ci: add riscv64-linux build#619
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Add riscv64gc-unknown-linux-musl to the build matrix using a native ubuntu-24.04-riscv runner (RISE Project), mirroring the arm64-linux pattern which uses ubuntu-22.04-arm. Changes: - Use ubuntu-24.04-riscv runner instead of cross-compilation on x86_64 - Dockerfile.riscv64-linux: Ubuntu 24.04 base (AlmaLinux 8 has no riscv64 image); native build-essential, no cross-compiler env vars - docker-build.sh: skip wasmtime volume mount when WASI_SDK_CI_SKIP_SYSROOT is set (wasmtime is not available on riscv64 runners yet) - WASI_SDK_CI_SKIP_SYSROOT: 1 and WASI_SDK_LLDB=OFF kept as before; sysroot tests require running wasm binaries which needs wasmtime RISE runners are GitHub Actions runners for riscv64, free for open source projects: https://github.com/apps/rise-risc-v-runners Closes WebAssembly#607 Signed-off-by: Bruno Verachten <gounthar@gmail.com>
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Add a
riscv64-linuxmatrix entry using a native RISE riscv64 runner (ubuntu-24.04-riscv), mirroring thearm64-linuxpattern which usesubuntu-22.04-arm.What changed
.github/workflows/main.yml: newriscv64-linuxentry withos: ubuntu-24.04-riscv,WASI_SDK_CI_SKIP_SYSROOT: 1, and-DWASI_SDK_LLDB=OFF. No cross-compilation flags needed — the runner is native riscv64.ci/docker/Dockerfile.riscv64-linux: Ubuntu 24.04 base (AlmaLinux 8 has no riscv64 image). Standardbuild-essentialand build tools; no cross-compiler packages or env vars.ci/docker-build.sh: wasmtime volume mount is now conditional onWASI_SDK_CI_SKIP_SYSROOTbeing unset. wasmtime is not yet available on riscv64 runners, and it is not needed when sysroot tests are skipped.Why WASI_SDK_CI_SKIP_SYSROOT
Running the sysroot tests requires executing wasm binaries via wasmtime, and wasmtime does not yet publish riscv64 binaries. Skipping sysroot tests is the same approach used by
x86_64-macos(cross-architecture wasm execution). The toolchain build itself still completes and produces the riscv64 clang/lld binaries.RISE runners
RISE (RISC-V Software Ecosystem) provides native riscv64 GitHub Actions runners free for open source projects. Access via the GitHub App: https://github.com/apps/rise-risc-v-runners
Closes #607