tooling: define cross-compilation toolchain for ARM64

.bazelrc

@@ -1,48 +1,4 @@
 startup --output_user_root=/tmp/bazel_output
+common --enable_bzlmod
 build --verbose_failures
-build --repo_env=CC=clang
 build --cxxopt=-std=c++17
-
-# Non-critical (Default)
-
-build --cxxopt=-Wall
-build --cxxopt=-Wextra
-build --cxxopt=-Wpedantic
-build --cxxopt=-Wshadow
-build --cxxopt=-Wnon-virtual-dtor
-build --cxxopt=-Wold-style-cast
-build --cxxopt=-Wcast-align
-build --cxxopt=-Wunused
-build --cxxopt=-Woverloaded-virtual
-build --cxxopt=-Wconversion
-build --cxxopt=-Wsign-conversion
-build --cxxopt=-Wmisleading-indentation
-build --cxxopt=-Wnull-dereference
-build --cxxopt=-Wformat=2
-build --cxxopt=-Wimplicit-fallthrough
-build --cxxopt=-Werror
-
-# Disable warning option for external libs
-
-build --per_file_copt=third_party/.*,external/.*@-Wno-all
-build --per_file_copt=third_party/.*,external/.*@-Wno-extra
-build --per_file_copt=third_party/.*,external/.*@-Wno-pedantic
-build --per_file_copt=third_party/.*,external/.*@-Wno-shadow
-build --per_file_copt=third_party/.*,external/.*@-Wno-non-virtual-dtor
-build --per_file_copt=third_party/.*,external/.*@-Wno-old-style-cast
-build --per_file_copt=third_party/.*,external/.*@-Wno-cast-align
-build --per_file_copt=third_party/.*,external/.*@-Wno-unused
-build --per_file_copt=third_party/.*,external/.*@-Wno-overloaded-virtual
-build --per_file_copt=third_party/.*,external/.*@-Wno-conversion
-build --per_file_copt=third_party/.*,external/.*@-Wno-sign-conversion
-build --per_file_copt=third_party/.*,external/.*@-Wno-misleading-indentation
-build --per_file_copt=third_party/.*,external/.*@-Wno-null-dereference
-build --per_file_copt=third_party/.*,external/.*@-Wno-format=2
-build --per_file_copt=third_party/.*,external/.*@-Wno-implicit-fallthrough
-build --per_file_copt=third_party/.*,external/.*@-Wno-everything
-build --per_file_copt=third_party/.*,external/.*@-Wno-error
-
-# Disable warnings incompatible with newer C++ versions
-
-build --cxxopt=-Wno-c++98-compat
-build --cxxopt=-Wno-c++98-compat-pedantic

.github/workflows/check_pr_description.yml

@@ -4,12 +4,15 @@ name: PR description
 on:  # yamllint disable-line rule:truthy
   pull_request:
     types: [opened, edited, synchronize]
+
 jobs:
   check-description:
     runs-on: ubuntu-latest
+
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+
       - name: Check PR description for issue link
         id: contains_issue
         run: |
@@ -25,6 +28,7 @@ jobs:
           else
             echo "PR description contains a valid issue link."
           fi
+
       - name: Fail PR if no issue link found
         if: failure()
         run: |-

.github/workflows/clang_format.yml

@@ -4,6 +4,7 @@ name: Clang-Format
 on:  # yamllint disable-line rule:truthy
   pull_request:
     branches: ['*']
+
 jobs:
   clang-format:
     runs-on: ubuntu-latest

.github/workflows/gitlint.yml

@@ -3,6 +3,7 @@ name: GitLint
 on:  # yamllint disable-line rule:truthy
   pull_request:
     branches: ['*']
+
 jobs:
   gitlint:
     runs-on: ubuntu-latest

.github/workflows/llvm_cov.yml

@@ -1,3 +1,4 @@
+# yamllint disable rule:line-length
 ---
 name: Run llvm-cov
 on:  # yamllint disable-line rule:truthy
@@ -7,14 +8,12 @@ on:  # yamllint disable-line rule:truthy
 jobs:
   coverage:
     runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v3
+    container:
+      image: dtors/base-cpp:latest
 
-      - name: Install LLVM
-        run: |
-          sudo apt update
-          sudo apt install -y llvm
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
 
       - name: Run Coverage Script
-        run: bazel run //tools/coverage:llvm_cov -- -t //examples/cpp:test -s
+        run: bazelisk run //tools/coverage:llvm_cov --platforms=//bazel/platforms:x86_64_linux -- -t //examples/cpp:test -s

