Support ARM64 build

Makes it possible to run benchmarks on embedded hardware.

Also-by: Jorge C. Santos <jorge.santos2@etas.com>

Author: NEOatNHNG

.bazelrc

@@ -1,16 +1,56 @@
+# *******************************************************************************
+# Copyright (c) 2025 ETAS GmbH
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+# Java Language Configuration
 build --java_language_version=17
 build --tool_java_language_version=17
 build --java_runtime_version=remotejdk_17
 build --tool_java_runtime_version=remotejdk_17
 
+# ============================================================================
+# Multi-Architecture Build Configuration
+# ============================================================================
+# These configs enable building for different target architectures.
+#
+# Usage:
+#   bazel build //... --config=x86_64-linux    # Build for x86_64 (native on x86_64 host)
+#   bazel build //... --config=arm64-linux     # Build for ARM64/aarch64 (cross-compile)
+#
+# Platform Definitions:
+#   @score_bazel_platforms//:x86_64-linux  - x86_64 architecture (GNU/Linux)
+#   @score_bazel_platforms//:arm64-linux   - ARM64/aarch64 architecture (GNU/Linux)
+build:x86_64-linux --platforms=@score_bazel_platforms//:x86_64-linux
+build:x86_64-linux --define=config=x86_64-linux
+build:x86_64-linux --repo_env=TARGET_ARCH=x86_64
+
+build:arm64-linux --platforms=@score_bazel_platforms//:arm64-linux
+build:arm64-linux --extra_toolchains=@llvm_toolchain//:cc-toolchain-aarch64-linux
+build:arm64-linux --incompatible_enable_cc_toolchain_resolution
+build:arm64-linux --define=config=arm64-linux
+build:arm64-linux --repo_env=TARGET_ARCH=aarch64
+
 test --test_output=errors
 
 common --registry=https://raw.githubusercontent.com/eclipse-score/bazel_registry/main/
 common --registry=https://bcr.bazel.build
 
-# Feature flags
+# ============================================================================
+# Feature Flags & S-CORE Configuration
+# ============================================================================
 common --features=-treat_warnings_as_errors
 common --features=external_include_paths
+
+# S-CORE Base Libraries and Communication Configuration
 common --@score-baselibs//score/mw/log/detail/flags:KUse_Stub_Implementation_Only=False
 common --@score-baselibs//score/mw/log/flags:KRemote_Logging=False
 common --@score-baselibs//score/json:base_library=nlohmann

MODULE.bazel

@@ -13,11 +13,14 @@
 # *******************************************************************************
 
 "S-CORE SOME/IP Gateway"
-
 module(name = "score_someip_gateway")
 
+# ============================================================================
+# Python Configuration
+# ============================================================================
 bazel_dep(name = "rules_python", version = "1.4.1")
 
+# Python 3.12: Required for testing infrastructure and code generation tools
 PYTHON_VERSION = "3.12"
 
 python = use_extension("@rules_python//python/extensions:python.bzl", "python")
@@ -43,119 +46,196 @@ pip.parse(
 )
 use_repo(pip, "someip_pip")
 
-# Add GoogleTest dependency
+# ============================================================================
+# Testing & Performance Measurement
+# ============================================================================
 bazel_dep(name = "googletest", version = "1.17.0")
-
-# Add Google Benchmark dependency for performance testing
 bazel_dep(name = "google_benchmark", version = "1.9.1")
 
