toolchains_rust

Bazel module that packages prebuilt Ferrocene Rust toolchains and a helper extension to wrap custom Ferrocene archives.

What’s inside

• MODULE.bazel: pins Ferrocene 1.0.1 archives and depends on score_bazel_platforms.
• extensions/ferrocene_toolchain_ext.bzl: bzlmod extension to wrap arbitrary Ferrocene archives.
• toolchains/ferrocene/BUILD.bazel: aliases to the preconfigured toolchains declared in MODULE.bazel.

Note: This module no longer ships platform definitions or the old rust sysroot extension. Consumers must provide rules_rust themselves.

Using the preconfigured Ferrocene toolchains (recommended)

bazel_dep(name = "rules_rust", version = "0.56.0")  # or your pinned version
bazel_dep(name = "score_toolchains_rust", version = "0.3.0", dev_dependency = True)

register_toolchains(
    "@score_toolchains_rust//toolchains/ferrocene:all",
    dev_dependency = True,
)

Wrapping your own Ferrocene archives

bazel_dep(name = "rules_rust", version = "0.56.0")
bazel_dep(name = "score_toolchains_rust", version = "0.3.0")

ferrocene = use_extension(
    "@score_toolchains_rust//extensions:ferrocene_toolchain_ext.bzl",
    "ferrocene_toolchain_ext",
)

ferrocene.toolchain(
    name = "ferrocene_x86_64_unknown_linux_gnu",
    url = "https://github.com/eclipse-score/ferrocene_toolchain_builder/releases/download/1.0.1/ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-linux-gnu.tar.gz",
    sha256 = "4c08b41eaafd39cff66333ca4d4646a5331c780050b8b9a8447353fcd301dddc",
    target_triple = "x86_64-unknown-linux-gnu",
    exec_triple = "x86_64-unknown-linux-gnu",
)

use_repo(ferrocene, "ferrocene_x86_64_unknown_linux_gnu")
register_toolchains("@ferrocene_x86_64_unknown_linux_gnu//:rust_ferrocene_toolchain")

Add more ferrocene.toolchain(...) entries for other archives such as aarch64-unknown-linux-gnu, aarch64-unknown-nto-qnx800, or x86_64-pc-nto-qnx800. For QNX targets, pass the needed environment variables (QNX_HOST, QNX_TARGET, PATH, etc.) to match your SDK layout.

Ferrocene 1.0.1 artifacts:

Base URL: https://github.com/eclipse-score/ferrocene_toolchain_builder/releases/download/1.0.1/

File	sha256
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-nto-qnx800.tar.gz	563a2438324ee1c6fdcfd13fbe352bedf1cf3f0756d07bb7ba7bdca334df92bf
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-linux-gnu.tar.gz	b1f1eb1146bf595fe1f4a65d5793b7039b37d2cb6d395d1c3100fa7d0377b6c9
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-ferrocene.subset.tar.gz	ddbdb8e47f56bbd8b4ddad02e4ec58c270242e9ecd43a9efb44a1099bc5afd58
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-linux-gnu.tar.gz	4c08b41eaafd39cff66333ca4d4646a5331c780050b8b9a8447353fcd301dddc
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-ferrocene.subset.tar.gz	e4dbaab02bfdf2f0f3b008ce14d7770c54bc3cea69fd3bb45778b4a3d36d0fa0
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-pc-nto-qnx800.tar.gz	6daabbe20c0b06551335f83c2490326ce447759628dea04cd1c90d297c3a0bd3

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