end doesn't run "make check"
   (it requires a mounted debugfs to work)
 * There are two debug enabled build (with and without TCG interpreter)
Signed-off-by: NAlex Bennée <alex@bennee.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>