-# Rust rules for Bazel
+# ============================================================================
+# Build System Rules
+# ============================================================================
+bazel_dep(name = "rules_cc", version = "0.2.14")
 bazel_dep(name = "rules_rust", version = "0.63.0")
+bazel_dep(name = "rules_pkg", version = "1.1.0")
+
+# Platforms: Standard constraint values and platform definitions
+# Required for select() expressions that use @platforms//cpu:* and @platforms//os:*
+bazel_dep(name = "platforms", version = "1.0.0")
+
+# ============================================================================
+# Toolchains & Platform Configuration
+# ============================================================================
+# S-CORE Platform Definitions: Provides constraint values and platform definitions
+bazel_dep(name = "score_bazel_platforms", version = "0.0.2")
+
+# LLVM Toolchain: C/C++ cross-compilation support for x86_64 and aarch64
+# Integrates with LLVM 19.1.0 and Debian Bullseye sysroots
+bazel_dep(name = "toolchains_llvm", version = "1.5.0")
+
+# Rust Toolchain Extension: Manages sysroot download and toolchain registration
+bazel_dep(name = "score_toolchains_rust", version = "0.1")
+git_override(
+    module_name = "score_toolchains_rust",
+    remote = "https://github.com/eclipse-score/toolchains_rust.git",
+    commit = "5614e4b273f2f5302d47a05d7e58dae86f97a3c3",  # Last verified: 23.08.2025
+)
+
+# ============================================================================
+# Optional Toolchain Dependencies
+# ============================================================================
+# We provide a local stub to satisfy module resolution without adding QNX support.
+bazel_dep(name = "rust_qnx8_toolchain", version = "1.0.0")
+local_path_override(
+    module_name = "rust_qnx8_toolchain",
+    path = "bazel_stubs/rust_qnx8_toolchain",
+)
 
-# C/C++ rules for Bazel
-bazel_dep(name = "rules_cc", version = "0.2.1")
+# ============================================================================
+# Sysroot Management for Multi-Architecture Support
+# ============================================================================
+# Downloads and registers Debian Bullseye sysroots for both x86_64 and aarch64.
+# These sysroots are used by both LLVM (C++) and Rust toolchains for cross-compilation.
+rust_ext = use_extension("@score_toolchains_rust//extensions:rust_toolchain_ext.bzl", "rust_toolchain_ext")
+rust_ext.sysroot(
+    name = "sysroot_linux_x64",
+    url = "https://commondatastorage.googleapis.com/chrome-linux-sysroot/toolchain/4f611ec025be98214164d4bf9fbe8843f58533f7/debian_bullseye_amd64_sysroot.tar.xz",
+    sha256 = "5df5be9357b425cdd70d92d4697d07e7d55d7a923f037c22dc80a78e85842d2c",
+    strip_prefix = "",
+    build_file = "@score_toolchains_rust//sysroot:BUILD.bazel",
+)
+rust_ext.sysroot(
+    name = "sysroot_linux_aarch64",
+    url = "https://commondatastorage.googleapis.com/chrome-linux-sysroot/toolchain/906cc7c6bf47d4bd969a3221fc0602c6b3153caa/debian_bullseye_arm64_sysroot.tar.xz",
+    sha256 = "d303cf3faf7804c9dd24c9b6b167d0345d41d7fe4bfb7d34add3ab342f6a236c",
+    strip_prefix = "",
+    build_file = "@score_toolchains_rust//sysroot:BUILD.bazel",
+)
 
-# LLVM Toolchains Rules - host configuration
-bazel_dep(name = "toolchains_llvm", version = "1.4.0")
+use_repo(rust_ext, "sysroot_linux_x64")
+use_repo(rust_ext, "sysroot_linux_aarch64")
 
+# ============================================================================
+# LLVM C/C++ Toolchain Configuration
+# ============================================================================
+# Configures LLVM 19.1.0 for C/C++ compilation with cross-architecture support.
 llvm = use_extension("@toolchains_llvm//toolchain/extensions:llvm.bzl", "llvm")
 llvm.toolchain(
+    name = "llvm_toolchain",
     cxx_standard = {"": "c++17"},
     llvm_version = "19.1.0",
 )
-use_repo(llvm, "llvm_toolchain")
-use_repo(llvm, "llvm_toolchain_llvm")
+llvm.sysroot(
+    name = "llvm_toolchain",
+    label = "@sysroot_linux_x64//:sysroot",
+    targets = ["linux-x86_64"],
+)
+llvm.sysroot(
+    name = "llvm_toolchain",
+    label = "@sysroot_linux_aarch64//:sysroot",
+    targets = ["linux-aarch64"],
+)
 
+use_repo(llvm, "llvm_toolchain")
 register_toolchains("@llvm_toolchain//:all")
 
