8a972813ba
5763b232e6ci: return to using Ubuntu 22.04 in MSAN jobs (fanquake)d3cbcbf626ci: compile clang and compiler-rt in MSAN jobs (fanquake)796bd1d0d1ci: use LLVM 16.0.4 in MSAN jobs (fanquake)883bc9f561ci: remove extra CC & CXX from MSAN jobs (fanquake)2d4f4b8f29ci: standardize custom libc++ usage in MSAN jobs (fanquake) Pull request description: This reworks the MSAN CIs, to first compile Clang and compiler-rt (using GCC 12), and then, compile an MSAN instrumented libc++ using the just-built Clang 16. This fixes the `native_fuzz_with_msan` job, working around https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1005341, by not using the Debian provided Clang/LLVM. Also included are changes to streamline how we use our "custom libc++", according to upstream: https://releases.llvm.org/16.0.0/projects/libcxx/docs/UsingLibcxx.html#using-a-custom-built-libc, as well as other minor cleanups in the CI configs. An example job is currently running in the qa-assets repo: https://github.com/bitcoin-core/qa-assets/pull/129 (https://cirrus-ci.com/task/4632561431871488). ACKs for top commit: dergoegge: utACK5763b232e6Tree-SHA512: 4f2a6e0b796bb1830b8346dd1e55eaa86a79037b8b4f16a336c1e29f4fc460acca2ecba076635459370bcbb4009333cb79d27ef1521c1fb5db7599cd5bdf558c
CI Scripts
This directory contains scripts for each build step in each build stage.
Running a Stage Locally
Be aware that the tests will be built and run in-place, so please run at your own risk. If the repository is not a fresh git clone, you might have to clean files from previous builds or test runs first.
The ci needs to perform various sysadmin tasks such as installing packages or writing to the user's home directory. While it should be fine to run the ci system locally on you development box, the ci scripts can generally be assumed to have received less review and testing compared to other parts of the codebase. If you want to keep the work tree clean, you might want to run the ci system in a virtual machine with a Linux operating system of your choice.
To allow for a wide range of tested environments, but also ensure reproducibility to some extent, the test stage
requires bash, docker, and python3 to be installed. To install all requirements on Ubuntu, run
sudo apt install bash docker.io python3
To run the test stage with a specific configuration,
FILE_ENV="./ci/test/00_setup_env_arm.sh" ./ci/test_run_all.sh
Configurations
The test files (FILE_ENV) are constructed to test a wide range of
configurations, rather than a single pass/fail. This helps to catch build
failures and logic errors that present on platforms other than the ones the
author has tested.
Some builders use the dependency-generator in ./depends, rather than using
the system package manager to install build dependencies. This guarantees that
the tester is using the same versions as the release builds, which also use
./depends.
If no FILE_ENV has been specified or values are left out, 00_setup_env.sh
is used as the default configuration with fallback values.
It is also possible to force a specific configuration without modifying the file. For example,
MAKEJOBS="-j1" FILE_ENV="./ci/test/00_setup_env_arm.sh" ./ci/test_run_all.sh
The files starting with 0n (n greater than 0) are the scripts that are run
in order.
Cache
In order to avoid rebuilding all dependencies for each build, the binaries are cached and re-used when possible. Changes in the dependency-generator will trigger cache-invalidation and rebuilds as necessary.