Add config for GCC 15.3.0

[nradakovic]

The new configuration for gcc 15.3.0 is added to be available for developer testing.

resolves: #100

[Copilot]

Pull request overview

Adds Bazel module/toolchain configuration so GCC 15.3.0 packages can be fetched via the repo’s version matrix and used in the test workspace, alongside existing GCC 12.2.0 configurations.

Changes:

• Register GCC 15.3.0 tarball packages in packages/version_matrix.bzl (and generate corresponding external gcc.BUILD package descriptors).
• Add new test-workspace toolchain definitions and .bazelrc configs for selecting GCC 15.3.0.
• Bump score_bazel_platforms (and related lockfiles) to 1.0.0, and bump score_rules_imagefs in the test module.

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/MODULE.bazel.lock	Updates Bazel module lock, including new GCC 15.3 package/toolchain repos.
tests/MODULE.bazel	Adds GCC 15.3 toolchain(s) to the test module and updates module deps.
tests/.bazelrc	Adds Bazel configs to select GCC 15.3 toolchains in tests.
packages/version_matrix.bzl	Registers GCC 15.3.0 in the central package/version matrix.
packages/linux/x86_64/gcc/15.3.0/gcc.BUILD	New external package BUILD for x86_64 GCC 15.3.0 tarball layout.
packages/linux/x86_64/gcc/15.3.0/BUILD	Exposes gcc.BUILD for x86_64 GCC 15.3.0 package.
packages/linux/aarch64/gcc/15.3.0/gcc.BUILD	New external package BUILD for aarch64 GCC 15.3.0 tarball layout.
packages/linux/aarch64/gcc/15.3.0/BUILD	Exposes gcc.BUILD for aarch64 GCC 15.3.0 package.
MODULE.bazel.lock	Updates root module lockfile for score_bazel_platforms bump.
MODULE.bazel	Bumps score_bazel_platforms to 1.0.0.

Suppressed comments (1)

tests/MODULE.bazel:199

• If aarch64 GCC 15.3.0 remains out of scope (per issue #100), it should not be registered in use_repo for the test module.

    "my_toolchain",
    "score_aarch64_gcc_toolchain",
    "score_aarch64_gcc_toolchain_15",
    "score_autosd_10_toolchain",

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 16 changed files in this pull request and generated no new comments.

Suppressed comments (4)

.github/workflows/qnx.yml:16

• The workflow-level permissions now grants actions: write, but the qnx-build job has an explicit permissions: block that omits actions. Job-level permissions override workflow-level permissions, so qnx-build will not actually get actions: write (which may break cache uploads when cache-save is enabled on push).

permissions:
  contents: read
  actions: write

.github/workflows/aarch64-linux.yml:65

• The new aarch64 GCC15 build step doesn’t enforce lockfile immutability. Other Linux workflows run with --lockfile_mode=error to ensure CI doesn’t silently update lockfiles.

      - name: Bazel Build (basic)
        run: |
          bazel build --config=aarch64-linux-gcc15 -- //:language_and_standards_tests //:feature_verification_tests

.github/workflows/aarch64-linux.yml:68

• The new aarch64 GCC15 guardrail test step should also use --lockfile_mode=error for consistency with other CI jobs and to prevent lockfile drift.

      - name: Guardrail (no legacy features)
        run: |
          bazel test --config=aarch64-linux-gcc15 -- //:guardrail_tests

packages/version_matrix.bzl:28

• The PR description says it "resolves: #100", but issue #100’s acceptance criteria includes documentation updates and ensuring the new toolchain is exercised by the existing feature/language test suites. This PR adds the version matrix entries and CI wiring, but does not update any documentation; either add the required docs updates or avoid marking the issue as resolved yet.

    "aarch64-linux-gcc_15.3.0": {
        "build_file": "@score_bazel_cpp_toolchains//packages/linux/aarch64/gcc/15.3.0:gcc.BUILD",
        "sha256": "ff9fe6caed22f15a1dd87a93bff5cfa1536b5dddcff3364827f97ebc01a494a1",
        "strip_prefix": "aarch64-unknown-linux-gnu",
        "url": "https://github.com/eclipse-score/toolchains_gcc_packages/releases/download/v0.0.5/aarch64-unknown-linux-gnu_gcc15.tar.gz",