weston/.gitlab-ci/virtme-scripts/run-weston-tests.sh

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#!/bin/bash
# folders that are necessary to run Weston tests
mkdir -p /tmp/tests
mkdir -p /tmp/.X11-unix
chmod -R 0700 /tmp
# set environment variables to run Weston tests
export XDG_RUNTIME_DIR=/tmp/tests
export LIBSEAT_BACKEND=seatd
# In our test suite, we use VKMS to run DRM-backend tests. The order in which
# devices are loaded is not predictable, so the DRM node that VKMS takes can
# change across each boot. That's why we have this one-liner shell script to get
# the appropriate node for VKMS.
export WESTON_TEST_SUITE_DRM_DEVICE=$(basename /sys/devices/platform/vkms/drm/card*)
# To run tests in the CI that exercise the zwp_linux_dmabuf_v1 implementation in
# Weston, we use VGEM to allocate buffers.
export WESTON_TEST_SUITE_ALLOC_DEVICE=$(basename /sys/devices/platform/vgem/drm/card*)
# ninja test depends on meson, and meson itself looks for its modules on folder
# $HOME/.local/lib/pythonX.Y/site-packages (the Python version may differ).
# build-deps.sh installs dependencies to /usr/local.
# virtme starts with HOME=/tmp/roothome, but as we installed meson on user root,
# meson can not find its modules. So we change the HOME env var to fix that.
export HOME=/root
export PATH=$HOME/.local/bin:$PATH
export PATH=/usr/local/bin:$PATH
export SEATD_LOGLEVEL=debug
CI: Never unload llvmpipe DSO whilst testing This commit is truly horrible. We want to run ASan with leak checking enabled in CI so we can catch memory leaks before they're introduced. This works well with Pixman, and with NIR-only drivers like iris or Panfrost. But when we run under llvmpipe - which we do under CI - we start failing because: - Mesa pulls in llvmpipe via dlopen - llvmpipe pulls in LLVM itself via DT_NEEDED - initialising LLVM's global type/etc systems performs thread-local allocations - llvmpipe can't free those allocations since the application might also be using LLVM - Weston stops using GL and destroys all GL objects, leading to Mesa unloading llvmpipe like it should - with everything disappearing from the process's vmap, ASan can no longer keep track of still-reachable pointers - tests fail because LLVM is 'leaking' Usually, an alternative is to LD_PRELOAD a shim which overrides dlclose() to be a no-op. This is not usable here, because when $LD_PRELOAD is not empty and ASan is not first in it, ASan immediately errors out. Prepending ASan doesn't work, because we run our tests through Meson (which also invokes Ninja), leading to LSan exploding over CPython and Ninja, which is not what we're interested in. It would be possible to inject _both_ ASan and a dlclose-does-nothing shim DSO into the LD_PRELOAD environment for every test, but that seems even worse, especially as Meson strongly discourages globbing for random files in the root. So, here we are, doing what we can: finding where swrast_dri.so (aka llvmpipe) lives, stashing that in an environment variable, and deliberately leaking a dlopen handle which we never close to ensure that neither llvmpipe nor LLVM leave our process's address space before we exit. Signed-off-by: Daniel Stone <daniels@collabora.com>
2022-06-25 06:59:52 +03:00
# Terrible hack, per comment in weston-test-runner.c's main(): find Mesa's
# llvmpipe driver module location
export WESTON_CI_LEAK_DL_HANDLE=$(find /usr/local -name swrast_dri.so -print 2>/dev/null || true)
# run the tests and save the exit status
# we give ourselves a very generous timeout multiplier due to ASan overhead
echo 0x1f > /sys/module/drm/parameters/debug
seatd-launch -- meson test --no-rebuild --timeout-multiplier 4
# note that we need to store the return value from the tests in order to
# determine if the test suite ran successfully or not.
TEST_RES=$?
dmesg &> dmesg.log
echo 0x00 > /sys/module/drm/parameters/debug
# create a file to keep the result of this script:
# - 0 means the script succeeded
# - 1 means the tests failed, so the job itself should fail
TESTS_RES_PATH=$(pwd)/tests-res.txt
echo $TEST_RES > $TESTS_RES_PATH
# shutdown virtme
sync
poweroff -f