.github/workflows/yamllint.yml

@@ -8,9 +8,16 @@ on:  # yamllint disable-line rule:truthy
 jobs:
   yamllint:
     runs-on: ubuntu-latest
+    container:
+      image: dtors/base-cpp:latest
+
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+
+      - name: Configure Git Safe Directory
+        run: |
+          git config --global --add safe.directory $(pwd)
 
       - name: Find affected files
         run: |
@@ -20,7 +27,6 @@ jobs:
           cat affected_files.txt
 
       - name: Find affected yaml files
-        id: bazel_targets
         run: |
           > affected_yaml_files.txt
 
@@ -33,14 +39,8 @@ jobs:
           sort -u affected_yaml_files.txt -o affected_yaml_files.txt
           echo "Affected yaml files:"
           cat affected_yaml_files.txt
-
           echo "yaml_files=$(cat affected_yaml_files.txt | tr '\n' ' ')" >> $GITHUB_ENV
-
-      - name: Install yamllint
-        if: env.yaml_files != ''
-        run: |
-          python -m pip install --upgrade pip
-          pip install yamllint
+        shell: bash
 
       - name: Lint YAML files
         if: env.yaml_files != ''

BUILD

@@ -1,7 +0,0 @@
-filegroup(
-    name = "clang_tidy_config",
-    srcs = [
-        ".clang-tidy",
-    ],
-    visibility = ["//visibility:public"],
-)

Dockerfile

@@ -29,24 +29,47 @@ RUN apt-get update && apt-get install -y \
     libxcb-xkb1 \
     libxcb-cursor0 \
     locales \
-    clang \
-    clang-format \
-    clang-tidy \
-    && apt-get update \
+    qtbase5-dev  \
     && apt-get clean
 
+RUN wget -qO - https://apt.llvm.org/llvm-snapshot.gpg.key | tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc \
+    && echo "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main" | tee -a /etc/apt/sources.list.d/llvm.list
+
+RUN apt-get update && apt-get install -y \
+    llvm-18 \
+    llvm-18-dev \
+    clang-18 \
+    clang-tools-18 \
+    clang-format-18 \
+    clang-tidy-18 \
+    lld-18 \
+    lldb-18
+
+# Cross-compilation
+RUN apt-get install -y \
+    gcc-aarch64-linux-gnu \
+    g++-aarch64-linux-gnu
+
 RUN pip install yamllint
 
 RUN pip install gitlint
 
 RUN curl -fsSL https://raw.githubusercontent.com/arduino/arduino-lint/main/etc/install.sh | sh
 
-RUN wget https://github.com/bazelbuild/bazelisk/releases/download/v1.23.0/bazelisk-linux-amd64 && \
+RUN wget https://github.com/bazelbuild/bazelisk/releases/latest/download/bazelisk-linux-amd64 && \
     chmod 755 bazelisk-linux-amd64 && \
     mv bazelisk-linux-amd64 /usr/bin/bazelisk
 
 ENV HOME=/root
 
+RUN update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-18 100
+
+RUN update-alternatives --install /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-18 100
+
+RUN update-alternatives --install /usr/bin/llvm-cov llvm-cov /usr/bin/llvm-cov-18 100
+
+RUN update-alternatives --install /usr/bin/llvm-profdata llvm-profdata /usr/bin/llvm-profdata-18 100
+
 RUN echo "alias bazel='bazelisk'" >> $HOME/.bashrc
 
 RUN echo 'if [ -d "$HOME/bin" ] ; then\n    PATH="$HOME/bin:$PATH"\nfi' >> $HOME/.bashrc && \

MODULE.bazel

@@ -1,10 +1,25 @@
 bazel_dep(name = "googletest", version = "1.15.2")
+bazel_dep(name = "buildifier_prebuilt", version = "7.3.1")
+bazel_dep(name = "rules_python", version = "1.0.0")
 
-# Hedron's Compile Commands Extractor for Bazel
-# https://github.com/hedronvision/bazel-compile-commands-extractor
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python.toolchain(
+    configure_coverage_tool = False,
+    ignore_root_user_error = True,
+    python_version = "3.12",
+)
+
+# Compile commands
 bazel_dep(name = "hedron_compile_commands", dev_dependency = True)
 git_override(
     module_name = "hedron_compile_commands",
-    remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
     commit = "4f28899228fb3ad0126897876f147ca15026151e",
+    remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
+)
+
+bazel_dep(name = "platforms", version = "0.0.10")
+
+register_toolchains(
+    "//toolchain/x86_64_linux",
+    "//toolchain/aarch64_linux",
 )