-# tooling
+# ============================================================================
+# Rust Toolchain Configuration for Multi-Architecture Support
+# ============================================================================
+# Configures rules_rust to compile for both x86_64 and aarch64 targets.
+rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
+rust.toolchain(
+    edition = "2021",
+    extra_target_triples = ["x86_64-unknown-linux-gnu", "aarch64-unknown-linux-gnu"],
+    versions = ["1.83.0"],
+)
+use_repo(rust, "rust_toolchains")
+register_toolchains("@rust_toolchains//:all")
+
+# ============================================================================
+# Tooling & Development
+# ============================================================================
 bazel_dep(name = "score_tooling", version = "1.0.2")
 bazel_dep(name = "aspect_rules_lint", version = "1.5.3")
 bazel_dep(name = "buildifier_prebuilt", version = "8.2.0.2")
 
-# docs-as-code
+# ============================================================================
+# Documentation
+# ============================================================================
 bazel_dep(name = "score_docs_as_code", version = "1.4.0")
 
-# communication
-bazel_dep(name = "communication", version = "0.0.0")
-git_override(
-    module_name = "communication",
-    commit = "86c66f345fdd35dcc3f380905e799f559dfd5001",
-    remote = "https://github.com/eclipse-score/communication.git",
-)
-
-# TODO: These should fetched via registry and we shouldn't have to care about updating them
+# ============================================================================
+# Dependency Chain Compatibility
+# ============================================================================
+# TODO: Migrate rules_boost to Bazel Central Registry once compatible versions available.
+# Currently using archive_override to pin master branch for compatibility with other deps.
 archive_override(
     module_name = "rules_boost",
     integrity = "sha256-iKHWUIBrUN/fFOCltkTmHfDcKw0h4ZVmP7NVSoc8zBs=",
     strip_prefix = "rules_boost-master",
     urls = ["https://github.com/nelhage/rules_boost/archive/refs/heads/master.tar.gz"],
 )
 
-bazel_dep(name = "score-baselibs", version = "0.0.0")
+# ============================================================================
+# Communication Framework
+# ============================================================================
+bazel_dep(name = "communication", version = "0.0.0")
 git_override(
+    module_name = "communication",
+    commit = "86c66f345fdd35dcc3f380905e799f559dfd5001",
+    remote = "https://github.com/eclipse-score/communication.git",
+)
+
+# ============================================================================
+# Base Libraries
+# ============================================================================
+# ============================================================================
+# Base Libraries
+# ============================================================================
+# Patch note: baselibs-multiarch.patch adds multi-arch support for .deb downloads.
+# score-baselibs hardcodes amd64 URLs; patch replaces them with architecture-aware
+# selection (x86_64 or aarch64) based on TARGET_ARCH environment variable.
+bazel_dep(name = "score-baselibs", version = "0.0.0")
+archive_override(
     module_name = "score-baselibs",
-    commit = "f02d7f427df1968df8d5f9f9aa85bf68baeb839e",
-    remote = "https://github.com/eclipse-score/baselibs.git",
+    urls = ["https://github.com/eclipse-score/baselibs/archive/f02d7f427df1968df8d5f9f9aa85bf68baeb839e.tar.gz"],
+    strip_prefix = "baselibs-f02d7f427df1968df8d5f9f9aa85bf68baeb839e",
+    patches = ["//patches:baselibs-multiarch.patch"],
+    patch_strip = 1,
 )
 
+# ============================================================================
+# Code Generation - FlatBuffers
+# ============================================================================
+bazel_dep(name = "flatbuffers", version = "25.2.10")
+
+# TRLC: Traceability Language Compiler for requirements management
 git_override(
     module_name = "trlc",
     commit = "650b51a47264a4f232b3341f473527710fc32669",  # trlc-2.0.2 release
     remote = "https://github.com/bmw-software-engineering/trlc.git",
 )
 
