toolchains_llvm: add riscv64 host support via MODULE.bazel patches#2364
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monkey-jsun wants to merge 2 commits intogoogle:mainfrom
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toolchains_llvm: add riscv64 host support via MODULE.bazel patches#2364monkey-jsun wants to merge 2 commits intogoogle:mainfrom
monkey-jsun wants to merge 2 commits intogoogle:mainfrom
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Patch rules_rust 0.68.1 to support riscv64 as a host architecture: - Add riscv64gc to supported linux architectures in triple.bzl - Add riscv64gc-unknown-linux-gnu to SUPPORTED_PLATFORM_TRIPLES in crate_universe for generated BUILD files - Register riscv64gc Rust toolchain with Rust 1.86.0
toolchains_llvm 1.6.0 does not support riscv64 as a host architecture. Patch three files to add linux-riscv64: - toolchain/internal/common.bzl: add (linux, riscv64) to SUPPORTED_TARGETS - toolchain/internal/configure.bzl: add riscv64-unknown-linux-gnu target system name mapping - toolchain/cc_toolchain_config.bzl: add linux-riscv64 toolchain config entry mirroring linux-aarch64 Also configure llvm.MODULE.bazel to use the system-installed clang-19 at /usr/lib/llvm-19 as the toolchain root for riscv64, since no prebuilt LLVM distribution exists for riscv64 Linux host.
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Note: this PR depends on #2363 (rules_rust riscv64 support). |
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toolchains_llvm 1.6.0 does not support riscv64 as a host architecture.
Patch three files to add linux-riscv64:
- toolchain/internal/common.bzl: add (linux, riscv64) to SUPPORTED_TARGETS
- toolchain/internal/configure.bzl: add riscv64-unknown-linux-gnu target
system name mapping
- toolchain/cc_toolchain_config.bzl: add linux-riscv64 toolchain config
entry mirroring linux-aarch64
Also configure llvm.MODULE.bazel to use the system-installed clang-19
as the toolchain root for riscv64, since no prebuilt LLVM distribution exists
for riscv64 Linux host.