support Ubuntu arm64 runners with sccache variant #280
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andrurogerz
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Jan 23, 2025
## Purpose Increase ds2 test coverage in CI by running the same set of lldb tests we run on Linux x86_64 on the new GitHub Linux arm64 runners. ## Overview * Rename and split the `build-linux-lldb` job to run on both `ubuntu-latest` and `ubuntu-24.04-arm` servers, requiring a few adjustments: * Adding a workaround for `gha-setup-ninja` on the arm runners to explicitly specify platform and version * Setting `LLVM_TARGETS_TO_BUILD="host"` instead of `X86` * Updating to a newer revision of `hendrikmuhs/ccache-action` that contains [this PR](hendrikmuhs/ccache-action#280) that fixes sccache support on the arm runners * Split the `test-linux` job to run on both `ubuntu-latest` and `ubuntu-24.04-arm` servers, also requiring a few adjustments: * Defining new test sets in the matrix for aarch64 * Excluding install of the `gcc-multilib` package except when testing i686 since the package is not available on the arm runner * Add new test exclusion files for the tests that fail on Linux aarch64 ## Background ## Validation A number of successful CI runs on the `andrurogerz/ds2` fork: https://github.com/andrurogerz/ds2/actions/runs/12918614369 https://github.com/andrurogerz/ds2/actions/runs/12918977240 https://github.com/andrurogerz/ds2/actions/runs/12918978353 https://github.com/andrurogerz/ds2/actions/runs/12918979141 https://github.com/andrurogerz/ds2/actions/runs/12918979966 https://github.com/andrurogerz/ds2/actions/runs/12919474811 https://github.com/andrurogerz/ds2/actions/runs/12919522262
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Purpose
Enable the
sccachevariant ofccache-actionto run on GitHub Ubuntu arm64 runners.Background
GitHub now supports a public preview of Ubuntu on arm64 runners, announced last week. The new runners can be used by anyone on any public repo.
The current implementation of
cccache-actionunconditionally downloads the Linux x86_64sccachepackage when using thesccachevariant. This package is incompatible with the arm runners.NOTE: The
ccachevariant already works correctly on the arm runners because it installsccachevia the system's package manager.Validation
Updated test workflow to run tests on
ubuntu-24.04-armand verify they pass here.