-bazel_dep(name = "flatbuffers", version = "25.2.10")
-
-###################################################################################
-# Examples
-###################################################################################
-
-#-------------------------------------------------------------
-# Crate index for hello world example
-#-------------------------------------------------------------
+# ============================================================================
+# Examples: Car Window Simulator
+# ============================================================================
 car_window_sim_crate = use_extension("@rules_rust//crate_universe:extensions.bzl", "crate")
-car_window_sim_crate.spec(
-    package = "rustyrepl",
-    version = "0.2.0",
-)  #//,features = ["async"])
-car_window_sim_crate.spec(
-    package = "anyhow",
-    version = "1",
-)
-car_window_sim_crate.spec(
-    package = "async-trait",
-    version = "0.1",
-)
-car_window_sim_crate.spec(
-    features = ["derive"],
-    package = "clap",
-    version = "4",
-)
-car_window_sim_crate.spec(
-    features = ["full"],
-    package = "tokio",
-    version = "1.10",
-)
+car_window_sim_crate.spec(package = "rustyrepl", version = "0.2.0")
+car_window_sim_crate.spec(package = "anyhow", version = "1")
+car_window_sim_crate.spec(package = "async-trait", version = "0.1")
+car_window_sim_crate.spec(features = ["derive"], package = "clap", version = "4")
+car_window_sim_crate.spec(features = ["full"], package = "tokio", version = "1.10")
 car_window_sim_crate.from_specs(name = "car_window_sim_crate")
 use_repo(car_window_sim_crate, "car_window_sim_crate")
 
-###################################################################################
-# vsomeip integration
-###################################################################################
-bazel_dep(name = "rules_foreign_cc", version = "0.15.0")
+# ============================================================================
+# SOME/IP Stack Integration
+# ============================================================================
+# Rules for Foreign/C/C++/CMake integration
+bazel_dep(name = "rules_foreign_cc", version = "0.15.1")
 
 http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-_ALL_CONTENT = """
-filegroup(
-    name = "all_srcs",
-    srcs = glob(["**"]),
-    visibility = ["//visibility:public"],
-)
-"""
-
-# Boost
 http_archive(
     name = "boost",
     build_file_content = """
@@ -165,15 +245,14 @@ filegroup(
     visibility = ["//visibility:public"],
 )
 """,
-    sha256 = "af57be25cb4c4f4b413ed692fe378affb4352ea50fbe294a11ef548f4d527d89",
-    strip_prefix = "boost_1_87_0",
-    urls = ["https://archives.boost.io/release/1.87.0/source/boost_1_87_0.tar.bz2"],
+    sha256 = "7da75f171837577a52bbf217e17f8ea576c7c246e4594d617bfde7fafd408be5",
+    strip_prefix = "boost-1.87.0",
+    urls = ["https://github.com/boostorg/boost/releases/download/boost-1.87.0/boost-1.87.0-cmake.tar.xz"],
 )
 
-# pcre source code repository
 http_archive(
     name = "vsomeip",
-    build_file_content = _ALL_CONTENT,
+    build_file = "@//:vsomeip.BUILD.bazel",
     sha256 = "659421fa01c0f56e5587c82f476c18a593e1a7ad4b381d95b57821d0545dae53",
     strip_prefix = "vsomeip-3.5.7",
     urls = [

TODO.md

@@ -41,7 +41,7 @@
 
 ### Build & Dependencies
 - [ ] Optimize Bazel build configuration
-    - [ ] Build vsomeip using native bazel or at least improve the Boost dependency
+    - [x] Build vsomeip using native bazel or at least improve the Boost dependency
     - [ ] Right now the clang++ from the environment is somehow visible in the sandbox when building Boost which also makes it necessary that you have clang installed on your host. We should improve the sandboxing so that clang from the host system is no longer visible to any build.
 - [ ] Update dependency versions
 - [ ] Try out running on QNX

bazel_stubs/rust_qnx8_toolchain/MODULE.bazel

@@ -0,0 +1,12 @@
+"""Stub module for rust_qnx8_toolchain.
+
+This is a minimal stub to satisfy the dependency declared by score_toolchains_rust.
+QNX support is not needed for S-CORE SOME/IP Gateway (Linux targets only).
+"""
+
+module(
+    name = "rust_qnx8_toolchain",
+    version = "1.0.0",
+)
+
+# No dependencies or content - this is a pure stub to satisfy module resolution.