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 1.0.0-pre 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 = "0.2.0", 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 = "0.2.0")

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/1.0.0-pre/ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-linux-gnu.tar.gz",
    sha256 = "31f71ce24f357afcb04fb4d1bab046ed595455849b4e4dcf60fcca2eab02e0a9",
    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 1.0.0-pre artifacts:

Base URL: https://github.com/eclipse-score/ferrocene_toolchain_builder/releases/download/1.0.0-pre/

File	sha256
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-nto-qnx800.tar.gz	1333d212ddc7718f9a42ec360e5c1a53d5fdc0984ca32d8ffc11ebb4542a69a2
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-linux-gnu.tar.gz	35137bac58f795ea55ab7dd05c3e8534ea6a7f995b475a7798898cd9247e99f0
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-aarch64-unknown-ferrocene.subset.tar.gz	e7ade5d375e0f0dfe7715db038a170fa5a4249e46fb7bc445c84b7ea76761e31
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-linux-gnu.tar.gz	31f71ce24f357afcb04fb4d1bab046ed595455849b4e4dcf60fcca2eab02e0a9
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-unknown-ferrocene.subset.tar.gz	ec6cac9b1d5cfb4569c05c4168cbf5cc61a5e14a8c0bfe39c2c6c2aa9462771e
ferrocene-779fbed05ae9e9fe2a04137929d99cc9b3d516fd-x86_64-pc-nto-qnx800.tar.gz	292be24f2330a134f763ef1f8f820455aeff15ba5b4683553d97f83c98561be8

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