The GThread implementation is not functional enough to actually
run QEMU reliably. While it was potentially useful for debugging,
we have a scripts/qemugdb/coroutine.py to enable tracing of
ucontext coroutines in GDB, so that removes the only reason for
GThread to exist.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

The Trusty based builds run a little slower than the main container
based ones. This is also true for the latest version of Clang. The
builds are getting very close (and occasionally run over) the 50 minute
timeout. Rather than partitioning by target I just split them into
linux-user and system builds.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Although we've reduced the matrix to avoid repeating clang builds we can
still add an additional clang build to use the latest stable version of
clang which will typically be available on current distros.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

We test with both gcc and clang in order to detect cases
where clang issues warnings that gcc misses. To achieve
this though we don't need to build QEMU in multiple
different configurations. Just a single clang-on-linux
build will be sufficient, if we have an "all enabled"
config.

This cuts the number of build jobs from 21 to 16,
reducing the load imposed on shared Travis CI infra.
This will make it practical to enable jobs for other
interesting & useful configurations without DOS'ing
Travis to much.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

As it seems easy to break the ThreadSanitizer build we should defend it to
ensure that fixes get applied when it breaks. We use the Ubuntu GCC PPA
to get the latest GCC goodness.

As we need to use the -fuse-ld=gold work around we have to disable the
linux-user targets as these trip up the linker.

The make check run is also disabled for Travis but this can be
re-enabled once the check targets have been fixed.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20160930213106.20186-13-alex.bennee@linaro.org>

We want the travis build bot to post notifications on IRC only for the
master qemu repository and not the various forks/branches of
others. Currently there is no direct option to restrict the updates to
one repository. This is being worked upon by the developers and
tracked in https://github.com/travis-ci/travis-ci/issues/1094.

Until such time, we can use the workaround as posted in
ref. https://github.com/facebook/flow/pull/1822

.

This basically creates an ecrypted string which decrypts to qemu IRC
channel only on "qemu/qemu" repo and not on the forks. This enables
the build bot to notify the IRC only for the main repo.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

On travis-ci.org, all builds fail with
   /usr/include/features.h:324:11: error: unable to open bits/predefs.h

With "make docker-travis@ubuntu", they fail with
   /usr/include/features.h:374:13: error: unable to open sys/cdefs.h

With "make docker-travis@fedora", finally, they fail due to sparse
not being able to parse some #pragmas in glib headers.  Just kill
the thing from the CI builds.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AJB: tweak title for my OCD]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

If we want to run our docker based tests we'll need to do them on a
normal VM with docker support. Lets just enable the build on trusty for
now to check against a newer Ubuntu.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Let's ensure that block/nfs.o is built in Travis.

This patch depends on the following build fixes:
1. block/nfs: add missing #include "qapi/error.h"
2. block/nfs: add missing #include "qemu/cutils.h"

This patch also depends on Travis adding libnfs-dev to the list of
approved packages.  This patch can be safely committed but will not do
anything until the Travis maintainers allow libnfs-dev to be installed.
Please see the GitHub Issue I raised here:
https://github.com/travis-ci/apt-package-whitelist/issues/2788



Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

The move from Travis VMs to Containers came with a upgrade from 1.5
cores to 2. The received wisdom is -j N+1 means a core can be doing work
while other threads wait for IO to complete. This is hard to test on the
Travis infrastructure but an initial before/after eyeballing seems to
confirm it is an improvement.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

Travis has support for OSX builds. Making the setup work cleanly
involves a little hacking about with the .travis.yml file but rather
than make it too messy I've pushed all the "brew" install stuff into a
support script called ./scripts/macosx-brew.sh.

Currently only the default ./configure ${CONFIG} is built as I'm not
sure what extra coverage would come from the other build stanzas.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>

Remove the concept of TARGETS and build the complete target list for
each config combination. Now the matrix is just based on CONFIG stanzas
and we use the additional stuff for:

  - things that only work on one compiler (sparse, gcov, gprof)
  - combos where "make check" fails

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David Gibson <david@gibson.dropbear.id.au>

We disable "make check" for the gthread backend as it is broken.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: David 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: Alex Bennée <alex.bennee@linaro.org>
Tested-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

[Also update .travis.yml --enable-trace-backends=stderr
--Stefan]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-10-git-send-email-den@openvz.org
Signed-off-by: Stefan 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: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

We will change the default to "--enable-modules", let's cover it before
the switch.

Signed-off-by: Paolo 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Brian Jackson <iggy@theiggy.com>
Signed-off-by: Michael 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Brian Jackson <iggy@theiggy.com>
Signed-off-by: Michael 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Brian Jackson <iggy@theiggy.com>
Signed-off-by: Michael 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael 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: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

Purely cosmetic but satisfies my OCD.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael 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: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

Now the AArch64 targets are in mainline we can include them in our
Travis test matrix.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Now the AArch64 targets are in mainline we can include them in our
Travis test matrix.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter 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: Alex Bennée <alex@bennee.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>