This patch adds sudo to the CI container and also adds the gha user as a
member of the sudo group along with making any member of the sudo group
able to run commands as root without a password. This is primarily
intended to enable installing new software through apt-get without
having to rebuild the container.
This patch sets the default user in the linux CI container to a non-root
user, which enables properly testing a couple of features, particularly
in libcxx.
This patch adds some additional system packages to the CI container.
These are necessary for use in the new premerge workflows. The size
increase is not super small, but should be manageable with the size
increase being about 100MB.
This patch adds a windows CI container mostly based off of the existing
container used for Buildkite
(a687e33c37/containers/buildkite-windows/Dockerfile (L1)).
This is intended to be a starting point as we transition to Github
Actions with the eventual plan being to build a custom windows toolchain
similar to what we do on Linux.
This patch bumps the CI container LLVM version to 18.1.8. This should've
been bumped a while ago, but I just noticed that it was out of date.
This also allows us to drop a patch that we manually had to add as it is
by default included in v18.
This patch adjusts the build process for building the toolchain for the
CI container to perform more rigorous perf-training for PGO,
particularly building the entirety of LLVM as that is what showed the
best results while benchmarking. This patch also splits the job into two
stages to avoid timeouts due to the large increase in buildtime. There
are a couple other hacks added in here to make things work that we can
do away with eventually once we're able to run jobs like this on more
powerful self-hosted runners.
Only the stage2-distribution target is built by default for the
stage2 distribution installation target. This means that we don't get a
BOLT optimized binary. This patch explicitly builds the
stage2-clang-bolt target before the distribution installation target so
that the clang binary is optimized before it gets installed.
This patch adjusts the Docker container intended for CI use to contain a
PGO+ThinLTO+BOLT optimized clang. The toolchain is built within a Github
action and takes ~3.5 hours. No caching is utilized. The current PGO
optimization is fairly minimal, only running clang over hello world.
This can be adjusted as needed.
